./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/bitvector/byte_add_1-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version e943c265 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/bitvector/byte_add_1-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be --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 0f228df5326e9a2af4c8b4cabb1b0357f6cae28b0c974d7c12db65aaebce6a00 ...................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.1-dev-e943c26 [2021-10-21 20:00:56,358 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-21 20:00:56,366 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-21 20:00:56,420 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-21 20:00:56,421 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-21 20:00:56,422 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-21 20:00:56,424 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-21 20:00:56,427 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-21 20:00:56,429 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-21 20:00:56,430 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-21 20:00:56,431 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-21 20:00:56,433 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-21 20:00:56,434 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-21 20:00:56,435 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-21 20:00:56,437 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-21 20:00:56,439 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-21 20:00:56,440 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-21 20:00:56,441 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-21 20:00:56,443 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-21 20:00:56,446 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-21 20:00:56,448 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-21 20:00:56,450 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-21 20:00:56,451 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-21 20:00:56,453 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-21 20:00:56,456 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-21 20:00:56,457 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-21 20:00:56,457 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-21 20:00:56,459 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-21 20:00:56,459 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-21 20:00:56,461 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-21 20:00:56,461 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-21 20:00:56,462 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-21 20:00:56,463 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-21 20:00:56,464 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-21 20:00:56,466 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-21 20:00:56,466 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-21 20:00:56,467 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-21 20:00:56,468 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-21 20:00:56,468 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-21 20:00:56,469 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-21 20:00:56,470 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-21 20:00:56,475 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/config/svcomp-Termination-32bit-Automizer_Default.epf [2021-10-21 20:00:56,501 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-21 20:00:56,502 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-21 20:00:56,502 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-21 20:00:56,502 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-21 20:00:56,504 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-21 20:00:56,504 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-21 20:00:56,504 INFO L138 SettingsManager]: * Use SBE=true [2021-10-21 20:00:56,504 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-10-21 20:00:56,504 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-10-21 20:00:56,505 INFO L138 SettingsManager]: * Use old map elimination=false [2021-10-21 20:00:56,505 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-10-21 20:00:56,505 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-10-21 20:00:56,505 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-10-21 20:00:56,505 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-21 20:00:56,506 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-21 20:00:56,506 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-21 20:00:56,506 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-21 20:00:56,506 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-21 20:00:56,506 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-21 20:00:56,507 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-10-21 20:00:56,507 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-10-21 20:00:56,507 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-10-21 20:00:56,507 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-21 20:00:56,507 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-21 20:00:56,508 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-10-21 20:00:56,508 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-21 20:00:56,508 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-10-21 20:00:56,508 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-21 20:00:56,509 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-21 20:00:56,509 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-21 20:00:56,509 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-21 20:00:56,509 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-21 20:00:56,510 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-10-21 20:00:56,511 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_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0f228df5326e9a2af4c8b4cabb1b0357f6cae28b0c974d7c12db65aaebce6a00 [2021-10-21 20:00:56,770 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-21 20:00:56,801 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-21 20:00:56,804 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-21 20:00:56,806 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-21 20:00:56,807 INFO L275 PluginConnector]: CDTParser initialized [2021-10-21 20:00:56,808 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/../../sv-benchmarks/c/bitvector/byte_add_1-1.i [2021-10-21 20:00:56,871 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/data/7ea936b85/c38a2b28953d435f9cda3e5e12498397/FLAG3525184aa [2021-10-21 20:00:57,439 INFO L306 CDTParser]: Found 1 translation units. [2021-10-21 20:00:57,440 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/sv-benchmarks/c/bitvector/byte_add_1-1.i [2021-10-21 20:00:57,449 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/data/7ea936b85/c38a2b28953d435f9cda3e5e12498397/FLAG3525184aa [2021-10-21 20:00:57,774 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/data/7ea936b85/c38a2b28953d435f9cda3e5e12498397 [2021-10-21 20:00:57,776 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-21 20:00:57,778 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-21 20:00:57,779 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-21 20:00:57,779 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-21 20:00:57,797 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-21 20:00:57,798 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.10 08:00:57" (1/1) ... [2021-10-21 20:00:57,799 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1257d239 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:00:57, skipping insertion in model container [2021-10-21 20:00:57,799 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.10 08:00:57" (1/1) ... [2021-10-21 20:00:57,805 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-21 20:00:57,828 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-21 20:00:57,987 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_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/sv-benchmarks/c/bitvector/byte_add_1-1.i[863,876] [2021-10-21 20:00:58,082 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-21 20:00:58,094 INFO L203 MainTranslator]: Completed pre-run [2021-10-21 20:00:58,122 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_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/sv-benchmarks/c/bitvector/byte_add_1-1.i[863,876] [2021-10-21 20:00:58,170 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-21 20:00:58,183 INFO L208 MainTranslator]: Completed translation [2021-10-21 20:00:58,184 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:00:58 WrapperNode [2021-10-21 20:00:58,184 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-21 20:00:58,185 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-21 20:00:58,185 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-21 20:00:58,185 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-21 20:00:58,193 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:00:58" (1/1) ... [2021-10-21 20:00:58,201 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:00:58" (1/1) ... [2021-10-21 20:00:58,226 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-21 20:00:58,227 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-21 20:00:58,227 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-21 20:00:58,227 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-21 20:00:58,235 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:00:58" (1/1) ... [2021-10-21 20:00:58,236 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:00:58" (1/1) ... [2021-10-21 20:00:58,238 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:00:58" (1/1) ... [2021-10-21 20:00:58,238 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:00:58" (1/1) ... [2021-10-21 20:00:58,244 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:00:58" (1/1) ... [2021-10-21 20:00:58,250 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:00:58" (1/1) ... [2021-10-21 20:00:58,252 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:00:58" (1/1) ... [2021-10-21 20:00:58,254 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-21 20:00:58,255 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-21 20:00:58,255 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-21 20:00:58,256 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-21 20:00:58,257 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:00:58" (1/1) ... [2021-10-21 20:00:58,264 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:00:58,278 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:00:58,290 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:00:58,312 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-10-21 20:00:58,342 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-21 20:00:58,343 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-21 20:00:58,343 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-21 20:00:58,343 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-21 20:00:58,708 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-21 20:00:58,708 INFO L299 CfgBuilder]: Removed 10 assume(true) statements. [2021-10-21 20:00:58,710 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 08:00:58 BoogieIcfgContainer [2021-10-21 20:00:58,710 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-21 20:00:58,711 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-10-21 20:00:58,712 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-10-21 20:00:58,715 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-10-21 20:00:58,716 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-21 20:00:58,716 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 21.10 08:00:57" (1/3) ... [2021-10-21 20:00:58,717 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@5e064a67 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 21.10 08:00:58, skipping insertion in model container [2021-10-21 20:00:58,717 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-21 20:00:58,717 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:00:58" (2/3) ... [2021-10-21 20:00:58,718 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@5e064a67 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 21.10 08:00:58, skipping insertion in model container [2021-10-21 20:00:58,718 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-21 20:00:58,718 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 08:00:58" (3/3) ... [2021-10-21 20:00:58,720 INFO L389 chiAutomizerObserver]: Analyzing ICFG byte_add_1-1.i [2021-10-21 20:00:58,785 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-10-21 20:00:58,785 INFO L360 BuchiCegarLoop]: Hoare is false [2021-10-21 20:00:58,785 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-10-21 20:00:58,785 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-10-21 20:00:58,785 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-10-21 20:00:58,785 INFO L364 BuchiCegarLoop]: Difference is false [2021-10-21 20:00:58,785 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-10-21 20:00:58,786 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-10-21 20:00:58,806 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) [2021-10-21 20:00:58,831 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 23 [2021-10-21 20:00:58,831 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-21 20:00:58,832 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-21 20:00:58,839 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2021-10-21 20:00:58,839 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 20:00:58,839 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-10-21 20:00:58,839 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) [2021-10-21 20:00:58,843 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 23 [2021-10-21 20:00:58,843 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-21 20:00:58,843 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-21 20:00:58,844 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2021-10-21 20:00:58,844 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 20:00:58,850 INFO L791 eck$LassoCheckResult]: Stem: 22#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string0.base, #t~string0.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string0.base, #t~string0.offset, 1);call write~init~int(0, #t~string0.base, 1 + #t~string0.offset, 1);call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(15); 12#L-1true havoc main_#res;havoc main_#t~nondet3, main_#t~ret4, main_~a~0, main_~b~0, main_~r~1;havoc main_~a~0;havoc main_~b~0;havoc main_~r~1;main_~b~0 := main_#t~nondet3;havoc main_#t~nondet3;main_~a~0 := 234770789;mp_add_#in~a, mp_add_#in~b := main_~a~0, main_~b~0;havoc mp_add_#res;havoc mp_add_~a, mp_add_~b, mp_add_~a0~0, mp_add_~a1~0, mp_add_~a2~0, mp_add_~a3~0, mp_add_~b0~0, mp_add_~b1~0, mp_add_~b2~0, mp_add_~b3~0, mp_add_~r0~0, mp_add_~r1~0, mp_add_~r2~0, mp_add_~r3~0, mp_add_~carry~0, mp_add_~partial_sum~0, mp_add_~r~0, mp_add_~i~0, mp_add_~na~0, mp_add_~nb~0;mp_add_~a := mp_add_#in~a;mp_add_~b := mp_add_#in~b;havoc mp_add_~a0~0;havoc mp_add_~a1~0;havoc mp_add_~a2~0;havoc mp_add_~a3~0;havoc mp_add_~b0~0;havoc mp_add_~b1~0;havoc mp_add_~b2~0;havoc mp_add_~b3~0;havoc mp_add_~r0~0;havoc mp_add_~r1~0;havoc mp_add_~r2~0;havoc mp_add_~r3~0;havoc mp_add_~carry~0;havoc mp_add_~partial_sum~0;havoc mp_add_~r~0;havoc mp_add_~i~0;havoc mp_add_~na~0;havoc mp_add_~nb~0;mp_add_~a0~0 := mp_add_~a;mp_add_~a1~0 := mp_add_~a / 256;mp_add_~a2~0 := mp_add_~a / 65536;mp_add_~a3~0 := mp_add_~a / 16777216;mp_add_~b0~0 := mp_add_~b;mp_add_~b1~0 := mp_add_~b / 256;mp_add_~b2~0 := mp_add_~b / 65536;mp_add_~b3~0 := mp_add_~b / 16777216;mp_add_~na~0 := 4; 7#L51true assume !(0 == mp_add_~a3~0 % 256); 15#L51-1true mp_add_~nb~0 := 4; 8#L61true assume !(0 == mp_add_~b3~0 % 256); 18#L61-1true mp_add_~carry~0 := 0;mp_add_~i~0 := 0; 13#L72-2true [2021-10-21 20:00:58,851 INFO L793 eck$LassoCheckResult]: Loop: 13#L72-2true assume !!((mp_add_~i~0 % 256 < mp_add_~na~0 % 256 || mp_add_~i~0 % 256 < mp_add_~nb~0 % 256) || 0 != mp_add_~carry~0 % 65536);mp_add_~partial_sum~0 := mp_add_~carry~0;mp_add_~carry~0 := 0; 34#L75true assume !(mp_add_~i~0 % 256 < mp_add_~na~0 % 256); 36#L75-1true assume !(mp_add_~i~0 % 256 < mp_add_~nb~0 % 256); 27#L81true assume mp_add_~partial_sum~0 % 65536 > 255;mp_add_~partial_sum~0 := ~bitwiseAnd(mp_add_~partial_sum~0 % 65536, 255);mp_add_~carry~0 := 1; 14#L87-1true assume 0 == mp_add_~i~0 % 256;mp_add_~r0~0 := mp_add_~partial_sum~0; 10#L91-1true assume 1 == mp_add_~i~0 % 256;mp_add_~r1~0 := mp_add_~partial_sum~0; 11#L92-1true assume 2 == mp_add_~i~0 % 256;mp_add_~r2~0 := mp_add_~partial_sum~0; 20#L93-1true assume 3 == mp_add_~i~0 % 256;mp_add_~r3~0 := mp_add_~partial_sum~0; 17#L94-1true mp_add_~i~0 := 1 + mp_add_~i~0 % 256; 13#L72-2true [2021-10-21 20:00:58,857 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:00:58,857 INFO L82 PathProgramCache]: Analyzing trace with hash 889938151, now seen corresponding path program 1 times [2021-10-21 20:00:58,866 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:00:58,867 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2125845127] [2021-10-21 20:00:58,867 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:00:58,868 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:00:59,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:00:59,032 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 20:00:59,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:00:59,111 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 20:00:59,114 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:00:59,115 INFO L82 PathProgramCache]: Analyzing trace with hash 318197182, now seen corresponding path program 1 times [2021-10-21 20:00:59,115 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:00:59,115 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [369876604] [2021-10-21 20:00:59,115 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:00:59,116 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:00:59,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:00:59,218 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 20:00:59,218 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 20:00:59,219 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [369876604] [2021-10-21 20:00:59,222 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [369876604] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-21 20:00:59,222 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-21 20:00:59,223 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-21 20:00:59,223 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1940419472] [2021-10-21 20:00:59,228 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-10-21 20:00:59,231 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 20:00:59,250 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-21 20:00:59,250 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-21 20:00:59,253 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) [2021-10-21 20:00:59,445 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 20:00:59,445 INFO L93 Difference]: Finished difference Result 64 states and 94 transitions. [2021-10-21 20:00:59,446 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-21 20:00:59,448 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 64 states and 94 transitions. [2021-10-21 20:00:59,452 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 41 [2021-10-21 20:00:59,456 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 64 states to 56 states and 86 transitions. [2021-10-21 20:00:59,458 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 56 [2021-10-21 20:00:59,458 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 56 [2021-10-21 20:00:59,459 INFO L73 IsDeterministic]: Start isDeterministic. Operand 56 states and 86 transitions. [2021-10-21 20:00:59,460 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-21 20:00:59,460 INFO L681 BuchiCegarLoop]: Abstraction has 56 states and 86 transitions. [2021-10-21 20:00:59,478 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56 states and 86 transitions. [2021-10-21 20:00:59,490 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56 to 54. [2021-10-21 20:00:59,492 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) [2021-10-21 20:00:59,493 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 84 transitions. [2021-10-21 20:00:59,494 INFO L704 BuchiCegarLoop]: Abstraction has 54 states and 84 transitions. [2021-10-21 20:00:59,495 INFO L587 BuchiCegarLoop]: Abstraction has 54 states and 84 transitions. [2021-10-21 20:00:59,495 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-10-21 20:00:59,495 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 54 states and 84 transitions. [2021-10-21 20:00:59,497 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 39 [2021-10-21 20:00:59,497 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-21 20:00:59,497 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-21 20:00:59,498 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 20:00:59,498 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 20:00:59,499 INFO L791 eck$LassoCheckResult]: Stem: 134#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string0.base, #t~string0.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string0.base, #t~string0.offset, 1);call write~init~int(0, #t~string0.base, 1 + #t~string0.offset, 1);call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(15); 124#L-1 havoc main_#res;havoc main_#t~nondet3, main_#t~ret4, main_~a~0, main_~b~0, main_~r~1;havoc main_~a~0;havoc main_~b~0;havoc main_~r~1;main_~b~0 := main_#t~nondet3;havoc main_#t~nondet3;main_~a~0 := 234770789;mp_add_#in~a, mp_add_#in~b := main_~a~0, main_~b~0;havoc mp_add_#res;havoc mp_add_~a, mp_add_~b, mp_add_~a0~0, mp_add_~a1~0, mp_add_~a2~0, mp_add_~a3~0, mp_add_~b0~0, mp_add_~b1~0, mp_add_~b2~0, mp_add_~b3~0, mp_add_~r0~0, mp_add_~r1~0, mp_add_~r2~0, mp_add_~r3~0, mp_add_~carry~0, mp_add_~partial_sum~0, mp_add_~r~0, mp_add_~i~0, mp_add_~na~0, mp_add_~nb~0;mp_add_~a := mp_add_#in~a;mp_add_~b := mp_add_#in~b;havoc mp_add_~a0~0;havoc mp_add_~a1~0;havoc mp_add_~a2~0;havoc mp_add_~a3~0;havoc mp_add_~b0~0;havoc mp_add_~b1~0;havoc mp_add_~b2~0;havoc mp_add_~b3~0;havoc mp_add_~r0~0;havoc mp_add_~r1~0;havoc mp_add_~r2~0;havoc mp_add_~r3~0;havoc mp_add_~carry~0;havoc mp_add_~partial_sum~0;havoc mp_add_~r~0;havoc mp_add_~i~0;havoc mp_add_~na~0;havoc mp_add_~nb~0;mp_add_~a0~0 := mp_add_~a;mp_add_~a1~0 := mp_add_~a / 256;mp_add_~a2~0 := mp_add_~a / 65536;mp_add_~a3~0 := mp_add_~a / 16777216;mp_add_~b0~0 := mp_add_~b;mp_add_~b1~0 := mp_add_~b / 256;mp_add_~b2~0 := mp_add_~b / 65536;mp_add_~b3~0 := mp_add_~b / 16777216;mp_add_~na~0 := 4; 114#L51 assume !(0 == mp_add_~a3~0 % 256); 115#L51-1 mp_add_~nb~0 := 4; 117#L61 assume !(0 == mp_add_~b3~0 % 256); 118#L61-1 mp_add_~carry~0 := 0;mp_add_~i~0 := 0; 125#L72-2 assume !!((mp_add_~i~0 % 256 < mp_add_~na~0 % 256 || mp_add_~i~0 % 256 < mp_add_~nb~0 % 256) || 0 != mp_add_~carry~0 % 65536);mp_add_~partial_sum~0 := mp_add_~carry~0;mp_add_~carry~0 := 0; 126#L75 assume !(mp_add_~i~0 % 256 < mp_add_~na~0 % 256); 146#L75-1 [2021-10-21 20:00:59,499 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 [2021-10-21 20:00:59,500 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:00:59,500 INFO L82 PathProgramCache]: Analyzing trace with hash 532072804, now seen corresponding path program 1 times [2021-10-21 20:00:59,500 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:00:59,501 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [957580940] [2021-10-21 20:00:59,501 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:00:59,501 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:00:59,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:00:59,735 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 20:00:59,737 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 20:00:59,737 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [957580940] [2021-10-21 20:00:59,738 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [957580940] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-21 20:00:59,738 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-21 20:00:59,739 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-21 20:00:59,739 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1373962933] [2021-10-21 20:00:59,740 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-10-21 20:00:59,742 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:00:59,743 INFO L82 PathProgramCache]: Analyzing trace with hash 1939143242, now seen corresponding path program 1 times [2021-10-21 20:00:59,743 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:00:59,744 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [623864850] [2021-10-21 20:00:59,744 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:00:59,745 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:00:59,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:00:59,820 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 20:00:59,820 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 20:00:59,821 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [623864850] [2021-10-21 20:00:59,821 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [623864850] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-21 20:00:59,821 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-21 20:00:59,821 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-21 20:00:59,823 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [570903264] [2021-10-21 20:00:59,827 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-10-21 20:00:59,827 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 20:00:59,828 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-21 20:00:59,828 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-21 20:00:59,829 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) [2021-10-21 20:01:00,165 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 20:01:00,165 INFO L93 Difference]: Finished difference Result 149 states and 228 transitions. [2021-10-21 20:01:00,166 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-21 20:01:00,166 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 149 states and 228 transitions. [2021-10-21 20:01:00,170 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 108 [2021-10-21 20:01:00,173 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 149 states to 149 states and 228 transitions. [2021-10-21 20:01:00,173 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 149 [2021-10-21 20:01:00,174 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 149 [2021-10-21 20:01:00,174 INFO L73 IsDeterministic]: Start isDeterministic. Operand 149 states and 228 transitions. [2021-10-21 20:01:00,175 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-21 20:01:00,175 INFO L681 BuchiCegarLoop]: Abstraction has 149 states and 228 transitions. [2021-10-21 20:01:00,176 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 149 states and 228 transitions. [2021-10-21 20:01:00,182 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 149 to 78. [2021-10-21 20:01:00,183 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) [2021-10-21 20:01:00,184 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 113 transitions. [2021-10-21 20:01:00,184 INFO L704 BuchiCegarLoop]: Abstraction has 78 states and 113 transitions. [2021-10-21 20:01:00,184 INFO L587 BuchiCegarLoop]: Abstraction has 78 states and 113 transitions. [2021-10-21 20:01:00,184 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2021-10-21 20:01:00,185 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 78 states and 113 transitions. [2021-10-21 20:01:00,186 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 39 [2021-10-21 20:01:00,186 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-21 20:01:00,187 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-21 20:01:00,187 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 20:01:00,187 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 20:01:00,188 INFO L791 eck$LassoCheckResult]: Stem: 351#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string0.base, #t~string0.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string0.base, #t~string0.offset, 1);call write~init~int(0, #t~string0.base, 1 + #t~string0.offset, 1);call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(15); 341#L-1 havoc main_#res;havoc main_#t~nondet3, main_#t~ret4, main_~a~0, main_~b~0, main_~r~1;havoc main_~a~0;havoc main_~b~0;havoc main_~r~1;main_~b~0 := main_#t~nondet3;havoc main_#t~nondet3;main_~a~0 := 234770789;mp_add_#in~a, mp_add_#in~b := main_~a~0, main_~b~0;havoc mp_add_#res;havoc mp_add_~a, mp_add_~b, mp_add_~a0~0, mp_add_~a1~0, mp_add_~a2~0, mp_add_~a3~0, mp_add_~b0~0, mp_add_~b1~0, mp_add_~b2~0, mp_add_~b3~0, mp_add_~r0~0, mp_add_~r1~0, mp_add_~r2~0, mp_add_~r3~0, mp_add_~carry~0, mp_add_~partial_sum~0, mp_add_~r~0, mp_add_~i~0, mp_add_~na~0, mp_add_~nb~0;mp_add_~a := mp_add_#in~a;mp_add_~b := mp_add_#in~b;havoc mp_add_~a0~0;havoc mp_add_~a1~0;havoc mp_add_~a2~0;havoc mp_add_~a3~0;havoc mp_add_~b0~0;havoc mp_add_~b1~0;havoc mp_add_~b2~0;havoc mp_add_~b3~0;havoc mp_add_~r0~0;havoc mp_add_~r1~0;havoc mp_add_~r2~0;havoc mp_add_~r3~0;havoc mp_add_~carry~0;havoc mp_add_~partial_sum~0;havoc mp_add_~r~0;havoc mp_add_~i~0;havoc mp_add_~na~0;havoc mp_add_~nb~0;mp_add_~a0~0 := mp_add_~a;mp_add_~a1~0 := mp_add_~a / 256;mp_add_~a2~0 := mp_add_~a / 65536;mp_add_~a3~0 := mp_add_~a / 16777216;mp_add_~b0~0 := mp_add_~b;mp_add_~b1~0 := mp_add_~b / 256;mp_add_~b2~0 := mp_add_~b / 65536;mp_add_~b3~0 := mp_add_~b / 16777216;mp_add_~na~0 := 4; 332#L51 assume 0 == mp_add_~a3~0 % 256;mp_add_~na~0 := mp_add_~na~0 % 256 - 1; 334#L53 assume !(0 == mp_add_~a2~0 % 256); 368#L51-1 mp_add_~nb~0 := 4; 335#L61 assume !(0 == mp_add_~b3~0 % 256); 336#L61-1 mp_add_~carry~0 := 0;mp_add_~i~0 := 0; 378#L72-2 assume !!((mp_add_~i~0 % 256 < mp_add_~na~0 % 256 || mp_add_~i~0 % 256 < mp_add_~nb~0 % 256) || 0 != mp_add_~carry~0 % 65536);mp_add_~partial_sum~0 := mp_add_~carry~0;mp_add_~carry~0 := 0; 379#L75 assume !(mp_add_~i~0 % 256 < mp_add_~na~0 % 256); 400#L75-1 [2021-10-21 20:01:00,188 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 [2021-10-21 20:01:00,188 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:01:00,188 INFO L82 PathProgramCache]: Analyzing trace with hash -384676570, now seen corresponding path program 1 times [2021-10-21 20:01:00,189 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:01:00,189 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1085055842] [2021-10-21 20:01:00,189 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:01:00,189 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:01:00,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:01:00,238 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 20:01:00,239 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 20:01:00,239 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1085055842] [2021-10-21 20:01:00,239 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1085055842] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-21 20:01:00,239 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-21 20:01:00,240 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-21 20:01:00,240 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [702331442] [2021-10-21 20:01:00,240 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-10-21 20:01:00,241 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:01:00,241 INFO L82 PathProgramCache]: Analyzing trace with hash 1939143242, now seen corresponding path program 2 times [2021-10-21 20:01:00,241 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:01:00,241 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1675694623] [2021-10-21 20:01:00,241 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:01:00,242 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:01:00,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:01:00,372 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 20:01:00,372 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 20:01:00,372 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1675694623] [2021-10-21 20:01:00,373 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1675694623] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-21 20:01:00,373 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-21 20:01:00,373 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-21 20:01:00,373 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1959160405] [2021-10-21 20:01:00,374 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-10-21 20:01:00,374 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 20:01:00,374 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-21 20:01:00,375 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-21 20:01:00,375 INFO L87 Difference]: Start difference. First operand 78 states and 113 transitions. cyclomatic complexity: 37 Second operand has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:01:00,380 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 20:01:00,381 INFO L93 Difference]: Finished difference Result 66 states and 93 transitions. [2021-10-21 20:01:00,381 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-21 20:01:00,381 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 66 states and 93 transitions. [2021-10-21 20:01:00,383 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 39 [2021-10-21 20:01:00,384 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 66 states to 66 states and 93 transitions. [2021-10-21 20:01:00,384 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 66 [2021-10-21 20:01:00,384 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 66 [2021-10-21 20:01:00,385 INFO L73 IsDeterministic]: Start isDeterministic. Operand 66 states and 93 transitions. [2021-10-21 20:01:00,385 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-21 20:01:00,385 INFO L681 BuchiCegarLoop]: Abstraction has 66 states and 93 transitions. [2021-10-21 20:01:00,386 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states and 93 transitions. [2021-10-21 20:01:00,389 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 66. [2021-10-21 20:01:00,390 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 66 states, 66 states have (on average 1.4090909090909092) internal successors, (93), 65 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:01:00,391 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 93 transitions. [2021-10-21 20:01:00,391 INFO L704 BuchiCegarLoop]: Abstraction has 66 states and 93 transitions. [2021-10-21 20:01:00,391 INFO L587 BuchiCegarLoop]: Abstraction has 66 states and 93 transitions. [2021-10-21 20:01:00,391 INFO L425 BuchiCegarLoop]: ======== Iteration 4============ [2021-10-21 20:01:00,392 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 66 states and 93 transitions. [2021-10-21 20:01:00,393 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 39 [2021-10-21 20:01:00,393 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-21 20:01:00,393 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-21 20:01:00,394 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 20:01:00,394 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 20:01:00,394 INFO L791 eck$LassoCheckResult]: Stem: 500#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string0.base, #t~string0.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string0.base, #t~string0.offset, 1);call write~init~int(0, #t~string0.base, 1 + #t~string0.offset, 1);call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(15); 490#L-1 havoc main_#res;havoc main_#t~nondet3, main_#t~ret4, main_~a~0, main_~b~0, main_~r~1;havoc main_~a~0;havoc main_~b~0;havoc main_~r~1;main_~b~0 := main_#t~nondet3;havoc main_#t~nondet3;main_~a~0 := 234770789;mp_add_#in~a, mp_add_#in~b := main_~a~0, main_~b~0;havoc mp_add_#res;havoc mp_add_~a, mp_add_~b, mp_add_~a0~0, mp_add_~a1~0, mp_add_~a2~0, mp_add_~a3~0, mp_add_~b0~0, mp_add_~b1~0, mp_add_~b2~0, mp_add_~b3~0, mp_add_~r0~0, mp_add_~r1~0, mp_add_~r2~0, mp_add_~r3~0, mp_add_~carry~0, mp_add_~partial_sum~0, mp_add_~r~0, mp_add_~i~0, mp_add_~na~0, mp_add_~nb~0;mp_add_~a := mp_add_#in~a;mp_add_~b := mp_add_#in~b;havoc mp_add_~a0~0;havoc mp_add_~a1~0;havoc mp_add_~a2~0;havoc mp_add_~a3~0;havoc mp_add_~b0~0;havoc mp_add_~b1~0;havoc mp_add_~b2~0;havoc mp_add_~b3~0;havoc mp_add_~r0~0;havoc mp_add_~r1~0;havoc mp_add_~r2~0;havoc mp_add_~r3~0;havoc mp_add_~carry~0;havoc mp_add_~partial_sum~0;havoc mp_add_~r~0;havoc mp_add_~i~0;havoc mp_add_~na~0;havoc mp_add_~nb~0;mp_add_~a0~0 := mp_add_~a;mp_add_~a1~0 := mp_add_~a / 256;mp_add_~a2~0 := mp_add_~a / 65536;mp_add_~a3~0 := mp_add_~a / 16777216;mp_add_~b0~0 := mp_add_~b;mp_add_~b1~0 := mp_add_~b / 256;mp_add_~b2~0 := mp_add_~b / 65536;mp_add_~b3~0 := mp_add_~b / 16777216;mp_add_~na~0 := 4; 481#L51 assume !(0 == mp_add_~a3~0 % 256); 482#L51-1 mp_add_~nb~0 := 4; 483#L61 assume !(0 == mp_add_~b3~0 % 256); 484#L61-1 mp_add_~carry~0 := 0;mp_add_~i~0 := 0; 497#L72-2 assume !!((mp_add_~i~0 % 256 < mp_add_~na~0 % 256 || mp_add_~i~0 % 256 < mp_add_~nb~0 % 256) || 0 != mp_add_~carry~0 % 65536);mp_add_~partial_sum~0 := mp_add_~carry~0;mp_add_~carry~0 := 0; 545#L75 assume mp_add_~i~0 % 256 < mp_add_~na~0 % 256; 544#L76 assume 0 == mp_add_~i~0 % 256;mp_add_~partial_sum~0 := mp_add_~partial_sum~0 % 65536 + mp_add_~a0~0 % 256; 543#L76-2 assume !(1 == mp_add_~i~0 % 256); 541#L77-1 assume !(2 == mp_add_~i~0 % 256); 538#L78-1 assume !(3 == mp_add_~i~0 % 256); 533#L75-1 assume !(mp_add_~i~0 % 256 < mp_add_~nb~0 % 256); 531#L81 assume mp_add_~partial_sum~0 % 65536 > 255;mp_add_~partial_sum~0 := ~bitwiseAnd(mp_add_~partial_sum~0 % 65536, 255);mp_add_~carry~0 := 1; 493#L87-1 [2021-10-21 20:01:00,395 INFO L793 eck$LassoCheckResult]: Loop: 493#L87-1 assume 0 == mp_add_~i~0 % 256;mp_add_~r0~0 := mp_add_~partial_sum~0; 487#L91-1 assume !(1 == mp_add_~i~0 % 256); 488#L92-1 assume !(2 == mp_add_~i~0 % 256); 489#L93-1 assume !(3 == mp_add_~i~0 % 256); 498#L94-1 mp_add_~i~0 := 1 + mp_add_~i~0 % 256; 522#L72-2 assume !!((mp_add_~i~0 % 256 < mp_add_~na~0 % 256 || mp_add_~i~0 % 256 < mp_add_~nb~0 % 256) || 0 != mp_add_~carry~0 % 65536);mp_add_~partial_sum~0 := mp_add_~carry~0;mp_add_~carry~0 := 0; 523#L75 assume mp_add_~i~0 % 256 < mp_add_~na~0 % 256; 514#L76 assume 0 == mp_add_~i~0 % 256;mp_add_~partial_sum~0 := mp_add_~partial_sum~0 % 65536 + mp_add_~a0~0 % 256; 517#L76-2 assume !(1 == mp_add_~i~0 % 256); 540#L77-1 assume !(2 == mp_add_~i~0 % 256); 537#L78-1 assume !(3 == mp_add_~i~0 % 256); 536#L75-1 assume !(mp_add_~i~0 % 256 < mp_add_~nb~0 % 256); 532#L81 assume mp_add_~partial_sum~0 % 65536 > 255;mp_add_~partial_sum~0 := ~bitwiseAnd(mp_add_~partial_sum~0 % 65536, 255);mp_add_~carry~0 := 1; 493#L87-1 [2021-10-21 20:01:00,395 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:01:00,395 INFO L82 PathProgramCache]: Analyzing trace with hash 1874592092, now seen corresponding path program 1 times [2021-10-21 20:01:00,395 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:01:00,396 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [593936880] [2021-10-21 20:01:00,396 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:01:00,396 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:01:00,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:01:00,511 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 20:01:00,511 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 20:01:00,512 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [593936880] [2021-10-21 20:01:00,512 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [593936880] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-21 20:01:00,512 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-21 20:01:00,512 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-21 20:01:00,512 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [564652123] [2021-10-21 20:01:00,513 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-10-21 20:01:00,513 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:01:00,513 INFO L82 PathProgramCache]: Analyzing trace with hash 686981138, now seen corresponding path program 3 times [2021-10-21 20:01:00,514 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:01:00,514 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1818813192] [2021-10-21 20:01:00,514 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:01:00,514 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:01:00,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:01:00,584 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 20:01:00,584 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 20:01:00,584 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1818813192] [2021-10-21 20:01:00,584 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1818813192] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-21 20:01:00,584 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-21 20:01:00,585 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-21 20:01:00,585 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [167020259] [2021-10-21 20:01:00,585 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-10-21 20:01:00,585 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 20:01:00,586 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-21 20:01:00,586 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-21 20:01:00,587 INFO L87 Difference]: Start difference. First operand 66 states and 93 transitions. cyclomatic complexity: 29 Second operand has 4 states, 4 states have (on average 3.25) internal successors, (13), 3 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:01:00,794 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 20:01:00,794 INFO L93 Difference]: Finished difference Result 91 states and 134 transitions. [2021-10-21 20:01:00,796 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-21 20:01:00,796 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 91 states and 134 transitions. [2021-10-21 20:01:00,798 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 64 [2021-10-21 20:01:00,799 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 91 states to 91 states and 134 transitions. [2021-10-21 20:01:00,799 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 91 [2021-10-21 20:01:00,799 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 91 [2021-10-21 20:01:00,800 INFO L73 IsDeterministic]: Start isDeterministic. Operand 91 states and 134 transitions. [2021-10-21 20:01:00,800 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-21 20:01:00,800 INFO L681 BuchiCegarLoop]: Abstraction has 91 states and 134 transitions. [2021-10-21 20:01:00,801 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 91 states and 134 transitions. [2021-10-21 20:01:00,808 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 91 to 83. [2021-10-21 20:01:00,808 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 83 states, 83 states have (on average 1.4457831325301205) internal successors, (120), 82 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:01:00,809 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83 states to 83 states and 120 transitions. [2021-10-21 20:01:00,809 INFO L704 BuchiCegarLoop]: Abstraction has 83 states and 120 transitions. [2021-10-21 20:01:00,810 INFO L587 BuchiCegarLoop]: Abstraction has 83 states and 120 transitions. [2021-10-21 20:01:00,810 INFO L425 BuchiCegarLoop]: ======== Iteration 5============ [2021-10-21 20:01:00,810 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 83 states and 120 transitions. [2021-10-21 20:01:00,811 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 56 [2021-10-21 20:01:00,811 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-21 20:01:00,811 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-21 20:01:00,812 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 20:01:00,812 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 20:01:00,812 INFO L791 eck$LassoCheckResult]: Stem: 667#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string0.base, #t~string0.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string0.base, #t~string0.offset, 1);call write~init~int(0, #t~string0.base, 1 + #t~string0.offset, 1);call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(15); 656#L-1 havoc main_#res;havoc main_#t~nondet3, main_#t~ret4, main_~a~0, main_~b~0, main_~r~1;havoc main_~a~0;havoc main_~b~0;havoc main_~r~1;main_~b~0 := main_#t~nondet3;havoc main_#t~nondet3;main_~a~0 := 234770789;mp_add_#in~a, mp_add_#in~b := main_~a~0, main_~b~0;havoc mp_add_#res;havoc mp_add_~a, mp_add_~b, mp_add_~a0~0, mp_add_~a1~0, mp_add_~a2~0, mp_add_~a3~0, mp_add_~b0~0, mp_add_~b1~0, mp_add_~b2~0, mp_add_~b3~0, mp_add_~r0~0, mp_add_~r1~0, mp_add_~r2~0, mp_add_~r3~0, mp_add_~carry~0, mp_add_~partial_sum~0, mp_add_~r~0, mp_add_~i~0, mp_add_~na~0, mp_add_~nb~0;mp_add_~a := mp_add_#in~a;mp_add_~b := mp_add_#in~b;havoc mp_add_~a0~0;havoc mp_add_~a1~0;havoc mp_add_~a2~0;havoc mp_add_~a3~0;havoc mp_add_~b0~0;havoc mp_add_~b1~0;havoc mp_add_~b2~0;havoc mp_add_~b3~0;havoc mp_add_~r0~0;havoc mp_add_~r1~0;havoc mp_add_~r2~0;havoc mp_add_~r3~0;havoc mp_add_~carry~0;havoc mp_add_~partial_sum~0;havoc mp_add_~r~0;havoc mp_add_~i~0;havoc mp_add_~na~0;havoc mp_add_~nb~0;mp_add_~a0~0 := mp_add_~a;mp_add_~a1~0 := mp_add_~a / 256;mp_add_~a2~0 := mp_add_~a / 65536;mp_add_~a3~0 := mp_add_~a / 16777216;mp_add_~b0~0 := mp_add_~b;mp_add_~b1~0 := mp_add_~b / 256;mp_add_~b2~0 := mp_add_~b / 65536;mp_add_~b3~0 := mp_add_~b / 16777216;mp_add_~na~0 := 4; 649#L51 assume !(0 == mp_add_~a3~0 % 256); 650#L51-1 mp_add_~nb~0 := 4; 651#L61 assume !(0 == mp_add_~b3~0 % 256); 652#L61-1 mp_add_~carry~0 := 0;mp_add_~i~0 := 0; 663#L72-2 assume !!((mp_add_~i~0 % 256 < mp_add_~na~0 % 256 || mp_add_~i~0 % 256 < mp_add_~nb~0 % 256) || 0 != mp_add_~carry~0 % 65536);mp_add_~partial_sum~0 := mp_add_~carry~0;mp_add_~carry~0 := 0; 711#L75 assume mp_add_~i~0 % 256 < mp_add_~na~0 % 256; 710#L76 assume 0 == mp_add_~i~0 % 256;mp_add_~partial_sum~0 := mp_add_~partial_sum~0 % 65536 + mp_add_~a0~0 % 256; 709#L76-2 assume !(1 == mp_add_~i~0 % 256); 708#L77-1 assume !(2 == mp_add_~i~0 % 256); 706#L78-1 assume !(3 == mp_add_~i~0 % 256); 703#L75-1 assume !(mp_add_~i~0 % 256 < mp_add_~nb~0 % 256); 701#L81 assume mp_add_~partial_sum~0 % 65536 > 255;mp_add_~partial_sum~0 := ~bitwiseAnd(mp_add_~partial_sum~0 % 65536, 255);mp_add_~carry~0 := 1; 697#L87-1 [2021-10-21 20:01:00,813 INFO L793 eck$LassoCheckResult]: Loop: 697#L87-1 assume 0 == mp_add_~i~0 % 256;mp_add_~r0~0 := mp_add_~partial_sum~0; 696#L91-1 assume !(1 == mp_add_~i~0 % 256); 694#L92-1 assume !(2 == mp_add_~i~0 % 256); 691#L93-1 assume !(3 == mp_add_~i~0 % 256); 692#L94-1 mp_add_~i~0 := 1 + mp_add_~i~0 % 256; 687#L72-2 assume !!((mp_add_~i~0 % 256 < mp_add_~na~0 % 256 || mp_add_~i~0 % 256 < mp_add_~nb~0 % 256) || 0 != mp_add_~carry~0 % 65536);mp_add_~partial_sum~0 := mp_add_~carry~0;mp_add_~carry~0 := 0; 688#L75 assume !(mp_add_~i~0 % 256 < mp_add_~na~0 % 256); 677#L75-1 assume !(mp_add_~i~0 % 256 < mp_add_~nb~0 % 256); 674#L81 assume mp_add_~partial_sum~0 % 65536 > 255;mp_add_~partial_sum~0 := ~bitwiseAnd(mp_add_~partial_sum~0 % 65536, 255);mp_add_~carry~0 := 1; 659#L87-1 assume !(0 == mp_add_~i~0 % 256); 655#L91-1 assume 1 == mp_add_~i~0 % 256;mp_add_~r1~0 := mp_add_~partial_sum~0; 647#L92-1 assume 2 == mp_add_~i~0 % 256;mp_add_~r2~0 := mp_add_~partial_sum~0; 648#L93-1 assume 3 == mp_add_~i~0 % 256;mp_add_~r3~0 := mp_add_~partial_sum~0; 689#L94-1 mp_add_~i~0 := 1 + mp_add_~i~0 % 256; 690#L72-2 assume !!((mp_add_~i~0 % 256 < mp_add_~na~0 % 256 || mp_add_~i~0 % 256 < mp_add_~nb~0 % 256) || 0 != mp_add_~carry~0 % 65536);mp_add_~partial_sum~0 := mp_add_~carry~0;mp_add_~carry~0 := 0; 695#L75 assume !(mp_add_~i~0 % 256 < mp_add_~na~0 % 256); 715#L75-1 assume mp_add_~i~0 % 256 < mp_add_~nb~0 % 256; 716#L82 assume 0 == mp_add_~i~0 % 256;mp_add_~partial_sum~0 := mp_add_~partial_sum~0 % 65536 + mp_add_~b0~0 % 256; 676#L82-2 assume !(1 == mp_add_~i~0 % 256); 682#L83-1 assume !(2 == mp_add_~i~0 % 256); 684#L84-1 assume !(3 == mp_add_~i~0 % 256); 719#L81 assume mp_add_~partial_sum~0 % 65536 > 255;mp_add_~partial_sum~0 := ~bitwiseAnd(mp_add_~partial_sum~0 % 65536, 255);mp_add_~carry~0 := 1; 697#L87-1 [2021-10-21 20:01:00,813 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:01:00,813 INFO L82 PathProgramCache]: Analyzing trace with hash 1874592092, now seen corresponding path program 2 times [2021-10-21 20:01:00,814 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:01:00,814 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1881650141] [2021-10-21 20:01:00,814 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:01:00,814 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:01:00,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:01:01,005 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 20:01:01,006 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 20:01:01,006 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1881650141] [2021-10-21 20:01:01,006 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1881650141] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-21 20:01:01,006 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-21 20:01:01,006 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-21 20:01:01,007 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [809774659] [2021-10-21 20:01:01,007 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-10-21 20:01:01,007 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:01:01,007 INFO L82 PathProgramCache]: Analyzing trace with hash -1043280079, now seen corresponding path program 1 times [2021-10-21 20:01:01,008 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:01:01,008 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1834358300] [2021-10-21 20:01:01,008 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:01:01,008 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:01:01,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:01:01,046 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-10-21 20:01:01,047 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 20:01:01,047 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1834358300] [2021-10-21 20:01:01,047 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1834358300] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-21 20:01:01,047 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-21 20:01:01,047 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-21 20:01:01,048 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1492306796] [2021-10-21 20:01:01,048 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-10-21 20:01:01,048 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 20:01:01,049 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-21 20:01:01,049 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-21 20:01:01,049 INFO L87 Difference]: Start difference. First operand 83 states and 120 transitions. cyclomatic complexity: 39 Second operand has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:01:01,258 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 20:01:01,258 INFO L93 Difference]: Finished difference Result 164 states and 234 transitions. [2021-10-21 20:01:01,259 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-21 20:01:01,259 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 164 states and 234 transitions. [2021-10-21 20:01:01,261 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 112 [2021-10-21 20:01:01,263 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 164 states to 164 states and 234 transitions. [2021-10-21 20:01:01,263 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 164 [2021-10-21 20:01:01,264 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 164 [2021-10-21 20:01:01,264 INFO L73 IsDeterministic]: Start isDeterministic. Operand 164 states and 234 transitions. [2021-10-21 20:01:01,265 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-21 20:01:01,265 INFO L681 BuchiCegarLoop]: Abstraction has 164 states and 234 transitions. [2021-10-21 20:01:01,265 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 164 states and 234 transitions. [2021-10-21 20:01:01,270 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 164 to 91. [2021-10-21 20:01:01,271 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 91 states, 91 states have (on average 1.4065934065934067) internal successors, (128), 90 states have internal predecessors, (128), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:01:01,272 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 91 states and 128 transitions. [2021-10-21 20:01:01,272 INFO L704 BuchiCegarLoop]: Abstraction has 91 states and 128 transitions. [2021-10-21 20:01:01,272 INFO L587 BuchiCegarLoop]: Abstraction has 91 states and 128 transitions. [2021-10-21 20:01:01,272 INFO L425 BuchiCegarLoop]: ======== Iteration 6============ [2021-10-21 20:01:01,273 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 91 states and 128 transitions. [2021-10-21 20:01:01,274 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 56 [2021-10-21 20:01:01,274 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-21 20:01:01,274 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-21 20:01:01,275 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 20:01:01,275 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 20:01:01,275 INFO L791 eck$LassoCheckResult]: Stem: 927#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string0.base, #t~string0.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string0.base, #t~string0.offset, 1);call write~init~int(0, #t~string0.base, 1 + #t~string0.offset, 1);call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(15); 917#L-1 havoc main_#res;havoc main_#t~nondet3, main_#t~ret4, main_~a~0, main_~b~0, main_~r~1;havoc main_~a~0;havoc main_~b~0;havoc main_~r~1;main_~b~0 := main_#t~nondet3;havoc main_#t~nondet3;main_~a~0 := 234770789;mp_add_#in~a, mp_add_#in~b := main_~a~0, main_~b~0;havoc mp_add_#res;havoc mp_add_~a, mp_add_~b, mp_add_~a0~0, mp_add_~a1~0, mp_add_~a2~0, mp_add_~a3~0, mp_add_~b0~0, mp_add_~b1~0, mp_add_~b2~0, mp_add_~b3~0, mp_add_~r0~0, mp_add_~r1~0, mp_add_~r2~0, mp_add_~r3~0, mp_add_~carry~0, mp_add_~partial_sum~0, mp_add_~r~0, mp_add_~i~0, mp_add_~na~0, mp_add_~nb~0;mp_add_~a := mp_add_#in~a;mp_add_~b := mp_add_#in~b;havoc mp_add_~a0~0;havoc mp_add_~a1~0;havoc mp_add_~a2~0;havoc mp_add_~a3~0;havoc mp_add_~b0~0;havoc mp_add_~b1~0;havoc mp_add_~b2~0;havoc mp_add_~b3~0;havoc mp_add_~r0~0;havoc mp_add_~r1~0;havoc mp_add_~r2~0;havoc mp_add_~r3~0;havoc mp_add_~carry~0;havoc mp_add_~partial_sum~0;havoc mp_add_~r~0;havoc mp_add_~i~0;havoc mp_add_~na~0;havoc mp_add_~nb~0;mp_add_~a0~0 := mp_add_~a;mp_add_~a1~0 := mp_add_~a / 256;mp_add_~a2~0 := mp_add_~a / 65536;mp_add_~a3~0 := mp_add_~a / 16777216;mp_add_~b0~0 := mp_add_~b;mp_add_~b1~0 := mp_add_~b / 256;mp_add_~b2~0 := mp_add_~b / 65536;mp_add_~b3~0 := mp_add_~b / 16777216;mp_add_~na~0 := 4; 908#L51 assume !(0 == mp_add_~a3~0 % 256); 909#L51-1 mp_add_~nb~0 := 4; 910#L61 assume 0 == mp_add_~b3~0 % 256;mp_add_~nb~0 := mp_add_~nb~0 % 256 - 1; 912#L63 assume !(0 == mp_add_~b2~0 % 256); 913#L61-1 mp_add_~carry~0 := 0;mp_add_~i~0 := 0; 970#L72-2 assume !!((mp_add_~i~0 % 256 < mp_add_~na~0 % 256 || mp_add_~i~0 % 256 < mp_add_~nb~0 % 256) || 0 != mp_add_~carry~0 % 65536);mp_add_~partial_sum~0 := mp_add_~carry~0;mp_add_~carry~0 := 0; 969#L75 assume mp_add_~i~0 % 256 < mp_add_~na~0 % 256; 968#L76 assume 0 == mp_add_~i~0 % 256;mp_add_~partial_sum~0 := mp_add_~partial_sum~0 % 65536 + mp_add_~a0~0 % 256; 967#L76-2 assume !(1 == mp_add_~i~0 % 256); 966#L77-1 assume !(2 == mp_add_~i~0 % 256); 965#L78-1 assume !(3 == mp_add_~i~0 % 256); 963#L75-1 assume !(mp_add_~i~0 % 256 < mp_add_~nb~0 % 256); 960#L81 assume mp_add_~partial_sum~0 % 65536 > 255;mp_add_~partial_sum~0 := ~bitwiseAnd(mp_add_~partial_sum~0 % 65536, 255);mp_add_~carry~0 := 1; 961#L87-1 [2021-10-21 20:01:01,276 INFO L793 eck$LassoCheckResult]: Loop: 961#L87-1 assume 0 == mp_add_~i~0 % 256;mp_add_~r0~0 := mp_add_~partial_sum~0; 904#L91-1 assume !(1 == mp_add_~i~0 % 256); 905#L92-1 assume !(2 == mp_add_~i~0 % 256); 955#L93-1 assume !(3 == mp_add_~i~0 % 256); 954#L94-1 mp_add_~i~0 := 1 + mp_add_~i~0 % 256; 950#L72-2 assume !!((mp_add_~i~0 % 256 < mp_add_~na~0 % 256 || mp_add_~i~0 % 256 < mp_add_~nb~0 % 256) || 0 != mp_add_~carry~0 % 65536);mp_add_~partial_sum~0 := mp_add_~carry~0;mp_add_~carry~0 := 0; 951#L75 assume !(mp_add_~i~0 % 256 < mp_add_~na~0 % 256); 943#L75-1 assume !(mp_add_~i~0 % 256 < mp_add_~nb~0 % 256); 934#L81 assume mp_add_~partial_sum~0 % 65536 > 255;mp_add_~partial_sum~0 := ~bitwiseAnd(mp_add_~partial_sum~0 % 65536, 255);mp_add_~carry~0 := 1; 918#L87-1 assume !(0 == mp_add_~i~0 % 256); 919#L91-1 assume 1 == mp_add_~i~0 % 256;mp_add_~r1~0 := mp_add_~partial_sum~0; 906#L92-1 assume 2 == mp_add_~i~0 % 256;mp_add_~r2~0 := mp_add_~partial_sum~0; 907#L93-1 assume 3 == mp_add_~i~0 % 256;mp_add_~r3~0 := mp_add_~partial_sum~0; 924#L94-1 mp_add_~i~0 := 1 + mp_add_~i~0 % 256; 952#L72-2 assume !!((mp_add_~i~0 % 256 < mp_add_~na~0 % 256 || mp_add_~i~0 % 256 < mp_add_~nb~0 % 256) || 0 != mp_add_~carry~0 % 65536);mp_add_~partial_sum~0 := mp_add_~carry~0;mp_add_~carry~0 := 0; 953#L75 assume !(mp_add_~i~0 % 256 < mp_add_~na~0 % 256); 982#L75-1 assume mp_add_~i~0 % 256 < mp_add_~nb~0 % 256; 983#L82 assume 0 == mp_add_~i~0 % 256;mp_add_~partial_sum~0 := mp_add_~partial_sum~0 % 65536 + mp_add_~b0~0 % 256; 938#L82-2 assume !(1 == mp_add_~i~0 % 256); 941#L83-1 assume !(2 == mp_add_~i~0 % 256); 991#L84-1 assume !(3 == mp_add_~i~0 % 256); 990#L81 assume mp_add_~partial_sum~0 % 65536 > 255;mp_add_~partial_sum~0 := ~bitwiseAnd(mp_add_~partial_sum~0 % 65536, 255);mp_add_~carry~0 := 1; 961#L87-1 [2021-10-21 20:01:01,276 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:01:01,276 INFO L82 PathProgramCache]: Analyzing trace with hash -2095675795, now seen corresponding path program 1 times [2021-10-21 20:01:01,277 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:01:01,277 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [468193432] [2021-10-21 20:01:01,277 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:01:01,277 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:01:01,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:01:01,392 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 20:01:01,393 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 20:01:01,393 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [468193432] [2021-10-21 20:01:01,393 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [468193432] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-21 20:01:01,393 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-21 20:01:01,393 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-21 20:01:01,395 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1560670956] [2021-10-21 20:01:01,397 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-10-21 20:01:01,397 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:01:01,398 INFO L82 PathProgramCache]: Analyzing trace with hash -1043280079, now seen corresponding path program 2 times [2021-10-21 20:01:01,398 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:01:01,398 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1317167302] [2021-10-21 20:01:01,398 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:01:01,398 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:01:01,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:01:01,431 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-10-21 20:01:01,431 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 20:01:01,432 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1317167302] [2021-10-21 20:01:01,433 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1317167302] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-21 20:01:01,433 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-21 20:01:01,433 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-21 20:01:01,433 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1858370271] [2021-10-21 20:01:01,434 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-10-21 20:01:01,434 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 20:01:01,434 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-21 20:01:01,439 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-21 20:01:01,441 INFO L87 Difference]: Start difference. First operand 91 states and 128 transitions. cyclomatic complexity: 39 Second operand has 5 states, 5 states have (on average 3.0) internal successors, (15), 5 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:01:01,886 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 20:01:01,886 INFO L93 Difference]: Finished difference Result 245 states and 348 transitions. [2021-10-21 20:01:01,887 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-21 20:01:01,887 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 245 states and 348 transitions. [2021-10-21 20:01:01,890 INFO L131 ngComponentsAnalysis]: Automaton has 6 accepting balls. 168 [2021-10-21 20:01:01,892 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 245 states to 245 states and 348 transitions. [2021-10-21 20:01:01,893 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 245 [2021-10-21 20:01:01,893 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 245 [2021-10-21 20:01:01,893 INFO L73 IsDeterministic]: Start isDeterministic. Operand 245 states and 348 transitions. [2021-10-21 20:01:01,895 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-21 20:01:01,895 INFO L681 BuchiCegarLoop]: Abstraction has 245 states and 348 transitions. [2021-10-21 20:01:01,895 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 245 states and 348 transitions. [2021-10-21 20:01:01,900 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 245 to 91. [2021-10-21 20:01:01,900 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 91 states, 91 states have (on average 1.4065934065934067) internal successors, (128), 90 states have internal predecessors, (128), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:01:01,901 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 91 states and 128 transitions. [2021-10-21 20:01:01,901 INFO L704 BuchiCegarLoop]: Abstraction has 91 states and 128 transitions. [2021-10-21 20:01:01,902 INFO L587 BuchiCegarLoop]: Abstraction has 91 states and 128 transitions. [2021-10-21 20:01:01,902 INFO L425 BuchiCegarLoop]: ======== Iteration 7============ [2021-10-21 20:01:01,902 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 91 states and 128 transitions. [2021-10-21 20:01:01,903 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 56 [2021-10-21 20:01:01,903 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-21 20:01:01,903 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-21 20:01:01,904 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 20:01:01,904 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 20:01:01,904 INFO L791 eck$LassoCheckResult]: Stem: 1273#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string0.base, #t~string0.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string0.base, #t~string0.offset, 1);call write~init~int(0, #t~string0.base, 1 + #t~string0.offset, 1);call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(15); 1264#L-1 havoc main_#res;havoc main_#t~nondet3, main_#t~ret4, main_~a~0, main_~b~0, main_~r~1;havoc main_~a~0;havoc main_~b~0;havoc main_~r~1;main_~b~0 := main_#t~nondet3;havoc main_#t~nondet3;main_~a~0 := 234770789;mp_add_#in~a, mp_add_#in~b := main_~a~0, main_~b~0;havoc mp_add_#res;havoc mp_add_~a, mp_add_~b, mp_add_~a0~0, mp_add_~a1~0, mp_add_~a2~0, mp_add_~a3~0, mp_add_~b0~0, mp_add_~b1~0, mp_add_~b2~0, mp_add_~b3~0, mp_add_~r0~0, mp_add_~r1~0, mp_add_~r2~0, mp_add_~r3~0, mp_add_~carry~0, mp_add_~partial_sum~0, mp_add_~r~0, mp_add_~i~0, mp_add_~na~0, mp_add_~nb~0;mp_add_~a := mp_add_#in~a;mp_add_~b := mp_add_#in~b;havoc mp_add_~a0~0;havoc mp_add_~a1~0;havoc mp_add_~a2~0;havoc mp_add_~a3~0;havoc mp_add_~b0~0;havoc mp_add_~b1~0;havoc mp_add_~b2~0;havoc mp_add_~b3~0;havoc mp_add_~r0~0;havoc mp_add_~r1~0;havoc mp_add_~r2~0;havoc mp_add_~r3~0;havoc mp_add_~carry~0;havoc mp_add_~partial_sum~0;havoc mp_add_~r~0;havoc mp_add_~i~0;havoc mp_add_~na~0;havoc mp_add_~nb~0;mp_add_~a0~0 := mp_add_~a;mp_add_~a1~0 := mp_add_~a / 256;mp_add_~a2~0 := mp_add_~a / 65536;mp_add_~a3~0 := mp_add_~a / 16777216;mp_add_~b0~0 := mp_add_~b;mp_add_~b1~0 := mp_add_~b / 256;mp_add_~b2~0 := mp_add_~b / 65536;mp_add_~b3~0 := mp_add_~b / 16777216;mp_add_~na~0 := 4; 1256#L51 assume !(0 == mp_add_~a3~0 % 256); 1257#L51-1 mp_add_~nb~0 := 4; 1258#L61 assume 0 == mp_add_~b3~0 % 256;mp_add_~nb~0 := mp_add_~nb~0 % 256 - 1; 1260#L63 assume 0 == mp_add_~b2~0 % 256;mp_add_~nb~0 := mp_add_~nb~0 % 256 - 1; 1261#L65 assume 0 == mp_add_~b1~0 % 256;mp_add_~nb~0 := mp_add_~nb~0 % 256 - 1; 1295#L61-1 mp_add_~carry~0 := 0;mp_add_~i~0 := 0; 1319#L72-2 assume !!((mp_add_~i~0 % 256 < mp_add_~na~0 % 256 || mp_add_~i~0 % 256 < mp_add_~nb~0 % 256) || 0 != mp_add_~carry~0 % 65536);mp_add_~partial_sum~0 := mp_add_~carry~0;mp_add_~carry~0 := 0; 1318#L75 assume mp_add_~i~0 % 256 < mp_add_~na~0 % 256; 1317#L76 assume 0 == mp_add_~i~0 % 256;mp_add_~partial_sum~0 := mp_add_~partial_sum~0 % 65536 + mp_add_~a0~0 % 256; 1316#L76-2 assume !(1 == mp_add_~i~0 % 256); 1315#L77-1 assume !(2 == mp_add_~i~0 % 256); 1314#L78-1 assume !(3 == mp_add_~i~0 % 256); 1312#L75-1 assume !(mp_add_~i~0 % 256 < mp_add_~nb~0 % 256); 1310#L81 assume mp_add_~partial_sum~0 % 65536 > 255;mp_add_~partial_sum~0 := ~bitwiseAnd(mp_add_~partial_sum~0 % 65536, 255);mp_add_~carry~0 := 1; 1265#L87-1 [2021-10-21 20:01:01,905 INFO L793 eck$LassoCheckResult]: Loop: 1265#L87-1 assume 0 == mp_add_~i~0 % 256;mp_add_~r0~0 := mp_add_~partial_sum~0; 1253#L91-1 assume !(1 == mp_add_~i~0 % 256); 1254#L92-1 assume !(2 == mp_add_~i~0 % 256); 1255#L93-1 assume !(3 == mp_add_~i~0 % 256); 1270#L94-1 mp_add_~i~0 := 1 + mp_add_~i~0 % 256; 1299#L72-2 assume !!((mp_add_~i~0 % 256 < mp_add_~na~0 % 256 || mp_add_~i~0 % 256 < mp_add_~nb~0 % 256) || 0 != mp_add_~carry~0 % 65536);mp_add_~partial_sum~0 := mp_add_~carry~0;mp_add_~carry~0 := 0; 1300#L75 assume !(mp_add_~i~0 % 256 < mp_add_~na~0 % 256); 1334#L75-1 assume !(mp_add_~i~0 % 256 < mp_add_~nb~0 % 256); 1332#L81 assume mp_add_~partial_sum~0 % 65536 > 255;mp_add_~partial_sum~0 := ~bitwiseAnd(mp_add_~partial_sum~0 % 65536, 255);mp_add_~carry~0 := 1; 1308#L87-1 assume !(0 == mp_add_~i~0 % 256); 1306#L91-1 assume 1 == mp_add_~i~0 % 256;mp_add_~r1~0 := mp_add_~partial_sum~0; 1304#L92-1 assume 2 == mp_add_~i~0 % 256;mp_add_~r2~0 := mp_add_~partial_sum~0; 1302#L93-1 assume 3 == mp_add_~i~0 % 256;mp_add_~r3~0 := mp_add_~partial_sum~0; 1301#L94-1 mp_add_~i~0 := 1 + mp_add_~i~0 % 256; 1297#L72-2 assume !!((mp_add_~i~0 % 256 < mp_add_~na~0 % 256 || mp_add_~i~0 % 256 < mp_add_~nb~0 % 256) || 0 != mp_add_~carry~0 % 65536);mp_add_~partial_sum~0 := mp_add_~carry~0;mp_add_~carry~0 := 0; 1298#L75 assume !(mp_add_~i~0 % 256 < mp_add_~na~0 % 256); 1281#L75-1 assume mp_add_~i~0 % 256 < mp_add_~nb~0 % 256; 1330#L82 assume 0 == mp_add_~i~0 % 256;mp_add_~partial_sum~0 := mp_add_~partial_sum~0 % 65536 + mp_add_~b0~0 % 256; 1283#L82-2 assume !(1 == mp_add_~i~0 % 256); 1343#L83-1 assume !(2 == mp_add_~i~0 % 256); 1286#L84-1 assume !(3 == mp_add_~i~0 % 256); 1280#L81 assume mp_add_~partial_sum~0 % 65536 > 255;mp_add_~partial_sum~0 := ~bitwiseAnd(mp_add_~partial_sum~0 % 65536, 255);mp_add_~carry~0 := 1; 1265#L87-1 [2021-10-21 20:01:01,905 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:01:01,905 INFO L82 PathProgramCache]: Analyzing trace with hash -1829134745, now seen corresponding path program 1 times [2021-10-21 20:01:01,905 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:01:01,906 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1806426803] [2021-10-21 20:01:01,906 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:01:01,906 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:01:01,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:01:01,965 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 20:01:01,965 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 20:01:01,965 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1806426803] [2021-10-21 20:01:01,965 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1806426803] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-21 20:01:01,965 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-21 20:01:01,966 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-21 20:01:01,966 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [494595025] [2021-10-21 20:01:01,966 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-10-21 20:01:01,967 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:01:01,967 INFO L82 PathProgramCache]: Analyzing trace with hash -1043280079, now seen corresponding path program 3 times [2021-10-21 20:01:01,967 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:01:01,967 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1484526789] [2021-10-21 20:01:01,967 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:01:01,968 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:01:01,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:01:01,985 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-10-21 20:01:01,986 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 20:01:01,986 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1484526789] [2021-10-21 20:01:01,986 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1484526789] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-21 20:01:01,986 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-21 20:01:01,987 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-21 20:01:01,987 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [697325641] [2021-10-21 20:01:01,987 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-10-21 20:01:01,987 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 20:01:01,988 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-21 20:01:01,988 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-10-21 20:01:01,988 INFO L87 Difference]: Start difference. First operand 91 states and 128 transitions. cyclomatic complexity: 39 Second operand has 5 states, 4 states have (on average 4.0) internal successors, (16), 5 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:01:02,093 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 20:01:02,094 INFO L93 Difference]: Finished difference Result 219 states and 318 transitions. [2021-10-21 20:01:02,094 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-21 20:01:02,094 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 219 states and 318 transitions. [2021-10-21 20:01:02,096 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 177 [2021-10-21 20:01:02,098 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 219 states to 219 states and 318 transitions. [2021-10-21 20:01:02,099 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 219 [2021-10-21 20:01:02,099 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 219 [2021-10-21 20:01:02,099 INFO L73 IsDeterministic]: Start isDeterministic. Operand 219 states and 318 transitions. [2021-10-21 20:01:02,100 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-21 20:01:02,100 INFO L681 BuchiCegarLoop]: Abstraction has 219 states and 318 transitions. [2021-10-21 20:01:02,100 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 219 states and 318 transitions. [2021-10-21 20:01:02,105 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 219 to 149. [2021-10-21 20:01:02,106 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 149 states, 149 states have (on average 1.5033557046979866) internal successors, (224), 148 states have internal predecessors, (224), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:01:02,107 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 149 states to 149 states and 224 transitions. [2021-10-21 20:01:02,108 INFO L704 BuchiCegarLoop]: Abstraction has 149 states and 224 transitions. [2021-10-21 20:01:02,108 INFO L587 BuchiCegarLoop]: Abstraction has 149 states and 224 transitions. [2021-10-21 20:01:02,108 INFO L425 BuchiCegarLoop]: ======== Iteration 8============ [2021-10-21 20:01:02,108 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 149 states and 224 transitions. [2021-10-21 20:01:02,109 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 113 [2021-10-21 20:01:02,109 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-21 20:01:02,110 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-21 20:01:02,111 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 20:01:02,111 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 20:01:02,111 INFO L791 eck$LassoCheckResult]: Stem: 1595#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string0.base, #t~string0.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string0.base, #t~string0.offset, 1);call write~init~int(0, #t~string0.base, 1 + #t~string0.offset, 1);call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(15); 1587#L-1 havoc main_#res;havoc main_#t~nondet3, main_#t~ret4, main_~a~0, main_~b~0, main_~r~1;havoc main_~a~0;havoc main_~b~0;havoc main_~r~1;main_~b~0 := main_#t~nondet3;havoc main_#t~nondet3;main_~a~0 := 234770789;mp_add_#in~a, mp_add_#in~b := main_~a~0, main_~b~0;havoc mp_add_#res;havoc mp_add_~a, mp_add_~b, mp_add_~a0~0, mp_add_~a1~0, mp_add_~a2~0, mp_add_~a3~0, mp_add_~b0~0, mp_add_~b1~0, mp_add_~b2~0, mp_add_~b3~0, mp_add_~r0~0, mp_add_~r1~0, mp_add_~r2~0, mp_add_~r3~0, mp_add_~carry~0, mp_add_~partial_sum~0, mp_add_~r~0, mp_add_~i~0, mp_add_~na~0, mp_add_~nb~0;mp_add_~a := mp_add_#in~a;mp_add_~b := mp_add_#in~b;havoc mp_add_~a0~0;havoc mp_add_~a1~0;havoc mp_add_~a2~0;havoc mp_add_~a3~0;havoc mp_add_~b0~0;havoc mp_add_~b1~0;havoc mp_add_~b2~0;havoc mp_add_~b3~0;havoc mp_add_~r0~0;havoc mp_add_~r1~0;havoc mp_add_~r2~0;havoc mp_add_~r3~0;havoc mp_add_~carry~0;havoc mp_add_~partial_sum~0;havoc mp_add_~r~0;havoc mp_add_~i~0;havoc mp_add_~na~0;havoc mp_add_~nb~0;mp_add_~a0~0 := mp_add_~a;mp_add_~a1~0 := mp_add_~a / 256;mp_add_~a2~0 := mp_add_~a / 65536;mp_add_~a3~0 := mp_add_~a / 16777216;mp_add_~b0~0 := mp_add_~b;mp_add_~b1~0 := mp_add_~b / 256;mp_add_~b2~0 := mp_add_~b / 65536;mp_add_~b3~0 := mp_add_~b / 16777216;mp_add_~na~0 := 4; 1579#L51 assume !(0 == mp_add_~a3~0 % 256); 1580#L51-1 mp_add_~nb~0 := 4; 1581#L61 assume !(0 == mp_add_~b3~0 % 256); 1582#L61-1 mp_add_~carry~0 := 0;mp_add_~i~0 := 0; 1585#L72-2 assume !!((mp_add_~i~0 % 256 < mp_add_~na~0 % 256 || mp_add_~i~0 % 256 < mp_add_~nb~0 % 256) || 0 != mp_add_~carry~0 % 65536);mp_add_~partial_sum~0 := mp_add_~carry~0;mp_add_~carry~0 := 0; 1586#L75 assume mp_add_~i~0 % 256 < mp_add_~na~0 % 256; 1625#L76 assume 0 == mp_add_~i~0 % 256;mp_add_~partial_sum~0 := mp_add_~partial_sum~0 % 65536 + mp_add_~a0~0 % 256; 1626#L76-2 assume !(1 == mp_add_~i~0 % 256); 1653#L77-1 assume !(2 == mp_add_~i~0 % 256); 1652#L78-1 assume !(3 == mp_add_~i~0 % 256); 1651#L75-1 assume mp_add_~i~0 % 256 < mp_add_~nb~0 % 256; 1645#L82 assume 0 == mp_add_~i~0 % 256;mp_add_~partial_sum~0 := mp_add_~partial_sum~0 % 65536 + mp_add_~b0~0 % 256; 1648#L82-2 assume !(1 == mp_add_~i~0 % 256); 1646#L83-1 assume !(2 == mp_add_~i~0 % 256); 1642#L84-1 assume !(3 == mp_add_~i~0 % 256); 1643#L81 assume mp_add_~partial_sum~0 % 65536 > 255;mp_add_~partial_sum~0 := ~bitwiseAnd(mp_add_~partial_sum~0 % 65536, 255);mp_add_~carry~0 := 1; 1692#L87-1 [2021-10-21 20:01:02,111 INFO L793 eck$LassoCheckResult]: Loop: 1692#L87-1 assume 0 == mp_add_~i~0 % 256;mp_add_~r0~0 := mp_add_~partial_sum~0; 1689#L91-1 assume !(1 == mp_add_~i~0 % 256); 1688#L92-1 assume !(2 == mp_add_~i~0 % 256); 1686#L93-1 assume !(3 == mp_add_~i~0 % 256); 1682#L94-1 mp_add_~i~0 := 1 + mp_add_~i~0 % 256; 1633#L72-2 assume !!((mp_add_~i~0 % 256 < mp_add_~na~0 % 256 || mp_add_~i~0 % 256 < mp_add_~nb~0 % 256) || 0 != mp_add_~carry~0 % 65536);mp_add_~partial_sum~0 := mp_add_~carry~0;mp_add_~carry~0 := 0; 1634#L75 assume !(mp_add_~i~0 % 256 < mp_add_~na~0 % 256); 1665#L75-1 assume !(mp_add_~i~0 % 256 < mp_add_~nb~0 % 256); 1660#L81 assume mp_add_~partial_sum~0 % 65536 > 255;mp_add_~partial_sum~0 := ~bitwiseAnd(mp_add_~partial_sum~0 % 65536, 255);mp_add_~carry~0 := 1; 1661#L87-1 assume !(0 == mp_add_~i~0 % 256); 1691#L91-1 assume 1 == mp_add_~i~0 % 256;mp_add_~r1~0 := mp_add_~partial_sum~0; 1722#L92-1 assume 2 == mp_add_~i~0 % 256;mp_add_~r2~0 := mp_add_~partial_sum~0; 1721#L93-1 assume 3 == mp_add_~i~0 % 256;mp_add_~r3~0 := mp_add_~partial_sum~0; 1720#L94-1 mp_add_~i~0 := 1 + mp_add_~i~0 % 256; 1621#L72-2 assume !!((mp_add_~i~0 % 256 < mp_add_~na~0 % 256 || mp_add_~i~0 % 256 < mp_add_~nb~0 % 256) || 0 != mp_add_~carry~0 % 65536);mp_add_~partial_sum~0 := mp_add_~carry~0;mp_add_~carry~0 := 0; 1610#L75 assume mp_add_~i~0 % 256 < mp_add_~na~0 % 256; 1611#L76 assume 0 == mp_add_~i~0 % 256;mp_add_~partial_sum~0 := mp_add_~partial_sum~0 % 65536 + mp_add_~a0~0 % 256; 1717#L76-2 assume !(1 == mp_add_~i~0 % 256); 1701#L77-1 assume !(2 == mp_add_~i~0 % 256); 1700#L78-1 assume !(3 == mp_add_~i~0 % 256); 1699#L75-1 assume !(mp_add_~i~0 % 256 < mp_add_~nb~0 % 256); 1694#L81 assume mp_add_~partial_sum~0 % 65536 > 255;mp_add_~partial_sum~0 := ~bitwiseAnd(mp_add_~partial_sum~0 % 65536, 255);mp_add_~carry~0 := 1; 1692#L87-1 [2021-10-21 20:01:02,112 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:01:02,112 INFO L82 PathProgramCache]: Analyzing trace with hash 389365736, now seen corresponding path program 1 times [2021-10-21 20:01:02,112 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:01:02,112 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [591622715] [2021-10-21 20:01:02,113 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:01:02,113 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:01:02,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:01:02,134 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 20:01:02,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:01:02,161 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 20:01:02,161 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:01:02,162 INFO L82 PathProgramCache]: Analyzing trace with hash 857385497, now seen corresponding path program 1 times [2021-10-21 20:01:02,162 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:01:02,162 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1226434056] [2021-10-21 20:01:02,162 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:01:02,162 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:01:02,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:01:02,179 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-10-21 20:01:02,179 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 20:01:02,179 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1226434056] [2021-10-21 20:01:02,180 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1226434056] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-21 20:01:02,180 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-21 20:01:02,180 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-21 20:01:02,180 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1133126367] [2021-10-21 20:01:02,181 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-10-21 20:01:02,181 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 20:01:02,181 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-21 20:01:02,182 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-21 20:01:02,182 INFO L87 Difference]: Start difference. First operand 149 states and 224 transitions. cyclomatic complexity: 77 Second operand has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:01:02,274 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 20:01:02,274 INFO L93 Difference]: Finished difference Result 194 states and 283 transitions. [2021-10-21 20:01:02,274 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-21 20:01:02,275 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 194 states and 283 transitions. [2021-10-21 20:01:02,277 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 158 [2021-10-21 20:01:02,279 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 194 states to 194 states and 283 transitions. [2021-10-21 20:01:02,279 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 194 [2021-10-21 20:01:02,280 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 194 [2021-10-21 20:01:02,280 INFO L73 IsDeterministic]: Start isDeterministic. Operand 194 states and 283 transitions. [2021-10-21 20:01:02,280 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-21 20:01:02,280 INFO L681 BuchiCegarLoop]: Abstraction has 194 states and 283 transitions. [2021-10-21 20:01:02,281 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 194 states and 283 transitions. [2021-10-21 20:01:02,284 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 194 to 191. [2021-10-21 20:01:02,285 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 191 states, 191 states have (on average 1.4659685863874345) internal successors, (280), 190 states have internal predecessors, (280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:01:02,286 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 191 states to 191 states and 280 transitions. [2021-10-21 20:01:02,286 INFO L704 BuchiCegarLoop]: Abstraction has 191 states and 280 transitions. [2021-10-21 20:01:02,287 INFO L587 BuchiCegarLoop]: Abstraction has 191 states and 280 transitions. [2021-10-21 20:01:02,287 INFO L425 BuchiCegarLoop]: ======== Iteration 9============ [2021-10-21 20:01:02,287 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 191 states and 280 transitions. [2021-10-21 20:01:02,288 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 155 [2021-10-21 20:01:02,288 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-21 20:01:02,289 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-21 20:01:02,290 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 20:01:02,290 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 20:01:02,290 INFO L791 eck$LassoCheckResult]: Stem: 1946#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string0.base, #t~string0.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string0.base, #t~string0.offset, 1);call write~init~int(0, #t~string0.base, 1 + #t~string0.offset, 1);call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(15); 1935#L-1 havoc main_#res;havoc main_#t~nondet3, main_#t~ret4, main_~a~0, main_~b~0, main_~r~1;havoc main_~a~0;havoc main_~b~0;havoc main_~r~1;main_~b~0 := main_#t~nondet3;havoc main_#t~nondet3;main_~a~0 := 234770789;mp_add_#in~a, mp_add_#in~b := main_~a~0, main_~b~0;havoc mp_add_#res;havoc mp_add_~a, mp_add_~b, mp_add_~a0~0, mp_add_~a1~0, mp_add_~a2~0, mp_add_~a3~0, mp_add_~b0~0, mp_add_~b1~0, mp_add_~b2~0, mp_add_~b3~0, mp_add_~r0~0, mp_add_~r1~0, mp_add_~r2~0, mp_add_~r3~0, mp_add_~carry~0, mp_add_~partial_sum~0, mp_add_~r~0, mp_add_~i~0, mp_add_~na~0, mp_add_~nb~0;mp_add_~a := mp_add_#in~a;mp_add_~b := mp_add_#in~b;havoc mp_add_~a0~0;havoc mp_add_~a1~0;havoc mp_add_~a2~0;havoc mp_add_~a3~0;havoc mp_add_~b0~0;havoc mp_add_~b1~0;havoc mp_add_~b2~0;havoc mp_add_~b3~0;havoc mp_add_~r0~0;havoc mp_add_~r1~0;havoc mp_add_~r2~0;havoc mp_add_~r3~0;havoc mp_add_~carry~0;havoc mp_add_~partial_sum~0;havoc mp_add_~r~0;havoc mp_add_~i~0;havoc mp_add_~na~0;havoc mp_add_~nb~0;mp_add_~a0~0 := mp_add_~a;mp_add_~a1~0 := mp_add_~a / 256;mp_add_~a2~0 := mp_add_~a / 65536;mp_add_~a3~0 := mp_add_~a / 16777216;mp_add_~b0~0 := mp_add_~b;mp_add_~b1~0 := mp_add_~b / 256;mp_add_~b2~0 := mp_add_~b / 65536;mp_add_~b3~0 := mp_add_~b / 16777216;mp_add_~na~0 := 4; 1925#L51 assume !(0 == mp_add_~a3~0 % 256); 1926#L51-1 mp_add_~nb~0 := 4; 1927#L61 assume !(0 == mp_add_~b3~0 % 256); 1928#L61-1 mp_add_~carry~0 := 0;mp_add_~i~0 := 0; 1942#L72-2 assume !!((mp_add_~i~0 % 256 < mp_add_~na~0 % 256 || mp_add_~i~0 % 256 < mp_add_~nb~0 % 256) || 0 != mp_add_~carry~0 % 65536);mp_add_~partial_sum~0 := mp_add_~carry~0;mp_add_~carry~0 := 0; 2010#L75 assume mp_add_~i~0 % 256 < mp_add_~na~0 % 256; 2009#L76 assume 0 == mp_add_~i~0 % 256;mp_add_~partial_sum~0 := mp_add_~partial_sum~0 % 65536 + mp_add_~a0~0 % 256; 2008#L76-2 assume !(1 == mp_add_~i~0 % 256); 2006#L77-1 assume !(2 == mp_add_~i~0 % 256); 2004#L78-1 assume !(3 == mp_add_~i~0 % 256); 2002#L75-1 assume mp_add_~i~0 % 256 < mp_add_~nb~0 % 256; 1996#L82 assume 0 == mp_add_~i~0 % 256;mp_add_~partial_sum~0 := mp_add_~partial_sum~0 % 65536 + mp_add_~b0~0 % 256; 1999#L82-2 assume !(1 == mp_add_~i~0 % 256); 1997#L83-1 assume !(2 == mp_add_~i~0 % 256); 1993#L84-1 assume !(3 == mp_add_~i~0 % 256); 1994#L81 assume mp_add_~partial_sum~0 % 65536 > 255;mp_add_~partial_sum~0 := ~bitwiseAnd(mp_add_~partial_sum~0 % 65536, 255);mp_add_~carry~0 := 1; 2052#L87-1 [2021-10-21 20:01:02,290 INFO L793 eck$LassoCheckResult]: Loop: 2052#L87-1 assume 0 == mp_add_~i~0 % 256;mp_add_~r0~0 := mp_add_~partial_sum~0; 2050#L91-1 assume !(1 == mp_add_~i~0 % 256); 2049#L92-1 assume !(2 == mp_add_~i~0 % 256); 2048#L93-1 assume !(3 == mp_add_~i~0 % 256); 2047#L94-1 mp_add_~i~0 := 1 + mp_add_~i~0 % 256; 1975#L72-2 assume !!((mp_add_~i~0 % 256 < mp_add_~na~0 % 256 || mp_add_~i~0 % 256 < mp_add_~nb~0 % 256) || 0 != mp_add_~carry~0 % 65536);mp_add_~partial_sum~0 := mp_add_~carry~0;mp_add_~carry~0 := 0; 1976#L75 assume !(mp_add_~i~0 % 256 < mp_add_~na~0 % 256); 2024#L75-1 assume !(mp_add_~i~0 % 256 < mp_add_~nb~0 % 256); 2019#L81 assume mp_add_~partial_sum~0 % 65536 > 255;mp_add_~partial_sum~0 := ~bitwiseAnd(mp_add_~partial_sum~0 % 65536, 255);mp_add_~carry~0 := 1; 1938#L87-1 assume !(0 == mp_add_~i~0 % 256); 1931#L91-1 assume 1 == mp_add_~i~0 % 256;mp_add_~r1~0 := mp_add_~partial_sum~0; 1932#L92-1 assume !(2 == mp_add_~i~0 % 256); 1934#L93-1 assume !(3 == mp_add_~i~0 % 256); 1943#L94-1 mp_add_~i~0 := 1 + mp_add_~i~0 % 256; 2071#L72-2 assume !!((mp_add_~i~0 % 256 < mp_add_~na~0 % 256 || mp_add_~i~0 % 256 < mp_add_~nb~0 % 256) || 0 != mp_add_~carry~0 % 65536);mp_add_~partial_sum~0 := mp_add_~carry~0;mp_add_~carry~0 := 0; 2068#L75 assume mp_add_~i~0 % 256 < mp_add_~na~0 % 256; 2069#L76 assume 0 == mp_add_~i~0 % 256;mp_add_~partial_sum~0 := mp_add_~partial_sum~0 % 65536 + mp_add_~a0~0 % 256; 2072#L76-2 assume !(1 == mp_add_~i~0 % 256); 2070#L77-1 assume !(2 == mp_add_~i~0 % 256); 2064#L78-1 assume !(3 == mp_add_~i~0 % 256); 2057#L75-1 assume !(mp_add_~i~0 % 256 < mp_add_~nb~0 % 256); 2054#L81 assume mp_add_~partial_sum~0 % 65536 > 255;mp_add_~partial_sum~0 := ~bitwiseAnd(mp_add_~partial_sum~0 % 65536, 255);mp_add_~carry~0 := 1; 2052#L87-1 [2021-10-21 20:01:02,291 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:01:02,291 INFO L82 PathProgramCache]: Analyzing trace with hash 389365736, now seen corresponding path program 2 times [2021-10-21 20:01:02,291 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:01:02,291 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [610472617] [2021-10-21 20:01:02,291 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:01:02,292 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:01:02,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:01:02,309 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 20:01:02,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:01:02,332 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 20:01:02,332 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:01:02,332 INFO L82 PathProgramCache]: Analyzing trace with hash 1165423065, now seen corresponding path program 1 times [2021-10-21 20:01:02,333 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:01:02,333 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1741529594] [2021-10-21 20:01:02,333 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:01:02,333 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:01:02,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:01:02,419 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 20:01:02,419 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 20:01:02,420 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1741529594] [2021-10-21 20:01:02,420 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1741529594] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-21 20:01:02,422 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-21 20:01:02,422 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-21 20:01:02,422 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [285729195] [2021-10-21 20:01:02,423 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-10-21 20:01:02,423 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 20:01:02,424 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-21 20:01:02,427 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-21 20:01:02,427 INFO L87 Difference]: Start difference. First operand 191 states and 280 transitions. cyclomatic complexity: 91 Second operand has 5 states, 5 states have (on average 4.4) internal successors, (22), 5 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:01:02,718 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 20:01:02,719 INFO L93 Difference]: Finished difference Result 367 states and 532 transitions. [2021-10-21 20:01:02,719 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-21 20:01:02,719 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 367 states and 532 transitions. [2021-10-21 20:01:02,723 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 311 [2021-10-21 20:01:02,727 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 367 states to 367 states and 532 transitions. [2021-10-21 20:01:02,727 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 367 [2021-10-21 20:01:02,727 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 367 [2021-10-21 20:01:02,728 INFO L73 IsDeterministic]: Start isDeterministic. Operand 367 states and 532 transitions. [2021-10-21 20:01:02,728 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-21 20:01:02,728 INFO L681 BuchiCegarLoop]: Abstraction has 367 states and 532 transitions. [2021-10-21 20:01:02,729 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 367 states and 532 transitions. [2021-10-21 20:01:02,735 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 367 to 288. [2021-10-21 20:01:02,736 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 288 states, 288 states have (on average 1.4548611111111112) internal successors, (419), 287 states have internal predecessors, (419), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:01:02,737 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 288 states to 288 states and 419 transitions. [2021-10-21 20:01:02,737 INFO L704 BuchiCegarLoop]: Abstraction has 288 states and 419 transitions. [2021-10-21 20:01:02,737 INFO L587 BuchiCegarLoop]: Abstraction has 288 states and 419 transitions. [2021-10-21 20:01:02,737 INFO L425 BuchiCegarLoop]: ======== Iteration 10============ [2021-10-21 20:01:02,738 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 288 states and 419 transitions. [2021-10-21 20:01:02,740 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 249 [2021-10-21 20:01:02,740 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-21 20:01:02,740 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-21 20:01:02,741 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 20:01:02,741 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 20:01:02,741 INFO L791 eck$LassoCheckResult]: Stem: 2517#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string0.base, #t~string0.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string0.base, #t~string0.offset, 1);call write~init~int(0, #t~string0.base, 1 + #t~string0.offset, 1);call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(15); 2504#L-1 havoc main_#res;havoc main_#t~nondet3, main_#t~ret4, main_~a~0, main_~b~0, main_~r~1;havoc main_~a~0;havoc main_~b~0;havoc main_~r~1;main_~b~0 := main_#t~nondet3;havoc main_#t~nondet3;main_~a~0 := 234770789;mp_add_#in~a, mp_add_#in~b := main_~a~0, main_~b~0;havoc mp_add_#res;havoc mp_add_~a, mp_add_~b, mp_add_~a0~0, mp_add_~a1~0, mp_add_~a2~0, mp_add_~a3~0, mp_add_~b0~0, mp_add_~b1~0, mp_add_~b2~0, mp_add_~b3~0, mp_add_~r0~0, mp_add_~r1~0, mp_add_~r2~0, mp_add_~r3~0, mp_add_~carry~0, mp_add_~partial_sum~0, mp_add_~r~0, mp_add_~i~0, mp_add_~na~0, mp_add_~nb~0;mp_add_~a := mp_add_#in~a;mp_add_~b := mp_add_#in~b;havoc mp_add_~a0~0;havoc mp_add_~a1~0;havoc mp_add_~a2~0;havoc mp_add_~a3~0;havoc mp_add_~b0~0;havoc mp_add_~b1~0;havoc mp_add_~b2~0;havoc mp_add_~b3~0;havoc mp_add_~r0~0;havoc mp_add_~r1~0;havoc mp_add_~r2~0;havoc mp_add_~r3~0;havoc mp_add_~carry~0;havoc mp_add_~partial_sum~0;havoc mp_add_~r~0;havoc mp_add_~i~0;havoc mp_add_~na~0;havoc mp_add_~nb~0;mp_add_~a0~0 := mp_add_~a;mp_add_~a1~0 := mp_add_~a / 256;mp_add_~a2~0 := mp_add_~a / 65536;mp_add_~a3~0 := mp_add_~a / 16777216;mp_add_~b0~0 := mp_add_~b;mp_add_~b1~0 := mp_add_~b / 256;mp_add_~b2~0 := mp_add_~b / 65536;mp_add_~b3~0 := mp_add_~b / 16777216;mp_add_~na~0 := 4; 2494#L51 assume !(0 == mp_add_~a3~0 % 256); 2495#L51-1 mp_add_~nb~0 := 4; 2496#L61 assume !(0 == mp_add_~b3~0 % 256); 2497#L61-1 mp_add_~carry~0 := 0;mp_add_~i~0 := 0; 2513#L72-2 assume !!((mp_add_~i~0 % 256 < mp_add_~na~0 % 256 || mp_add_~i~0 % 256 < mp_add_~nb~0 % 256) || 0 != mp_add_~carry~0 % 65536);mp_add_~partial_sum~0 := mp_add_~carry~0;mp_add_~carry~0 := 0; 2587#L75 assume mp_add_~i~0 % 256 < mp_add_~na~0 % 256; 2586#L76 assume 0 == mp_add_~i~0 % 256;mp_add_~partial_sum~0 := mp_add_~partial_sum~0 % 65536 + mp_add_~a0~0 % 256; 2585#L76-2 assume !(1 == mp_add_~i~0 % 256); 2583#L77-1 assume !(2 == mp_add_~i~0 % 256); 2581#L78-1 assume !(3 == mp_add_~i~0 % 256); 2579#L75-1 assume mp_add_~i~0 % 256 < mp_add_~nb~0 % 256; 2573#L82 assume 0 == mp_add_~i~0 % 256;mp_add_~partial_sum~0 := mp_add_~partial_sum~0 % 65536 + mp_add_~b0~0 % 256; 2576#L82-2 assume !(1 == mp_add_~i~0 % 256); 2574#L83-1 assume !(2 == mp_add_~i~0 % 256); 2570#L84-1 assume !(3 == mp_add_~i~0 % 256); 2571#L81 assume mp_add_~partial_sum~0 % 65536 > 255;mp_add_~partial_sum~0 := ~bitwiseAnd(mp_add_~partial_sum~0 % 65536, 255);mp_add_~carry~0 := 1; 2601#L87-1 [2021-10-21 20:01:02,742 INFO L793 eck$LassoCheckResult]: Loop: 2601#L87-1 assume 0 == mp_add_~i~0 % 256;mp_add_~r0~0 := mp_add_~partial_sum~0; 2602#L91-1 assume !(1 == mp_add_~i~0 % 256); 2597#L92-1 assume !(2 == mp_add_~i~0 % 256); 2598#L93-1 assume !(3 == mp_add_~i~0 % 256); 2593#L94-1 mp_add_~i~0 := 1 + mp_add_~i~0 % 256; 2594#L72-2 assume !!((mp_add_~i~0 % 256 < mp_add_~na~0 % 256 || mp_add_~i~0 % 256 < mp_add_~nb~0 % 256) || 0 != mp_add_~carry~0 % 65536);mp_add_~partial_sum~0 := mp_add_~carry~0;mp_add_~carry~0 := 0; 2607#L75 assume !(mp_add_~i~0 % 256 < mp_add_~na~0 % 256); 2608#L75-1 assume !(mp_add_~i~0 % 256 < mp_add_~nb~0 % 256); 2531#L81 assume mp_add_~partial_sum~0 % 65536 > 255;mp_add_~partial_sum~0 := ~bitwiseAnd(mp_add_~partial_sum~0 % 65536, 255);mp_add_~carry~0 := 1; 2723#L87-1 assume !(0 == mp_add_~i~0 % 256); 2722#L91-1 assume !(1 == mp_add_~i~0 % 256); 2502#L92-1 assume 2 == mp_add_~i~0 % 256;mp_add_~r2~0 := mp_add_~partial_sum~0; 2503#L93-1 assume 3 == mp_add_~i~0 % 256;mp_add_~r3~0 := mp_add_~partial_sum~0; 2515#L94-1 mp_add_~i~0 := 1 + mp_add_~i~0 % 256; 2546#L72-2 assume !!((mp_add_~i~0 % 256 < mp_add_~na~0 % 256 || mp_add_~i~0 % 256 < mp_add_~nb~0 % 256) || 0 != mp_add_~carry~0 % 65536);mp_add_~partial_sum~0 := mp_add_~carry~0;mp_add_~carry~0 := 0; 2547#L75 assume mp_add_~i~0 % 256 < mp_add_~na~0 % 256; 2604#L76 assume 0 == mp_add_~i~0 % 256;mp_add_~partial_sum~0 := mp_add_~partial_sum~0 % 65536 + mp_add_~a0~0 % 256; 2605#L76-2 assume !(1 == mp_add_~i~0 % 256); 2655#L77-1 assume !(2 == mp_add_~i~0 % 256); 2649#L78-1 assume !(3 == mp_add_~i~0 % 256); 2650#L75-1 assume !(mp_add_~i~0 % 256 < mp_add_~nb~0 % 256); 2617#L81 assume mp_add_~partial_sum~0 % 65536 > 255;mp_add_~partial_sum~0 := ~bitwiseAnd(mp_add_~partial_sum~0 % 65536, 255);mp_add_~carry~0 := 1; 2601#L87-1 [2021-10-21 20:01:02,742 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:01:02,742 INFO L82 PathProgramCache]: Analyzing trace with hash 389365736, now seen corresponding path program 3 times [2021-10-21 20:01:02,742 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:01:02,743 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [703692992] [2021-10-21 20:01:02,743 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:01:02,743 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:01:02,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:01:02,761 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 20:01:02,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:01:02,788 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 20:01:02,788 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:01:02,788 INFO L82 PathProgramCache]: Analyzing trace with hash 1115550935, now seen corresponding path program 1 times [2021-10-21 20:01:02,788 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:01:02,789 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [877224627] [2021-10-21 20:01:02,789 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:01:02,789 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:01:02,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:01:02,818 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-10-21 20:01:02,818 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 20:01:02,819 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [877224627] [2021-10-21 20:01:02,819 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [877224627] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-21 20:01:02,819 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-21 20:01:02,819 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-21 20:01:02,819 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [613690984] [2021-10-21 20:01:02,820 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-10-21 20:01:02,821 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 20:01:02,821 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-21 20:01:02,821 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-21 20:01:02,822 INFO L87 Difference]: Start difference. First operand 288 states and 419 transitions. cyclomatic complexity: 134 Second operand has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:01:02,909 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 20:01:02,909 INFO L93 Difference]: Finished difference Result 340 states and 495 transitions. [2021-10-21 20:01:02,910 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-21 20:01:02,910 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 340 states and 495 transitions. [2021-10-21 20:01:02,913 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 301 [2021-10-21 20:01:02,918 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 340 states to 340 states and 495 transitions. [2021-10-21 20:01:02,918 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 340 [2021-10-21 20:01:02,919 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 340 [2021-10-21 20:01:02,919 INFO L73 IsDeterministic]: Start isDeterministic. Operand 340 states and 495 transitions. [2021-10-21 20:01:02,920 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-21 20:01:02,920 INFO L681 BuchiCegarLoop]: Abstraction has 340 states and 495 transitions. [2021-10-21 20:01:02,920 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 340 states and 495 transitions. [2021-10-21 20:01:02,926 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 340 to 334. [2021-10-21 20:01:02,927 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 334 states, 334 states have (on average 1.464071856287425) internal successors, (489), 333 states have internal predecessors, (489), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:01:02,929 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 334 states to 334 states and 489 transitions. [2021-10-21 20:01:02,929 INFO L704 BuchiCegarLoop]: Abstraction has 334 states and 489 transitions. [2021-10-21 20:01:02,929 INFO L587 BuchiCegarLoop]: Abstraction has 334 states and 489 transitions. [2021-10-21 20:01:02,929 INFO L425 BuchiCegarLoop]: ======== Iteration 11============ [2021-10-21 20:01:02,929 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 334 states and 489 transitions. [2021-10-21 20:01:02,931 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 295 [2021-10-21 20:01:02,932 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-21 20:01:02,932 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-21 20:01:02,933 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 20:01:02,933 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 20:01:02,933 INFO L791 eck$LassoCheckResult]: Stem: 3150#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string0.base, #t~string0.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string0.base, #t~string0.offset, 1);call write~init~int(0, #t~string0.base, 1 + #t~string0.offset, 1);call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(15); 3139#L-1 havoc main_#res;havoc main_#t~nondet3, main_#t~ret4, main_~a~0, main_~b~0, main_~r~1;havoc main_~a~0;havoc main_~b~0;havoc main_~r~1;main_~b~0 := main_#t~nondet3;havoc main_#t~nondet3;main_~a~0 := 234770789;mp_add_#in~a, mp_add_#in~b := main_~a~0, main_~b~0;havoc mp_add_#res;havoc mp_add_~a, mp_add_~b, mp_add_~a0~0, mp_add_~a1~0, mp_add_~a2~0, mp_add_~a3~0, mp_add_~b0~0, mp_add_~b1~0, mp_add_~b2~0, mp_add_~b3~0, mp_add_~r0~0, mp_add_~r1~0, mp_add_~r2~0, mp_add_~r3~0, mp_add_~carry~0, mp_add_~partial_sum~0, mp_add_~r~0, mp_add_~i~0, mp_add_~na~0, mp_add_~nb~0;mp_add_~a := mp_add_#in~a;mp_add_~b := mp_add_#in~b;havoc mp_add_~a0~0;havoc mp_add_~a1~0;havoc mp_add_~a2~0;havoc mp_add_~a3~0;havoc mp_add_~b0~0;havoc mp_add_~b1~0;havoc mp_add_~b2~0;havoc mp_add_~b3~0;havoc mp_add_~r0~0;havoc mp_add_~r1~0;havoc mp_add_~r2~0;havoc mp_add_~r3~0;havoc mp_add_~carry~0;havoc mp_add_~partial_sum~0;havoc mp_add_~r~0;havoc mp_add_~i~0;havoc mp_add_~na~0;havoc mp_add_~nb~0;mp_add_~a0~0 := mp_add_~a;mp_add_~a1~0 := mp_add_~a / 256;mp_add_~a2~0 := mp_add_~a / 65536;mp_add_~a3~0 := mp_add_~a / 16777216;mp_add_~b0~0 := mp_add_~b;mp_add_~b1~0 := mp_add_~b / 256;mp_add_~b2~0 := mp_add_~b / 65536;mp_add_~b3~0 := mp_add_~b / 16777216;mp_add_~na~0 := 4; 3131#L51 assume !(0 == mp_add_~a3~0 % 256); 3132#L51-1 mp_add_~nb~0 := 4; 3133#L61 assume !(0 == mp_add_~b3~0 % 256); 3134#L61-1 mp_add_~carry~0 := 0;mp_add_~i~0 := 0; 3145#L72-2 assume !!((mp_add_~i~0 % 256 < mp_add_~na~0 % 256 || mp_add_~i~0 % 256 < mp_add_~nb~0 % 256) || 0 != mp_add_~carry~0 % 65536);mp_add_~partial_sum~0 := mp_add_~carry~0;mp_add_~carry~0 := 0; 3219#L75 assume mp_add_~i~0 % 256 < mp_add_~na~0 % 256; 3218#L76 assume 0 == mp_add_~i~0 % 256;mp_add_~partial_sum~0 := mp_add_~partial_sum~0 % 65536 + mp_add_~a0~0 % 256; 3217#L76-2 assume !(1 == mp_add_~i~0 % 256); 3215#L77-1 assume !(2 == mp_add_~i~0 % 256); 3213#L78-1 assume !(3 == mp_add_~i~0 % 256); 3211#L75-1 assume mp_add_~i~0 % 256 < mp_add_~nb~0 % 256; 3205#L82 assume 0 == mp_add_~i~0 % 256;mp_add_~partial_sum~0 := mp_add_~partial_sum~0 % 65536 + mp_add_~b0~0 % 256; 3208#L82-2 assume !(1 == mp_add_~i~0 % 256); 3206#L83-1 assume !(2 == mp_add_~i~0 % 256); 3202#L84-1 assume !(3 == mp_add_~i~0 % 256); 3203#L81 assume mp_add_~partial_sum~0 % 65536 > 255;mp_add_~partial_sum~0 := ~bitwiseAnd(mp_add_~partial_sum~0 % 65536, 255);mp_add_~carry~0 := 1; 3236#L87-1 [2021-10-21 20:01:02,933 INFO L793 eck$LassoCheckResult]: Loop: 3236#L87-1 assume 0 == mp_add_~i~0 % 256;mp_add_~r0~0 := mp_add_~partial_sum~0; 3237#L91-1 assume !(1 == mp_add_~i~0 % 256); 3228#L92-1 assume !(2 == mp_add_~i~0 % 256); 3229#L93-1 assume !(3 == mp_add_~i~0 % 256); 3224#L94-1 mp_add_~i~0 := 1 + mp_add_~i~0 % 256; 3225#L72-2 assume !!((mp_add_~i~0 % 256 < mp_add_~na~0 % 256 || mp_add_~i~0 % 256 < mp_add_~nb~0 % 256) || 0 != mp_add_~carry~0 % 65536);mp_add_~partial_sum~0 := mp_add_~carry~0;mp_add_~carry~0 := 0; 3260#L75 assume !(mp_add_~i~0 % 256 < mp_add_~na~0 % 256); 3256#L75-1 assume !(mp_add_~i~0 % 256 < mp_add_~nb~0 % 256); 3257#L81 assume mp_add_~partial_sum~0 % 65536 > 255;mp_add_~partial_sum~0 := ~bitwiseAnd(mp_add_~partial_sum~0 % 65536, 255);mp_add_~carry~0 := 1; 3329#L87-1 assume !(0 == mp_add_~i~0 % 256); 3289#L91-1 assume !(1 == mp_add_~i~0 % 256); 3288#L92-1 assume 2 == mp_add_~i~0 % 256;mp_add_~r2~0 := mp_add_~partial_sum~0; 3146#L93-1 assume !(3 == mp_add_~i~0 % 256); 3147#L94-1 mp_add_~i~0 := 1 + mp_add_~i~0 % 256; 3191#L72-2 assume !!((mp_add_~i~0 % 256 < mp_add_~na~0 % 256 || mp_add_~i~0 % 256 < mp_add_~nb~0 % 256) || 0 != mp_add_~carry~0 % 65536);mp_add_~partial_sum~0 := mp_add_~carry~0;mp_add_~carry~0 := 0; 3283#L75 assume mp_add_~i~0 % 256 < mp_add_~na~0 % 256; 3284#L76 assume 0 == mp_add_~i~0 % 256;mp_add_~partial_sum~0 := mp_add_~partial_sum~0 % 65536 + mp_add_~a0~0 % 256; 3319#L76-2 assume !(1 == mp_add_~i~0 % 256); 3448#L77-1 assume !(2 == mp_add_~i~0 % 256); 3447#L78-1 assume !(3 == mp_add_~i~0 % 256); 3446#L75-1 assume !(mp_add_~i~0 % 256 < mp_add_~nb~0 % 256); 3442#L81 assume mp_add_~partial_sum~0 % 65536 > 255;mp_add_~partial_sum~0 := ~bitwiseAnd(mp_add_~partial_sum~0 % 65536, 255);mp_add_~carry~0 := 1; 3236#L87-1 [2021-10-21 20:01:02,934 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:01:02,934 INFO L82 PathProgramCache]: Analyzing trace with hash 389365736, now seen corresponding path program 4 times [2021-10-21 20:01:02,934 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:01:02,934 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2146299877] [2021-10-21 20:01:02,934 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:01:02,934 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:01:02,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:01:02,969 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 20:01:03,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:01:03,009 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 20:01:03,009 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:01:03,010 INFO L82 PathProgramCache]: Analyzing trace with hash 722523925, now seen corresponding path program 1 times [2021-10-21 20:01:03,010 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:01:03,010 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [165793109] [2021-10-21 20:01:03,010 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:01:03,010 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:01:03,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:01:03,142 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 8 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 20:01:03,142 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 20:01:03,142 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [165793109] [2021-10-21 20:01:03,142 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [165793109] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 20:01:03,143 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [730299158] [2021-10-21 20:01:03,143 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:01:03,143 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-21 20:01:03,143 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:01:03,148 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-21 20:01:03,166 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-10-21 20:01:03,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:01:03,216 INFO L263 TraceCheckSpWp]: Trace formula consists of 47 conjuncts, 5 conjunts are in the unsatisfiable core [2021-10-21 20:01:03,218 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 20:01:03,514 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 7 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 20:01:03,514 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [730299158] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 20:01:03,515 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-21 20:01:03,515 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 3] total 5 [2021-10-21 20:01:03,515 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1898116718] [2021-10-21 20:01:03,515 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-10-21 20:01:03,515 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 20:01:03,516 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-21 20:01:03,516 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-10-21 20:01:03,516 INFO L87 Difference]: Start difference. First operand 334 states and 489 transitions. cyclomatic complexity: 158 Second operand has 6 states, 6 states have (on average 5.0) internal successors, (30), 5 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:01:03,797 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 20:01:03,797 INFO L93 Difference]: Finished difference Result 359 states and 490 transitions. [2021-10-21 20:01:03,798 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-21 20:01:03,798 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 359 states and 490 transitions. [2021-10-21 20:01:03,801 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 306 [2021-10-21 20:01:03,804 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 359 states to 359 states and 490 transitions. [2021-10-21 20:01:03,804 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 359 [2021-10-21 20:01:03,805 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 359 [2021-10-21 20:01:03,805 INFO L73 IsDeterministic]: Start isDeterministic. Operand 359 states and 490 transitions. [2021-10-21 20:01:03,805 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-21 20:01:03,805 INFO L681 BuchiCegarLoop]: Abstraction has 359 states and 490 transitions. [2021-10-21 20:01:03,806 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 359 states and 490 transitions. [2021-10-21 20:01:03,813 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 359 to 302. [2021-10-21 20:01:03,814 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 302 states, 302 states have (on average 1.4172185430463575) internal successors, (428), 301 states have internal predecessors, (428), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:01:03,815 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 302 states to 302 states and 428 transitions. [2021-10-21 20:01:03,815 INFO L704 BuchiCegarLoop]: Abstraction has 302 states and 428 transitions. [2021-10-21 20:01:03,815 INFO L587 BuchiCegarLoop]: Abstraction has 302 states and 428 transitions. [2021-10-21 20:01:03,815 INFO L425 BuchiCegarLoop]: ======== Iteration 12============ [2021-10-21 20:01:03,816 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 302 states and 428 transitions. [2021-10-21 20:01:03,817 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 257 [2021-10-21 20:01:03,818 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-21 20:01:03,818 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-21 20:01:03,820 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 20:01:03,820 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 20:01:03,821 INFO L791 eck$LassoCheckResult]: Stem: 3916#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string0.base, #t~string0.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string0.base, #t~string0.offset, 1);call write~init~int(0, #t~string0.base, 1 + #t~string0.offset, 1);call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(15); 3906#L-1 havoc main_#res;havoc main_#t~nondet3, main_#t~ret4, main_~a~0, main_~b~0, main_~r~1;havoc main_~a~0;havoc main_~b~0;havoc main_~r~1;main_~b~0 := main_#t~nondet3;havoc main_#t~nondet3;main_~a~0 := 234770789;mp_add_#in~a, mp_add_#in~b := main_~a~0, main_~b~0;havoc mp_add_#res;havoc mp_add_~a, mp_add_~b, mp_add_~a0~0, mp_add_~a1~0, mp_add_~a2~0, mp_add_~a3~0, mp_add_~b0~0, mp_add_~b1~0, mp_add_~b2~0, mp_add_~b3~0, mp_add_~r0~0, mp_add_~r1~0, mp_add_~r2~0, mp_add_~r3~0, mp_add_~carry~0, mp_add_~partial_sum~0, mp_add_~r~0, mp_add_~i~0, mp_add_~na~0, mp_add_~nb~0;mp_add_~a := mp_add_#in~a;mp_add_~b := mp_add_#in~b;havoc mp_add_~a0~0;havoc mp_add_~a1~0;havoc mp_add_~a2~0;havoc mp_add_~a3~0;havoc mp_add_~b0~0;havoc mp_add_~b1~0;havoc mp_add_~b2~0;havoc mp_add_~b3~0;havoc mp_add_~r0~0;havoc mp_add_~r1~0;havoc mp_add_~r2~0;havoc mp_add_~r3~0;havoc mp_add_~carry~0;havoc mp_add_~partial_sum~0;havoc mp_add_~r~0;havoc mp_add_~i~0;havoc mp_add_~na~0;havoc mp_add_~nb~0;mp_add_~a0~0 := mp_add_~a;mp_add_~a1~0 := mp_add_~a / 256;mp_add_~a2~0 := mp_add_~a / 65536;mp_add_~a3~0 := mp_add_~a / 16777216;mp_add_~b0~0 := mp_add_~b;mp_add_~b1~0 := mp_add_~b / 256;mp_add_~b2~0 := mp_add_~b / 65536;mp_add_~b3~0 := mp_add_~b / 16777216;mp_add_~na~0 := 4; 3898#L51 assume !(0 == mp_add_~a3~0 % 256); 3899#L51-1 mp_add_~nb~0 := 4; 3900#L61 assume !(0 == mp_add_~b3~0 % 256); 3901#L61-1 mp_add_~carry~0 := 0;mp_add_~i~0 := 0; 3913#L72-2 assume !!((mp_add_~i~0 % 256 < mp_add_~na~0 % 256 || mp_add_~i~0 % 256 < mp_add_~nb~0 % 256) || 0 != mp_add_~carry~0 % 65536);mp_add_~partial_sum~0 := mp_add_~carry~0;mp_add_~carry~0 := 0; 3984#L75 assume mp_add_~i~0 % 256 < mp_add_~na~0 % 256; 3983#L76 assume 0 == mp_add_~i~0 % 256;mp_add_~partial_sum~0 := mp_add_~partial_sum~0 % 65536 + mp_add_~a0~0 % 256; 3982#L76-2 assume !(1 == mp_add_~i~0 % 256); 3980#L77-1 assume !(2 == mp_add_~i~0 % 256); 3978#L78-1 assume !(3 == mp_add_~i~0 % 256); 3976#L75-1 assume mp_add_~i~0 % 256 < mp_add_~nb~0 % 256; 3970#L82 assume 0 == mp_add_~i~0 % 256;mp_add_~partial_sum~0 := mp_add_~partial_sum~0 % 65536 + mp_add_~b0~0 % 256; 3973#L82-2 assume !(1 == mp_add_~i~0 % 256); 3971#L83-1 assume !(2 == mp_add_~i~0 % 256); 3967#L84-1 assume !(3 == mp_add_~i~0 % 256); 3968#L81 assume mp_add_~partial_sum~0 % 65536 > 255;mp_add_~partial_sum~0 := ~bitwiseAnd(mp_add_~partial_sum~0 % 65536, 255);mp_add_~carry~0 := 1; 4145#L87-1 [2021-10-21 20:01:03,823 INFO L793 eck$LassoCheckResult]: Loop: 4145#L87-1 assume 0 == mp_add_~i~0 % 256;mp_add_~r0~0 := mp_add_~partial_sum~0; 4069#L91-1 assume !(1 == mp_add_~i~0 % 256); 4131#L92-1 assume !(2 == mp_add_~i~0 % 256); 4113#L93-1 assume !(3 == mp_add_~i~0 % 256); 4110#L94-1 mp_add_~i~0 := 1 + mp_add_~i~0 % 256; 4109#L72-2 assume !!((mp_add_~i~0 % 256 < mp_add_~na~0 % 256 || mp_add_~i~0 % 256 < mp_add_~nb~0 % 256) || 0 != mp_add_~carry~0 % 65536);mp_add_~partial_sum~0 := mp_add_~carry~0;mp_add_~carry~0 := 0; 3993#L75 assume mp_add_~i~0 % 256 < mp_add_~na~0 % 256; 3994#L76 assume !(0 == mp_add_~i~0 % 256); 4108#L76-2 assume 1 == mp_add_~i~0 % 256;mp_add_~partial_sum~0 := mp_add_~partial_sum~0 % 65536 + mp_add_~a1~0 % 256; 4106#L77-1 assume !(2 == mp_add_~i~0 % 256); 4103#L78-1 assume !(3 == mp_add_~i~0 % 256); 4097#L75-1 assume !(mp_add_~i~0 % 256 < mp_add_~nb~0 % 256); 4093#L81 assume mp_add_~partial_sum~0 % 65536 > 255;mp_add_~partial_sum~0 := ~bitwiseAnd(mp_add_~partial_sum~0 % 65536, 255);mp_add_~carry~0 := 1; 4094#L87-1 assume !(0 == mp_add_~i~0 % 256); 4014#L91-1 assume 1 == mp_add_~i~0 % 256;mp_add_~r1~0 := mp_add_~partial_sum~0; 4006#L92-1 assume !(2 == mp_add_~i~0 % 256); 3997#L93-1 assume !(3 == mp_add_~i~0 % 256); 3996#L94-1 mp_add_~i~0 := 1 + mp_add_~i~0 % 256; 4062#L72-2 assume !!((mp_add_~i~0 % 256 < mp_add_~na~0 % 256 || mp_add_~i~0 % 256 < mp_add_~nb~0 % 256) || 0 != mp_add_~carry~0 % 65536);mp_add_~partial_sum~0 := mp_add_~carry~0;mp_add_~carry~0 := 0; 4056#L75 assume mp_add_~i~0 % 256 < mp_add_~na~0 % 256; 4049#L76 assume 0 == mp_add_~i~0 % 256;mp_add_~partial_sum~0 := mp_add_~partial_sum~0 % 65536 + mp_add_~a0~0 % 256; 4050#L76-2 assume !(1 == mp_add_~i~0 % 256); 4154#L77-1 assume !(2 == mp_add_~i~0 % 256); 4152#L78-1 assume !(3 == mp_add_~i~0 % 256); 4150#L75-1 assume !(mp_add_~i~0 % 256 < mp_add_~nb~0 % 256); 4148#L81 assume mp_add_~partial_sum~0 % 65536 > 255;mp_add_~partial_sum~0 := ~bitwiseAnd(mp_add_~partial_sum~0 % 65536, 255);mp_add_~carry~0 := 1; 4145#L87-1 [2021-10-21 20:01:03,823 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:01:03,824 INFO L82 PathProgramCache]: Analyzing trace with hash 389365736, now seen corresponding path program 5 times [2021-10-21 20:01:03,824 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:01:03,824 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1120077156] [2021-10-21 20:01:03,824 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:01:03,824 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:01:03,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:01:03,845 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 20:01:03,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:01:03,885 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 20:01:03,888 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:01:03,888 INFO L82 PathProgramCache]: Analyzing trace with hash 1570645289, now seen corresponding path program 1 times [2021-10-21 20:01:03,889 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:01:03,889 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1350460042] [2021-10-21 20:01:03,889 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:01:03,889 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:01:03,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:01:03,957 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 20:01:03,957 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 20:01:03,958 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1350460042] [2021-10-21 20:01:03,958 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1350460042] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-21 20:01:03,958 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-21 20:01:03,958 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-21 20:01:03,958 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [10807658] [2021-10-21 20:01:03,960 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-10-21 20:01:03,960 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 20:01:03,962 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-21 20:01:03,963 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-21 20:01:03,963 INFO L87 Difference]: Start difference. First operand 302 states and 428 transitions. cyclomatic complexity: 129 Second operand has 4 states, 4 states have (on average 6.5) internal successors, (26), 4 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:01:04,143 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 20:01:04,143 INFO L93 Difference]: Finished difference Result 457 states and 646 transitions. [2021-10-21 20:01:04,144 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-21 20:01:04,144 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 457 states and 646 transitions. [2021-10-21 20:01:04,148 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 406 [2021-10-21 20:01:04,152 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 457 states to 457 states and 646 transitions. [2021-10-21 20:01:04,152 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 457 [2021-10-21 20:01:04,153 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 457 [2021-10-21 20:01:04,153 INFO L73 IsDeterministic]: Start isDeterministic. Operand 457 states and 646 transitions. [2021-10-21 20:01:04,154 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-21 20:01:04,154 INFO L681 BuchiCegarLoop]: Abstraction has 457 states and 646 transitions. [2021-10-21 20:01:04,155 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 457 states and 646 transitions. [2021-10-21 20:01:04,161 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 457 to 344. [2021-10-21 20:01:04,162 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 344 states, 344 states have (on average 1.447674418604651) internal successors, (498), 343 states have internal predecessors, (498), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:01:04,163 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 344 states to 344 states and 498 transitions. [2021-10-21 20:01:04,163 INFO L704 BuchiCegarLoop]: Abstraction has 344 states and 498 transitions. [2021-10-21 20:01:04,163 INFO L587 BuchiCegarLoop]: Abstraction has 344 states and 498 transitions. [2021-10-21 20:01:04,163 INFO L425 BuchiCegarLoop]: ======== Iteration 13============ [2021-10-21 20:01:04,164 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 344 states and 498 transitions. [2021-10-21 20:01:04,166 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 308 [2021-10-21 20:01:04,166 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-21 20:01:04,166 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-21 20:01:04,167 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 20:01:04,167 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 20:01:04,167 INFO L791 eck$LassoCheckResult]: Stem: 4687#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string0.base, #t~string0.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string0.base, #t~string0.offset, 1);call write~init~int(0, #t~string0.base, 1 + #t~string0.offset, 1);call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(15); 4674#L-1 havoc main_#res;havoc main_#t~nondet3, main_#t~ret4, main_~a~0, main_~b~0, main_~r~1;havoc main_~a~0;havoc main_~b~0;havoc main_~r~1;main_~b~0 := main_#t~nondet3;havoc main_#t~nondet3;main_~a~0 := 234770789;mp_add_#in~a, mp_add_#in~b := main_~a~0, main_~b~0;havoc mp_add_#res;havoc mp_add_~a, mp_add_~b, mp_add_~a0~0, mp_add_~a1~0, mp_add_~a2~0, mp_add_~a3~0, mp_add_~b0~0, mp_add_~b1~0, mp_add_~b2~0, mp_add_~b3~0, mp_add_~r0~0, mp_add_~r1~0, mp_add_~r2~0, mp_add_~r3~0, mp_add_~carry~0, mp_add_~partial_sum~0, mp_add_~r~0, mp_add_~i~0, mp_add_~na~0, mp_add_~nb~0;mp_add_~a := mp_add_#in~a;mp_add_~b := mp_add_#in~b;havoc mp_add_~a0~0;havoc mp_add_~a1~0;havoc mp_add_~a2~0;havoc mp_add_~a3~0;havoc mp_add_~b0~0;havoc mp_add_~b1~0;havoc mp_add_~b2~0;havoc mp_add_~b3~0;havoc mp_add_~r0~0;havoc mp_add_~r1~0;havoc mp_add_~r2~0;havoc mp_add_~r3~0;havoc mp_add_~carry~0;havoc mp_add_~partial_sum~0;havoc mp_add_~r~0;havoc mp_add_~i~0;havoc mp_add_~na~0;havoc mp_add_~nb~0;mp_add_~a0~0 := mp_add_~a;mp_add_~a1~0 := mp_add_~a / 256;mp_add_~a2~0 := mp_add_~a / 65536;mp_add_~a3~0 := mp_add_~a / 16777216;mp_add_~b0~0 := mp_add_~b;mp_add_~b1~0 := mp_add_~b / 256;mp_add_~b2~0 := mp_add_~b / 65536;mp_add_~b3~0 := mp_add_~b / 16777216;mp_add_~na~0 := 4; 4664#L51 assume !(0 == mp_add_~a3~0 % 256); 4665#L51-1 mp_add_~nb~0 := 4; 4666#L61 assume !(0 == mp_add_~b3~0 % 256); 4667#L61-1 mp_add_~carry~0 := 0;mp_add_~i~0 := 0; 4683#L72-2 assume !!((mp_add_~i~0 % 256 < mp_add_~na~0 % 256 || mp_add_~i~0 % 256 < mp_add_~nb~0 % 256) || 0 != mp_add_~carry~0 % 65536);mp_add_~partial_sum~0 := mp_add_~carry~0;mp_add_~carry~0 := 0; 4747#L75 assume mp_add_~i~0 % 256 < mp_add_~na~0 % 256; 4746#L76 assume 0 == mp_add_~i~0 % 256;mp_add_~partial_sum~0 := mp_add_~partial_sum~0 % 65536 + mp_add_~a0~0 % 256; 4745#L76-2 assume !(1 == mp_add_~i~0 % 256); 4743#L77-1 assume !(2 == mp_add_~i~0 % 256); 4741#L78-1 assume !(3 == mp_add_~i~0 % 256); 4739#L75-1 assume mp_add_~i~0 % 256 < mp_add_~nb~0 % 256; 4733#L82 assume 0 == mp_add_~i~0 % 256;mp_add_~partial_sum~0 := mp_add_~partial_sum~0 % 65536 + mp_add_~b0~0 % 256; 4736#L82-2 assume !(1 == mp_add_~i~0 % 256); 4734#L83-1 assume !(2 == mp_add_~i~0 % 256); 4730#L84-1 assume !(3 == mp_add_~i~0 % 256); 4731#L81 assume mp_add_~partial_sum~0 % 65536 > 255;mp_add_~partial_sum~0 := ~bitwiseAnd(mp_add_~partial_sum~0 % 65536, 255);mp_add_~carry~0 := 1; 4909#L87-1 [2021-10-21 20:01:04,167 INFO L793 eck$LassoCheckResult]: Loop: 4909#L87-1 assume 0 == mp_add_~i~0 % 256;mp_add_~r0~0 := mp_add_~partial_sum~0; 4787#L91-1 assume !(1 == mp_add_~i~0 % 256); 4672#L92-1 assume !(2 == mp_add_~i~0 % 256); 4673#L93-1 assume !(3 == mp_add_~i~0 % 256); 4681#L94-1 mp_add_~i~0 := 1 + mp_add_~i~0 % 256; 4682#L72-2 assume !!((mp_add_~i~0 % 256 < mp_add_~na~0 % 256 || mp_add_~i~0 % 256 < mp_add_~nb~0 % 256) || 0 != mp_add_~carry~0 % 65536);mp_add_~partial_sum~0 := mp_add_~carry~0;mp_add_~carry~0 := 0; 4998#L75 assume !(mp_add_~i~0 % 256 < mp_add_~na~0 % 256); 4701#L75-1 assume !(mp_add_~i~0 % 256 < mp_add_~nb~0 % 256); 5001#L81 assume mp_add_~partial_sum~0 % 65536 > 255;mp_add_~partial_sum~0 := ~bitwiseAnd(mp_add_~partial_sum~0 % 65536, 255);mp_add_~carry~0 := 1; 4677#L87-1 assume !(0 == mp_add_~i~0 % 256); 4678#L91-1 assume 1 == mp_add_~i~0 % 256;mp_add_~r1~0 := mp_add_~partial_sum~0; 4775#L92-1 assume !(2 == mp_add_~i~0 % 256); 4776#L93-1 assume !(3 == mp_add_~i~0 % 256); 4959#L94-1 mp_add_~i~0 := 1 + mp_add_~i~0 % 256; 4958#L72-2 assume !!((mp_add_~i~0 % 256 < mp_add_~na~0 % 256 || mp_add_~i~0 % 256 < mp_add_~nb~0 % 256) || 0 != mp_add_~carry~0 % 65536);mp_add_~partial_sum~0 := mp_add_~carry~0;mp_add_~carry~0 := 0; 4956#L75 assume !(mp_add_~i~0 % 256 < mp_add_~na~0 % 256); 4954#L75-1 assume !(mp_add_~i~0 % 256 < mp_add_~nb~0 % 256); 4955#L81 assume mp_add_~partial_sum~0 % 65536 > 255;mp_add_~partial_sum~0 := ~bitwiseAnd(mp_add_~partial_sum~0 % 65536, 255);mp_add_~carry~0 := 1; 4889#L87-1 assume !(0 == mp_add_~i~0 % 256); 4885#L91-1 assume !(1 == mp_add_~i~0 % 256); 4833#L92-1 assume 2 == mp_add_~i~0 % 256;mp_add_~r2~0 := mp_add_~partial_sum~0; 4832#L93-1 assume !(3 == mp_add_~i~0 % 256); 4829#L94-1 mp_add_~i~0 := 1 + mp_add_~i~0 % 256; 4717#L72-2 assume !!((mp_add_~i~0 % 256 < mp_add_~na~0 % 256 || mp_add_~i~0 % 256 < mp_add_~nb~0 % 256) || 0 != mp_add_~carry~0 % 65536);mp_add_~partial_sum~0 := mp_add_~carry~0;mp_add_~carry~0 := 0; 4718#L75 assume mp_add_~i~0 % 256 < mp_add_~na~0 % 256; 4822#L76 assume 0 == mp_add_~i~0 % 256;mp_add_~partial_sum~0 := mp_add_~partial_sum~0 % 65536 + mp_add_~a0~0 % 256; 4823#L76-2 assume !(1 == mp_add_~i~0 % 256); 4972#L77-1 assume !(2 == mp_add_~i~0 % 256); 4969#L78-1 assume !(3 == mp_add_~i~0 % 256); 4964#L75-1 assume !(mp_add_~i~0 % 256 < mp_add_~nb~0 % 256); 4960#L81 assume mp_add_~partial_sum~0 % 65536 > 255;mp_add_~partial_sum~0 := ~bitwiseAnd(mp_add_~partial_sum~0 % 65536, 255);mp_add_~carry~0 := 1; 4909#L87-1 [2021-10-21 20:01:04,168 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:01:04,168 INFO L82 PathProgramCache]: Analyzing trace with hash 389365736, now seen corresponding path program 6 times [2021-10-21 20:01:04,168 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:01:04,168 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1816161358] [2021-10-21 20:01:04,168 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:01:04,168 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:01:04,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:01:04,182 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 20:01:04,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:01:04,200 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 20:01:04,201 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:01:04,201 INFO L82 PathProgramCache]: Analyzing trace with hash 856847662, now seen corresponding path program 1 times [2021-10-21 20:01:04,201 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:01:04,201 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2045227796] [2021-10-21 20:01:04,201 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:01:04,201 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:01:04,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:01:04,242 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 20:01:04,242 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 20:01:04,242 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2045227796] [2021-10-21 20:01:04,242 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2045227796] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-21 20:01:04,243 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-21 20:01:04,243 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-21 20:01:04,243 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1991027033] [2021-10-21 20:01:04,243 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-10-21 20:01:04,243 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 20:01:04,244 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-21 20:01:04,244 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-21 20:01:04,244 INFO L87 Difference]: Start difference. First operand 344 states and 498 transitions. cyclomatic complexity: 156 Second operand has 4 states, 4 states have (on average 7.75) internal successors, (31), 4 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:01:04,320 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 20:01:04,320 INFO L93 Difference]: Finished difference Result 409 states and 582 transitions. [2021-10-21 20:01:04,321 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-21 20:01:04,321 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 409 states and 582 transitions. [2021-10-21 20:01:04,324 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 373 [2021-10-21 20:01:04,328 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 409 states to 409 states and 582 transitions. [2021-10-21 20:01:04,328 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 409 [2021-10-21 20:01:04,329 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 409 [2021-10-21 20:01:04,329 INFO L73 IsDeterministic]: Start isDeterministic. Operand 409 states and 582 transitions. [2021-10-21 20:01:04,330 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-21 20:01:04,330 INFO L681 BuchiCegarLoop]: Abstraction has 409 states and 582 transitions. [2021-10-21 20:01:04,330 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 409 states and 582 transitions. [2021-10-21 20:01:04,336 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 409 to 344. [2021-10-21 20:01:04,337 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 344 states, 344 states have (on average 1.433139534883721) internal successors, (493), 343 states have internal predecessors, (493), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:01:04,338 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 344 states to 344 states and 493 transitions. [2021-10-21 20:01:04,338 INFO L704 BuchiCegarLoop]: Abstraction has 344 states and 493 transitions. [2021-10-21 20:01:04,338 INFO L587 BuchiCegarLoop]: Abstraction has 344 states and 493 transitions. [2021-10-21 20:01:04,338 INFO L425 BuchiCegarLoop]: ======== Iteration 14============ [2021-10-21 20:01:04,339 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 344 states and 493 transitions. [2021-10-21 20:01:04,341 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 308 [2021-10-21 20:01:04,341 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-21 20:01:04,341 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-21 20:01:04,342 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 20:01:04,342 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] [2021-10-21 20:01:04,342 INFO L791 eck$LassoCheckResult]: Stem: 5445#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string0.base, #t~string0.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string0.base, #t~string0.offset, 1);call write~init~int(0, #t~string0.base, 1 + #t~string0.offset, 1);call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(15); 5435#L-1 havoc main_#res;havoc main_#t~nondet3, main_#t~ret4, main_~a~0, main_~b~0, main_~r~1;havoc main_~a~0;havoc main_~b~0;havoc main_~r~1;main_~b~0 := main_#t~nondet3;havoc main_#t~nondet3;main_~a~0 := 234770789;mp_add_#in~a, mp_add_#in~b := main_~a~0, main_~b~0;havoc mp_add_#res;havoc mp_add_~a, mp_add_~b, mp_add_~a0~0, mp_add_~a1~0, mp_add_~a2~0, mp_add_~a3~0, mp_add_~b0~0, mp_add_~b1~0, mp_add_~b2~0, mp_add_~b3~0, mp_add_~r0~0, mp_add_~r1~0, mp_add_~r2~0, mp_add_~r3~0, mp_add_~carry~0, mp_add_~partial_sum~0, mp_add_~r~0, mp_add_~i~0, mp_add_~na~0, mp_add_~nb~0;mp_add_~a := mp_add_#in~a;mp_add_~b := mp_add_#in~b;havoc mp_add_~a0~0;havoc mp_add_~a1~0;havoc mp_add_~a2~0;havoc mp_add_~a3~0;havoc mp_add_~b0~0;havoc mp_add_~b1~0;havoc mp_add_~b2~0;havoc mp_add_~b3~0;havoc mp_add_~r0~0;havoc mp_add_~r1~0;havoc mp_add_~r2~0;havoc mp_add_~r3~0;havoc mp_add_~carry~0;havoc mp_add_~partial_sum~0;havoc mp_add_~r~0;havoc mp_add_~i~0;havoc mp_add_~na~0;havoc mp_add_~nb~0;mp_add_~a0~0 := mp_add_~a;mp_add_~a1~0 := mp_add_~a / 256;mp_add_~a2~0 := mp_add_~a / 65536;mp_add_~a3~0 := mp_add_~a / 16777216;mp_add_~b0~0 := mp_add_~b;mp_add_~b1~0 := mp_add_~b / 256;mp_add_~b2~0 := mp_add_~b / 65536;mp_add_~b3~0 := mp_add_~b / 16777216;mp_add_~na~0 := 4; 5427#L51 assume !(0 == mp_add_~a3~0 % 256); 5428#L51-1 mp_add_~nb~0 := 4; 5429#L61 assume !(0 == mp_add_~b3~0 % 256); 5430#L61-1 mp_add_~carry~0 := 0;mp_add_~i~0 := 0; 5749#L72-2 assume !!((mp_add_~i~0 % 256 < mp_add_~na~0 % 256 || mp_add_~i~0 % 256 < mp_add_~nb~0 % 256) || 0 != mp_add_~carry~0 % 65536);mp_add_~partial_sum~0 := mp_add_~carry~0;mp_add_~carry~0 := 0; 5747#L75 assume mp_add_~i~0 % 256 < mp_add_~na~0 % 256; 5746#L76 assume 0 == mp_add_~i~0 % 256;mp_add_~partial_sum~0 := mp_add_~partial_sum~0 % 65536 + mp_add_~a0~0 % 256; 5448#L76-2 assume !(1 == mp_add_~i~0 % 256); 5449#L77-1 assume !(2 == mp_add_~i~0 % 256); 5750#L78-1 assume !(3 == mp_add_~i~0 % 256); 5694#L75-1 assume mp_add_~i~0 % 256 < mp_add_~nb~0 % 256; 5693#L82 assume 0 == mp_add_~i~0 % 256;mp_add_~partial_sum~0 := mp_add_~partial_sum~0 % 65536 + mp_add_~b0~0 % 256; 5692#L82-2 assume !(1 == mp_add_~i~0 % 256); 5691#L83-1 assume !(2 == mp_add_~i~0 % 256); 5689#L84-1 assume !(3 == mp_add_~i~0 % 256); 5687#L81 assume mp_add_~partial_sum~0 % 65536 > 255;mp_add_~partial_sum~0 := ~bitwiseAnd(mp_add_~partial_sum~0 % 65536, 255);mp_add_~carry~0 := 1; 5681#L87-1 [2021-10-21 20:01:04,342 INFO L793 eck$LassoCheckResult]: Loop: 5681#L87-1 assume 0 == mp_add_~i~0 % 256;mp_add_~r0~0 := mp_add_~partial_sum~0; 5678#L91-1 assume !(1 == mp_add_~i~0 % 256); 5675#L92-1 assume !(2 == mp_add_~i~0 % 256); 5672#L93-1 assume !(3 == mp_add_~i~0 % 256); 5670#L94-1 mp_add_~i~0 := 1 + mp_add_~i~0 % 256; 5669#L72-2 assume !!((mp_add_~i~0 % 256 < mp_add_~na~0 % 256 || mp_add_~i~0 % 256 < mp_add_~nb~0 % 256) || 0 != mp_add_~carry~0 % 65536);mp_add_~partial_sum~0 := mp_add_~carry~0;mp_add_~carry~0 := 0; 5666#L75 assume !(mp_add_~i~0 % 256 < mp_add_~na~0 % 256); 5667#L75-1 assume !(mp_add_~i~0 % 256 < mp_add_~nb~0 % 256); 5454#L81 assume !(mp_add_~partial_sum~0 % 65536 > 255); 5436#L87-1 assume !(0 == mp_add_~i~0 % 256); 5437#L91-1 assume 1 == mp_add_~i~0 % 256;mp_add_~r1~0 := mp_add_~partial_sum~0; 5491#L92-1 assume !(2 == mp_add_~i~0 % 256); 5504#L93-1 assume !(3 == mp_add_~i~0 % 256); 5502#L94-1 mp_add_~i~0 := 1 + mp_add_~i~0 % 256; 5481#L72-2 assume !!((mp_add_~i~0 % 256 < mp_add_~na~0 % 256 || mp_add_~i~0 % 256 < mp_add_~nb~0 % 256) || 0 != mp_add_~carry~0 % 65536);mp_add_~partial_sum~0 := mp_add_~carry~0;mp_add_~carry~0 := 0; 5482#L75 assume !(mp_add_~i~0 % 256 < mp_add_~na~0 % 256); 5580#L75-1 assume !(mp_add_~i~0 % 256 < mp_add_~nb~0 % 256); 5554#L81 assume !(mp_add_~partial_sum~0 % 65536 > 255); 5548#L87-1 assume !(0 == mp_add_~i~0 % 256); 5492#L91-1 assume !(1 == mp_add_~i~0 % 256); 5488#L92-1 assume !(2 == mp_add_~i~0 % 256); 5486#L93-1 assume 3 == mp_add_~i~0 % 256;mp_add_~r3~0 := mp_add_~partial_sum~0; 5485#L94-1 mp_add_~i~0 := 1 + mp_add_~i~0 % 256; 5479#L72-2 assume !!((mp_add_~i~0 % 256 < mp_add_~na~0 % 256 || mp_add_~i~0 % 256 < mp_add_~nb~0 % 256) || 0 != mp_add_~carry~0 % 65536);mp_add_~partial_sum~0 := mp_add_~carry~0;mp_add_~carry~0 := 0; 5480#L75 assume mp_add_~i~0 % 256 < mp_add_~na~0 % 256; 5530#L76 assume !(0 == mp_add_~i~0 % 256); 5566#L76-2 assume 1 == mp_add_~i~0 % 256;mp_add_~partial_sum~0 := mp_add_~partial_sum~0 % 65536 + mp_add_~a1~0 % 256; 5450#L77-1 assume !(2 == mp_add_~i~0 % 256); 5451#L78-1 assume !(3 == mp_add_~i~0 % 256); 5459#L75-1 assume mp_add_~i~0 % 256 < mp_add_~nb~0 % 256; 5466#L82 assume 0 == mp_add_~i~0 % 256;mp_add_~partial_sum~0 := mp_add_~partial_sum~0 % 65536 + mp_add_~b0~0 % 256; 5643#L82-2 assume !(1 == mp_add_~i~0 % 256); 5698#L83-1 assume !(2 == mp_add_~i~0 % 256); 5690#L84-1 assume !(3 == mp_add_~i~0 % 256); 5686#L81 assume mp_add_~partial_sum~0 % 65536 > 255;mp_add_~partial_sum~0 := ~bitwiseAnd(mp_add_~partial_sum~0 % 65536, 255);mp_add_~carry~0 := 1; 5681#L87-1 [2021-10-21 20:01:04,343 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:01:04,343 INFO L82 PathProgramCache]: Analyzing trace with hash 389365736, now seen corresponding path program 7 times [2021-10-21 20:01:04,343 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:01:04,343 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1978713544] [2021-10-21 20:01:04,343 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:01:04,343 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:01:04,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:01:04,357 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 20:01:04,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:01:04,374 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 20:01:04,375 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:01:04,375 INFO L82 PathProgramCache]: Analyzing trace with hash 1265935866, now seen corresponding path program 1 times [2021-10-21 20:01:04,375 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:01:04,375 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1878707701] [2021-10-21 20:01:04,375 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:01:04,376 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:01:04,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:01:04,396 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2021-10-21 20:01:04,396 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 20:01:04,396 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1878707701] [2021-10-21 20:01:04,397 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1878707701] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-21 20:01:04,397 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-21 20:01:04,397 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-21 20:01:04,397 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [444248631] [2021-10-21 20:01:04,397 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-10-21 20:01:04,397 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 20:01:04,398 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-21 20:01:04,398 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-21 20:01:04,398 INFO L87 Difference]: Start difference. First operand 344 states and 493 transitions. cyclomatic complexity: 151 Second operand has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:01:04,479 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 20:01:04,479 INFO L93 Difference]: Finished difference Result 347 states and 478 transitions. [2021-10-21 20:01:04,479 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-21 20:01:04,480 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 347 states and 478 transitions. [2021-10-21 20:01:04,483 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 311 [2021-10-21 20:01:04,486 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 347 states to 347 states and 478 transitions. [2021-10-21 20:01:04,486 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 347 [2021-10-21 20:01:04,486 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 347 [2021-10-21 20:01:04,487 INFO L73 IsDeterministic]: Start isDeterministic. Operand 347 states and 478 transitions. [2021-10-21 20:01:04,487 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-21 20:01:04,487 INFO L681 BuchiCegarLoop]: Abstraction has 347 states and 478 transitions. [2021-10-21 20:01:04,488 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 347 states and 478 transitions. [2021-10-21 20:01:04,492 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 347 to 311. [2021-10-21 20:01:04,493 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 311 states, 311 states have (on average 1.369774919614148) internal successors, (426), 310 states have internal predecessors, (426), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:01:04,495 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 311 states to 311 states and 426 transitions. [2021-10-21 20:01:04,495 INFO L704 BuchiCegarLoop]: Abstraction has 311 states and 426 transitions. [2021-10-21 20:01:04,495 INFO L587 BuchiCegarLoop]: Abstraction has 311 states and 426 transitions. [2021-10-21 20:01:04,495 INFO L425 BuchiCegarLoop]: ======== Iteration 15============ [2021-10-21 20:01:04,495 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 311 states and 426 transitions. [2021-10-21 20:01:04,497 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 275 [2021-10-21 20:01:04,497 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-21 20:01:04,497 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-21 20:01:04,498 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 20:01:04,498 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] [2021-10-21 20:01:04,498 INFO L791 eck$LassoCheckResult]: Stem: 6140#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string0.base, #t~string0.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string0.base, #t~string0.offset, 1);call write~init~int(0, #t~string0.base, 1 + #t~string0.offset, 1);call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(15); 6130#L-1 havoc main_#res;havoc main_#t~nondet3, main_#t~ret4, main_~a~0, main_~b~0, main_~r~1;havoc main_~a~0;havoc main_~b~0;havoc main_~r~1;main_~b~0 := main_#t~nondet3;havoc main_#t~nondet3;main_~a~0 := 234770789;mp_add_#in~a, mp_add_#in~b := main_~a~0, main_~b~0;havoc mp_add_#res;havoc mp_add_~a, mp_add_~b, mp_add_~a0~0, mp_add_~a1~0, mp_add_~a2~0, mp_add_~a3~0, mp_add_~b0~0, mp_add_~b1~0, mp_add_~b2~0, mp_add_~b3~0, mp_add_~r0~0, mp_add_~r1~0, mp_add_~r2~0, mp_add_~r3~0, mp_add_~carry~0, mp_add_~partial_sum~0, mp_add_~r~0, mp_add_~i~0, mp_add_~na~0, mp_add_~nb~0;mp_add_~a := mp_add_#in~a;mp_add_~b := mp_add_#in~b;havoc mp_add_~a0~0;havoc mp_add_~a1~0;havoc mp_add_~a2~0;havoc mp_add_~a3~0;havoc mp_add_~b0~0;havoc mp_add_~b1~0;havoc mp_add_~b2~0;havoc mp_add_~b3~0;havoc mp_add_~r0~0;havoc mp_add_~r1~0;havoc mp_add_~r2~0;havoc mp_add_~r3~0;havoc mp_add_~carry~0;havoc mp_add_~partial_sum~0;havoc mp_add_~r~0;havoc mp_add_~i~0;havoc mp_add_~na~0;havoc mp_add_~nb~0;mp_add_~a0~0 := mp_add_~a;mp_add_~a1~0 := mp_add_~a / 256;mp_add_~a2~0 := mp_add_~a / 65536;mp_add_~a3~0 := mp_add_~a / 16777216;mp_add_~b0~0 := mp_add_~b;mp_add_~b1~0 := mp_add_~b / 256;mp_add_~b2~0 := mp_add_~b / 65536;mp_add_~b3~0 := mp_add_~b / 16777216;mp_add_~na~0 := 4; 6121#L51 assume !(0 == mp_add_~a3~0 % 256); 6122#L51-1 mp_add_~nb~0 := 4; 6123#L61 assume !(0 == mp_add_~b3~0 % 256); 6124#L61-1 mp_add_~carry~0 := 0;mp_add_~i~0 := 0; 6419#L72-2 assume !!((mp_add_~i~0 % 256 < mp_add_~na~0 % 256 || mp_add_~i~0 % 256 < mp_add_~nb~0 % 256) || 0 != mp_add_~carry~0 % 65536);mp_add_~partial_sum~0 := mp_add_~carry~0;mp_add_~carry~0 := 0; 6418#L75 assume mp_add_~i~0 % 256 < mp_add_~na~0 % 256; 6417#L76 assume 0 == mp_add_~i~0 % 256;mp_add_~partial_sum~0 := mp_add_~partial_sum~0 % 65536 + mp_add_~a0~0 % 256; 6416#L76-2 assume !(1 == mp_add_~i~0 % 256); 6415#L77-1 assume !(2 == mp_add_~i~0 % 256); 6413#L78-1 assume !(3 == mp_add_~i~0 % 256); 6324#L75-1 assume mp_add_~i~0 % 256 < mp_add_~nb~0 % 256; 6323#L82 assume 0 == mp_add_~i~0 % 256;mp_add_~partial_sum~0 := mp_add_~partial_sum~0 % 65536 + mp_add_~b0~0 % 256; 6321#L82-2 assume !(1 == mp_add_~i~0 % 256); 6319#L83-1 assume !(2 == mp_add_~i~0 % 256); 6317#L84-1 assume !(3 == mp_add_~i~0 % 256); 6315#L81 assume mp_add_~partial_sum~0 % 65536 > 255;mp_add_~partial_sum~0 := ~bitwiseAnd(mp_add_~partial_sum~0 % 65536, 255);mp_add_~carry~0 := 1; 6314#L87-1 [2021-10-21 20:01:04,498 INFO L793 eck$LassoCheckResult]: Loop: 6314#L87-1 assume 0 == mp_add_~i~0 % 256;mp_add_~r0~0 := mp_add_~partial_sum~0; 6313#L91-1 assume !(1 == mp_add_~i~0 % 256); 6312#L92-1 assume !(2 == mp_add_~i~0 % 256); 6311#L93-1 assume !(3 == mp_add_~i~0 % 256); 6310#L94-1 mp_add_~i~0 := 1 + mp_add_~i~0 % 256; 6309#L72-2 assume !!((mp_add_~i~0 % 256 < mp_add_~na~0 % 256 || mp_add_~i~0 % 256 < mp_add_~nb~0 % 256) || 0 != mp_add_~carry~0 % 65536);mp_add_~partial_sum~0 := mp_add_~carry~0;mp_add_~carry~0 := 0; 6307#L75 assume !(mp_add_~i~0 % 256 < mp_add_~na~0 % 256); 6308#L75-1 assume !(mp_add_~i~0 % 256 < mp_add_~nb~0 % 256); 6163#L81 assume !(mp_add_~partial_sum~0 % 65536 > 255); 6234#L87-1 assume !(0 == mp_add_~i~0 % 256); 6206#L91-1 assume 1 == mp_add_~i~0 % 256;mp_add_~r1~0 := mp_add_~partial_sum~0; 6183#L92-1 assume !(2 == mp_add_~i~0 % 256); 6197#L93-1 assume !(3 == mp_add_~i~0 % 256); 6194#L94-1 mp_add_~i~0 := 1 + mp_add_~i~0 % 256; 6189#L72-2 assume !!((mp_add_~i~0 % 256 < mp_add_~na~0 % 256 || mp_add_~i~0 % 256 < mp_add_~nb~0 % 256) || 0 != mp_add_~carry~0 % 65536);mp_add_~partial_sum~0 := mp_add_~carry~0;mp_add_~carry~0 := 0; 6157#L75 assume !(mp_add_~i~0 % 256 < mp_add_~na~0 % 256); 6158#L75-1 assume !(mp_add_~i~0 % 256 < mp_add_~nb~0 % 256); 6147#L81 assume !(mp_add_~partial_sum~0 % 65536 > 255); 6148#L87-1 assume !(0 == mp_add_~i~0 % 256); 6182#L91-1 assume !(1 == mp_add_~i~0 % 256); 6180#L92-1 assume !(2 == mp_add_~i~0 % 256); 6177#L93-1 assume 3 == mp_add_~i~0 % 256;mp_add_~r3~0 := mp_add_~partial_sum~0; 6175#L94-1 mp_add_~i~0 := 1 + mp_add_~i~0 % 256; 6171#L72-2 assume !!((mp_add_~i~0 % 256 < mp_add_~na~0 % 256 || mp_add_~i~0 % 256 < mp_add_~nb~0 % 256) || 0 != mp_add_~carry~0 % 65536);mp_add_~partial_sum~0 := mp_add_~carry~0;mp_add_~carry~0 := 0; 6172#L75 assume mp_add_~i~0 % 256 < mp_add_~na~0 % 256; 6210#L76 assume 0 == mp_add_~i~0 % 256;mp_add_~partial_sum~0 := mp_add_~partial_sum~0 % 65536 + mp_add_~a0~0 % 256; 6278#L76-2 assume !(1 == mp_add_~i~0 % 256); 6244#L77-1 assume !(2 == mp_add_~i~0 % 256); 6245#L78-1 assume !(3 == mp_add_~i~0 % 256); 6240#L75-1 assume mp_add_~i~0 % 256 < mp_add_~nb~0 % 256; 6241#L82 assume 0 == mp_add_~i~0 % 256;mp_add_~partial_sum~0 := mp_add_~partial_sum~0 % 65536 + mp_add_~b0~0 % 256; 6322#L82-2 assume !(1 == mp_add_~i~0 % 256); 6320#L83-1 assume !(2 == mp_add_~i~0 % 256); 6318#L84-1 assume !(3 == mp_add_~i~0 % 256); 6316#L81 assume mp_add_~partial_sum~0 % 65536 > 255;mp_add_~partial_sum~0 := ~bitwiseAnd(mp_add_~partial_sum~0 % 65536, 255);mp_add_~carry~0 := 1; 6314#L87-1 [2021-10-21 20:01:04,499 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:01:04,499 INFO L82 PathProgramCache]: Analyzing trace with hash 389365736, now seen corresponding path program 8 times [2021-10-21 20:01:04,499 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:01:04,499 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1075271522] [2021-10-21 20:01:04,499 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:01:04,499 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:01:04,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:01:04,513 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 20:01:04,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:01:04,530 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 20:01:04,531 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:01:04,531 INFO L82 PathProgramCache]: Analyzing trace with hash -1955946050, now seen corresponding path program 1 times [2021-10-21 20:01:04,531 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:01:04,531 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [335854333] [2021-10-21 20:01:04,531 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:01:04,531 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:01:04,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:01:04,622 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 24 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-21 20:01:04,622 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 20:01:04,622 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [335854333] [2021-10-21 20:01:04,622 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [335854333] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 20:01:04,622 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [132302427] [2021-10-21 20:01:04,623 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:01:04,623 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-21 20:01:04,623 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:01:04,628 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-21 20:01:04,650 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-10-21 20:01:04,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:01:04,697 INFO L263 TraceCheckSpWp]: Trace formula consists of 69 conjuncts, 6 conjunts are in the unsatisfiable core [2021-10-21 20:01:04,699 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 20:01:04,810 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 23 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-10-21 20:01:04,810 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [132302427] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 20:01:04,810 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-21 20:01:04,810 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 4] total 7 [2021-10-21 20:01:04,810 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [493155472] [2021-10-21 20:01:04,811 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-10-21 20:01:04,811 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 20:01:04,811 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-10-21 20:01:04,811 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-10-21 20:01:04,812 INFO L87 Difference]: Start difference. First operand 311 states and 426 transitions. cyclomatic complexity: 117 Second operand has 7 states, 7 states have (on average 7.428571428571429) internal successors, (52), 7 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:01:05,424 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 20:01:05,424 INFO L93 Difference]: Finished difference Result 414 states and 525 transitions. [2021-10-21 20:01:05,425 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-10-21 20:01:05,425 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 414 states and 525 transitions. [2021-10-21 20:01:05,428 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 373 [2021-10-21 20:01:05,432 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 414 states to 414 states and 525 transitions. [2021-10-21 20:01:05,432 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 414 [2021-10-21 20:01:05,433 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 414 [2021-10-21 20:01:05,433 INFO L73 IsDeterministic]: Start isDeterministic. Operand 414 states and 525 transitions. [2021-10-21 20:01:05,434 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-21 20:01:05,434 INFO L681 BuchiCegarLoop]: Abstraction has 414 states and 525 transitions. [2021-10-21 20:01:05,434 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 414 states and 525 transitions. [2021-10-21 20:01:05,439 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 414 to 279. [2021-10-21 20:01:05,440 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 279 states, 279 states have (on average 1.3082437275985663) internal successors, (365), 278 states have internal predecessors, (365), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:01:05,441 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 279 states to 279 states and 365 transitions. [2021-10-21 20:01:05,441 INFO L704 BuchiCegarLoop]: Abstraction has 279 states and 365 transitions. [2021-10-21 20:01:05,441 INFO L587 BuchiCegarLoop]: Abstraction has 279 states and 365 transitions. [2021-10-21 20:01:05,441 INFO L425 BuchiCegarLoop]: ======== Iteration 16============ [2021-10-21 20:01:05,441 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 279 states and 365 transitions. [2021-10-21 20:01:05,443 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 243 [2021-10-21 20:01:05,443 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-21 20:01:05,443 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-21 20:01:05,444 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 20:01:05,444 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] [2021-10-21 20:01:05,444 INFO L791 eck$LassoCheckResult]: Stem: 7015#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string0.base, #t~string0.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string0.base, #t~string0.offset, 1);call write~init~int(0, #t~string0.base, 1 + #t~string0.offset, 1);call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(15); 7003#L-1 havoc main_#res;havoc main_#t~nondet3, main_#t~ret4, main_~a~0, main_~b~0, main_~r~1;havoc main_~a~0;havoc main_~b~0;havoc main_~r~1;main_~b~0 := main_#t~nondet3;havoc main_#t~nondet3;main_~a~0 := 234770789;mp_add_#in~a, mp_add_#in~b := main_~a~0, main_~b~0;havoc mp_add_#res;havoc mp_add_~a, mp_add_~b, mp_add_~a0~0, mp_add_~a1~0, mp_add_~a2~0, mp_add_~a3~0, mp_add_~b0~0, mp_add_~b1~0, mp_add_~b2~0, mp_add_~b3~0, mp_add_~r0~0, mp_add_~r1~0, mp_add_~r2~0, mp_add_~r3~0, mp_add_~carry~0, mp_add_~partial_sum~0, mp_add_~r~0, mp_add_~i~0, mp_add_~na~0, mp_add_~nb~0;mp_add_~a := mp_add_#in~a;mp_add_~b := mp_add_#in~b;havoc mp_add_~a0~0;havoc mp_add_~a1~0;havoc mp_add_~a2~0;havoc mp_add_~a3~0;havoc mp_add_~b0~0;havoc mp_add_~b1~0;havoc mp_add_~b2~0;havoc mp_add_~b3~0;havoc mp_add_~r0~0;havoc mp_add_~r1~0;havoc mp_add_~r2~0;havoc mp_add_~r3~0;havoc mp_add_~carry~0;havoc mp_add_~partial_sum~0;havoc mp_add_~r~0;havoc mp_add_~i~0;havoc mp_add_~na~0;havoc mp_add_~nb~0;mp_add_~a0~0 := mp_add_~a;mp_add_~a1~0 := mp_add_~a / 256;mp_add_~a2~0 := mp_add_~a / 65536;mp_add_~a3~0 := mp_add_~a / 16777216;mp_add_~b0~0 := mp_add_~b;mp_add_~b1~0 := mp_add_~b / 256;mp_add_~b2~0 := mp_add_~b / 65536;mp_add_~b3~0 := mp_add_~b / 16777216;mp_add_~na~0 := 4; 6994#L51 assume !(0 == mp_add_~a3~0 % 256); 6995#L51-1 mp_add_~nb~0 := 4; 6996#L61 assume !(0 == mp_add_~b3~0 % 256); 6997#L61-1 mp_add_~carry~0 := 0;mp_add_~i~0 := 0; 7011#L72-2 assume !!((mp_add_~i~0 % 256 < mp_add_~na~0 % 256 || mp_add_~i~0 % 256 < mp_add_~nb~0 % 256) || 0 != mp_add_~carry~0 % 65536);mp_add_~partial_sum~0 := mp_add_~carry~0;mp_add_~carry~0 := 0; 7233#L75 assume mp_add_~i~0 % 256 < mp_add_~na~0 % 256; 7232#L76 assume 0 == mp_add_~i~0 % 256;mp_add_~partial_sum~0 := mp_add_~partial_sum~0 % 65536 + mp_add_~a0~0 % 256; 7231#L76-2 assume !(1 == mp_add_~i~0 % 256); 7229#L77-1 assume !(2 == mp_add_~i~0 % 256); 7227#L78-1 assume !(3 == mp_add_~i~0 % 256); 7225#L75-1 assume mp_add_~i~0 % 256 < mp_add_~nb~0 % 256; 7219#L82 assume 0 == mp_add_~i~0 % 256;mp_add_~partial_sum~0 := mp_add_~partial_sum~0 % 65536 + mp_add_~b0~0 % 256; 7222#L82-2 assume !(1 == mp_add_~i~0 % 256); 7220#L83-1 assume !(2 == mp_add_~i~0 % 256); 7216#L84-1 assume !(3 == mp_add_~i~0 % 256); 7217#L81 assume mp_add_~partial_sum~0 % 65536 > 255;mp_add_~partial_sum~0 := ~bitwiseAnd(mp_add_~partial_sum~0 % 65536, 255);mp_add_~carry~0 := 1; 7244#L87-1 [2021-10-21 20:01:05,444 INFO L793 eck$LassoCheckResult]: Loop: 7244#L87-1 assume 0 == mp_add_~i~0 % 256;mp_add_~r0~0 := mp_add_~partial_sum~0; 7242#L91-1 assume !(1 == mp_add_~i~0 % 256); 7211#L92-1 assume !(2 == mp_add_~i~0 % 256); 7209#L93-1 assume !(3 == mp_add_~i~0 % 256); 7210#L94-1 mp_add_~i~0 := 1 + mp_add_~i~0 % 256; 7205#L72-2 assume !!((mp_add_~i~0 % 256 < mp_add_~na~0 % 256 || mp_add_~i~0 % 256 < mp_add_~nb~0 % 256) || 0 != mp_add_~carry~0 % 65536);mp_add_~partial_sum~0 := mp_add_~carry~0;mp_add_~carry~0 := 0; 7206#L75 assume !(mp_add_~i~0 % 256 < mp_add_~na~0 % 256); 7202#L75-1 assume mp_add_~i~0 % 256 < mp_add_~nb~0 % 256; 7201#L82 assume !(0 == mp_add_~i~0 % 256); 7200#L82-2 assume 1 == mp_add_~i~0 % 256;mp_add_~partial_sum~0 := mp_add_~partial_sum~0 % 65536 + mp_add_~b1~0 % 256; 7181#L83-1 assume !(2 == mp_add_~i~0 % 256); 7198#L84-1 assume !(3 == mp_add_~i~0 % 256); 7196#L81 assume mp_add_~partial_sum~0 % 65536 > 255;mp_add_~partial_sum~0 := ~bitwiseAnd(mp_add_~partial_sum~0 % 65536, 255);mp_add_~carry~0 := 1; 7195#L87-1 assume !(0 == mp_add_~i~0 % 256); 7194#L91-1 assume 1 == mp_add_~i~0 % 256;mp_add_~r1~0 := mp_add_~partial_sum~0; 7094#L92-1 assume !(2 == mp_add_~i~0 % 256); 7191#L93-1 assume !(3 == mp_add_~i~0 % 256); 7189#L94-1 mp_add_~i~0 := 1 + mp_add_~i~0 % 256; 7187#L72-2 assume !!((mp_add_~i~0 % 256 < mp_add_~na~0 % 256 || mp_add_~i~0 % 256 < mp_add_~nb~0 % 256) || 0 != mp_add_~carry~0 % 65536);mp_add_~partial_sum~0 := mp_add_~carry~0;mp_add_~carry~0 := 0; 7185#L75 assume !(mp_add_~i~0 % 256 < mp_add_~na~0 % 256); 7167#L75-1 assume !(mp_add_~i~0 % 256 < mp_add_~nb~0 % 256); 7183#L81 assume !(mp_add_~partial_sum~0 % 65536 > 255); 7158#L87-1 assume !(0 == mp_add_~i~0 % 256); 7000#L91-1 assume !(1 == mp_add_~i~0 % 256); 7001#L92-1 assume 2 == mp_add_~i~0 % 256;mp_add_~r2~0 := mp_add_~partial_sum~0; 7002#L93-1 assume !(3 == mp_add_~i~0 % 256); 7048#L94-1 mp_add_~i~0 := 1 + mp_add_~i~0 % 256; 7046#L72-2 assume !!((mp_add_~i~0 % 256 < mp_add_~na~0 % 256 || mp_add_~i~0 % 256 < mp_add_~nb~0 % 256) || 0 != mp_add_~carry~0 % 65536);mp_add_~partial_sum~0 := mp_add_~carry~0;mp_add_~carry~0 := 0; 7047#L75 assume mp_add_~i~0 % 256 < mp_add_~na~0 % 256; 7129#L76 assume 0 == mp_add_~i~0 % 256;mp_add_~partial_sum~0 := mp_add_~partial_sum~0 % 65536 + mp_add_~a0~0 % 256; 7130#L76-2 assume !(1 == mp_add_~i~0 % 256); 7252#L77-1 assume !(2 == mp_add_~i~0 % 256); 7251#L78-1 assume !(3 == mp_add_~i~0 % 256); 7248#L75-1 assume mp_add_~i~0 % 256 < mp_add_~nb~0 % 256; 7249#L82 assume 0 == mp_add_~i~0 % 256;mp_add_~partial_sum~0 := mp_add_~partial_sum~0 % 65536 + mp_add_~b0~0 % 256; 7258#L82-2 assume !(1 == mp_add_~i~0 % 256); 7256#L83-1 assume !(2 == mp_add_~i~0 % 256); 7254#L84-1 assume !(3 == mp_add_~i~0 % 256); 7245#L81 assume mp_add_~partial_sum~0 % 65536 > 255;mp_add_~partial_sum~0 := ~bitwiseAnd(mp_add_~partial_sum~0 % 65536, 255);mp_add_~carry~0 := 1; 7244#L87-1 [2021-10-21 20:01:05,445 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:01:05,445 INFO L82 PathProgramCache]: Analyzing trace with hash 389365736, now seen corresponding path program 9 times [2021-10-21 20:01:05,445 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:01:05,445 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [565420653] [2021-10-21 20:01:05,445 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:01:05,445 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:01:05,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:01:05,459 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 20:01:05,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:01:05,475 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 20:01:05,476 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:01:05,476 INFO L82 PathProgramCache]: Analyzing trace with hash -593187128, now seen corresponding path program 1 times [2021-10-21 20:01:05,476 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:01:05,476 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1298240829] [2021-10-21 20:01:05,476 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:01:05,476 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:01:05,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:01:05,565 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 23 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 20:01:05,565 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 20:01:05,565 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1298240829] [2021-10-21 20:01:05,565 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1298240829] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 20:01:05,566 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1968589989] [2021-10-21 20:01:05,566 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:01:05,566 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-21 20:01:05,566 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:01:05,616 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-21 20:01:05,619 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-10-21 20:01:05,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:01:05,693 INFO L263 TraceCheckSpWp]: Trace formula consists of 78 conjuncts, 5 conjunts are in the unsatisfiable core [2021-10-21 20:01:05,695 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 20:01:05,895 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2021-10-21 20:01:05,895 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1968589989] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-21 20:01:05,895 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-10-21 20:01:05,895 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [7] total 9 [2021-10-21 20:01:05,896 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [722148914] [2021-10-21 20:01:05,896 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-10-21 20:01:05,896 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 20:01:05,896 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-21 20:01:05,897 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2021-10-21 20:01:05,897 INFO L87 Difference]: Start difference. First operand 279 states and 365 transitions. cyclomatic complexity: 88 Second operand has 4 states, 4 states have (on average 8.0) internal successors, (32), 4 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:01:06,118 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 20:01:06,119 INFO L93 Difference]: Finished difference Result 348 states and 433 transitions. [2021-10-21 20:01:06,119 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-21 20:01:06,119 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 348 states and 433 transitions. [2021-10-21 20:01:06,122 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 312 [2021-10-21 20:01:06,125 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 348 states to 348 states and 433 transitions. [2021-10-21 20:01:06,125 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 348 [2021-10-21 20:01:06,126 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 348 [2021-10-21 20:01:06,126 INFO L73 IsDeterministic]: Start isDeterministic. Operand 348 states and 433 transitions. [2021-10-21 20:01:06,127 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-21 20:01:06,127 INFO L681 BuchiCegarLoop]: Abstraction has 348 states and 433 transitions. [2021-10-21 20:01:06,127 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 348 states and 433 transitions. [2021-10-21 20:01:06,132 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 348 to 292. [2021-10-21 20:01:06,132 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 292 states, 292 states have (on average 1.2671232876712328) internal successors, (370), 291 states have internal predecessors, (370), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:01:06,134 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 292 states to 292 states and 370 transitions. [2021-10-21 20:01:06,134 INFO L704 BuchiCegarLoop]: Abstraction has 292 states and 370 transitions. [2021-10-21 20:01:06,134 INFO L587 BuchiCegarLoop]: Abstraction has 292 states and 370 transitions. [2021-10-21 20:01:06,134 INFO L425 BuchiCegarLoop]: ======== Iteration 17============ [2021-10-21 20:01:06,134 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 292 states and 370 transitions. [2021-10-21 20:01:06,136 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 256 [2021-10-21 20:01:06,137 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-21 20:01:06,137 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-21 20:01:06,137 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 20:01:06,138 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 20:01:06,138 INFO L791 eck$LassoCheckResult]: Stem: 7768#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string0.base, #t~string0.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string0.base, #t~string0.offset, 1);call write~init~int(0, #t~string0.base, 1 + #t~string0.offset, 1);call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(15); 7758#L-1 havoc main_#res;havoc main_#t~nondet3, main_#t~ret4, main_~a~0, main_~b~0, main_~r~1;havoc main_~a~0;havoc main_~b~0;havoc main_~r~1;main_~b~0 := main_#t~nondet3;havoc main_#t~nondet3;main_~a~0 := 234770789;mp_add_#in~a, mp_add_#in~b := main_~a~0, main_~b~0;havoc mp_add_#res;havoc mp_add_~a, mp_add_~b, mp_add_~a0~0, mp_add_~a1~0, mp_add_~a2~0, mp_add_~a3~0, mp_add_~b0~0, mp_add_~b1~0, mp_add_~b2~0, mp_add_~b3~0, mp_add_~r0~0, mp_add_~r1~0, mp_add_~r2~0, mp_add_~r3~0, mp_add_~carry~0, mp_add_~partial_sum~0, mp_add_~r~0, mp_add_~i~0, mp_add_~na~0, mp_add_~nb~0;mp_add_~a := mp_add_#in~a;mp_add_~b := mp_add_#in~b;havoc mp_add_~a0~0;havoc mp_add_~a1~0;havoc mp_add_~a2~0;havoc mp_add_~a3~0;havoc mp_add_~b0~0;havoc mp_add_~b1~0;havoc mp_add_~b2~0;havoc mp_add_~b3~0;havoc mp_add_~r0~0;havoc mp_add_~r1~0;havoc mp_add_~r2~0;havoc mp_add_~r3~0;havoc mp_add_~carry~0;havoc mp_add_~partial_sum~0;havoc mp_add_~r~0;havoc mp_add_~i~0;havoc mp_add_~na~0;havoc mp_add_~nb~0;mp_add_~a0~0 := mp_add_~a;mp_add_~a1~0 := mp_add_~a / 256;mp_add_~a2~0 := mp_add_~a / 65536;mp_add_~a3~0 := mp_add_~a / 16777216;mp_add_~b0~0 := mp_add_~b;mp_add_~b1~0 := mp_add_~b / 256;mp_add_~b2~0 := mp_add_~b / 65536;mp_add_~b3~0 := mp_add_~b / 16777216;mp_add_~na~0 := 4; 7750#L51 assume !(0 == mp_add_~a3~0 % 256); 7751#L51-1 mp_add_~nb~0 := 4; 7752#L61 assume !(0 == mp_add_~b3~0 % 256); 7753#L61-1 mp_add_~carry~0 := 0;mp_add_~i~0 := 0; 8017#L72-2 assume !!((mp_add_~i~0 % 256 < mp_add_~na~0 % 256 || mp_add_~i~0 % 256 < mp_add_~nb~0 % 256) || 0 != mp_add_~carry~0 % 65536);mp_add_~partial_sum~0 := mp_add_~carry~0;mp_add_~carry~0 := 0; 8015#L75 assume mp_add_~i~0 % 256 < mp_add_~na~0 % 256; 8013#L76 assume 0 == mp_add_~i~0 % 256;mp_add_~partial_sum~0 := mp_add_~partial_sum~0 % 65536 + mp_add_~a0~0 % 256; 8011#L76-2 assume !(1 == mp_add_~i~0 % 256); 8009#L77-1 assume !(2 == mp_add_~i~0 % 256); 8006#L78-1 assume !(3 == mp_add_~i~0 % 256); 7991#L75-1 assume mp_add_~i~0 % 256 < mp_add_~nb~0 % 256; 7990#L82 assume 0 == mp_add_~i~0 % 256;mp_add_~partial_sum~0 := mp_add_~partial_sum~0 % 65536 + mp_add_~b0~0 % 256; 7989#L82-2 assume !(1 == mp_add_~i~0 % 256); 7988#L83-1 assume !(2 == mp_add_~i~0 % 256); 7987#L84-1 assume !(3 == mp_add_~i~0 % 256); 7964#L81 assume mp_add_~partial_sum~0 % 65536 > 255;mp_add_~partial_sum~0 := ~bitwiseAnd(mp_add_~partial_sum~0 % 65536, 255);mp_add_~carry~0 := 1; 7962#L87-1 [2021-10-21 20:01:06,138 INFO L793 eck$LassoCheckResult]: Loop: 7962#L87-1 assume 0 == mp_add_~i~0 % 256;mp_add_~r0~0 := mp_add_~partial_sum~0; 7960#L91-1 assume !(1 == mp_add_~i~0 % 256); 7959#L92-1 assume !(2 == mp_add_~i~0 % 256); 7957#L93-1 assume !(3 == mp_add_~i~0 % 256); 7955#L94-1 mp_add_~i~0 := 1 + mp_add_~i~0 % 256; 7953#L72-2 assume !!((mp_add_~i~0 % 256 < mp_add_~na~0 % 256 || mp_add_~i~0 % 256 < mp_add_~nb~0 % 256) || 0 != mp_add_~carry~0 % 65536);mp_add_~partial_sum~0 := mp_add_~carry~0;mp_add_~carry~0 := 0; 7952#L75 assume !(mp_add_~i~0 % 256 < mp_add_~na~0 % 256); 7927#L75-1 assume !(mp_add_~i~0 % 256 < mp_add_~nb~0 % 256); 7841#L81 assume !(mp_add_~partial_sum~0 % 65536 > 255); 7842#L87-1 assume !(0 == mp_add_~i~0 % 256); 7835#L91-1 assume 1 == mp_add_~i~0 % 256;mp_add_~r1~0 := mp_add_~partial_sum~0; 7815#L92-1 assume !(2 == mp_add_~i~0 % 256); 7827#L93-1 assume !(3 == mp_add_~i~0 % 256); 7828#L94-1 mp_add_~i~0 := 1 + mp_add_~i~0 % 256; 7817#L72-2 assume !!((mp_add_~i~0 % 256 < mp_add_~na~0 % 256 || mp_add_~i~0 % 256 < mp_add_~nb~0 % 256) || 0 != mp_add_~carry~0 % 65536);mp_add_~partial_sum~0 := mp_add_~carry~0;mp_add_~carry~0 := 0; 7818#L75 assume !(mp_add_~i~0 % 256 < mp_add_~na~0 % 256); 8030#L75-1 assume mp_add_~i~0 % 256 < mp_add_~nb~0 % 256; 8038#L82 assume !(0 == mp_add_~i~0 % 256); 8037#L82-2 assume !(1 == mp_add_~i~0 % 256); 8036#L83-1 assume 2 == mp_add_~i~0 % 256;mp_add_~partial_sum~0 := mp_add_~partial_sum~0 % 65536 + mp_add_~b2~0 % 256; 7780#L84-1 assume !(3 == mp_add_~i~0 % 256); 7774#L81 assume !(mp_add_~partial_sum~0 % 65536 > 255); 7759#L87-1 assume !(0 == mp_add_~i~0 % 256); 7760#L91-1 assume !(1 == mp_add_~i~0 % 256); 7821#L92-1 assume 2 == mp_add_~i~0 % 256;mp_add_~r2~0 := mp_add_~partial_sum~0; 7811#L93-1 assume !(3 == mp_add_~i~0 % 256); 7819#L94-1 mp_add_~i~0 := 1 + mp_add_~i~0 % 256; 7785#L72-2 assume !!((mp_add_~i~0 % 256 < mp_add_~na~0 % 256 || mp_add_~i~0 % 256 < mp_add_~nb~0 % 256) || 0 != mp_add_~carry~0 % 65536);mp_add_~partial_sum~0 := mp_add_~carry~0;mp_add_~carry~0 := 0; 7786#L75 assume !(mp_add_~i~0 % 256 < mp_add_~na~0 % 256); 7918#L75-1 assume mp_add_~i~0 % 256 < mp_add_~nb~0 % 256; 7917#L82 assume !(0 == mp_add_~i~0 % 256); 7916#L82-2 assume !(1 == mp_add_~i~0 % 256); 7915#L83-1 assume !(2 == mp_add_~i~0 % 256); 7914#L84-1 assume 3 == mp_add_~i~0 % 256;mp_add_~partial_sum~0 := mp_add_~partial_sum~0 % 65536 + mp_add_~b3~0 % 256; 7911#L81 assume !(mp_add_~partial_sum~0 % 65536 > 255); 7826#L87-1 assume !(0 == mp_add_~i~0 % 256); 7813#L91-1 assume !(1 == mp_add_~i~0 % 256); 7809#L92-1 assume !(2 == mp_add_~i~0 % 256); 7805#L93-1 assume 3 == mp_add_~i~0 % 256;mp_add_~r3~0 := mp_add_~partial_sum~0; 7803#L94-1 mp_add_~i~0 := 1 + mp_add_~i~0 % 256; 7800#L72-2 assume !!((mp_add_~i~0 % 256 < mp_add_~na~0 % 256 || mp_add_~i~0 % 256 < mp_add_~nb~0 % 256) || 0 != mp_add_~carry~0 % 65536);mp_add_~partial_sum~0 := mp_add_~carry~0;mp_add_~carry~0 := 0; 7801#L75 assume mp_add_~i~0 % 256 < mp_add_~na~0 % 256; 7908#L76 assume 0 == mp_add_~i~0 % 256;mp_add_~partial_sum~0 := mp_add_~partial_sum~0 % 65536 + mp_add_~a0~0 % 256; 7909#L76-2 assume !(1 == mp_add_~i~0 % 256); 7986#L77-1 assume !(2 == mp_add_~i~0 % 256); 7985#L78-1 assume !(3 == mp_add_~i~0 % 256); 7984#L75-1 assume mp_add_~i~0 % 256 < mp_add_~nb~0 % 256; 7970#L82 assume 0 == mp_add_~i~0 % 256;mp_add_~partial_sum~0 := mp_add_~partial_sum~0 % 65536 + mp_add_~b0~0 % 256; 7981#L82-2 assume !(1 == mp_add_~i~0 % 256); 7979#L83-1 assume !(2 == mp_add_~i~0 % 256); 7968#L84-1 assume !(3 == mp_add_~i~0 % 256); 7966#L81 assume mp_add_~partial_sum~0 % 65536 > 255;mp_add_~partial_sum~0 := ~bitwiseAnd(mp_add_~partial_sum~0 % 65536, 255);mp_add_~carry~0 := 1; 7962#L87-1 [2021-10-21 20:01:06,139 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:01:06,139 INFO L82 PathProgramCache]: Analyzing trace with hash 389365736, now seen corresponding path program 10 times [2021-10-21 20:01:06,139 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:01:06,139 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1683395785] [2021-10-21 20:01:06,139 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:01:06,139 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:01:06,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:01:06,153 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 20:01:06,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:01:06,170 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 20:01:06,170 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:01:06,171 INFO L82 PathProgramCache]: Analyzing trace with hash 1797868163, now seen corresponding path program 1 times [2021-10-21 20:01:06,171 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:01:06,171 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1296754897] [2021-10-21 20:01:06,171 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:01:06,171 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:01:06,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:01:06,236 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 45 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2021-10-21 20:01:06,237 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 20:01:06,237 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1296754897] [2021-10-21 20:01:06,237 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1296754897] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-21 20:01:06,237 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-21 20:01:06,238 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-10-21 20:01:06,238 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1363045384] [2021-10-21 20:01:06,238 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-10-21 20:01:06,238 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 20:01:06,239 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-21 20:01:06,239 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-10-21 20:01:06,239 INFO L87 Difference]: Start difference. First operand 292 states and 370 transitions. cyclomatic complexity: 80 Second operand has 6 states, 6 states have (on average 7.0) internal successors, (42), 6 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:01:06,573 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 20:01:06,574 INFO L93 Difference]: Finished difference Result 588 states and 723 transitions. [2021-10-21 20:01:06,574 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-10-21 20:01:06,574 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 588 states and 723 transitions. [2021-10-21 20:01:06,579 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 461 [2021-10-21 20:01:06,584 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 588 states to 579 states and 712 transitions. [2021-10-21 20:01:06,584 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 579 [2021-10-21 20:01:06,585 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 579 [2021-10-21 20:01:06,585 INFO L73 IsDeterministic]: Start isDeterministic. Operand 579 states and 712 transitions. [2021-10-21 20:01:06,586 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-21 20:01:06,586 INFO L681 BuchiCegarLoop]: Abstraction has 579 states and 712 transitions. [2021-10-21 20:01:06,587 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 579 states and 712 transitions. [2021-10-21 20:01:06,594 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 579 to 466. [2021-10-21 20:01:06,595 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 466 states, 466 states have (on average 1.2489270386266094) internal successors, (582), 465 states have internal predecessors, (582), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:01:06,597 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 466 states to 466 states and 582 transitions. [2021-10-21 20:01:06,597 INFO L704 BuchiCegarLoop]: Abstraction has 466 states and 582 transitions. [2021-10-21 20:01:06,597 INFO L587 BuchiCegarLoop]: Abstraction has 466 states and 582 transitions. [2021-10-21 20:01:06,597 INFO L425 BuchiCegarLoop]: ======== Iteration 18============ [2021-10-21 20:01:06,597 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 466 states and 582 transitions. [2021-10-21 20:01:06,600 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 392 [2021-10-21 20:01:06,601 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-21 20:01:06,601 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-21 20:01:06,602 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 20:01:06,602 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 20:01:06,602 INFO L791 eck$LassoCheckResult]: Stem: 8666#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string0.base, #t~string0.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string0.base, #t~string0.offset, 1);call write~init~int(0, #t~string0.base, 1 + #t~string0.offset, 1);call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(15); 8656#L-1 havoc main_#res;havoc main_#t~nondet3, main_#t~ret4, main_~a~0, main_~b~0, main_~r~1;havoc main_~a~0;havoc main_~b~0;havoc main_~r~1;main_~b~0 := main_#t~nondet3;havoc main_#t~nondet3;main_~a~0 := 234770789;mp_add_#in~a, mp_add_#in~b := main_~a~0, main_~b~0;havoc mp_add_#res;havoc mp_add_~a, mp_add_~b, mp_add_~a0~0, mp_add_~a1~0, mp_add_~a2~0, mp_add_~a3~0, mp_add_~b0~0, mp_add_~b1~0, mp_add_~b2~0, mp_add_~b3~0, mp_add_~r0~0, mp_add_~r1~0, mp_add_~r2~0, mp_add_~r3~0, mp_add_~carry~0, mp_add_~partial_sum~0, mp_add_~r~0, mp_add_~i~0, mp_add_~na~0, mp_add_~nb~0;mp_add_~a := mp_add_#in~a;mp_add_~b := mp_add_#in~b;havoc mp_add_~a0~0;havoc mp_add_~a1~0;havoc mp_add_~a2~0;havoc mp_add_~a3~0;havoc mp_add_~b0~0;havoc mp_add_~b1~0;havoc mp_add_~b2~0;havoc mp_add_~b3~0;havoc mp_add_~r0~0;havoc mp_add_~r1~0;havoc mp_add_~r2~0;havoc mp_add_~r3~0;havoc mp_add_~carry~0;havoc mp_add_~partial_sum~0;havoc mp_add_~r~0;havoc mp_add_~i~0;havoc mp_add_~na~0;havoc mp_add_~nb~0;mp_add_~a0~0 := mp_add_~a;mp_add_~a1~0 := mp_add_~a / 256;mp_add_~a2~0 := mp_add_~a / 65536;mp_add_~a3~0 := mp_add_~a / 16777216;mp_add_~b0~0 := mp_add_~b;mp_add_~b1~0 := mp_add_~b / 256;mp_add_~b2~0 := mp_add_~b / 65536;mp_add_~b3~0 := mp_add_~b / 16777216;mp_add_~na~0 := 4; 8648#L51 assume !(0 == mp_add_~a3~0 % 256); 8649#L51-1 mp_add_~nb~0 := 4; 8650#L61 assume !(0 == mp_add_~b3~0 % 256); 8651#L61-1 mp_add_~carry~0 := 0;mp_add_~i~0 := 0; 9035#L72-2 assume !!((mp_add_~i~0 % 256 < mp_add_~na~0 % 256 || mp_add_~i~0 % 256 < mp_add_~nb~0 % 256) || 0 != mp_add_~carry~0 % 65536);mp_add_~partial_sum~0 := mp_add_~carry~0;mp_add_~carry~0 := 0; 9033#L75 assume mp_add_~i~0 % 256 < mp_add_~na~0 % 256; 8684#L76 assume 0 == mp_add_~i~0 % 256;mp_add_~partial_sum~0 := mp_add_~partial_sum~0 % 65536 + mp_add_~a0~0 % 256; 8685#L76-2 assume !(1 == mp_add_~i~0 % 256); 9068#L77-1 assume !(2 == mp_add_~i~0 % 256); 9066#L78-1 assume !(3 == mp_add_~i~0 % 256); 9064#L75-1 assume mp_add_~i~0 % 256 < mp_add_~nb~0 % 256; 9022#L82 assume 0 == mp_add_~i~0 % 256;mp_add_~partial_sum~0 := mp_add_~partial_sum~0 % 65536 + mp_add_~b0~0 % 256; 9058#L82-2 assume !(1 == mp_add_~i~0 % 256); 9055#L83-1 assume !(2 == mp_add_~i~0 % 256); 9052#L84-1 assume !(3 == mp_add_~i~0 % 256); 9049#L81 assume mp_add_~partial_sum~0 % 65536 > 255;mp_add_~partial_sum~0 := ~bitwiseAnd(mp_add_~partial_sum~0 % 65536, 255);mp_add_~carry~0 := 1; 9020#L87-1 [2021-10-21 20:01:06,602 INFO L793 eck$LassoCheckResult]: Loop: 9020#L87-1 assume 0 == mp_add_~i~0 % 256;mp_add_~r0~0 := mp_add_~partial_sum~0; 9017#L91-1 assume !(1 == mp_add_~i~0 % 256); 9014#L92-1 assume !(2 == mp_add_~i~0 % 256); 9010#L93-1 assume !(3 == mp_add_~i~0 % 256); 9006#L94-1 mp_add_~i~0 := 1 + mp_add_~i~0 % 256; 9001#L72-2 assume !!((mp_add_~i~0 % 256 < mp_add_~na~0 % 256 || mp_add_~i~0 % 256 < mp_add_~nb~0 % 256) || 0 != mp_add_~carry~0 % 65536);mp_add_~partial_sum~0 := mp_add_~carry~0;mp_add_~carry~0 := 0; 8994#L75 assume !(mp_add_~i~0 % 256 < mp_add_~na~0 % 256); 8984#L75-1 assume mp_add_~i~0 % 256 < mp_add_~nb~0 % 256; 8981#L82 assume !(0 == mp_add_~i~0 % 256); 8979#L82-2 assume 1 == mp_add_~i~0 % 256;mp_add_~partial_sum~0 := mp_add_~partial_sum~0 % 65536 + mp_add_~b1~0 % 256; 8933#L83-1 assume !(2 == mp_add_~i~0 % 256); 8976#L84-1 assume !(3 == mp_add_~i~0 % 256); 8973#L81 assume mp_add_~partial_sum~0 % 65536 > 255;mp_add_~partial_sum~0 := ~bitwiseAnd(mp_add_~partial_sum~0 % 65536, 255);mp_add_~carry~0 := 1; 8971#L87-1 assume !(0 == mp_add_~i~0 % 256); 8969#L91-1 assume 1 == mp_add_~i~0 % 256;mp_add_~r1~0 := mp_add_~partial_sum~0; 8889#L92-1 assume !(2 == mp_add_~i~0 % 256); 8964#L93-1 assume !(3 == mp_add_~i~0 % 256); 8961#L94-1 mp_add_~i~0 := 1 + mp_add_~i~0 % 256; 8958#L72-2 assume !!((mp_add_~i~0 % 256 < mp_add_~na~0 % 256 || mp_add_~i~0 % 256 < mp_add_~nb~0 % 256) || 0 != mp_add_~carry~0 % 65536);mp_add_~partial_sum~0 := mp_add_~carry~0;mp_add_~carry~0 := 0; 8955#L75 assume !(mp_add_~i~0 % 256 < mp_add_~na~0 % 256); 8916#L75-1 assume !(mp_add_~i~0 % 256 < mp_add_~nb~0 % 256); 8726#L81 assume !(mp_add_~partial_sum~0 % 65536 > 255); 8724#L87-1 assume !(0 == mp_add_~i~0 % 256); 8723#L91-1 assume !(1 == mp_add_~i~0 % 256); 8706#L92-1 assume 2 == mp_add_~i~0 % 256;mp_add_~r2~0 := mp_add_~partial_sum~0; 8704#L93-1 assume !(3 == mp_add_~i~0 % 256); 8702#L94-1 mp_add_~i~0 := 1 + mp_add_~i~0 % 256; 8703#L72-2 assume !!((mp_add_~i~0 % 256 < mp_add_~na~0 % 256 || mp_add_~i~0 % 256 < mp_add_~nb~0 % 256) || 0 != mp_add_~carry~0 % 65536);mp_add_~partial_sum~0 := mp_add_~carry~0;mp_add_~carry~0 := 0; 8751#L75 assume mp_add_~i~0 % 256 < mp_add_~na~0 % 256; 8752#L76 assume !(0 == mp_add_~i~0 % 256); 8780#L76-2 assume !(1 == mp_add_~i~0 % 256); 8776#L77-1 assume !(2 == mp_add_~i~0 % 256); 8777#L78-1 assume 3 == mp_add_~i~0 % 256;mp_add_~partial_sum~0 := mp_add_~partial_sum~0 % 65536 + mp_add_~a3~0 % 256; 8748#L75-1 assume !(mp_add_~i~0 % 256 < mp_add_~nb~0 % 256); 8730#L81 assume !(mp_add_~partial_sum~0 % 65536 > 255); 8729#L87-1 assume !(0 == mp_add_~i~0 % 256); 8728#L91-1 assume !(1 == mp_add_~i~0 % 256); 8727#L92-1 assume !(2 == mp_add_~i~0 % 256); 8713#L93-1 assume 3 == mp_add_~i~0 % 256;mp_add_~r3~0 := mp_add_~partial_sum~0; 8714#L94-1 mp_add_~i~0 := 1 + mp_add_~i~0 % 256; 8709#L72-2 assume !!((mp_add_~i~0 % 256 < mp_add_~na~0 % 256 || mp_add_~i~0 % 256 < mp_add_~nb~0 % 256) || 0 != mp_add_~carry~0 % 65536);mp_add_~partial_sum~0 := mp_add_~carry~0;mp_add_~carry~0 := 0; 8710#L75 assume mp_add_~i~0 % 256 < mp_add_~na~0 % 256; 8874#L76 assume 0 == mp_add_~i~0 % 256;mp_add_~partial_sum~0 := mp_add_~partial_sum~0 % 65536 + mp_add_~a0~0 % 256; 8895#L76-2 assume !(1 == mp_add_~i~0 % 256); 9110#L77-1 assume !(2 == mp_add_~i~0 % 256); 9108#L78-1 assume !(3 == mp_add_~i~0 % 256); 9061#L75-1 assume mp_add_~i~0 % 256 < mp_add_~nb~0 % 256; 9059#L82 assume 0 == mp_add_~i~0 % 256;mp_add_~partial_sum~0 := mp_add_~partial_sum~0 % 65536 + mp_add_~b0~0 % 256; 9056#L82-2 assume !(1 == mp_add_~i~0 % 256); 9053#L83-1 assume !(2 == mp_add_~i~0 % 256); 9050#L84-1 assume !(3 == mp_add_~i~0 % 256); 9025#L81 assume mp_add_~partial_sum~0 % 65536 > 255;mp_add_~partial_sum~0 := ~bitwiseAnd(mp_add_~partial_sum~0 % 65536, 255);mp_add_~carry~0 := 1; 9020#L87-1 [2021-10-21 20:01:06,603 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:01:06,603 INFO L82 PathProgramCache]: Analyzing trace with hash 389365736, now seen corresponding path program 11 times [2021-10-21 20:01:06,603 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:01:06,603 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [683419149] [2021-10-21 20:01:06,603 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:01:06,604 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:01:06,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:01:06,617 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 20:01:06,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:01:06,632 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 20:01:06,633 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:01:06,633 INFO L82 PathProgramCache]: Analyzing trace with hash 302130057, now seen corresponding path program 1 times [2021-10-21 20:01:06,633 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:01:06,633 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [917316977] [2021-10-21 20:01:06,634 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:01:06,634 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:01:06,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:01:06,679 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 50 proven. 3 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-10-21 20:01:06,680 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 20:01:06,680 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [917316977] [2021-10-21 20:01:06,680 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [917316977] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 20:01:06,680 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1477193343] [2021-10-21 20:01:06,680 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:01:06,681 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-21 20:01:06,681 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:01:06,684 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-21 20:01:06,705 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-10-21 20:01:06,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:01:06,780 INFO L263 TraceCheckSpWp]: Trace formula consists of 102 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-21 20:01:06,781 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 20:01:07,043 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 51 proven. 1 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2021-10-21 20:01:07,043 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1477193343] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 20:01:07,044 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-21 20:01:07,044 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2021-10-21 20:01:07,044 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [216431132] [2021-10-21 20:01:07,045 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-10-21 20:01:07,045 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 20:01:07,046 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-10-21 20:01:07,046 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-10-21 20:01:07,046 INFO L87 Difference]: Start difference. First operand 466 states and 582 transitions. cyclomatic complexity: 119 Second operand has 7 states, 7 states have (on average 10.142857142857142) internal successors, (71), 7 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:01:07,994 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 20:01:07,994 INFO L93 Difference]: Finished difference Result 963 states and 1187 transitions. [2021-10-21 20:01:07,995 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-10-21 20:01:07,995 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 963 states and 1187 transitions. [2021-10-21 20:01:08,003 INFO L131 ngComponentsAnalysis]: Automaton has 8 accepting balls. 804 [2021-10-21 20:01:08,012 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 963 states to 961 states and 1185 transitions. [2021-10-21 20:01:08,012 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 961 [2021-10-21 20:01:08,013 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 961 [2021-10-21 20:01:08,013 INFO L73 IsDeterministic]: Start isDeterministic. Operand 961 states and 1185 transitions. [2021-10-21 20:01:08,015 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-21 20:01:08,015 INFO L681 BuchiCegarLoop]: Abstraction has 961 states and 1185 transitions. [2021-10-21 20:01:08,016 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 961 states and 1185 transitions. [2021-10-21 20:01:08,028 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 961 to 689. [2021-10-21 20:01:08,029 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 689 states, 689 states have (on average 1.274310595065312) internal successors, (878), 688 states have internal predecessors, (878), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:01:08,032 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 689 states to 689 states and 878 transitions. [2021-10-21 20:01:08,033 INFO L704 BuchiCegarLoop]: Abstraction has 689 states and 878 transitions. [2021-10-21 20:01:08,033 INFO L587 BuchiCegarLoop]: Abstraction has 689 states and 878 transitions. [2021-10-21 20:01:08,033 INFO L425 BuchiCegarLoop]: ======== Iteration 19============ [2021-10-21 20:01:08,033 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 689 states and 878 transitions. [2021-10-21 20:01:08,037 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 615 [2021-10-21 20:01:08,038 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-21 20:01:08,038 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-21 20:01:08,038 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 20:01:08,039 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 20:01:08,039 INFO L791 eck$LassoCheckResult]: Stem: 10290#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string0.base, #t~string0.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string0.base, #t~string0.offset, 1);call write~init~int(0, #t~string0.base, 1 + #t~string0.offset, 1);call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(15); 10279#L-1 havoc main_#res;havoc main_#t~nondet3, main_#t~ret4, main_~a~0, main_~b~0, main_~r~1;havoc main_~a~0;havoc main_~b~0;havoc main_~r~1;main_~b~0 := main_#t~nondet3;havoc main_#t~nondet3;main_~a~0 := 234770789;mp_add_#in~a, mp_add_#in~b := main_~a~0, main_~b~0;havoc mp_add_#res;havoc mp_add_~a, mp_add_~b, mp_add_~a0~0, mp_add_~a1~0, mp_add_~a2~0, mp_add_~a3~0, mp_add_~b0~0, mp_add_~b1~0, mp_add_~b2~0, mp_add_~b3~0, mp_add_~r0~0, mp_add_~r1~0, mp_add_~r2~0, mp_add_~r3~0, mp_add_~carry~0, mp_add_~partial_sum~0, mp_add_~r~0, mp_add_~i~0, mp_add_~na~0, mp_add_~nb~0;mp_add_~a := mp_add_#in~a;mp_add_~b := mp_add_#in~b;havoc mp_add_~a0~0;havoc mp_add_~a1~0;havoc mp_add_~a2~0;havoc mp_add_~a3~0;havoc mp_add_~b0~0;havoc mp_add_~b1~0;havoc mp_add_~b2~0;havoc mp_add_~b3~0;havoc mp_add_~r0~0;havoc mp_add_~r1~0;havoc mp_add_~r2~0;havoc mp_add_~r3~0;havoc mp_add_~carry~0;havoc mp_add_~partial_sum~0;havoc mp_add_~r~0;havoc mp_add_~i~0;havoc mp_add_~na~0;havoc mp_add_~nb~0;mp_add_~a0~0 := mp_add_~a;mp_add_~a1~0 := mp_add_~a / 256;mp_add_~a2~0 := mp_add_~a / 65536;mp_add_~a3~0 := mp_add_~a / 16777216;mp_add_~b0~0 := mp_add_~b;mp_add_~b1~0 := mp_add_~b / 256;mp_add_~b2~0 := mp_add_~b / 65536;mp_add_~b3~0 := mp_add_~b / 16777216;mp_add_~na~0 := 4; 10272#L51 assume !(0 == mp_add_~a3~0 % 256); 10273#L51-1 mp_add_~nb~0 := 4; 10274#L61 assume !(0 == mp_add_~b3~0 % 256); 10275#L61-1 mp_add_~carry~0 := 0;mp_add_~i~0 := 0; 10694#L72-2 assume !!((mp_add_~i~0 % 256 < mp_add_~na~0 % 256 || mp_add_~i~0 % 256 < mp_add_~nb~0 % 256) || 0 != mp_add_~carry~0 % 65536);mp_add_~partial_sum~0 := mp_add_~carry~0;mp_add_~carry~0 := 0; 10695#L75 assume mp_add_~i~0 % 256 < mp_add_~na~0 % 256; 10689#L76 assume 0 == mp_add_~i~0 % 256;mp_add_~partial_sum~0 := mp_add_~partial_sum~0 % 65536 + mp_add_~a0~0 % 256; 10690#L76-2 assume !(1 == mp_add_~i~0 % 256); 10673#L77-1 assume !(2 == mp_add_~i~0 % 256); 10674#L78-1 assume !(3 == mp_add_~i~0 % 256); 10651#L75-1 assume mp_add_~i~0 % 256 < mp_add_~nb~0 % 256; 10650#L82 assume 0 == mp_add_~i~0 % 256;mp_add_~partial_sum~0 := mp_add_~partial_sum~0 % 65536 + mp_add_~b0~0 % 256; 10648#L82-2 assume !(1 == mp_add_~i~0 % 256); 10646#L83-1 assume !(2 == mp_add_~i~0 % 256); 10644#L84-1 assume !(3 == mp_add_~i~0 % 256); 10605#L81 assume mp_add_~partial_sum~0 % 65536 > 255;mp_add_~partial_sum~0 := ~bitwiseAnd(mp_add_~partial_sum~0 % 65536, 255);mp_add_~carry~0 := 1; 10601#L87-1 [2021-10-21 20:01:08,045 INFO L793 eck$LassoCheckResult]: Loop: 10601#L87-1 assume 0 == mp_add_~i~0 % 256;mp_add_~r0~0 := mp_add_~partial_sum~0; 10597#L91-1 assume !(1 == mp_add_~i~0 % 256); 10594#L92-1 assume !(2 == mp_add_~i~0 % 256); 10591#L93-1 assume !(3 == mp_add_~i~0 % 256); 10588#L94-1 mp_add_~i~0 := 1 + mp_add_~i~0 % 256; 10585#L72-2 assume !!((mp_add_~i~0 % 256 < mp_add_~na~0 % 256 || mp_add_~i~0 % 256 < mp_add_~nb~0 % 256) || 0 != mp_add_~carry~0 % 65536);mp_add_~partial_sum~0 := mp_add_~carry~0;mp_add_~carry~0 := 0; 10580#L75 assume mp_add_~i~0 % 256 < mp_add_~na~0 % 256; 10576#L76 assume !(0 == mp_add_~i~0 % 256); 10572#L76-2 assume 1 == mp_add_~i~0 % 256;mp_add_~partial_sum~0 := mp_add_~partial_sum~0 % 65536 + mp_add_~a1~0 % 256; 10541#L77-1 assume !(2 == mp_add_~i~0 % 256); 10567#L78-1 assume !(3 == mp_add_~i~0 % 256); 10563#L75-1 assume mp_add_~i~0 % 256 < mp_add_~nb~0 % 256; 10534#L82 assume !(0 == mp_add_~i~0 % 256); 10532#L82-2 assume 1 == mp_add_~i~0 % 256;mp_add_~partial_sum~0 := mp_add_~partial_sum~0 % 65536 + mp_add_~b1~0 % 256; 10431#L83-1 assume !(2 == mp_add_~i~0 % 256); 10521#L84-1 assume !(3 == mp_add_~i~0 % 256); 10519#L81 assume mp_add_~partial_sum~0 % 65536 > 255;mp_add_~partial_sum~0 := ~bitwiseAnd(mp_add_~partial_sum~0 % 65536, 255);mp_add_~carry~0 := 1; 10518#L87-1 assume !(0 == mp_add_~i~0 % 256); 10516#L91-1 assume 1 == mp_add_~i~0 % 256;mp_add_~r1~0 := mp_add_~partial_sum~0; 10515#L92-1 assume !(2 == mp_add_~i~0 % 256); 10514#L93-1 assume !(3 == mp_add_~i~0 % 256); 10512#L94-1 mp_add_~i~0 := 1 + mp_add_~i~0 % 256; 10510#L72-2 assume !!((mp_add_~i~0 % 256 < mp_add_~na~0 % 256 || mp_add_~i~0 % 256 < mp_add_~nb~0 % 256) || 0 != mp_add_~carry~0 % 65536);mp_add_~partial_sum~0 := mp_add_~carry~0;mp_add_~carry~0 := 0; 10507#L75 assume mp_add_~i~0 % 256 < mp_add_~na~0 % 256; 10505#L76 assume !(0 == mp_add_~i~0 % 256); 10504#L76-2 assume !(1 == mp_add_~i~0 % 256); 10498#L77-1 assume 2 == mp_add_~i~0 % 256;mp_add_~partial_sum~0 := mp_add_~partial_sum~0 % 65536 + mp_add_~a2~0 % 256; 10424#L78-1 assume !(3 == mp_add_~i~0 % 256); 10425#L75-1 assume !(mp_add_~i~0 % 256 < mp_add_~nb~0 % 256); 10418#L81 assume mp_add_~partial_sum~0 % 65536 > 255;mp_add_~partial_sum~0 := ~bitwiseAnd(mp_add_~partial_sum~0 % 65536, 255);mp_add_~carry~0 := 1; 10416#L87-1 assume !(0 == mp_add_~i~0 % 256); 10417#L91-1 assume !(1 == mp_add_~i~0 % 256); 10530#L92-1 assume 2 == mp_add_~i~0 % 256;mp_add_~r2~0 := mp_add_~partial_sum~0; 10410#L93-1 assume !(3 == mp_add_~i~0 % 256); 10526#L94-1 mp_add_~i~0 := 1 + mp_add_~i~0 % 256; 10524#L72-2 assume !!((mp_add_~i~0 % 256 < mp_add_~na~0 % 256 || mp_add_~i~0 % 256 < mp_add_~nb~0 % 256) || 0 != mp_add_~carry~0 % 65536);mp_add_~partial_sum~0 := mp_add_~carry~0;mp_add_~carry~0 := 0; 10522#L75 assume !(mp_add_~i~0 % 256 < mp_add_~na~0 % 256); 10523#L75-1 assume !(mp_add_~i~0 % 256 < mp_add_~nb~0 % 256); 10583#L81 assume !(mp_add_~partial_sum~0 % 65536 > 255); 10564#L87-1 assume !(0 == mp_add_~i~0 % 256); 10664#L91-1 assume !(1 == mp_add_~i~0 % 256); 10658#L92-1 assume !(2 == mp_add_~i~0 % 256); 10643#L93-1 assume 3 == mp_add_~i~0 % 256;mp_add_~r3~0 := mp_add_~partial_sum~0; 10490#L94-1 mp_add_~i~0 := 1 + mp_add_~i~0 % 256; 10487#L72-2 assume !!((mp_add_~i~0 % 256 < mp_add_~na~0 % 256 || mp_add_~i~0 % 256 < mp_add_~nb~0 % 256) || 0 != mp_add_~carry~0 % 65536);mp_add_~partial_sum~0 := mp_add_~carry~0;mp_add_~carry~0 := 0; 10483#L75 assume mp_add_~i~0 % 256 < mp_add_~na~0 % 256; 10477#L76 assume 0 == mp_add_~i~0 % 256;mp_add_~partial_sum~0 := mp_add_~partial_sum~0 % 65536 + mp_add_~a0~0 % 256; 10478#L76-2 assume !(1 == mp_add_~i~0 % 256); 10654#L77-1 assume !(2 == mp_add_~i~0 % 256); 10653#L78-1 assume !(3 == mp_add_~i~0 % 256); 10652#L75-1 assume mp_add_~i~0 % 256 < mp_add_~nb~0 % 256; 10610#L82 assume 0 == mp_add_~i~0 % 256;mp_add_~partial_sum~0 := mp_add_~partial_sum~0 % 65536 + mp_add_~b0~0 % 256; 10649#L82-2 assume !(1 == mp_add_~i~0 % 256); 10647#L83-1 assume !(2 == mp_add_~i~0 % 256); 10645#L84-1 assume !(3 == mp_add_~i~0 % 256); 10641#L81 assume mp_add_~partial_sum~0 % 65536 > 255;mp_add_~partial_sum~0 := ~bitwiseAnd(mp_add_~partial_sum~0 % 65536, 255);mp_add_~carry~0 := 1; 10601#L87-1 [2021-10-21 20:01:08,045 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:01:08,045 INFO L82 PathProgramCache]: Analyzing trace with hash 389365736, now seen corresponding path program 12 times [2021-10-21 20:01:08,046 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:01:08,046 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [723776161] [2021-10-21 20:01:08,046 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:01:08,046 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:01:08,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:01:08,078 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 20:01:08,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:01:08,100 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 20:01:08,102 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:01:08,102 INFO L82 PathProgramCache]: Analyzing trace with hash 2112972027, now seen corresponding path program 1 times [2021-10-21 20:01:08,102 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:01:08,102 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1974394388] [2021-10-21 20:01:08,103 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:01:08,103 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:01:08,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:01:08,221 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 19 proven. 51 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 20:01:08,222 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 20:01:08,222 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1974394388] [2021-10-21 20:01:08,222 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1974394388] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 20:01:08,222 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [430916469] [2021-10-21 20:01:08,223 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:01:08,224 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-21 20:01:08,224 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:01:08,228 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-21 20:01:08,235 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-10-21 20:01:08,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:01:08,345 INFO L263 TraceCheckSpWp]: Trace formula consists of 111 conjuncts, 5 conjunts are in the unsatisfiable core [2021-10-21 20:01:08,347 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 20:01:08,595 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2021-10-21 20:01:08,595 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [430916469] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-21 20:01:08,595 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-10-21 20:01:08,595 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [6] total 8 [2021-10-21 20:01:08,595 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [973780319] [2021-10-21 20:01:08,596 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-10-21 20:01:08,596 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 20:01:08,596 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-21 20:01:08,597 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2021-10-21 20:01:08,597 INFO L87 Difference]: Start difference. First operand 689 states and 878 transitions. cyclomatic complexity: 194 Second operand has 4 states, 4 states have (on average 9.75) internal successors, (39), 4 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:01:08,874 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 20:01:08,874 INFO L93 Difference]: Finished difference Result 785 states and 918 transitions. [2021-10-21 20:01:08,874 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-21 20:01:08,874 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 785 states and 918 transitions. [2021-10-21 20:01:08,880 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 696 [2021-10-21 20:01:08,886 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 785 states to 738 states and 848 transitions. [2021-10-21 20:01:08,886 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 738 [2021-10-21 20:01:08,887 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 738 [2021-10-21 20:01:08,887 INFO L73 IsDeterministic]: Start isDeterministic. Operand 738 states and 848 transitions. [2021-10-21 20:01:08,890 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-21 20:01:08,890 INFO L681 BuchiCegarLoop]: Abstraction has 738 states and 848 transitions. [2021-10-21 20:01:08,891 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 738 states and 848 transitions. [2021-10-21 20:01:08,900 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 738 to 601. [2021-10-21 20:01:08,902 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 601 states, 601 states have (on average 1.1763727121464227) internal successors, (707), 600 states have internal predecessors, (707), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:01:08,904 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 601 states to 601 states and 707 transitions. [2021-10-21 20:01:08,904 INFO L704 BuchiCegarLoop]: Abstraction has 601 states and 707 transitions. [2021-10-21 20:01:08,904 INFO L587 BuchiCegarLoop]: Abstraction has 601 states and 707 transitions. [2021-10-21 20:01:08,905 INFO L425 BuchiCegarLoop]: ======== Iteration 20============ [2021-10-21 20:01:08,905 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 601 states and 707 transitions. [2021-10-21 20:01:08,908 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 566 [2021-10-21 20:01:08,908 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-21 20:01:08,908 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-21 20:01:08,909 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 20:01:08,909 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 20:01:08,909 INFO L791 eck$LassoCheckResult]: Stem: 11940#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string0.base, #t~string0.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string0.base, #t~string0.offset, 1);call write~init~int(0, #t~string0.base, 1 + #t~string0.offset, 1);call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(15); 11932#L-1 havoc main_#res;havoc main_#t~nondet3, main_#t~ret4, main_~a~0, main_~b~0, main_~r~1;havoc main_~a~0;havoc main_~b~0;havoc main_~r~1;main_~b~0 := main_#t~nondet3;havoc main_#t~nondet3;main_~a~0 := 234770789;mp_add_#in~a, mp_add_#in~b := main_~a~0, main_~b~0;havoc mp_add_#res;havoc mp_add_~a, mp_add_~b, mp_add_~a0~0, mp_add_~a1~0, mp_add_~a2~0, mp_add_~a3~0, mp_add_~b0~0, mp_add_~b1~0, mp_add_~b2~0, mp_add_~b3~0, mp_add_~r0~0, mp_add_~r1~0, mp_add_~r2~0, mp_add_~r3~0, mp_add_~carry~0, mp_add_~partial_sum~0, mp_add_~r~0, mp_add_~i~0, mp_add_~na~0, mp_add_~nb~0;mp_add_~a := mp_add_#in~a;mp_add_~b := mp_add_#in~b;havoc mp_add_~a0~0;havoc mp_add_~a1~0;havoc mp_add_~a2~0;havoc mp_add_~a3~0;havoc mp_add_~b0~0;havoc mp_add_~b1~0;havoc mp_add_~b2~0;havoc mp_add_~b3~0;havoc mp_add_~r0~0;havoc mp_add_~r1~0;havoc mp_add_~r2~0;havoc mp_add_~r3~0;havoc mp_add_~carry~0;havoc mp_add_~partial_sum~0;havoc mp_add_~r~0;havoc mp_add_~i~0;havoc mp_add_~na~0;havoc mp_add_~nb~0;mp_add_~a0~0 := mp_add_~a;mp_add_~a1~0 := mp_add_~a / 256;mp_add_~a2~0 := mp_add_~a / 65536;mp_add_~a3~0 := mp_add_~a / 16777216;mp_add_~b0~0 := mp_add_~b;mp_add_~b1~0 := mp_add_~b / 256;mp_add_~b2~0 := mp_add_~b / 65536;mp_add_~b3~0 := mp_add_~b / 16777216;mp_add_~na~0 := 4; 11924#L51 assume !(0 == mp_add_~a3~0 % 256); 11925#L51-1 mp_add_~nb~0 := 4; 11926#L61 assume 0 == mp_add_~b3~0 % 256;mp_add_~nb~0 := mp_add_~nb~0 % 256 - 1; 11928#L63 assume 0 == mp_add_~b2~0 % 256;mp_add_~nb~0 := mp_add_~nb~0 % 256 - 1; 11929#L65 assume 0 == mp_add_~b1~0 % 256;mp_add_~nb~0 := mp_add_~nb~0 % 256 - 1; 11960#L61-1 mp_add_~carry~0 := 0;mp_add_~i~0 := 0; 12261#L72-2 assume !!((mp_add_~i~0 % 256 < mp_add_~na~0 % 256 || mp_add_~i~0 % 256 < mp_add_~nb~0 % 256) || 0 != mp_add_~carry~0 % 65536);mp_add_~partial_sum~0 := mp_add_~carry~0;mp_add_~carry~0 := 0; 12262#L75 assume mp_add_~i~0 % 256 < mp_add_~na~0 % 256; 12255#L76 assume 0 == mp_add_~i~0 % 256;mp_add_~partial_sum~0 := mp_add_~partial_sum~0 % 65536 + mp_add_~a0~0 % 256; 12256#L76-2 assume !(1 == mp_add_~i~0 % 256); 12250#L77-1 assume !(2 == mp_add_~i~0 % 256); 12251#L78-1 assume !(3 == mp_add_~i~0 % 256); 12292#L75-1 assume !(mp_add_~i~0 % 256 < mp_add_~nb~0 % 256); 12178#L81 [2021-10-21 20:01:08,910 INFO L793 eck$LassoCheckResult]: Loop: 12178#L81 assume !(mp_add_~partial_sum~0 % 65536 > 255); 12149#L87-1 assume 0 == mp_add_~i~0 % 256;mp_add_~r0~0 := mp_add_~partial_sum~0; 12291#L91-1 assume !(1 == mp_add_~i~0 % 256); 12290#L92-1 assume !(2 == mp_add_~i~0 % 256); 12289#L93-1 assume !(3 == mp_add_~i~0 % 256); 12288#L94-1 mp_add_~i~0 := 1 + mp_add_~i~0 % 256; 12287#L72-2 assume !!((mp_add_~i~0 % 256 < mp_add_~na~0 % 256 || mp_add_~i~0 % 256 < mp_add_~nb~0 % 256) || 0 != mp_add_~carry~0 % 65536);mp_add_~partial_sum~0 := mp_add_~carry~0;mp_add_~carry~0 := 0; 12286#L75 assume mp_add_~i~0 % 256 < mp_add_~na~0 % 256; 12285#L76 assume !(0 == mp_add_~i~0 % 256); 12284#L76-2 assume 1 == mp_add_~i~0 % 256;mp_add_~partial_sum~0 := mp_add_~partial_sum~0 % 65536 + mp_add_~a1~0 % 256; 12181#L77-1 assume !(2 == mp_add_~i~0 % 256); 12283#L78-1 assume !(3 == mp_add_~i~0 % 256); 12282#L75-1 assume !(mp_add_~i~0 % 256 < mp_add_~nb~0 % 256); 12114#L81 assume !(mp_add_~partial_sum~0 % 65536 > 255); 12116#L87-1 assume !(0 == mp_add_~i~0 % 256); 12281#L91-1 assume 1 == mp_add_~i~0 % 256;mp_add_~r1~0 := mp_add_~partial_sum~0; 12020#L92-1 assume !(2 == mp_add_~i~0 % 256); 12280#L93-1 assume !(3 == mp_add_~i~0 % 256); 12279#L94-1 mp_add_~i~0 := 1 + mp_add_~i~0 % 256; 12278#L72-2 assume !!((mp_add_~i~0 % 256 < mp_add_~na~0 % 256 || mp_add_~i~0 % 256 < mp_add_~nb~0 % 256) || 0 != mp_add_~carry~0 % 65536);mp_add_~partial_sum~0 := mp_add_~carry~0;mp_add_~carry~0 := 0; 12277#L75 assume mp_add_~i~0 % 256 < mp_add_~na~0 % 256; 12276#L76 assume !(0 == mp_add_~i~0 % 256); 12275#L76-2 assume !(1 == mp_add_~i~0 % 256); 12274#L77-1 assume 2 == mp_add_~i~0 % 256;mp_add_~partial_sum~0 := mp_add_~partial_sum~0 % 65536 + mp_add_~a2~0 % 256; 12176#L78-1 assume !(3 == mp_add_~i~0 % 256); 12084#L75-1 assume !(mp_add_~i~0 % 256 < mp_add_~nb~0 % 256); 12273#L81 assume !(mp_add_~partial_sum~0 % 65536 > 255); 12063#L87-1 assume !(0 == mp_add_~i~0 % 256); 12272#L91-1 assume !(1 == mp_add_~i~0 % 256); 12271#L92-1 assume 2 == mp_add_~i~0 % 256;mp_add_~r2~0 := mp_add_~partial_sum~0; 12124#L93-1 assume !(3 == mp_add_~i~0 % 256); 12270#L94-1 mp_add_~i~0 := 1 + mp_add_~i~0 % 256; 12269#L72-2 assume !!((mp_add_~i~0 % 256 < mp_add_~na~0 % 256 || mp_add_~i~0 % 256 < mp_add_~nb~0 % 256) || 0 != mp_add_~carry~0 % 65536);mp_add_~partial_sum~0 := mp_add_~carry~0;mp_add_~carry~0 := 0; 12268#L75 assume mp_add_~i~0 % 256 < mp_add_~na~0 % 256; 12267#L76 assume !(0 == mp_add_~i~0 % 256); 12266#L76-2 assume !(1 == mp_add_~i~0 % 256); 12265#L77-1 assume !(2 == mp_add_~i~0 % 256); 12252#L78-1 assume 3 == mp_add_~i~0 % 256;mp_add_~partial_sum~0 := mp_add_~partial_sum~0 % 65536 + mp_add_~a3~0 % 256; 12047#L75-1 assume !(mp_add_~i~0 % 256 < mp_add_~nb~0 % 256); 12246#L81 assume !(mp_add_~partial_sum~0 % 65536 > 255); 12211#L87-1 assume !(0 == mp_add_~i~0 % 256); 12242#L91-1 assume !(1 == mp_add_~i~0 % 256); 12240#L92-1 assume !(2 == mp_add_~i~0 % 256); 12226#L93-1 assume 3 == mp_add_~i~0 % 256;mp_add_~r3~0 := mp_add_~partial_sum~0; 12010#L94-1 mp_add_~i~0 := 1 + mp_add_~i~0 % 256; 12011#L72-2 assume !!((mp_add_~i~0 % 256 < mp_add_~na~0 % 256 || mp_add_~i~0 % 256 < mp_add_~nb~0 % 256) || 0 != mp_add_~carry~0 % 65536);mp_add_~partial_sum~0 := mp_add_~carry~0;mp_add_~carry~0 := 0; 11998#L75 assume mp_add_~i~0 % 256 < mp_add_~na~0 % 256; 11992#L76 assume !(0 == mp_add_~i~0 % 256); 11989#L76-2 assume !(1 == mp_add_~i~0 % 256); 11985#L77-1 assume !(2 == mp_add_~i~0 % 256); 11986#L78-1 assume !(3 == mp_add_~i~0 % 256); 12203#L75-1 assume !(mp_add_~i~0 % 256 < mp_add_~nb~0 % 256); 12198#L81 assume !(mp_add_~partial_sum~0 % 65536 > 255); 12192#L87-1 assume !(0 == mp_add_~i~0 % 256); 12142#L91-1 assume !(1 == mp_add_~i~0 % 256); 12140#L92-1 assume !(2 == mp_add_~i~0 % 256); 12121#L93-1 assume !(3 == mp_add_~i~0 % 256); 12099#L94-1 mp_add_~i~0 := 1 + mp_add_~i~0 % 256; 12008#L72-2 assume !!((mp_add_~i~0 % 256 < mp_add_~na~0 % 256 || mp_add_~i~0 % 256 < mp_add_~nb~0 % 256) || 0 != mp_add_~carry~0 % 65536);mp_add_~partial_sum~0 := mp_add_~carry~0;mp_add_~carry~0 := 0; 12009#L75 assume mp_add_~i~0 % 256 < mp_add_~na~0 % 256; 12184#L76 assume 0 == mp_add_~i~0 % 256;mp_add_~partial_sum~0 := mp_add_~partial_sum~0 % 65536 + mp_add_~a0~0 % 256; 12185#L76-2 assume !(1 == mp_add_~i~0 % 256); 12186#L77-1 assume !(2 == mp_add_~i~0 % 256); 12182#L78-1 assume !(3 == mp_add_~i~0 % 256); 12177#L75-1 assume !(mp_add_~i~0 % 256 < mp_add_~nb~0 % 256); 12178#L81 [2021-10-21 20:01:08,910 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:01:08,910 INFO L82 PathProgramCache]: Analyzing trace with hash -890288343, now seen corresponding path program 1 times [2021-10-21 20:01:08,910 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:01:08,911 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [948476382] [2021-10-21 20:01:08,911 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:01:08,911 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:01:08,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:01:09,004 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 20:01:09,005 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 20:01:09,005 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [948476382] [2021-10-21 20:01:09,005 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [948476382] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-21 20:01:09,005 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-21 20:01:09,005 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-10-21 20:01:09,006 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [541233890] [2021-10-21 20:01:09,006 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-10-21 20:01:09,006 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:01:09,006 INFO L82 PathProgramCache]: Analyzing trace with hash 1197554810, now seen corresponding path program 1 times [2021-10-21 20:01:09,007 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:01:09,007 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1643919787] [2021-10-21 20:01:09,007 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:01:09,007 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:01:09,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:01:09,126 INFO L134 CoverageAnalysis]: Checked inductivity of 130 backedges. 24 proven. 106 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 20:01:09,126 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 20:01:09,126 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1643919787] [2021-10-21 20:01:09,126 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1643919787] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 20:01:09,127 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2046358242] [2021-10-21 20:01:09,127 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:01:09,127 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-21 20:01:09,127 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:01:09,129 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-21 20:01:09,148 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2021-10-21 20:01:09,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:01:09,270 INFO L263 TraceCheckSpWp]: Trace formula consists of 116 conjuncts, 7 conjunts are in the unsatisfiable core [2021-10-21 20:01:09,272 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 20:01:09,904 INFO L134 CoverageAnalysis]: Checked inductivity of 130 backedges. 83 proven. 10 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2021-10-21 20:01:09,904 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2046358242] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 20:01:09,904 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-21 20:01:09,905 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 5] total 10 [2021-10-21 20:01:09,905 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1093199520] [2021-10-21 20:01:09,905 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-10-21 20:01:09,905 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 20:01:09,906 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-10-21 20:01:09,906 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-10-21 20:01:09,906 INFO L87 Difference]: Start difference. First operand 601 states and 707 transitions. cyclomatic complexity: 111 Second operand has 7 states, 6 states have (on average 2.5) internal successors, (15), 7 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:01:10,556 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 20:01:10,556 INFO L93 Difference]: Finished difference Result 2371 states and 2782 transitions. [2021-10-21 20:01:10,556 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-10-21 20:01:10,557 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 2371 states and 2782 transitions. [2021-10-21 20:01:10,578 INFO L131 ngComponentsAnalysis]: Automaton has 20 accepting balls. 2264 [2021-10-21 20:01:10,596 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 2371 states to 2371 states and 2782 transitions. [2021-10-21 20:01:10,596 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 2371 [2021-10-21 20:01:10,598 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 2371 [2021-10-21 20:01:10,599 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2371 states and 2782 transitions. [2021-10-21 20:01:10,602 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-21 20:01:10,603 INFO L681 BuchiCegarLoop]: Abstraction has 2371 states and 2782 transitions. [2021-10-21 20:01:10,605 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2371 states and 2782 transitions. [2021-10-21 20:01:10,624 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2371 to 593. [2021-10-21 20:01:10,626 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 593 states, 593 states have (on average 1.1770657672849916) internal successors, (698), 592 states have internal predecessors, (698), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:01:10,628 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 593 states to 593 states and 698 transitions. [2021-10-21 20:01:10,628 INFO L704 BuchiCegarLoop]: Abstraction has 593 states and 698 transitions. [2021-10-21 20:01:10,628 INFO L587 BuchiCegarLoop]: Abstraction has 593 states and 698 transitions. [2021-10-21 20:01:10,628 INFO L425 BuchiCegarLoop]: ======== Iteration 21============ [2021-10-21 20:01:10,628 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 593 states and 698 transitions. [2021-10-21 20:01:10,631 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 566 [2021-10-21 20:01:10,632 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-21 20:01:10,632 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-21 20:01:10,632 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 20:01:10,633 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [5, 5, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 20:01:10,633 INFO L791 eck$LassoCheckResult]: Stem: 15128#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string0.base, #t~string0.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string0.base, #t~string0.offset, 1);call write~init~int(0, #t~string0.base, 1 + #t~string0.offset, 1);call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(15); 15119#L-1 havoc main_#res;havoc main_#t~nondet3, main_#t~ret4, main_~a~0, main_~b~0, main_~r~1;havoc main_~a~0;havoc main_~b~0;havoc main_~r~1;main_~b~0 := main_#t~nondet3;havoc main_#t~nondet3;main_~a~0 := 234770789;mp_add_#in~a, mp_add_#in~b := main_~a~0, main_~b~0;havoc mp_add_#res;havoc mp_add_~a, mp_add_~b, mp_add_~a0~0, mp_add_~a1~0, mp_add_~a2~0, mp_add_~a3~0, mp_add_~b0~0, mp_add_~b1~0, mp_add_~b2~0, mp_add_~b3~0, mp_add_~r0~0, mp_add_~r1~0, mp_add_~r2~0, mp_add_~r3~0, mp_add_~carry~0, mp_add_~partial_sum~0, mp_add_~r~0, mp_add_~i~0, mp_add_~na~0, mp_add_~nb~0;mp_add_~a := mp_add_#in~a;mp_add_~b := mp_add_#in~b;havoc mp_add_~a0~0;havoc mp_add_~a1~0;havoc mp_add_~a2~0;havoc mp_add_~a3~0;havoc mp_add_~b0~0;havoc mp_add_~b1~0;havoc mp_add_~b2~0;havoc mp_add_~b3~0;havoc mp_add_~r0~0;havoc mp_add_~r1~0;havoc mp_add_~r2~0;havoc mp_add_~r3~0;havoc mp_add_~carry~0;havoc mp_add_~partial_sum~0;havoc mp_add_~r~0;havoc mp_add_~i~0;havoc mp_add_~na~0;havoc mp_add_~nb~0;mp_add_~a0~0 := mp_add_~a;mp_add_~a1~0 := mp_add_~a / 256;mp_add_~a2~0 := mp_add_~a / 65536;mp_add_~a3~0 := mp_add_~a / 16777216;mp_add_~b0~0 := mp_add_~b;mp_add_~b1~0 := mp_add_~b / 256;mp_add_~b2~0 := mp_add_~b / 65536;mp_add_~b3~0 := mp_add_~b / 16777216;mp_add_~na~0 := 4; 15110#L51 assume !(0 == mp_add_~a3~0 % 256); 15111#L51-1 mp_add_~nb~0 := 4; 15112#L61 assume !(0 == mp_add_~b3~0 % 256); 15113#L61-1 mp_add_~carry~0 := 0;mp_add_~i~0 := 0; 15126#L72-2 assume !!((mp_add_~i~0 % 256 < mp_add_~na~0 % 256 || mp_add_~i~0 % 256 < mp_add_~nb~0 % 256) || 0 != mp_add_~carry~0 % 65536);mp_add_~partial_sum~0 := mp_add_~carry~0;mp_add_~carry~0 := 0; 15484#L75 assume mp_add_~i~0 % 256 < mp_add_~na~0 % 256; 15483#L76 assume 0 == mp_add_~i~0 % 256;mp_add_~partial_sum~0 := mp_add_~partial_sum~0 % 65536 + mp_add_~a0~0 % 256; 15482#L76-2 assume !(1 == mp_add_~i~0 % 256); 15481#L77-1 assume !(2 == mp_add_~i~0 % 256); 15480#L78-1 assume !(3 == mp_add_~i~0 % 256); 15478#L75-1 assume mp_add_~i~0 % 256 < mp_add_~nb~0 % 256; 15479#L82 assume 0 == mp_add_~i~0 % 256;mp_add_~partial_sum~0 := mp_add_~partial_sum~0 % 65536 + mp_add_~b0~0 % 256; 15699#L82-2 assume !(1 == mp_add_~i~0 % 256); 15698#L83-1 assume !(2 == mp_add_~i~0 % 256); 15697#L84-1 assume !(3 == mp_add_~i~0 % 256); 15696#L81 assume mp_add_~partial_sum~0 % 65536 > 255;mp_add_~partial_sum~0 := ~bitwiseAnd(mp_add_~partial_sum~0 % 65536, 255);mp_add_~carry~0 := 1; 15406#L87-1 [2021-10-21 20:01:10,633 INFO L793 eck$LassoCheckResult]: Loop: 15406#L87-1 assume 0 == mp_add_~i~0 % 256;mp_add_~r0~0 := mp_add_~partial_sum~0; 15401#L91-1 assume !(1 == mp_add_~i~0 % 256); 15396#L92-1 assume !(2 == mp_add_~i~0 % 256); 15390#L93-1 assume !(3 == mp_add_~i~0 % 256); 15367#L94-1 mp_add_~i~0 := 1 + mp_add_~i~0 % 256; 15365#L72-2 assume !!((mp_add_~i~0 % 256 < mp_add_~na~0 % 256 || mp_add_~i~0 % 256 < mp_add_~nb~0 % 256) || 0 != mp_add_~carry~0 % 65536);mp_add_~partial_sum~0 := mp_add_~carry~0;mp_add_~carry~0 := 0; 15361#L75 assume mp_add_~i~0 % 256 < mp_add_~na~0 % 256; 15358#L76 assume !(0 == mp_add_~i~0 % 256); 15355#L76-2 assume 1 == mp_add_~i~0 % 256;mp_add_~partial_sum~0 := mp_add_~partial_sum~0 % 65536 + mp_add_~a1~0 % 256; 15353#L77-1 assume !(2 == mp_add_~i~0 % 256); 15350#L78-1 assume !(3 == mp_add_~i~0 % 256); 15344#L75-1 assume mp_add_~i~0 % 256 < mp_add_~nb~0 % 256; 15340#L82 assume !(0 == mp_add_~i~0 % 256); 15338#L82-2 assume 1 == mp_add_~i~0 % 256;mp_add_~partial_sum~0 := mp_add_~partial_sum~0 % 65536 + mp_add_~b1~0 % 256; 15336#L83-1 assume !(2 == mp_add_~i~0 % 256); 15334#L84-1 assume !(3 == mp_add_~i~0 % 256); 15331#L81 assume mp_add_~partial_sum~0 % 65536 > 255;mp_add_~partial_sum~0 := ~bitwiseAnd(mp_add_~partial_sum~0 % 65536, 255);mp_add_~carry~0 := 1; 15329#L87-1 assume !(0 == mp_add_~i~0 % 256); 15327#L91-1 assume 1 == mp_add_~i~0 % 256;mp_add_~r1~0 := mp_add_~partial_sum~0; 15323#L92-1 assume !(2 == mp_add_~i~0 % 256); 15319#L93-1 assume !(3 == mp_add_~i~0 % 256); 15316#L94-1 mp_add_~i~0 := 1 + mp_add_~i~0 % 256; 15313#L72-2 assume !!((mp_add_~i~0 % 256 < mp_add_~na~0 % 256 || mp_add_~i~0 % 256 < mp_add_~nb~0 % 256) || 0 != mp_add_~carry~0 % 65536);mp_add_~partial_sum~0 := mp_add_~carry~0;mp_add_~carry~0 := 0; 15311#L75 assume !(mp_add_~i~0 % 256 < mp_add_~na~0 % 256); 15287#L75-1 assume !(mp_add_~i~0 % 256 < mp_add_~nb~0 % 256); 15275#L81 assume !(mp_add_~partial_sum~0 % 65536 > 255); 15272#L87-1 assume !(0 == mp_add_~i~0 % 256); 15270#L91-1 assume !(1 == mp_add_~i~0 % 256); 15266#L92-1 assume 2 == mp_add_~i~0 % 256;mp_add_~r2~0 := mp_add_~partial_sum~0; 15261#L93-1 assume !(3 == mp_add_~i~0 % 256); 15257#L94-1 mp_add_~i~0 := 1 + mp_add_~i~0 % 256; 15253#L72-2 assume !!((mp_add_~i~0 % 256 < mp_add_~na~0 % 256 || mp_add_~i~0 % 256 < mp_add_~nb~0 % 256) || 0 != mp_add_~carry~0 % 65536);mp_add_~partial_sum~0 := mp_add_~carry~0;mp_add_~carry~0 := 0; 15248#L75 assume mp_add_~i~0 % 256 < mp_add_~na~0 % 256; 15241#L76 assume !(0 == mp_add_~i~0 % 256); 15236#L76-2 assume !(1 == mp_add_~i~0 % 256); 15231#L77-1 assume !(2 == mp_add_~i~0 % 256); 15226#L78-1 assume 3 == mp_add_~i~0 % 256;mp_add_~partial_sum~0 := mp_add_~partial_sum~0 % 65536 + mp_add_~a3~0 % 256; 15219#L75-1 assume mp_add_~i~0 % 256 < mp_add_~nb~0 % 256; 15217#L82 assume !(0 == mp_add_~i~0 % 256); 15216#L82-2 assume !(1 == mp_add_~i~0 % 256); 15215#L83-1 assume !(2 == mp_add_~i~0 % 256); 15212#L84-1 assume 3 == mp_add_~i~0 % 256;mp_add_~partial_sum~0 := mp_add_~partial_sum~0 % 65536 + mp_add_~b3~0 % 256; 15213#L81 assume mp_add_~partial_sum~0 % 65536 > 255;mp_add_~partial_sum~0 := ~bitwiseAnd(mp_add_~partial_sum~0 % 65536, 255);mp_add_~carry~0 := 1; 15202#L87-1 assume !(0 == mp_add_~i~0 % 256); 15203#L91-1 assume !(1 == mp_add_~i~0 % 256); 15194#L92-1 assume !(2 == mp_add_~i~0 % 256); 15195#L93-1 assume 3 == mp_add_~i~0 % 256;mp_add_~r3~0 := mp_add_~partial_sum~0; 15190#L94-1 mp_add_~i~0 := 1 + mp_add_~i~0 % 256; 15191#L72-2 assume !!((mp_add_~i~0 % 256 < mp_add_~na~0 % 256 || mp_add_~i~0 % 256 < mp_add_~nb~0 % 256) || 0 != mp_add_~carry~0 % 65536);mp_add_~partial_sum~0 := mp_add_~carry~0;mp_add_~carry~0 := 0; 15185#L75 assume !(mp_add_~i~0 % 256 < mp_add_~na~0 % 256); 15187#L75-1 assume !(mp_add_~i~0 % 256 < mp_add_~nb~0 % 256); 15439#L81 assume !(mp_add_~partial_sum~0 % 65536 > 255); 15438#L87-1 assume !(0 == mp_add_~i~0 % 256); 15437#L91-1 assume !(1 == mp_add_~i~0 % 256); 15436#L92-1 assume !(2 == mp_add_~i~0 % 256); 15260#L93-1 assume !(3 == mp_add_~i~0 % 256); 15256#L94-1 mp_add_~i~0 := 1 + mp_add_~i~0 % 256; 15252#L72-2 assume !!((mp_add_~i~0 % 256 < mp_add_~na~0 % 256 || mp_add_~i~0 % 256 < mp_add_~nb~0 % 256) || 0 != mp_add_~carry~0 % 65536);mp_add_~partial_sum~0 := mp_add_~carry~0;mp_add_~carry~0 := 0; 15246#L75 assume mp_add_~i~0 % 256 < mp_add_~na~0 % 256; 15239#L76 assume 0 == mp_add_~i~0 % 256;mp_add_~partial_sum~0 := mp_add_~partial_sum~0 % 65536 + mp_add_~a0~0 % 256; 15240#L76-2 assume !(1 == mp_add_~i~0 % 256); 15476#L77-1 assume !(2 == mp_add_~i~0 % 256); 15475#L78-1 assume !(3 == mp_add_~i~0 % 256); 15473#L75-1 assume mp_add_~i~0 % 256 < mp_add_~nb~0 % 256; 15474#L82 assume 0 == mp_add_~i~0 % 256;mp_add_~partial_sum~0 := mp_add_~partial_sum~0 % 65536 + mp_add_~b0~0 % 256; 15477#L82-2 assume !(1 == mp_add_~i~0 % 256); 15451#L83-1 assume !(2 == mp_add_~i~0 % 256); 15412#L84-1 assume !(3 == mp_add_~i~0 % 256); 15409#L81 assume mp_add_~partial_sum~0 % 65536 > 255;mp_add_~partial_sum~0 := ~bitwiseAnd(mp_add_~partial_sum~0 % 65536, 255);mp_add_~carry~0 := 1; 15406#L87-1 [2021-10-21 20:01:10,633 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:01:10,634 INFO L82 PathProgramCache]: Analyzing trace with hash 389365736, now seen corresponding path program 13 times [2021-10-21 20:01:10,634 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:01:10,634 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2037335826] [2021-10-21 20:01:10,634 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:01:10,634 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:01:10,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:01:10,649 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 20:01:10,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:01:10,667 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 20:01:10,668 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:01:10,668 INFO L82 PathProgramCache]: Analyzing trace with hash -455989548, now seen corresponding path program 1 times [2021-10-21 20:01:10,668 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:01:10,668 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [134616085] [2021-10-21 20:01:10,668 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:01:10,668 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:01:10,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:01:10,767 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 88 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2021-10-21 20:01:10,767 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 20:01:10,767 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [134616085] [2021-10-21 20:01:10,768 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [134616085] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-21 20:01:10,768 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-21 20:01:10,768 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-10-21 20:01:10,768 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1372418854] [2021-10-21 20:01:10,770 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-10-21 20:01:10,770 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 20:01:10,770 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-10-21 20:01:10,771 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2021-10-21 20:01:10,771 INFO L87 Difference]: Start difference. First operand 593 states and 698 transitions. cyclomatic complexity: 110 Second operand has 7 states, 7 states have (on average 7.857142857142857) internal successors, (55), 7 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:01:11,249 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 20:01:11,250 INFO L93 Difference]: Finished difference Result 836 states and 964 transitions. [2021-10-21 20:01:11,250 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-10-21 20:01:11,250 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 836 states and 964 transitions. [2021-10-21 20:01:11,256 INFO L131 ngComponentsAnalysis]: Automaton has 7 accepting balls. 753 [2021-10-21 20:01:11,262 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 836 states to 819 states and 945 transitions. [2021-10-21 20:01:11,262 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 819 [2021-10-21 20:01:11,263 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 819 [2021-10-21 20:01:11,263 INFO L73 IsDeterministic]: Start isDeterministic. Operand 819 states and 945 transitions. [2021-10-21 20:01:11,265 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-21 20:01:11,265 INFO L681 BuchiCegarLoop]: Abstraction has 819 states and 945 transitions. [2021-10-21 20:01:11,266 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 819 states and 945 transitions. [2021-10-21 20:01:11,276 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 819 to 712. [2021-10-21 20:01:11,278 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 712 states, 712 states have (on average 1.1713483146067416) internal successors, (834), 711 states have internal predecessors, (834), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:01:11,280 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 712 states to 712 states and 834 transitions. [2021-10-21 20:01:11,281 INFO L704 BuchiCegarLoop]: Abstraction has 712 states and 834 transitions. [2021-10-21 20:01:11,281 INFO L587 BuchiCegarLoop]: Abstraction has 712 states and 834 transitions. [2021-10-21 20:01:11,281 INFO L425 BuchiCegarLoop]: ======== Iteration 22============ [2021-10-21 20:01:11,281 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 712 states and 834 transitions. [2021-10-21 20:01:11,285 INFO L131 ngComponentsAnalysis]: Automaton has 6 accepting balls. 685 [2021-10-21 20:01:11,285 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-21 20:01:11,285 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-21 20:01:11,286 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 20:01:11,286 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 20:01:11,286 INFO L791 eck$LassoCheckResult]: Stem: 16584#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string0.base, #t~string0.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string0.base, #t~string0.offset, 1);call write~init~int(0, #t~string0.base, 1 + #t~string0.offset, 1);call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(15); 16576#L-1 havoc main_#res;havoc main_#t~nondet3, main_#t~ret4, main_~a~0, main_~b~0, main_~r~1;havoc main_~a~0;havoc main_~b~0;havoc main_~r~1;main_~b~0 := main_#t~nondet3;havoc main_#t~nondet3;main_~a~0 := 234770789;mp_add_#in~a, mp_add_#in~b := main_~a~0, main_~b~0;havoc mp_add_#res;havoc mp_add_~a, mp_add_~b, mp_add_~a0~0, mp_add_~a1~0, mp_add_~a2~0, mp_add_~a3~0, mp_add_~b0~0, mp_add_~b1~0, mp_add_~b2~0, mp_add_~b3~0, mp_add_~r0~0, mp_add_~r1~0, mp_add_~r2~0, mp_add_~r3~0, mp_add_~carry~0, mp_add_~partial_sum~0, mp_add_~r~0, mp_add_~i~0, mp_add_~na~0, mp_add_~nb~0;mp_add_~a := mp_add_#in~a;mp_add_~b := mp_add_#in~b;havoc mp_add_~a0~0;havoc mp_add_~a1~0;havoc mp_add_~a2~0;havoc mp_add_~a3~0;havoc mp_add_~b0~0;havoc mp_add_~b1~0;havoc mp_add_~b2~0;havoc mp_add_~b3~0;havoc mp_add_~r0~0;havoc mp_add_~r1~0;havoc mp_add_~r2~0;havoc mp_add_~r3~0;havoc mp_add_~carry~0;havoc mp_add_~partial_sum~0;havoc mp_add_~r~0;havoc mp_add_~i~0;havoc mp_add_~na~0;havoc mp_add_~nb~0;mp_add_~a0~0 := mp_add_~a;mp_add_~a1~0 := mp_add_~a / 256;mp_add_~a2~0 := mp_add_~a / 65536;mp_add_~a3~0 := mp_add_~a / 16777216;mp_add_~b0~0 := mp_add_~b;mp_add_~b1~0 := mp_add_~b / 256;mp_add_~b2~0 := mp_add_~b / 65536;mp_add_~b3~0 := mp_add_~b / 16777216;mp_add_~na~0 := 4; 16568#L51 assume !(0 == mp_add_~a3~0 % 256); 16569#L51-1 mp_add_~nb~0 := 4; 16570#L61 assume !(0 == mp_add_~b3~0 % 256); 16571#L61-1 mp_add_~carry~0 := 0;mp_add_~i~0 := 0; 16581#L72-2 assume !!((mp_add_~i~0 % 256 < mp_add_~na~0 % 256 || mp_add_~i~0 % 256 < mp_add_~nb~0 % 256) || 0 != mp_add_~carry~0 % 65536);mp_add_~partial_sum~0 := mp_add_~carry~0;mp_add_~carry~0 := 0; 16854#L75 assume mp_add_~i~0 % 256 < mp_add_~na~0 % 256; 16852#L76 assume 0 == mp_add_~i~0 % 256;mp_add_~partial_sum~0 := mp_add_~partial_sum~0 % 65536 + mp_add_~a0~0 % 256; 16853#L76-2 assume !(1 == mp_add_~i~0 % 256); 16848#L77-1 assume !(2 == mp_add_~i~0 % 256); 16849#L78-1 assume !(3 == mp_add_~i~0 % 256); 16842#L75-1 assume mp_add_~i~0 % 256 < mp_add_~nb~0 % 256; 16843#L82 assume 0 == mp_add_~i~0 % 256;mp_add_~partial_sum~0 := mp_add_~partial_sum~0 % 65536 + mp_add_~b0~0 % 256; 16832#L82-2 assume !(1 == mp_add_~i~0 % 256); 16833#L83-1 assume !(2 == mp_add_~i~0 % 256); 16821#L84-1 assume !(3 == mp_add_~i~0 % 256); 16822#L81 assume mp_add_~partial_sum~0 % 65536 > 255;mp_add_~partial_sum~0 := ~bitwiseAnd(mp_add_~partial_sum~0 % 65536, 255);mp_add_~carry~0 := 1; 16799#L87-1 [2021-10-21 20:01:11,286 INFO L793 eck$LassoCheckResult]: Loop: 16799#L87-1 assume 0 == mp_add_~i~0 % 256;mp_add_~r0~0 := mp_add_~partial_sum~0; 16797#L91-1 assume !(1 == mp_add_~i~0 % 256); 16795#L92-1 assume !(2 == mp_add_~i~0 % 256); 16793#L93-1 assume !(3 == mp_add_~i~0 % 256); 16791#L94-1 mp_add_~i~0 := 1 + mp_add_~i~0 % 256; 16789#L72-2 assume !!((mp_add_~i~0 % 256 < mp_add_~na~0 % 256 || mp_add_~i~0 % 256 < mp_add_~nb~0 % 256) || 0 != mp_add_~carry~0 % 65536);mp_add_~partial_sum~0 := mp_add_~carry~0;mp_add_~carry~0 := 0; 16785#L75 assume mp_add_~i~0 % 256 < mp_add_~na~0 % 256; 16782#L76 assume !(0 == mp_add_~i~0 % 256); 16779#L76-2 assume 1 == mp_add_~i~0 % 256;mp_add_~partial_sum~0 := mp_add_~partial_sum~0 % 65536 + mp_add_~a1~0 % 256; 16777#L77-1 assume !(2 == mp_add_~i~0 % 256); 16765#L78-1 assume !(3 == mp_add_~i~0 % 256); 16766#L75-1 assume mp_add_~i~0 % 256 < mp_add_~nb~0 % 256; 16772#L82 assume !(0 == mp_add_~i~0 % 256); 16771#L82-2 assume 1 == mp_add_~i~0 % 256;mp_add_~partial_sum~0 := mp_add_~partial_sum~0 % 65536 + mp_add_~b1~0 % 256; 16770#L83-1 assume !(2 == mp_add_~i~0 % 256); 16768#L84-1 assume !(3 == mp_add_~i~0 % 256); 16762#L81 assume mp_add_~partial_sum~0 % 65536 > 255;mp_add_~partial_sum~0 := ~bitwiseAnd(mp_add_~partial_sum~0 % 65536, 255);mp_add_~carry~0 := 1; 16759#L87-1 assume !(0 == mp_add_~i~0 % 256); 16756#L91-1 assume 1 == mp_add_~i~0 % 256;mp_add_~r1~0 := mp_add_~partial_sum~0; 16752#L92-1 assume !(2 == mp_add_~i~0 % 256); 16748#L93-1 assume !(3 == mp_add_~i~0 % 256); 16745#L94-1 mp_add_~i~0 := 1 + mp_add_~i~0 % 256; 16742#L72-2 assume !!((mp_add_~i~0 % 256 < mp_add_~na~0 % 256 || mp_add_~i~0 % 256 < mp_add_~nb~0 % 256) || 0 != mp_add_~carry~0 % 65536);mp_add_~partial_sum~0 := mp_add_~carry~0;mp_add_~carry~0 := 0; 16738#L75 assume mp_add_~i~0 % 256 < mp_add_~na~0 % 256; 16735#L76 assume !(0 == mp_add_~i~0 % 256); 16731#L76-2 assume !(1 == mp_add_~i~0 % 256); 16727#L77-1 assume 2 == mp_add_~i~0 % 256;mp_add_~partial_sum~0 := mp_add_~partial_sum~0 % 65536 + mp_add_~a2~0 % 256; 16721#L78-1 assume !(3 == mp_add_~i~0 % 256); 16716#L75-1 assume !(mp_add_~i~0 % 256 < mp_add_~nb~0 % 256); 16710#L81 assume mp_add_~partial_sum~0 % 65536 > 255;mp_add_~partial_sum~0 := ~bitwiseAnd(mp_add_~partial_sum~0 % 65536, 255);mp_add_~carry~0 := 1; 16708#L87-1 assume !(0 == mp_add_~i~0 % 256); 16706#L91-1 assume !(1 == mp_add_~i~0 % 256); 16694#L92-1 assume 2 == mp_add_~i~0 % 256;mp_add_~r2~0 := mp_add_~partial_sum~0; 16691#L93-1 assume !(3 == mp_add_~i~0 % 256); 16687#L94-1 mp_add_~i~0 := 1 + mp_add_~i~0 % 256; 16683#L72-2 assume !!((mp_add_~i~0 % 256 < mp_add_~na~0 % 256 || mp_add_~i~0 % 256 < mp_add_~nb~0 % 256) || 0 != mp_add_~carry~0 % 65536);mp_add_~partial_sum~0 := mp_add_~carry~0;mp_add_~carry~0 := 0; 16676#L75 assume !(mp_add_~i~0 % 256 < mp_add_~na~0 % 256); 16677#L75-1 assume !(mp_add_~i~0 % 256 < mp_add_~nb~0 % 256); 16653#L81 assume !(mp_add_~partial_sum~0 % 65536 > 255); 16644#L87-1 assume !(0 == mp_add_~i~0 % 256); 16894#L91-1 assume !(1 == mp_add_~i~0 % 256); 16891#L92-1 assume !(2 == mp_add_~i~0 % 256); 16889#L93-1 assume 3 == mp_add_~i~0 % 256;mp_add_~r3~0 := mp_add_~partial_sum~0; 16874#L94-1 mp_add_~i~0 := 1 + mp_add_~i~0 % 256; 16828#L72-2 assume !!((mp_add_~i~0 % 256 < mp_add_~na~0 % 256 || mp_add_~i~0 % 256 < mp_add_~nb~0 % 256) || 0 != mp_add_~carry~0 % 65536);mp_add_~partial_sum~0 := mp_add_~carry~0;mp_add_~carry~0 := 0; 16829#L75 assume mp_add_~i~0 % 256 < mp_add_~na~0 % 256; 16869#L76 assume !(0 == mp_add_~i~0 % 256); 16872#L76-2 assume !(1 == mp_add_~i~0 % 256); 16871#L77-1 assume !(2 == mp_add_~i~0 % 256); 16870#L78-1 assume !(3 == mp_add_~i~0 % 256); 16868#L75-1 assume !(mp_add_~i~0 % 256 < mp_add_~nb~0 % 256); 16861#L81 assume !(mp_add_~partial_sum~0 % 65536 > 255); 16860#L87-1 assume !(0 == mp_add_~i~0 % 256); 16859#L91-1 assume !(1 == mp_add_~i~0 % 256); 16858#L92-1 assume !(2 == mp_add_~i~0 % 256); 16850#L93-1 assume !(3 == mp_add_~i~0 % 256); 16689#L94-1 mp_add_~i~0 := 1 + mp_add_~i~0 % 256; 16685#L72-2 assume !!((mp_add_~i~0 % 256 < mp_add_~na~0 % 256 || mp_add_~i~0 % 256 < mp_add_~nb~0 % 256) || 0 != mp_add_~carry~0 % 65536);mp_add_~partial_sum~0 := mp_add_~carry~0;mp_add_~carry~0 := 0; 16680#L75 assume mp_add_~i~0 % 256 < mp_add_~na~0 % 256; 16672#L76 assume 0 == mp_add_~i~0 % 256;mp_add_~partial_sum~0 := mp_add_~partial_sum~0 % 65536 + mp_add_~a0~0 % 256; 16673#L76-2 assume !(1 == mp_add_~i~0 % 256); 16851#L77-1 assume !(2 == mp_add_~i~0 % 256); 16846#L78-1 assume !(3 == mp_add_~i~0 % 256); 16847#L75-1 assume mp_add_~i~0 % 256 < mp_add_~nb~0 % 256; 16838#L82 assume 0 == mp_add_~i~0 % 256;mp_add_~partial_sum~0 := mp_add_~partial_sum~0 % 65536 + mp_add_~b0~0 % 256; 16839#L82-2 assume !(1 == mp_add_~i~0 % 256); 16826#L83-1 assume !(2 == mp_add_~i~0 % 256); 16827#L84-1 assume !(3 == mp_add_~i~0 % 256); 16801#L81 assume mp_add_~partial_sum~0 % 65536 > 255;mp_add_~partial_sum~0 := ~bitwiseAnd(mp_add_~partial_sum~0 % 65536, 255);mp_add_~carry~0 := 1; 16799#L87-1 [2021-10-21 20:01:11,287 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:01:11,287 INFO L82 PathProgramCache]: Analyzing trace with hash 389365736, now seen corresponding path program 14 times [2021-10-21 20:01:11,287 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:01:11,287 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1516531184] [2021-10-21 20:01:11,288 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:01:11,288 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:01:11,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:01:11,301 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 20:01:11,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:01:11,316 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 20:01:11,316 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:01:11,316 INFO L82 PathProgramCache]: Analyzing trace with hash 733714482, now seen corresponding path program 2 times [2021-10-21 20:01:11,317 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:01:11,317 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [860724550] [2021-10-21 20:01:11,317 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:01:11,317 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:01:11,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:01:11,422 INFO L134 CoverageAnalysis]: Checked inductivity of 118 backedges. 88 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2021-10-21 20:01:11,422 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 20:01:11,423 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [860724550] [2021-10-21 20:01:11,423 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [860724550] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-21 20:01:11,423 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-21 20:01:11,423 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-10-21 20:01:11,423 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [989059808] [2021-10-21 20:01:11,424 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-10-21 20:01:11,424 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 20:01:11,424 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-10-21 20:01:11,425 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2021-10-21 20:01:11,425 INFO L87 Difference]: Start difference. First operand 712 states and 834 transitions. cyclomatic complexity: 128 Second operand has 8 states, 8 states have (on average 6.875) internal successors, (55), 8 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:01:11,959 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 20:01:11,959 INFO L93 Difference]: Finished difference Result 936 states and 1081 transitions. [2021-10-21 20:01:11,959 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-10-21 20:01:11,960 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 936 states and 1081 transitions. [2021-10-21 20:01:11,966 INFO L131 ngComponentsAnalysis]: Automaton has 7 accepting balls. 842 [2021-10-21 20:01:11,973 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 936 states to 918 states and 1062 transitions. [2021-10-21 20:01:11,973 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 918 [2021-10-21 20:01:11,974 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 918 [2021-10-21 20:01:11,974 INFO L73 IsDeterministic]: Start isDeterministic. Operand 918 states and 1062 transitions. [2021-10-21 20:01:11,976 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-21 20:01:11,976 INFO L681 BuchiCegarLoop]: Abstraction has 918 states and 1062 transitions. [2021-10-21 20:01:11,977 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 918 states and 1062 transitions. [2021-10-21 20:01:11,995 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 918 to 829. [2021-10-21 20:01:11,997 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 829 states, 829 states have (on average 1.1700844390832328) internal successors, (970), 828 states have internal predecessors, (970), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:01:11,999 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 829 states to 829 states and 970 transitions. [2021-10-21 20:01:12,000 INFO L704 BuchiCegarLoop]: Abstraction has 829 states and 970 transitions. [2021-10-21 20:01:12,000 INFO L587 BuchiCegarLoop]: Abstraction has 829 states and 970 transitions. [2021-10-21 20:01:12,000 INFO L425 BuchiCegarLoop]: ======== Iteration 23============ [2021-10-21 20:01:12,000 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 829 states and 970 transitions. [2021-10-21 20:01:12,004 INFO L131 ngComponentsAnalysis]: Automaton has 7 accepting balls. 802 [2021-10-21 20:01:12,005 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-21 20:01:12,005 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-21 20:01:12,005 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 20:01:12,006 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 20:01:12,006 INFO L791 eck$LassoCheckResult]: Stem: 18266#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string0.base, #t~string0.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string0.base, #t~string0.offset, 1);call write~init~int(0, #t~string0.base, 1 + #t~string0.offset, 1);call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(15); 18254#L-1 havoc main_#res;havoc main_#t~nondet3, main_#t~ret4, main_~a~0, main_~b~0, main_~r~1;havoc main_~a~0;havoc main_~b~0;havoc main_~r~1;main_~b~0 := main_#t~nondet3;havoc main_#t~nondet3;main_~a~0 := 234770789;mp_add_#in~a, mp_add_#in~b := main_~a~0, main_~b~0;havoc mp_add_#res;havoc mp_add_~a, mp_add_~b, mp_add_~a0~0, mp_add_~a1~0, mp_add_~a2~0, mp_add_~a3~0, mp_add_~b0~0, mp_add_~b1~0, mp_add_~b2~0, mp_add_~b3~0, mp_add_~r0~0, mp_add_~r1~0, mp_add_~r2~0, mp_add_~r3~0, mp_add_~carry~0, mp_add_~partial_sum~0, mp_add_~r~0, mp_add_~i~0, mp_add_~na~0, mp_add_~nb~0;mp_add_~a := mp_add_#in~a;mp_add_~b := mp_add_#in~b;havoc mp_add_~a0~0;havoc mp_add_~a1~0;havoc mp_add_~a2~0;havoc mp_add_~a3~0;havoc mp_add_~b0~0;havoc mp_add_~b1~0;havoc mp_add_~b2~0;havoc mp_add_~b3~0;havoc mp_add_~r0~0;havoc mp_add_~r1~0;havoc mp_add_~r2~0;havoc mp_add_~r3~0;havoc mp_add_~carry~0;havoc mp_add_~partial_sum~0;havoc mp_add_~r~0;havoc mp_add_~i~0;havoc mp_add_~na~0;havoc mp_add_~nb~0;mp_add_~a0~0 := mp_add_~a;mp_add_~a1~0 := mp_add_~a / 256;mp_add_~a2~0 := mp_add_~a / 65536;mp_add_~a3~0 := mp_add_~a / 16777216;mp_add_~b0~0 := mp_add_~b;mp_add_~b1~0 := mp_add_~b / 256;mp_add_~b2~0 := mp_add_~b / 65536;mp_add_~b3~0 := mp_add_~b / 16777216;mp_add_~na~0 := 4; 18244#L51 assume !(0 == mp_add_~a3~0 % 256); 18245#L51-1 mp_add_~nb~0 := 4; 18246#L61 assume !(0 == mp_add_~b3~0 % 256); 18247#L61-1 mp_add_~carry~0 := 0;mp_add_~i~0 := 0; 18262#L72-2 assume !!((mp_add_~i~0 % 256 < mp_add_~na~0 % 256 || mp_add_~i~0 % 256 < mp_add_~nb~0 % 256) || 0 != mp_add_~carry~0 % 65536);mp_add_~partial_sum~0 := mp_add_~carry~0;mp_add_~carry~0 := 0; 18593#L75 assume mp_add_~i~0 % 256 < mp_add_~na~0 % 256; 18591#L76 assume 0 == mp_add_~i~0 % 256;mp_add_~partial_sum~0 := mp_add_~partial_sum~0 % 65536 + mp_add_~a0~0 % 256; 18588#L76-2 assume !(1 == mp_add_~i~0 % 256); 18554#L77-1 assume !(2 == mp_add_~i~0 % 256); 18555#L78-1 assume !(3 == mp_add_~i~0 % 256); 18542#L75-1 assume mp_add_~i~0 % 256 < mp_add_~nb~0 % 256; 18543#L82 assume 0 == mp_add_~i~0 % 256;mp_add_~partial_sum~0 := mp_add_~partial_sum~0 % 65536 + mp_add_~b0~0 % 256; 18516#L82-2 assume !(1 == mp_add_~i~0 % 256); 18517#L83-1 assume !(2 == mp_add_~i~0 % 256); 18503#L84-1 assume !(3 == mp_add_~i~0 % 256); 18504#L81 assume mp_add_~partial_sum~0 % 65536 > 255;mp_add_~partial_sum~0 := ~bitwiseAnd(mp_add_~partial_sum~0 % 65536, 255);mp_add_~carry~0 := 1; 18481#L87-1 [2021-10-21 20:01:12,006 INFO L793 eck$LassoCheckResult]: Loop: 18481#L87-1 assume 0 == mp_add_~i~0 % 256;mp_add_~r0~0 := mp_add_~partial_sum~0; 18479#L91-1 assume !(1 == mp_add_~i~0 % 256); 18477#L92-1 assume !(2 == mp_add_~i~0 % 256); 18475#L93-1 assume !(3 == mp_add_~i~0 % 256); 18473#L94-1 mp_add_~i~0 := 1 + mp_add_~i~0 % 256; 18471#L72-2 assume !!((mp_add_~i~0 % 256 < mp_add_~na~0 % 256 || mp_add_~i~0 % 256 < mp_add_~nb~0 % 256) || 0 != mp_add_~carry~0 % 65536);mp_add_~partial_sum~0 := mp_add_~carry~0;mp_add_~carry~0 := 0; 18467#L75 assume mp_add_~i~0 % 256 < mp_add_~na~0 % 256; 18464#L76 assume !(0 == mp_add_~i~0 % 256); 18461#L76-2 assume 1 == mp_add_~i~0 % 256;mp_add_~partial_sum~0 := mp_add_~partial_sum~0 % 65536 + mp_add_~a1~0 % 256; 18459#L77-1 assume !(2 == mp_add_~i~0 % 256); 18455#L78-1 assume !(3 == mp_add_~i~0 % 256); 18448#L75-1 assume mp_add_~i~0 % 256 < mp_add_~nb~0 % 256; 18444#L82 assume !(0 == mp_add_~i~0 % 256); 18440#L82-2 assume 1 == mp_add_~i~0 % 256;mp_add_~partial_sum~0 := mp_add_~partial_sum~0 % 65536 + mp_add_~b1~0 % 256; 18437#L83-1 assume !(2 == mp_add_~i~0 % 256); 18434#L84-1 assume !(3 == mp_add_~i~0 % 256); 18431#L81 assume mp_add_~partial_sum~0 % 65536 > 255;mp_add_~partial_sum~0 := ~bitwiseAnd(mp_add_~partial_sum~0 % 65536, 255);mp_add_~carry~0 := 1; 18428#L87-1 assume !(0 == mp_add_~i~0 % 256); 18424#L91-1 assume 1 == mp_add_~i~0 % 256;mp_add_~r1~0 := mp_add_~partial_sum~0; 18421#L92-1 assume !(2 == mp_add_~i~0 % 256); 18417#L93-1 assume !(3 == mp_add_~i~0 % 256); 18414#L94-1 mp_add_~i~0 := 1 + mp_add_~i~0 % 256; 18411#L72-2 assume !!((mp_add_~i~0 % 256 < mp_add_~na~0 % 256 || mp_add_~i~0 % 256 < mp_add_~nb~0 % 256) || 0 != mp_add_~carry~0 % 65536);mp_add_~partial_sum~0 := mp_add_~carry~0;mp_add_~carry~0 := 0; 18407#L75 assume mp_add_~i~0 % 256 < mp_add_~na~0 % 256; 18405#L76 assume !(0 == mp_add_~i~0 % 256); 18401#L76-2 assume !(1 == mp_add_~i~0 % 256); 18399#L77-1 assume 2 == mp_add_~i~0 % 256;mp_add_~partial_sum~0 := mp_add_~partial_sum~0 % 65536 + mp_add_~a2~0 % 256; 18396#L78-1 assume !(3 == mp_add_~i~0 % 256); 18392#L75-1 assume !(mp_add_~i~0 % 256 < mp_add_~nb~0 % 256); 18388#L81 assume mp_add_~partial_sum~0 % 65536 > 255;mp_add_~partial_sum~0 := ~bitwiseAnd(mp_add_~partial_sum~0 % 65536, 255);mp_add_~carry~0 := 1; 18386#L87-1 assume !(0 == mp_add_~i~0 % 256); 18383#L91-1 assume !(1 == mp_add_~i~0 % 256); 18375#L92-1 assume 2 == mp_add_~i~0 % 256;mp_add_~r2~0 := mp_add_~partial_sum~0; 18372#L93-1 assume !(3 == mp_add_~i~0 % 256); 18368#L94-1 mp_add_~i~0 := 1 + mp_add_~i~0 % 256; 18364#L72-2 assume !!((mp_add_~i~0 % 256 < mp_add_~na~0 % 256 || mp_add_~i~0 % 256 < mp_add_~nb~0 % 256) || 0 != mp_add_~carry~0 % 65536);mp_add_~partial_sum~0 := mp_add_~carry~0;mp_add_~carry~0 := 0; 18358#L75 assume mp_add_~i~0 % 256 < mp_add_~na~0 % 256; 18353#L76 assume !(0 == mp_add_~i~0 % 256); 18348#L76-2 assume !(1 == mp_add_~i~0 % 256); 18343#L77-1 assume !(2 == mp_add_~i~0 % 256); 18338#L78-1 assume 3 == mp_add_~i~0 % 256;mp_add_~partial_sum~0 := mp_add_~partial_sum~0 % 65536 + mp_add_~a3~0 % 256; 18334#L75-1 assume !(mp_add_~i~0 % 256 < mp_add_~nb~0 % 256); 18329#L81 assume mp_add_~partial_sum~0 % 65536 > 255;mp_add_~partial_sum~0 := ~bitwiseAnd(mp_add_~partial_sum~0 % 65536, 255);mp_add_~carry~0 := 1; 18323#L87-1 assume !(0 == mp_add_~i~0 % 256); 18324#L91-1 assume !(1 == mp_add_~i~0 % 256); 18319#L92-1 assume !(2 == mp_add_~i~0 % 256); 18320#L93-1 assume 3 == mp_add_~i~0 % 256;mp_add_~r3~0 := mp_add_~partial_sum~0; 18315#L94-1 mp_add_~i~0 := 1 + mp_add_~i~0 % 256; 18316#L72-2 assume !!((mp_add_~i~0 % 256 < mp_add_~na~0 % 256 || mp_add_~i~0 % 256 < mp_add_~nb~0 % 256) || 0 != mp_add_~carry~0 % 65536);mp_add_~partial_sum~0 := mp_add_~carry~0;mp_add_~carry~0 := 0; 18309#L75 assume !(mp_add_~i~0 % 256 < mp_add_~na~0 % 256); 18310#L75-1 assume !(mp_add_~i~0 % 256 < mp_add_~nb~0 % 256); 18599#L81 assume !(mp_add_~partial_sum~0 % 65536 > 255); 18598#L87-1 assume !(0 == mp_add_~i~0 % 256); 18597#L91-1 assume !(1 == mp_add_~i~0 % 256); 18596#L92-1 assume !(2 == mp_add_~i~0 % 256); 18595#L93-1 assume !(3 == mp_add_~i~0 % 256); 18370#L94-1 mp_add_~i~0 := 1 + mp_add_~i~0 % 256; 18366#L72-2 assume !!((mp_add_~i~0 % 256 < mp_add_~na~0 % 256 || mp_add_~i~0 % 256 < mp_add_~nb~0 % 256) || 0 != mp_add_~carry~0 % 65536);mp_add_~partial_sum~0 := mp_add_~carry~0;mp_add_~carry~0 := 0; 18361#L75 assume mp_add_~i~0 % 256 < mp_add_~na~0 % 256; 18355#L76 assume 0 == mp_add_~i~0 % 256;mp_add_~partial_sum~0 := mp_add_~partial_sum~0 % 65536 + mp_add_~a0~0 % 256; 18356#L76-2 assume !(1 == mp_add_~i~0 % 256); 18558#L77-1 assume !(2 == mp_add_~i~0 % 256); 18549#L78-1 assume !(3 == mp_add_~i~0 % 256); 18550#L75-1 assume mp_add_~i~0 % 256 < mp_add_~nb~0 % 256; 18535#L82 assume 0 == mp_add_~i~0 % 256;mp_add_~partial_sum~0 := mp_add_~partial_sum~0 % 65536 + mp_add_~b0~0 % 256; 18536#L82-2 assume !(1 == mp_add_~i~0 % 256); 18510#L83-1 assume !(2 == mp_add_~i~0 % 256); 18511#L84-1 assume !(3 == mp_add_~i~0 % 256); 18484#L81 assume mp_add_~partial_sum~0 % 65536 > 255;mp_add_~partial_sum~0 := ~bitwiseAnd(mp_add_~partial_sum~0 % 65536, 255);mp_add_~carry~0 := 1; 18481#L87-1 [2021-10-21 20:01:12,007 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:01:12,007 INFO L82 PathProgramCache]: Analyzing trace with hash 389365736, now seen corresponding path program 15 times [2021-10-21 20:01:12,007 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:01:12,007 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [398765958] [2021-10-21 20:01:12,007 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:01:12,007 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:01:12,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:01:12,022 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 20:01:12,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:01:12,045 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 20:01:12,046 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:01:12,046 INFO L82 PathProgramCache]: Analyzing trace with hash -382324270, now seen corresponding path program 1 times [2021-10-21 20:01:12,046 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:01:12,046 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [502582522] [2021-10-21 20:01:12,046 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:01:12,047 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:01:12,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:01:12,143 INFO L134 CoverageAnalysis]: Checked inductivity of 118 backedges. 25 proven. 93 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 20:01:12,143 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 20:01:12,144 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [502582522] [2021-10-21 20:01:12,144 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [502582522] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 20:01:12,146 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [390748863] [2021-10-21 20:01:12,146 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:01:12,147 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-21 20:01:12,147 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:01:12,154 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-21 20:01:12,174 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2021-10-21 20:01:12,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:01:12,345 INFO L263 TraceCheckSpWp]: Trace formula consists of 134 conjuncts, 7 conjunts are in the unsatisfiable core [2021-10-21 20:01:12,346 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 20:01:25,618 INFO L134 CoverageAnalysis]: Checked inductivity of 118 backedges. 74 proven. 9 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2021-10-21 20:01:25,619 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [390748863] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 20:01:25,619 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-21 20:01:25,619 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 5] total 10 [2021-10-21 20:01:25,619 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1285545057] [2021-10-21 20:01:25,620 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-10-21 20:01:25,620 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 20:01:25,620 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-10-21 20:01:25,620 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=70, Unknown=1, NotChecked=0, Total=90 [2021-10-21 20:01:25,621 INFO L87 Difference]: Start difference. First operand 829 states and 970 transitions. cyclomatic complexity: 148 Second operand has 10 states, 10 states have (on average 10.6) internal successors, (106), 10 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:02:24,823 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 20:02:24,824 INFO L93 Difference]: Finished difference Result 1188 states and 1357 transitions. [2021-10-21 20:02:24,824 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-10-21 20:02:24,824 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 1188 states and 1357 transitions. [2021-10-21 20:02:24,835 INFO L131 ngComponentsAnalysis]: Automaton has 7 accepting balls. 1147 [2021-10-21 20:02:24,844 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 1188 states to 1174 states and 1333 transitions. [2021-10-21 20:02:24,845 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 1174 [2021-10-21 20:02:24,846 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 1174 [2021-10-21 20:02:24,846 INFO L73 IsDeterministic]: Start isDeterministic. Operand 1174 states and 1333 transitions. [2021-10-21 20:02:24,848 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-21 20:02:24,848 INFO L681 BuchiCegarLoop]: Abstraction has 1174 states and 1333 transitions. [2021-10-21 20:02:24,849 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1174 states and 1333 transitions. [2021-10-21 20:02:24,865 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1174 to 1001. [2021-10-21 20:02:24,867 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1001 states, 1001 states have (on average 1.1468531468531469) internal successors, (1148), 1000 states have internal predecessors, (1148), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:02:24,871 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1001 states to 1001 states and 1148 transitions. [2021-10-21 20:02:24,871 INFO L704 BuchiCegarLoop]: Abstraction has 1001 states and 1148 transitions. [2021-10-21 20:02:24,871 INFO L587 BuchiCegarLoop]: Abstraction has 1001 states and 1148 transitions. [2021-10-21 20:02:24,871 INFO L425 BuchiCegarLoop]: ======== Iteration 24============ [2021-10-21 20:02:24,871 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 1001 states and 1148 transitions. [2021-10-21 20:02:24,879 INFO L131 ngComponentsAnalysis]: Automaton has 7 accepting balls. 974 [2021-10-21 20:02:24,879 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-21 20:02:24,879 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-21 20:02:24,880 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 20:02:24,880 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [7, 7, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 4, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 20:02:24,881 INFO L791 eck$LassoCheckResult]: Stem: 20496#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string0.base, #t~string0.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string0.base, #t~string0.offset, 1);call write~init~int(0, #t~string0.base, 1 + #t~string0.offset, 1);call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(15); 20487#L-1 havoc main_#res;havoc main_#t~nondet3, main_#t~ret4, main_~a~0, main_~b~0, main_~r~1;havoc main_~a~0;havoc main_~b~0;havoc main_~r~1;main_~b~0 := main_#t~nondet3;havoc main_#t~nondet3;main_~a~0 := 234770789;mp_add_#in~a, mp_add_#in~b := main_~a~0, main_~b~0;havoc mp_add_#res;havoc mp_add_~a, mp_add_~b, mp_add_~a0~0, mp_add_~a1~0, mp_add_~a2~0, mp_add_~a3~0, mp_add_~b0~0, mp_add_~b1~0, mp_add_~b2~0, mp_add_~b3~0, mp_add_~r0~0, mp_add_~r1~0, mp_add_~r2~0, mp_add_~r3~0, mp_add_~carry~0, mp_add_~partial_sum~0, mp_add_~r~0, mp_add_~i~0, mp_add_~na~0, mp_add_~nb~0;mp_add_~a := mp_add_#in~a;mp_add_~b := mp_add_#in~b;havoc mp_add_~a0~0;havoc mp_add_~a1~0;havoc mp_add_~a2~0;havoc mp_add_~a3~0;havoc mp_add_~b0~0;havoc mp_add_~b1~0;havoc mp_add_~b2~0;havoc mp_add_~b3~0;havoc mp_add_~r0~0;havoc mp_add_~r1~0;havoc mp_add_~r2~0;havoc mp_add_~r3~0;havoc mp_add_~carry~0;havoc mp_add_~partial_sum~0;havoc mp_add_~r~0;havoc mp_add_~i~0;havoc mp_add_~na~0;havoc mp_add_~nb~0;mp_add_~a0~0 := mp_add_~a;mp_add_~a1~0 := mp_add_~a / 256;mp_add_~a2~0 := mp_add_~a / 65536;mp_add_~a3~0 := mp_add_~a / 16777216;mp_add_~b0~0 := mp_add_~b;mp_add_~b1~0 := mp_add_~b / 256;mp_add_~b2~0 := mp_add_~b / 65536;mp_add_~b3~0 := mp_add_~b / 16777216;mp_add_~na~0 := 4; 20478#L51 assume !(0 == mp_add_~a3~0 % 256); 20479#L51-1 mp_add_~nb~0 := 4; 20480#L61 assume !(0 == mp_add_~b3~0 % 256); 20481#L61-1 mp_add_~carry~0 := 0;mp_add_~i~0 := 0; 20494#L72-2 assume !!((mp_add_~i~0 % 256 < mp_add_~na~0 % 256 || mp_add_~i~0 % 256 < mp_add_~nb~0 % 256) || 0 != mp_add_~carry~0 % 65536);mp_add_~partial_sum~0 := mp_add_~carry~0;mp_add_~carry~0 := 0; 20860#L75 assume mp_add_~i~0 % 256 < mp_add_~na~0 % 256; 20857#L76 assume 0 == mp_add_~i~0 % 256;mp_add_~partial_sum~0 := mp_add_~partial_sum~0 % 65536 + mp_add_~a0~0 % 256; 20858#L76-2 assume !(1 == mp_add_~i~0 % 256); 20852#L77-1 assume !(2 == mp_add_~i~0 % 256); 20853#L78-1 assume !(3 == mp_add_~i~0 % 256); 20847#L75-1 assume mp_add_~i~0 % 256 < mp_add_~nb~0 % 256; 20845#L82 assume 0 == mp_add_~i~0 % 256;mp_add_~partial_sum~0 := mp_add_~partial_sum~0 % 65536 + mp_add_~b0~0 % 256; 20843#L82-2 assume !(1 == mp_add_~i~0 % 256); 20842#L83-1 assume !(2 == mp_add_~i~0 % 256); 20840#L84-1 assume !(3 == mp_add_~i~0 % 256); 20828#L81 assume mp_add_~partial_sum~0 % 65536 > 255;mp_add_~partial_sum~0 := ~bitwiseAnd(mp_add_~partial_sum~0 % 65536, 255);mp_add_~carry~0 := 1; 20826#L87-1 [2021-10-21 20:02:24,881 INFO L793 eck$LassoCheckResult]: Loop: 20826#L87-1 assume 0 == mp_add_~i~0 % 256;mp_add_~r0~0 := mp_add_~partial_sum~0; 20824#L91-1 assume !(1 == mp_add_~i~0 % 256); 20822#L92-1 assume !(2 == mp_add_~i~0 % 256); 20820#L93-1 assume !(3 == mp_add_~i~0 % 256); 20815#L94-1 mp_add_~i~0 := 1 + mp_add_~i~0 % 256; 20816#L72-2 assume !!((mp_add_~i~0 % 256 < mp_add_~na~0 % 256 || mp_add_~i~0 % 256 < mp_add_~nb~0 % 256) || 0 != mp_add_~carry~0 % 65536);mp_add_~partial_sum~0 := mp_add_~carry~0;mp_add_~carry~0 := 0; 20808#L75 assume mp_add_~i~0 % 256 < mp_add_~na~0 % 256; 20809#L76 assume !(0 == mp_add_~i~0 % 256); 20798#L76-2 assume 1 == mp_add_~i~0 % 256;mp_add_~partial_sum~0 := mp_add_~partial_sum~0 % 65536 + mp_add_~a1~0 % 256; 20799#L77-1 assume !(2 == mp_add_~i~0 % 256); 20789#L78-1 assume !(3 == mp_add_~i~0 % 256); 20790#L75-1 assume mp_add_~i~0 % 256 < mp_add_~nb~0 % 256; 20814#L82 assume !(0 == mp_add_~i~0 % 256); 20811#L82-2 assume 1 == mp_add_~i~0 % 256;mp_add_~partial_sum~0 := mp_add_~partial_sum~0 % 65536 + mp_add_~b1~0 % 256; 20807#L83-1 assume !(2 == mp_add_~i~0 % 256); 20800#L84-1 assume !(3 == mp_add_~i~0 % 256); 20795#L81 assume mp_add_~partial_sum~0 % 65536 > 255;mp_add_~partial_sum~0 := ~bitwiseAnd(mp_add_~partial_sum~0 % 65536, 255);mp_add_~carry~0 := 1; 20791#L87-1 assume !(0 == mp_add_~i~0 % 256); 20787#L91-1 assume 1 == mp_add_~i~0 % 256;mp_add_~r1~0 := mp_add_~partial_sum~0; 20785#L92-1 assume !(2 == mp_add_~i~0 % 256); 20782#L93-1 assume !(3 == mp_add_~i~0 % 256); 20778#L94-1 mp_add_~i~0 := 1 + mp_add_~i~0 % 256; 20776#L72-2 assume !!((mp_add_~i~0 % 256 < mp_add_~na~0 % 256 || mp_add_~i~0 % 256 < mp_add_~nb~0 % 256) || 0 != mp_add_~carry~0 % 65536);mp_add_~partial_sum~0 := mp_add_~carry~0;mp_add_~carry~0 := 0; 20763#L75 assume mp_add_~i~0 % 256 < mp_add_~na~0 % 256; 20760#L76 assume !(0 == mp_add_~i~0 % 256); 20757#L76-2 assume !(1 == mp_add_~i~0 % 256); 20751#L77-1 assume 2 == mp_add_~i~0 % 256;mp_add_~partial_sum~0 := mp_add_~partial_sum~0 % 65536 + mp_add_~a2~0 % 256; 20749#L78-1 assume !(3 == mp_add_~i~0 % 256); 20746#L75-1 assume !(mp_add_~i~0 % 256 < mp_add_~nb~0 % 256); 20744#L81 assume mp_add_~partial_sum~0 % 65536 > 255;mp_add_~partial_sum~0 := ~bitwiseAnd(mp_add_~partial_sum~0 % 65536, 255);mp_add_~carry~0 := 1; 20742#L87-1 assume !(0 == mp_add_~i~0 % 256); 20740#L91-1 assume !(1 == mp_add_~i~0 % 256); 20737#L92-1 assume 2 == mp_add_~i~0 % 256;mp_add_~r2~0 := mp_add_~partial_sum~0; 20734#L93-1 assume !(3 == mp_add_~i~0 % 256); 20733#L94-1 mp_add_~i~0 := 1 + mp_add_~i~0 % 256; 20731#L72-2 assume !!((mp_add_~i~0 % 256 < mp_add_~na~0 % 256 || mp_add_~i~0 % 256 < mp_add_~nb~0 % 256) || 0 != mp_add_~carry~0 % 65536);mp_add_~partial_sum~0 := mp_add_~carry~0;mp_add_~carry~0 := 0; 20729#L75 assume mp_add_~i~0 % 256 < mp_add_~na~0 % 256; 20727#L76 assume !(0 == mp_add_~i~0 % 256); 20725#L76-2 assume !(1 == mp_add_~i~0 % 256); 20724#L77-1 assume !(2 == mp_add_~i~0 % 256); 20722#L78-1 assume 3 == mp_add_~i~0 % 256;mp_add_~partial_sum~0 := mp_add_~partial_sum~0 % 65536 + mp_add_~a3~0 % 256; 20644#L75-1 assume !(mp_add_~i~0 % 256 < mp_add_~nb~0 % 256); 20640#L81 assume mp_add_~partial_sum~0 % 65536 > 255;mp_add_~partial_sum~0 := ~bitwiseAnd(mp_add_~partial_sum~0 % 65536, 255);mp_add_~carry~0 := 1; 20638#L87-1 assume !(0 == mp_add_~i~0 % 256); 20636#L91-1 assume !(1 == mp_add_~i~0 % 256); 20634#L92-1 assume !(2 == mp_add_~i~0 % 256); 20632#L93-1 assume 3 == mp_add_~i~0 % 256;mp_add_~r3~0 := mp_add_~partial_sum~0; 20612#L94-1 mp_add_~i~0 := 1 + mp_add_~i~0 % 256; 20608#L72-2 assume !!((mp_add_~i~0 % 256 < mp_add_~na~0 % 256 || mp_add_~i~0 % 256 < mp_add_~nb~0 % 256) || 0 != mp_add_~carry~0 % 65536);mp_add_~partial_sum~0 := mp_add_~carry~0;mp_add_~carry~0 := 0; 20603#L75 assume !(mp_add_~i~0 % 256 < mp_add_~na~0 % 256); 20587#L75-1 assume !(mp_add_~i~0 % 256 < mp_add_~nb~0 % 256); 20584#L81 assume !(mp_add_~partial_sum~0 % 65536 > 255); 20582#L87-1 assume !(0 == mp_add_~i~0 % 256); 20580#L91-1 assume !(1 == mp_add_~i~0 % 256); 20578#L92-1 assume !(2 == mp_add_~i~0 % 256); 20576#L93-1 assume !(3 == mp_add_~i~0 % 256); 20574#L94-1 mp_add_~i~0 := 1 + mp_add_~i~0 % 256; 20572#L72-2 assume !!((mp_add_~i~0 % 256 < mp_add_~na~0 % 256 || mp_add_~i~0 % 256 < mp_add_~nb~0 % 256) || 0 != mp_add_~carry~0 % 65536);mp_add_~partial_sum~0 := mp_add_~carry~0;mp_add_~carry~0 := 0; 20569#L75 assume mp_add_~i~0 % 256 < mp_add_~na~0 % 256; 20567#L76 assume !(0 == mp_add_~i~0 % 256); 20565#L76-2 assume !(1 == mp_add_~i~0 % 256); 20563#L77-1 assume !(2 == mp_add_~i~0 % 256); 20561#L78-1 assume !(3 == mp_add_~i~0 % 256); 20559#L75-1 assume !(mp_add_~i~0 % 256 < mp_add_~nb~0 % 256); 20552#L81 assume !(mp_add_~partial_sum~0 % 65536 > 255); 20550#L87-1 assume !(0 == mp_add_~i~0 % 256); 20551#L91-1 assume !(1 == mp_add_~i~0 % 256); 20546#L92-1 assume !(2 == mp_add_~i~0 % 256); 20547#L93-1 assume !(3 == mp_add_~i~0 % 256); 20540#L94-1 mp_add_~i~0 := 1 + mp_add_~i~0 % 256; 20541#L72-2 assume !!((mp_add_~i~0 % 256 < mp_add_~na~0 % 256 || mp_add_~i~0 % 256 < mp_add_~nb~0 % 256) || 0 != mp_add_~carry~0 % 65536);mp_add_~partial_sum~0 := mp_add_~carry~0;mp_add_~carry~0 := 0; 20534#L75 assume mp_add_~i~0 % 256 < mp_add_~na~0 % 256; 20533#L76 assume !(0 == mp_add_~i~0 % 256); 20531#L76-2 assume !(1 == mp_add_~i~0 % 256); 20532#L77-1 assume !(2 == mp_add_~i~0 % 256); 20771#L78-1 assume !(3 == mp_add_~i~0 % 256); 20768#L75-1 assume !(mp_add_~i~0 % 256 < mp_add_~nb~0 % 256); 20762#L81 assume !(mp_add_~partial_sum~0 % 65536 > 255); 20759#L87-1 assume !(0 == mp_add_~i~0 % 256); 20756#L91-1 assume !(1 == mp_add_~i~0 % 256); 20755#L92-1 assume !(2 == mp_add_~i~0 % 256); 20754#L93-1 assume !(3 == mp_add_~i~0 % 256); 20542#L94-1 mp_add_~i~0 := 1 + mp_add_~i~0 % 256; 20543#L72-2 assume !!((mp_add_~i~0 % 256 < mp_add_~na~0 % 256 || mp_add_~i~0 % 256 < mp_add_~nb~0 % 256) || 0 != mp_add_~carry~0 % 65536);mp_add_~partial_sum~0 := mp_add_~carry~0;mp_add_~carry~0 := 0; 20689#L75 assume mp_add_~i~0 % 256 < mp_add_~na~0 % 256; 20683#L76 assume 0 == mp_add_~i~0 % 256;mp_add_~partial_sum~0 := mp_add_~partial_sum~0 % 65536 + mp_add_~a0~0 % 256; 20684#L76-2 assume !(1 == mp_add_~i~0 % 256); 20855#L77-1 assume !(2 == mp_add_~i~0 % 256); 20849#L78-1 assume !(3 == mp_add_~i~0 % 256); 20850#L75-1 assume mp_add_~i~0 % 256 < mp_add_~nb~0 % 256; 20879#L82 assume 0 == mp_add_~i~0 % 256;mp_add_~partial_sum~0 := mp_add_~partial_sum~0 % 65536 + mp_add_~b0~0 % 256; 21474#L82-2 assume !(1 == mp_add_~i~0 % 256); 21473#L83-1 assume !(2 == mp_add_~i~0 % 256); 21472#L84-1 assume !(3 == mp_add_~i~0 % 256); 21471#L81 assume mp_add_~partial_sum~0 % 65536 > 255;mp_add_~partial_sum~0 := ~bitwiseAnd(mp_add_~partial_sum~0 % 65536, 255);mp_add_~carry~0 := 1; 20826#L87-1 [2021-10-21 20:02:24,881 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:02:24,882 INFO L82 PathProgramCache]: Analyzing trace with hash 389365736, now seen corresponding path program 16 times [2021-10-21 20:02:24,882 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:02:24,882 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [297765808] [2021-10-21 20:02:24,882 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:02:24,882 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:02:24,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:02:24,939 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 20:02:24,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:02:24,958 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 20:02:24,959 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:02:24,959 INFO L82 PathProgramCache]: Analyzing trace with hash 1186296946, now seen corresponding path program 2 times [2021-10-21 20:02:24,959 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:02:24,959 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [840668467] [2021-10-21 20:02:24,959 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:02:24,960 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:02:24,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:02:25,273 INFO L134 CoverageAnalysis]: Checked inductivity of 253 backedges. 192 proven. 9 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2021-10-21 20:02:25,273 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 20:02:25,273 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [840668467] [2021-10-21 20:02:25,273 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [840668467] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 20:02:25,273 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1834528552] [2021-10-21 20:02:25,273 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-21 20:02:25,273 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-21 20:02:25,274 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:02:25,276 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-21 20:02:25,279 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2021-10-21 20:02:25,490 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-10-21 20:02:25,490 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-21 20:02:25,491 INFO L263 TraceCheckSpWp]: Trace formula consists of 170 conjuncts, 8 conjunts are in the unsatisfiable core [2021-10-21 20:02:25,493 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 20:02:26,573 INFO L134 CoverageAnalysis]: Checked inductivity of 253 backedges. 103 proven. 1 refuted. 0 times theorem prover too weak. 149 trivial. 0 not checked. [2021-10-21 20:02:26,573 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1834528552] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 20:02:26,574 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-21 20:02:26,574 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8] total 15 [2021-10-21 20:02:26,574 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [81503242] [2021-10-21 20:02:26,574 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-10-21 20:02:26,575 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 20:02:26,575 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-10-21 20:02:26,575 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=151, Unknown=0, NotChecked=0, Total=210 [2021-10-21 20:02:26,576 INFO L87 Difference]: Start difference. First operand 1001 states and 1148 transitions. cyclomatic complexity: 154 Second operand has 15 states, 15 states have (on average 5.666666666666667) internal successors, (85), 15 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:02:28,911 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 20:02:28,911 INFO L93 Difference]: Finished difference Result 755 states and 807 transitions. [2021-10-21 20:02:28,912 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-10-21 20:02:28,912 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 755 states and 807 transitions. [2021-10-21 20:02:28,915 INFO L131 ngComponentsAnalysis]: Automaton has 7 accepting balls. 112 [2021-10-21 20:02:28,920 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 755 states to 744 states and 791 transitions. [2021-10-21 20:02:28,921 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 744 [2021-10-21 20:02:28,921 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 744 [2021-10-21 20:02:28,922 INFO L73 IsDeterministic]: Start isDeterministic. Operand 744 states and 791 transitions. [2021-10-21 20:02:28,923 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-21 20:02:28,923 INFO L681 BuchiCegarLoop]: Abstraction has 744 states and 791 transitions. [2021-10-21 20:02:28,924 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 744 states and 791 transitions. [2021-10-21 20:02:28,931 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 744 to 311. [2021-10-21 20:02:28,932 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 311 states, 311 states have (on average 1.1028938906752412) internal successors, (343), 310 states have internal predecessors, (343), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:02:28,933 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 311 states to 311 states and 343 transitions. [2021-10-21 20:02:28,933 INFO L704 BuchiCegarLoop]: Abstraction has 311 states and 343 transitions. [2021-10-21 20:02:28,933 INFO L587 BuchiCegarLoop]: Abstraction has 311 states and 343 transitions. [2021-10-21 20:02:28,933 INFO L425 BuchiCegarLoop]: ======== Iteration 25============ [2021-10-21 20:02:28,933 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 311 states and 343 transitions. [2021-10-21 20:02:28,935 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 60 [2021-10-21 20:02:28,935 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-21 20:02:28,935 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-21 20:02:28,936 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 20:02:28,936 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 20:02:28,936 INFO L791 eck$LassoCheckResult]: Stem: 22597#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string0.base, #t~string0.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string0.base, #t~string0.offset, 1);call write~init~int(0, #t~string0.base, 1 + #t~string0.offset, 1);call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(15); 22591#L-1 havoc main_#res;havoc main_#t~nondet3, main_#t~ret4, main_~a~0, main_~b~0, main_~r~1;havoc main_~a~0;havoc main_~b~0;havoc main_~r~1;main_~b~0 := main_#t~nondet3;havoc main_#t~nondet3;main_~a~0 := 234770789;mp_add_#in~a, mp_add_#in~b := main_~a~0, main_~b~0;havoc mp_add_#res;havoc mp_add_~a, mp_add_~b, mp_add_~a0~0, mp_add_~a1~0, mp_add_~a2~0, mp_add_~a3~0, mp_add_~b0~0, mp_add_~b1~0, mp_add_~b2~0, mp_add_~b3~0, mp_add_~r0~0, mp_add_~r1~0, mp_add_~r2~0, mp_add_~r3~0, mp_add_~carry~0, mp_add_~partial_sum~0, mp_add_~r~0, mp_add_~i~0, mp_add_~na~0, mp_add_~nb~0;mp_add_~a := mp_add_#in~a;mp_add_~b := mp_add_#in~b;havoc mp_add_~a0~0;havoc mp_add_~a1~0;havoc mp_add_~a2~0;havoc mp_add_~a3~0;havoc mp_add_~b0~0;havoc mp_add_~b1~0;havoc mp_add_~b2~0;havoc mp_add_~b3~0;havoc mp_add_~r0~0;havoc mp_add_~r1~0;havoc mp_add_~r2~0;havoc mp_add_~r3~0;havoc mp_add_~carry~0;havoc mp_add_~partial_sum~0;havoc mp_add_~r~0;havoc mp_add_~i~0;havoc mp_add_~na~0;havoc mp_add_~nb~0;mp_add_~a0~0 := mp_add_~a;mp_add_~a1~0 := mp_add_~a / 256;mp_add_~a2~0 := mp_add_~a / 65536;mp_add_~a3~0 := mp_add_~a / 16777216;mp_add_~b0~0 := mp_add_~b;mp_add_~b1~0 := mp_add_~b / 256;mp_add_~b2~0 := mp_add_~b / 65536;mp_add_~b3~0 := mp_add_~b / 16777216;mp_add_~na~0 := 4; 22585#L51 assume !(0 == mp_add_~a3~0 % 256); 22586#L51-1 mp_add_~nb~0 := 4; 22587#L61 assume !(0 == mp_add_~b3~0 % 256); 22588#L61-1 mp_add_~carry~0 := 0;mp_add_~i~0 := 0; 22596#L72-2 assume !!((mp_add_~i~0 % 256 < mp_add_~na~0 % 256 || mp_add_~i~0 % 256 < mp_add_~nb~0 % 256) || 0 != mp_add_~carry~0 % 65536);mp_add_~partial_sum~0 := mp_add_~carry~0;mp_add_~carry~0 := 0; 22658#L75 assume mp_add_~i~0 % 256 < mp_add_~na~0 % 256; 22657#L76 assume 0 == mp_add_~i~0 % 256;mp_add_~partial_sum~0 := mp_add_~partial_sum~0 % 65536 + mp_add_~a0~0 % 256; 22656#L76-2 assume !(1 == mp_add_~i~0 % 256); 22655#L77-1 assume !(2 == mp_add_~i~0 % 256); 22654#L78-1 assume !(3 == mp_add_~i~0 % 256); 22653#L75-1 assume mp_add_~i~0 % 256 < mp_add_~nb~0 % 256; 22652#L82 assume 0 == mp_add_~i~0 % 256;mp_add_~partial_sum~0 := mp_add_~partial_sum~0 % 65536 + mp_add_~b0~0 % 256; 22651#L82-2 assume !(1 == mp_add_~i~0 % 256); 22650#L83-1 assume !(2 == mp_add_~i~0 % 256); 22649#L84-1 assume !(3 == mp_add_~i~0 % 256); 22647#L81 assume mp_add_~partial_sum~0 % 65536 > 255;mp_add_~partial_sum~0 := ~bitwiseAnd(mp_add_~partial_sum~0 % 65536, 255);mp_add_~carry~0 := 1; 22648#L87-1 assume 0 == mp_add_~i~0 % 256;mp_add_~r0~0 := mp_add_~partial_sum~0; 22674#L91-1 assume !(1 == mp_add_~i~0 % 256); 22673#L92-1 assume !(2 == mp_add_~i~0 % 256); 22672#L93-1 assume !(3 == mp_add_~i~0 % 256); 22671#L94-1 mp_add_~i~0 := 1 + mp_add_~i~0 % 256; 22670#L72-2 assume !!((mp_add_~i~0 % 256 < mp_add_~na~0 % 256 || mp_add_~i~0 % 256 < mp_add_~nb~0 % 256) || 0 != mp_add_~carry~0 % 65536);mp_add_~partial_sum~0 := mp_add_~carry~0;mp_add_~carry~0 := 0; 22668#L75 assume !(mp_add_~i~0 % 256 < mp_add_~na~0 % 256); 22669#L75-1 assume mp_add_~i~0 % 256 < mp_add_~nb~0 % 256; 22865#L82 assume !(0 == mp_add_~i~0 % 256); 22864#L82-2 assume 1 == mp_add_~i~0 % 256;mp_add_~partial_sum~0 := mp_add_~partial_sum~0 % 65536 + mp_add_~b1~0 % 256; 22863#L83-1 assume !(2 == mp_add_~i~0 % 256); 22862#L84-1 assume !(3 == mp_add_~i~0 % 256); 22860#L81 assume mp_add_~partial_sum~0 % 65536 > 255;mp_add_~partial_sum~0 := ~bitwiseAnd(mp_add_~partial_sum~0 % 65536, 255);mp_add_~carry~0 := 1; 22859#L87-1 assume !(0 == mp_add_~i~0 % 256); 22858#L91-1 assume 1 == mp_add_~i~0 % 256;mp_add_~r1~0 := mp_add_~partial_sum~0; 22857#L92-1 assume !(2 == mp_add_~i~0 % 256); 22856#L93-1 assume !(3 == mp_add_~i~0 % 256); 22855#L94-1 mp_add_~i~0 := 1 + mp_add_~i~0 % 256; 22854#L72-2 assume !!((mp_add_~i~0 % 256 < mp_add_~na~0 % 256 || mp_add_~i~0 % 256 < mp_add_~nb~0 % 256) || 0 != mp_add_~carry~0 % 65536);mp_add_~partial_sum~0 := mp_add_~carry~0;mp_add_~carry~0 := 0; 22853#L75 assume !(mp_add_~i~0 % 256 < mp_add_~na~0 % 256); 22773#L75-1 assume mp_add_~i~0 % 256 < mp_add_~nb~0 % 256; 22851#L82 assume !(0 == mp_add_~i~0 % 256); 22850#L82-2 assume !(1 == mp_add_~i~0 % 256); 22849#L83-1 assume 2 == mp_add_~i~0 % 256;mp_add_~partial_sum~0 := mp_add_~partial_sum~0 % 65536 + mp_add_~b2~0 % 256; 22848#L84-1 assume !(3 == mp_add_~i~0 % 256); 22846#L81 assume mp_add_~partial_sum~0 % 65536 > 255;mp_add_~partial_sum~0 := ~bitwiseAnd(mp_add_~partial_sum~0 % 65536, 255);mp_add_~carry~0 := 1; 22845#L87-1 assume !(0 == mp_add_~i~0 % 256); 22844#L91-1 assume !(1 == mp_add_~i~0 % 256); 22843#L92-1 assume 2 == mp_add_~i~0 % 256;mp_add_~r2~0 := mp_add_~partial_sum~0; 22842#L93-1 assume !(3 == mp_add_~i~0 % 256); 22841#L94-1 mp_add_~i~0 := 1 + mp_add_~i~0 % 256; 22840#L72-2 assume !!((mp_add_~i~0 % 256 < mp_add_~na~0 % 256 || mp_add_~i~0 % 256 < mp_add_~nb~0 % 256) || 0 != mp_add_~carry~0 % 65536);mp_add_~partial_sum~0 := mp_add_~carry~0;mp_add_~carry~0 := 0; 22839#L75 assume !(mp_add_~i~0 % 256 < mp_add_~na~0 % 256); 22718#L75-1 assume !(mp_add_~i~0 % 256 < mp_add_~nb~0 % 256); 22834#L81 assume !(mp_add_~partial_sum~0 % 65536 > 255); 22831#L87-1 assume !(0 == mp_add_~i~0 % 256); 22830#L91-1 assume !(1 == mp_add_~i~0 % 256); 22829#L92-1 assume !(2 == mp_add_~i~0 % 256); 22828#L93-1 assume 3 == mp_add_~i~0 % 256;mp_add_~r3~0 := mp_add_~partial_sum~0; 22595#L94-1 [2021-10-21 20:02:28,937 INFO L793 eck$LassoCheckResult]: Loop: 22595#L94-1 mp_add_~i~0 := 1 + mp_add_~i~0 % 256; 22592#L72-2 assume !!((mp_add_~i~0 % 256 < mp_add_~na~0 % 256 || mp_add_~i~0 % 256 < mp_add_~nb~0 % 256) || 0 != mp_add_~carry~0 % 65536);mp_add_~partial_sum~0 := mp_add_~carry~0;mp_add_~carry~0 := 0; 22593#L75 assume !(mp_add_~i~0 % 256 < mp_add_~na~0 % 256); 22608#L75-1 assume mp_add_~i~0 % 256 < mp_add_~nb~0 % 256; 22604#L82 assume !(0 == mp_add_~i~0 % 256); 22605#L82-2 assume !(1 == mp_add_~i~0 % 256); 22607#L83-1 assume !(2 == mp_add_~i~0 % 256); 22606#L84-1 assume !(3 == mp_add_~i~0 % 256); 22601#L81 assume !(mp_add_~partial_sum~0 % 65536 > 255); 22594#L87-1 assume !(0 == mp_add_~i~0 % 256); 22582#L91-1 assume !(1 == mp_add_~i~0 % 256); 22583#L92-1 assume !(2 == mp_add_~i~0 % 256); 22584#L93-1 assume !(3 == mp_add_~i~0 % 256); 22595#L94-1 [2021-10-21 20:02:28,937 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:02:28,937 INFO L82 PathProgramCache]: Analyzing trace with hash -529922365, now seen corresponding path program 1 times [2021-10-21 20:02:28,937 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:02:28,937 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1871475913] [2021-10-21 20:02:28,938 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:02:28,938 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:02:28,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:02:29,094 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 38 proven. 3 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2021-10-21 20:02:29,094 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 20:02:29,095 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1871475913] [2021-10-21 20:02:29,095 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1871475913] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 20:02:29,095 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1955198994] [2021-10-21 20:02:29,095 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:02:29,095 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-21 20:02:29,095 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:02:29,100 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-21 20:02:29,108 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2021-10-21 20:02:29,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:02:29,375 INFO L263 TraceCheckSpWp]: Trace formula consists of 163 conjuncts, 7 conjunts are in the unsatisfiable core [2021-10-21 20:02:29,376 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 20:02:29,705 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 6 proven. 15 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2021-10-21 20:02:29,705 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1955198994] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 20:02:29,705 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-21 20:02:29,706 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 4] total 8 [2021-10-21 20:02:29,706 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [945616318] [2021-10-21 20:02:29,706 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-10-21 20:02:29,706 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:02:29,706 INFO L82 PathProgramCache]: Analyzing trace with hash -1233229496, now seen corresponding path program 1 times [2021-10-21 20:02:29,707 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:02:29,707 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1968349986] [2021-10-21 20:02:29,707 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:02:29,707 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:02:29,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:02:29,714 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 20:02:29,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:02:29,718 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 20:02:29,979 INFO L210 LassoAnalysis]: Preferences: [2021-10-21 20:02:29,979 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-21 20:02:29,979 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-21 20:02:29,980 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-21 20:02:29,980 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-10-21 20:02:29,980 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:02:29,980 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-21 20:02:29,980 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-21 20:02:29,980 INFO L133 ssoRankerPreferences]: Filename of dumped script: byte_add_1-1.i_Iteration25_Loop [2021-10-21 20:02:29,981 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-21 20:02:29,982 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-21 20:02:30,026 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:02:30,047 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:02:30,381 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-21 20:02:30,382 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-10-21 20:02:30,384 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:02:30,384 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:02:30,403 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:02:30,406 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2021-10-21 20:02:30,407 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-21 20:02:30,407 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-21 20:02:30,435 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-21 20:02:30,435 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: [] [2021-10-21 20:02:30,466 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Forceful destruction successful, exit code 0 [2021-10-21 20:02:30,466 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:02:30,467 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:02:30,467 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:02:30,474 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2021-10-21 20:02:30,475 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-21 20:02:30,475 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-21 20:02:30,542 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Forceful destruction successful, exit code 0 [2021-10-21 20:02:30,543 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:02:30,543 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:02:30,544 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:02:30,545 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2021-10-21 20:02:30,545 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-10-21 20:02:30,545 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-21 20:02:31,171 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-10-21 20:02:31,178 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Forceful destruction successful, exit code 0 [2021-10-21 20:02:31,178 INFO L210 LassoAnalysis]: Preferences: [2021-10-21 20:02:31,179 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-21 20:02:31,179 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-21 20:02:31,179 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-21 20:02:31,179 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-21 20:02:31,179 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:02:31,179 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-21 20:02:31,179 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-21 20:02:31,179 INFO L133 ssoRankerPreferences]: Filename of dumped script: byte_add_1-1.i_Iteration25_Loop [2021-10-21 20:02:31,179 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-21 20:02:31,179 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-21 20:02:31,180 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:02:31,196 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:02:31,590 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-21 20:02:31,593 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-10-21 20:02:31,594 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:02:31,594 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:02:31,595 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:02:31,596 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2021-10-21 20:02:31,597 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 20:02:31,604 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 20:02:31,604 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 20:02:31,605 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 20:02:31,605 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:02:31,605 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 20:02:31,608 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-21 20:02:31,608 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 20:02:31,617 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 20:02:31,640 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Forceful destruction successful, exit code 0 [2021-10-21 20:02:31,640 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:02:31,640 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:02:31,641 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:02:31,642 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2021-10-21 20:02:31,643 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 20:02:31,653 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 20:02:31,653 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 20:02:31,653 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 20:02:31,654 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:02:31,654 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 20:02:31,657 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-21 20:02:31,657 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 20:02:31,660 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 20:02:31,684 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Ended with exit code 0 [2021-10-21 20:02:31,684 INFO L490 LassoAnalysis]: Using template '2-nested'. [2021-10-21 20:02:31,684 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:02:31,685 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:02:31,690 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:02:31,703 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2021-10-21 20:02:31,707 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 20:02:31,714 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 20:02:31,714 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 20:02:31,715 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 20:02:31,715 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:02:31,715 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2021-10-21 20:02:31,717 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2021-10-21 20:02:31,717 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 20:02:31,727 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 20:02:31,750 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Ended with exit code 0 [2021-10-21 20:02:31,750 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:02:31,750 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:02:31,751 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:02:31,752 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process [2021-10-21 20:02:31,753 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 20:02:31,760 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 20:02:31,760 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 20:02:31,760 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 20:02:31,760 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:02:31,760 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2021-10-21 20:02:31,764 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2021-10-21 20:02:31,764 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 20:02:31,772 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 20:02:31,795 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Forceful destruction successful, exit code 0 [2021-10-21 20:02:31,795 INFO L490 LassoAnalysis]: Using template '3-nested'. [2021-10-21 20:02:31,796 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:02:31,796 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:02:31,796 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:02:31,797 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Waiting until timeout for monitored process [2021-10-21 20:02:31,799 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 20:02:31,806 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 20:02:31,806 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 20:02:31,807 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 20:02:31,807 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:02:31,807 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2021-10-21 20:02:31,809 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-10-21 20:02:31,810 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 20:02:31,813 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 20:02:31,835 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Forceful destruction successful, exit code 0 [2021-10-21 20:02:31,836 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:02:31,836 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:02:31,836 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:02:31,838 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Waiting until timeout for monitored process [2021-10-21 20:02:31,838 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 20:02:31,846 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 20:02:31,846 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 20:02:31,846 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 20:02:31,846 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:02:31,846 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2021-10-21 20:02:31,852 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-10-21 20:02:31,852 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 20:02:31,857 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 20:02:31,876 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Forceful destruction successful, exit code 0 [2021-10-21 20:02:31,876 INFO L490 LassoAnalysis]: Using template '4-nested'. [2021-10-21 20:02:31,877 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:02:31,877 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:02:31,877 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:02:31,879 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Waiting until timeout for monitored process [2021-10-21 20:02:31,883 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 20:02:31,890 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 20:02:31,890 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 20:02:31,890 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 20:02:31,890 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:02:31,890 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. [2021-10-21 20:02:31,893 INFO L401 nArgumentSynthesizer]: We have 5 Motzkin's Theorem applications. [2021-10-21 20:02:31,893 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 20:02:31,897 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 20:02:31,916 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Forceful destruction successful, exit code 0 [2021-10-21 20:02:31,916 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:02:31,916 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:02:31,917 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:02:31,918 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Waiting until timeout for monitored process [2021-10-21 20:02:31,921 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 [2021-10-21 20:02:31,929 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 20:02:31,929 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 20:02:31,929 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 20:02:31,929 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:02:31,929 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. [2021-10-21 20:02:31,935 INFO L401 nArgumentSynthesizer]: We have 5 Motzkin's Theorem applications. [2021-10-21 20:02:31,935 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 20:02:31,962 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 20:02:31,999 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Forceful destruction successful, exit code 0 [2021-10-21 20:02:32,000 INFO L490 LassoAnalysis]: Using template '2-phase'. [2021-10-21 20:02:32,000 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:02:32,000 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:02:32,003 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:02:32,009 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 20:02:32,018 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-21 20:02:32,019 INFO L338 nArgumentSynthesizer]: Template has degree 1. [2021-10-21 20:02:32,019 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 20:02:32,019 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 20:02:32,019 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:02:32,019 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2021-10-21 20:02:32,022 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2021-10-21 20:02:32,022 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 20:02:32,028 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Waiting until timeout for monitored process [2021-10-21 20:02:32,040 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 20:02:32,079 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Forceful destruction successful, exit code 0 [2021-10-21 20:02:32,079 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:02:32,079 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:02:32,080 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:02:32,082 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Waiting until timeout for monitored process [2021-10-21 20:02:32,087 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 20:02:32,096 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-21 20:02:32,097 INFO L338 nArgumentSynthesizer]: Template has degree 1. [2021-10-21 20:02:32,097 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 20:02:32,097 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 20:02:32,097 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:02:32,097 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2021-10-21 20:02:32,103 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2021-10-21 20:02:32,103 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 20:02:32,122 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 20:02:32,154 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Forceful destruction successful, exit code 0 [2021-10-21 20:02:32,154 INFO L490 LassoAnalysis]: Using template '3-phase'. [2021-10-21 20:02:32,154 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:02:32,155 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:02:32,159 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:02:32,165 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 20:02:32,175 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-21 20:02:32,175 INFO L338 nArgumentSynthesizer]: Template has degree 2. [2021-10-21 20:02:32,175 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 20:02:32,175 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 20:02:32,176 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:02:32,176 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2021-10-21 20:02:32,180 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-10-21 20:02:32,181 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 20:02:32,188 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Waiting until timeout for monitored process [2021-10-21 20:02:32,193 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 20:02:32,228 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Forceful destruction successful, exit code 0 [2021-10-21 20:02:32,229 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:02:32,229 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:02:32,230 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:02:32,241 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 20:02:32,251 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-21 20:02:32,251 INFO L338 nArgumentSynthesizer]: Template has degree 2. [2021-10-21 20:02:32,251 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 20:02:32,251 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 20:02:32,251 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:02:32,251 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2021-10-21 20:02:32,260 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-10-21 20:02:32,261 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 20:02:32,275 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Waiting until timeout for monitored process [2021-10-21 20:02:32,278 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 20:02:32,315 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Forceful destruction successful, exit code 0 [2021-10-21 20:02:32,315 INFO L490 LassoAnalysis]: Using template '4-phase'. [2021-10-21 20:02:32,316 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:02:32,316 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:02:32,317 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:02:32,318 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 20:02:32,328 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-21 20:02:32,328 INFO L338 nArgumentSynthesizer]: Template has degree 3. [2021-10-21 20:02:32,328 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 20:02:32,329 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 20:02:32,329 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:02:32,329 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. [2021-10-21 20:02:32,340 INFO L401 nArgumentSynthesizer]: We have 5 Motzkin's Theorem applications. [2021-10-21 20:02:32,340 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 20:02:32,351 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Waiting until timeout for monitored process [2021-10-21 20:02:32,358 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 20:02:32,393 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Forceful destruction successful, exit code 0 [2021-10-21 20:02:32,394 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:02:32,394 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:02:32,395 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:02:32,398 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 20:02:32,408 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-21 20:02:32,408 INFO L338 nArgumentSynthesizer]: Template has degree 3. [2021-10-21 20:02:32,408 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 20:02:32,408 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 20:02:32,408 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:02:32,408 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. [2021-10-21 20:02:32,418 INFO L401 nArgumentSynthesizer]: We have 5 Motzkin's Theorem applications. [2021-10-21 20:02:32,418 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 20:02:32,429 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Waiting until timeout for monitored process [2021-10-21 20:02:32,447 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 20:02:32,483 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Forceful destruction successful, exit code 0 [2021-10-21 20:02:32,483 INFO L490 LassoAnalysis]: Using template '2-lex'. [2021-10-21 20:02:32,484 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:02:32,484 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:02:32,485 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:02:32,488 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 20:02:32,497 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-21 20:02:32,497 INFO L338 nArgumentSynthesizer]: Template has degree 1. [2021-10-21 20:02:32,497 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 20:02:32,497 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 20:02:32,497 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:02:32,497 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2021-10-21 20:02:32,500 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-10-21 20:02:32,501 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 20:02:32,506 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Waiting until timeout for monitored process [2021-10-21 20:02:32,514 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 20:02:32,551 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Forceful destruction successful, exit code 0 [2021-10-21 20:02:32,551 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:02:32,551 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:02:32,555 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:02:32,558 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 20:02:32,568 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-21 20:02:32,569 INFO L338 nArgumentSynthesizer]: Template has degree 1. [2021-10-21 20:02:32,569 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 20:02:32,569 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 20:02:32,569 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:02:32,569 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2021-10-21 20:02:32,575 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-10-21 20:02:32,576 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 20:02:32,585 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Waiting until timeout for monitored process [2021-10-21 20:02:32,590 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 20:02:32,622 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Forceful destruction successful, exit code 0 [2021-10-21 20:02:32,623 INFO L490 LassoAnalysis]: Using template '3-lex'. [2021-10-21 20:02:32,623 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:02:32,623 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:02:32,627 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:02:32,631 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 20:02:32,640 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-21 20:02:32,640 INFO L338 nArgumentSynthesizer]: Template has degree 3. [2021-10-21 20:02:32,640 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 20:02:32,640 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 20:02:32,640 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:02:32,641 INFO L205 nArgumentSynthesizer]: 6 template conjuncts. [2021-10-21 20:02:32,645 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-21 20:02:32,645 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 20:02:32,655 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Waiting until timeout for monitored process [2021-10-21 20:02:32,662 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 20:02:32,695 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Forceful destruction successful, exit code 0 [2021-10-21 20:02:32,695 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:02:32,695 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:02:32,699 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:02:32,701 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 20:02:32,710 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-21 20:02:32,711 INFO L338 nArgumentSynthesizer]: Template has degree 3. [2021-10-21 20:02:32,711 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 20:02:32,711 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 20:02:32,711 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:02:32,711 INFO L205 nArgumentSynthesizer]: 6 template conjuncts. [2021-10-21 20:02:32,720 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-21 20:02:32,720 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 20:02:32,726 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Waiting until timeout for monitored process [2021-10-21 20:02:32,742 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 20:02:32,778 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Forceful destruction successful, exit code 0 [2021-10-21 20:02:32,779 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 20:02:32,779 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-10-21 20:02:32,779 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-10-21 20:02:32,779 INFO L87 Difference]: Start difference. First operand 311 states and 343 transitions. cyclomatic complexity: 36 Second operand has 8 states, 8 states have (on average 10.625) internal successors, (85), 8 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:02:33,317 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 20:02:33,317 INFO L93 Difference]: Finished difference Result 445 states and 473 transitions. [2021-10-21 20:02:33,317 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-21 20:02:33,317 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 445 states and 473 transitions. [2021-10-21 20:02:33,320 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 94 [2021-10-21 20:02:33,323 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 445 states to 390 states and 417 transitions. [2021-10-21 20:02:33,323 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 390 [2021-10-21 20:02:33,324 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 390 [2021-10-21 20:02:33,324 INFO L73 IsDeterministic]: Start isDeterministic. Operand 390 states and 417 transitions. [2021-10-21 20:02:33,325 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-21 20:02:33,325 INFO L681 BuchiCegarLoop]: Abstraction has 390 states and 417 transitions. [2021-10-21 20:02:33,325 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 390 states and 417 transitions. [2021-10-21 20:02:33,330 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 390 to 327. [2021-10-21 20:02:33,331 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 327 states, 327 states have (on average 1.0825688073394495) internal successors, (354), 326 states have internal predecessors, (354), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:02:33,332 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 327 states to 327 states and 354 transitions. [2021-10-21 20:02:33,332 INFO L704 BuchiCegarLoop]: Abstraction has 327 states and 354 transitions. [2021-10-21 20:02:33,332 INFO L587 BuchiCegarLoop]: Abstraction has 327 states and 354 transitions. [2021-10-21 20:02:33,332 INFO L425 BuchiCegarLoop]: ======== Iteration 26============ [2021-10-21 20:02:33,332 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 327 states and 354 transitions. [2021-10-21 20:02:33,334 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 77 [2021-10-21 20:02:33,334 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-21 20:02:33,334 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-21 20:02:33,335 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] [2021-10-21 20:02:33,335 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 20:02:33,335 INFO L791 eck$LassoCheckResult]: Stem: 23544#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string0.base, #t~string0.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string0.base, #t~string0.offset, 1);call write~init~int(0, #t~string0.base, 1 + #t~string0.offset, 1);call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(15); 23535#L-1 havoc main_#res;havoc main_#t~nondet3, main_#t~ret4, main_~a~0, main_~b~0, main_~r~1;havoc main_~a~0;havoc main_~b~0;havoc main_~r~1;main_~b~0 := main_#t~nondet3;havoc main_#t~nondet3;main_~a~0 := 234770789;mp_add_#in~a, mp_add_#in~b := main_~a~0, main_~b~0;havoc mp_add_#res;havoc mp_add_~a, mp_add_~b, mp_add_~a0~0, mp_add_~a1~0, mp_add_~a2~0, mp_add_~a3~0, mp_add_~b0~0, mp_add_~b1~0, mp_add_~b2~0, mp_add_~b3~0, mp_add_~r0~0, mp_add_~r1~0, mp_add_~r2~0, mp_add_~r3~0, mp_add_~carry~0, mp_add_~partial_sum~0, mp_add_~r~0, mp_add_~i~0, mp_add_~na~0, mp_add_~nb~0;mp_add_~a := mp_add_#in~a;mp_add_~b := mp_add_#in~b;havoc mp_add_~a0~0;havoc mp_add_~a1~0;havoc mp_add_~a2~0;havoc mp_add_~a3~0;havoc mp_add_~b0~0;havoc mp_add_~b1~0;havoc mp_add_~b2~0;havoc mp_add_~b3~0;havoc mp_add_~r0~0;havoc mp_add_~r1~0;havoc mp_add_~r2~0;havoc mp_add_~r3~0;havoc mp_add_~carry~0;havoc mp_add_~partial_sum~0;havoc mp_add_~r~0;havoc mp_add_~i~0;havoc mp_add_~na~0;havoc mp_add_~nb~0;mp_add_~a0~0 := mp_add_~a;mp_add_~a1~0 := mp_add_~a / 256;mp_add_~a2~0 := mp_add_~a / 65536;mp_add_~a3~0 := mp_add_~a / 16777216;mp_add_~b0~0 := mp_add_~b;mp_add_~b1~0 := mp_add_~b / 256;mp_add_~b2~0 := mp_add_~b / 65536;mp_add_~b3~0 := mp_add_~b / 16777216;mp_add_~na~0 := 4; 23525#L51 assume !(0 == mp_add_~a3~0 % 256); 23526#L51-1 mp_add_~nb~0 := 4; 23527#L61 assume 0 == mp_add_~b3~0 % 256;mp_add_~nb~0 := mp_add_~nb~0 % 256 - 1; 23529#L63 assume !(0 == mp_add_~b2~0 % 256); 23530#L61-1 mp_add_~carry~0 := 0;mp_add_~i~0 := 0; 23541#L72-2 assume !!((mp_add_~i~0 % 256 < mp_add_~na~0 % 256 || mp_add_~i~0 % 256 < mp_add_~nb~0 % 256) || 0 != mp_add_~carry~0 % 65536);mp_add_~partial_sum~0 := mp_add_~carry~0;mp_add_~carry~0 := 0; 23624#L75 assume mp_add_~i~0 % 256 < mp_add_~na~0 % 256; 23625#L76 assume 0 == mp_add_~i~0 % 256;mp_add_~partial_sum~0 := mp_add_~partial_sum~0 % 65536 + mp_add_~a0~0 % 256; 23620#L76-2 assume !(1 == mp_add_~i~0 % 256); 23621#L77-1 assume !(2 == mp_add_~i~0 % 256); 23616#L78-1 assume !(3 == mp_add_~i~0 % 256); 23617#L75-1 assume mp_add_~i~0 % 256 < mp_add_~nb~0 % 256; 23612#L82 assume 0 == mp_add_~i~0 % 256;mp_add_~partial_sum~0 := mp_add_~partial_sum~0 % 65536 + mp_add_~b0~0 % 256; 23613#L82-2 assume !(1 == mp_add_~i~0 % 256); 23608#L83-1 assume !(2 == mp_add_~i~0 % 256); 23609#L84-1 assume !(3 == mp_add_~i~0 % 256); 23604#L81 assume mp_add_~partial_sum~0 % 65536 > 255;mp_add_~partial_sum~0 := ~bitwiseAnd(mp_add_~partial_sum~0 % 65536, 255);mp_add_~carry~0 := 1; 23605#L87-1 assume 0 == mp_add_~i~0 % 256;mp_add_~r0~0 := mp_add_~partial_sum~0; 23851#L91-1 assume !(1 == mp_add_~i~0 % 256); 23850#L92-1 assume !(2 == mp_add_~i~0 % 256); 23849#L93-1 assume !(3 == mp_add_~i~0 % 256); 23848#L94-1 mp_add_~i~0 := 1 + mp_add_~i~0 % 256; 23847#L72-2 assume !!((mp_add_~i~0 % 256 < mp_add_~na~0 % 256 || mp_add_~i~0 % 256 < mp_add_~nb~0 % 256) || 0 != mp_add_~carry~0 % 65536);mp_add_~partial_sum~0 := mp_add_~carry~0;mp_add_~carry~0 := 0; 23846#L75 assume mp_add_~i~0 % 256 < mp_add_~na~0 % 256; 23845#L76 assume !(0 == mp_add_~i~0 % 256); 23844#L76-2 assume 1 == mp_add_~i~0 % 256;mp_add_~partial_sum~0 := mp_add_~partial_sum~0 % 65536 + mp_add_~a1~0 % 256; 23843#L77-1 assume !(2 == mp_add_~i~0 % 256); 23842#L78-1 assume !(3 == mp_add_~i~0 % 256); 23840#L75-1 assume !(mp_add_~i~0 % 256 < mp_add_~nb~0 % 256); 23839#L81 assume mp_add_~partial_sum~0 % 65536 > 255;mp_add_~partial_sum~0 := ~bitwiseAnd(mp_add_~partial_sum~0 % 65536, 255);mp_add_~carry~0 := 1; 23838#L87-1 assume !(0 == mp_add_~i~0 % 256); 23836#L91-1 assume 1 == mp_add_~i~0 % 256;mp_add_~r1~0 := mp_add_~partial_sum~0; 23835#L92-1 assume !(2 == mp_add_~i~0 % 256); 23834#L93-1 assume !(3 == mp_add_~i~0 % 256); 23832#L94-1 mp_add_~i~0 := 1 + mp_add_~i~0 % 256; 23831#L72-2 assume !!((mp_add_~i~0 % 256 < mp_add_~na~0 % 256 || mp_add_~i~0 % 256 < mp_add_~nb~0 % 256) || 0 != mp_add_~carry~0 % 65536);mp_add_~partial_sum~0 := mp_add_~carry~0;mp_add_~carry~0 := 0; 23555#L75 assume mp_add_~i~0 % 256 < mp_add_~na~0 % 256; 23556#L76 assume !(0 == mp_add_~i~0 % 256); 23560#L76-2 assume !(1 == mp_add_~i~0 % 256); 23825#L77-1 assume 2 == mp_add_~i~0 % 256;mp_add_~partial_sum~0 := mp_add_~partial_sum~0 % 65536 + mp_add_~a2~0 % 256; 23824#L78-1 assume !(3 == mp_add_~i~0 % 256); 23822#L75-1 assume !(mp_add_~i~0 % 256 < mp_add_~nb~0 % 256); 23820#L81 assume mp_add_~partial_sum~0 % 65536 > 255;mp_add_~partial_sum~0 := ~bitwiseAnd(mp_add_~partial_sum~0 % 65536, 255);mp_add_~carry~0 := 1; 23818#L87-1 assume !(0 == mp_add_~i~0 % 256); 23816#L91-1 assume !(1 == mp_add_~i~0 % 256); 23814#L92-1 assume 2 == mp_add_~i~0 % 256;mp_add_~r2~0 := mp_add_~partial_sum~0; 23812#L93-1 assume !(3 == mp_add_~i~0 % 256); 23810#L94-1 mp_add_~i~0 := 1 + mp_add_~i~0 % 256; 23808#L72-2 assume !!((mp_add_~i~0 % 256 < mp_add_~na~0 % 256 || mp_add_~i~0 % 256 < mp_add_~nb~0 % 256) || 0 != mp_add_~carry~0 % 65536);mp_add_~partial_sum~0 := mp_add_~carry~0;mp_add_~carry~0 := 0; 23806#L75 assume mp_add_~i~0 % 256 < mp_add_~na~0 % 256; 23804#L76 assume !(0 == mp_add_~i~0 % 256); 23802#L76-2 assume !(1 == mp_add_~i~0 % 256); 23800#L77-1 assume !(2 == mp_add_~i~0 % 256); 23798#L78-1 assume 3 == mp_add_~i~0 % 256;mp_add_~partial_sum~0 := mp_add_~partial_sum~0 % 65536 + mp_add_~a3~0 % 256; 23796#L75-1 assume !(mp_add_~i~0 % 256 < mp_add_~nb~0 % 256); 23794#L81 assume !(mp_add_~partial_sum~0 % 65536 > 255); 23793#L87-1 assume !(0 == mp_add_~i~0 % 256); 23792#L91-1 assume !(1 == mp_add_~i~0 % 256); 23791#L92-1 assume !(2 == mp_add_~i~0 % 256); 23790#L93-1 assume 3 == mp_add_~i~0 % 256;mp_add_~r3~0 := mp_add_~partial_sum~0; 23540#L94-1 [2021-10-21 20:02:33,335 INFO L793 eck$LassoCheckResult]: Loop: 23540#L94-1 mp_add_~i~0 := 1 + mp_add_~i~0 % 256; 23536#L72-2 assume !!((mp_add_~i~0 % 256 < mp_add_~na~0 % 256 || mp_add_~i~0 % 256 < mp_add_~nb~0 % 256) || 0 != mp_add_~carry~0 % 65536);mp_add_~partial_sum~0 := mp_add_~carry~0;mp_add_~carry~0 := 0; 23537#L75 assume mp_add_~i~0 % 256 < mp_add_~na~0 % 256; 23828#L76 assume !(0 == mp_add_~i~0 % 256); 23827#L76-2 assume !(1 == mp_add_~i~0 % 256); 23826#L77-1 assume !(2 == mp_add_~i~0 % 256); 23549#L78-1 assume !(3 == mp_add_~i~0 % 256); 23550#L75-1 assume !(mp_add_~i~0 % 256 < mp_add_~nb~0 % 256); 23559#L81 assume !(mp_add_~partial_sum~0 % 65536 > 255); 23841#L87-1 assume !(0 == mp_add_~i~0 % 256); 23532#L91-1 assume !(1 == mp_add_~i~0 % 256); 23533#L92-1 assume !(2 == mp_add_~i~0 % 256); 23534#L93-1 assume !(3 == mp_add_~i~0 % 256); 23540#L94-1 [2021-10-21 20:02:33,335 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:02:33,336 INFO L82 PathProgramCache]: Analyzing trace with hash -267040966, now seen corresponding path program 1 times [2021-10-21 20:02:33,336 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:02:33,336 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1689805809] [2021-10-21 20:02:33,336 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:02:33,336 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:02:33,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:02:33,549 INFO L134 CoverageAnalysis]: Checked inductivity of 75 backedges. 45 proven. 7 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2021-10-21 20:02:33,549 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 20:02:33,549 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1689805809] [2021-10-21 20:02:33,549 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1689805809] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 20:02:33,549 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [799000679] [2021-10-21 20:02:33,549 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:02:33,549 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-21 20:02:33,550 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:02:33,575 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-21 20:02:33,597 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Waiting until timeout for monitored process [2021-10-21 20:02:34,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:02:34,028 INFO L263 TraceCheckSpWp]: Trace formula consists of 174 conjuncts, 29 conjunts are in the unsatisfiable core [2021-10-21 20:02:34,029 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 20:02:34,543 INFO L134 CoverageAnalysis]: Checked inductivity of 75 backedges. 50 proven. 4 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2021-10-21 20:02:34,543 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [799000679] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 20:02:34,543 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-21 20:02:34,543 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 6] total 11 [2021-10-21 20:02:34,543 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [413307653] [2021-10-21 20:02:34,543 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-10-21 20:02:34,544 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:02:34,544 INFO L82 PathProgramCache]: Analyzing trace with hash 672830572, now seen corresponding path program 1 times [2021-10-21 20:02:34,544 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:02:34,544 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [256089809] [2021-10-21 20:02:34,544 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:02:34,544 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:02:34,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:02:34,550 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 20:02:34,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:02:34,554 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 20:02:34,805 INFO L210 LassoAnalysis]: Preferences: [2021-10-21 20:02:34,805 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-21 20:02:34,805 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-21 20:02:34,805 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-21 20:02:34,805 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-10-21 20:02:34,805 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:02:34,805 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-21 20:02:34,805 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-21 20:02:34,805 INFO L133 ssoRankerPreferences]: Filename of dumped script: byte_add_1-1.i_Iteration26_Loop [2021-10-21 20:02:34,805 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-21 20:02:34,805 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-21 20:02:34,806 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:02:34,821 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:02:35,168 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-21 20:02:35,168 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-10-21 20:02:35,168 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:02:35,168 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:02:35,172 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:02:35,173 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Waiting until timeout for monitored process [2021-10-21 20:02:35,174 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-21 20:02:35,174 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-21 20:02:35,190 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-21 20:02:35,190 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: [] [2021-10-21 20:02:35,208 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Ended with exit code 0 [2021-10-21 20:02:35,209 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:02:35,209 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:02:35,209 INFO L229 MonitoredProcess]: Starting monitored process 34 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:02:35,210 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Waiting until timeout for monitored process [2021-10-21 20:02:35,211 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-21 20:02:35,211 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-21 20:02:35,258 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Ended with exit code 0 [2021-10-21 20:02:35,258 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:02:35,258 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:02:35,259 INFO L229 MonitoredProcess]: Starting monitored process 35 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:02:35,260 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Waiting until timeout for monitored process [2021-10-21 20:02:35,260 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-10-21 20:02:35,260 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-21 20:02:37,071 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-10-21 20:02:37,075 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Forceful destruction successful, exit code 0 [2021-10-21 20:02:37,075 INFO L210 LassoAnalysis]: Preferences: [2021-10-21 20:02:37,075 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-21 20:02:37,075 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-21 20:02:37,075 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-21 20:02:37,075 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-21 20:02:37,075 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:02:37,075 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-21 20:02:37,075 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-21 20:02:37,075 INFO L133 ssoRankerPreferences]: Filename of dumped script: byte_add_1-1.i_Iteration26_Loop [2021-10-21 20:02:37,075 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-21 20:02:37,076 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-21 20:02:37,076 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:02:37,087 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:02:37,384 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-21 20:02:37,385 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-10-21 20:02:37,385 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:02:37,385 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:02:37,392 INFO L229 MonitoredProcess]: Starting monitored process 36 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:02:37,397 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Waiting until timeout for monitored process [2021-10-21 20:02:37,397 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 [2021-10-21 20:02:37,403 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 20:02:37,404 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 20:02:37,404 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 20:02:37,404 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:02:37,404 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 20:02:37,405 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-21 20:02:37,405 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 20:02:37,407 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 20:02:37,425 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Ended with exit code 0 [2021-10-21 20:02:37,426 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:02:37,426 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:02:37,426 INFO L229 MonitoredProcess]: Starting monitored process 37 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:02:37,427 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (37)] Waiting until timeout for monitored process [2021-10-21 20:02:37,428 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 20:02:37,434 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 20:02:37,434 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 20:02:37,435 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 20:02:37,435 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:02:37,435 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 20:02:37,437 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-21 20:02:37,437 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 20:02:37,439 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 20:02:37,458 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (37)] Forceful destruction successful, exit code 0 [2021-10-21 20:02:37,458 INFO L490 LassoAnalysis]: Using template '2-nested'. [2021-10-21 20:02:37,458 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:02:37,459 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:02:37,459 INFO L229 MonitoredProcess]: Starting monitored process 38 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:02:37,464 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (38)] Waiting until timeout for monitored process [2021-10-21 20:02:37,465 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 20:02:37,472 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 20:02:37,472 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 20:02:37,472 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 20:02:37,472 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:02:37,472 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2021-10-21 20:02:37,473 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2021-10-21 20:02:37,473 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 20:02:37,476 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 20:02:37,498 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (38)] Forceful destruction successful, exit code 0 [2021-10-21 20:02:37,498 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:02:37,498 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:02:37,499 INFO L229 MonitoredProcess]: Starting monitored process 39 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:02:37,500 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 [2021-10-21 20:02:37,502 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (39)] Waiting until timeout for monitored process [2021-10-21 20:02:37,507 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 20:02:37,507 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 20:02:37,507 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 20:02:37,508 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:02:37,508 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2021-10-21 20:02:37,510 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2021-10-21 20:02:37,510 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 20:02:37,514 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 20:02:37,533 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (39)] Forceful destruction successful, exit code 0 [2021-10-21 20:02:37,533 INFO L490 LassoAnalysis]: Using template '3-nested'. [2021-10-21 20:02:37,533 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:02:37,534 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:02:37,534 INFO L229 MonitoredProcess]: Starting monitored process 40 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:02:37,538 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (40)] Waiting until timeout for monitored process [2021-10-21 20:02:37,539 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 20:02:37,546 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 20:02:37,546 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 20:02:37,546 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 20:02:37,546 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:02:37,546 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2021-10-21 20:02:37,549 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-10-21 20:02:37,550 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 20:02:37,570 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 20:02:37,602 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (40)] Forceful destruction successful, exit code 0 [2021-10-21 20:02:37,603 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:02:37,603 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:02:37,609 INFO L229 MonitoredProcess]: Starting monitored process 41 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:02:37,613 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (41)] Waiting until timeout for monitored process [2021-10-21 20:02:37,613 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 20:02:37,621 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 20:02:37,621 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 20:02:37,621 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 20:02:37,622 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:02:37,622 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2021-10-21 20:02:37,626 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-10-21 20:02:37,627 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 20:02:37,654 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 20:02:37,692 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (41)] Forceful destruction successful, exit code 0 [2021-10-21 20:02:37,692 INFO L490 LassoAnalysis]: Using template '4-nested'. [2021-10-21 20:02:37,692 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:02:37,692 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:02:37,695 INFO L229 MonitoredProcess]: Starting monitored process 42 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:02:37,697 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 20:02:37,706 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 20:02:37,707 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 20:02:37,707 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 20:02:37,707 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:02:37,707 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. [2021-10-21 20:02:37,710 INFO L401 nArgumentSynthesizer]: We have 5 Motzkin's Theorem applications. [2021-10-21 20:02:37,710 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 20:02:37,716 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (42)] Waiting until timeout for monitored process [2021-10-21 20:02:37,722 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 20:02:37,759 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (42)] Forceful destruction successful, exit code 0 [2021-10-21 20:02:37,759 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:02:37,759 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:02:37,760 INFO L229 MonitoredProcess]: Starting monitored process 43 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:02:37,763 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 20:02:37,772 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 20:02:37,773 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 20:02:37,773 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 20:02:37,773 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:02:37,773 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. [2021-10-21 20:02:37,779 INFO L401 nArgumentSynthesizer]: We have 5 Motzkin's Theorem applications. [2021-10-21 20:02:37,786 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 20:02:37,798 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (43)] Waiting until timeout for monitored process [2021-10-21 20:02:37,806 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 20:02:37,843 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (43)] Forceful destruction successful, exit code 0 [2021-10-21 20:02:37,843 INFO L490 LassoAnalysis]: Using template '2-phase'. [2021-10-21 20:02:37,843 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:02:37,843 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:02:37,847 INFO L229 MonitoredProcess]: Starting monitored process 44 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:02:37,852 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 20:02:37,861 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-21 20:02:37,861 INFO L338 nArgumentSynthesizer]: Template has degree 1. [2021-10-21 20:02:37,861 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 20:02:37,861 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 20:02:37,861 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:02:37,861 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2021-10-21 20:02:37,864 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2021-10-21 20:02:37,864 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 20:02:37,869 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (44)] Waiting until timeout for monitored process [2021-10-21 20:02:37,878 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 20:02:37,915 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (44)] Forceful destruction successful, exit code 0 [2021-10-21 20:02:37,915 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:02:37,915 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:02:37,916 INFO L229 MonitoredProcess]: Starting monitored process 45 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:02:37,919 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 20:02:37,927 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (45)] Waiting until timeout for monitored process [2021-10-21 20:02:37,932 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-21 20:02:37,932 INFO L338 nArgumentSynthesizer]: Template has degree 1. [2021-10-21 20:02:37,932 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 20:02:37,932 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 20:02:37,932 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:02:37,932 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2021-10-21 20:02:37,936 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2021-10-21 20:02:37,936 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 20:02:37,950 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 20:02:37,991 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (45)] Forceful destruction successful, exit code 0 [2021-10-21 20:02:37,992 INFO L490 LassoAnalysis]: Using template '3-phase'. [2021-10-21 20:02:37,992 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:02:37,992 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:02:37,994 INFO L229 MonitoredProcess]: Starting monitored process 46 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:02:37,994 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (46)] Waiting until timeout for monitored process [2021-10-21 20:02:37,995 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 20:02:38,002 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-21 20:02:38,002 INFO L338 nArgumentSynthesizer]: Template has degree 2. [2021-10-21 20:02:38,002 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 20:02:38,002 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 20:02:38,002 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:02:38,002 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2021-10-21 20:02:38,005 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-10-21 20:02:38,005 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 20:02:38,038 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 20:02:38,064 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (46)] Forceful destruction successful, exit code 0 [2021-10-21 20:02:38,065 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:02:38,065 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:02:38,065 INFO L229 MonitoredProcess]: Starting monitored process 47 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:02:38,066 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (47)] Waiting until timeout for monitored process [2021-10-21 20:02:38,067 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 20:02:38,074 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-21 20:02:38,074 INFO L338 nArgumentSynthesizer]: Template has degree 2. [2021-10-21 20:02:38,075 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 20:02:38,075 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 20:02:38,075 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:02:38,075 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2021-10-21 20:02:38,079 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-10-21 20:02:38,079 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 20:02:38,089 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 20:02:38,108 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (47)] Ended with exit code 0 [2021-10-21 20:02:38,108 INFO L490 LassoAnalysis]: Using template '4-phase'. [2021-10-21 20:02:38,108 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:02:38,108 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:02:38,109 INFO L229 MonitoredProcess]: Starting monitored process 48 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:02:38,110 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (48)] Waiting until timeout for monitored process [2021-10-21 20:02:38,110 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 20:02:38,118 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-21 20:02:38,118 INFO L338 nArgumentSynthesizer]: Template has degree 3. [2021-10-21 20:02:38,118 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 20:02:38,118 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 20:02:38,118 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:02:38,118 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. [2021-10-21 20:02:38,121 INFO L401 nArgumentSynthesizer]: We have 5 Motzkin's Theorem applications. [2021-10-21 20:02:38,122 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 20:02:38,134 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 20:02:38,156 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (48)] Forceful destruction successful, exit code 0 [2021-10-21 20:02:38,156 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:02:38,156 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:02:38,164 INFO L229 MonitoredProcess]: Starting monitored process 49 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:02:38,165 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (49)] Waiting until timeout for monitored process [2021-10-21 20:02:38,165 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 20:02:38,173 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-21 20:02:38,173 INFO L338 nArgumentSynthesizer]: Template has degree 3. [2021-10-21 20:02:38,173 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 20:02:38,173 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 20:02:38,173 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:02:38,173 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. [2021-10-21 20:02:38,195 INFO L401 nArgumentSynthesizer]: We have 5 Motzkin's Theorem applications. [2021-10-21 20:02:38,195 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 20:02:38,230 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 20:02:38,263 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (49)] Forceful destruction successful, exit code 0 [2021-10-21 20:02:38,263 INFO L490 LassoAnalysis]: Using template '2-lex'. [2021-10-21 20:02:38,263 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:02:38,263 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:02:38,264 INFO L229 MonitoredProcess]: Starting monitored process 50 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:02:38,267 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 20:02:38,276 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-21 20:02:38,277 INFO L338 nArgumentSynthesizer]: Template has degree 1. [2021-10-21 20:02:38,277 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 20:02:38,277 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 20:02:38,277 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:02:38,277 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2021-10-21 20:02:38,279 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-10-21 20:02:38,280 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 20:02:38,285 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (50)] Waiting until timeout for monitored process [2021-10-21 20:02:38,293 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 20:02:38,328 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (50)] Forceful destruction successful, exit code 0 [2021-10-21 20:02:38,328 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:02:38,328 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:02:38,331 INFO L229 MonitoredProcess]: Starting monitored process 51 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:02:38,333 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 20:02:38,342 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-21 20:02:38,342 INFO L338 nArgumentSynthesizer]: Template has degree 1. [2021-10-21 20:02:38,342 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 20:02:38,342 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 20:02:38,342 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:02:38,342 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2021-10-21 20:02:38,347 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-10-21 20:02:38,347 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 20:02:38,356 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (51)] Waiting until timeout for monitored process [2021-10-21 20:02:38,359 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 20:02:38,398 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (51)] Forceful destruction successful, exit code 0 [2021-10-21 20:02:38,399 INFO L490 LassoAnalysis]: Using template '3-lex'. [2021-10-21 20:02:38,399 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:02:38,399 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:02:38,400 INFO L229 MonitoredProcess]: Starting monitored process 52 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:02:38,402 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 20:02:38,411 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-21 20:02:38,411 INFO L338 nArgumentSynthesizer]: Template has degree 3. [2021-10-21 20:02:38,411 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 20:02:38,412 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 20:02:38,412 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:02:38,412 INFO L205 nArgumentSynthesizer]: 6 template conjuncts. [2021-10-21 20:02:38,415 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-21 20:02:38,416 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 20:02:38,417 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (52)] Waiting until timeout for monitored process [2021-10-21 20:02:38,422 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 20:02:38,441 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (52)] Forceful destruction successful, exit code 0 [2021-10-21 20:02:38,441 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:02:38,442 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:02:38,442 INFO L229 MonitoredProcess]: Starting monitored process 53 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:02:38,443 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (53)] Waiting until timeout for monitored process [2021-10-21 20:02:38,443 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 20:02:38,451 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-21 20:02:38,451 INFO L338 nArgumentSynthesizer]: Template has degree 3. [2021-10-21 20:02:38,451 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 20:02:38,451 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 20:02:38,451 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:02:38,451 INFO L205 nArgumentSynthesizer]: 6 template conjuncts. [2021-10-21 20:02:38,457 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-21 20:02:38,457 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 20:02:38,482 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 20:02:38,515 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (53)] Forceful destruction successful, exit code 0 [2021-10-21 20:02:38,515 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 20:02:38,516 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-10-21 20:02:38,516 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2021-10-21 20:02:38,516 INFO L87 Difference]: Start difference. First operand 327 states and 354 transitions. cyclomatic complexity: 32 Second operand has 11 states, 11 states have (on average 7.363636363636363) internal successors, (81), 11 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:02:40,568 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 20:02:40,568 INFO L93 Difference]: Finished difference Result 587 states and 628 transitions. [2021-10-21 20:02:40,568 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-10-21 20:02:40,568 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 587 states and 628 transitions. [2021-10-21 20:02:40,571 INFO L131 ngComponentsAnalysis]: Automaton has 8 accepting balls. 124 [2021-10-21 20:02:40,575 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 587 states to 587 states and 628 transitions. [2021-10-21 20:02:40,575 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 587 [2021-10-21 20:02:40,575 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 587 [2021-10-21 20:02:40,576 INFO L73 IsDeterministic]: Start isDeterministic. Operand 587 states and 628 transitions. [2021-10-21 20:02:40,577 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-21 20:02:40,577 INFO L681 BuchiCegarLoop]: Abstraction has 587 states and 628 transitions. [2021-10-21 20:02:40,577 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 587 states and 628 transitions. [2021-10-21 20:02:40,583 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 587 to 313. [2021-10-21 20:02:40,584 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 313 states, 313 states have (on average 1.0766773162939298) internal successors, (337), 312 states have internal predecessors, (337), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:02:40,585 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 313 states to 313 states and 337 transitions. [2021-10-21 20:02:40,585 INFO L704 BuchiCegarLoop]: Abstraction has 313 states and 337 transitions. [2021-10-21 20:02:40,585 INFO L587 BuchiCegarLoop]: Abstraction has 313 states and 337 transitions. [2021-10-21 20:02:40,585 INFO L425 BuchiCegarLoop]: ======== Iteration 27============ [2021-10-21 20:02:40,586 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 313 states and 337 transitions. [2021-10-21 20:02:40,587 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 77 [2021-10-21 20:02:40,587 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-21 20:02:40,587 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-21 20:02:40,588 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] [2021-10-21 20:02:40,588 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 20:02:40,588 INFO L791 eck$LassoCheckResult]: Stem: 24692#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string0.base, #t~string0.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string0.base, #t~string0.offset, 1);call write~init~int(0, #t~string0.base, 1 + #t~string0.offset, 1);call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(15); 24686#L-1 havoc main_#res;havoc main_#t~nondet3, main_#t~ret4, main_~a~0, main_~b~0, main_~r~1;havoc main_~a~0;havoc main_~b~0;havoc main_~r~1;main_~b~0 := main_#t~nondet3;havoc main_#t~nondet3;main_~a~0 := 234770789;mp_add_#in~a, mp_add_#in~b := main_~a~0, main_~b~0;havoc mp_add_#res;havoc mp_add_~a, mp_add_~b, mp_add_~a0~0, mp_add_~a1~0, mp_add_~a2~0, mp_add_~a3~0, mp_add_~b0~0, mp_add_~b1~0, mp_add_~b2~0, mp_add_~b3~0, mp_add_~r0~0, mp_add_~r1~0, mp_add_~r2~0, mp_add_~r3~0, mp_add_~carry~0, mp_add_~partial_sum~0, mp_add_~r~0, mp_add_~i~0, mp_add_~na~0, mp_add_~nb~0;mp_add_~a := mp_add_#in~a;mp_add_~b := mp_add_#in~b;havoc mp_add_~a0~0;havoc mp_add_~a1~0;havoc mp_add_~a2~0;havoc mp_add_~a3~0;havoc mp_add_~b0~0;havoc mp_add_~b1~0;havoc mp_add_~b2~0;havoc mp_add_~b3~0;havoc mp_add_~r0~0;havoc mp_add_~r1~0;havoc mp_add_~r2~0;havoc mp_add_~r3~0;havoc mp_add_~carry~0;havoc mp_add_~partial_sum~0;havoc mp_add_~r~0;havoc mp_add_~i~0;havoc mp_add_~na~0;havoc mp_add_~nb~0;mp_add_~a0~0 := mp_add_~a;mp_add_~a1~0 := mp_add_~a / 256;mp_add_~a2~0 := mp_add_~a / 65536;mp_add_~a3~0 := mp_add_~a / 16777216;mp_add_~b0~0 := mp_add_~b;mp_add_~b1~0 := mp_add_~b / 256;mp_add_~b2~0 := mp_add_~b / 65536;mp_add_~b3~0 := mp_add_~b / 16777216;mp_add_~na~0 := 4; 24677#L51 assume !(0 == mp_add_~a3~0 % 256); 24678#L51-1 mp_add_~nb~0 := 4; 24679#L61 assume 0 == mp_add_~b3~0 % 256;mp_add_~nb~0 := mp_add_~nb~0 % 256 - 1; 24681#L63 assume 0 == mp_add_~b2~0 % 256;mp_add_~nb~0 := mp_add_~nb~0 % 256 - 1; 24683#L65 assume 0 == mp_add_~b1~0 % 256;mp_add_~nb~0 := mp_add_~nb~0 % 256 - 1; 24707#L61-1 mp_add_~carry~0 := 0;mp_add_~i~0 := 0; 24824#L72-2 assume !!((mp_add_~i~0 % 256 < mp_add_~na~0 % 256 || mp_add_~i~0 % 256 < mp_add_~nb~0 % 256) || 0 != mp_add_~carry~0 % 65536);mp_add_~partial_sum~0 := mp_add_~carry~0;mp_add_~carry~0 := 0; 24823#L75 assume mp_add_~i~0 % 256 < mp_add_~na~0 % 256; 24822#L76 assume 0 == mp_add_~i~0 % 256;mp_add_~partial_sum~0 := mp_add_~partial_sum~0 % 65536 + mp_add_~a0~0 % 256; 24821#L76-2 assume !(1 == mp_add_~i~0 % 256); 24820#L77-1 assume !(2 == mp_add_~i~0 % 256); 24819#L78-1 assume !(3 == mp_add_~i~0 % 256); 24818#L75-1 assume mp_add_~i~0 % 256 < mp_add_~nb~0 % 256; 24817#L82 assume 0 == mp_add_~i~0 % 256;mp_add_~partial_sum~0 := mp_add_~partial_sum~0 % 65536 + mp_add_~b0~0 % 256; 24816#L82-2 assume !(1 == mp_add_~i~0 % 256); 24815#L83-1 assume !(2 == mp_add_~i~0 % 256); 24814#L84-1 assume !(3 == mp_add_~i~0 % 256); 24813#L81 assume !(mp_add_~partial_sum~0 % 65536 > 255); 24812#L87-1 assume 0 == mp_add_~i~0 % 256;mp_add_~r0~0 := mp_add_~partial_sum~0; 24811#L91-1 assume !(1 == mp_add_~i~0 % 256); 24810#L92-1 assume !(2 == mp_add_~i~0 % 256); 24809#L93-1 assume !(3 == mp_add_~i~0 % 256); 24808#L94-1 mp_add_~i~0 := 1 + mp_add_~i~0 % 256; 24807#L72-2 assume !!((mp_add_~i~0 % 256 < mp_add_~na~0 % 256 || mp_add_~i~0 % 256 < mp_add_~nb~0 % 256) || 0 != mp_add_~carry~0 % 65536);mp_add_~partial_sum~0 := mp_add_~carry~0;mp_add_~carry~0 := 0; 24806#L75 assume mp_add_~i~0 % 256 < mp_add_~na~0 % 256; 24805#L76 assume !(0 == mp_add_~i~0 % 256); 24804#L76-2 assume 1 == mp_add_~i~0 % 256;mp_add_~partial_sum~0 := mp_add_~partial_sum~0 % 65536 + mp_add_~a1~0 % 256; 24803#L77-1 assume !(2 == mp_add_~i~0 % 256); 24802#L78-1 assume !(3 == mp_add_~i~0 % 256); 24801#L75-1 assume !(mp_add_~i~0 % 256 < mp_add_~nb~0 % 256); 24800#L81 assume !(mp_add_~partial_sum~0 % 65536 > 255); 24799#L87-1 assume !(0 == mp_add_~i~0 % 256); 24798#L91-1 assume 1 == mp_add_~i~0 % 256;mp_add_~r1~0 := mp_add_~partial_sum~0; 24797#L92-1 assume !(2 == mp_add_~i~0 % 256); 24796#L93-1 assume !(3 == mp_add_~i~0 % 256); 24795#L94-1 mp_add_~i~0 := 1 + mp_add_~i~0 % 256; 24794#L72-2 assume !!((mp_add_~i~0 % 256 < mp_add_~na~0 % 256 || mp_add_~i~0 % 256 < mp_add_~nb~0 % 256) || 0 != mp_add_~carry~0 % 65536);mp_add_~partial_sum~0 := mp_add_~carry~0;mp_add_~carry~0 := 0; 24793#L75 assume mp_add_~i~0 % 256 < mp_add_~na~0 % 256; 24792#L76 assume !(0 == mp_add_~i~0 % 256); 24791#L76-2 assume !(1 == mp_add_~i~0 % 256); 24789#L77-1 assume 2 == mp_add_~i~0 % 256;mp_add_~partial_sum~0 := mp_add_~partial_sum~0 % 65536 + mp_add_~a2~0 % 256; 24790#L78-1 assume !(3 == mp_add_~i~0 % 256); 24839#L75-1 assume !(mp_add_~i~0 % 256 < mp_add_~nb~0 % 256); 24838#L81 assume !(mp_add_~partial_sum~0 % 65536 > 255); 24837#L87-1 assume !(0 == mp_add_~i~0 % 256); 24836#L91-1 assume !(1 == mp_add_~i~0 % 256); 24835#L92-1 assume 2 == mp_add_~i~0 % 256;mp_add_~r2~0 := mp_add_~partial_sum~0; 24834#L93-1 assume !(3 == mp_add_~i~0 % 256); 24833#L94-1 mp_add_~i~0 := 1 + mp_add_~i~0 % 256; 24832#L72-2 assume !!((mp_add_~i~0 % 256 < mp_add_~na~0 % 256 || mp_add_~i~0 % 256 < mp_add_~nb~0 % 256) || 0 != mp_add_~carry~0 % 65536);mp_add_~partial_sum~0 := mp_add_~carry~0;mp_add_~carry~0 := 0; 24831#L75 assume mp_add_~i~0 % 256 < mp_add_~na~0 % 256; 24830#L76 assume !(0 == mp_add_~i~0 % 256); 24829#L76-2 assume !(1 == mp_add_~i~0 % 256); 24828#L77-1 assume !(2 == mp_add_~i~0 % 256); 24825#L78-1 assume 3 == mp_add_~i~0 % 256;mp_add_~partial_sum~0 := mp_add_~partial_sum~0 % 65536 + mp_add_~a3~0 % 256; 24826#L75-1 assume !(mp_add_~i~0 % 256 < mp_add_~nb~0 % 256); 24854#L81 assume !(mp_add_~partial_sum~0 % 65536 > 255); 24852#L87-1 assume !(0 == mp_add_~i~0 % 256); 24850#L91-1 assume !(1 == mp_add_~i~0 % 256); 24848#L92-1 assume !(2 == mp_add_~i~0 % 256); 24846#L93-1 assume 3 == mp_add_~i~0 % 256;mp_add_~r3~0 := mp_add_~partial_sum~0; 24845#L94-1 [2021-10-21 20:02:40,589 INFO L793 eck$LassoCheckResult]: Loop: 24845#L94-1 mp_add_~i~0 := 1 + mp_add_~i~0 % 256; 24844#L72-2 assume !!((mp_add_~i~0 % 256 < mp_add_~na~0 % 256 || mp_add_~i~0 % 256 < mp_add_~nb~0 % 256) || 0 != mp_add_~carry~0 % 65536);mp_add_~partial_sum~0 := mp_add_~carry~0;mp_add_~carry~0 := 0; 24843#L75 assume mp_add_~i~0 % 256 < mp_add_~na~0 % 256; 24842#L76 assume !(0 == mp_add_~i~0 % 256); 24841#L76-2 assume !(1 == mp_add_~i~0 % 256); 24840#L77-1 assume !(2 == mp_add_~i~0 % 256); 24827#L78-1 assume !(3 == mp_add_~i~0 % 256); 24704#L75-1 assume !(mp_add_~i~0 % 256 < mp_add_~nb~0 % 256); 24705#L81 assume !(mp_add_~partial_sum~0 % 65536 > 255); 24853#L87-1 assume !(0 == mp_add_~i~0 % 256); 24851#L91-1 assume !(1 == mp_add_~i~0 % 256); 24849#L92-1 assume !(2 == mp_add_~i~0 % 256); 24847#L93-1 assume !(3 == mp_add_~i~0 % 256); 24845#L94-1 [2021-10-21 20:02:40,589 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:02:40,589 INFO L82 PathProgramCache]: Analyzing trace with hash 1728940926, now seen corresponding path program 1 times [2021-10-21 20:02:40,589 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:02:40,589 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [697037026] [2021-10-21 20:02:40,589 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:02:40,590 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:02:40,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:02:40,615 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 20:02:40,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:02:40,648 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 20:02:40,649 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:02:40,649 INFO L82 PathProgramCache]: Analyzing trace with hash 672830572, now seen corresponding path program 2 times [2021-10-21 20:02:40,649 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:02:40,649 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [373170643] [2021-10-21 20:02:40,649 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:02:40,650 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:02:40,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:02:40,655 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 20:02:40,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:02:40,659 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 20:02:40,680 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:02:40,680 INFO L82 PathProgramCache]: Analyzing trace with hash 334650383, now seen corresponding path program 2 times [2021-10-21 20:02:40,680 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:02:40,680 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [297492657] [2021-10-21 20:02:40,681 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:02:40,681 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:02:40,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:02:40,953 INFO L134 CoverageAnalysis]: Checked inductivity of 126 backedges. 40 proven. 86 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 20:02:40,953 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 20:02:40,953 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [297492657] [2021-10-21 20:02:40,953 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [297492657] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 20:02:40,953 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1573980835] [2021-10-21 20:02:40,953 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-21 20:02:40,953 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-21 20:02:40,954 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:02:40,955 INFO L229 MonitoredProcess]: Starting monitored process 54 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-21 20:02:40,957 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (54)] Waiting until timeout for monitored process [2021-10-21 20:02:41,220 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2021-10-21 20:02:41,220 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-21 20:02:41,221 INFO L263 TraceCheckSpWp]: Trace formula consists of 90 conjuncts, 7 conjunts are in the unsatisfiable core [2021-10-21 20:02:41,222 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 20:02:42,156 INFO L134 CoverageAnalysis]: Checked inductivity of 126 backedges. 24 proven. 16 refuted. 0 times theorem prover too weak. 86 trivial. 0 not checked. [2021-10-21 20:02:42,156 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1573980835] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 20:02:42,156 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-21 20:02:42,157 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 7] total 13 [2021-10-21 20:02:42,157 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1088069068] [2021-10-21 20:02:42,429 INFO L210 LassoAnalysis]: Preferences: [2021-10-21 20:02:42,429 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-21 20:02:42,429 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-21 20:02:42,429 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-21 20:02:42,429 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-10-21 20:02:42,429 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:02:42,429 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-21 20:02:42,429 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-21 20:02:42,429 INFO L133 ssoRankerPreferences]: Filename of dumped script: byte_add_1-1.i_Iteration27_Loop [2021-10-21 20:02:42,429 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-21 20:02:42,429 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-21 20:02:42,430 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:02:42,470 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:02:42,874 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-21 20:02:42,875 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-10-21 20:02:42,875 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:02:42,875 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:02:42,876 INFO L229 MonitoredProcess]: Starting monitored process 55 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:02:42,876 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (55)] Waiting until timeout for monitored process [2021-10-21 20:02:42,877 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-21 20:02:42,878 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-21 20:02:42,924 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (55)] Ended with exit code 0 [2021-10-21 20:02:42,928 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:02:42,928 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:02:42,934 INFO L229 MonitoredProcess]: Starting monitored process 56 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:02:42,939 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (56)] Waiting until timeout for monitored process [2021-10-21 20:02:42,941 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-10-21 20:02:42,941 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-21 20:02:43,675 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-10-21 20:02:43,678 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (56)] Forceful destruction successful, exit code 0 [2021-10-21 20:02:43,679 INFO L210 LassoAnalysis]: Preferences: [2021-10-21 20:02:43,679 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-21 20:02:43,679 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-21 20:02:43,679 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-21 20:02:43,679 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-21 20:02:43,679 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:02:43,679 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-21 20:02:43,679 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-21 20:02:43,679 INFO L133 ssoRankerPreferences]: Filename of dumped script: byte_add_1-1.i_Iteration27_Loop [2021-10-21 20:02:43,679 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-21 20:02:43,679 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-21 20:02:43,680 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:02:43,708 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:02:43,979 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-21 20:02:43,979 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-10-21 20:02:43,979 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:02:43,979 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:02:43,980 INFO L229 MonitoredProcess]: Starting monitored process 57 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:02:43,980 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (57)] Waiting until timeout for monitored process [2021-10-21 20:02:43,981 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 20:02:43,988 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 20:02:43,988 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 20:02:43,988 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 20:02:43,988 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:02:43,988 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 20:02:43,990 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-21 20:02:43,990 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 20:02:43,993 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 20:02:44,011 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (57)] Forceful destruction successful, exit code 0 [2021-10-21 20:02:44,012 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:02:44,012 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:02:44,012 INFO L229 MonitoredProcess]: Starting monitored process 58 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:02:44,014 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (58)] Waiting until timeout for monitored process [2021-10-21 20:02:44,014 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 20:02:44,021 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 20:02:44,021 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 20:02:44,021 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 20:02:44,021 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:02:44,022 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 20:02:44,022 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-21 20:02:44,023 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 20:02:44,024 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 20:02:44,043 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (58)] Forceful destruction successful, exit code 0 [2021-10-21 20:02:44,043 INFO L490 LassoAnalysis]: Using template '2-nested'. [2021-10-21 20:02:44,043 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:02:44,043 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:02:44,044 INFO L229 MonitoredProcess]: Starting monitored process 59 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:02:44,044 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (59)] Waiting until timeout for monitored process [2021-10-21 20:02:44,045 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 20:02:44,052 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 20:02:44,052 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 20:02:44,052 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 20:02:44,052 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:02:44,052 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2021-10-21 20:02:44,055 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2021-10-21 20:02:44,055 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 20:02:44,059 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 20:02:44,078 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (59)] Ended with exit code 0 [2021-10-21 20:02:44,078 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:02:44,078 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:02:44,079 INFO L229 MonitoredProcess]: Starting monitored process 60 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:02:44,079 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (60)] Waiting until timeout for monitored process [2021-10-21 20:02:44,080 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 [2021-10-21 20:02:44,087 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 20:02:44,087 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 20:02:44,087 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 20:02:44,087 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:02:44,087 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2021-10-21 20:02:44,089 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2021-10-21 20:02:44,089 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 20:02:44,091 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 20:02:44,110 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (60)] Forceful destruction successful, exit code 0 [2021-10-21 20:02:44,110 INFO L490 LassoAnalysis]: Using template '3-nested'. [2021-10-21 20:02:44,111 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:02:44,111 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:02:44,111 INFO L229 MonitoredProcess]: Starting monitored process 61 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:02:44,112 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (61)] Waiting until timeout for monitored process [2021-10-21 20:02:44,112 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 [2021-10-21 20:02:44,120 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 20:02:44,121 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 20:02:44,121 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 20:02:44,121 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:02:44,121 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2021-10-21 20:02:44,124 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-10-21 20:02:44,124 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 20:02:44,129 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 20:02:44,148 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (61)] Forceful destruction successful, exit code 0 [2021-10-21 20:02:44,148 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:02:44,148 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:02:44,157 INFO L229 MonitoredProcess]: Starting monitored process 62 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:02:44,158 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (62)] Waiting until timeout for monitored process [2021-10-21 20:02:44,158 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 20:02:44,165 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 20:02:44,166 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 20:02:44,166 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 20:02:44,166 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:02:44,166 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2021-10-21 20:02:44,168 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-10-21 20:02:44,168 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 20:02:44,171 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 20:02:44,189 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (62)] Forceful destruction successful, exit code 0 [2021-10-21 20:02:44,190 INFO L490 LassoAnalysis]: Using template '4-nested'. [2021-10-21 20:02:44,190 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:02:44,190 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:02:44,191 INFO L229 MonitoredProcess]: Starting monitored process 63 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:02:44,192 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (63)] Waiting until timeout for monitored process [2021-10-21 20:02:44,192 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 20:02:44,199 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 20:02:44,200 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 20:02:44,200 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 20:02:44,200 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:02:44,200 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. [2021-10-21 20:02:44,204 INFO L401 nArgumentSynthesizer]: We have 5 Motzkin's Theorem applications. [2021-10-21 20:02:44,204 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 20:02:44,210 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 20:02:44,229 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (63)] Ended with exit code 0 [2021-10-21 20:02:44,229 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:02:44,229 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:02:44,231 INFO L229 MonitoredProcess]: Starting monitored process 64 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:02:44,231 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (64)] Waiting until timeout for monitored process [2021-10-21 20:02:44,232 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 20:02:44,239 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 20:02:44,240 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 20:02:44,240 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 20:02:44,240 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:02:44,240 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. [2021-10-21 20:02:44,242 INFO L401 nArgumentSynthesizer]: We have 5 Motzkin's Theorem applications. [2021-10-21 20:02:44,242 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 20:02:44,250 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 20:02:44,269 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (64)] Ended with exit code 0 [2021-10-21 20:02:44,269 INFO L490 LassoAnalysis]: Using template '2-phase'. [2021-10-21 20:02:44,269 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:02:44,269 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:02:44,270 INFO L229 MonitoredProcess]: Starting monitored process 65 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:02:44,271 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (65)] Waiting until timeout for monitored process [2021-10-21 20:02:44,271 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 20:02:44,278 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-21 20:02:44,278 INFO L338 nArgumentSynthesizer]: Template has degree 1. [2021-10-21 20:02:44,278 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 20:02:44,278 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 20:02:44,279 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:02:44,279 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2021-10-21 20:02:44,283 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2021-10-21 20:02:44,283 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 20:02:44,306 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 20:02:44,338 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (65)] Forceful destruction successful, exit code 0 [2021-10-21 20:02:44,339 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:02:44,339 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:02:44,355 INFO L229 MonitoredProcess]: Starting monitored process 66 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:02:44,357 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 20:02:44,366 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-21 20:02:44,366 INFO L338 nArgumentSynthesizer]: Template has degree 1. [2021-10-21 20:02:44,366 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 20:02:44,366 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 20:02:44,366 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:02:44,366 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2021-10-21 20:02:44,368 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2021-10-21 20:02:44,369 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 20:02:44,374 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (66)] Waiting until timeout for monitored process [2021-10-21 20:02:44,382 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 20:02:44,414 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (66)] Forceful destruction successful, exit code 0 [2021-10-21 20:02:44,414 INFO L490 LassoAnalysis]: Using template '3-phase'. [2021-10-21 20:02:44,415 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:02:44,415 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:02:44,416 INFO L229 MonitoredProcess]: Starting monitored process 67 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:02:44,417 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 20:02:44,427 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-21 20:02:44,427 INFO L338 nArgumentSynthesizer]: Template has degree 2. [2021-10-21 20:02:44,427 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 20:02:44,427 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 20:02:44,427 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:02:44,427 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2021-10-21 20:02:44,432 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-10-21 20:02:44,433 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 20:02:44,439 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (67)] Waiting until timeout for monitored process [2021-10-21 20:02:44,450 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 20:02:44,481 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (67)] Forceful destruction successful, exit code 0 [2021-10-21 20:02:44,481 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:02:44,481 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:02:44,482 INFO L229 MonitoredProcess]: Starting monitored process 68 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:02:44,484 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 20:02:44,493 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-21 20:02:44,493 INFO L338 nArgumentSynthesizer]: Template has degree 2. [2021-10-21 20:02:44,493 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 20:02:44,494 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 20:02:44,494 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:02:44,494 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2021-10-21 20:02:44,497 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-10-21 20:02:44,497 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 20:02:44,505 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (68)] Waiting until timeout for monitored process [2021-10-21 20:02:44,522 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 20:02:44,555 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (68)] Forceful destruction successful, exit code 0 [2021-10-21 20:02:44,555 INFO L490 LassoAnalysis]: Using template '4-phase'. [2021-10-21 20:02:44,555 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:02:44,555 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:02:44,556 INFO L229 MonitoredProcess]: Starting monitored process 69 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:02:44,558 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 20:02:44,568 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-21 20:02:44,568 INFO L338 nArgumentSynthesizer]: Template has degree 3. [2021-10-21 20:02:44,568 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 20:02:44,568 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 20:02:44,568 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:02:44,568 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. [2021-10-21 20:02:44,576 INFO L401 nArgumentSynthesizer]: We have 5 Motzkin's Theorem applications. [2021-10-21 20:02:44,576 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 20:02:44,583 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (69)] Waiting until timeout for monitored process [2021-10-21 20:02:44,602 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 20:02:44,634 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (69)] Forceful destruction successful, exit code 0 [2021-10-21 20:02:44,634 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:02:44,634 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:02:44,635 INFO L229 MonitoredProcess]: Starting monitored process 70 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:02:44,637 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 20:02:44,646 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-21 20:02:44,647 INFO L338 nArgumentSynthesizer]: Template has degree 3. [2021-10-21 20:02:44,647 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 20:02:44,647 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 20:02:44,647 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:02:44,647 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. [2021-10-21 20:02:44,651 INFO L401 nArgumentSynthesizer]: We have 5 Motzkin's Theorem applications. [2021-10-21 20:02:44,651 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 20:02:44,662 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (70)] Waiting until timeout for monitored process [2021-10-21 20:02:44,674 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 20:02:44,707 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (70)] Forceful destruction successful, exit code 0 [2021-10-21 20:02:44,707 INFO L490 LassoAnalysis]: Using template '2-lex'. [2021-10-21 20:02:44,708 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:02:44,708 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:02:44,709 INFO L229 MonitoredProcess]: Starting monitored process 71 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:02:44,710 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 20:02:44,715 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (71)] Waiting until timeout for monitored process [2021-10-21 20:02:44,718 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-21 20:02:44,719 INFO L338 nArgumentSynthesizer]: Template has degree 1. [2021-10-21 20:02:44,719 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 20:02:44,719 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 20:02:44,719 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:02:44,719 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2021-10-21 20:02:44,723 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-10-21 20:02:44,723 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 20:02:44,737 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 20:02:44,757 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (71)] Ended with exit code 0 [2021-10-21 20:02:44,757 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:02:44,757 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:02:44,758 INFO L229 MonitoredProcess]: Starting monitored process 72 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:02:44,761 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (72)] Waiting until timeout for monitored process [2021-10-21 20:02:44,762 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 20:02:44,769 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-21 20:02:44,769 INFO L338 nArgumentSynthesizer]: Template has degree 1. [2021-10-21 20:02:44,769 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 20:02:44,769 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 20:02:44,769 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:02:44,769 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2021-10-21 20:02:44,771 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-10-21 20:02:44,771 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 20:02:44,775 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 20:02:44,794 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (72)] Forceful destruction successful, exit code 0 [2021-10-21 20:02:44,794 INFO L490 LassoAnalysis]: Using template '3-lex'. [2021-10-21 20:02:44,794 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:02:44,794 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:02:44,795 INFO L229 MonitoredProcess]: Starting monitored process 73 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:02:44,796 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (73)] Waiting until timeout for monitored process [2021-10-21 20:02:44,797 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 20:02:44,804 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-21 20:02:44,805 INFO L338 nArgumentSynthesizer]: Template has degree 3. [2021-10-21 20:02:44,805 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 20:02:44,805 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 20:02:44,805 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:02:44,805 INFO L205 nArgumentSynthesizer]: 6 template conjuncts. [2021-10-21 20:02:44,822 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-21 20:02:44,822 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 20:02:44,832 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 20:02:44,851 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (73)] Ended with exit code 0 [2021-10-21 20:02:44,851 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:02:44,851 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:02:44,852 INFO L229 MonitoredProcess]: Starting monitored process 74 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:02:44,853 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (74)] Waiting until timeout for monitored process [2021-10-21 20:02:44,853 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 [2021-10-21 20:02:44,860 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-21 20:02:44,860 INFO L338 nArgumentSynthesizer]: Template has degree 3. [2021-10-21 20:02:44,861 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 20:02:44,861 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 20:02:44,861 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:02:44,861 INFO L205 nArgumentSynthesizer]: 6 template conjuncts. [2021-10-21 20:02:44,863 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-21 20:02:44,863 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 20:02:44,870 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 20:02:44,889 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (74)] Ended with exit code 0 [2021-10-21 20:02:44,889 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 20:02:44,889 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-10-21 20:02:44,889 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2021-10-21 20:02:44,890 INFO L87 Difference]: Start difference. First operand 313 states and 337 transitions. cyclomatic complexity: 29 Second operand has 13 states, 13 states have (on average 8.307692307692308) internal successors, (108), 13 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:02:46,403 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 20:02:46,403 INFO L93 Difference]: Finished difference Result 282 states and 298 transitions. [2021-10-21 20:02:46,403 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-10-21 20:02:46,403 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 282 states and 298 transitions. [2021-10-21 20:02:46,405 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 13 [2021-10-21 20:02:46,406 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 282 states to 177 states and 189 transitions. [2021-10-21 20:02:46,406 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 177 [2021-10-21 20:02:46,406 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 177 [2021-10-21 20:02:46,406 INFO L73 IsDeterministic]: Start isDeterministic. Operand 177 states and 189 transitions. [2021-10-21 20:02:46,407 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-21 20:02:46,407 INFO L681 BuchiCegarLoop]: Abstraction has 177 states and 189 transitions. [2021-10-21 20:02:46,407 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 177 states and 189 transitions. [2021-10-21 20:02:46,409 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 177 to 122. [2021-10-21 20:02:46,409 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 122 states, 122 states have (on average 1.0901639344262295) internal successors, (133), 121 states have internal predecessors, (133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:02:46,410 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 122 states to 122 states and 133 transitions. [2021-10-21 20:02:46,410 INFO L704 BuchiCegarLoop]: Abstraction has 122 states and 133 transitions. [2021-10-21 20:02:46,410 INFO L587 BuchiCegarLoop]: Abstraction has 122 states and 133 transitions. [2021-10-21 20:02:46,410 INFO L425 BuchiCegarLoop]: ======== Iteration 28============ [2021-10-21 20:02:46,410 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 122 states and 133 transitions. [2021-10-21 20:02:46,411 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 13 [2021-10-21 20:02:46,411 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-21 20:02:46,411 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-21 20:02:46,412 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 20:02:46,412 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 20:02:46,412 INFO L791 eck$LassoCheckResult]: Stem: 25545#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string0.base, #t~string0.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string0.base, #t~string0.offset, 1);call write~init~int(0, #t~string0.base, 1 + #t~string0.offset, 1);call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(15); 25541#L-1 havoc main_#res;havoc main_#t~nondet3, main_#t~ret4, main_~a~0, main_~b~0, main_~r~1;havoc main_~a~0;havoc main_~b~0;havoc main_~r~1;main_~b~0 := main_#t~nondet3;havoc main_#t~nondet3;main_~a~0 := 234770789;mp_add_#in~a, mp_add_#in~b := main_~a~0, main_~b~0;havoc mp_add_#res;havoc mp_add_~a, mp_add_~b, mp_add_~a0~0, mp_add_~a1~0, mp_add_~a2~0, mp_add_~a3~0, mp_add_~b0~0, mp_add_~b1~0, mp_add_~b2~0, mp_add_~b3~0, mp_add_~r0~0, mp_add_~r1~0, mp_add_~r2~0, mp_add_~r3~0, mp_add_~carry~0, mp_add_~partial_sum~0, mp_add_~r~0, mp_add_~i~0, mp_add_~na~0, mp_add_~nb~0;mp_add_~a := mp_add_#in~a;mp_add_~b := mp_add_#in~b;havoc mp_add_~a0~0;havoc mp_add_~a1~0;havoc mp_add_~a2~0;havoc mp_add_~a3~0;havoc mp_add_~b0~0;havoc mp_add_~b1~0;havoc mp_add_~b2~0;havoc mp_add_~b3~0;havoc mp_add_~r0~0;havoc mp_add_~r1~0;havoc mp_add_~r2~0;havoc mp_add_~r3~0;havoc mp_add_~carry~0;havoc mp_add_~partial_sum~0;havoc mp_add_~r~0;havoc mp_add_~i~0;havoc mp_add_~na~0;havoc mp_add_~nb~0;mp_add_~a0~0 := mp_add_~a;mp_add_~a1~0 := mp_add_~a / 256;mp_add_~a2~0 := mp_add_~a / 65536;mp_add_~a3~0 := mp_add_~a / 16777216;mp_add_~b0~0 := mp_add_~b;mp_add_~b1~0 := mp_add_~b / 256;mp_add_~b2~0 := mp_add_~b / 65536;mp_add_~b3~0 := mp_add_~b / 16777216;mp_add_~na~0 := 4; 25533#L51 assume !(0 == mp_add_~a3~0 % 256); 25534#L51-1 mp_add_~nb~0 := 4; 25535#L61 assume 0 == mp_add_~b3~0 % 256;mp_add_~nb~0 := mp_add_~nb~0 % 256 - 1; 25536#L63 assume !(0 == mp_add_~b2~0 % 256); 25537#L61-1 mp_add_~carry~0 := 0;mp_add_~i~0 := 0; 25544#L72-2 assume !!((mp_add_~i~0 % 256 < mp_add_~na~0 % 256 || mp_add_~i~0 % 256 < mp_add_~nb~0 % 256) || 0 != mp_add_~carry~0 % 65536);mp_add_~partial_sum~0 := mp_add_~carry~0;mp_add_~carry~0 := 0; 25607#L75 assume mp_add_~i~0 % 256 < mp_add_~na~0 % 256; 25606#L76 assume 0 == mp_add_~i~0 % 256;mp_add_~partial_sum~0 := mp_add_~partial_sum~0 % 65536 + mp_add_~a0~0 % 256; 25603#L76-2 assume !(1 == mp_add_~i~0 % 256); 25600#L77-1 assume !(2 == mp_add_~i~0 % 256); 25599#L78-1 assume !(3 == mp_add_~i~0 % 256); 25598#L75-1 assume mp_add_~i~0 % 256 < mp_add_~nb~0 % 256; 25597#L82 assume 0 == mp_add_~i~0 % 256;mp_add_~partial_sum~0 := mp_add_~partial_sum~0 % 65536 + mp_add_~b0~0 % 256; 25596#L82-2 assume !(1 == mp_add_~i~0 % 256); 25595#L83-1 assume !(2 == mp_add_~i~0 % 256); 25594#L84-1 assume !(3 == mp_add_~i~0 % 256); 25593#L81 assume !(mp_add_~partial_sum~0 % 65536 > 255); 25592#L87-1 assume 0 == mp_add_~i~0 % 256;mp_add_~r0~0 := mp_add_~partial_sum~0; 25591#L91-1 assume !(1 == mp_add_~i~0 % 256); 25590#L92-1 assume !(2 == mp_add_~i~0 % 256); 25589#L93-1 assume !(3 == mp_add_~i~0 % 256); 25588#L94-1 mp_add_~i~0 := 1 + mp_add_~i~0 % 256; 25587#L72-2 assume !!((mp_add_~i~0 % 256 < mp_add_~na~0 % 256 || mp_add_~i~0 % 256 < mp_add_~nb~0 % 256) || 0 != mp_add_~carry~0 % 65536);mp_add_~partial_sum~0 := mp_add_~carry~0;mp_add_~carry~0 := 0; 25586#L75 assume mp_add_~i~0 % 256 < mp_add_~na~0 % 256; 25585#L76 assume !(0 == mp_add_~i~0 % 256); 25584#L76-2 assume 1 == mp_add_~i~0 % 256;mp_add_~partial_sum~0 := mp_add_~partial_sum~0 % 65536 + mp_add_~a1~0 % 256; 25583#L77-1 assume !(2 == mp_add_~i~0 % 256); 25582#L78-1 assume !(3 == mp_add_~i~0 % 256); 25581#L75-1 assume mp_add_~i~0 % 256 < mp_add_~nb~0 % 256; 25580#L82 assume !(0 == mp_add_~i~0 % 256); 25579#L82-2 assume 1 == mp_add_~i~0 % 256;mp_add_~partial_sum~0 := mp_add_~partial_sum~0 % 65536 + mp_add_~b1~0 % 256; 25578#L83-1 assume !(2 == mp_add_~i~0 % 256); 25577#L84-1 assume !(3 == mp_add_~i~0 % 256); 25575#L81 assume mp_add_~partial_sum~0 % 65536 > 255;mp_add_~partial_sum~0 := ~bitwiseAnd(mp_add_~partial_sum~0 % 65536, 255);mp_add_~carry~0 := 1; 25576#L87-1 assume !(0 == mp_add_~i~0 % 256); 25630#L91-1 assume 1 == mp_add_~i~0 % 256;mp_add_~r1~0 := mp_add_~partial_sum~0; 25629#L92-1 assume !(2 == mp_add_~i~0 % 256); 25628#L93-1 assume !(3 == mp_add_~i~0 % 256); 25627#L94-1 mp_add_~i~0 := 1 + mp_add_~i~0 % 256; 25626#L72-2 assume !!((mp_add_~i~0 % 256 < mp_add_~na~0 % 256 || mp_add_~i~0 % 256 < mp_add_~nb~0 % 256) || 0 != mp_add_~carry~0 % 65536);mp_add_~partial_sum~0 := mp_add_~carry~0;mp_add_~carry~0 := 0; 25625#L75 assume mp_add_~i~0 % 256 < mp_add_~na~0 % 256; 25624#L76 assume !(0 == mp_add_~i~0 % 256); 25623#L76-2 assume !(1 == mp_add_~i~0 % 256); 25622#L77-1 assume 2 == mp_add_~i~0 % 256;mp_add_~partial_sum~0 := mp_add_~partial_sum~0 % 65536 + mp_add_~a2~0 % 256; 25621#L78-1 assume !(3 == mp_add_~i~0 % 256); 25620#L75-1 assume !(mp_add_~i~0 % 256 < mp_add_~nb~0 % 256); 25618#L81 assume mp_add_~partial_sum~0 % 65536 > 255;mp_add_~partial_sum~0 := ~bitwiseAnd(mp_add_~partial_sum~0 % 65536, 255);mp_add_~carry~0 := 1; 25619#L87-1 assume !(0 == mp_add_~i~0 % 256); 25614#L91-1 assume !(1 == mp_add_~i~0 % 256); 25615#L92-1 assume 2 == mp_add_~i~0 % 256;mp_add_~r2~0 := mp_add_~partial_sum~0; 25610#L93-1 assume !(3 == mp_add_~i~0 % 256); 25611#L94-1 mp_add_~i~0 := 1 + mp_add_~i~0 % 256; 25604#L72-2 assume !!((mp_add_~i~0 % 256 < mp_add_~na~0 % 256 || mp_add_~i~0 % 256 < mp_add_~nb~0 % 256) || 0 != mp_add_~carry~0 % 65536);mp_add_~partial_sum~0 := mp_add_~carry~0;mp_add_~carry~0 := 0; 25605#L75 assume mp_add_~i~0 % 256 < mp_add_~na~0 % 256; 25557#L76 assume !(0 == mp_add_~i~0 % 256); 25546#L76-2 assume !(1 == mp_add_~i~0 % 256); 25547#L77-1 assume !(2 == mp_add_~i~0 % 256); 25548#L78-1 assume 3 == mp_add_~i~0 % 256;mp_add_~partial_sum~0 := mp_add_~partial_sum~0 % 65536 + mp_add_~a3~0 % 256; 25640#L75-1 assume !(mp_add_~i~0 % 256 < mp_add_~nb~0 % 256); 25636#L81 assume !(mp_add_~partial_sum~0 % 65536 > 255); 25637#L87-1 assume !(0 == mp_add_~i~0 % 256); 25651#L91-1 assume !(1 == mp_add_~i~0 % 256); 25650#L92-1 assume !(2 == mp_add_~i~0 % 256); 25631#L93-1 assume 3 == mp_add_~i~0 % 256;mp_add_~r3~0 := mp_add_~partial_sum~0; 25543#L94-1 [2021-10-21 20:02:46,412 INFO L793 eck$LassoCheckResult]: Loop: 25543#L94-1 mp_add_~i~0 := 1 + mp_add_~i~0 % 256; 25539#L72-2 assume !!((mp_add_~i~0 % 256 < mp_add_~na~0 % 256 || mp_add_~i~0 % 256 < mp_add_~nb~0 % 256) || 0 != mp_add_~carry~0 % 65536);mp_add_~partial_sum~0 := mp_add_~carry~0;mp_add_~carry~0 := 0; 25540#L75 assume !(mp_add_~i~0 % 256 < mp_add_~na~0 % 256); 25555#L75-1 assume mp_add_~i~0 % 256 < mp_add_~nb~0 % 256; 25552#L82 assume !(0 == mp_add_~i~0 % 256); 25553#L82-2 assume !(1 == mp_add_~i~0 % 256); 25556#L83-1 assume !(2 == mp_add_~i~0 % 256); 25554#L84-1 assume !(3 == mp_add_~i~0 % 256); 25549#L81 assume !(mp_add_~partial_sum~0 % 65536 > 255); 25542#L87-1 assume !(0 == mp_add_~i~0 % 256); 25530#L91-1 assume !(1 == mp_add_~i~0 % 256); 25531#L92-1 assume !(2 == mp_add_~i~0 % 256); 25532#L93-1 assume !(3 == mp_add_~i~0 % 256); 25543#L94-1 [2021-10-21 20:02:46,413 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:02:46,413 INFO L82 PathProgramCache]: Analyzing trace with hash 544159432, now seen corresponding path program 1 times [2021-10-21 20:02:46,413 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:02:46,413 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1077910768] [2021-10-21 20:02:46,413 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:02:46,414 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:02:46,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:02:46,686 INFO L134 CoverageAnalysis]: Checked inductivity of 79 backedges. 43 proven. 31 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-10-21 20:02:46,687 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 20:02:46,687 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1077910768] [2021-10-21 20:02:46,687 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1077910768] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 20:02:46,687 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [799094719] [2021-10-21 20:02:46,687 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:02:46,687 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-21 20:02:46,687 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:02:46,688 INFO L229 MonitoredProcess]: Starting monitored process 75 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-21 20:02:46,688 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (75)] Waiting until timeout for monitored process [2021-10-21 20:02:47,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:02:47,179 INFO L263 TraceCheckSpWp]: Trace formula consists of 179 conjuncts, 9 conjunts are in the unsatisfiable core [2021-10-21 20:02:47,180 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 20:02:48,195 INFO L134 CoverageAnalysis]: Checked inductivity of 79 backedges. 48 proven. 3 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2021-10-21 20:02:48,195 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [799094719] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 20:02:48,195 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-21 20:02:48,196 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 6] total 13 [2021-10-21 20:02:48,196 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [293988636] [2021-10-21 20:02:48,196 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-10-21 20:02:48,196 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:02:48,197 INFO L82 PathProgramCache]: Analyzing trace with hash -1233229496, now seen corresponding path program 2 times [2021-10-21 20:02:48,197 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:02:48,197 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1799542888] [2021-10-21 20:02:48,197 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:02:48,197 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:02:48,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:02:48,204 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 20:02:48,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:02:48,208 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 20:02:48,429 INFO L210 LassoAnalysis]: Preferences: [2021-10-21 20:02:48,429 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-21 20:02:48,429 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-21 20:02:48,429 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-21 20:02:48,430 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-10-21 20:02:48,430 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:02:48,430 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-21 20:02:48,430 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-21 20:02:48,430 INFO L133 ssoRankerPreferences]: Filename of dumped script: byte_add_1-1.i_Iteration28_Loop [2021-10-21 20:02:48,430 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-21 20:02:48,430 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-21 20:02:48,432 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:02:48,463 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:02:48,862 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-21 20:02:48,862 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-10-21 20:02:48,862 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:02:48,863 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:02:48,864 INFO L229 MonitoredProcess]: Starting monitored process 76 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:02:48,864 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (76)] Waiting until timeout for monitored process [2021-10-21 20:02:48,865 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-21 20:02:48,865 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-21 20:02:48,931 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (76)] Ended with exit code 0 [2021-10-21 20:02:48,931 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:02:48,931 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:02:48,932 INFO L229 MonitoredProcess]: Starting monitored process 77 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:02:48,935 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (77)] Waiting until timeout for monitored process [2021-10-21 20:02:48,935 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-10-21 20:02:48,936 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-21 20:02:50,859 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-10-21 20:02:50,863 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (77)] Forceful destruction successful, exit code 0 [2021-10-21 20:02:50,863 INFO L210 LassoAnalysis]: Preferences: [2021-10-21 20:02:50,863 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-21 20:02:50,863 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-21 20:02:50,863 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-21 20:02:50,864 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-21 20:02:50,864 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:02:50,864 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-21 20:02:50,864 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-21 20:02:50,864 INFO L133 ssoRankerPreferences]: Filename of dumped script: byte_add_1-1.i_Iteration28_Loop [2021-10-21 20:02:50,864 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-21 20:02:50,864 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-21 20:02:50,864 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:02:50,877 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:02:51,301 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-21 20:02:51,301 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-10-21 20:02:51,302 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:02:51,302 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:02:51,315 INFO L229 MonitoredProcess]: Starting monitored process 78 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:02:51,317 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 20:02:51,326 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 20:02:51,326 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 20:02:51,326 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 20:02:51,326 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:02:51,326 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 20:02:51,327 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-21 20:02:51,328 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 20:02:51,330 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (78)] Waiting until timeout for monitored process [2021-10-21 20:02:51,338 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 20:02:51,375 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (78)] Forceful destruction successful, exit code 0 [2021-10-21 20:02:51,375 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:02:51,375 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:02:51,376 INFO L229 MonitoredProcess]: Starting monitored process 79 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:02:51,377 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (79)] Waiting until timeout for monitored process [2021-10-21 20:02:51,378 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 20:02:51,385 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 20:02:51,385 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 20:02:51,385 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 20:02:51,385 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:02:51,385 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 20:02:51,387 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-21 20:02:51,387 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 20:02:51,397 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 20:02:51,418 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (79)] Ended with exit code 0 [2021-10-21 20:02:51,418 INFO L490 LassoAnalysis]: Using template '2-nested'. [2021-10-21 20:02:51,418 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:02:51,418 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:02:51,419 INFO L229 MonitoredProcess]: Starting monitored process 80 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:02:51,420 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (80)] Waiting until timeout for monitored process [2021-10-21 20:02:51,421 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 20:02:51,428 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 20:02:51,428 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 20:02:51,428 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 20:02:51,428 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:02:51,428 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2021-10-21 20:02:51,429 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2021-10-21 20:02:51,429 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 20:02:51,432 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 20:02:51,452 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (80)] Ended with exit code 0 [2021-10-21 20:02:51,452 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:02:51,452 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:02:51,453 INFO L229 MonitoredProcess]: Starting monitored process 81 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:02:51,453 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (81)] Waiting until timeout for monitored process [2021-10-21 20:02:51,454 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 20:02:51,461 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 20:02:51,461 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 20:02:51,461 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 20:02:51,461 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:02:51,461 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2021-10-21 20:02:51,464 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2021-10-21 20:02:51,464 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 20:02:51,468 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 20:02:51,487 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (81)] Forceful destruction successful, exit code 0 [2021-10-21 20:02:51,488 INFO L490 LassoAnalysis]: Using template '3-nested'. [2021-10-21 20:02:51,488 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:02:51,488 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:02:51,488 INFO L229 MonitoredProcess]: Starting monitored process 82 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:02:51,489 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (82)] Waiting until timeout for monitored process [2021-10-21 20:02:51,490 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 20:02:51,498 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 20:02:51,498 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 20:02:51,498 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 20:02:51,498 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:02:51,498 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2021-10-21 20:02:51,500 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-10-21 20:02:51,500 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 20:02:51,503 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 20:02:51,524 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (82)] Forceful destruction successful, exit code 0 [2021-10-21 20:02:51,526 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:02:51,527 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:02:51,527 INFO L229 MonitoredProcess]: Starting monitored process 83 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:02:51,528 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (83)] Waiting until timeout for monitored process [2021-10-21 20:02:51,528 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 20:02:51,536 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 20:02:51,536 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 20:02:51,536 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 20:02:51,536 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:02:51,536 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2021-10-21 20:02:51,540 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-10-21 20:02:51,540 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 20:02:51,545 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 20:02:51,566 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (83)] Ended with exit code 0 [2021-10-21 20:02:51,566 INFO L490 LassoAnalysis]: Using template '4-nested'. [2021-10-21 20:02:51,566 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:02:51,566 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:02:51,567 INFO L229 MonitoredProcess]: Starting monitored process 84 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:02:51,568 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 20:02:51,569 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (84)] Waiting until timeout for monitored process [2021-10-21 20:02:51,576 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 20:02:51,576 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 20:02:51,576 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 20:02:51,576 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:02:51,577 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. [2021-10-21 20:02:51,579 INFO L401 nArgumentSynthesizer]: We have 5 Motzkin's Theorem applications. [2021-10-21 20:02:51,579 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 20:02:51,583 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 20:02:51,603 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (84)] Ended with exit code 0 [2021-10-21 20:02:51,603 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:02:51,603 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:02:51,604 INFO L229 MonitoredProcess]: Starting monitored process 85 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:02:51,605 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (85)] Waiting until timeout for monitored process [2021-10-21 20:02:51,605 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 20:02:51,613 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 20:02:51,613 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 20:02:51,613 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 20:02:51,613 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:02:51,613 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. [2021-10-21 20:02:51,618 INFO L401 nArgumentSynthesizer]: We have 5 Motzkin's Theorem applications. [2021-10-21 20:02:51,618 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 20:02:51,624 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 20:02:51,644 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (85)] Ended with exit code 0 [2021-10-21 20:02:51,644 INFO L490 LassoAnalysis]: Using template '2-phase'. [2021-10-21 20:02:51,644 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:02:51,645 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:02:51,645 INFO L229 MonitoredProcess]: Starting monitored process 86 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:02:51,646 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (86)] Waiting until timeout for monitored process [2021-10-21 20:02:51,647 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 20:02:51,654 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-21 20:02:51,654 INFO L338 nArgumentSynthesizer]: Template has degree 1. [2021-10-21 20:02:51,654 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 20:02:51,654 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 20:02:51,654 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:02:51,655 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2021-10-21 20:02:51,656 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2021-10-21 20:02:51,656 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 20:02:51,660 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 20:02:51,679 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (86)] Ended with exit code 0 [2021-10-21 20:02:51,680 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:02:51,680 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:02:51,690 INFO L229 MonitoredProcess]: Starting monitored process 87 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:02:51,690 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (87)] Waiting until timeout for monitored process [2021-10-21 20:02:51,691 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 20:02:51,698 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-21 20:02:51,698 INFO L338 nArgumentSynthesizer]: Template has degree 1. [2021-10-21 20:02:51,698 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 20:02:51,698 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 20:02:51,698 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:02:51,698 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2021-10-21 20:02:51,701 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2021-10-21 20:02:51,701 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 20:02:51,708 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 20:02:51,727 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (87)] Forceful destruction successful, exit code 0 [2021-10-21 20:02:51,728 INFO L490 LassoAnalysis]: Using template '3-phase'. [2021-10-21 20:02:51,728 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:02:51,728 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:02:51,728 INFO L229 MonitoredProcess]: Starting monitored process 88 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:02:51,729 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (88)] Waiting until timeout for monitored process [2021-10-21 20:02:51,729 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 20:02:51,737 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-21 20:02:51,737 INFO L338 nArgumentSynthesizer]: Template has degree 2. [2021-10-21 20:02:51,737 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 20:02:51,737 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 20:02:51,737 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:02:51,737 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2021-10-21 20:02:51,739 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-10-21 20:02:51,739 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 20:02:51,757 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 20:02:51,777 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (88)] Ended with exit code 0 [2021-10-21 20:02:51,777 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:02:51,777 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:02:51,778 INFO L229 MonitoredProcess]: Starting monitored process 89 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:02:51,779 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (89)] Waiting until timeout for monitored process [2021-10-21 20:02:51,779 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 20:02:51,787 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-21 20:02:51,787 INFO L338 nArgumentSynthesizer]: Template has degree 2. [2021-10-21 20:02:51,787 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 20:02:51,787 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 20:02:51,787 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:02:51,787 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2021-10-21 20:02:51,791 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-10-21 20:02:51,791 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 20:02:51,802 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 20:02:51,821 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (89)] Ended with exit code 0 [2021-10-21 20:02:51,821 INFO L490 LassoAnalysis]: Using template '4-phase'. [2021-10-21 20:02:51,821 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:02:51,821 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:02:51,822 INFO L229 MonitoredProcess]: Starting monitored process 90 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:02:51,823 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (90)] Waiting until timeout for monitored process [2021-10-21 20:02:51,823 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 20:02:51,831 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-21 20:02:51,831 INFO L338 nArgumentSynthesizer]: Template has degree 3. [2021-10-21 20:02:51,831 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 20:02:51,831 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 20:02:51,831 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:02:51,831 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. [2021-10-21 20:02:51,834 INFO L401 nArgumentSynthesizer]: We have 5 Motzkin's Theorem applications. [2021-10-21 20:02:51,834 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 20:02:51,843 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 20:02:51,862 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (90)] Forceful destruction successful, exit code 0 [2021-10-21 20:02:51,862 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:02:51,863 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:02:51,868 INFO L229 MonitoredProcess]: Starting monitored process 91 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:02:51,870 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (91)] Waiting until timeout for monitored process [2021-10-21 20:02:51,871 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 20:02:51,878 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-21 20:02:51,878 INFO L338 nArgumentSynthesizer]: Template has degree 3. [2021-10-21 20:02:51,878 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 20:02:51,879 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 20:02:51,879 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:02:51,879 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. [2021-10-21 20:02:51,884 INFO L401 nArgumentSynthesizer]: We have 5 Motzkin's Theorem applications. [2021-10-21 20:02:51,884 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 20:02:51,900 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 20:02:51,919 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (91)] Ended with exit code 0 [2021-10-21 20:02:51,919 INFO L490 LassoAnalysis]: Using template '2-lex'. [2021-10-21 20:02:51,920 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:02:51,920 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:02:51,920 INFO L229 MonitoredProcess]: Starting monitored process 92 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:02:51,921 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (92)] Waiting until timeout for monitored process [2021-10-21 20:02:51,922 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 20:02:51,929 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-21 20:02:51,929 INFO L338 nArgumentSynthesizer]: Template has degree 1. [2021-10-21 20:02:51,929 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 20:02:51,929 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 20:02:51,929 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:02:51,929 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2021-10-21 20:02:51,931 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-10-21 20:02:51,931 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 20:02:51,935 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 20:02:51,953 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (92)] Forceful destruction successful, exit code 0 [2021-10-21 20:02:51,954 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:02:51,954 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:02:51,954 INFO L229 MonitoredProcess]: Starting monitored process 93 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:02:51,955 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (93)] Waiting until timeout for monitored process [2021-10-21 20:02:51,955 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 20:02:51,962 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-21 20:02:51,963 INFO L338 nArgumentSynthesizer]: Template has degree 1. [2021-10-21 20:02:51,963 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 20:02:51,963 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 20:02:51,963 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:02:51,963 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2021-10-21 20:02:51,966 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-10-21 20:02:51,966 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 20:02:51,973 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 20:02:51,992 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (93)] Ended with exit code 0 [2021-10-21 20:02:51,992 INFO L490 LassoAnalysis]: Using template '3-lex'. [2021-10-21 20:02:51,992 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:02:51,992 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:02:51,993 INFO L229 MonitoredProcess]: Starting monitored process 94 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:02:51,994 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (94)] Waiting until timeout for monitored process [2021-10-21 20:02:51,994 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 [2021-10-21 20:02:52,001 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-21 20:02:52,001 INFO L338 nArgumentSynthesizer]: Template has degree 3. [2021-10-21 20:02:52,001 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 20:02:52,002 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 20:02:52,002 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:02:52,002 INFO L205 nArgumentSynthesizer]: 6 template conjuncts. [2021-10-21 20:02:52,005 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-21 20:02:52,006 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 20:02:52,012 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 20:02:52,030 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (94)] Ended with exit code 0 [2021-10-21 20:02:52,031 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:02:52,031 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:02:52,031 INFO L229 MonitoredProcess]: Starting monitored process 95 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:02:52,032 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (95)] Waiting until timeout for monitored process [2021-10-21 20:02:52,032 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 20:02:52,040 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-21 20:02:52,040 INFO L338 nArgumentSynthesizer]: Template has degree 3. [2021-10-21 20:02:52,040 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 20:02:52,040 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 20:02:52,040 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:02:52,040 INFO L205 nArgumentSynthesizer]: 6 template conjuncts. [2021-10-21 20:02:52,045 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-21 20:02:52,045 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 20:02:52,055 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 20:02:52,074 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (95)] Ended with exit code 0 [2021-10-21 20:02:52,074 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 20:02:52,074 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-10-21 20:02:52,075 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2021-10-21 20:02:52,075 INFO L87 Difference]: Start difference. First operand 122 states and 133 transitions. cyclomatic complexity: 12 Second operand has 13 states, 13 states have (on average 7.461538461538462) internal successors, (97), 13 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:02:53,040 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 20:02:53,040 INFO L93 Difference]: Finished difference Result 317 states and 339 transitions. [2021-10-21 20:02:53,040 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-10-21 20:02:53,040 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 317 states and 339 transitions. [2021-10-21 20:02:53,042 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 26 [2021-10-21 20:02:53,043 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 317 states to 200 states and 216 transitions. [2021-10-21 20:02:53,043 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 200 [2021-10-21 20:02:53,044 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 200 [2021-10-21 20:02:53,044 INFO L73 IsDeterministic]: Start isDeterministic. Operand 200 states and 216 transitions. [2021-10-21 20:02:53,044 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-21 20:02:53,044 INFO L681 BuchiCegarLoop]: Abstraction has 200 states and 216 transitions. [2021-10-21 20:02:53,045 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 200 states and 216 transitions. [2021-10-21 20:02:53,047 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 200 to 122. [2021-10-21 20:02:53,047 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 122 states, 122 states have (on average 1.0819672131147542) internal successors, (132), 121 states have internal predecessors, (132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:02:53,048 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 122 states to 122 states and 132 transitions. [2021-10-21 20:02:53,048 INFO L704 BuchiCegarLoop]: Abstraction has 122 states and 132 transitions. [2021-10-21 20:02:53,048 INFO L587 BuchiCegarLoop]: Abstraction has 122 states and 132 transitions. [2021-10-21 20:02:53,048 INFO L425 BuchiCegarLoop]: ======== Iteration 29============ [2021-10-21 20:02:53,048 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 122 states and 132 transitions. [2021-10-21 20:02:53,049 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 13 [2021-10-21 20:02:53,049 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-21 20:02:53,049 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-21 20:02:53,060 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 20:02:53,060 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 20:02:53,061 INFO L791 eck$LassoCheckResult]: Stem: 26204#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string0.base, #t~string0.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string0.base, #t~string0.offset, 1);call write~init~int(0, #t~string0.base, 1 + #t~string0.offset, 1);call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(15); 26198#L-1 havoc main_#res;havoc main_#t~nondet3, main_#t~ret4, main_~a~0, main_~b~0, main_~r~1;havoc main_~a~0;havoc main_~b~0;havoc main_~r~1;main_~b~0 := main_#t~nondet3;havoc main_#t~nondet3;main_~a~0 := 234770789;mp_add_#in~a, mp_add_#in~b := main_~a~0, main_~b~0;havoc mp_add_#res;havoc mp_add_~a, mp_add_~b, mp_add_~a0~0, mp_add_~a1~0, mp_add_~a2~0, mp_add_~a3~0, mp_add_~b0~0, mp_add_~b1~0, mp_add_~b2~0, mp_add_~b3~0, mp_add_~r0~0, mp_add_~r1~0, mp_add_~r2~0, mp_add_~r3~0, mp_add_~carry~0, mp_add_~partial_sum~0, mp_add_~r~0, mp_add_~i~0, mp_add_~na~0, mp_add_~nb~0;mp_add_~a := mp_add_#in~a;mp_add_~b := mp_add_#in~b;havoc mp_add_~a0~0;havoc mp_add_~a1~0;havoc mp_add_~a2~0;havoc mp_add_~a3~0;havoc mp_add_~b0~0;havoc mp_add_~b1~0;havoc mp_add_~b2~0;havoc mp_add_~b3~0;havoc mp_add_~r0~0;havoc mp_add_~r1~0;havoc mp_add_~r2~0;havoc mp_add_~r3~0;havoc mp_add_~carry~0;havoc mp_add_~partial_sum~0;havoc mp_add_~r~0;havoc mp_add_~i~0;havoc mp_add_~na~0;havoc mp_add_~nb~0;mp_add_~a0~0 := mp_add_~a;mp_add_~a1~0 := mp_add_~a / 256;mp_add_~a2~0 := mp_add_~a / 65536;mp_add_~a3~0 := mp_add_~a / 16777216;mp_add_~b0~0 := mp_add_~b;mp_add_~b1~0 := mp_add_~b / 256;mp_add_~b2~0 := mp_add_~b / 65536;mp_add_~b3~0 := mp_add_~b / 16777216;mp_add_~na~0 := 4; 26191#L51 assume !(0 == mp_add_~a3~0 % 256); 26192#L51-1 mp_add_~nb~0 := 4; 26193#L61 assume 0 == mp_add_~b3~0 % 256;mp_add_~nb~0 := mp_add_~nb~0 % 256 - 1; 26194#L63 assume 0 == mp_add_~b2~0 % 256;mp_add_~nb~0 := mp_add_~nb~0 % 256 - 1; 26195#L65 assume 0 == mp_add_~b1~0 % 256;mp_add_~nb~0 := mp_add_~nb~0 % 256 - 1; 26201#L61-1 mp_add_~carry~0 := 0;mp_add_~i~0 := 0; 26202#L72-2 assume !!((mp_add_~i~0 % 256 < mp_add_~na~0 % 256 || mp_add_~i~0 % 256 < mp_add_~nb~0 % 256) || 0 != mp_add_~carry~0 % 65536);mp_add_~partial_sum~0 := mp_add_~carry~0;mp_add_~carry~0 := 0; 26277#L75 assume mp_add_~i~0 % 256 < mp_add_~na~0 % 256; 26276#L76 assume 0 == mp_add_~i~0 % 256;mp_add_~partial_sum~0 := mp_add_~partial_sum~0 % 65536 + mp_add_~a0~0 % 256; 26275#L76-2 assume !(1 == mp_add_~i~0 % 256); 26274#L77-1 assume !(2 == mp_add_~i~0 % 256); 26273#L78-1 assume !(3 == mp_add_~i~0 % 256); 26272#L75-1 assume mp_add_~i~0 % 256 < mp_add_~nb~0 % 256; 26271#L82 assume 0 == mp_add_~i~0 % 256;mp_add_~partial_sum~0 := mp_add_~partial_sum~0 % 65536 + mp_add_~b0~0 % 256; 26270#L82-2 assume !(1 == mp_add_~i~0 % 256); 26269#L83-1 assume !(2 == mp_add_~i~0 % 256); 26268#L84-1 assume !(3 == mp_add_~i~0 % 256); 26267#L81 assume !(mp_add_~partial_sum~0 % 65536 > 255); 26266#L87-1 assume 0 == mp_add_~i~0 % 256;mp_add_~r0~0 := mp_add_~partial_sum~0; 26265#L91-1 assume !(1 == mp_add_~i~0 % 256); 26264#L92-1 assume !(2 == mp_add_~i~0 % 256); 26263#L93-1 assume !(3 == mp_add_~i~0 % 256); 26262#L94-1 mp_add_~i~0 := 1 + mp_add_~i~0 % 256; 26261#L72-2 assume !!((mp_add_~i~0 % 256 < mp_add_~na~0 % 256 || mp_add_~i~0 % 256 < mp_add_~nb~0 % 256) || 0 != mp_add_~carry~0 % 65536);mp_add_~partial_sum~0 := mp_add_~carry~0;mp_add_~carry~0 := 0; 26260#L75 assume mp_add_~i~0 % 256 < mp_add_~na~0 % 256; 26259#L76 assume !(0 == mp_add_~i~0 % 256); 26258#L76-2 assume 1 == mp_add_~i~0 % 256;mp_add_~partial_sum~0 := mp_add_~partial_sum~0 % 65536 + mp_add_~a1~0 % 256; 26257#L77-1 assume !(2 == mp_add_~i~0 % 256); 26256#L78-1 assume !(3 == mp_add_~i~0 % 256); 26255#L75-1 assume mp_add_~i~0 % 256 < mp_add_~nb~0 % 256; 26254#L82 assume !(0 == mp_add_~i~0 % 256); 26253#L82-2 assume 1 == mp_add_~i~0 % 256;mp_add_~partial_sum~0 := mp_add_~partial_sum~0 % 65536 + mp_add_~b1~0 % 256; 26252#L83-1 assume !(2 == mp_add_~i~0 % 256); 26251#L84-1 assume !(3 == mp_add_~i~0 % 256); 26249#L81 assume mp_add_~partial_sum~0 % 65536 > 255;mp_add_~partial_sum~0 := ~bitwiseAnd(mp_add_~partial_sum~0 % 65536, 255);mp_add_~carry~0 := 1; 26250#L87-1 assume !(0 == mp_add_~i~0 % 256); 26245#L91-1 assume 1 == mp_add_~i~0 % 256;mp_add_~r1~0 := mp_add_~partial_sum~0; 26246#L92-1 assume !(2 == mp_add_~i~0 % 256); 26241#L93-1 assume !(3 == mp_add_~i~0 % 256); 26242#L94-1 mp_add_~i~0 := 1 + mp_add_~i~0 % 256; 26237#L72-2 assume !!((mp_add_~i~0 % 256 < mp_add_~na~0 % 256 || mp_add_~i~0 % 256 < mp_add_~nb~0 % 256) || 0 != mp_add_~carry~0 % 65536);mp_add_~partial_sum~0 := mp_add_~carry~0;mp_add_~carry~0 := 0; 26238#L75 assume mp_add_~i~0 % 256 < mp_add_~na~0 % 256; 26233#L76 assume !(0 == mp_add_~i~0 % 256); 26234#L76-2 assume !(1 == mp_add_~i~0 % 256); 26229#L77-1 assume 2 == mp_add_~i~0 % 256;mp_add_~partial_sum~0 := mp_add_~partial_sum~0 % 65536 + mp_add_~a2~0 % 256; 26230#L78-1 assume !(3 == mp_add_~i~0 % 256); 26225#L75-1 assume !(mp_add_~i~0 % 256 < mp_add_~nb~0 % 256); 26226#L81 assume mp_add_~partial_sum~0 % 65536 > 255;mp_add_~partial_sum~0 := ~bitwiseAnd(mp_add_~partial_sum~0 % 65536, 255);mp_add_~carry~0 := 1; 26285#L87-1 assume !(0 == mp_add_~i~0 % 256); 26309#L91-1 assume !(1 == mp_add_~i~0 % 256); 26308#L92-1 assume 2 == mp_add_~i~0 % 256;mp_add_~r2~0 := mp_add_~partial_sum~0; 26307#L93-1 assume !(3 == mp_add_~i~0 % 256); 26306#L94-1 mp_add_~i~0 := 1 + mp_add_~i~0 % 256; 26305#L72-2 assume !!((mp_add_~i~0 % 256 < mp_add_~na~0 % 256 || mp_add_~i~0 % 256 < mp_add_~nb~0 % 256) || 0 != mp_add_~carry~0 % 65536);mp_add_~partial_sum~0 := mp_add_~carry~0;mp_add_~carry~0 := 0; 26304#L75 assume mp_add_~i~0 % 256 < mp_add_~na~0 % 256; 26303#L76 assume !(0 == mp_add_~i~0 % 256); 26302#L76-2 assume !(1 == mp_add_~i~0 % 256); 26301#L77-1 assume !(2 == mp_add_~i~0 % 256); 26300#L78-1 assume 3 == mp_add_~i~0 % 256;mp_add_~partial_sum~0 := mp_add_~partial_sum~0 % 65536 + mp_add_~a3~0 % 256; 26299#L75-1 assume !(mp_add_~i~0 % 256 < mp_add_~nb~0 % 256); 26213#L81 assume !(mp_add_~partial_sum~0 % 65536 > 255); 26199#L87-1 assume !(0 == mp_add_~i~0 % 256); 26190#L91-1 assume !(1 == mp_add_~i~0 % 256); 26188#L92-1 assume !(2 == mp_add_~i~0 % 256); 26189#L93-1 assume 3 == mp_add_~i~0 % 256;mp_add_~r3~0 := mp_add_~partial_sum~0; 26200#L94-1 [2021-10-21 20:02:53,061 INFO L793 eck$LassoCheckResult]: Loop: 26200#L94-1 mp_add_~i~0 := 1 + mp_add_~i~0 % 256; 26196#L72-2 assume !!((mp_add_~i~0 % 256 < mp_add_~na~0 % 256 || mp_add_~i~0 % 256 < mp_add_~nb~0 % 256) || 0 != mp_add_~carry~0 % 65536);mp_add_~partial_sum~0 := mp_add_~carry~0;mp_add_~carry~0 := 0; 26197#L75 assume !(mp_add_~i~0 % 256 < mp_add_~na~0 % 256); 26214#L75-1 assume mp_add_~i~0 % 256 < mp_add_~nb~0 % 256; 26209#L82 assume !(0 == mp_add_~i~0 % 256); 26210#L82-2 assume !(1 == mp_add_~i~0 % 256); 26218#L83-1 assume !(2 == mp_add_~i~0 % 256); 26219#L84-1 assume !(3 == mp_add_~i~0 % 256); 26290#L81 assume !(mp_add_~partial_sum~0 % 65536 > 255); 26289#L87-1 assume !(0 == mp_add_~i~0 % 256); 26288#L91-1 assume !(1 == mp_add_~i~0 % 256); 26287#L92-1 assume !(2 == mp_add_~i~0 % 256); 26203#L93-1 assume !(3 == mp_add_~i~0 % 256); 26200#L94-1 [2021-10-21 20:02:53,061 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:02:53,061 INFO L82 PathProgramCache]: Analyzing trace with hash -820936562, now seen corresponding path program 1 times [2021-10-21 20:02:53,061 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:02:53,062 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [575808878] [2021-10-21 20:02:53,062 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:02:53,062 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:02:53,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:02:53,425 INFO L134 CoverageAnalysis]: Checked inductivity of 79 backedges. 47 proven. 11 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2021-10-21 20:02:53,425 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 20:02:53,425 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [575808878] [2021-10-21 20:02:53,426 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [575808878] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 20:02:53,426 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [525765607] [2021-10-21 20:02:53,426 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:02:53,426 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-21 20:02:53,426 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:02:53,435 INFO L229 MonitoredProcess]: Starting monitored process 96 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-21 20:02:53,493 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (96)] Waiting until timeout for monitored process [2021-10-21 20:02:53,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:02:53,957 INFO L263 TraceCheckSpWp]: Trace formula consists of 186 conjuncts, 22 conjunts are in the unsatisfiable core [2021-10-21 20:02:53,958 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 20:02:54,712 INFO L134 CoverageAnalysis]: Checked inductivity of 79 backedges. 46 proven. 11 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2021-10-21 20:02:54,712 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [525765607] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 20:02:54,712 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-21 20:02:54,712 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8] total 15 [2021-10-21 20:02:54,712 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [119608200] [2021-10-21 20:02:54,713 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-10-21 20:02:54,713 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:02:54,713 INFO L82 PathProgramCache]: Analyzing trace with hash -1233229496, now seen corresponding path program 3 times [2021-10-21 20:02:54,713 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:02:54,713 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [440636713] [2021-10-21 20:02:54,713 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:02:54,713 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:02:54,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:02:54,768 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 20:02:54,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:02:54,777 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 20:02:55,031 INFO L210 LassoAnalysis]: Preferences: [2021-10-21 20:02:55,031 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-21 20:02:55,031 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-21 20:02:55,031 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-21 20:02:55,031 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-10-21 20:02:55,031 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:02:55,032 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-21 20:02:55,032 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-21 20:02:55,032 INFO L133 ssoRankerPreferences]: Filename of dumped script: byte_add_1-1.i_Iteration29_Loop [2021-10-21 20:02:55,032 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-21 20:02:55,032 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-21 20:02:55,033 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:02:55,073 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:02:55,486 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-21 20:02:55,486 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-10-21 20:02:55,487 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:02:55,487 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:02:55,489 INFO L229 MonitoredProcess]: Starting monitored process 97 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:02:55,490 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (97)] Waiting until timeout for monitored process [2021-10-21 20:02:55,490 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-21 20:02:55,490 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-21 20:02:55,541 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (97)] Forceful destruction successful, exit code 0 [2021-10-21 20:02:55,541 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:02:55,541 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:02:55,542 INFO L229 MonitoredProcess]: Starting monitored process 98 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:02:55,542 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (98)] Waiting until timeout for monitored process [2021-10-21 20:02:55,543 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-10-21 20:02:55,543 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-21 20:02:57,051 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-10-21 20:02:57,055 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (98)] Ended with exit code 0 [2021-10-21 20:02:57,055 INFO L210 LassoAnalysis]: Preferences: [2021-10-21 20:02:57,055 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-21 20:02:57,055 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-21 20:02:57,055 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-21 20:02:57,055 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-21 20:02:57,055 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:02:57,055 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-21 20:02:57,055 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-21 20:02:57,055 INFO L133 ssoRankerPreferences]: Filename of dumped script: byte_add_1-1.i_Iteration29_Loop [2021-10-21 20:02:57,055 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-21 20:02:57,055 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-21 20:02:57,056 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:02:57,089 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:02:57,382 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-21 20:02:57,383 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-10-21 20:02:57,383 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:02:57,383 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:02:57,384 INFO L229 MonitoredProcess]: Starting monitored process 99 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:02:57,385 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (99)] Waiting until timeout for monitored process [2021-10-21 20:02:57,385 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 20:02:57,392 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 20:02:57,392 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 20:02:57,392 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 20:02:57,392 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:02:57,392 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 20:02:57,394 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-21 20:02:57,394 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 20:02:57,397 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 20:02:57,416 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (99)] Ended with exit code 0 [2021-10-21 20:02:57,416 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:02:57,416 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:02:57,417 INFO L229 MonitoredProcess]: Starting monitored process 100 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:02:57,418 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (100)] Waiting until timeout for monitored process [2021-10-21 20:02:57,418 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 20:02:57,425 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 20:02:57,425 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 20:02:57,425 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 20:02:57,425 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:02:57,426 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 20:02:57,426 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-21 20:02:57,426 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 20:02:57,428 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 20:02:57,448 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (100)] Forceful destruction successful, exit code 0 [2021-10-21 20:02:57,450 INFO L490 LassoAnalysis]: Using template '2-nested'. [2021-10-21 20:02:57,450 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:02:57,450 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:02:57,451 INFO L229 MonitoredProcess]: Starting monitored process 101 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:02:57,451 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (101)] Waiting until timeout for monitored process [2021-10-21 20:02:57,452 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 20:02:57,459 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 20:02:57,459 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 20:02:57,459 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 20:02:57,459 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:02:57,460 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2021-10-21 20:02:57,463 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2021-10-21 20:02:57,463 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 20:02:57,467 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 20:02:57,488 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (101)] Ended with exit code 0 [2021-10-21 20:02:57,488 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:02:57,488 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:02:57,489 INFO L229 MonitoredProcess]: Starting monitored process 102 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:02:57,490 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (102)] Waiting until timeout for monitored process [2021-10-21 20:02:57,490 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 20:02:57,497 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 20:02:57,498 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 20:02:57,498 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 20:02:57,498 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:02:57,498 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2021-10-21 20:02:57,499 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2021-10-21 20:02:57,499 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 20:02:57,502 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 20:02:57,521 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (102)] Ended with exit code 0 [2021-10-21 20:02:57,521 INFO L490 LassoAnalysis]: Using template '3-nested'. [2021-10-21 20:02:57,521 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:02:57,521 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:02:57,522 INFO L229 MonitoredProcess]: Starting monitored process 103 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:02:57,522 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (103)] Waiting until timeout for monitored process [2021-10-21 20:02:57,523 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 20:02:57,530 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 20:02:57,530 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 20:02:57,530 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 20:02:57,531 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:02:57,531 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2021-10-21 20:02:57,534 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-10-21 20:02:57,534 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 20:02:57,539 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 20:02:57,558 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (103)] Ended with exit code 0 [2021-10-21 20:02:57,558 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:02:57,558 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:02:57,559 INFO L229 MonitoredProcess]: Starting monitored process 104 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:02:57,560 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (104)] Waiting until timeout for monitored process [2021-10-21 20:02:57,560 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 20:02:57,567 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 20:02:57,567 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 20:02:57,567 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 20:02:57,567 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:02:57,567 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2021-10-21 20:02:57,569 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-10-21 20:02:57,569 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 20:02:57,572 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 20:02:57,591 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (104)] Forceful destruction successful, exit code 0 [2021-10-21 20:02:57,592 INFO L490 LassoAnalysis]: Using template '4-nested'. [2021-10-21 20:02:57,592 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:02:57,592 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:02:57,592 INFO L229 MonitoredProcess]: Starting monitored process 105 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:02:57,593 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (105)] Waiting until timeout for monitored process [2021-10-21 20:02:57,593 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 [2021-10-21 20:02:57,601 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 20:02:57,601 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 20:02:57,601 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 20:02:57,601 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:02:57,601 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. [2021-10-21 20:02:57,605 INFO L401 nArgumentSynthesizer]: We have 5 Motzkin's Theorem applications. [2021-10-21 20:02:57,605 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 20:02:57,611 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 20:02:57,631 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (105)] Ended with exit code 0 [2021-10-21 20:02:57,631 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:02:57,631 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:02:57,632 INFO L229 MonitoredProcess]: Starting monitored process 106 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:02:57,632 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (106)] Waiting until timeout for monitored process [2021-10-21 20:02:57,633 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 20:02:57,640 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 20:02:57,640 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 20:02:57,640 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 20:02:57,640 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:02:57,640 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. [2021-10-21 20:02:57,642 INFO L401 nArgumentSynthesizer]: We have 5 Motzkin's Theorem applications. [2021-10-21 20:02:57,642 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 20:02:57,646 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 20:02:57,665 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (106)] Ended with exit code 0 [2021-10-21 20:02:57,665 INFO L490 LassoAnalysis]: Using template '2-phase'. [2021-10-21 20:02:57,665 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:02:57,665 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:02:57,666 INFO L229 MonitoredProcess]: Starting monitored process 107 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:02:57,667 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (107)] Waiting until timeout for monitored process [2021-10-21 20:02:57,667 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 20:02:57,674 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-21 20:02:57,674 INFO L338 nArgumentSynthesizer]: Template has degree 1. [2021-10-21 20:02:57,674 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 20:02:57,675 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 20:02:57,675 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:02:57,675 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2021-10-21 20:02:57,677 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2021-10-21 20:02:57,677 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 20:02:57,684 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 20:02:57,703 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (107)] Forceful destruction successful, exit code 0 [2021-10-21 20:02:57,703 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:02:57,704 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:02:57,704 INFO L229 MonitoredProcess]: Starting monitored process 108 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:02:57,705 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (108)] Waiting until timeout for monitored process [2021-10-21 20:02:57,705 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 [2021-10-21 20:02:57,712 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-21 20:02:57,712 INFO L338 nArgumentSynthesizer]: Template has degree 1. [2021-10-21 20:02:57,712 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 20:02:57,713 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 20:02:57,713 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:02:57,713 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2021-10-21 20:02:57,714 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2021-10-21 20:02:57,714 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 20:02:57,718 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 20:02:57,737 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (108)] Ended with exit code 0 [2021-10-21 20:02:57,737 INFO L490 LassoAnalysis]: Using template '3-phase'. [2021-10-21 20:02:57,737 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:02:57,737 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:02:57,738 INFO L229 MonitoredProcess]: Starting monitored process 109 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:02:57,738 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (109)] Waiting until timeout for monitored process [2021-10-21 20:02:57,739 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 20:02:57,746 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-21 20:02:57,746 INFO L338 nArgumentSynthesizer]: Template has degree 2. [2021-10-21 20:02:57,746 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 20:02:57,747 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 20:02:57,747 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:02:57,747 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2021-10-21 20:02:57,750 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-10-21 20:02:57,750 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 20:02:57,760 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 20:02:57,779 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (109)] Ended with exit code 0 [2021-10-21 20:02:57,780 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:02:57,780 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:02:57,780 INFO L229 MonitoredProcess]: Starting monitored process 110 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:02:57,781 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (110)] Waiting until timeout for monitored process [2021-10-21 20:02:57,781 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 [2021-10-21 20:02:57,789 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-21 20:02:57,789 INFO L338 nArgumentSynthesizer]: Template has degree 2. [2021-10-21 20:02:57,789 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 20:02:57,789 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 20:02:57,789 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:02:57,789 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2021-10-21 20:02:57,792 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-10-21 20:02:57,792 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 20:02:57,800 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 20:02:57,820 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (110)] Forceful destruction successful, exit code 0 [2021-10-21 20:02:57,820 INFO L490 LassoAnalysis]: Using template '4-phase'. [2021-10-21 20:02:57,820 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:02:57,820 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:02:57,821 INFO L229 MonitoredProcess]: Starting monitored process 111 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:02:57,821 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (111)] Waiting until timeout for monitored process [2021-10-21 20:02:57,822 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 20:02:57,829 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-21 20:02:57,829 INFO L338 nArgumentSynthesizer]: Template has degree 3. [2021-10-21 20:02:57,830 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 20:02:57,830 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 20:02:57,830 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:02:57,830 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. [2021-10-21 20:02:57,836 INFO L401 nArgumentSynthesizer]: We have 5 Motzkin's Theorem applications. [2021-10-21 20:02:57,837 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 20:02:57,854 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 20:02:57,873 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (111)] Ended with exit code 0 [2021-10-21 20:02:57,873 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:02:57,873 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:02:57,874 INFO L229 MonitoredProcess]: Starting monitored process 112 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:02:57,874 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (112)] Waiting until timeout for monitored process [2021-10-21 20:02:57,875 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 20:02:57,882 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-21 20:02:57,882 INFO L338 nArgumentSynthesizer]: Template has degree 3. [2021-10-21 20:02:57,883 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 20:02:57,883 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 20:02:57,883 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:02:57,883 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. [2021-10-21 20:02:57,887 INFO L401 nArgumentSynthesizer]: We have 5 Motzkin's Theorem applications. [2021-10-21 20:02:57,887 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 20:02:57,898 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 20:02:57,917 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (112)] Forceful destruction successful, exit code 0 [2021-10-21 20:02:57,917 INFO L490 LassoAnalysis]: Using template '2-lex'. [2021-10-21 20:02:57,917 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:02:57,917 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:02:57,918 INFO L229 MonitoredProcess]: Starting monitored process 113 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:02:57,918 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (113)] Waiting until timeout for monitored process [2021-10-21 20:02:57,919 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 20:02:57,926 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-21 20:02:57,926 INFO L338 nArgumentSynthesizer]: Template has degree 1. [2021-10-21 20:02:57,926 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 20:02:57,926 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 20:02:57,926 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:02:57,926 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2021-10-21 20:02:57,930 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-10-21 20:02:57,930 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 20:02:57,990 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 20:02:58,022 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (113)] Forceful destruction successful, exit code 0 [2021-10-21 20:02:58,023 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:02:58,023 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:02:58,024 INFO L229 MonitoredProcess]: Starting monitored process 114 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:02:58,027 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 20:02:58,036 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-21 20:02:58,036 INFO L338 nArgumentSynthesizer]: Template has degree 1. [2021-10-21 20:02:58,037 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 20:02:58,037 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 20:02:58,037 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:02:58,037 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2021-10-21 20:02:58,039 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-10-21 20:02:58,039 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 20:02:58,045 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (114)] Waiting until timeout for monitored process [2021-10-21 20:02:58,058 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 20:02:58,091 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (114)] Forceful destruction successful, exit code 0 [2021-10-21 20:02:58,091 INFO L490 LassoAnalysis]: Using template '3-lex'. [2021-10-21 20:02:58,091 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:02:58,091 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:02:58,092 INFO L229 MonitoredProcess]: Starting monitored process 115 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:02:58,095 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 [2021-10-21 20:02:58,105 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-21 20:02:58,105 INFO L338 nArgumentSynthesizer]: Template has degree 3. [2021-10-21 20:02:58,105 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 20:02:58,105 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 20:02:58,105 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:02:58,105 INFO L205 nArgumentSynthesizer]: 6 template conjuncts. [2021-10-21 20:02:58,112 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-21 20:02:58,112 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 20:02:58,119 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (115)] Waiting until timeout for monitored process [2021-10-21 20:02:58,134 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 20:02:58,170 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (115)] Forceful destruction successful, exit code 0 [2021-10-21 20:02:58,171 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:02:58,171 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:02:58,172 INFO L229 MonitoredProcess]: Starting monitored process 116 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:02:58,179 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 20:02:58,188 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-21 20:02:58,188 INFO L338 nArgumentSynthesizer]: Template has degree 3. [2021-10-21 20:02:58,189 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 20:02:58,189 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 20:02:58,189 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:02:58,189 INFO L205 nArgumentSynthesizer]: 6 template conjuncts. [2021-10-21 20:02:58,192 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-21 20:02:58,192 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 20:02:58,194 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (116)] Waiting until timeout for monitored process [2021-10-21 20:02:58,213 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 20:02:58,245 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (116)] Forceful destruction successful, exit code 0 [2021-10-21 20:02:58,246 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 20:02:58,246 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-10-21 20:02:58,246 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=176, Unknown=0, NotChecked=0, Total=210 [2021-10-21 20:02:58,247 INFO L87 Difference]: Start difference. First operand 122 states and 132 transitions. cyclomatic complexity: 11 Second operand has 15 states, 15 states have (on average 6.266666666666667) internal successors, (94), 15 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:02:59,733 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 20:02:59,734 INFO L93 Difference]: Finished difference Result 157 states and 162 transitions. [2021-10-21 20:02:59,735 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-10-21 20:02:59,735 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 157 states and 162 transitions. [2021-10-21 20:02:59,736 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 13 [2021-10-21 20:02:59,737 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 157 states to 120 states and 125 transitions. [2021-10-21 20:02:59,737 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 120 [2021-10-21 20:02:59,737 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 120 [2021-10-21 20:02:59,737 INFO L73 IsDeterministic]: Start isDeterministic. Operand 120 states and 125 transitions. [2021-10-21 20:02:59,737 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-21 20:02:59,737 INFO L681 BuchiCegarLoop]: Abstraction has 120 states and 125 transitions. [2021-10-21 20:02:59,737 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 120 states and 125 transitions. [2021-10-21 20:02:59,739 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 120 to 114. [2021-10-21 20:02:59,739 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 114 states, 114 states have (on average 1.043859649122807) internal successors, (119), 113 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:02:59,740 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 114 states and 119 transitions. [2021-10-21 20:02:59,740 INFO L704 BuchiCegarLoop]: Abstraction has 114 states and 119 transitions. [2021-10-21 20:02:59,740 INFO L587 BuchiCegarLoop]: Abstraction has 114 states and 119 transitions. [2021-10-21 20:02:59,740 INFO L425 BuchiCegarLoop]: ======== Iteration 30============ [2021-10-21 20:02:59,740 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 114 states and 119 transitions. [2021-10-21 20:02:59,741 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 13 [2021-10-21 20:02:59,741 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-21 20:02:59,741 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-21 20:02:59,741 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 20:02:59,742 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 20:02:59,742 INFO L791 eck$LassoCheckResult]: Stem: 26723#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string0.base, #t~string0.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string0.base, #t~string0.offset, 1);call write~init~int(0, #t~string0.base, 1 + #t~string0.offset, 1);call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(15); 26717#L-1 havoc main_#res;havoc main_#t~nondet3, main_#t~ret4, main_~a~0, main_~b~0, main_~r~1;havoc main_~a~0;havoc main_~b~0;havoc main_~r~1;main_~b~0 := main_#t~nondet3;havoc main_#t~nondet3;main_~a~0 := 234770789;mp_add_#in~a, mp_add_#in~b := main_~a~0, main_~b~0;havoc mp_add_#res;havoc mp_add_~a, mp_add_~b, mp_add_~a0~0, mp_add_~a1~0, mp_add_~a2~0, mp_add_~a3~0, mp_add_~b0~0, mp_add_~b1~0, mp_add_~b2~0, mp_add_~b3~0, mp_add_~r0~0, mp_add_~r1~0, mp_add_~r2~0, mp_add_~r3~0, mp_add_~carry~0, mp_add_~partial_sum~0, mp_add_~r~0, mp_add_~i~0, mp_add_~na~0, mp_add_~nb~0;mp_add_~a := mp_add_#in~a;mp_add_~b := mp_add_#in~b;havoc mp_add_~a0~0;havoc mp_add_~a1~0;havoc mp_add_~a2~0;havoc mp_add_~a3~0;havoc mp_add_~b0~0;havoc mp_add_~b1~0;havoc mp_add_~b2~0;havoc mp_add_~b3~0;havoc mp_add_~r0~0;havoc mp_add_~r1~0;havoc mp_add_~r2~0;havoc mp_add_~r3~0;havoc mp_add_~carry~0;havoc mp_add_~partial_sum~0;havoc mp_add_~r~0;havoc mp_add_~i~0;havoc mp_add_~na~0;havoc mp_add_~nb~0;mp_add_~a0~0 := mp_add_~a;mp_add_~a1~0 := mp_add_~a / 256;mp_add_~a2~0 := mp_add_~a / 65536;mp_add_~a3~0 := mp_add_~a / 16777216;mp_add_~b0~0 := mp_add_~b;mp_add_~b1~0 := mp_add_~b / 256;mp_add_~b2~0 := mp_add_~b / 65536;mp_add_~b3~0 := mp_add_~b / 16777216;mp_add_~na~0 := 4; 26710#L51 assume !(0 == mp_add_~a3~0 % 256); 26711#L51-1 mp_add_~nb~0 := 4; 26712#L61 assume 0 == mp_add_~b3~0 % 256;mp_add_~nb~0 := mp_add_~nb~0 % 256 - 1; 26713#L63 assume 0 == mp_add_~b2~0 % 256;mp_add_~nb~0 := mp_add_~nb~0 % 256 - 1; 26714#L65 assume !(0 == mp_add_~b1~0 % 256); 26720#L61-1 mp_add_~carry~0 := 0;mp_add_~i~0 := 0; 26721#L72-2 assume !!((mp_add_~i~0 % 256 < mp_add_~na~0 % 256 || mp_add_~i~0 % 256 < mp_add_~nb~0 % 256) || 0 != mp_add_~carry~0 % 65536);mp_add_~partial_sum~0 := mp_add_~carry~0;mp_add_~carry~0 := 0; 26765#L75 assume mp_add_~i~0 % 256 < mp_add_~na~0 % 256; 26764#L76 assume 0 == mp_add_~i~0 % 256;mp_add_~partial_sum~0 := mp_add_~partial_sum~0 % 65536 + mp_add_~a0~0 % 256; 26763#L76-2 assume !(1 == mp_add_~i~0 % 256); 26762#L77-1 assume !(2 == mp_add_~i~0 % 256); 26761#L78-1 assume !(3 == mp_add_~i~0 % 256); 26760#L75-1 assume mp_add_~i~0 % 256 < mp_add_~nb~0 % 256; 26731#L82 assume 0 == mp_add_~i~0 % 256;mp_add_~partial_sum~0 := mp_add_~partial_sum~0 % 65536 + mp_add_~b0~0 % 256; 26732#L82-2 assume !(1 == mp_add_~i~0 % 256); 26757#L83-1 assume !(2 == mp_add_~i~0 % 256); 26756#L84-1 assume !(3 == mp_add_~i~0 % 256); 26755#L81 assume !(mp_add_~partial_sum~0 % 65536 > 255); 26754#L87-1 assume 0 == mp_add_~i~0 % 256;mp_add_~r0~0 := mp_add_~partial_sum~0; 26753#L91-1 assume !(1 == mp_add_~i~0 % 256); 26752#L92-1 assume !(2 == mp_add_~i~0 % 256); 26751#L93-1 assume !(3 == mp_add_~i~0 % 256); 26750#L94-1 mp_add_~i~0 := 1 + mp_add_~i~0 % 256; 26749#L72-2 assume !!((mp_add_~i~0 % 256 < mp_add_~na~0 % 256 || mp_add_~i~0 % 256 < mp_add_~nb~0 % 256) || 0 != mp_add_~carry~0 % 65536);mp_add_~partial_sum~0 := mp_add_~carry~0;mp_add_~carry~0 := 0; 26748#L75 assume mp_add_~i~0 % 256 < mp_add_~na~0 % 256; 26747#L76 assume !(0 == mp_add_~i~0 % 256); 26746#L76-2 assume 1 == mp_add_~i~0 % 256;mp_add_~partial_sum~0 := mp_add_~partial_sum~0 % 65536 + mp_add_~a1~0 % 256; 26745#L77-1 assume !(2 == mp_add_~i~0 % 256); 26744#L78-1 assume !(3 == mp_add_~i~0 % 256); 26743#L75-1 assume mp_add_~i~0 % 256 < mp_add_~nb~0 % 256; 26742#L82 assume !(0 == mp_add_~i~0 % 256); 26741#L82-2 assume 1 == mp_add_~i~0 % 256;mp_add_~partial_sum~0 := mp_add_~partial_sum~0 % 65536 + mp_add_~b1~0 % 256; 26739#L83-1 assume !(2 == mp_add_~i~0 % 256); 26740#L84-1 assume !(3 == mp_add_~i~0 % 256); 26728#L81 assume mp_add_~partial_sum~0 % 65536 > 255;mp_add_~partial_sum~0 := ~bitwiseAnd(mp_add_~partial_sum~0 % 65536, 255);mp_add_~carry~0 := 1; 26729#L87-1 assume !(0 == mp_add_~i~0 % 256); 26816#L91-1 assume 1 == mp_add_~i~0 % 256;mp_add_~r1~0 := mp_add_~partial_sum~0; 26815#L92-1 assume !(2 == mp_add_~i~0 % 256); 26814#L93-1 assume !(3 == mp_add_~i~0 % 256); 26719#L94-1 mp_add_~i~0 := 1 + mp_add_~i~0 % 256; 26715#L72-2 assume !!((mp_add_~i~0 % 256 < mp_add_~na~0 % 256 || mp_add_~i~0 % 256 < mp_add_~nb~0 % 256) || 0 != mp_add_~carry~0 % 65536);mp_add_~partial_sum~0 := mp_add_~carry~0;mp_add_~carry~0 := 0; 26716#L75 assume mp_add_~i~0 % 256 < mp_add_~na~0 % 256; 26735#L76 assume !(0 == mp_add_~i~0 % 256); 26724#L76-2 assume !(1 == mp_add_~i~0 % 256); 26725#L77-1 assume 2 == mp_add_~i~0 % 256;mp_add_~partial_sum~0 := mp_add_~partial_sum~0 % 65536 + mp_add_~a2~0 % 256; 26809#L78-1 assume !(3 == mp_add_~i~0 % 256); 26808#L75-1 assume !(mp_add_~i~0 % 256 < mp_add_~nb~0 % 256); 26807#L81 assume mp_add_~partial_sum~0 % 65536 > 255;mp_add_~partial_sum~0 := ~bitwiseAnd(mp_add_~partial_sum~0 % 65536, 255);mp_add_~carry~0 := 1; 26805#L87-1 assume !(0 == mp_add_~i~0 % 256); 26803#L91-1 assume !(1 == mp_add_~i~0 % 256); 26801#L92-1 assume 2 == mp_add_~i~0 % 256;mp_add_~r2~0 := mp_add_~partial_sum~0; 26799#L93-1 assume !(3 == mp_add_~i~0 % 256); 26797#L94-1 mp_add_~i~0 := 1 + mp_add_~i~0 % 256; 26795#L72-2 assume !!((mp_add_~i~0 % 256 < mp_add_~na~0 % 256 || mp_add_~i~0 % 256 < mp_add_~nb~0 % 256) || 0 != mp_add_~carry~0 % 65536);mp_add_~partial_sum~0 := mp_add_~carry~0;mp_add_~carry~0 := 0; 26793#L75 assume mp_add_~i~0 % 256 < mp_add_~na~0 % 256; 26791#L76 assume !(0 == mp_add_~i~0 % 256); 26789#L76-2 assume !(1 == mp_add_~i~0 % 256); 26787#L77-1 assume !(2 == mp_add_~i~0 % 256); 26785#L78-1 assume 3 == mp_add_~i~0 % 256;mp_add_~partial_sum~0 := mp_add_~partial_sum~0 % 65536 + mp_add_~a3~0 % 256; 26783#L75-1 assume !(mp_add_~i~0 % 256 < mp_add_~nb~0 % 256); 26780#L81 assume !(mp_add_~partial_sum~0 % 65536 > 255); 26781#L87-1 assume !(0 == mp_add_~i~0 % 256); 26820#L91-1 assume !(1 == mp_add_~i~0 % 256); 26819#L92-1 assume !(2 == mp_add_~i~0 % 256); 26770#L93-1 assume 3 == mp_add_~i~0 % 256;mp_add_~r3~0 := mp_add_~partial_sum~0; 26771#L94-1 [2021-10-21 20:02:59,742 INFO L793 eck$LassoCheckResult]: Loop: 26771#L94-1 mp_add_~i~0 := 1 + mp_add_~i~0 % 256; 26818#L72-2 assume !!((mp_add_~i~0 % 256 < mp_add_~na~0 % 256 || mp_add_~i~0 % 256 < mp_add_~nb~0 % 256) || 0 != mp_add_~carry~0 % 65536);mp_add_~partial_sum~0 := mp_add_~carry~0;mp_add_~carry~0 := 0; 26817#L75 assume !(mp_add_~i~0 % 256 < mp_add_~na~0 % 256); 26758#L75-1 assume mp_add_~i~0 % 256 < mp_add_~nb~0 % 256; 26759#L82 assume !(0 == mp_add_~i~0 % 256); 26736#L82-2 assume !(1 == mp_add_~i~0 % 256); 26737#L83-1 assume !(2 == mp_add_~i~0 % 256); 26733#L84-1 assume !(3 == mp_add_~i~0 % 256); 26734#L81 assume !(mp_add_~partial_sum~0 % 65536 > 255); 26779#L87-1 assume !(0 == mp_add_~i~0 % 256); 26777#L91-1 assume !(1 == mp_add_~i~0 % 256); 26775#L92-1 assume !(2 == mp_add_~i~0 % 256); 26772#L93-1 assume !(3 == mp_add_~i~0 % 256); 26771#L94-1 [2021-10-21 20:02:59,743 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:02:59,743 INFO L82 PathProgramCache]: Analyzing trace with hash 1140638096, now seen corresponding path program 1 times [2021-10-21 20:02:59,743 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:02:59,743 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1186348808] [2021-10-21 20:02:59,743 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:02:59,743 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:02:59,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:02:59,927 INFO L134 CoverageAnalysis]: Checked inductivity of 79 backedges. 57 proven. 6 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2021-10-21 20:02:59,927 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 20:02:59,927 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1186348808] [2021-10-21 20:02:59,928 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1186348808] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 20:02:59,928 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [493542833] [2021-10-21 20:02:59,928 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:02:59,928 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-21 20:02:59,928 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:02:59,931 INFO L229 MonitoredProcess]: Starting monitored process 117 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-21 20:02:59,949 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (117)] Waiting until timeout for monitored process [2021-10-21 20:03:00,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:03:00,523 INFO L263 TraceCheckSpWp]: Trace formula consists of 183 conjuncts, 15 conjunts are in the unsatisfiable core [2021-10-21 20:03:00,524 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 20:03:00,864 INFO L134 CoverageAnalysis]: Checked inductivity of 79 backedges. 57 proven. 6 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2021-10-21 20:03:00,865 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [493542833] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 20:03:00,865 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-21 20:03:00,865 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 10 [2021-10-21 20:03:00,865 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1452289082] [2021-10-21 20:03:00,866 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-10-21 20:03:00,866 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:03:00,866 INFO L82 PathProgramCache]: Analyzing trace with hash -1233229496, now seen corresponding path program 4 times [2021-10-21 20:03:00,866 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:03:00,867 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1926216318] [2021-10-21 20:03:00,867 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:03:00,867 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:03:00,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:03:00,872 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 20:03:00,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:03:00,876 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 20:03:01,097 INFO L210 LassoAnalysis]: Preferences: [2021-10-21 20:03:01,097 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-21 20:03:01,097 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-21 20:03:01,097 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-21 20:03:01,097 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-10-21 20:03:01,097 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:03:01,097 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-21 20:03:01,097 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-21 20:03:01,097 INFO L133 ssoRankerPreferences]: Filename of dumped script: byte_add_1-1.i_Iteration30_Loop [2021-10-21 20:03:01,097 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-21 20:03:01,097 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-21 20:03:01,098 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:03:01,129 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:03:01,416 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-21 20:03:01,416 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-10-21 20:03:01,417 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:03:01,417 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:03:01,418 INFO L229 MonitoredProcess]: Starting monitored process 118 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:03:01,418 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (118)] Waiting until timeout for monitored process [2021-10-21 20:03:01,419 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-21 20:03:01,419 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-21 20:03:01,466 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (118)] Ended with exit code 0 [2021-10-21 20:03:01,466 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:03:01,467 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:03:01,467 INFO L229 MonitoredProcess]: Starting monitored process 119 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:03:01,468 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (119)] Waiting until timeout for monitored process [2021-10-21 20:03:01,468 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-10-21 20:03:01,468 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-21 20:03:03,151 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-10-21 20:03:03,154 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (119)] Forceful destruction successful, exit code 0 [2021-10-21 20:03:03,154 INFO L210 LassoAnalysis]: Preferences: [2021-10-21 20:03:03,154 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-21 20:03:03,155 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-21 20:03:03,155 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-21 20:03:03,155 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-21 20:03:03,155 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:03:03,155 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-21 20:03:03,155 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-21 20:03:03,155 INFO L133 ssoRankerPreferences]: Filename of dumped script: byte_add_1-1.i_Iteration30_Loop [2021-10-21 20:03:03,155 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-21 20:03:03,155 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-21 20:03:03,156 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:03:03,185 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:03:03,474 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-21 20:03:03,474 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-10-21 20:03:03,474 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:03:03,474 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:03:03,476 INFO L229 MonitoredProcess]: Starting monitored process 120 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:03:03,477 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (120)] Waiting until timeout for monitored process [2021-10-21 20:03:03,478 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 20:03:03,484 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 20:03:03,485 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 20:03:03,485 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 20:03:03,485 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:03:03,485 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 20:03:03,486 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-21 20:03:03,487 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 20:03:03,489 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 20:03:03,508 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (120)] Forceful destruction successful, exit code 0 [2021-10-21 20:03:03,508 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:03:03,509 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:03:03,509 INFO L229 MonitoredProcess]: Starting monitored process 121 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:03:03,510 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (121)] Waiting until timeout for monitored process [2021-10-21 20:03:03,511 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 20:03:03,517 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 20:03:03,517 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 20:03:03,518 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 20:03:03,518 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:03:03,518 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 20:03:03,519 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-21 20:03:03,519 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 20:03:03,520 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 20:03:03,540 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (121)] Forceful destruction successful, exit code 0 [2021-10-21 20:03:03,540 INFO L490 LassoAnalysis]: Using template '2-nested'. [2021-10-21 20:03:03,540 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:03:03,541 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:03:03,541 INFO L229 MonitoredProcess]: Starting monitored process 122 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:03:03,542 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (122)] Waiting until timeout for monitored process [2021-10-21 20:03:03,542 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 [2021-10-21 20:03:03,549 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 20:03:03,549 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 20:03:03,549 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 20:03:03,549 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:03:03,550 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2021-10-21 20:03:03,552 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2021-10-21 20:03:03,552 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 20:03:03,556 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 20:03:03,575 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (122)] Ended with exit code 0 [2021-10-21 20:03:03,575 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:03:03,575 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:03:03,576 INFO L229 MonitoredProcess]: Starting monitored process 123 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:03:03,577 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (123)] Waiting until timeout for monitored process [2021-10-21 20:03:03,577 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 20:03:03,584 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 20:03:03,584 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 20:03:03,584 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 20:03:03,584 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:03:03,584 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2021-10-21 20:03:03,585 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2021-10-21 20:03:03,586 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 20:03:03,588 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 20:03:03,607 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (123)] Forceful destruction successful, exit code 0 [2021-10-21 20:03:03,607 INFO L490 LassoAnalysis]: Using template '3-nested'. [2021-10-21 20:03:03,607 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:03:03,608 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:03:03,608 INFO L229 MonitoredProcess]: Starting monitored process 124 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:03:03,609 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (124)] Waiting until timeout for monitored process [2021-10-21 20:03:03,609 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 20:03:03,617 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 20:03:03,617 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 20:03:03,617 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 20:03:03,617 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:03:03,617 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2021-10-21 20:03:03,621 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-10-21 20:03:03,621 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 20:03:03,642 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 20:03:03,662 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (124)] Ended with exit code 0 [2021-10-21 20:03:03,662 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:03:03,662 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:03:03,663 INFO L229 MonitoredProcess]: Starting monitored process 125 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:03:03,664 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 20:03:03,665 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (125)] Waiting until timeout for monitored process [2021-10-21 20:03:03,672 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 20:03:03,672 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 20:03:03,672 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 20:03:03,672 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:03:03,672 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2021-10-21 20:03:03,673 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-10-21 20:03:03,674 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 20:03:03,677 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 20:03:03,696 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (125)] Ended with exit code 0 [2021-10-21 20:03:03,696 INFO L490 LassoAnalysis]: Using template '4-nested'. [2021-10-21 20:03:03,696 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:03:03,696 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:03:03,697 INFO L229 MonitoredProcess]: Starting monitored process 126 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:03:03,697 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (126)] Waiting until timeout for monitored process [2021-10-21 20:03:03,698 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 20:03:03,705 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 20:03:03,705 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 20:03:03,706 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 20:03:03,706 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:03:03,706 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. [2021-10-21 20:03:03,711 INFO L401 nArgumentSynthesizer]: We have 5 Motzkin's Theorem applications. [2021-10-21 20:03:03,711 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 20:03:03,732 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 20:03:03,751 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (126)] Forceful destruction successful, exit code 0 [2021-10-21 20:03:03,751 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:03:03,752 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:03:03,752 INFO L229 MonitoredProcess]: Starting monitored process 127 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:03:03,754 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (127)] Waiting until timeout for monitored process [2021-10-21 20:03:03,754 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 20:03:03,761 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 20:03:03,761 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 20:03:03,762 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 20:03:03,762 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:03:03,762 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. [2021-10-21 20:03:03,764 INFO L401 nArgumentSynthesizer]: We have 5 Motzkin's Theorem applications. [2021-10-21 20:03:03,764 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 20:03:03,768 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 20:03:03,787 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (127)] Forceful destruction successful, exit code 0 [2021-10-21 20:03:03,787 INFO L490 LassoAnalysis]: Using template '2-phase'. [2021-10-21 20:03:03,787 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:03:03,787 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:03:03,788 INFO L229 MonitoredProcess]: Starting monitored process 128 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:03:03,792 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (128)] Waiting until timeout for monitored process [2021-10-21 20:03:03,792 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 20:03:03,799 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-21 20:03:03,800 INFO L338 nArgumentSynthesizer]: Template has degree 1. [2021-10-21 20:03:03,800 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 20:03:03,800 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 20:03:03,800 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:03:03,800 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2021-10-21 20:03:03,803 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2021-10-21 20:03:03,803 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 20:03:03,810 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 20:03:03,829 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (128)] Forceful destruction successful, exit code 0 [2021-10-21 20:03:03,829 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:03:03,829 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:03:03,830 INFO L229 MonitoredProcess]: Starting monitored process 129 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:03:03,831 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (129)] Waiting until timeout for monitored process [2021-10-21 20:03:03,831 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 20:03:03,838 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-21 20:03:03,838 INFO L338 nArgumentSynthesizer]: Template has degree 1. [2021-10-21 20:03:03,839 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 20:03:03,839 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 20:03:03,839 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:03:03,839 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2021-10-21 20:03:03,840 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2021-10-21 20:03:03,840 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 20:03:03,844 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 20:03:03,863 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (129)] Forceful destruction successful, exit code 0 [2021-10-21 20:03:03,863 INFO L490 LassoAnalysis]: Using template '3-phase'. [2021-10-21 20:03:03,864 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:03:03,864 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:03:03,871 INFO L229 MonitoredProcess]: Starting monitored process 130 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:03:03,878 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (130)] Waiting until timeout for monitored process [2021-10-21 20:03:03,878 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 [2021-10-21 20:03:03,886 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-21 20:03:03,886 INFO L338 nArgumentSynthesizer]: Template has degree 2. [2021-10-21 20:03:03,886 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 20:03:03,886 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 20:03:03,886 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:03:03,886 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2021-10-21 20:03:03,890 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-10-21 20:03:03,890 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 20:03:03,901 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 20:03:03,920 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (130)] Ended with exit code 0 [2021-10-21 20:03:03,920 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:03:03,920 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:03:03,921 INFO L229 MonitoredProcess]: Starting monitored process 131 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:03:03,921 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (131)] Waiting until timeout for monitored process [2021-10-21 20:03:03,922 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 20:03:03,930 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-21 20:03:03,930 INFO L338 nArgumentSynthesizer]: Template has degree 2. [2021-10-21 20:03:03,930 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 20:03:03,930 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 20:03:03,930 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:03:03,930 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2021-10-21 20:03:03,932 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-10-21 20:03:03,932 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 20:03:03,938 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 20:03:03,957 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (131)] Ended with exit code 0 [2021-10-21 20:03:03,957 INFO L490 LassoAnalysis]: Using template '4-phase'. [2021-10-21 20:03:03,957 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:03:03,957 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:03:03,958 INFO L229 MonitoredProcess]: Starting monitored process 132 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:03:03,958 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (132)] Waiting until timeout for monitored process [2021-10-21 20:03:03,959 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 20:03:03,967 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-21 20:03:03,967 INFO L338 nArgumentSynthesizer]: Template has degree 3. [2021-10-21 20:03:03,967 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 20:03:03,967 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 20:03:03,967 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:03:03,967 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. [2021-10-21 20:03:03,972 INFO L401 nArgumentSynthesizer]: We have 5 Motzkin's Theorem applications. [2021-10-21 20:03:03,972 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 20:03:03,988 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 20:03:04,006 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (132)] Ended with exit code 0 [2021-10-21 20:03:04,007 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:03:04,007 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:03:04,007 INFO L229 MonitoredProcess]: Starting monitored process 133 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:03:04,008 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (133)] Waiting until timeout for monitored process [2021-10-21 20:03:04,008 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 20:03:04,016 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-21 20:03:04,016 INFO L338 nArgumentSynthesizer]: Template has degree 3. [2021-10-21 20:03:04,016 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 20:03:04,016 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 20:03:04,016 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:03:04,016 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. [2021-10-21 20:03:04,019 INFO L401 nArgumentSynthesizer]: We have 5 Motzkin's Theorem applications. [2021-10-21 20:03:04,019 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 20:03:04,027 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 20:03:04,046 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (133)] Ended with exit code 0 [2021-10-21 20:03:04,046 INFO L490 LassoAnalysis]: Using template '2-lex'. [2021-10-21 20:03:04,046 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:03:04,046 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:03:04,047 INFO L229 MonitoredProcess]: Starting monitored process 134 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:03:04,048 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (134)] Waiting until timeout for monitored process [2021-10-21 20:03:04,048 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 [2021-10-21 20:03:04,055 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-21 20:03:04,055 INFO L338 nArgumentSynthesizer]: Template has degree 1. [2021-10-21 20:03:04,055 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 20:03:04,055 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 20:03:04,055 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:03:04,055 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2021-10-21 20:03:04,059 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-10-21 20:03:04,059 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 20:03:04,065 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 20:03:04,084 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (134)] Forceful destruction successful, exit code 0 [2021-10-21 20:03:04,085 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:03:04,085 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:03:04,085 INFO L229 MonitoredProcess]: Starting monitored process 135 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:03:04,086 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (135)] Waiting until timeout for monitored process [2021-10-21 20:03:04,086 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 20:03:04,093 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-21 20:03:04,094 INFO L338 nArgumentSynthesizer]: Template has degree 1. [2021-10-21 20:03:04,094 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 20:03:04,094 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 20:03:04,094 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:03:04,094 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2021-10-21 20:03:04,095 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-10-21 20:03:04,096 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 20:03:04,099 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 20:03:04,118 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (135)] Ended with exit code 0 [2021-10-21 20:03:04,119 INFO L490 LassoAnalysis]: Using template '3-lex'. [2021-10-21 20:03:04,119 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:03:04,119 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:03:04,120 INFO L229 MonitoredProcess]: Starting monitored process 136 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:03:04,121 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (136)] Waiting until timeout for monitored process [2021-10-21 20:03:04,121 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 20:03:04,129 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-21 20:03:04,129 INFO L338 nArgumentSynthesizer]: Template has degree 3. [2021-10-21 20:03:04,129 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 20:03:04,129 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 20:03:04,129 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:03:04,129 INFO L205 nArgumentSynthesizer]: 6 template conjuncts. [2021-10-21 20:03:04,140 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-21 20:03:04,140 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 20:03:04,160 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 20:03:04,179 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (136)] Ended with exit code 0 [2021-10-21 20:03:04,179 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:03:04,179 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:03:04,180 INFO L229 MonitoredProcess]: Starting monitored process 137 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:03:04,181 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (137)] Waiting until timeout for monitored process [2021-10-21 20:03:04,182 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 20:03:04,189 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-21 20:03:04,189 INFO L338 nArgumentSynthesizer]: Template has degree 3. [2021-10-21 20:03:04,189 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 20:03:04,189 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 20:03:04,189 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:03:04,189 INFO L205 nArgumentSynthesizer]: 6 template conjuncts. [2021-10-21 20:03:04,192 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-21 20:03:04,192 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 20:03:04,198 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 20:03:04,217 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (137)] Ended with exit code 0 [2021-10-21 20:03:04,218 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 20:03:04,218 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-10-21 20:03:04,218 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2021-10-21 20:03:04,218 INFO L87 Difference]: Start difference. First operand 114 states and 119 transitions. cyclomatic complexity: 6 Second operand has 10 states, 10 states have (on average 10.0) internal successors, (100), 10 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:03:04,407 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 20:03:04,408 INFO L93 Difference]: Finished difference Result 108 states and 110 transitions. [2021-10-21 20:03:04,414 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-21 20:03:04,414 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 108 states and 110 transitions. [2021-10-21 20:03:04,415 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 13 [2021-10-21 20:03:04,415 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 108 states to 108 states and 110 transitions. [2021-10-21 20:03:04,415 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 108 [2021-10-21 20:03:04,416 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 108 [2021-10-21 20:03:04,416 INFO L73 IsDeterministic]: Start isDeterministic. Operand 108 states and 110 transitions. [2021-10-21 20:03:04,416 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-21 20:03:04,416 INFO L681 BuchiCegarLoop]: Abstraction has 108 states and 110 transitions. [2021-10-21 20:03:04,416 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 108 states and 110 transitions. [2021-10-21 20:03:04,418 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 108 to 80. [2021-10-21 20:03:04,418 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 80 states, 80 states have (on average 1.025) internal successors, (82), 79 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:03:04,418 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 80 states and 82 transitions. [2021-10-21 20:03:04,419 INFO L704 BuchiCegarLoop]: Abstraction has 80 states and 82 transitions. [2021-10-21 20:03:04,419 INFO L587 BuchiCegarLoop]: Abstraction has 80 states and 82 transitions. [2021-10-21 20:03:04,419 INFO L425 BuchiCegarLoop]: ======== Iteration 31============ [2021-10-21 20:03:04,419 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 80 states and 82 transitions. [2021-10-21 20:03:04,419 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 13 [2021-10-21 20:03:04,420 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-21 20:03:04,420 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-21 20:03:04,420 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 20:03:04,420 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 20:03:04,421 INFO L791 eck$LassoCheckResult]: Stem: 27159#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string0.base, #t~string0.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string0.base, #t~string0.offset, 1);call write~init~int(0, #t~string0.base, 1 + #t~string0.offset, 1);call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(15); 27152#L-1 havoc main_#res;havoc main_#t~nondet3, main_#t~ret4, main_~a~0, main_~b~0, main_~r~1;havoc main_~a~0;havoc main_~b~0;havoc main_~r~1;main_~b~0 := main_#t~nondet3;havoc main_#t~nondet3;main_~a~0 := 234770789;mp_add_#in~a, mp_add_#in~b := main_~a~0, main_~b~0;havoc mp_add_#res;havoc mp_add_~a, mp_add_~b, mp_add_~a0~0, mp_add_~a1~0, mp_add_~a2~0, mp_add_~a3~0, mp_add_~b0~0, mp_add_~b1~0, mp_add_~b2~0, mp_add_~b3~0, mp_add_~r0~0, mp_add_~r1~0, mp_add_~r2~0, mp_add_~r3~0, mp_add_~carry~0, mp_add_~partial_sum~0, mp_add_~r~0, mp_add_~i~0, mp_add_~na~0, mp_add_~nb~0;mp_add_~a := mp_add_#in~a;mp_add_~b := mp_add_#in~b;havoc mp_add_~a0~0;havoc mp_add_~a1~0;havoc mp_add_~a2~0;havoc mp_add_~a3~0;havoc mp_add_~b0~0;havoc mp_add_~b1~0;havoc mp_add_~b2~0;havoc mp_add_~b3~0;havoc mp_add_~r0~0;havoc mp_add_~r1~0;havoc mp_add_~r2~0;havoc mp_add_~r3~0;havoc mp_add_~carry~0;havoc mp_add_~partial_sum~0;havoc mp_add_~r~0;havoc mp_add_~i~0;havoc mp_add_~na~0;havoc mp_add_~nb~0;mp_add_~a0~0 := mp_add_~a;mp_add_~a1~0 := mp_add_~a / 256;mp_add_~a2~0 := mp_add_~a / 65536;mp_add_~a3~0 := mp_add_~a / 16777216;mp_add_~b0~0 := mp_add_~b;mp_add_~b1~0 := mp_add_~b / 256;mp_add_~b2~0 := mp_add_~b / 65536;mp_add_~b3~0 := mp_add_~b / 16777216;mp_add_~na~0 := 4; 27147#L51 assume !(0 == mp_add_~a3~0 % 256); 27148#L51-1 mp_add_~nb~0 := 4; 27149#L61 assume 0 == mp_add_~b3~0 % 256;mp_add_~nb~0 := mp_add_~nb~0 % 256 - 1; 27150#L63 assume 0 == mp_add_~b2~0 % 256;mp_add_~nb~0 := mp_add_~nb~0 % 256 - 1; 27151#L65 assume !(0 == mp_add_~b1~0 % 256); 27157#L61-1 mp_add_~carry~0 := 0;mp_add_~i~0 := 0; 27158#L72-2 assume !!((mp_add_~i~0 % 256 < mp_add_~na~0 % 256 || mp_add_~i~0 % 256 < mp_add_~nb~0 % 256) || 0 != mp_add_~carry~0 % 65536);mp_add_~partial_sum~0 := mp_add_~carry~0;mp_add_~carry~0 := 0; 27183#L75 assume mp_add_~i~0 % 256 < mp_add_~na~0 % 256; 27182#L76 assume 0 == mp_add_~i~0 % 256;mp_add_~partial_sum~0 := mp_add_~partial_sum~0 % 65536 + mp_add_~a0~0 % 256; 27181#L76-2 assume !(1 == mp_add_~i~0 % 256); 27180#L77-1 assume !(2 == mp_add_~i~0 % 256); 27179#L78-1 assume !(3 == mp_add_~i~0 % 256); 27178#L75-1 assume mp_add_~i~0 % 256 < mp_add_~nb~0 % 256; 27177#L82 assume 0 == mp_add_~i~0 % 256;mp_add_~partial_sum~0 := mp_add_~partial_sum~0 % 65536 + mp_add_~b0~0 % 256; 27168#L82-2 assume !(1 == mp_add_~i~0 % 256); 27169#L83-1 assume !(2 == mp_add_~i~0 % 256); 27167#L84-1 assume !(3 == mp_add_~i~0 % 256); 27163#L81 assume !(mp_add_~partial_sum~0 % 65536 > 255); 27155#L87-1 assume 0 == mp_add_~i~0 % 256;mp_add_~r0~0 := mp_add_~partial_sum~0; 27144#L91-1 assume !(1 == mp_add_~i~0 % 256); 27145#L92-1 assume !(2 == mp_add_~i~0 % 256); 27146#L93-1 assume !(3 == mp_add_~i~0 % 256); 27156#L94-1 mp_add_~i~0 := 1 + mp_add_~i~0 % 256; 27153#L72-2 assume !!((mp_add_~i~0 % 256 < mp_add_~na~0 % 256 || mp_add_~i~0 % 256 < mp_add_~nb~0 % 256) || 0 != mp_add_~carry~0 % 65536);mp_add_~partial_sum~0 := mp_add_~carry~0;mp_add_~carry~0 := 0; 27154#L75 assume mp_add_~i~0 % 256 < mp_add_~na~0 % 256; 27170#L76 assume !(0 == mp_add_~i~0 % 256); 27189#L76-2 assume 1 == mp_add_~i~0 % 256;mp_add_~partial_sum~0 := mp_add_~partial_sum~0 % 65536 + mp_add_~a1~0 % 256; 27187#L77-1 assume !(2 == mp_add_~i~0 % 256); 27184#L78-1 assume !(3 == mp_add_~i~0 % 256); 27185#L75-1 assume mp_add_~i~0 % 256 < mp_add_~nb~0 % 256; 27165#L82 assume !(0 == mp_add_~i~0 % 256); 27166#L82-2 assume 1 == mp_add_~i~0 % 256;mp_add_~partial_sum~0 := mp_add_~partial_sum~0 % 65536 + mp_add_~b1~0 % 256; 27172#L83-1 assume !(2 == mp_add_~i~0 % 256); 27173#L84-1 assume !(3 == mp_add_~i~0 % 256); 27223#L81 assume !(mp_add_~partial_sum~0 % 65536 > 255); 27222#L87-1 assume !(0 == mp_add_~i~0 % 256); 27221#L91-1 assume 1 == mp_add_~i~0 % 256;mp_add_~r1~0 := mp_add_~partial_sum~0; 27220#L92-1 assume !(2 == mp_add_~i~0 % 256); 27219#L93-1 assume !(3 == mp_add_~i~0 % 256); 27217#L94-1 mp_add_~i~0 := 1 + mp_add_~i~0 % 256; 27215#L72-2 assume !!((mp_add_~i~0 % 256 < mp_add_~na~0 % 256 || mp_add_~i~0 % 256 < mp_add_~nb~0 % 256) || 0 != mp_add_~carry~0 % 65536);mp_add_~partial_sum~0 := mp_add_~carry~0;mp_add_~carry~0 := 0; 27213#L75 assume mp_add_~i~0 % 256 < mp_add_~na~0 % 256; 27174#L76 assume !(0 == mp_add_~i~0 % 256); 27160#L76-2 assume !(1 == mp_add_~i~0 % 256); 27161#L77-1 assume 2 == mp_add_~i~0 % 256;mp_add_~partial_sum~0 := mp_add_~partial_sum~0 % 65536 + mp_add_~a2~0 % 256; 27162#L78-1 assume !(3 == mp_add_~i~0 % 256); 27164#L75-1 assume !(mp_add_~i~0 % 256 < mp_add_~nb~0 % 256); 27171#L81 assume !(mp_add_~partial_sum~0 % 65536 > 255); 27218#L87-1 assume !(0 == mp_add_~i~0 % 256); 27216#L91-1 assume !(1 == mp_add_~i~0 % 256); 27214#L92-1 assume 2 == mp_add_~i~0 % 256;mp_add_~r2~0 := mp_add_~partial_sum~0; 27212#L93-1 assume !(3 == mp_add_~i~0 % 256); 27211#L94-1 mp_add_~i~0 := 1 + mp_add_~i~0 % 256; 27210#L72-2 assume !!((mp_add_~i~0 % 256 < mp_add_~na~0 % 256 || mp_add_~i~0 % 256 < mp_add_~nb~0 % 256) || 0 != mp_add_~carry~0 % 65536);mp_add_~partial_sum~0 := mp_add_~carry~0;mp_add_~carry~0 := 0; 27209#L75 assume mp_add_~i~0 % 256 < mp_add_~na~0 % 256; 27208#L76 assume !(0 == mp_add_~i~0 % 256); 27207#L76-2 assume !(1 == mp_add_~i~0 % 256); 27205#L77-1 assume !(2 == mp_add_~i~0 % 256); 27203#L78-1 assume 3 == mp_add_~i~0 % 256;mp_add_~partial_sum~0 := mp_add_~partial_sum~0 % 65536 + mp_add_~a3~0 % 256; 27201#L75-1 assume !(mp_add_~i~0 % 256 < mp_add_~nb~0 % 256); 27199#L81 assume !(mp_add_~partial_sum~0 % 65536 > 255); 27197#L87-1 assume !(0 == mp_add_~i~0 % 256); 27195#L91-1 assume !(1 == mp_add_~i~0 % 256); 27193#L92-1 assume !(2 == mp_add_~i~0 % 256); 27191#L93-1 assume 3 == mp_add_~i~0 % 256;mp_add_~r3~0 := mp_add_~partial_sum~0; 27190#L94-1 [2021-10-21 20:03:04,421 INFO L793 eck$LassoCheckResult]: Loop: 27190#L94-1 mp_add_~i~0 := 1 + mp_add_~i~0 % 256; 27188#L72-2 assume !!((mp_add_~i~0 % 256 < mp_add_~na~0 % 256 || mp_add_~i~0 % 256 < mp_add_~nb~0 % 256) || 0 != mp_add_~carry~0 % 65536);mp_add_~partial_sum~0 := mp_add_~carry~0;mp_add_~carry~0 := 0; 27186#L75 assume !(mp_add_~i~0 % 256 < mp_add_~na~0 % 256); 27175#L75-1 assume mp_add_~i~0 % 256 < mp_add_~nb~0 % 256; 27176#L82 assume !(0 == mp_add_~i~0 % 256); 27206#L82-2 assume !(1 == mp_add_~i~0 % 256); 27204#L83-1 assume !(2 == mp_add_~i~0 % 256); 27202#L84-1 assume !(3 == mp_add_~i~0 % 256); 27200#L81 assume !(mp_add_~partial_sum~0 % 65536 > 255); 27198#L87-1 assume !(0 == mp_add_~i~0 % 256); 27196#L91-1 assume !(1 == mp_add_~i~0 % 256); 27194#L92-1 assume !(2 == mp_add_~i~0 % 256); 27192#L93-1 assume !(3 == mp_add_~i~0 % 256); 27190#L94-1 [2021-10-21 20:03:04,421 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:03:04,421 INFO L82 PathProgramCache]: Analyzing trace with hash -151906736, now seen corresponding path program 1 times [2021-10-21 20:03:04,422 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:03:04,422 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [344974645] [2021-10-21 20:03:04,422 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:03:04,422 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:03:04,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:03:04,464 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 20:03:04,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:03:04,499 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 20:03:04,500 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:03:04,500 INFO L82 PathProgramCache]: Analyzing trace with hash -1233229496, now seen corresponding path program 5 times [2021-10-21 20:03:04,500 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:03:04,500 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1933096916] [2021-10-21 20:03:04,500 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:03:04,501 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:03:04,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:03:04,506 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 20:03:04,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:03:04,510 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 20:03:04,510 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:03:04,510 INFO L82 PathProgramCache]: Analyzing trace with hash -611234983, now seen corresponding path program 1 times [2021-10-21 20:03:04,511 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:03:04,511 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [701628616] [2021-10-21 20:03:04,511 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:03:04,511 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:03:04,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:03:04,761 INFO L134 CoverageAnalysis]: Checked inductivity of 122 backedges. 83 proven. 12 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2021-10-21 20:03:04,761 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 20:03:04,761 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [701628616] [2021-10-21 20:03:04,761 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [701628616] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 20:03:04,761 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [164019070] [2021-10-21 20:03:04,761 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:03:04,762 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-21 20:03:04,762 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:03:04,763 INFO L229 MonitoredProcess]: Starting monitored process 138 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-21 20:03:04,778 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (138)] Waiting until timeout for monitored process [2021-10-21 20:03:05,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:03:05,203 INFO L263 TraceCheckSpWp]: Trace formula consists of 197 conjuncts, 6 conjunts are in the unsatisfiable core [2021-10-21 20:03:05,204 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 20:03:05,696 INFO L134 CoverageAnalysis]: Checked inductivity of 122 backedges. 91 proven. 4 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2021-10-21 20:03:05,696 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [164019070] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 20:03:05,696 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-21 20:03:05,696 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 7] total 12 [2021-10-21 20:03:05,696 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2027294636] [2021-10-21 20:03:05,889 INFO L210 LassoAnalysis]: Preferences: [2021-10-21 20:03:05,889 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-21 20:03:05,889 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-21 20:03:05,889 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-21 20:03:05,889 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-10-21 20:03:05,889 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:03:05,889 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-21 20:03:05,889 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-21 20:03:05,889 INFO L133 ssoRankerPreferences]: Filename of dumped script: byte_add_1-1.i_Iteration31_Loop [2021-10-21 20:03:05,889 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-21 20:03:05,889 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-21 20:03:05,890 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:03:05,901 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:03:06,288 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-21 20:03:06,289 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-10-21 20:03:06,289 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:03:06,289 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:03:06,290 INFO L229 MonitoredProcess]: Starting monitored process 139 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:03:06,291 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (139)] Waiting until timeout for monitored process [2021-10-21 20:03:06,291 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-21 20:03:06,291 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-21 20:03:06,306 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-21 20:03:06,306 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: [] [2021-10-21 20:03:06,325 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (139)] Forceful destruction successful, exit code 0 [2021-10-21 20:03:06,325 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:03:06,325 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:03:06,326 INFO L229 MonitoredProcess]: Starting monitored process 140 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:03:06,326 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (140)] Waiting until timeout for monitored process [2021-10-21 20:03:06,327 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-21 20:03:06,327 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-21 20:03:06,387 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (140)] Ended with exit code 0 [2021-10-21 20:03:06,388 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:03:06,388 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:03:06,388 INFO L229 MonitoredProcess]: Starting monitored process 141 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:03:06,389 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (141)] Waiting until timeout for monitored process [2021-10-21 20:03:06,389 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-10-21 20:03:06,389 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-21 20:03:08,518 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-10-21 20:03:08,521 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (141)] Forceful destruction successful, exit code 0 [2021-10-21 20:03:08,522 INFO L210 LassoAnalysis]: Preferences: [2021-10-21 20:03:08,522 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-21 20:03:08,522 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-21 20:03:08,522 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-21 20:03:08,522 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-21 20:03:08,522 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:03:08,522 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-21 20:03:08,522 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-21 20:03:08,522 INFO L133 ssoRankerPreferences]: Filename of dumped script: byte_add_1-1.i_Iteration31_Loop [2021-10-21 20:03:08,522 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-21 20:03:08,522 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-21 20:03:08,523 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:03:08,565 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:03:08,902 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-21 20:03:08,902 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-10-21 20:03:08,902 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:03:08,902 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:03:08,903 INFO L229 MonitoredProcess]: Starting monitored process 142 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:03:08,904 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (142)] Waiting until timeout for monitored process [2021-10-21 20:03:08,904 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 20:03:08,913 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 20:03:08,913 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 20:03:08,913 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 20:03:08,913 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:03:08,913 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 20:03:08,915 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-21 20:03:08,915 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 20:03:08,919 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 20:03:08,942 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (142)] Forceful destruction successful, exit code 0 [2021-10-21 20:03:08,942 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:03:08,942 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:03:08,949 INFO L229 MonitoredProcess]: Starting monitored process 143 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:03:08,953 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (143)] Waiting until timeout for monitored process [2021-10-21 20:03:08,953 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 20:03:08,961 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 20:03:08,961 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 20:03:08,961 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 20:03:08,961 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:03:08,962 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 20:03:08,962 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-21 20:03:08,963 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 20:03:08,965 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 20:03:08,986 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (143)] Ended with exit code 0 [2021-10-21 20:03:08,986 INFO L490 LassoAnalysis]: Using template '2-nested'. [2021-10-21 20:03:08,987 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:03:08,987 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:03:08,987 INFO L229 MonitoredProcess]: Starting monitored process 144 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:03:08,988 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (144)] Waiting until timeout for monitored process [2021-10-21 20:03:08,989 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 20:03:08,997 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 20:03:08,997 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 20:03:08,997 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 20:03:08,997 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:03:08,997 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2021-10-21 20:03:09,000 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2021-10-21 20:03:09,000 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 20:03:09,005 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 20:03:09,025 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (144)] Ended with exit code 0 [2021-10-21 20:03:09,025 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:03:09,025 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:03:09,026 INFO L229 MonitoredProcess]: Starting monitored process 145 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:03:09,027 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (145)] Waiting until timeout for monitored process [2021-10-21 20:03:09,027 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 20:03:09,034 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 20:03:09,034 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 20:03:09,035 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 20:03:09,035 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:03:09,035 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2021-10-21 20:03:09,036 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2021-10-21 20:03:09,036 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 20:03:09,039 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 20:03:09,059 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (145)] Forceful destruction successful, exit code 0 [2021-10-21 20:03:09,059 INFO L490 LassoAnalysis]: Using template '3-nested'. [2021-10-21 20:03:09,060 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:03:09,060 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:03:09,061 INFO L229 MonitoredProcess]: Starting monitored process 146 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:03:09,069 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (146)] Waiting until timeout for monitored process [2021-10-21 20:03:09,070 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 20:03:09,078 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 20:03:09,078 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 20:03:09,078 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 20:03:09,078 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:03:09,078 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2021-10-21 20:03:09,085 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-10-21 20:03:09,086 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 20:03:09,091 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 20:03:09,112 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (146)] Forceful destruction successful, exit code 0 [2021-10-21 20:03:09,112 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:03:09,112 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:03:09,113 INFO L229 MonitoredProcess]: Starting monitored process 147 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:03:09,114 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (147)] Waiting until timeout for monitored process [2021-10-21 20:03:09,114 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 20:03:09,122 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 20:03:09,122 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 20:03:09,122 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 20:03:09,122 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:03:09,122 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2021-10-21 20:03:09,124 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-10-21 20:03:09,124 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 20:03:09,128 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 20:03:09,148 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (147)] Ended with exit code 0 [2021-10-21 20:03:09,149 INFO L490 LassoAnalysis]: Using template '4-nested'. [2021-10-21 20:03:09,149 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:03:09,149 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:03:09,150 INFO L229 MonitoredProcess]: Starting monitored process 148 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:03:09,150 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (148)] Waiting until timeout for monitored process [2021-10-21 20:03:09,151 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 20:03:09,159 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 20:03:09,159 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 20:03:09,159 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 20:03:09,159 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:03:09,159 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. [2021-10-21 20:03:09,163 INFO L401 nArgumentSynthesizer]: We have 5 Motzkin's Theorem applications. [2021-10-21 20:03:09,164 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 20:03:09,170 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 20:03:09,191 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (148)] Ended with exit code 0 [2021-10-21 20:03:09,191 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:03:09,192 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:03:09,192 INFO L229 MonitoredProcess]: Starting monitored process 149 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:03:09,193 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (149)] Waiting until timeout for monitored process [2021-10-21 20:03:09,193 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 20:03:09,201 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 20:03:09,201 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 20:03:09,202 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 20:03:09,202 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:03:09,202 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. [2021-10-21 20:03:09,204 INFO L401 nArgumentSynthesizer]: We have 5 Motzkin's Theorem applications. [2021-10-21 20:03:09,204 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 20:03:09,208 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 20:03:09,229 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (149)] Ended with exit code 0 [2021-10-21 20:03:09,229 INFO L490 LassoAnalysis]: Using template '2-phase'. [2021-10-21 20:03:09,229 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:03:09,229 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:03:09,230 INFO L229 MonitoredProcess]: Starting monitored process 150 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:03:09,231 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (150)] Waiting until timeout for monitored process [2021-10-21 20:03:09,231 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 20:03:09,239 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-21 20:03:09,239 INFO L338 nArgumentSynthesizer]: Template has degree 1. [2021-10-21 20:03:09,239 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 20:03:09,239 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 20:03:09,239 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:03:09,239 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2021-10-21 20:03:09,242 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2021-10-21 20:03:09,242 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 20:03:09,249 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 20:03:09,270 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (150)] Ended with exit code 0 [2021-10-21 20:03:09,271 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:03:09,271 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:03:09,271 INFO L229 MonitoredProcess]: Starting monitored process 151 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:03:09,272 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (151)] Waiting until timeout for monitored process [2021-10-21 20:03:09,273 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 20:03:09,281 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-21 20:03:09,281 INFO L338 nArgumentSynthesizer]: Template has degree 1. [2021-10-21 20:03:09,282 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 20:03:09,282 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 20:03:09,282 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:03:09,282 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2021-10-21 20:03:09,284 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2021-10-21 20:03:09,284 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 20:03:09,288 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 20:03:09,309 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (151)] Ended with exit code 0 [2021-10-21 20:03:09,309 INFO L490 LassoAnalysis]: Using template '3-phase'. [2021-10-21 20:03:09,309 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:03:09,309 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:03:09,310 INFO L229 MonitoredProcess]: Starting monitored process 152 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:03:09,311 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (152)] Waiting until timeout for monitored process [2021-10-21 20:03:09,311 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 20:03:09,319 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-21 20:03:09,319 INFO L338 nArgumentSynthesizer]: Template has degree 2. [2021-10-21 20:03:09,320 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 20:03:09,320 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 20:03:09,320 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:03:09,320 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2021-10-21 20:03:09,324 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-10-21 20:03:09,324 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 20:03:09,335 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 20:03:09,356 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (152)] Forceful destruction successful, exit code 0 [2021-10-21 20:03:09,356 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:03:09,356 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:03:09,357 INFO L229 MonitoredProcess]: Starting monitored process 153 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:03:09,358 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (153)] Waiting until timeout for monitored process [2021-10-21 20:03:09,358 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 20:03:09,366 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-21 20:03:09,366 INFO L338 nArgumentSynthesizer]: Template has degree 2. [2021-10-21 20:03:09,366 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 20:03:09,366 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 20:03:09,366 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:03:09,366 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2021-10-21 20:03:09,368 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-10-21 20:03:09,369 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 20:03:09,375 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 20:03:09,395 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (153)] Forceful destruction successful, exit code 0 [2021-10-21 20:03:09,396 INFO L490 LassoAnalysis]: Using template '4-phase'. [2021-10-21 20:03:09,396 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:03:09,396 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:03:09,397 INFO L229 MonitoredProcess]: Starting monitored process 154 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:03:09,397 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (154)] Waiting until timeout for monitored process [2021-10-21 20:03:09,398 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 20:03:09,406 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-21 20:03:09,406 INFO L338 nArgumentSynthesizer]: Template has degree 3. [2021-10-21 20:03:09,406 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 20:03:09,407 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 20:03:09,407 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:03:09,407 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. [2021-10-21 20:03:09,412 INFO L401 nArgumentSynthesizer]: We have 5 Motzkin's Theorem applications. [2021-10-21 20:03:09,412 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 20:03:09,430 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 20:03:09,450 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (154)] Ended with exit code 0 [2021-10-21 20:03:09,450 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:03:09,450 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:03:09,451 INFO L229 MonitoredProcess]: Starting monitored process 155 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:03:09,452 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (155)] Waiting until timeout for monitored process [2021-10-21 20:03:09,452 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 20:03:09,459 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-21 20:03:09,460 INFO L338 nArgumentSynthesizer]: Template has degree 3. [2021-10-21 20:03:09,460 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 20:03:09,460 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 20:03:09,460 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:03:09,460 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. [2021-10-21 20:03:09,462 INFO L401 nArgumentSynthesizer]: We have 5 Motzkin's Theorem applications. [2021-10-21 20:03:09,463 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 20:03:09,471 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 20:03:09,490 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (155)] Ended with exit code 0 [2021-10-21 20:03:09,490 INFO L490 LassoAnalysis]: Using template '2-lex'. [2021-10-21 20:03:09,490 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:03:09,490 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:03:09,491 INFO L229 MonitoredProcess]: Starting monitored process 156 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:03:09,491 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (156)] Waiting until timeout for monitored process [2021-10-21 20:03:09,492 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 20:03:09,499 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-21 20:03:09,499 INFO L338 nArgumentSynthesizer]: Template has degree 1. [2021-10-21 20:03:09,499 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 20:03:09,499 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 20:03:09,499 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:03:09,499 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2021-10-21 20:03:09,503 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-10-21 20:03:09,503 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 20:03:09,509 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 20:03:09,528 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (156)] Ended with exit code 0 [2021-10-21 20:03:09,528 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:03:09,528 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:03:09,529 INFO L229 MonitoredProcess]: Starting monitored process 157 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:03:09,530 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (157)] Waiting until timeout for monitored process [2021-10-21 20:03:09,530 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 [2021-10-21 20:03:09,537 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-21 20:03:09,537 INFO L338 nArgumentSynthesizer]: Template has degree 1. [2021-10-21 20:03:09,537 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 20:03:09,537 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 20:03:09,537 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:03:09,537 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2021-10-21 20:03:09,539 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-10-21 20:03:09,539 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 20:03:09,543 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 20:03:09,562 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (157)] Forceful destruction successful, exit code 0 [2021-10-21 20:03:09,562 INFO L490 LassoAnalysis]: Using template '3-lex'. [2021-10-21 20:03:09,562 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:03:09,562 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:03:09,563 INFO L229 MonitoredProcess]: Starting monitored process 158 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:03:09,564 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (158)] Waiting until timeout for monitored process [2021-10-21 20:03:09,564 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 [2021-10-21 20:03:09,571 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-21 20:03:09,571 INFO L338 nArgumentSynthesizer]: Template has degree 3. [2021-10-21 20:03:09,572 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 20:03:09,572 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 20:03:09,572 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:03:09,572 INFO L205 nArgumentSynthesizer]: 6 template conjuncts. [2021-10-21 20:03:09,577 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-21 20:03:09,577 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 20:03:09,587 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 20:03:09,605 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (158)] Ended with exit code 0 [2021-10-21 20:03:09,606 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:03:09,606 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:03:09,607 INFO L229 MonitoredProcess]: Starting monitored process 159 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:03:09,607 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (159)] Waiting until timeout for monitored process [2021-10-21 20:03:09,608 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 20:03:09,615 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-21 20:03:09,615 INFO L338 nArgumentSynthesizer]: Template has degree 3. [2021-10-21 20:03:09,615 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 20:03:09,615 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 20:03:09,615 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:03:09,615 INFO L205 nArgumentSynthesizer]: 6 template conjuncts. [2021-10-21 20:03:09,621 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-21 20:03:09,622 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 20:03:09,638 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 20:03:09,668 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (159)] Ended with exit code 0 [2021-10-21 20:03:09,668 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 20:03:09,669 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-10-21 20:03:09,669 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=99, Unknown=0, NotChecked=0, Total=132 [2021-10-21 20:03:09,669 INFO L87 Difference]: Start difference. First operand 80 states and 82 transitions. cyclomatic complexity: 3 Second operand has 12 states, 12 states have (on average 6.833333333333333) internal successors, (82), 12 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:03:10,579 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 20:03:10,580 INFO L93 Difference]: Finished difference Result 71 states and 72 transitions. [2021-10-21 20:03:10,580 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-10-21 20:03:10,580 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 71 states and 72 transitions. [2021-10-21 20:03:10,581 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-10-21 20:03:10,581 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 71 states to 0 states and 0 transitions. [2021-10-21 20:03:10,581 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2021-10-21 20:03:10,581 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2021-10-21 20:03:10,581 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2021-10-21 20:03:10,581 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-21 20:03:10,581 INFO L681 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-21 20:03:10,581 INFO L704 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-21 20:03:10,581 INFO L587 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-21 20:03:10,581 INFO L425 BuchiCegarLoop]: ======== Iteration 32============ [2021-10-21 20:03:10,581 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2021-10-21 20:03:10,581 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-10-21 20:03:10,581 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2021-10-21 20:03:10,587 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 21.10 08:03:10 BoogieIcfgContainer [2021-10-21 20:03:10,587 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-10-21 20:03:10,588 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-21 20:03:10,588 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-21 20:03:10,588 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-21 20:03:10,589 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 08:00:58" (3/4) ... [2021-10-21 20:03:10,592 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-10-21 20:03:10,593 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-21 20:03:10,594 INFO L168 Benchmark]: Toolchain (without parser) took 132815.40 ms. Allocated memory was 107.0 MB in the beginning and 247.5 MB in the end (delta: 140.5 MB). Free memory was 82.2 MB in the beginning and 60.0 MB in the end (delta: 22.2 MB). Peak memory consumption was 161.0 MB. Max. memory is 16.1 GB. [2021-10-21 20:03:10,595 INFO L168 Benchmark]: CDTParser took 0.27 ms. Allocated memory is still 107.0 MB. Free memory was 62.8 MB in the beginning and 62.7 MB in the end (delta: 58.5 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-21 20:03:10,595 INFO L168 Benchmark]: CACSL2BoogieTranslator took 405.04 ms. Allocated memory is still 107.0 MB. Free memory was 82.0 MB in the beginning and 79.7 MB in the end (delta: 2.3 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-21 20:03:10,596 INFO L168 Benchmark]: Boogie Procedure Inliner took 41.06 ms. Allocated memory is still 107.0 MB. Free memory was 79.7 MB in the beginning and 77.7 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-21 20:03:10,596 INFO L168 Benchmark]: Boogie Preprocessor took 27.73 ms. Allocated memory is still 107.0 MB. Free memory was 77.7 MB in the beginning and 76.5 MB in the end (delta: 1.1 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-21 20:03:10,596 INFO L168 Benchmark]: RCFGBuilder took 455.38 ms. Allocated memory is still 107.0 MB. Free memory was 76.3 MB in the beginning and 64.0 MB in the end (delta: 12.3 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2021-10-21 20:03:10,597 INFO L168 Benchmark]: BuchiAutomizer took 131876.05 ms. Allocated memory was 107.0 MB in the beginning and 247.5 MB in the end (delta: 140.5 MB). Free memory was 64.0 MB in the beginning and 60.2 MB in the end (delta: 3.7 MB). Peak memory consumption was 146.2 MB. Max. memory is 16.1 GB. [2021-10-21 20:03:10,597 INFO L168 Benchmark]: Witness Printer took 4.68 ms. Allocated memory is still 247.5 MB. Free memory was 60.2 MB in the beginning and 60.0 MB in the end (delta: 215.2 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-21 20:03:10,600 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27 ms. Allocated memory is still 107.0 MB. Free memory was 62.8 MB in the beginning and 62.7 MB in the end (delta: 58.5 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 405.04 ms. Allocated memory is still 107.0 MB. Free memory was 82.0 MB in the beginning and 79.7 MB in the end (delta: 2.3 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 41.06 ms. Allocated memory is still 107.0 MB. Free memory was 79.7 MB in the beginning and 77.7 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 27.73 ms. Allocated memory is still 107.0 MB. Free memory was 77.7 MB in the beginning and 76.5 MB in the end (delta: 1.1 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 455.38 ms. Allocated memory is still 107.0 MB. Free memory was 76.3 MB in the beginning and 64.0 MB in the end (delta: 12.3 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 131876.05 ms. Allocated memory was 107.0 MB in the beginning and 247.5 MB in the end (delta: 140.5 MB). Free memory was 64.0 MB in the beginning and 60.2 MB in the end (delta: 3.7 MB). Peak memory consumption was 146.2 MB. Max. memory is 16.1 GB. * Witness Printer took 4.68 ms. Allocated memory is still 247.5 MB. Free memory was 60.2 MB in the beginning and 60.0 MB in the end (delta: 215.2 kB). 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 31 terminating modules (31 trivial, 0 deterministic, 0 nondeterministic). 31 modules have a trivial ranking function, the largest among these consists of 15 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 131.8s and 32 iterations. TraceHistogramMax:7. Analysis of lassos took 55.0s. Construction of modules took 68.3s. Büchi inclusion checks took 7.6s. Highest rank in rank-based complementation 0. Minimization of det autom 31. Minimization of nondet autom 0. Automata minimization 300.0ms AutomataMinimizationTime, 30 MinimizatonAttempts, 4534 StatesRemovedByMinimization, 29 NontrivialMinimizations. Non-live state removal took 0.2s Buchi closure took 0.0s. Biggest automaton had 1001 states and ocurred in iteration 23. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 1304 SDtfs, 4037 SDslu, 2459 SDs, 0 SdLazy, 8609 SolverSat, 552 SolverUnsat, 4 SolverUnknown, 0 SolverNotchecked, 68321.5ms Time LassoAnalysisResults: nont0 unkn0 SFLI17 SFLT0 conc2 concLT0 SILN0 SILU5 SILI7 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital58 mio100 ax100 hnf100 lsp81 ukn100 mio100 lsp100 div393 bol100 ite100 ukn100 eq146 hnf47 smp69 dnf100 smp100 tf102 neg98 sie104 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 3 Time: 39ms VariablesStem: 0 VariablesLoop: 5 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 0 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 3 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 7 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 10.9s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2021-10-21 20:03:10,641 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (138)] Ended with exit code 0 [2021-10-21 20:03:10,829 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (117)] Forceful destruction successful, exit code 0 [2021-10-21 20:03:11,046 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (96)] Ended with exit code 0 [2021-10-21 20:03:11,229 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (75)] Ended with exit code 0 [2021-10-21 20:03:11,446 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (54)] Ended with exit code 0 [2021-10-21 20:03:11,628 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Ended with exit code 0 [2021-10-21 20:03:11,846 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2021-10-21 20:03:12,046 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2021-10-21 20:03:12,261 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2021-10-21 20:03:12,461 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2021-10-21 20:03:12,661 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2021-10-21 20:03:12,860 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2021-10-21 20:03:13,062 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-10-21 20:03:13,261 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-10-21 20:03:13,447 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2021-10-21 20:03:13,667 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddb5499e-16c0-47d6-a4db-3b4a8b1cf906/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...