./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 b2eff8ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/bitvector/byte_add_1-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD --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-b2eff8b [2021-10-28 23:41:09,539 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-28 23:41:09,541 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-28 23:41:09,579 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-28 23:41:09,580 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-28 23:41:09,582 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-28 23:41:09,583 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-28 23:41:09,586 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-28 23:41:09,588 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-28 23:41:09,589 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-28 23:41:09,590 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-28 23:41:09,592 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-28 23:41:09,592 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-28 23:41:09,593 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-28 23:41:09,595 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-28 23:41:09,597 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-28 23:41:09,598 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-28 23:41:09,599 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-28 23:41:09,601 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-28 23:41:09,604 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-28 23:41:09,606 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-28 23:41:09,608 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-28 23:41:09,610 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-28 23:41:09,611 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-28 23:41:09,615 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-28 23:41:09,615 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-28 23:41:09,616 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-28 23:41:09,617 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-28 23:41:09,618 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-28 23:41:09,619 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-28 23:41:09,619 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-28 23:41:09,620 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-28 23:41:09,621 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-28 23:41:09,622 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-28 23:41:09,624 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-28 23:41:09,624 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-28 23:41:09,625 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-28 23:41:09,625 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-28 23:41:09,626 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-28 23:41:09,627 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-28 23:41:09,628 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-28 23:41:09,629 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/config/svcomp-Termination-32bit-Automizer_Default.epf [2021-10-28 23:41:09,655 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-28 23:41:09,656 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-28 23:41:09,656 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-28 23:41:09,656 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-28 23:41:09,658 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-28 23:41:09,658 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-28 23:41:09,658 INFO L138 SettingsManager]: * Use SBE=true [2021-10-28 23:41:09,659 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-10-28 23:41:09,659 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-10-28 23:41:09,659 INFO L138 SettingsManager]: * Use old map elimination=false [2021-10-28 23:41:09,660 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-10-28 23:41:09,660 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-10-28 23:41:09,660 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-10-28 23:41:09,661 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-28 23:41:09,661 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-28 23:41:09,661 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-28 23:41:09,661 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-28 23:41:09,662 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-28 23:41:09,662 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-28 23:41:09,662 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-10-28 23:41:09,662 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-10-28 23:41:09,663 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-10-28 23:41:09,663 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-28 23:41:09,663 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-28 23:41:09,663 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-10-28 23:41:09,664 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-28 23:41:09,664 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-10-28 23:41:09,664 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-28 23:41:09,664 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-28 23:41:09,665 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-28 23:41:09,665 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-28 23:41:09,665 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-28 23:41:09,666 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-10-28 23:41:09,666 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_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0f228df5326e9a2af4c8b4cabb1b0357f6cae28b0c974d7c12db65aaebce6a00 [2021-10-28 23:41:09,933 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-28 23:41:09,955 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-28 23:41:09,959 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-28 23:41:09,961 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-28 23:41:09,962 INFO L275 PluginConnector]: CDTParser initialized [2021-10-28 23:41:09,963 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/../../sv-benchmarks/c/bitvector/byte_add_1-1.i [2021-10-28 23:41:10,035 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/data/deb848734/3e170e1b80fd4c90b4d1d10f3b364df6/FLAGf74804827 [2021-10-28 23:41:10,482 INFO L306 CDTParser]: Found 1 translation units. [2021-10-28 23:41:10,482 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/sv-benchmarks/c/bitvector/byte_add_1-1.i [2021-10-28 23:41:10,489 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/data/deb848734/3e170e1b80fd4c90b4d1d10f3b364df6/FLAGf74804827 [2021-10-28 23:41:10,841 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/data/deb848734/3e170e1b80fd4c90b4d1d10f3b364df6 [2021-10-28 23:41:10,843 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-28 23:41:10,845 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-28 23:41:10,846 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-28 23:41:10,851 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-28 23:41:10,854 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-28 23:41:10,855 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 11:41:10" (1/1) ... [2021-10-28 23:41:10,856 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@71ba6d64 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:41:10, skipping insertion in model container [2021-10-28 23:41:10,858 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 11:41:10" (1/1) ... [2021-10-28 23:41:10,865 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-28 23:41:10,891 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-28 23:41:11,079 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_e0c35475-3a6e-41a2-b58a-0d8d7f551643/sv-benchmarks/c/bitvector/byte_add_1-1.i[863,876] [2021-10-28 23:41:11,114 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 23:41:11,122 INFO L203 MainTranslator]: Completed pre-run [2021-10-28 23:41:11,131 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_e0c35475-3a6e-41a2-b58a-0d8d7f551643/sv-benchmarks/c/bitvector/byte_add_1-1.i[863,876] [2021-10-28 23:41:11,158 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 23:41:11,172 INFO L208 MainTranslator]: Completed translation [2021-10-28 23:41:11,172 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:41:11 WrapperNode [2021-10-28 23:41:11,173 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-28 23:41:11,174 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-28 23:41:11,174 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-28 23:41:11,174 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-28 23:41:11,182 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:41:11" (1/1) ... [2021-10-28 23:41:11,190 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:41:11" (1/1) ... [2021-10-28 23:41:11,215 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-28 23:41:11,216 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-28 23:41:11,216 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-28 23:41:11,216 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-28 23:41:11,225 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:41:11" (1/1) ... [2021-10-28 23:41:11,225 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:41:11" (1/1) ... [2021-10-28 23:41:11,228 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:41:11" (1/1) ... [2021-10-28 23:41:11,228 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:41:11" (1/1) ... [2021-10-28 23:41:11,235 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:41:11" (1/1) ... [2021-10-28 23:41:11,242 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:41:11" (1/1) ... [2021-10-28 23:41:11,244 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:41:11" (1/1) ... [2021-10-28 23:41:11,247 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-28 23:41:11,248 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-28 23:41:11,248 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-28 23:41:11,248 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-28 23:41:11,249 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:41:11" (1/1) ... [2021-10-28 23:41:11,257 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:41:11,269 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:41:11,281 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:41:11,285 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-10-28 23:41:11,322 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-28 23:41:11,323 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-28 23:41:11,323 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-28 23:41:11,323 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-28 23:41:11,622 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-28 23:41:11,622 INFO L299 CfgBuilder]: Removed 10 assume(true) statements. [2021-10-28 23:41:11,624 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 11:41:11 BoogieIcfgContainer [2021-10-28 23:41:11,624 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-28 23:41:11,625 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-10-28 23:41:11,626 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-10-28 23:41:11,629 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-10-28 23:41:11,630 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-28 23:41:11,630 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 28.10 11:41:10" (1/3) ... [2021-10-28 23:41:11,631 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@5e24ea18 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.10 11:41:11, skipping insertion in model container [2021-10-28 23:41:11,631 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-28 23:41:11,632 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:41:11" (2/3) ... [2021-10-28 23:41:11,632 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@5e24ea18 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.10 11:41:11, skipping insertion in model container [2021-10-28 23:41:11,632 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-28 23:41:11,632 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 11:41:11" (3/3) ... [2021-10-28 23:41:11,634 INFO L389 chiAutomizerObserver]: Analyzing ICFG byte_add_1-1.i [2021-10-28 23:41:11,677 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-10-28 23:41:11,678 INFO L360 BuchiCegarLoop]: Hoare is false [2021-10-28 23:41:11,678 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-10-28 23:41:11,678 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-10-28 23:41:11,678 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-10-28 23:41:11,678 INFO L364 BuchiCegarLoop]: Difference is false [2021-10-28 23:41:11,678 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-10-28 23:41:11,679 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-10-28 23:41:11,694 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) [2021-10-28 23:41:11,716 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 23 [2021-10-28 23:41:11,717 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 23:41:11,717 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 23:41:11,724 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2021-10-28 23:41:11,724 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:41:11,724 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-10-28 23:41:11,725 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) [2021-10-28 23:41:11,731 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 23 [2021-10-28 23:41:11,731 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 23:41:11,731 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 23:41:11,732 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2021-10-28 23:41:11,733 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:41:11,740 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 [2021-10-28 23:41:11,740 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 [2021-10-28 23:41:11,746 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:41:11,746 INFO L85 PathProgramCache]: Analyzing trace with hash 889938151, now seen corresponding path program 1 times [2021-10-28 23:41:11,756 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:41:11,757 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [897452329] [2021-10-28 23:41:11,757 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:41:11,758 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:41:11,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:41:11,926 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 23:41:11,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:41:12,028 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 23:41:12,056 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:41:12,056 INFO L85 PathProgramCache]: Analyzing trace with hash 318197182, now seen corresponding path program 1 times [2021-10-28 23:41:12,056 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:41:12,058 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1771317124] [2021-10-28 23:41:12,059 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:41:12,059 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:41:12,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:41:12,147 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:41:12,148 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:41:12,148 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1771317124] [2021-10-28 23:41:12,149 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1771317124] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 23:41:12,149 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:41:12,149 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-28 23:41:12,155 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [311613074] [2021-10-28 23:41:12,159 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-10-28 23:41:12,160 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:41:12,174 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-28 23:41:12,175 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 23:41:12,180 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) [2021-10-28 23:41:12,410 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:41:12,411 INFO L93 Difference]: Finished difference Result 64 states and 94 transitions. [2021-10-28 23:41:12,411 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-28 23:41:12,413 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 64 states and 94 transitions. [2021-10-28 23:41:12,419 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 41 [2021-10-28 23:41:12,424 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 64 states to 56 states and 86 transitions. [2021-10-28 23:41:12,425 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 56 [2021-10-28 23:41:12,425 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 56 [2021-10-28 23:41:12,426 INFO L73 IsDeterministic]: Start isDeterministic. Operand 56 states and 86 transitions. [2021-10-28 23:41:12,426 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-28 23:41:12,427 INFO L681 BuchiCegarLoop]: Abstraction has 56 states and 86 transitions. [2021-10-28 23:41:12,448 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56 states and 86 transitions. [2021-10-28 23:41:12,459 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56 to 54. [2021-10-28 23:41:12,460 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) [2021-10-28 23:41:12,461 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 84 transitions. [2021-10-28 23:41:12,462 INFO L704 BuchiCegarLoop]: Abstraction has 54 states and 84 transitions. [2021-10-28 23:41:12,462 INFO L587 BuchiCegarLoop]: Abstraction has 54 states and 84 transitions. [2021-10-28 23:41:12,463 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-10-28 23:41:12,463 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 54 states and 84 transitions. [2021-10-28 23:41:12,465 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 39 [2021-10-28 23:41:12,465 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 23:41:12,465 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 23:41:12,466 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:41:12,466 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:41:12,466 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 [2021-10-28 23:41:12,466 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 [2021-10-28 23:41:12,467 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:41:12,467 INFO L85 PathProgramCache]: Analyzing trace with hash 532072804, now seen corresponding path program 1 times [2021-10-28 23:41:12,468 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:41:12,468 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [391567719] [2021-10-28 23:41:12,468 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:41:12,468 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:41:12,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:41:12,681 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:41:12,681 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:41:12,681 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [391567719] [2021-10-28 23:41:12,682 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [391567719] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 23:41:12,682 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:41:12,682 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-28 23:41:12,682 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [547684027] [2021-10-28 23:41:12,683 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-10-28 23:41:12,683 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:41:12,684 INFO L85 PathProgramCache]: Analyzing trace with hash 1939143242, now seen corresponding path program 1 times [2021-10-28 23:41:12,684 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:41:12,684 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1128915242] [2021-10-28 23:41:12,684 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:41:12,685 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:41:12,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:41:12,801 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:41:12,801 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:41:12,802 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1128915242] [2021-10-28 23:41:12,802 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1128915242] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 23:41:12,802 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:41:12,802 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-28 23:41:12,803 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1548635283] [2021-10-28 23:41:12,803 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-10-28 23:41:12,803 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:41:12,804 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-28 23:41:12,804 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-28 23:41:12,807 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) [2021-10-28 23:41:13,204 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:41:13,204 INFO L93 Difference]: Finished difference Result 149 states and 228 transitions. [2021-10-28 23:41:13,205 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-28 23:41:13,205 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 149 states and 228 transitions. [2021-10-28 23:41:13,210 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 108 [2021-10-28 23:41:13,212 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 149 states to 149 states and 228 transitions. [2021-10-28 23:41:13,213 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 149 [2021-10-28 23:41:13,214 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 149 [2021-10-28 23:41:13,214 INFO L73 IsDeterministic]: Start isDeterministic. Operand 149 states and 228 transitions. [2021-10-28 23:41:13,215 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-28 23:41:13,215 INFO L681 BuchiCegarLoop]: Abstraction has 149 states and 228 transitions. [2021-10-28 23:41:13,219 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 149 states and 228 transitions. [2021-10-28 23:41:13,233 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 149 to 78. [2021-10-28 23:41:13,234 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) [2021-10-28 23:41:13,235 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 113 transitions. [2021-10-28 23:41:13,235 INFO L704 BuchiCegarLoop]: Abstraction has 78 states and 113 transitions. [2021-10-28 23:41:13,235 INFO L587 BuchiCegarLoop]: Abstraction has 78 states and 113 transitions. [2021-10-28 23:41:13,235 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2021-10-28 23:41:13,235 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 78 states and 113 transitions. [2021-10-28 23:41:13,237 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 39 [2021-10-28 23:41:13,237 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 23:41:13,237 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 23:41:13,238 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:41:13,238 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:41:13,239 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 [2021-10-28 23:41:13,239 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 [2021-10-28 23:41:13,243 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:41:13,244 INFO L85 PathProgramCache]: Analyzing trace with hash -384676570, now seen corresponding path program 1 times [2021-10-28 23:41:13,244 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:41:13,244 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [904778291] [2021-10-28 23:41:13,244 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:41:13,245 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:41:13,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:41:13,318 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:41:13,319 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:41:13,319 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [904778291] [2021-10-28 23:41:13,319 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [904778291] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 23:41:13,319 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:41:13,319 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-28 23:41:13,320 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [849360490] [2021-10-28 23:41:13,320 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-10-28 23:41:13,320 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:41:13,321 INFO L85 PathProgramCache]: Analyzing trace with hash 1939143242, now seen corresponding path program 2 times [2021-10-28 23:41:13,321 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:41:13,321 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1418716166] [2021-10-28 23:41:13,321 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:41:13,321 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:41:13,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:41:13,399 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:41:13,400 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:41:13,400 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1418716166] [2021-10-28 23:41:13,400 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1418716166] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 23:41:13,400 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:41:13,401 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-28 23:41:13,401 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1752015439] [2021-10-28 23:41:13,401 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-10-28 23:41:13,401 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:41:13,402 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-28 23:41:13,402 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 23:41:13,402 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) [2021-10-28 23:41:13,410 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:41:13,411 INFO L93 Difference]: Finished difference Result 66 states and 93 transitions. [2021-10-28 23:41:13,411 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-28 23:41:13,411 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 66 states and 93 transitions. [2021-10-28 23:41:13,413 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 39 [2021-10-28 23:41:13,416 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 66 states to 66 states and 93 transitions. [2021-10-28 23:41:13,419 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 66 [2021-10-28 23:41:13,420 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 66 [2021-10-28 23:41:13,420 INFO L73 IsDeterministic]: Start isDeterministic. Operand 66 states and 93 transitions. [2021-10-28 23:41:13,420 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-28 23:41:13,420 INFO L681 BuchiCegarLoop]: Abstraction has 66 states and 93 transitions. [2021-10-28 23:41:13,421 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states and 93 transitions. [2021-10-28 23:41:13,424 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 66. [2021-10-28 23:41:13,425 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) [2021-10-28 23:41:13,425 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 93 transitions. [2021-10-28 23:41:13,426 INFO L704 BuchiCegarLoop]: Abstraction has 66 states and 93 transitions. [2021-10-28 23:41:13,426 INFO L587 BuchiCegarLoop]: Abstraction has 66 states and 93 transitions. [2021-10-28 23:41:13,426 INFO L425 BuchiCegarLoop]: ======== Iteration 4============ [2021-10-28 23:41:13,426 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 66 states and 93 transitions. [2021-10-28 23:41:13,427 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 39 [2021-10-28 23:41:13,427 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 23:41:13,428 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 23:41:13,428 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:41:13,428 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:41:13,429 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 [2021-10-28 23:41:13,429 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 [2021-10-28 23:41:13,429 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:41:13,429 INFO L85 PathProgramCache]: Analyzing trace with hash 1874592092, now seen corresponding path program 1 times [2021-10-28 23:41:13,430 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:41:13,430 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1636784305] [2021-10-28 23:41:13,430 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:41:13,430 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:41:13,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:41:13,546 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:41:13,546 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:41:13,546 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1636784305] [2021-10-28 23:41:13,546 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1636784305] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 23:41:13,547 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:41:13,547 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-28 23:41:13,547 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [78571657] [2021-10-28 23:41:13,547 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-10-28 23:41:13,548 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:41:13,548 INFO L85 PathProgramCache]: Analyzing trace with hash 686981138, now seen corresponding path program 3 times [2021-10-28 23:41:13,548 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:41:13,549 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1158424146] [2021-10-28 23:41:13,549 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:41:13,549 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:41:13,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:41:13,608 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:41:13,609 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:41:13,609 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1158424146] [2021-10-28 23:41:13,609 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1158424146] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 23:41:13,609 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:41:13,609 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-28 23:41:13,610 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1062056262] [2021-10-28 23:41:13,610 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-10-28 23:41:13,610 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:41:13,611 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-28 23:41:13,611 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-28 23:41:13,611 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) [2021-10-28 23:41:13,783 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:41:13,783 INFO L93 Difference]: Finished difference Result 91 states and 134 transitions. [2021-10-28 23:41:13,784 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-28 23:41:13,784 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 91 states and 134 transitions. [2021-10-28 23:41:13,786 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 64 [2021-10-28 23:41:13,787 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 91 states to 91 states and 134 transitions. [2021-10-28 23:41:13,787 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 91 [2021-10-28 23:41:13,787 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 91 [2021-10-28 23:41:13,788 INFO L73 IsDeterministic]: Start isDeterministic. Operand 91 states and 134 transitions. [2021-10-28 23:41:13,788 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-28 23:41:13,788 INFO L681 BuchiCegarLoop]: Abstraction has 91 states and 134 transitions. [2021-10-28 23:41:13,788 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 91 states and 134 transitions. [2021-10-28 23:41:13,793 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 91 to 83. [2021-10-28 23:41:13,794 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) [2021-10-28 23:41:13,795 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83 states to 83 states and 120 transitions. [2021-10-28 23:41:13,795 INFO L704 BuchiCegarLoop]: Abstraction has 83 states and 120 transitions. [2021-10-28 23:41:13,795 INFO L587 BuchiCegarLoop]: Abstraction has 83 states and 120 transitions. [2021-10-28 23:41:13,795 INFO L425 BuchiCegarLoop]: ======== Iteration 5============ [2021-10-28 23:41:13,795 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 83 states and 120 transitions. [2021-10-28 23:41:13,796 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 56 [2021-10-28 23:41:13,796 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 23:41:13,796 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 23:41:13,797 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:41:13,798 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:41:13,798 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 [2021-10-28 23:41:13,798 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 [2021-10-28 23:41:13,798 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:41:13,799 INFO L85 PathProgramCache]: Analyzing trace with hash 1874592092, now seen corresponding path program 2 times [2021-10-28 23:41:13,799 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:41:13,799 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [466698642] [2021-10-28 23:41:13,799 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:41:13,799 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:41:13,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:41:13,912 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:41:13,912 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:41:13,912 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [466698642] [2021-10-28 23:41:13,912 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [466698642] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 23:41:13,913 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:41:13,913 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-28 23:41:13,913 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [900652714] [2021-10-28 23:41:13,913 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-10-28 23:41:13,914 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:41:13,914 INFO L85 PathProgramCache]: Analyzing trace with hash -1043280079, now seen corresponding path program 1 times [2021-10-28 23:41:13,914 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:41:13,914 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1576700600] [2021-10-28 23:41:13,914 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:41:13,914 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:41:13,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:41:13,952 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-10-28 23:41:13,952 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:41:13,953 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1576700600] [2021-10-28 23:41:13,953 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1576700600] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 23:41:13,953 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:41:13,953 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-28 23:41:13,953 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [985199161] [2021-10-28 23:41:13,954 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-10-28 23:41:13,954 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:41:13,954 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-28 23:41:13,955 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-28 23:41:13,955 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) [2021-10-28 23:41:14,125 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:41:14,125 INFO L93 Difference]: Finished difference Result 164 states and 234 transitions. [2021-10-28 23:41:14,125 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-28 23:41:14,126 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 164 states and 234 transitions. [2021-10-28 23:41:14,128 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 112 [2021-10-28 23:41:14,130 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 164 states to 164 states and 234 transitions. [2021-10-28 23:41:14,130 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 164 [2021-10-28 23:41:14,130 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 164 [2021-10-28 23:41:14,130 INFO L73 IsDeterministic]: Start isDeterministic. Operand 164 states and 234 transitions. [2021-10-28 23:41:14,131 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-28 23:41:14,132 INFO L681 BuchiCegarLoop]: Abstraction has 164 states and 234 transitions. [2021-10-28 23:41:14,132 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 164 states and 234 transitions. [2021-10-28 23:41:14,136 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 164 to 91. [2021-10-28 23:41:14,137 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) [2021-10-28 23:41:14,138 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 91 states and 128 transitions. [2021-10-28 23:41:14,138 INFO L704 BuchiCegarLoop]: Abstraction has 91 states and 128 transitions. [2021-10-28 23:41:14,138 INFO L587 BuchiCegarLoop]: Abstraction has 91 states and 128 transitions. [2021-10-28 23:41:14,139 INFO L425 BuchiCegarLoop]: ======== Iteration 6============ [2021-10-28 23:41:14,139 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 91 states and 128 transitions. [2021-10-28 23:41:14,140 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 56 [2021-10-28 23:41:14,140 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 23:41:14,140 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 23:41:14,141 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:41:14,141 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:41:14,142 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 [2021-10-28 23:41:14,142 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 [2021-10-28 23:41:14,142 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:41:14,142 INFO L85 PathProgramCache]: Analyzing trace with hash -2095675795, now seen corresponding path program 1 times [2021-10-28 23:41:14,143 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:41:14,143 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1042581073] [2021-10-28 23:41:14,143 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:41:14,143 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:41:14,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:41:14,225 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:41:14,226 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:41:14,226 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1042581073] [2021-10-28 23:41:14,226 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1042581073] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 23:41:14,226 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:41:14,227 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-28 23:41:14,227 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [688932529] [2021-10-28 23:41:14,227 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-10-28 23:41:14,228 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:41:14,228 INFO L85 PathProgramCache]: Analyzing trace with hash -1043280079, now seen corresponding path program 2 times [2021-10-28 23:41:14,228 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:41:14,228 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [842008664] [2021-10-28 23:41:14,228 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:41:14,229 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:41:14,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:41:14,248 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-10-28 23:41:14,248 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:41:14,248 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [842008664] [2021-10-28 23:41:14,248 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [842008664] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 23:41:14,249 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:41:14,249 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-28 23:41:14,249 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1954188794] [2021-10-28 23:41:14,249 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-10-28 23:41:14,250 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:41:14,250 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-28 23:41:14,250 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-28 23:41:14,251 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) [2021-10-28 23:41:14,601 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:41:14,601 INFO L93 Difference]: Finished difference Result 245 states and 348 transitions. [2021-10-28 23:41:14,602 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-28 23:41:14,602 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 245 states and 348 transitions. [2021-10-28 23:41:14,605 INFO L131 ngComponentsAnalysis]: Automaton has 6 accepting balls. 168 [2021-10-28 23:41:14,607 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 245 states to 245 states and 348 transitions. [2021-10-28 23:41:14,608 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 245 [2021-10-28 23:41:14,608 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 245 [2021-10-28 23:41:14,608 INFO L73 IsDeterministic]: Start isDeterministic. Operand 245 states and 348 transitions. [2021-10-28 23:41:14,609 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-28 23:41:14,609 INFO L681 BuchiCegarLoop]: Abstraction has 245 states and 348 transitions. [2021-10-28 23:41:14,610 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 245 states and 348 transitions. [2021-10-28 23:41:14,615 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 245 to 91. [2021-10-28 23:41:14,615 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) [2021-10-28 23:41:14,616 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 91 states and 128 transitions. [2021-10-28 23:41:14,616 INFO L704 BuchiCegarLoop]: Abstraction has 91 states and 128 transitions. [2021-10-28 23:41:14,616 INFO L587 BuchiCegarLoop]: Abstraction has 91 states and 128 transitions. [2021-10-28 23:41:14,616 INFO L425 BuchiCegarLoop]: ======== Iteration 7============ [2021-10-28 23:41:14,617 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 91 states and 128 transitions. [2021-10-28 23:41:14,617 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 56 [2021-10-28 23:41:14,618 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 23:41:14,618 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 23:41:14,618 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:41:14,619 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:41:14,619 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 [2021-10-28 23:41:14,619 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 [2021-10-28 23:41:14,619 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:41:14,619 INFO L85 PathProgramCache]: Analyzing trace with hash -1829134745, now seen corresponding path program 1 times [2021-10-28 23:41:14,620 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:41:14,620 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1022236172] [2021-10-28 23:41:14,620 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:41:14,620 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:41:14,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:41:14,702 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:41:14,702 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:41:14,702 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1022236172] [2021-10-28 23:41:14,703 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1022236172] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 23:41:14,704 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:41:14,704 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-28 23:41:14,704 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1001056390] [2021-10-28 23:41:14,704 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-10-28 23:41:14,705 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:41:14,705 INFO L85 PathProgramCache]: Analyzing trace with hash -1043280079, now seen corresponding path program 3 times [2021-10-28 23:41:14,705 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:41:14,705 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1594828313] [2021-10-28 23:41:14,705 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:41:14,706 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:41:14,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:41:14,739 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-10-28 23:41:14,739 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:41:14,740 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1594828313] [2021-10-28 23:41:14,740 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1594828313] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 23:41:14,740 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:41:14,740 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-28 23:41:14,740 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [590160198] [2021-10-28 23:41:14,741 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-10-28 23:41:14,741 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:41:14,742 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-28 23:41:14,742 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-10-28 23:41:14,742 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) [2021-10-28 23:41:14,848 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:41:14,849 INFO L93 Difference]: Finished difference Result 219 states and 318 transitions. [2021-10-28 23:41:14,849 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-28 23:41:14,849 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 219 states and 318 transitions. [2021-10-28 23:41:14,852 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 177 [2021-10-28 23:41:14,854 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 219 states to 219 states and 318 transitions. [2021-10-28 23:41:14,855 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 219 [2021-10-28 23:41:14,855 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 219 [2021-10-28 23:41:14,857 INFO L73 IsDeterministic]: Start isDeterministic. Operand 219 states and 318 transitions. [2021-10-28 23:41:14,858 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-28 23:41:14,858 INFO L681 BuchiCegarLoop]: Abstraction has 219 states and 318 transitions. [2021-10-28 23:41:14,858 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 219 states and 318 transitions. [2021-10-28 23:41:14,881 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 219 to 149. [2021-10-28 23:41:14,881 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) [2021-10-28 23:41:14,883 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 149 states to 149 states and 224 transitions. [2021-10-28 23:41:14,883 INFO L704 BuchiCegarLoop]: Abstraction has 149 states and 224 transitions. [2021-10-28 23:41:14,883 INFO L587 BuchiCegarLoop]: Abstraction has 149 states and 224 transitions. [2021-10-28 23:41:14,883 INFO L425 BuchiCegarLoop]: ======== Iteration 8============ [2021-10-28 23:41:14,883 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 149 states and 224 transitions. [2021-10-28 23:41:14,884 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 113 [2021-10-28 23:41:14,885 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 23:41:14,885 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 23:41:14,886 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:41:14,886 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:41:14,886 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 [2021-10-28 23:41:14,886 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 [2021-10-28 23:41:14,887 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:41:14,887 INFO L85 PathProgramCache]: Analyzing trace with hash 389365736, now seen corresponding path program 1 times [2021-10-28 23:41:14,887 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:41:14,887 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1679758053] [2021-10-28 23:41:14,888 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:41:14,888 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:41:14,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:41:14,935 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 23:41:14,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:41:14,988 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 23:41:14,989 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:41:14,989 INFO L85 PathProgramCache]: Analyzing trace with hash 857385497, now seen corresponding path program 1 times [2021-10-28 23:41:14,989 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:41:14,990 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1765716934] [2021-10-28 23:41:14,990 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:41:14,990 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:41:15,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:41:15,027 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-10-28 23:41:15,028 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:41:15,028 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1765716934] [2021-10-28 23:41:15,028 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1765716934] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 23:41:15,029 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:41:15,029 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-28 23:41:15,031 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1961374203] [2021-10-28 23:41:15,032 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-10-28 23:41:15,032 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:41:15,033 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-28 23:41:15,033 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 23:41:15,033 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) [2021-10-28 23:41:15,123 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:41:15,123 INFO L93 Difference]: Finished difference Result 194 states and 283 transitions. [2021-10-28 23:41:15,123 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-28 23:41:15,123 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 194 states and 283 transitions. [2021-10-28 23:41:15,126 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 158 [2021-10-28 23:41:15,128 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 194 states to 194 states and 283 transitions. [2021-10-28 23:41:15,128 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 194 [2021-10-28 23:41:15,129 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 194 [2021-10-28 23:41:15,129 INFO L73 IsDeterministic]: Start isDeterministic. Operand 194 states and 283 transitions. [2021-10-28 23:41:15,130 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-28 23:41:15,130 INFO L681 BuchiCegarLoop]: Abstraction has 194 states and 283 transitions. [2021-10-28 23:41:15,130 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 194 states and 283 transitions. [2021-10-28 23:41:15,136 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 194 to 191. [2021-10-28 23:41:15,136 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) [2021-10-28 23:41:15,138 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 191 states to 191 states and 280 transitions. [2021-10-28 23:41:15,138 INFO L704 BuchiCegarLoop]: Abstraction has 191 states and 280 transitions. [2021-10-28 23:41:15,138 INFO L587 BuchiCegarLoop]: Abstraction has 191 states and 280 transitions. [2021-10-28 23:41:15,138 INFO L425 BuchiCegarLoop]: ======== Iteration 9============ [2021-10-28 23:41:15,138 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 191 states and 280 transitions. [2021-10-28 23:41:15,140 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 155 [2021-10-28 23:41:15,140 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 23:41:15,140 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 23:41:15,146 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:41:15,146 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:41:15,147 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 [2021-10-28 23:41:15,149 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 [2021-10-28 23:41:15,149 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:41:15,149 INFO L85 PathProgramCache]: Analyzing trace with hash 389365736, now seen corresponding path program 2 times [2021-10-28 23:41:15,149 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:41:15,150 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1561033793] [2021-10-28 23:41:15,150 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:41:15,150 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:41:15,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:41:15,190 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 23:41:15,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:41:15,226 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 23:41:15,227 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:41:15,227 INFO L85 PathProgramCache]: Analyzing trace with hash 1165423065, now seen corresponding path program 1 times [2021-10-28 23:41:15,227 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:41:15,231 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1810497023] [2021-10-28 23:41:15,231 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:41:15,231 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:41:15,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:41:15,309 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:41:15,309 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:41:15,309 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1810497023] [2021-10-28 23:41:15,309 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1810497023] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 23:41:15,310 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:41:15,310 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-28 23:41:15,310 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1400168862] [2021-10-28 23:41:15,310 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-10-28 23:41:15,312 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:41:15,313 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-28 23:41:15,313 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-28 23:41:15,313 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) [2021-10-28 23:41:15,562 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:41:15,562 INFO L93 Difference]: Finished difference Result 367 states and 532 transitions. [2021-10-28 23:41:15,563 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-28 23:41:15,563 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 367 states and 532 transitions. [2021-10-28 23:41:15,568 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 311 [2021-10-28 23:41:15,572 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 367 states to 367 states and 532 transitions. [2021-10-28 23:41:15,572 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 367 [2021-10-28 23:41:15,573 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 367 [2021-10-28 23:41:15,573 INFO L73 IsDeterministic]: Start isDeterministic. Operand 367 states and 532 transitions. [2021-10-28 23:41:15,574 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-28 23:41:15,574 INFO L681 BuchiCegarLoop]: Abstraction has 367 states and 532 transitions. [2021-10-28 23:41:15,574 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 367 states and 532 transitions. [2021-10-28 23:41:15,580 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 367 to 288. [2021-10-28 23:41:15,580 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) [2021-10-28 23:41:15,582 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 288 states to 288 states and 419 transitions. [2021-10-28 23:41:15,582 INFO L704 BuchiCegarLoop]: Abstraction has 288 states and 419 transitions. [2021-10-28 23:41:15,582 INFO L587 BuchiCegarLoop]: Abstraction has 288 states and 419 transitions. [2021-10-28 23:41:15,582 INFO L425 BuchiCegarLoop]: ======== Iteration 10============ [2021-10-28 23:41:15,582 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 288 states and 419 transitions. [2021-10-28 23:41:15,584 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 249 [2021-10-28 23:41:15,584 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 23:41:15,584 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 23:41:15,585 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:41:15,586 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:41:15,586 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 [2021-10-28 23:41:15,586 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 [2021-10-28 23:41:15,586 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:41:15,587 INFO L85 PathProgramCache]: Analyzing trace with hash 389365736, now seen corresponding path program 3 times [2021-10-28 23:41:15,587 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:41:15,587 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2071275730] [2021-10-28 23:41:15,587 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:41:15,587 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:41:15,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:41:15,626 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 23:41:15,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:41:15,659 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 23:41:15,660 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:41:15,660 INFO L85 PathProgramCache]: Analyzing trace with hash 1115550935, now seen corresponding path program 1 times [2021-10-28 23:41:15,660 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:41:15,661 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1159166887] [2021-10-28 23:41:15,661 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:41:15,661 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:41:15,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:41:15,685 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-10-28 23:41:15,685 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:41:15,686 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1159166887] [2021-10-28 23:41:15,686 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1159166887] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 23:41:15,686 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:41:15,686 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-28 23:41:15,686 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1023707561] [2021-10-28 23:41:15,688 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-10-28 23:41:15,688 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:41:15,688 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-28 23:41:15,688 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 23:41:15,688 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) [2021-10-28 23:41:15,765 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:41:15,765 INFO L93 Difference]: Finished difference Result 340 states and 495 transitions. [2021-10-28 23:41:15,765 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-28 23:41:15,766 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 340 states and 495 transitions. [2021-10-28 23:41:15,769 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 301 [2021-10-28 23:41:15,772 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 340 states to 340 states and 495 transitions. [2021-10-28 23:41:15,772 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 340 [2021-10-28 23:41:15,773 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 340 [2021-10-28 23:41:15,773 INFO L73 IsDeterministic]: Start isDeterministic. Operand 340 states and 495 transitions. [2021-10-28 23:41:15,774 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-28 23:41:15,774 INFO L681 BuchiCegarLoop]: Abstraction has 340 states and 495 transitions. [2021-10-28 23:41:15,774 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 340 states and 495 transitions. [2021-10-28 23:41:15,780 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 340 to 334. [2021-10-28 23:41:15,781 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) [2021-10-28 23:41:15,783 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 334 states to 334 states and 489 transitions. [2021-10-28 23:41:15,783 INFO L704 BuchiCegarLoop]: Abstraction has 334 states and 489 transitions. [2021-10-28 23:41:15,783 INFO L587 BuchiCegarLoop]: Abstraction has 334 states and 489 transitions. [2021-10-28 23:41:15,783 INFO L425 BuchiCegarLoop]: ======== Iteration 11============ [2021-10-28 23:41:15,783 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 334 states and 489 transitions. [2021-10-28 23:41:15,786 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 295 [2021-10-28 23:41:15,786 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 23:41:15,786 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 23:41:15,787 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:41:15,787 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:41:15,787 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 [2021-10-28 23:41:15,787 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 [2021-10-28 23:41:15,788 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:41:15,788 INFO L85 PathProgramCache]: Analyzing trace with hash 389365736, now seen corresponding path program 4 times [2021-10-28 23:41:15,788 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:41:15,788 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [951191243] [2021-10-28 23:41:15,789 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:41:15,789 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:41:15,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:41:15,803 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 23:41:15,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:41:15,822 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 23:41:15,823 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:41:15,823 INFO L85 PathProgramCache]: Analyzing trace with hash 722523925, now seen corresponding path program 1 times [2021-10-28 23:41:15,823 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:41:15,823 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1745785034] [2021-10-28 23:41:15,824 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:41:15,824 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:41:15,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:41:15,972 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 8 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:41:15,972 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:41:15,972 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1745785034] [2021-10-28 23:41:15,973 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1745785034] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 23:41:15,973 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1580026236] [2021-10-28 23:41:15,973 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:41:15,973 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 23:41:15,973 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:41:15,975 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 23:41:16,002 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-10-28 23:41:16,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:41:16,038 INFO L263 TraceCheckSpWp]: Trace formula consists of 47 conjuncts, 5 conjunts are in the unsatisfiable core [2021-10-28 23:41:16,040 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:41:16,359 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 7 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:41:16,364 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1580026236] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 23:41:16,364 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-28 23:41:16,364 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 3] total 5 [2021-10-28 23:41:16,365 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [314729307] [2021-10-28 23:41:16,365 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-10-28 23:41:16,365 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:41:16,366 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-28 23:41:16,366 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-10-28 23:41:16,366 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) [2021-10-28 23:41:16,611 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:41:16,611 INFO L93 Difference]: Finished difference Result 359 states and 490 transitions. [2021-10-28 23:41:16,611 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-28 23:41:16,611 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 359 states and 490 transitions. [2021-10-28 23:41:16,615 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 306 [2021-10-28 23:41:16,618 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 359 states to 359 states and 490 transitions. [2021-10-28 23:41:16,619 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 359 [2021-10-28 23:41:16,619 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 359 [2021-10-28 23:41:16,619 INFO L73 IsDeterministic]: Start isDeterministic. Operand 359 states and 490 transitions. [2021-10-28 23:41:16,620 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-28 23:41:16,620 INFO L681 BuchiCegarLoop]: Abstraction has 359 states and 490 transitions. [2021-10-28 23:41:16,620 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 359 states and 490 transitions. [2021-10-28 23:41:16,626 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 359 to 302. [2021-10-28 23:41:16,627 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) [2021-10-28 23:41:16,629 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 302 states to 302 states and 428 transitions. [2021-10-28 23:41:16,629 INFO L704 BuchiCegarLoop]: Abstraction has 302 states and 428 transitions. [2021-10-28 23:41:16,629 INFO L587 BuchiCegarLoop]: Abstraction has 302 states and 428 transitions. [2021-10-28 23:41:16,629 INFO L425 BuchiCegarLoop]: ======== Iteration 12============ [2021-10-28 23:41:16,629 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 302 states and 428 transitions. [2021-10-28 23:41:16,631 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 257 [2021-10-28 23:41:16,632 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 23:41:16,632 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 23:41:16,633 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:41:16,633 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:41:16,633 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 [2021-10-28 23:41:16,635 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 [2021-10-28 23:41:16,635 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:41:16,635 INFO L85 PathProgramCache]: Analyzing trace with hash 389365736, now seen corresponding path program 5 times [2021-10-28 23:41:16,635 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:41:16,636 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1438409736] [2021-10-28 23:41:16,636 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:41:16,636 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:41:16,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:41:16,654 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 23:41:16,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:41:16,676 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 23:41:16,678 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:41:16,678 INFO L85 PathProgramCache]: Analyzing trace with hash 1570645289, now seen corresponding path program 1 times [2021-10-28 23:41:16,678 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:41:16,678 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [933158493] [2021-10-28 23:41:16,678 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:41:16,678 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:41:16,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:41:16,752 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:41:16,753 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:41:16,753 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [933158493] [2021-10-28 23:41:16,753 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [933158493] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 23:41:16,753 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:41:16,753 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-28 23:41:16,753 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1461419839] [2021-10-28 23:41:16,755 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-10-28 23:41:16,755 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:41:16,758 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-28 23:41:16,758 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-28 23:41:16,758 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) [2021-10-28 23:41:16,941 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:41:16,941 INFO L93 Difference]: Finished difference Result 457 states and 646 transitions. [2021-10-28 23:41:16,942 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-28 23:41:16,942 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 457 states and 646 transitions. [2021-10-28 23:41:16,946 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 406 [2021-10-28 23:41:16,951 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 457 states to 457 states and 646 transitions. [2021-10-28 23:41:16,951 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 457 [2021-10-28 23:41:16,953 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 457 [2021-10-28 23:41:16,953 INFO L73 IsDeterministic]: Start isDeterministic. Operand 457 states and 646 transitions. [2021-10-28 23:41:16,954 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-28 23:41:16,954 INFO L681 BuchiCegarLoop]: Abstraction has 457 states and 646 transitions. [2021-10-28 23:41:16,955 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 457 states and 646 transitions. [2021-10-28 23:41:16,963 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 457 to 344. [2021-10-28 23:41:16,964 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) [2021-10-28 23:41:16,966 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 344 states to 344 states and 498 transitions. [2021-10-28 23:41:16,966 INFO L704 BuchiCegarLoop]: Abstraction has 344 states and 498 transitions. [2021-10-28 23:41:16,966 INFO L587 BuchiCegarLoop]: Abstraction has 344 states and 498 transitions. [2021-10-28 23:41:16,966 INFO L425 BuchiCegarLoop]: ======== Iteration 13============ [2021-10-28 23:41:16,966 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 344 states and 498 transitions. [2021-10-28 23:41:16,969 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 308 [2021-10-28 23:41:16,969 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 23:41:16,969 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 23:41:16,971 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:41:16,971 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:41:16,972 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 [2021-10-28 23:41:16,972 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 [2021-10-28 23:41:16,973 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:41:16,973 INFO L85 PathProgramCache]: Analyzing trace with hash 389365736, now seen corresponding path program 6 times [2021-10-28 23:41:16,973 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:41:16,973 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [472514223] [2021-10-28 23:41:16,973 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:41:16,974 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:41:17,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:41:17,005 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 23:41:17,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:41:17,036 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 23:41:17,038 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:41:17,038 INFO L85 PathProgramCache]: Analyzing trace with hash 856847662, now seen corresponding path program 1 times [2021-10-28 23:41:17,038 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:41:17,038 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2067214541] [2021-10-28 23:41:17,038 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:41:17,039 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:41:17,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:41:17,106 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:41:17,107 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:41:17,107 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2067214541] [2021-10-28 23:41:17,107 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2067214541] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 23:41:17,107 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:41:17,107 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-28 23:41:17,107 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [372624668] [2021-10-28 23:41:17,108 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-10-28 23:41:17,108 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:41:17,108 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-28 23:41:17,108 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-28 23:41:17,109 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) [2021-10-28 23:41:17,183 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:41:17,183 INFO L93 Difference]: Finished difference Result 409 states and 582 transitions. [2021-10-28 23:41:17,184 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-28 23:41:17,184 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 409 states and 582 transitions. [2021-10-28 23:41:17,188 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 373 [2021-10-28 23:41:17,192 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 409 states to 409 states and 582 transitions. [2021-10-28 23:41:17,192 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 409 [2021-10-28 23:41:17,192 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 409 [2021-10-28 23:41:17,193 INFO L73 IsDeterministic]: Start isDeterministic. Operand 409 states and 582 transitions. [2021-10-28 23:41:17,193 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-28 23:41:17,193 INFO L681 BuchiCegarLoop]: Abstraction has 409 states and 582 transitions. [2021-10-28 23:41:17,194 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 409 states and 582 transitions. [2021-10-28 23:41:17,200 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 409 to 344. [2021-10-28 23:41:17,201 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) [2021-10-28 23:41:17,203 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 344 states to 344 states and 493 transitions. [2021-10-28 23:41:17,203 INFO L704 BuchiCegarLoop]: Abstraction has 344 states and 493 transitions. [2021-10-28 23:41:17,203 INFO L587 BuchiCegarLoop]: Abstraction has 344 states and 493 transitions. [2021-10-28 23:41:17,203 INFO L425 BuchiCegarLoop]: ======== Iteration 14============ [2021-10-28 23:41:17,203 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 344 states and 493 transitions. [2021-10-28 23:41:17,205 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 308 [2021-10-28 23:41:17,206 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 23:41:17,206 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 23:41:17,207 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:41:17,207 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] [2021-10-28 23:41:17,207 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 [2021-10-28 23:41:17,207 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 [2021-10-28 23:41:17,208 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:41:17,208 INFO L85 PathProgramCache]: Analyzing trace with hash 389365736, now seen corresponding path program 7 times [2021-10-28 23:41:17,208 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:41:17,208 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1791670287] [2021-10-28 23:41:17,208 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:41:17,208 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:41:17,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:41:17,222 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 23:41:17,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:41:17,240 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 23:41:17,241 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:41:17,241 INFO L85 PathProgramCache]: Analyzing trace with hash 1265935866, now seen corresponding path program 1 times [2021-10-28 23:41:17,241 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:41:17,241 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1464798998] [2021-10-28 23:41:17,242 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:41:17,242 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:41:17,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:41:17,265 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2021-10-28 23:41:17,265 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:41:17,265 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1464798998] [2021-10-28 23:41:17,265 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1464798998] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 23:41:17,266 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:41:17,266 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-28 23:41:17,266 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [851558065] [2021-10-28 23:41:17,266 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-10-28 23:41:17,266 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:41:17,267 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-28 23:41:17,267 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 23:41:17,267 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) [2021-10-28 23:41:17,346 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:41:17,346 INFO L93 Difference]: Finished difference Result 347 states and 478 transitions. [2021-10-28 23:41:17,346 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-28 23:41:17,346 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 347 states and 478 transitions. [2021-10-28 23:41:17,350 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 311 [2021-10-28 23:41:17,353 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 347 states to 347 states and 478 transitions. [2021-10-28 23:41:17,353 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 347 [2021-10-28 23:41:17,354 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 347 [2021-10-28 23:41:17,354 INFO L73 IsDeterministic]: Start isDeterministic. Operand 347 states and 478 transitions. [2021-10-28 23:41:17,355 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-28 23:41:17,355 INFO L681 BuchiCegarLoop]: Abstraction has 347 states and 478 transitions. [2021-10-28 23:41:17,355 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 347 states and 478 transitions. [2021-10-28 23:41:17,361 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 347 to 311. [2021-10-28 23:41:17,361 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) [2021-10-28 23:41:17,363 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 311 states to 311 states and 426 transitions. [2021-10-28 23:41:17,363 INFO L704 BuchiCegarLoop]: Abstraction has 311 states and 426 transitions. [2021-10-28 23:41:17,363 INFO L587 BuchiCegarLoop]: Abstraction has 311 states and 426 transitions. [2021-10-28 23:41:17,364 INFO L425 BuchiCegarLoop]: ======== Iteration 15============ [2021-10-28 23:41:17,364 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 311 states and 426 transitions. [2021-10-28 23:41:17,366 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 275 [2021-10-28 23:41:17,366 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 23:41:17,366 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 23:41:17,367 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:41:17,367 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] [2021-10-28 23:41:17,367 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 [2021-10-28 23:41:17,367 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 [2021-10-28 23:41:17,368 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:41:17,368 INFO L85 PathProgramCache]: Analyzing trace with hash 389365736, now seen corresponding path program 8 times [2021-10-28 23:41:17,368 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:41:17,368 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [256512231] [2021-10-28 23:41:17,368 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:41:17,369 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:41:17,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:41:17,383 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 23:41:17,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:41:17,401 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 23:41:17,401 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:41:17,402 INFO L85 PathProgramCache]: Analyzing trace with hash -1955946050, now seen corresponding path program 1 times [2021-10-28 23:41:17,402 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:41:17,402 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1184885794] [2021-10-28 23:41:17,402 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:41:17,402 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:41:17,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:41:17,463 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 24 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-28 23:41:17,463 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:41:17,464 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1184885794] [2021-10-28 23:41:17,464 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1184885794] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 23:41:17,464 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2119780374] [2021-10-28 23:41:17,464 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:41:17,464 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 23:41:17,464 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:41:17,468 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 23:41:17,486 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-10-28 23:41:17,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:41:17,536 INFO L263 TraceCheckSpWp]: Trace formula consists of 69 conjuncts, 6 conjunts are in the unsatisfiable core [2021-10-28 23:41:17,537 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:41:17,652 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 23 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-10-28 23:41:17,652 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2119780374] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 23:41:17,653 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-28 23:41:17,653 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 4] total 7 [2021-10-28 23:41:17,653 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [402165424] [2021-10-28 23:41:17,654 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-10-28 23:41:17,654 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:41:17,654 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-10-28 23:41:17,654 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-10-28 23:41:17,655 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) [2021-10-28 23:41:18,284 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:41:18,284 INFO L93 Difference]: Finished difference Result 414 states and 525 transitions. [2021-10-28 23:41:18,285 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-10-28 23:41:18,285 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 414 states and 525 transitions. [2021-10-28 23:41:18,289 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 373 [2021-10-28 23:41:18,293 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 414 states to 414 states and 525 transitions. [2021-10-28 23:41:18,293 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 414 [2021-10-28 23:41:18,294 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 414 [2021-10-28 23:41:18,294 INFO L73 IsDeterministic]: Start isDeterministic. Operand 414 states and 525 transitions. [2021-10-28 23:41:18,294 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-28 23:41:18,295 INFO L681 BuchiCegarLoop]: Abstraction has 414 states and 525 transitions. [2021-10-28 23:41:18,295 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 414 states and 525 transitions. [2021-10-28 23:41:18,301 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 414 to 279. [2021-10-28 23:41:18,301 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) [2021-10-28 23:41:18,303 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 279 states to 279 states and 365 transitions. [2021-10-28 23:41:18,303 INFO L704 BuchiCegarLoop]: Abstraction has 279 states and 365 transitions. [2021-10-28 23:41:18,303 INFO L587 BuchiCegarLoop]: Abstraction has 279 states and 365 transitions. [2021-10-28 23:41:18,303 INFO L425 BuchiCegarLoop]: ======== Iteration 16============ [2021-10-28 23:41:18,304 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 279 states and 365 transitions. [2021-10-28 23:41:18,305 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 243 [2021-10-28 23:41:18,306 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 23:41:18,306 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 23:41:18,306 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:41:18,307 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] [2021-10-28 23:41:18,307 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 [2021-10-28 23:41:18,307 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 [2021-10-28 23:41:18,307 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:41:18,308 INFO L85 PathProgramCache]: Analyzing trace with hash 389365736, now seen corresponding path program 9 times [2021-10-28 23:41:18,308 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:41:18,308 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1952915111] [2021-10-28 23:41:18,308 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:41:18,308 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:41:18,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:41:18,323 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 23:41:18,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:41:18,343 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 23:41:18,343 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:41:18,343 INFO L85 PathProgramCache]: Analyzing trace with hash -593187128, now seen corresponding path program 1 times [2021-10-28 23:41:18,344 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:41:18,344 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [321087141] [2021-10-28 23:41:18,344 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:41:18,344 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:41:18,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:41:18,461 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 23 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:41:18,461 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:41:18,461 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [321087141] [2021-10-28 23:41:18,462 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [321087141] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 23:41:18,462 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [686109041] [2021-10-28 23:41:18,462 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:41:18,462 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 23:41:18,462 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:41:18,488 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 23:41:18,507 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-10-28 23:41:18,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:41:18,573 INFO L263 TraceCheckSpWp]: Trace formula consists of 78 conjuncts, 5 conjunts are in the unsatisfiable core [2021-10-28 23:41:18,574 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:41:18,770 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2021-10-28 23:41:18,771 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [686109041] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 23:41:18,771 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-10-28 23:41:18,771 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [7] total 9 [2021-10-28 23:41:18,771 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1625566629] [2021-10-28 23:41:18,771 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-10-28 23:41:18,772 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:41:18,772 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-28 23:41:18,773 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2021-10-28 23:41:18,773 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) [2021-10-28 23:41:18,973 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:41:18,973 INFO L93 Difference]: Finished difference Result 348 states and 433 transitions. [2021-10-28 23:41:18,974 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-28 23:41:18,974 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 348 states and 433 transitions. [2021-10-28 23:41:18,977 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 312 [2021-10-28 23:41:18,981 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 348 states to 348 states and 433 transitions. [2021-10-28 23:41:18,981 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 348 [2021-10-28 23:41:18,982 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 348 [2021-10-28 23:41:18,982 INFO L73 IsDeterministic]: Start isDeterministic. Operand 348 states and 433 transitions. [2021-10-28 23:41:18,982 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-28 23:41:18,983 INFO L681 BuchiCegarLoop]: Abstraction has 348 states and 433 transitions. [2021-10-28 23:41:18,983 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 348 states and 433 transitions. [2021-10-28 23:41:18,988 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 348 to 292. [2021-10-28 23:41:18,989 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) [2021-10-28 23:41:18,990 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 292 states to 292 states and 370 transitions. [2021-10-28 23:41:18,991 INFO L704 BuchiCegarLoop]: Abstraction has 292 states and 370 transitions. [2021-10-28 23:41:18,991 INFO L587 BuchiCegarLoop]: Abstraction has 292 states and 370 transitions. [2021-10-28 23:41:18,991 INFO L425 BuchiCegarLoop]: ======== Iteration 17============ [2021-10-28 23:41:18,991 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 292 states and 370 transitions. [2021-10-28 23:41:18,993 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 256 [2021-10-28 23:41:18,993 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 23:41:18,993 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 23:41:18,996 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:41:18,996 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] [2021-10-28 23:41:18,996 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 [2021-10-28 23:41:18,997 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 [2021-10-28 23:41:18,997 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:41:18,997 INFO L85 PathProgramCache]: Analyzing trace with hash 389365736, now seen corresponding path program 10 times [2021-10-28 23:41:18,997 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:41:18,997 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1116166930] [2021-10-28 23:41:18,998 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:41:18,998 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:41:19,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:41:19,016 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 23:41:19,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:41:19,035 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 23:41:19,036 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:41:19,036 INFO L85 PathProgramCache]: Analyzing trace with hash 1797868163, now seen corresponding path program 1 times [2021-10-28 23:41:19,036 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:41:19,037 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1165796547] [2021-10-28 23:41:19,037 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:41:19,037 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:41:19,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:41:19,109 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 45 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2021-10-28 23:41:19,109 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:41:19,109 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1165796547] [2021-10-28 23:41:19,110 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1165796547] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 23:41:19,110 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:41:19,110 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-10-28 23:41:19,110 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [381685341] [2021-10-28 23:41:19,110 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-10-28 23:41:19,110 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:41:19,111 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-28 23:41:19,111 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-10-28 23:41:19,111 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) [2021-10-28 23:41:19,449 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:41:19,449 INFO L93 Difference]: Finished difference Result 588 states and 723 transitions. [2021-10-28 23:41:19,449 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-10-28 23:41:19,450 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 588 states and 723 transitions. [2021-10-28 23:41:19,456 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 461 [2021-10-28 23:41:19,461 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 588 states to 579 states and 712 transitions. [2021-10-28 23:41:19,461 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 579 [2021-10-28 23:41:19,462 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 579 [2021-10-28 23:41:19,462 INFO L73 IsDeterministic]: Start isDeterministic. Operand 579 states and 712 transitions. [2021-10-28 23:41:19,463 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-28 23:41:19,463 INFO L681 BuchiCegarLoop]: Abstraction has 579 states and 712 transitions. [2021-10-28 23:41:19,464 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 579 states and 712 transitions. [2021-10-28 23:41:19,474 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 579 to 466. [2021-10-28 23:41:19,475 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) [2021-10-28 23:41:19,477 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 466 states to 466 states and 582 transitions. [2021-10-28 23:41:19,478 INFO L704 BuchiCegarLoop]: Abstraction has 466 states and 582 transitions. [2021-10-28 23:41:19,478 INFO L587 BuchiCegarLoop]: Abstraction has 466 states and 582 transitions. [2021-10-28 23:41:19,478 INFO L425 BuchiCegarLoop]: ======== Iteration 18============ [2021-10-28 23:41:19,478 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 466 states and 582 transitions. [2021-10-28 23:41:19,481 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 392 [2021-10-28 23:41:19,482 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 23:41:19,482 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 23:41:19,483 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:41:19,484 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] [2021-10-28 23:41:19,484 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 [2021-10-28 23:41:19,484 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 [2021-10-28 23:41:19,484 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:41:19,485 INFO L85 PathProgramCache]: Analyzing trace with hash 389365736, now seen corresponding path program 11 times [2021-10-28 23:41:19,485 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:41:19,485 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [495647012] [2021-10-28 23:41:19,485 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:41:19,485 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:41:19,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:41:19,502 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 23:41:19,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:41:19,523 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 23:41:19,523 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:41:19,523 INFO L85 PathProgramCache]: Analyzing trace with hash 302130057, now seen corresponding path program 1 times [2021-10-28 23:41:19,524 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:41:19,524 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [246656777] [2021-10-28 23:41:19,524 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:41:19,524 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:41:19,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:41:19,595 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 50 proven. 3 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-10-28 23:41:19,595 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:41:19,596 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [246656777] [2021-10-28 23:41:19,596 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [246656777] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 23:41:19,596 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [333411295] [2021-10-28 23:41:19,596 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:41:19,596 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 23:41:19,596 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:41:19,600 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 23:41:19,608 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-10-28 23:41:19,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:41:19,698 INFO L263 TraceCheckSpWp]: Trace formula consists of 102 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-28 23:41:19,700 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:41:19,964 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 51 proven. 1 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2021-10-28 23:41:19,964 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [333411295] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 23:41:19,964 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-28 23:41:19,965 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2021-10-28 23:41:19,965 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1416542828] [2021-10-28 23:41:19,966 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-10-28 23:41:19,966 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:41:19,966 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-10-28 23:41:19,966 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-10-28 23:41:19,967 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) [2021-10-28 23:41:20,814 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:41:20,814 INFO L93 Difference]: Finished difference Result 963 states and 1187 transitions. [2021-10-28 23:41:20,815 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-10-28 23:41:20,815 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 963 states and 1187 transitions. [2021-10-28 23:41:20,823 INFO L131 ngComponentsAnalysis]: Automaton has 8 accepting balls. 804 [2021-10-28 23:41:20,831 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 963 states to 961 states and 1185 transitions. [2021-10-28 23:41:20,831 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 961 [2021-10-28 23:41:20,832 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 961 [2021-10-28 23:41:20,832 INFO L73 IsDeterministic]: Start isDeterministic. Operand 961 states and 1185 transitions. [2021-10-28 23:41:20,834 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-28 23:41:20,834 INFO L681 BuchiCegarLoop]: Abstraction has 961 states and 1185 transitions. [2021-10-28 23:41:20,835 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 961 states and 1185 transitions. [2021-10-28 23:41:20,847 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 961 to 689. [2021-10-28 23:41:20,848 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) [2021-10-28 23:41:20,851 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 689 states to 689 states and 878 transitions. [2021-10-28 23:41:20,851 INFO L704 BuchiCegarLoop]: Abstraction has 689 states and 878 transitions. [2021-10-28 23:41:20,851 INFO L587 BuchiCegarLoop]: Abstraction has 689 states and 878 transitions. [2021-10-28 23:41:20,852 INFO L425 BuchiCegarLoop]: ======== Iteration 19============ [2021-10-28 23:41:20,852 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 689 states and 878 transitions. [2021-10-28 23:41:20,856 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 615 [2021-10-28 23:41:20,856 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 23:41:20,856 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 23:41:20,857 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:41:20,857 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] [2021-10-28 23:41:20,857 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 [2021-10-28 23:41:20,863 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 [2021-10-28 23:41:20,863 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:41:20,864 INFO L85 PathProgramCache]: Analyzing trace with hash 389365736, now seen corresponding path program 12 times [2021-10-28 23:41:20,864 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:41:20,864 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1074024819] [2021-10-28 23:41:20,864 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:41:20,864 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:41:20,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:41:20,879 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 23:41:20,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:41:20,900 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 23:41:20,901 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:41:20,901 INFO L85 PathProgramCache]: Analyzing trace with hash 2112972027, now seen corresponding path program 1 times [2021-10-28 23:41:20,901 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:41:20,901 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [678690550] [2021-10-28 23:41:20,901 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:41:20,902 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:41:20,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:41:21,008 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 19 proven. 51 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:41:21,009 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:41:21,009 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [678690550] [2021-10-28 23:41:21,009 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [678690550] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 23:41:21,009 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1417889731] [2021-10-28 23:41:21,009 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:41:21,010 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 23:41:21,011 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:41:21,015 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 23:41:21,017 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-10-28 23:41:21,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:41:21,127 INFO L263 TraceCheckSpWp]: Trace formula consists of 111 conjuncts, 5 conjunts are in the unsatisfiable core [2021-10-28 23:41:21,128 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:41:21,400 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2021-10-28 23:41:21,400 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1417889731] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 23:41:21,400 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-10-28 23:41:21,400 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [6] total 8 [2021-10-28 23:41:21,401 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1197907291] [2021-10-28 23:41:21,402 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-10-28 23:41:21,402 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:41:21,403 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-28 23:41:21,403 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2021-10-28 23:41:21,404 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) [2021-10-28 23:41:21,666 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:41:21,666 INFO L93 Difference]: Finished difference Result 785 states and 918 transitions. [2021-10-28 23:41:21,667 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-28 23:41:21,667 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 785 states and 918 transitions. [2021-10-28 23:41:21,673 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 696 [2021-10-28 23:41:21,679 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 785 states to 738 states and 848 transitions. [2021-10-28 23:41:21,679 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 738 [2021-10-28 23:41:21,680 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 738 [2021-10-28 23:41:21,680 INFO L73 IsDeterministic]: Start isDeterministic. Operand 738 states and 848 transitions. [2021-10-28 23:41:21,681 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-28 23:41:21,681 INFO L681 BuchiCegarLoop]: Abstraction has 738 states and 848 transitions. [2021-10-28 23:41:21,682 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 738 states and 848 transitions. [2021-10-28 23:41:21,692 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 738 to 601. [2021-10-28 23:41:21,694 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) [2021-10-28 23:41:21,696 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 601 states to 601 states and 707 transitions. [2021-10-28 23:41:21,696 INFO L704 BuchiCegarLoop]: Abstraction has 601 states and 707 transitions. [2021-10-28 23:41:21,697 INFO L587 BuchiCegarLoop]: Abstraction has 601 states and 707 transitions. [2021-10-28 23:41:21,697 INFO L425 BuchiCegarLoop]: ======== Iteration 20============ [2021-10-28 23:41:21,697 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 601 states and 707 transitions. [2021-10-28 23:41:21,700 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 566 [2021-10-28 23:41:21,700 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 23:41:21,701 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 23:41:21,701 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:41:21,701 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] [2021-10-28 23:41:21,702 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 [2021-10-28 23:41:21,702 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 [2021-10-28 23:41:21,702 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:41:21,702 INFO L85 PathProgramCache]: Analyzing trace with hash -890288343, now seen corresponding path program 1 times [2021-10-28 23:41:21,702 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:41:21,703 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1221229687] [2021-10-28 23:41:21,703 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:41:21,703 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:41:21,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:41:21,784 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:41:21,784 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:41:21,784 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1221229687] [2021-10-28 23:41:21,784 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1221229687] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 23:41:21,784 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:41:21,784 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-10-28 23:41:21,785 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [152538365] [2021-10-28 23:41:21,785 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-10-28 23:41:21,785 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:41:21,785 INFO L85 PathProgramCache]: Analyzing trace with hash 1197554810, now seen corresponding path program 1 times [2021-10-28 23:41:21,785 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:41:21,786 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [411837579] [2021-10-28 23:41:21,786 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:41:21,786 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:41:21,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:41:21,903 INFO L134 CoverageAnalysis]: Checked inductivity of 130 backedges. 24 proven. 106 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:41:21,903 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:41:21,903 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [411837579] [2021-10-28 23:41:21,903 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [411837579] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 23:41:21,904 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [369364623] [2021-10-28 23:41:21,904 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:41:21,904 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 23:41:21,904 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:41:21,906 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 23:41:21,929 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2021-10-28 23:41:22,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:41:22,045 INFO L263 TraceCheckSpWp]: Trace formula consists of 116 conjuncts, 7 conjunts are in the unsatisfiable core [2021-10-28 23:41:22,047 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:41:22,613 INFO L134 CoverageAnalysis]: Checked inductivity of 130 backedges. 83 proven. 10 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2021-10-28 23:41:22,613 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [369364623] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 23:41:22,613 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-28 23:41:22,613 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 5] total 10 [2021-10-28 23:41:22,614 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1324464093] [2021-10-28 23:41:22,614 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-10-28 23:41:22,614 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:41:22,615 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-10-28 23:41:22,615 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-10-28 23:41:22,615 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) [2021-10-28 23:41:23,339 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:41:23,339 INFO L93 Difference]: Finished difference Result 2371 states and 2782 transitions. [2021-10-28 23:41:23,340 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-10-28 23:41:23,340 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 2371 states and 2782 transitions. [2021-10-28 23:41:23,358 INFO L131 ngComponentsAnalysis]: Automaton has 20 accepting balls. 2264 [2021-10-28 23:41:23,375 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 2371 states to 2371 states and 2782 transitions. [2021-10-28 23:41:23,376 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 2371 [2021-10-28 23:41:23,378 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 2371 [2021-10-28 23:41:23,378 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2371 states and 2782 transitions. [2021-10-28 23:41:23,383 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-28 23:41:23,384 INFO L681 BuchiCegarLoop]: Abstraction has 2371 states and 2782 transitions. [2021-10-28 23:41:23,386 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2371 states and 2782 transitions. [2021-10-28 23:41:23,405 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2371 to 593. [2021-10-28 23:41:23,406 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) [2021-10-28 23:41:23,408 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 593 states to 593 states and 698 transitions. [2021-10-28 23:41:23,409 INFO L704 BuchiCegarLoop]: Abstraction has 593 states and 698 transitions. [2021-10-28 23:41:23,409 INFO L587 BuchiCegarLoop]: Abstraction has 593 states and 698 transitions. [2021-10-28 23:41:23,409 INFO L425 BuchiCegarLoop]: ======== Iteration 21============ [2021-10-28 23:41:23,409 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 593 states and 698 transitions. [2021-10-28 23:41:23,412 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 566 [2021-10-28 23:41:23,412 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 23:41:23,412 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 23:41:23,413 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:41:23,413 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] [2021-10-28 23:41:23,414 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 [2021-10-28 23:41:23,414 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 [2021-10-28 23:41:23,414 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:41:23,414 INFO L85 PathProgramCache]: Analyzing trace with hash 389365736, now seen corresponding path program 13 times [2021-10-28 23:41:23,414 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:41:23,415 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [714297579] [2021-10-28 23:41:23,415 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:41:23,415 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:41:23,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:41:23,429 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 23:41:23,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:41:23,444 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 23:41:23,444 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:41:23,444 INFO L85 PathProgramCache]: Analyzing trace with hash -455989548, now seen corresponding path program 1 times [2021-10-28 23:41:23,444 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:41:23,445 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1515329141] [2021-10-28 23:41:23,445 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:41:23,445 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:41:23,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:41:23,526 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 88 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2021-10-28 23:41:23,526 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:41:23,526 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1515329141] [2021-10-28 23:41:23,527 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1515329141] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 23:41:23,527 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:41:23,527 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-10-28 23:41:23,527 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1747235638] [2021-10-28 23:41:23,527 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-10-28 23:41:23,527 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:41:23,528 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-10-28 23:41:23,528 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2021-10-28 23:41:23,528 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) [2021-10-28 23:41:23,977 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:41:23,977 INFO L93 Difference]: Finished difference Result 836 states and 964 transitions. [2021-10-28 23:41:23,978 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-10-28 23:41:23,978 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 836 states and 964 transitions. [2021-10-28 23:41:23,984 INFO L131 ngComponentsAnalysis]: Automaton has 7 accepting balls. 753 [2021-10-28 23:41:23,991 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 836 states to 819 states and 945 transitions. [2021-10-28 23:41:23,991 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 819 [2021-10-28 23:41:23,992 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 819 [2021-10-28 23:41:23,993 INFO L73 IsDeterministic]: Start isDeterministic. Operand 819 states and 945 transitions. [2021-10-28 23:41:23,994 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-28 23:41:23,994 INFO L681 BuchiCegarLoop]: Abstraction has 819 states and 945 transitions. [2021-10-28 23:41:23,995 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 819 states and 945 transitions. [2021-10-28 23:41:24,008 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 819 to 712. [2021-10-28 23:41:24,010 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) [2021-10-28 23:41:24,013 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 712 states to 712 states and 834 transitions. [2021-10-28 23:41:24,013 INFO L704 BuchiCegarLoop]: Abstraction has 712 states and 834 transitions. [2021-10-28 23:41:24,013 INFO L587 BuchiCegarLoop]: Abstraction has 712 states and 834 transitions. [2021-10-28 23:41:24,013 INFO L425 BuchiCegarLoop]: ======== Iteration 22============ [2021-10-28 23:41:24,013 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 712 states and 834 transitions. [2021-10-28 23:41:24,017 INFO L131 ngComponentsAnalysis]: Automaton has 6 accepting balls. 685 [2021-10-28 23:41:24,017 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 23:41:24,017 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 23:41:24,018 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:41:24,018 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] [2021-10-28 23:41:24,019 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 [2021-10-28 23:41:24,019 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 [2021-10-28 23:41:24,019 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:41:24,019 INFO L85 PathProgramCache]: Analyzing trace with hash 389365736, now seen corresponding path program 14 times [2021-10-28 23:41:24,020 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:41:24,020 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [38838894] [2021-10-28 23:41:24,020 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:41:24,020 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:41:24,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:41:24,034 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 23:41:24,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:41:24,047 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 23:41:24,048 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:41:24,048 INFO L85 PathProgramCache]: Analyzing trace with hash 733714482, now seen corresponding path program 2 times [2021-10-28 23:41:24,048 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:41:24,048 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1624243782] [2021-10-28 23:41:24,048 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:41:24,048 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:41:24,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:41:24,142 INFO L134 CoverageAnalysis]: Checked inductivity of 118 backedges. 88 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2021-10-28 23:41:24,142 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:41:24,142 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1624243782] [2021-10-28 23:41:24,142 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1624243782] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 23:41:24,143 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:41:24,143 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-10-28 23:41:24,143 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1595423520] [2021-10-28 23:41:24,143 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-10-28 23:41:24,143 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:41:24,144 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-10-28 23:41:24,144 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2021-10-28 23:41:24,144 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) [2021-10-28 23:41:24,694 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:41:24,694 INFO L93 Difference]: Finished difference Result 936 states and 1081 transitions. [2021-10-28 23:41:24,694 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-10-28 23:41:24,694 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 936 states and 1081 transitions. [2021-10-28 23:41:24,701 INFO L131 ngComponentsAnalysis]: Automaton has 7 accepting balls. 842 [2021-10-28 23:41:24,708 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 936 states to 918 states and 1062 transitions. [2021-10-28 23:41:24,708 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 918 [2021-10-28 23:41:24,709 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 918 [2021-10-28 23:41:24,710 INFO L73 IsDeterministic]: Start isDeterministic. Operand 918 states and 1062 transitions. [2021-10-28 23:41:24,711 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-28 23:41:24,711 INFO L681 BuchiCegarLoop]: Abstraction has 918 states and 1062 transitions. [2021-10-28 23:41:24,712 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 918 states and 1062 transitions. [2021-10-28 23:41:24,727 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 918 to 829. [2021-10-28 23:41:24,729 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) [2021-10-28 23:41:24,732 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 829 states to 829 states and 970 transitions. [2021-10-28 23:41:24,732 INFO L704 BuchiCegarLoop]: Abstraction has 829 states and 970 transitions. [2021-10-28 23:41:24,733 INFO L587 BuchiCegarLoop]: Abstraction has 829 states and 970 transitions. [2021-10-28 23:41:24,733 INFO L425 BuchiCegarLoop]: ======== Iteration 23============ [2021-10-28 23:41:24,733 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 829 states and 970 transitions. [2021-10-28 23:41:24,737 INFO L131 ngComponentsAnalysis]: Automaton has 7 accepting balls. 802 [2021-10-28 23:41:24,738 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 23:41:24,738 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 23:41:24,739 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:41:24,739 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] [2021-10-28 23:41:24,739 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 [2021-10-28 23:41:24,739 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 [2021-10-28 23:41:24,740 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:41:24,740 INFO L85 PathProgramCache]: Analyzing trace with hash 389365736, now seen corresponding path program 15 times [2021-10-28 23:41:24,740 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:41:24,740 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [582473733] [2021-10-28 23:41:24,740 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:41:24,741 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:41:24,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:41:24,756 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 23:41:24,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:41:24,770 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 23:41:24,770 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:41:24,770 INFO L85 PathProgramCache]: Analyzing trace with hash -382324270, now seen corresponding path program 1 times [2021-10-28 23:41:24,771 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:41:24,771 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [712434954] [2021-10-28 23:41:24,771 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:41:24,771 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:41:24,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:41:24,861 INFO L134 CoverageAnalysis]: Checked inductivity of 118 backedges. 25 proven. 93 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:41:24,861 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:41:24,861 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [712434954] [2021-10-28 23:41:24,861 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [712434954] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 23:41:24,861 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1327346712] [2021-10-28 23:41:24,861 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:41:24,862 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 23:41:24,862 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:41:24,868 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 23:41:24,886 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2021-10-28 23:41:25,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:41:25,041 INFO L263 TraceCheckSpWp]: Trace formula consists of 134 conjuncts, 7 conjunts are in the unsatisfiable core [2021-10-28 23:41:25,043 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:41:38,354 INFO L134 CoverageAnalysis]: Checked inductivity of 118 backedges. 74 proven. 9 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2021-10-28 23:41:38,354 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1327346712] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 23:41:38,355 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-28 23:41:38,355 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 5] total 10 [2021-10-28 23:41:38,355 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [746427200] [2021-10-28 23:41:38,355 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-10-28 23:41:38,356 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:41:38,356 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-10-28 23:41:38,356 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=70, Unknown=1, NotChecked=0, Total=90 [2021-10-28 23:41:38,357 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) [2021-10-28 23:43:42,590 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:43:42,591 INFO L93 Difference]: Finished difference Result 1188 states and 1357 transitions. [2021-10-28 23:43:42,591 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-10-28 23:43:42,591 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 1188 states and 1357 transitions. [2021-10-28 23:43:42,600 INFO L131 ngComponentsAnalysis]: Automaton has 7 accepting balls. 1147 [2021-10-28 23:43:42,608 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 1188 states to 1174 states and 1333 transitions. [2021-10-28 23:43:42,609 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 1174 [2021-10-28 23:43:42,610 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 1174 [2021-10-28 23:43:42,610 INFO L73 IsDeterministic]: Start isDeterministic. Operand 1174 states and 1333 transitions. [2021-10-28 23:43:42,612 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-28 23:43:42,612 INFO L681 BuchiCegarLoop]: Abstraction has 1174 states and 1333 transitions. [2021-10-28 23:43:42,613 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1174 states and 1333 transitions. [2021-10-28 23:43:42,631 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1174 to 1001. [2021-10-28 23:43:42,633 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) [2021-10-28 23:43:42,636 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1001 states to 1001 states and 1148 transitions. [2021-10-28 23:43:42,637 INFO L704 BuchiCegarLoop]: Abstraction has 1001 states and 1148 transitions. [2021-10-28 23:43:42,637 INFO L587 BuchiCegarLoop]: Abstraction has 1001 states and 1148 transitions. [2021-10-28 23:43:42,637 INFO L425 BuchiCegarLoop]: ======== Iteration 24============ [2021-10-28 23:43:42,637 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 1001 states and 1148 transitions. [2021-10-28 23:43:42,642 INFO L131 ngComponentsAnalysis]: Automaton has 7 accepting balls. 974 [2021-10-28 23:43:42,643 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 23:43:42,643 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 23:43:42,644 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:43:42,644 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] [2021-10-28 23:43:42,644 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 [2021-10-28 23:43:42,644 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 [2021-10-28 23:43:42,645 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:43:42,645 INFO L85 PathProgramCache]: Analyzing trace with hash 389365736, now seen corresponding path program 16 times [2021-10-28 23:43:42,645 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:43:42,645 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1275846508] [2021-10-28 23:43:42,645 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:43:42,646 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:43:42,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:43:42,659 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 23:43:42,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:43:42,673 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 23:43:42,674 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:43:42,674 INFO L85 PathProgramCache]: Analyzing trace with hash 1186296946, now seen corresponding path program 2 times [2021-10-28 23:43:42,674 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:43:42,674 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1037588914] [2021-10-28 23:43:42,674 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:43:42,674 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:43:42,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:43:42,961 INFO L134 CoverageAnalysis]: Checked inductivity of 253 backedges. 192 proven. 9 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2021-10-28 23:43:42,961 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:43:42,961 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1037588914] [2021-10-28 23:43:42,961 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1037588914] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 23:43:42,961 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [602479114] [2021-10-28 23:43:42,962 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-28 23:43:42,962 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 23:43:42,962 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:43:42,964 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 23:43:42,990 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2021-10-28 23:43:43,213 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-10-28 23:43:43,213 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-28 23:43:43,214 INFO L263 TraceCheckSpWp]: Trace formula consists of 170 conjuncts, 8 conjunts are in the unsatisfiable core [2021-10-28 23:43:43,216 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:43:44,365 INFO L134 CoverageAnalysis]: Checked inductivity of 253 backedges. 103 proven. 1 refuted. 0 times theorem prover too weak. 149 trivial. 0 not checked. [2021-10-28 23:43:44,365 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [602479114] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 23:43:44,365 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-28 23:43:44,366 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8] total 15 [2021-10-28 23:43:44,366 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [418207777] [2021-10-28 23:43:44,366 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-10-28 23:43:44,366 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:43:44,367 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-10-28 23:43:44,367 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=151, Unknown=0, NotChecked=0, Total=210 [2021-10-28 23:43:44,367 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) [2021-10-28 23:43:46,733 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:43:46,733 INFO L93 Difference]: Finished difference Result 755 states and 807 transitions. [2021-10-28 23:43:46,735 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-10-28 23:43:46,736 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 755 states and 807 transitions. [2021-10-28 23:43:46,752 INFO L131 ngComponentsAnalysis]: Automaton has 7 accepting balls. 112 [2021-10-28 23:43:46,757 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 755 states to 744 states and 791 transitions. [2021-10-28 23:43:46,757 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 744 [2021-10-28 23:43:46,758 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 744 [2021-10-28 23:43:46,758 INFO L73 IsDeterministic]: Start isDeterministic. Operand 744 states and 791 transitions. [2021-10-28 23:43:46,760 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-28 23:43:46,760 INFO L681 BuchiCegarLoop]: Abstraction has 744 states and 791 transitions. [2021-10-28 23:43:46,760 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 744 states and 791 transitions. [2021-10-28 23:43:46,768 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 744 to 311. [2021-10-28 23:43:46,768 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) [2021-10-28 23:43:46,770 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 311 states to 311 states and 343 transitions. [2021-10-28 23:43:46,770 INFO L704 BuchiCegarLoop]: Abstraction has 311 states and 343 transitions. [2021-10-28 23:43:46,770 INFO L587 BuchiCegarLoop]: Abstraction has 311 states and 343 transitions. [2021-10-28 23:43:46,770 INFO L425 BuchiCegarLoop]: ======== Iteration 25============ [2021-10-28 23:43:46,770 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 311 states and 343 transitions. [2021-10-28 23:43:46,771 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 60 [2021-10-28 23:43:46,772 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 23:43:46,772 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 23:43:46,772 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] [2021-10-28 23:43:46,773 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:43:46,773 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 [2021-10-28 23:43:46,773 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 [2021-10-28 23:43:46,774 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:43:46,774 INFO L85 PathProgramCache]: Analyzing trace with hash -529922365, now seen corresponding path program 1 times [2021-10-28 23:43:46,774 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:43:46,774 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1954564763] [2021-10-28 23:43:46,774 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:43:46,774 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:43:46,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:43:46,924 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 38 proven. 3 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2021-10-28 23:43:46,925 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:43:46,925 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1954564763] [2021-10-28 23:43:46,925 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1954564763] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 23:43:46,925 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1516269463] [2021-10-28 23:43:46,925 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:43:46,925 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 23:43:46,925 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:43:46,927 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 23:43:46,954 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2021-10-28 23:43:47,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:43:47,207 INFO L263 TraceCheckSpWp]: Trace formula consists of 163 conjuncts, 7 conjunts are in the unsatisfiable core [2021-10-28 23:43:47,209 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:43:47,536 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 6 proven. 15 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2021-10-28 23:43:47,536 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1516269463] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 23:43:47,536 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-28 23:43:47,537 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 4] total 8 [2021-10-28 23:43:47,537 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [711579209] [2021-10-28 23:43:47,537 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-10-28 23:43:47,537 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:43:47,537 INFO L85 PathProgramCache]: Analyzing trace with hash -1233229496, now seen corresponding path program 1 times [2021-10-28 23:43:47,537 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:43:47,538 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [493218122] [2021-10-28 23:43:47,538 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:43:47,538 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:43:47,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:43:47,543 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 23:43:47,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:43:47,547 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 23:43:47,755 INFO L210 LassoAnalysis]: Preferences: [2021-10-28 23:43:47,755 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-28 23:43:47,755 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-28 23:43:47,755 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-28 23:43:47,755 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-10-28 23:43:47,755 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:43:47,755 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-28 23:43:47,756 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-28 23:43:47,756 INFO L133 ssoRankerPreferences]: Filename of dumped script: byte_add_1-1.i_Iteration25_Loop [2021-10-28 23:43:47,756 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-28 23:43:47,756 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-28 23:43:47,770 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:43:47,791 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:43:48,093 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-28 23:43:48,094 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-10-28 23:43:48,095 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:43:48,095 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:43:48,097 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:43:48,098 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2021-10-28 23:43:48,103 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-28 23:43:48,103 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 23:43:48,124 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-28 23:43:48,124 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: [] [2021-10-28 23:43:48,178 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Forceful destruction successful, exit code 0 [2021-10-28 23:43:48,178 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:43:48,178 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:43:48,179 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:43:48,184 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2021-10-28 23:43:48,184 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-28 23:43:48,185 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 23:43:48,287 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Forceful destruction successful, exit code 0 [2021-10-28 23:43:48,288 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:43:48,288 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:43:48,289 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:43:48,293 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2021-10-28 23:43:48,297 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-10-28 23:43:48,297 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 23:43:48,929 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-10-28 23:43:48,932 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Forceful destruction successful, exit code 0 [2021-10-28 23:43:48,933 INFO L210 LassoAnalysis]: Preferences: [2021-10-28 23:43:48,933 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-28 23:43:48,933 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-28 23:43:48,933 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-28 23:43:48,933 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-28 23:43:48,933 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:43:48,933 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-28 23:43:48,933 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-28 23:43:48,933 INFO L133 ssoRankerPreferences]: Filename of dumped script: byte_add_1-1.i_Iteration25_Loop [2021-10-28 23:43:48,933 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-28 23:43:48,933 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-28 23:43:48,934 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:43:48,945 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:43:49,333 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-28 23:43:49,336 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-10-28 23:43:49,337 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:43:49,338 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:43:49,345 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:43:49,346 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2021-10-28 23:43:49,348 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:43:49,356 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:43:49,356 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:43:49,356 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:43:49,357 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:43:49,357 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:43:49,369 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 23:43:49,369 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:43:49,392 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:43:49,429 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Forceful destruction successful, exit code 0 [2021-10-28 23:43:49,430 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:43:49,430 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:43:49,444 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:43:49,450 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:43:49,464 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:43:49,464 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:43:49,464 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:43:49,464 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:43:49,464 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:43:49,469 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 23:43:49,469 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:43:49,471 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2021-10-28 23:43:49,487 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:43:49,520 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Forceful destruction successful, exit code 0 [2021-10-28 23:43:49,521 INFO L490 LassoAnalysis]: Using template '2-nested'. [2021-10-28 23:43:49,521 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:43:49,521 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:43:49,522 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:43:49,523 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2021-10-28 23:43:49,528 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 [2021-10-28 23:43:49,537 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:43:49,537 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:43:49,537 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:43:49,537 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:43:49,537 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2021-10-28 23:43:49,540 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2021-10-28 23:43:49,540 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:43:49,555 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:43:49,593 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Forceful destruction successful, exit code 0 [2021-10-28 23:43:49,593 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:43:49,593 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:43:49,595 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:43:49,599 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process [2021-10-28 23:43:49,599 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:43:49,606 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:43:49,607 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:43:49,607 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:43:49,607 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:43:49,607 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2021-10-28 23:43:49,610 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2021-10-28 23:43:49,611 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:43:49,620 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:43:49,642 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Forceful destruction successful, exit code 0 [2021-10-28 23:43:49,643 INFO L490 LassoAnalysis]: Using template '3-nested'. [2021-10-28 23:43:49,643 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:43:49,643 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:43:49,644 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:43:49,654 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Waiting until timeout for monitored process [2021-10-28 23:43:49,655 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:43:49,663 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:43:49,663 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:43:49,663 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:43:49,663 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:43:49,663 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2021-10-28 23:43:49,666 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-10-28 23:43:49,666 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:43:49,670 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:43:49,692 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Forceful destruction successful, exit code 0 [2021-10-28 23:43:49,693 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:43:49,693 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:43:49,694 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:43:49,695 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Waiting until timeout for monitored process [2021-10-28 23:43:49,695 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:43:49,703 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:43:49,703 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:43:49,703 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:43:49,703 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:43:49,703 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2021-10-28 23:43:49,718 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-10-28 23:43:49,718 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:43:49,735 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:43:49,755 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Forceful destruction successful, exit code 0 [2021-10-28 23:43:49,755 INFO L490 LassoAnalysis]: Using template '4-nested'. [2021-10-28 23:43:49,755 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:43:49,755 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:43:49,756 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:43:49,761 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Waiting until timeout for monitored process [2021-10-28 23:43:49,761 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:43:49,768 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:43:49,769 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:43:49,769 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:43:49,769 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:43:49,769 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. [2021-10-28 23:43:49,771 INFO L401 nArgumentSynthesizer]: We have 5 Motzkin's Theorem applications. [2021-10-28 23:43:49,771 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:43:49,775 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:43:49,798 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Forceful destruction successful, exit code 0 [2021-10-28 23:43:49,798 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:43:49,798 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:43:49,799 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:43:49,800 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Waiting until timeout for monitored process [2021-10-28 23:43:49,800 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:43:49,809 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:43:49,809 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:43:49,809 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:43:49,809 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:43:49,809 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. [2021-10-28 23:43:49,821 INFO L401 nArgumentSynthesizer]: We have 5 Motzkin's Theorem applications. [2021-10-28 23:43:49,821 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:43:49,843 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:43:49,868 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Forceful destruction successful, exit code 0 [2021-10-28 23:43:49,868 INFO L490 LassoAnalysis]: Using template '2-phase'. [2021-10-28 23:43:49,868 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:43:49,868 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:43:49,869 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:43:49,870 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Waiting until timeout for monitored process [2021-10-28 23:43:49,870 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:43:49,877 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-28 23:43:49,878 INFO L338 nArgumentSynthesizer]: Template has degree 1. [2021-10-28 23:43:49,878 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:43:49,878 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:43:49,878 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:43:49,878 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2021-10-28 23:43:49,887 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2021-10-28 23:43:49,887 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:43:49,891 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:43:49,911 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Forceful destruction successful, exit code 0 [2021-10-28 23:43:49,911 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:43:49,911 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:43:49,912 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:43:49,920 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Waiting until timeout for monitored process [2021-10-28 23:43:49,924 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:43:49,931 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-28 23:43:49,931 INFO L338 nArgumentSynthesizer]: Template has degree 1. [2021-10-28 23:43:49,931 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:43:49,932 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:43:49,932 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:43:49,932 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2021-10-28 23:43:49,953 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2021-10-28 23:43:49,953 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:43:49,961 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:43:49,993 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Forceful destruction successful, exit code 0 [2021-10-28 23:43:49,993 INFO L490 LassoAnalysis]: Using template '3-phase'. [2021-10-28 23:43:49,993 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:43:49,993 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:43:49,995 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:43:50,023 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:43:50,032 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-28 23:43:50,032 INFO L338 nArgumentSynthesizer]: Template has degree 2. [2021-10-28 23:43:50,033 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:43:50,033 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:43:50,033 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:43:50,033 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2021-10-28 23:43:50,037 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-10-28 23:43:50,037 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:43:50,045 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Waiting until timeout for monitored process [2021-10-28 23:43:50,051 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:43:50,084 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Forceful destruction successful, exit code 0 [2021-10-28 23:43:50,084 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:43:50,084 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:43:50,088 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:43:50,099 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:43:50,108 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-28 23:43:50,108 INFO L338 nArgumentSynthesizer]: Template has degree 2. [2021-10-28 23:43:50,108 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:43:50,109 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:43:50,109 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:43:50,109 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2021-10-28 23:43:50,117 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-10-28 23:43:50,117 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:43:50,123 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Waiting until timeout for monitored process [2021-10-28 23:43:50,135 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:43:50,166 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Forceful destruction successful, exit code 0 [2021-10-28 23:43:50,166 INFO L490 LassoAnalysis]: Using template '4-phase'. [2021-10-28 23:43:50,166 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:43:50,166 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:43:50,167 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:43:50,172 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:43:50,182 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-28 23:43:50,182 INFO L338 nArgumentSynthesizer]: Template has degree 3. [2021-10-28 23:43:50,182 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:43:50,182 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:43:50,182 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:43:50,182 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. [2021-10-28 23:43:50,186 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Waiting until timeout for monitored process [2021-10-28 23:43:50,188 INFO L401 nArgumentSynthesizer]: We have 5 Motzkin's Theorem applications. [2021-10-28 23:43:50,188 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:43:50,203 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:43:50,227 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Forceful destruction successful, exit code 0 [2021-10-28 23:43:50,228 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:43:50,228 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:43:50,228 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:43:50,229 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Waiting until timeout for monitored process [2021-10-28 23:43:50,230 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:43:50,237 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-28 23:43:50,237 INFO L338 nArgumentSynthesizer]: Template has degree 3. [2021-10-28 23:43:50,237 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:43:50,238 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:43:50,238 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:43:50,238 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. [2021-10-28 23:43:50,247 INFO L401 nArgumentSynthesizer]: We have 5 Motzkin's Theorem applications. [2021-10-28 23:43:50,247 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:43:50,271 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:43:50,308 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Forceful destruction successful, exit code 0 [2021-10-28 23:43:50,308 INFO L490 LassoAnalysis]: Using template '2-lex'. [2021-10-28 23:43:50,308 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:43:50,308 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:43:50,309 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:43:50,316 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:43:50,326 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-28 23:43:50,326 INFO L338 nArgumentSynthesizer]: Template has degree 1. [2021-10-28 23:43:50,326 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:43:50,326 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:43:50,326 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:43:50,326 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2021-10-28 23:43:50,329 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-10-28 23:43:50,329 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:43:50,335 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Waiting until timeout for monitored process [2021-10-28 23:43:50,351 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:43:50,387 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Forceful destruction successful, exit code 0 [2021-10-28 23:43:50,388 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:43:50,388 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:43:50,389 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:43:50,392 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:43:50,401 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-28 23:43:50,401 INFO L338 nArgumentSynthesizer]: Template has degree 1. [2021-10-28 23:43:50,401 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:43:50,401 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:43:50,401 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:43:50,401 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2021-10-28 23:43:50,406 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-10-28 23:43:50,407 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:43:50,416 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Waiting until timeout for monitored process [2021-10-28 23:43:50,419 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:43:50,456 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Forceful destruction successful, exit code 0 [2021-10-28 23:43:50,456 INFO L490 LassoAnalysis]: Using template '3-lex'. [2021-10-28 23:43:50,456 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:43:50,456 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:43:50,457 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:43:50,459 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:43:50,469 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-28 23:43:50,469 INFO L338 nArgumentSynthesizer]: Template has degree 3. [2021-10-28 23:43:50,469 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:43:50,469 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:43:50,469 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:43:50,469 INFO L205 nArgumentSynthesizer]: 6 template conjuncts. [2021-10-28 23:43:50,473 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 23:43:50,473 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:43:50,483 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Waiting until timeout for monitored process [2021-10-28 23:43:50,487 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:43:50,522 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Forceful destruction successful, exit code 0 [2021-10-28 23:43:50,522 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:43:50,522 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:43:50,523 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:43:50,525 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:43:50,536 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-28 23:43:50,536 INFO L338 nArgumentSynthesizer]: Template has degree 3. [2021-10-28 23:43:50,536 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:43:50,536 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:43:50,536 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:43:50,536 INFO L205 nArgumentSynthesizer]: 6 template conjuncts. [2021-10-28 23:43:50,545 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 23:43:50,545 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:43:50,549 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Waiting until timeout for monitored process [2021-10-28 23:43:50,571 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:43:50,606 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Forceful destruction successful, exit code 0 [2021-10-28 23:43:50,606 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:43:50,607 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-10-28 23:43:50,607 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-10-28 23:43:50,607 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) [2021-10-28 23:43:51,140 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:43:51,141 INFO L93 Difference]: Finished difference Result 445 states and 473 transitions. [2021-10-28 23:43:51,141 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-28 23:43:51,141 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 445 states and 473 transitions. [2021-10-28 23:43:51,144 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 94 [2021-10-28 23:43:51,146 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 445 states to 390 states and 417 transitions. [2021-10-28 23:43:51,147 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 390 [2021-10-28 23:43:51,147 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 390 [2021-10-28 23:43:51,147 INFO L73 IsDeterministic]: Start isDeterministic. Operand 390 states and 417 transitions. [2021-10-28 23:43:51,148 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-28 23:43:51,148 INFO L681 BuchiCegarLoop]: Abstraction has 390 states and 417 transitions. [2021-10-28 23:43:51,148 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 390 states and 417 transitions. [2021-10-28 23:43:51,154 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 390 to 327. [2021-10-28 23:43:51,155 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) [2021-10-28 23:43:51,156 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 327 states to 327 states and 354 transitions. [2021-10-28 23:43:51,156 INFO L704 BuchiCegarLoop]: Abstraction has 327 states and 354 transitions. [2021-10-28 23:43:51,156 INFO L587 BuchiCegarLoop]: Abstraction has 327 states and 354 transitions. [2021-10-28 23:43:51,156 INFO L425 BuchiCegarLoop]: ======== Iteration 26============ [2021-10-28 23:43:51,156 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 327 states and 354 transitions. [2021-10-28 23:43:51,158 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 77 [2021-10-28 23:43:51,158 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 23:43:51,158 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 23:43:51,158 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] [2021-10-28 23:43:51,159 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:43:51,159 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 [2021-10-28 23:43:51,159 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 [2021-10-28 23:43:51,159 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:43:51,160 INFO L85 PathProgramCache]: Analyzing trace with hash -267040966, now seen corresponding path program 1 times [2021-10-28 23:43:51,160 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:43:51,160 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [576677759] [2021-10-28 23:43:51,160 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:43:51,160 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:43:51,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:43:51,362 INFO L134 CoverageAnalysis]: Checked inductivity of 75 backedges. 45 proven. 7 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2021-10-28 23:43:51,362 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:43:51,362 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [576677759] [2021-10-28 23:43:51,363 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [576677759] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 23:43:51,363 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1026220103] [2021-10-28 23:43:51,363 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:43:51,363 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 23:43:51,363 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:43:51,368 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 23:43:51,384 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Waiting until timeout for monitored process [2021-10-28 23:43:51,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:43:51,877 INFO L263 TraceCheckSpWp]: Trace formula consists of 174 conjuncts, 29 conjunts are in the unsatisfiable core [2021-10-28 23:43:51,878 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:43:52,445 INFO L134 CoverageAnalysis]: Checked inductivity of 75 backedges. 50 proven. 4 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2021-10-28 23:43:52,445 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1026220103] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 23:43:52,445 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-28 23:43:52,445 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 6] total 11 [2021-10-28 23:43:52,445 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2087045903] [2021-10-28 23:43:52,445 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-10-28 23:43:52,446 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:43:52,446 INFO L85 PathProgramCache]: Analyzing trace with hash 672830572, now seen corresponding path program 1 times [2021-10-28 23:43:52,446 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:43:52,446 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [483300268] [2021-10-28 23:43:52,446 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:43:52,446 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:43:52,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:43:52,470 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 23:43:52,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:43:52,474 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 23:43:52,670 INFO L210 LassoAnalysis]: Preferences: [2021-10-28 23:43:52,670 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-28 23:43:52,670 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-28 23:43:52,671 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-28 23:43:52,671 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-10-28 23:43:52,671 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:43:52,671 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-28 23:43:52,671 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-28 23:43:52,671 INFO L133 ssoRankerPreferences]: Filename of dumped script: byte_add_1-1.i_Iteration26_Loop [2021-10-28 23:43:52,671 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-28 23:43:52,671 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-28 23:43:52,672 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:43:52,683 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:43:52,971 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-28 23:43:52,972 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-10-28 23:43:52,972 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:43:52,972 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:43:52,973 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:43:52,974 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-28 23:43:52,974 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 23:43:52,984 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Waiting until timeout for monitored process [2021-10-28 23:43:52,991 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-28 23:43:52,992 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: [] [2021-10-28 23:43:53,010 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Ended with exit code 0 [2021-10-28 23:43:53,011 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:43:53,011 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:43:53,011 INFO L229 MonitoredProcess]: Starting monitored process 34 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:43:53,012 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Waiting until timeout for monitored process [2021-10-28 23:43:53,013 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-28 23:43:53,013 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 23:43:53,060 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Forceful destruction successful, exit code 0 [2021-10-28 23:43:53,061 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:43:53,061 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:43:53,061 INFO L229 MonitoredProcess]: Starting monitored process 35 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:43:53,062 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Waiting until timeout for monitored process [2021-10-28 23:43:53,062 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-10-28 23:43:53,063 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 23:43:54,829 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-10-28 23:43:54,835 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Forceful destruction successful, exit code 0 [2021-10-28 23:43:54,835 INFO L210 LassoAnalysis]: Preferences: [2021-10-28 23:43:54,836 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-28 23:43:54,836 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-28 23:43:54,836 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-28 23:43:54,836 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-28 23:43:54,836 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:43:54,836 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-28 23:43:54,836 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-28 23:43:54,836 INFO L133 ssoRankerPreferences]: Filename of dumped script: byte_add_1-1.i_Iteration26_Loop [2021-10-28 23:43:54,836 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-28 23:43:54,836 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-28 23:43:54,837 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:43:54,857 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:43:55,155 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-28 23:43:55,155 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-10-28 23:43:55,155 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:43:55,156 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:43:55,157 INFO L229 MonitoredProcess]: Starting monitored process 36 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:43:55,158 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Waiting until timeout for monitored process [2021-10-28 23:43:55,160 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:43:55,167 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:43:55,167 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:43:55,167 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:43:55,167 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:43:55,167 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:43:55,168 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 23:43:55,168 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:43:55,170 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:43:55,189 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Forceful destruction successful, exit code 0 [2021-10-28 23:43:55,189 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:43:55,189 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:43:55,190 INFO L229 MonitoredProcess]: Starting monitored process 37 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:43:55,191 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (37)] Waiting until timeout for monitored process [2021-10-28 23:43:55,192 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 [2021-10-28 23:43:55,199 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:43:55,200 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:43:55,200 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:43:55,200 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:43:55,200 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:43:55,202 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 23:43:55,202 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:43:55,205 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:43:55,224 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (37)] Ended with exit code 0 [2021-10-28 23:43:55,224 INFO L490 LassoAnalysis]: Using template '2-nested'. [2021-10-28 23:43:55,224 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:43:55,224 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:43:55,225 INFO L229 MonitoredProcess]: Starting monitored process 38 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:43:55,226 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (38)] Waiting until timeout for monitored process [2021-10-28 23:43:55,227 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:43:55,233 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:43:55,234 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:43:55,234 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:43:55,234 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:43:55,234 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2021-10-28 23:43:55,235 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2021-10-28 23:43:55,235 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:43:55,238 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:43:55,256 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (38)] Forceful destruction successful, exit code 0 [2021-10-28 23:43:55,257 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:43:55,257 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:43:55,258 INFO L229 MonitoredProcess]: Starting monitored process 39 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:43:55,261 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (39)] Waiting until timeout for monitored process [2021-10-28 23:43:55,261 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:43:55,268 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:43:55,268 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:43:55,269 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:43:55,269 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:43:55,269 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2021-10-28 23:43:55,272 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2021-10-28 23:43:55,272 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:43:55,276 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:43:55,294 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (39)] Ended with exit code 0 [2021-10-28 23:43:55,294 INFO L490 LassoAnalysis]: Using template '3-nested'. [2021-10-28 23:43:55,295 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:43:55,295 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:43:55,296 INFO L229 MonitoredProcess]: Starting monitored process 40 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:43:55,298 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (40)] Waiting until timeout for monitored process [2021-10-28 23:43:55,298 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:43:55,305 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:43:55,305 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:43:55,305 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:43:55,305 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:43:55,305 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2021-10-28 23:43:55,307 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-10-28 23:43:55,307 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:43:55,318 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:43:55,354 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (40)] Ended with exit code 0 [2021-10-28 23:43:55,355 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:43:55,355 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:43:55,356 INFO L229 MonitoredProcess]: Starting monitored process 41 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:43:55,362 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (41)] Waiting until timeout for monitored process [2021-10-28 23:43:55,363 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:43:55,383 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:43:55,384 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:43:55,384 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:43:55,384 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:43:55,384 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2021-10-28 23:43:55,390 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-10-28 23:43:55,390 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:43:55,407 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:43:55,439 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (41)] Forceful destruction successful, exit code 0 [2021-10-28 23:43:55,439 INFO L490 LassoAnalysis]: Using template '4-nested'. [2021-10-28 23:43:55,439 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:43:55,439 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:43:55,444 INFO L229 MonitoredProcess]: Starting monitored process 42 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:43:55,446 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:43:55,455 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:43:55,455 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:43:55,455 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:43:55,456 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:43:55,456 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. [2021-10-28 23:43:55,459 INFO L401 nArgumentSynthesizer]: We have 5 Motzkin's Theorem applications. [2021-10-28 23:43:55,460 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:43:55,465 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (42)] Waiting until timeout for monitored process [2021-10-28 23:43:55,479 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:43:55,509 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (42)] Ended with exit code 0 [2021-10-28 23:43:55,509 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:43:55,510 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:43:55,510 INFO L229 MonitoredProcess]: Starting monitored process 43 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:43:55,511 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (43)] Waiting until timeout for monitored process [2021-10-28 23:43:55,512 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:43:55,521 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:43:55,521 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:43:55,522 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:43:55,522 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:43:55,522 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. [2021-10-28 23:43:55,527 INFO L401 nArgumentSynthesizer]: We have 5 Motzkin's Theorem applications. [2021-10-28 23:43:55,528 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:43:55,540 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:43:55,563 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (43)] Forceful destruction successful, exit code 0 [2021-10-28 23:43:55,563 INFO L490 LassoAnalysis]: Using template '2-phase'. [2021-10-28 23:43:55,563 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:43:55,563 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:43:55,564 INFO L229 MonitoredProcess]: Starting monitored process 44 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:43:55,564 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (44)] Waiting until timeout for monitored process [2021-10-28 23:43:55,565 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:43:55,573 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-28 23:43:55,573 INFO L338 nArgumentSynthesizer]: Template has degree 1. [2021-10-28 23:43:55,573 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:43:55,573 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:43:55,573 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:43:55,573 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2021-10-28 23:43:55,575 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2021-10-28 23:43:55,575 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:43:55,579 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:43:55,597 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (44)] Forceful destruction successful, exit code 0 [2021-10-28 23:43:55,598 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:43:55,598 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:43:55,598 INFO L229 MonitoredProcess]: Starting monitored process 45 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:43:55,599 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (45)] Waiting until timeout for monitored process [2021-10-28 23:43:55,600 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:43:55,607 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-28 23:43:55,607 INFO L338 nArgumentSynthesizer]: Template has degree 1. [2021-10-28 23:43:55,607 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:43:55,607 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:43:55,607 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:43:55,607 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2021-10-28 23:43:55,610 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2021-10-28 23:43:55,610 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:43:55,617 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:43:55,636 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (45)] Forceful destruction successful, exit code 0 [2021-10-28 23:43:55,636 INFO L490 LassoAnalysis]: Using template '3-phase'. [2021-10-28 23:43:55,637 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:43:55,637 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:43:55,638 INFO L229 MonitoredProcess]: Starting monitored process 46 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:43:55,641 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (46)] Waiting until timeout for monitored process [2021-10-28 23:43:55,641 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:43:55,648 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-28 23:43:55,648 INFO L338 nArgumentSynthesizer]: Template has degree 2. [2021-10-28 23:43:55,648 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:43:55,649 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:43:55,649 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:43:55,649 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2021-10-28 23:43:55,652 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-10-28 23:43:55,652 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:43:55,657 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:43:55,676 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (46)] Forceful destruction successful, exit code 0 [2021-10-28 23:43:55,676 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:43:55,677 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:43:55,677 INFO L229 MonitoredProcess]: Starting monitored process 47 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:43:55,678 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (47)] Waiting until timeout for monitored process [2021-10-28 23:43:55,678 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:43:55,686 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-28 23:43:55,686 INFO L338 nArgumentSynthesizer]: Template has degree 2. [2021-10-28 23:43:55,686 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:43:55,686 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:43:55,686 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:43:55,686 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2021-10-28 23:43:55,690 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-10-28 23:43:55,690 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:43:55,700 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:43:55,720 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (47)] Ended with exit code 0 [2021-10-28 23:43:55,720 INFO L490 LassoAnalysis]: Using template '4-phase'. [2021-10-28 23:43:55,720 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:43:55,720 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:43:55,721 INFO L229 MonitoredProcess]: Starting monitored process 48 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:43:55,722 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (48)] Waiting until timeout for monitored process [2021-10-28 23:43:55,722 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:43:55,730 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-28 23:43:55,730 INFO L338 nArgumentSynthesizer]: Template has degree 3. [2021-10-28 23:43:55,730 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:43:55,730 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:43:55,730 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:43:55,730 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. [2021-10-28 23:43:55,734 INFO L401 nArgumentSynthesizer]: We have 5 Motzkin's Theorem applications. [2021-10-28 23:43:55,734 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:43:55,744 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:43:55,763 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (48)] Forceful destruction successful, exit code 0 [2021-10-28 23:43:55,763 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:43:55,764 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:43:55,764 INFO L229 MonitoredProcess]: Starting monitored process 49 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:43:55,765 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (49)] Waiting until timeout for monitored process [2021-10-28 23:43:55,766 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:43:55,773 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-28 23:43:55,773 INFO L338 nArgumentSynthesizer]: Template has degree 3. [2021-10-28 23:43:55,774 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:43:55,774 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:43:55,774 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:43:55,774 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. [2021-10-28 23:43:55,784 INFO L401 nArgumentSynthesizer]: We have 5 Motzkin's Theorem applications. [2021-10-28 23:43:55,784 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:43:55,815 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:43:55,847 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (49)] Forceful destruction successful, exit code 0 [2021-10-28 23:43:55,848 INFO L490 LassoAnalysis]: Using template '2-lex'. [2021-10-28 23:43:55,848 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:43:55,848 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:43:55,852 INFO L229 MonitoredProcess]: Starting monitored process 50 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:43:55,856 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:43:55,865 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-28 23:43:55,865 INFO L338 nArgumentSynthesizer]: Template has degree 1. [2021-10-28 23:43:55,865 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:43:55,865 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:43:55,865 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:43:55,865 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2021-10-28 23:43:55,868 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-10-28 23:43:55,868 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:43:55,873 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (50)] Waiting until timeout for monitored process [2021-10-28 23:43:55,879 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:43:55,911 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (50)] Forceful destruction successful, exit code 0 [2021-10-28 23:43:55,911 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:43:55,911 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:43:55,912 INFO L229 MonitoredProcess]: Starting monitored process 51 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:43:55,916 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:43:55,925 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-28 23:43:55,925 INFO L338 nArgumentSynthesizer]: Template has degree 1. [2021-10-28 23:43:55,926 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:43:55,926 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:43:55,926 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:43:55,926 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2021-10-28 23:43:55,931 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-10-28 23:43:55,931 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:43:55,937 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (51)] Waiting until timeout for monitored process [2021-10-28 23:43:55,943 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:43:55,980 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (51)] Forceful destruction successful, exit code 0 [2021-10-28 23:43:55,980 INFO L490 LassoAnalysis]: Using template '3-lex'. [2021-10-28 23:43:55,980 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:43:55,980 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:43:55,981 INFO L229 MonitoredProcess]: Starting monitored process 52 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:43:55,983 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:43:55,992 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-28 23:43:55,992 INFO L338 nArgumentSynthesizer]: Template has degree 3. [2021-10-28 23:43:55,992 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:43:55,993 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:43:55,993 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:43:55,993 INFO L205 nArgumentSynthesizer]: 6 template conjuncts. [2021-10-28 23:43:55,997 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 23:43:55,997 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:43:56,003 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (52)] Waiting until timeout for monitored process [2021-10-28 23:43:56,019 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:43:56,051 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (52)] Forceful destruction successful, exit code 0 [2021-10-28 23:43:56,051 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:43:56,051 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:43:56,052 INFO L229 MonitoredProcess]: Starting monitored process 53 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:43:56,054 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:43:56,063 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-28 23:43:56,063 INFO L338 nArgumentSynthesizer]: Template has degree 3. [2021-10-28 23:43:56,063 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:43:56,063 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:43:56,064 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:43:56,064 INFO L205 nArgumentSynthesizer]: 6 template conjuncts. [2021-10-28 23:43:56,064 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (53)] Waiting until timeout for monitored process [2021-10-28 23:43:56,071 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 23:43:56,071 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:43:56,091 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:43:56,123 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (53)] Forceful destruction successful, exit code 0 [2021-10-28 23:43:56,123 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:43:56,123 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-10-28 23:43:56,124 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2021-10-28 23:43:56,124 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) [2021-10-28 23:43:58,077 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:43:58,077 INFO L93 Difference]: Finished difference Result 587 states and 628 transitions. [2021-10-28 23:43:58,078 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-10-28 23:43:58,078 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 587 states and 628 transitions. [2021-10-28 23:43:58,080 INFO L131 ngComponentsAnalysis]: Automaton has 8 accepting balls. 124 [2021-10-28 23:43:58,084 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 587 states to 587 states and 628 transitions. [2021-10-28 23:43:58,084 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 587 [2021-10-28 23:43:58,085 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 587 [2021-10-28 23:43:58,085 INFO L73 IsDeterministic]: Start isDeterministic. Operand 587 states and 628 transitions. [2021-10-28 23:43:58,085 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-28 23:43:58,086 INFO L681 BuchiCegarLoop]: Abstraction has 587 states and 628 transitions. [2021-10-28 23:43:58,086 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 587 states and 628 transitions. [2021-10-28 23:43:58,093 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 587 to 313. [2021-10-28 23:43:58,095 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) [2021-10-28 23:43:58,096 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 313 states to 313 states and 337 transitions. [2021-10-28 23:43:58,096 INFO L704 BuchiCegarLoop]: Abstraction has 313 states and 337 transitions. [2021-10-28 23:43:58,096 INFO L587 BuchiCegarLoop]: Abstraction has 313 states and 337 transitions. [2021-10-28 23:43:58,096 INFO L425 BuchiCegarLoop]: ======== Iteration 27============ [2021-10-28 23:43:58,096 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 313 states and 337 transitions. [2021-10-28 23:43:58,097 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 77 [2021-10-28 23:43:58,097 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 23:43:58,097 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 23:43:58,098 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] [2021-10-28 23:43:58,098 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:43:58,098 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 [2021-10-28 23:43:58,099 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 [2021-10-28 23:43:58,099 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:43:58,099 INFO L85 PathProgramCache]: Analyzing trace with hash 1728940926, now seen corresponding path program 1 times [2021-10-28 23:43:58,099 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:43:58,099 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [93800692] [2021-10-28 23:43:58,099 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:43:58,100 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:43:58,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:43:58,128 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 23:43:58,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:43:58,170 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 23:43:58,171 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:43:58,171 INFO L85 PathProgramCache]: Analyzing trace with hash 672830572, now seen corresponding path program 2 times [2021-10-28 23:43:58,171 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:43:58,171 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [76907179] [2021-10-28 23:43:58,171 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:43:58,172 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:43:58,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:43:58,178 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 23:43:58,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:43:58,182 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 23:43:58,182 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:43:58,182 INFO L85 PathProgramCache]: Analyzing trace with hash 334650383, now seen corresponding path program 2 times [2021-10-28 23:43:58,182 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:43:58,183 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1513867374] [2021-10-28 23:43:58,183 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:43:58,183 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:43:58,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:43:58,447 INFO L134 CoverageAnalysis]: Checked inductivity of 126 backedges. 40 proven. 86 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:43:58,447 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:43:58,447 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1513867374] [2021-10-28 23:43:58,447 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1513867374] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 23:43:58,448 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1504239522] [2021-10-28 23:43:58,448 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-28 23:43:58,448 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 23:43:58,448 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:43:58,452 INFO L229 MonitoredProcess]: Starting monitored process 54 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 23:43:58,470 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (54)] Waiting until timeout for monitored process [2021-10-28 23:43:58,785 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2021-10-28 23:43:58,785 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-28 23:43:58,786 INFO L263 TraceCheckSpWp]: Trace formula consists of 90 conjuncts, 7 conjunts are in the unsatisfiable core [2021-10-28 23:43:58,787 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:43:59,681 INFO L134 CoverageAnalysis]: Checked inductivity of 126 backedges. 24 proven. 16 refuted. 0 times theorem prover too weak. 86 trivial. 0 not checked. [2021-10-28 23:43:59,681 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1504239522] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 23:43:59,681 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-28 23:43:59,681 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 7] total 13 [2021-10-28 23:43:59,682 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1535395097] [2021-10-28 23:43:59,926 INFO L210 LassoAnalysis]: Preferences: [2021-10-28 23:43:59,926 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-28 23:43:59,926 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-28 23:43:59,926 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-28 23:43:59,926 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-10-28 23:43:59,926 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:43:59,926 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-28 23:43:59,926 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-28 23:43:59,926 INFO L133 ssoRankerPreferences]: Filename of dumped script: byte_add_1-1.i_Iteration27_Loop [2021-10-28 23:43:59,927 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-28 23:43:59,927 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-28 23:43:59,927 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:43:59,966 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:44:00,378 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-28 23:44:00,378 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-10-28 23:44:00,378 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:44:00,378 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:44:00,379 INFO L229 MonitoredProcess]: Starting monitored process 55 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:44:00,380 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-28 23:44:00,380 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 23:44:00,381 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (55)] Waiting until timeout for monitored process [2021-10-28 23:44:00,427 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (55)] Forceful destruction successful, exit code 0 [2021-10-28 23:44:00,431 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:44:00,431 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:44:00,432 INFO L229 MonitoredProcess]: Starting monitored process 56 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:44:00,433 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (56)] Waiting until timeout for monitored process [2021-10-28 23:44:00,433 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-10-28 23:44:00,433 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 23:44:01,160 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-10-28 23:44:01,163 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (56)] Ended with exit code 0 [2021-10-28 23:44:01,164 INFO L210 LassoAnalysis]: Preferences: [2021-10-28 23:44:01,164 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-28 23:44:01,164 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-28 23:44:01,164 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-28 23:44:01,164 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-28 23:44:01,164 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:44:01,164 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-28 23:44:01,164 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-28 23:44:01,164 INFO L133 ssoRankerPreferences]: Filename of dumped script: byte_add_1-1.i_Iteration27_Loop [2021-10-28 23:44:01,164 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-28 23:44:01,164 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-28 23:44:01,165 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:44:01,193 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:44:01,469 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-28 23:44:01,469 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-10-28 23:44:01,469 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:44:01,469 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:44:01,470 INFO L229 MonitoredProcess]: Starting monitored process 57 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:44:01,471 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (57)] Waiting until timeout for monitored process [2021-10-28 23:44:01,471 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:44:01,479 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:44:01,479 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:44:01,479 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:44:01,479 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:44:01,480 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:44:01,481 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 23:44:01,481 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:44:01,484 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:44:01,503 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (57)] Ended with exit code 0 [2021-10-28 23:44:01,503 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:44:01,503 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:44:01,504 INFO L229 MonitoredProcess]: Starting monitored process 58 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:44:01,505 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (58)] Waiting until timeout for monitored process [2021-10-28 23:44:01,505 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:44:01,514 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:44:01,515 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:44:01,515 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:44:01,515 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:44:01,515 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:44:01,516 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 23:44:01,516 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:44:01,519 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:44:01,538 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (58)] Ended with exit code 0 [2021-10-28 23:44:01,538 INFO L490 LassoAnalysis]: Using template '2-nested'. [2021-10-28 23:44:01,538 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:44:01,539 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:44:01,539 INFO L229 MonitoredProcess]: Starting monitored process 59 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:44:01,540 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (59)] Waiting until timeout for monitored process [2021-10-28 23:44:01,540 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:44:01,548 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:44:01,548 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:44:01,548 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:44:01,548 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:44:01,548 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2021-10-28 23:44:01,551 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2021-10-28 23:44:01,551 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:44:01,555 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:44:01,574 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (59)] Forceful destruction successful, exit code 0 [2021-10-28 23:44:01,574 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:44:01,574 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:44:01,575 INFO L229 MonitoredProcess]: Starting monitored process 60 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:44:01,576 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (60)] Waiting until timeout for monitored process [2021-10-28 23:44:01,577 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 [2021-10-28 23:44:01,584 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:44:01,584 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:44:01,584 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:44:01,584 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:44:01,584 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2021-10-28 23:44:01,586 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2021-10-28 23:44:01,586 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:44:01,588 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:44:01,607 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (60)] Ended with exit code 0 [2021-10-28 23:44:01,608 INFO L490 LassoAnalysis]: Using template '3-nested'. [2021-10-28 23:44:01,608 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:44:01,608 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:44:01,608 INFO L229 MonitoredProcess]: Starting monitored process 61 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:44:01,610 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (61)] Waiting until timeout for monitored process [2021-10-28 23:44:01,610 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:44:01,618 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:44:01,618 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:44:01,618 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:44:01,619 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:44:01,619 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2021-10-28 23:44:01,622 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-10-28 23:44:01,622 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:44:01,627 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:44:01,646 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (61)] Forceful destruction successful, exit code 0 [2021-10-28 23:44:01,647 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:44:01,647 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:44:01,648 INFO L229 MonitoredProcess]: Starting monitored process 62 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:44:01,648 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (62)] Waiting until timeout for monitored process [2021-10-28 23:44:01,649 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:44:01,656 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:44:01,656 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:44:01,656 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:44:01,656 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:44:01,656 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2021-10-28 23:44:01,658 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-10-28 23:44:01,658 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:44:01,661 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:44:01,680 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (62)] Ended with exit code 0 [2021-10-28 23:44:01,681 INFO L490 LassoAnalysis]: Using template '4-nested'. [2021-10-28 23:44:01,681 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:44:01,681 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:44:01,682 INFO L229 MonitoredProcess]: Starting monitored process 63 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:44:01,683 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (63)] Waiting until timeout for monitored process [2021-10-28 23:44:01,683 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:44:01,691 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:44:01,691 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:44:01,691 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:44:01,691 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:44:01,691 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. [2021-10-28 23:44:01,695 INFO L401 nArgumentSynthesizer]: We have 5 Motzkin's Theorem applications. [2021-10-28 23:44:01,695 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:44:01,701 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:44:01,721 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (63)] Forceful destruction successful, exit code 0 [2021-10-28 23:44:01,721 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:44:01,721 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:44:01,722 INFO L229 MonitoredProcess]: Starting monitored process 64 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:44:01,722 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (64)] Waiting until timeout for monitored process [2021-10-28 23:44:01,723 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:44:01,731 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:44:01,731 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:44:01,731 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:44:01,731 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:44:01,731 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. [2021-10-28 23:44:01,733 INFO L401 nArgumentSynthesizer]: We have 5 Motzkin's Theorem applications. [2021-10-28 23:44:01,733 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:44:01,737 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:44:01,757 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (64)] Ended with exit code 0 [2021-10-28 23:44:01,757 INFO L490 LassoAnalysis]: Using template '2-phase'. [2021-10-28 23:44:01,757 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:44:01,757 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:44:01,758 INFO L229 MonitoredProcess]: Starting monitored process 65 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:44:01,759 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (65)] Waiting until timeout for monitored process [2021-10-28 23:44:01,759 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:44:01,766 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-28 23:44:01,766 INFO L338 nArgumentSynthesizer]: Template has degree 1. [2021-10-28 23:44:01,766 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:44:01,766 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:44:01,766 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:44:01,767 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2021-10-28 23:44:01,770 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2021-10-28 23:44:01,770 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:44:01,795 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:44:01,831 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (65)] Forceful destruction successful, exit code 0 [2021-10-28 23:44:01,832 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:44:01,832 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:44:01,833 INFO L229 MonitoredProcess]: Starting monitored process 66 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:44:01,837 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:44:01,846 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-28 23:44:01,846 INFO L338 nArgumentSynthesizer]: Template has degree 1. [2021-10-28 23:44:01,846 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:44:01,847 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:44:01,847 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:44:01,847 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2021-10-28 23:44:01,849 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2021-10-28 23:44:01,849 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:44:01,854 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (66)] Waiting until timeout for monitored process [2021-10-28 23:44:01,862 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:44:01,894 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (66)] Forceful destruction successful, exit code 0 [2021-10-28 23:44:01,895 INFO L490 LassoAnalysis]: Using template '3-phase'. [2021-10-28 23:44:01,895 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:44:01,895 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:44:01,896 INFO L229 MonitoredProcess]: Starting monitored process 67 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:44:01,898 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:44:01,907 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-28 23:44:01,907 INFO L338 nArgumentSynthesizer]: Template has degree 2. [2021-10-28 23:44:01,907 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:44:01,907 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:44:01,908 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:44:01,908 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2021-10-28 23:44:01,913 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-10-28 23:44:01,913 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:44:01,919 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (67)] Waiting until timeout for monitored process [2021-10-28 23:44:01,931 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:44:01,962 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (67)] Forceful destruction successful, exit code 0 [2021-10-28 23:44:01,963 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:44:01,963 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:44:01,965 INFO L229 MonitoredProcess]: Starting monitored process 68 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:44:01,974 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:44:01,983 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-28 23:44:01,983 INFO L338 nArgumentSynthesizer]: Template has degree 2. [2021-10-28 23:44:01,983 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:44:01,983 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:44:01,983 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:44:01,983 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2021-10-28 23:44:01,987 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-10-28 23:44:01,987 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:44:01,995 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (68)] Waiting until timeout for monitored process [2021-10-28 23:44:01,999 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:44:02,031 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (68)] Forceful destruction successful, exit code 0 [2021-10-28 23:44:02,033 INFO L490 LassoAnalysis]: Using template '4-phase'. [2021-10-28 23:44:02,034 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:44:02,034 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:44:02,035 INFO L229 MonitoredProcess]: Starting monitored process 69 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:44:02,036 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:44:02,046 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-28 23:44:02,046 INFO L338 nArgumentSynthesizer]: Template has degree 3. [2021-10-28 23:44:02,046 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:44:02,047 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:44:02,047 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:44:02,047 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. [2021-10-28 23:44:02,054 INFO L401 nArgumentSynthesizer]: We have 5 Motzkin's Theorem applications. [2021-10-28 23:44:02,054 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:44:02,072 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (69)] Waiting until timeout for monitored process [2021-10-28 23:44:02,099 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:44:02,131 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (69)] Forceful destruction successful, exit code 0 [2021-10-28 23:44:02,132 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:44:02,132 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:44:02,133 INFO L229 MonitoredProcess]: Starting monitored process 70 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:44:02,134 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:44:02,144 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-28 23:44:02,144 INFO L338 nArgumentSynthesizer]: Template has degree 3. [2021-10-28 23:44:02,144 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:44:02,144 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:44:02,144 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:44:02,144 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. [2021-10-28 23:44:02,148 INFO L401 nArgumentSynthesizer]: We have 5 Motzkin's Theorem applications. [2021-10-28 23:44:02,149 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:44:02,163 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (70)] Waiting until timeout for monitored process [2021-10-28 23:44:02,167 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:44:02,199 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (70)] Forceful destruction successful, exit code 0 [2021-10-28 23:44:02,199 INFO L490 LassoAnalysis]: Using template '2-lex'. [2021-10-28 23:44:02,200 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:44:02,200 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:44:02,201 INFO L229 MonitoredProcess]: Starting monitored process 71 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:44:02,202 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:44:02,211 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-28 23:44:02,212 INFO L338 nArgumentSynthesizer]: Template has degree 1. [2021-10-28 23:44:02,212 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:44:02,212 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:44:02,212 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:44:02,212 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2021-10-28 23:44:02,217 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-10-28 23:44:02,217 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:44:02,227 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (71)] Waiting until timeout for monitored process [2021-10-28 23:44:02,237 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:44:02,296 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (71)] Forceful destruction successful, exit code 0 [2021-10-28 23:44:02,297 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:44:02,297 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:44:02,297 INFO L229 MonitoredProcess]: Starting monitored process 72 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:44:02,305 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:44:02,314 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-28 23:44:02,314 INFO L338 nArgumentSynthesizer]: Template has degree 1. [2021-10-28 23:44:02,314 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:44:02,314 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:44:02,314 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:44:02,314 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2021-10-28 23:44:02,316 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-10-28 23:44:02,317 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:44:02,337 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (72)] Waiting until timeout for monitored process [2021-10-28 23:44:02,347 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:44:02,394 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (72)] Forceful destruction successful, exit code 0 [2021-10-28 23:44:02,394 INFO L490 LassoAnalysis]: Using template '3-lex'. [2021-10-28 23:44:02,394 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:44:02,394 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:44:02,395 INFO L229 MonitoredProcess]: Starting monitored process 73 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:44:02,397 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 [2021-10-28 23:44:02,407 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-28 23:44:02,407 INFO L338 nArgumentSynthesizer]: Template has degree 3. [2021-10-28 23:44:02,407 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:44:02,407 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:44:02,407 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:44:02,407 INFO L205 nArgumentSynthesizer]: 6 template conjuncts. [2021-10-28 23:44:02,414 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 23:44:02,415 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:44:02,420 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (73)] Waiting until timeout for monitored process [2021-10-28 23:44:02,431 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:44:02,463 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (73)] Forceful destruction successful, exit code 0 [2021-10-28 23:44:02,464 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:44:02,464 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:44:02,465 INFO L229 MonitoredProcess]: Starting monitored process 74 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:44:02,466 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:44:02,475 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-28 23:44:02,476 INFO L338 nArgumentSynthesizer]: Template has degree 3. [2021-10-28 23:44:02,476 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:44:02,476 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:44:02,476 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:44:02,476 INFO L205 nArgumentSynthesizer]: 6 template conjuncts. [2021-10-28 23:44:02,480 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 23:44:02,480 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:44:02,487 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (74)] Waiting until timeout for monitored process [2021-10-28 23:44:02,495 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:44:02,528 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (74)] Forceful destruction successful, exit code 0 [2021-10-28 23:44:02,528 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:44:02,529 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-10-28 23:44:02,529 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2021-10-28 23:44:02,529 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) [2021-10-28 23:44:04,112 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:44:04,113 INFO L93 Difference]: Finished difference Result 282 states and 298 transitions. [2021-10-28 23:44:04,113 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-10-28 23:44:04,113 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 282 states and 298 transitions. [2021-10-28 23:44:04,114 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 13 [2021-10-28 23:44:04,115 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 282 states to 177 states and 189 transitions. [2021-10-28 23:44:04,115 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 177 [2021-10-28 23:44:04,116 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 177 [2021-10-28 23:44:04,116 INFO L73 IsDeterministic]: Start isDeterministic. Operand 177 states and 189 transitions. [2021-10-28 23:44:04,116 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-28 23:44:04,116 INFO L681 BuchiCegarLoop]: Abstraction has 177 states and 189 transitions. [2021-10-28 23:44:04,117 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 177 states and 189 transitions. [2021-10-28 23:44:04,119 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 177 to 122. [2021-10-28 23:44:04,119 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) [2021-10-28 23:44:04,120 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 122 states to 122 states and 133 transitions. [2021-10-28 23:44:04,120 INFO L704 BuchiCegarLoop]: Abstraction has 122 states and 133 transitions. [2021-10-28 23:44:04,120 INFO L587 BuchiCegarLoop]: Abstraction has 122 states and 133 transitions. [2021-10-28 23:44:04,120 INFO L425 BuchiCegarLoop]: ======== Iteration 28============ [2021-10-28 23:44:04,120 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 122 states and 133 transitions. [2021-10-28 23:44:04,121 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 13 [2021-10-28 23:44:04,121 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 23:44:04,121 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 23:44:04,122 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] [2021-10-28 23:44:04,122 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:44:04,122 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 [2021-10-28 23:44:04,122 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 [2021-10-28 23:44:04,122 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:44:04,123 INFO L85 PathProgramCache]: Analyzing trace with hash 544159432, now seen corresponding path program 1 times [2021-10-28 23:44:04,123 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:44:04,123 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2030185307] [2021-10-28 23:44:04,123 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:44:04,123 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:44:04,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:44:04,426 INFO L134 CoverageAnalysis]: Checked inductivity of 79 backedges. 43 proven. 31 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-10-28 23:44:04,426 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:44:04,426 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2030185307] [2021-10-28 23:44:04,426 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2030185307] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 23:44:04,427 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [372644866] [2021-10-28 23:44:04,427 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:44:04,427 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 23:44:04,427 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:44:04,427 INFO L229 MonitoredProcess]: Starting monitored process 75 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 23:44:04,428 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (75)] Waiting until timeout for monitored process [2021-10-28 23:44:04,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:44:04,915 INFO L263 TraceCheckSpWp]: Trace formula consists of 179 conjuncts, 9 conjunts are in the unsatisfiable core [2021-10-28 23:44:04,916 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:44:06,052 INFO L134 CoverageAnalysis]: Checked inductivity of 79 backedges. 48 proven. 3 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2021-10-28 23:44:06,052 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [372644866] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 23:44:06,052 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-28 23:44:06,052 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 6] total 13 [2021-10-28 23:44:06,052 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1644958057] [2021-10-28 23:44:06,053 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-10-28 23:44:06,053 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:44:06,053 INFO L85 PathProgramCache]: Analyzing trace with hash -1233229496, now seen corresponding path program 2 times [2021-10-28 23:44:06,053 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:44:06,053 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1339682908] [2021-10-28 23:44:06,053 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:44:06,053 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:44:06,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:44:06,068 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 23:44:06,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:44:06,073 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 23:44:06,268 INFO L210 LassoAnalysis]: Preferences: [2021-10-28 23:44:06,268 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-28 23:44:06,268 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-28 23:44:06,268 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-28 23:44:06,268 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-10-28 23:44:06,268 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:44:06,268 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-28 23:44:06,268 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-28 23:44:06,268 INFO L133 ssoRankerPreferences]: Filename of dumped script: byte_add_1-1.i_Iteration28_Loop [2021-10-28 23:44:06,268 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-28 23:44:06,268 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-28 23:44:06,269 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:44:06,297 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:44:06,637 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-28 23:44:06,637 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-10-28 23:44:06,637 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:44:06,637 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:44:06,638 INFO L229 MonitoredProcess]: Starting monitored process 76 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:44:06,639 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (76)] Waiting until timeout for monitored process [2021-10-28 23:44:06,639 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-28 23:44:06,639 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 23:44:06,701 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (76)] Ended with exit code 0 [2021-10-28 23:44:06,701 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:44:06,702 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:44:06,702 INFO L229 MonitoredProcess]: Starting monitored process 77 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:44:06,703 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (77)] Waiting until timeout for monitored process [2021-10-28 23:44:06,703 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-10-28 23:44:06,703 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 23:44:08,505 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-10-28 23:44:08,509 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (77)] Forceful destruction successful, exit code 0 [2021-10-28 23:44:08,509 INFO L210 LassoAnalysis]: Preferences: [2021-10-28 23:44:08,509 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-28 23:44:08,509 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-28 23:44:08,509 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-28 23:44:08,509 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-28 23:44:08,509 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:44:08,509 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-28 23:44:08,509 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-28 23:44:08,509 INFO L133 ssoRankerPreferences]: Filename of dumped script: byte_add_1-1.i_Iteration28_Loop [2021-10-28 23:44:08,510 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-28 23:44:08,510 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-28 23:44:08,510 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:44:08,524 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:44:08,880 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-28 23:44:08,880 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-10-28 23:44:08,881 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:44:08,881 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:44:08,881 INFO L229 MonitoredProcess]: Starting monitored process 78 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:44:08,882 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (78)] Waiting until timeout for monitored process [2021-10-28 23:44:08,882 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:44:08,889 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:44:08,889 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:44:08,889 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:44:08,889 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:44:08,890 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:44:08,891 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 23:44:08,891 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:44:08,893 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:44:08,911 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (78)] Ended with exit code 0 [2021-10-28 23:44:08,911 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:44:08,911 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:44:08,912 INFO L229 MonitoredProcess]: Starting monitored process 79 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:44:08,923 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (79)] Waiting until timeout for monitored process [2021-10-28 23:44:08,923 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:44:08,930 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:44:08,930 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:44:08,930 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:44:08,930 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:44:08,930 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:44:08,932 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 23:44:08,932 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:44:08,935 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:44:08,954 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (79)] Ended with exit code 0 [2021-10-28 23:44:08,955 INFO L490 LassoAnalysis]: Using template '2-nested'. [2021-10-28 23:44:08,955 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:44:08,955 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:44:08,956 INFO L229 MonitoredProcess]: Starting monitored process 80 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:44:08,956 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (80)] Waiting until timeout for monitored process [2021-10-28 23:44:08,957 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:44:08,964 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:44:08,964 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:44:08,964 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:44:08,964 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:44:08,964 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2021-10-28 23:44:08,966 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2021-10-28 23:44:08,966 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:44:08,978 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:44:08,996 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (80)] Ended with exit code 0 [2021-10-28 23:44:08,997 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:44:08,997 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:44:08,997 INFO L229 MonitoredProcess]: Starting monitored process 81 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:44:08,998 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (81)] Waiting until timeout for monitored process [2021-10-28 23:44:08,998 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:44:09,005 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:44:09,005 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:44:09,006 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:44:09,006 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:44:09,006 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2021-10-28 23:44:09,008 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2021-10-28 23:44:09,008 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:44:09,012 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:44:09,031 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (81)] Ended with exit code 0 [2021-10-28 23:44:09,031 INFO L490 LassoAnalysis]: Using template '3-nested'. [2021-10-28 23:44:09,031 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:44:09,031 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:44:09,032 INFO L229 MonitoredProcess]: Starting monitored process 82 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:44:09,032 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (82)] Waiting until timeout for monitored process [2021-10-28 23:44:09,033 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:44:09,040 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:44:09,040 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:44:09,040 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:44:09,040 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:44:09,040 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2021-10-28 23:44:09,042 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-10-28 23:44:09,042 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:44:09,045 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:44:09,064 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (82)] Ended with exit code 0 [2021-10-28 23:44:09,064 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:44:09,064 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:44:09,065 INFO L229 MonitoredProcess]: Starting monitored process 83 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:44:09,065 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (83)] Waiting until timeout for monitored process [2021-10-28 23:44:09,066 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:44:09,073 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:44:09,073 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:44:09,073 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:44:09,073 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:44:09,073 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2021-10-28 23:44:09,077 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-10-28 23:44:09,077 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:44:09,082 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:44:09,101 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (83)] Forceful destruction successful, exit code 0 [2021-10-28 23:44:09,101 INFO L490 LassoAnalysis]: Using template '4-nested'. [2021-10-28 23:44:09,102 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:44:09,102 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:44:09,102 INFO L229 MonitoredProcess]: Starting monitored process 84 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:44:09,103 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (84)] Waiting until timeout for monitored process [2021-10-28 23:44:09,103 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:44:09,110 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:44:09,111 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:44:09,111 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:44:09,111 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:44:09,111 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. [2021-10-28 23:44:09,113 INFO L401 nArgumentSynthesizer]: We have 5 Motzkin's Theorem applications. [2021-10-28 23:44:09,113 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:44:09,117 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:44:09,135 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (84)] Forceful destruction successful, exit code 0 [2021-10-28 23:44:09,135 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:44:09,136 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:44:09,136 INFO L229 MonitoredProcess]: Starting monitored process 85 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:44:09,137 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (85)] Waiting until timeout for monitored process [2021-10-28 23:44:09,137 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:44:09,145 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:44:09,145 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:44:09,145 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:44:09,145 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:44:09,145 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. [2021-10-28 23:44:09,150 INFO L401 nArgumentSynthesizer]: We have 5 Motzkin's Theorem applications. [2021-10-28 23:44:09,150 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:44:09,156 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:44:09,175 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (85)] Forceful destruction successful, exit code 0 [2021-10-28 23:44:09,175 INFO L490 LassoAnalysis]: Using template '2-phase'. [2021-10-28 23:44:09,175 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:44:09,175 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:44:09,176 INFO L229 MonitoredProcess]: Starting monitored process 86 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:44:09,178 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (86)] Waiting until timeout for monitored process [2021-10-28 23:44:09,178 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:44:09,185 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-28 23:44:09,185 INFO L338 nArgumentSynthesizer]: Template has degree 1. [2021-10-28 23:44:09,185 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:44:09,185 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:44:09,185 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:44:09,185 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2021-10-28 23:44:09,187 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2021-10-28 23:44:09,187 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:44:09,190 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:44:09,209 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (86)] Forceful destruction successful, exit code 0 [2021-10-28 23:44:09,209 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:44:09,209 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:44:09,211 INFO L229 MonitoredProcess]: Starting monitored process 87 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:44:09,212 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (87)] Waiting until timeout for monitored process [2021-10-28 23:44:09,212 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:44:09,220 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-28 23:44:09,220 INFO L338 nArgumentSynthesizer]: Template has degree 1. [2021-10-28 23:44:09,220 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:44:09,220 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:44:09,220 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:44:09,220 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2021-10-28 23:44:09,223 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2021-10-28 23:44:09,223 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:44:09,229 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:44:09,254 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (87)] Forceful destruction successful, exit code 0 [2021-10-28 23:44:09,254 INFO L490 LassoAnalysis]: Using template '3-phase'. [2021-10-28 23:44:09,254 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:44:09,254 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:44:09,255 INFO L229 MonitoredProcess]: Starting monitored process 88 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:44:09,255 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (88)] Waiting until timeout for monitored process [2021-10-28 23:44:09,256 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:44:09,263 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-28 23:44:09,263 INFO L338 nArgumentSynthesizer]: Template has degree 2. [2021-10-28 23:44:09,263 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:44:09,263 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:44:09,263 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:44:09,263 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2021-10-28 23:44:09,265 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-10-28 23:44:09,265 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:44:09,272 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:44:09,292 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (88)] Ended with exit code 0 [2021-10-28 23:44:09,293 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:44:09,293 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:44:09,293 INFO L229 MonitoredProcess]: Starting monitored process 89 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:44:09,294 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (89)] Waiting until timeout for monitored process [2021-10-28 23:44:09,295 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:44:09,302 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-28 23:44:09,302 INFO L338 nArgumentSynthesizer]: Template has degree 2. [2021-10-28 23:44:09,302 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:44:09,302 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:44:09,302 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:44:09,302 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2021-10-28 23:44:09,306 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-10-28 23:44:09,306 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:44:09,316 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:44:09,335 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (89)] Forceful destruction successful, exit code 0 [2021-10-28 23:44:09,335 INFO L490 LassoAnalysis]: Using template '4-phase'. [2021-10-28 23:44:09,335 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:44:09,335 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:44:09,336 INFO L229 MonitoredProcess]: Starting monitored process 90 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:44:09,338 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (90)] Waiting until timeout for monitored process [2021-10-28 23:44:09,338 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:44:09,345 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-28 23:44:09,346 INFO L338 nArgumentSynthesizer]: Template has degree 3. [2021-10-28 23:44:09,346 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:44:09,346 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:44:09,346 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:44:09,346 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. [2021-10-28 23:44:09,348 INFO L401 nArgumentSynthesizer]: We have 5 Motzkin's Theorem applications. [2021-10-28 23:44:09,349 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:44:09,356 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:44:09,375 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (90)] Ended with exit code 0 [2021-10-28 23:44:09,375 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:44:09,376 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:44:09,376 INFO L229 MonitoredProcess]: Starting monitored process 91 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:44:09,377 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (91)] Waiting until timeout for monitored process [2021-10-28 23:44:09,378 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 [2021-10-28 23:44:09,385 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-28 23:44:09,385 INFO L338 nArgumentSynthesizer]: Template has degree 3. [2021-10-28 23:44:09,385 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:44:09,385 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:44:09,386 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:44:09,386 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. [2021-10-28 23:44:09,390 INFO L401 nArgumentSynthesizer]: We have 5 Motzkin's Theorem applications. [2021-10-28 23:44:09,391 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:44:09,407 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:44:09,426 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (91)] Forceful destruction successful, exit code 0 [2021-10-28 23:44:09,426 INFO L490 LassoAnalysis]: Using template '2-lex'. [2021-10-28 23:44:09,426 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:44:09,426 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:44:09,427 INFO L229 MonitoredProcess]: Starting monitored process 92 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:44:09,428 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (92)] Waiting until timeout for monitored process [2021-10-28 23:44:09,428 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 [2021-10-28 23:44:09,435 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-28 23:44:09,435 INFO L338 nArgumentSynthesizer]: Template has degree 1. [2021-10-28 23:44:09,435 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:44:09,436 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:44:09,436 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:44:09,436 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2021-10-28 23:44:09,438 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-10-28 23:44:09,439 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:44:09,450 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:44:09,469 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (92)] Forceful destruction successful, exit code 0 [2021-10-28 23:44:09,469 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:44:09,469 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:44:09,469 INFO L229 MonitoredProcess]: Starting monitored process 93 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:44:09,470 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (93)] Waiting until timeout for monitored process [2021-10-28 23:44:09,470 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:44:09,478 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-28 23:44:09,478 INFO L338 nArgumentSynthesizer]: Template has degree 1. [2021-10-28 23:44:09,478 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:44:09,478 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:44:09,478 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:44:09,478 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2021-10-28 23:44:09,481 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-10-28 23:44:09,481 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:44:09,488 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:44:09,507 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (93)] Ended with exit code 0 [2021-10-28 23:44:09,507 INFO L490 LassoAnalysis]: Using template '3-lex'. [2021-10-28 23:44:09,508 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:44:09,508 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:44:09,508 INFO L229 MonitoredProcess]: Starting monitored process 94 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:44:09,509 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (94)] Waiting until timeout for monitored process [2021-10-28 23:44:09,509 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:44:09,516 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-28 23:44:09,517 INFO L338 nArgumentSynthesizer]: Template has degree 3. [2021-10-28 23:44:09,517 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:44:09,517 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:44:09,517 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:44:09,517 INFO L205 nArgumentSynthesizer]: 6 template conjuncts. [2021-10-28 23:44:09,519 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 23:44:09,520 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:44:09,526 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:44:09,545 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (94)] Forceful destruction successful, exit code 0 [2021-10-28 23:44:09,545 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:44:09,545 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:44:09,546 INFO L229 MonitoredProcess]: Starting monitored process 95 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:44:09,546 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (95)] Waiting until timeout for monitored process [2021-10-28 23:44:09,547 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:44:09,554 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-28 23:44:09,554 INFO L338 nArgumentSynthesizer]: Template has degree 3. [2021-10-28 23:44:09,554 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:44:09,554 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:44:09,554 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:44:09,555 INFO L205 nArgumentSynthesizer]: 6 template conjuncts. [2021-10-28 23:44:09,560 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 23:44:09,560 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:44:09,569 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:44:09,588 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (95)] Forceful destruction successful, exit code 0 [2021-10-28 23:44:09,589 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:44:09,589 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-10-28 23:44:09,589 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2021-10-28 23:44:09,589 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) [2021-10-28 23:44:10,500 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:44:10,500 INFO L93 Difference]: Finished difference Result 317 states and 339 transitions. [2021-10-28 23:44:10,500 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-10-28 23:44:10,500 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 317 states and 339 transitions. [2021-10-28 23:44:10,501 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 26 [2021-10-28 23:44:10,503 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 317 states to 200 states and 216 transitions. [2021-10-28 23:44:10,503 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 200 [2021-10-28 23:44:10,503 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 200 [2021-10-28 23:44:10,503 INFO L73 IsDeterministic]: Start isDeterministic. Operand 200 states and 216 transitions. [2021-10-28 23:44:10,504 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-28 23:44:10,504 INFO L681 BuchiCegarLoop]: Abstraction has 200 states and 216 transitions. [2021-10-28 23:44:10,504 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 200 states and 216 transitions. [2021-10-28 23:44:10,506 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 200 to 122. [2021-10-28 23:44:10,507 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) [2021-10-28 23:44:10,507 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 122 states to 122 states and 132 transitions. [2021-10-28 23:44:10,507 INFO L704 BuchiCegarLoop]: Abstraction has 122 states and 132 transitions. [2021-10-28 23:44:10,507 INFO L587 BuchiCegarLoop]: Abstraction has 122 states and 132 transitions. [2021-10-28 23:44:10,508 INFO L425 BuchiCegarLoop]: ======== Iteration 29============ [2021-10-28 23:44:10,508 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 122 states and 132 transitions. [2021-10-28 23:44:10,508 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 13 [2021-10-28 23:44:10,508 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 23:44:10,508 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 23:44:10,509 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] [2021-10-28 23:44:10,509 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:44:10,509 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 [2021-10-28 23:44:10,510 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 [2021-10-28 23:44:10,510 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:44:10,510 INFO L85 PathProgramCache]: Analyzing trace with hash -820936562, now seen corresponding path program 1 times [2021-10-28 23:44:10,510 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:44:10,510 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1356749398] [2021-10-28 23:44:10,510 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:44:10,511 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:44:10,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:44:10,875 INFO L134 CoverageAnalysis]: Checked inductivity of 79 backedges. 47 proven. 11 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2021-10-28 23:44:10,875 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:44:10,875 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1356749398] [2021-10-28 23:44:10,875 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1356749398] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 23:44:10,875 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [553048387] [2021-10-28 23:44:10,876 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:44:10,876 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 23:44:10,876 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:44:10,877 INFO L229 MonitoredProcess]: Starting monitored process 96 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 23:44:10,883 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (96)] Waiting until timeout for monitored process [2021-10-28 23:44:11,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:44:11,431 INFO L263 TraceCheckSpWp]: Trace formula consists of 186 conjuncts, 22 conjunts are in the unsatisfiable core [2021-10-28 23:44:11,432 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:44:12,202 INFO L134 CoverageAnalysis]: Checked inductivity of 79 backedges. 46 proven. 11 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2021-10-28 23:44:12,202 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [553048387] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 23:44:12,202 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-28 23:44:12,202 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8] total 15 [2021-10-28 23:44:12,202 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1534148180] [2021-10-28 23:44:12,203 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-10-28 23:44:12,203 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:44:12,203 INFO L85 PathProgramCache]: Analyzing trace with hash -1233229496, now seen corresponding path program 3 times [2021-10-28 23:44:12,203 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:44:12,203 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1411379255] [2021-10-28 23:44:12,203 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:44:12,203 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:44:12,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:44:12,208 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 23:44:12,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:44:12,212 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 23:44:12,393 INFO L210 LassoAnalysis]: Preferences: [2021-10-28 23:44:12,393 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-28 23:44:12,393 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-28 23:44:12,393 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-28 23:44:12,393 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-10-28 23:44:12,393 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:44:12,393 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-28 23:44:12,393 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-28 23:44:12,393 INFO L133 ssoRankerPreferences]: Filename of dumped script: byte_add_1-1.i_Iteration29_Loop [2021-10-28 23:44:12,393 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-28 23:44:12,393 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-28 23:44:12,394 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:44:12,421 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:44:12,745 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-28 23:44:12,746 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-10-28 23:44:12,746 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:44:12,746 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:44:12,749 INFO L229 MonitoredProcess]: Starting monitored process 97 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:44:12,749 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (97)] Waiting until timeout for monitored process [2021-10-28 23:44:12,749 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-28 23:44:12,750 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 23:44:12,799 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (97)] Ended with exit code 0 [2021-10-28 23:44:12,799 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:44:12,799 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:44:12,800 INFO L229 MonitoredProcess]: Starting monitored process 98 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:44:12,801 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (98)] Waiting until timeout for monitored process [2021-10-28 23:44:12,801 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-10-28 23:44:12,801 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 23:44:14,257 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-10-28 23:44:14,260 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (98)] Ended with exit code 0 [2021-10-28 23:44:14,260 INFO L210 LassoAnalysis]: Preferences: [2021-10-28 23:44:14,261 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-28 23:44:14,261 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-28 23:44:14,261 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-28 23:44:14,261 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-28 23:44:14,261 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:44:14,261 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-28 23:44:14,261 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-28 23:44:14,261 INFO L133 ssoRankerPreferences]: Filename of dumped script: byte_add_1-1.i_Iteration29_Loop [2021-10-28 23:44:14,261 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-28 23:44:14,261 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-28 23:44:14,262 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:44:14,292 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:44:14,556 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-28 23:44:14,556 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-10-28 23:44:14,556 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:44:14,556 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:44:14,557 INFO L229 MonitoredProcess]: Starting monitored process 99 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:44:14,558 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (99)] Waiting until timeout for monitored process [2021-10-28 23:44:14,558 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 [2021-10-28 23:44:14,565 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:44:14,565 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:44:14,565 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:44:14,565 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:44:14,565 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:44:14,567 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 23:44:14,567 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:44:14,571 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:44:14,589 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (99)] Forceful destruction successful, exit code 0 [2021-10-28 23:44:14,590 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:44:14,590 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:44:14,590 INFO L229 MonitoredProcess]: Starting monitored process 100 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:44:14,591 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (100)] Waiting until timeout for monitored process [2021-10-28 23:44:14,592 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:44:14,599 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:44:14,599 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:44:14,599 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:44:14,599 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:44:14,599 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:44:14,600 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 23:44:14,600 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:44:14,602 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:44:14,621 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (100)] Forceful destruction successful, exit code 0 [2021-10-28 23:44:14,623 INFO L490 LassoAnalysis]: Using template '2-nested'. [2021-10-28 23:44:14,623 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:44:14,623 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:44:14,623 INFO L229 MonitoredProcess]: Starting monitored process 101 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:44:14,624 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (101)] Waiting until timeout for monitored process [2021-10-28 23:44:14,624 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:44:14,631 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:44:14,632 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:44:14,632 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:44:14,632 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:44:14,632 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2021-10-28 23:44:14,634 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2021-10-28 23:44:14,634 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:44:14,638 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:44:14,657 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (101)] Forceful destruction successful, exit code 0 [2021-10-28 23:44:14,657 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:44:14,657 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:44:14,657 INFO L229 MonitoredProcess]: Starting monitored process 102 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:44:14,665 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (102)] Waiting until timeout for monitored process [2021-10-28 23:44:14,665 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:44:14,672 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:44:14,673 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:44:14,673 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:44:14,673 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:44:14,673 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2021-10-28 23:44:14,674 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2021-10-28 23:44:14,674 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:44:14,677 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:44:14,695 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (102)] Ended with exit code 0 [2021-10-28 23:44:14,695 INFO L490 LassoAnalysis]: Using template '3-nested'. [2021-10-28 23:44:14,696 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:44:14,696 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:44:14,696 INFO L229 MonitoredProcess]: Starting monitored process 103 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:44:14,697 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (103)] Waiting until timeout for monitored process [2021-10-28 23:44:14,697 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 [2021-10-28 23:44:14,704 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:44:14,704 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:44:14,704 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:44:14,705 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:44:14,705 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2021-10-28 23:44:14,708 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-10-28 23:44:14,708 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:44:14,713 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:44:14,731 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (103)] Forceful destruction successful, exit code 0 [2021-10-28 23:44:14,732 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:44:14,732 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:44:14,732 INFO L229 MonitoredProcess]: Starting monitored process 104 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:44:14,733 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (104)] Waiting until timeout for monitored process [2021-10-28 23:44:14,733 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:44:14,740 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:44:14,740 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:44:14,740 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:44:14,740 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:44:14,741 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2021-10-28 23:44:14,742 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-10-28 23:44:14,742 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:44:14,745 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:44:14,764 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (104)] Forceful destruction successful, exit code 0 [2021-10-28 23:44:14,764 INFO L490 LassoAnalysis]: Using template '4-nested'. [2021-10-28 23:44:14,765 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:44:14,765 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:44:14,765 INFO L229 MonitoredProcess]: Starting monitored process 105 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:44:14,766 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (105)] Waiting until timeout for monitored process [2021-10-28 23:44:14,766 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:44:14,774 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:44:14,774 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:44:14,774 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:44:14,774 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:44:14,774 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. [2021-10-28 23:44:14,778 INFO L401 nArgumentSynthesizer]: We have 5 Motzkin's Theorem applications. [2021-10-28 23:44:14,779 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:44:14,802 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:44:14,821 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (105)] Forceful destruction successful, exit code 0 [2021-10-28 23:44:14,822 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:44:14,822 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:44:14,822 INFO L229 MonitoredProcess]: Starting monitored process 106 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:44:14,823 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (106)] Waiting until timeout for monitored process [2021-10-28 23:44:14,823 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 [2021-10-28 23:44:14,831 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:44:14,831 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:44:14,831 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:44:14,831 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:44:14,831 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. [2021-10-28 23:44:14,833 INFO L401 nArgumentSynthesizer]: We have 5 Motzkin's Theorem applications. [2021-10-28 23:44:14,833 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:44:14,837 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:44:14,855 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (106)] Ended with exit code 0 [2021-10-28 23:44:14,855 INFO L490 LassoAnalysis]: Using template '2-phase'. [2021-10-28 23:44:14,855 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:44:14,856 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:44:14,856 INFO L229 MonitoredProcess]: Starting monitored process 107 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:44:14,857 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (107)] Waiting until timeout for monitored process [2021-10-28 23:44:14,857 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:44:14,864 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-28 23:44:14,864 INFO L338 nArgumentSynthesizer]: Template has degree 1. [2021-10-28 23:44:14,864 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:44:14,864 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:44:14,864 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:44:14,865 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2021-10-28 23:44:14,867 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2021-10-28 23:44:14,867 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:44:14,874 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:44:14,892 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (107)] Forceful destruction successful, exit code 0 [2021-10-28 23:44:14,892 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:44:14,892 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:44:14,893 INFO L229 MonitoredProcess]: Starting monitored process 108 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:44:14,894 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (108)] Waiting until timeout for monitored process [2021-10-28 23:44:14,894 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:44:14,901 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-28 23:44:14,901 INFO L338 nArgumentSynthesizer]: Template has degree 1. [2021-10-28 23:44:14,901 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:44:14,901 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:44:14,901 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:44:14,901 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2021-10-28 23:44:14,903 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2021-10-28 23:44:14,903 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:44:14,906 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:44:14,925 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (108)] Ended with exit code 0 [2021-10-28 23:44:14,925 INFO L490 LassoAnalysis]: Using template '3-phase'. [2021-10-28 23:44:14,925 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:44:14,925 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:44:14,926 INFO L229 MonitoredProcess]: Starting monitored process 109 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:44:14,930 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (109)] Waiting until timeout for monitored process [2021-10-28 23:44:14,930 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:44:14,937 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-28 23:44:14,937 INFO L338 nArgumentSynthesizer]: Template has degree 2. [2021-10-28 23:44:14,937 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:44:14,937 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:44:14,937 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:44:14,938 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2021-10-28 23:44:14,941 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-10-28 23:44:14,941 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:44:14,951 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:44:14,970 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (109)] Forceful destruction successful, exit code 0 [2021-10-28 23:44:14,970 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:44:14,970 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:44:14,971 INFO L229 MonitoredProcess]: Starting monitored process 110 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:44:14,971 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (110)] Waiting until timeout for monitored process [2021-10-28 23:44:14,972 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:44:14,979 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-28 23:44:14,979 INFO L338 nArgumentSynthesizer]: Template has degree 2. [2021-10-28 23:44:14,979 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:44:14,979 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:44:14,979 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:44:14,979 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2021-10-28 23:44:14,982 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-10-28 23:44:14,982 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:44:14,992 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:44:15,010 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (110)] Forceful destruction successful, exit code 0 [2021-10-28 23:44:15,010 INFO L490 LassoAnalysis]: Using template '4-phase'. [2021-10-28 23:44:15,010 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:44:15,010 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:44:15,011 INFO L229 MonitoredProcess]: Starting monitored process 111 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:44:15,012 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (111)] Waiting until timeout for monitored process [2021-10-28 23:44:15,013 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:44:15,020 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-28 23:44:15,020 INFO L338 nArgumentSynthesizer]: Template has degree 3. [2021-10-28 23:44:15,020 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:44:15,020 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:44:15,021 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:44:15,021 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. [2021-10-28 23:44:15,031 INFO L401 nArgumentSynthesizer]: We have 5 Motzkin's Theorem applications. [2021-10-28 23:44:15,031 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:44:15,049 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:44:15,068 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (111)] Ended with exit code 0 [2021-10-28 23:44:15,068 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:44:15,068 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:44:15,068 INFO L229 MonitoredProcess]: Starting monitored process 112 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:44:15,069 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (112)] Waiting until timeout for monitored process [2021-10-28 23:44:15,069 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:44:15,079 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-28 23:44:15,079 INFO L338 nArgumentSynthesizer]: Template has degree 3. [2021-10-28 23:44:15,079 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:44:15,079 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:44:15,079 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:44:15,079 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. [2021-10-28 23:44:15,083 INFO L401 nArgumentSynthesizer]: We have 5 Motzkin's Theorem applications. [2021-10-28 23:44:15,083 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:44:15,106 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:44:15,127 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (112)] Ended with exit code 0 [2021-10-28 23:44:15,127 INFO L490 LassoAnalysis]: Using template '2-lex'. [2021-10-28 23:44:15,128 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:44:15,128 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:44:15,128 INFO L229 MonitoredProcess]: Starting monitored process 113 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:44:15,129 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (113)] Waiting until timeout for monitored process [2021-10-28 23:44:15,129 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:44:15,136 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-28 23:44:15,136 INFO L338 nArgumentSynthesizer]: Template has degree 1. [2021-10-28 23:44:15,137 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:44:15,137 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:44:15,137 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:44:15,137 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2021-10-28 23:44:15,140 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-10-28 23:44:15,140 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:44:15,146 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:44:15,165 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (113)] Ended with exit code 0 [2021-10-28 23:44:15,165 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:44:15,165 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:44:15,166 INFO L229 MonitoredProcess]: Starting monitored process 114 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:44:15,166 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (114)] Waiting until timeout for monitored process [2021-10-28 23:44:15,167 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:44:15,174 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-28 23:44:15,174 INFO L338 nArgumentSynthesizer]: Template has degree 1. [2021-10-28 23:44:15,174 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:44:15,174 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:44:15,174 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:44:15,174 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2021-10-28 23:44:15,176 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-10-28 23:44:15,176 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:44:15,180 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:44:15,198 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (114)] Ended with exit code 0 [2021-10-28 23:44:15,198 INFO L490 LassoAnalysis]: Using template '3-lex'. [2021-10-28 23:44:15,198 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:44:15,198 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:44:15,199 INFO L229 MonitoredProcess]: Starting monitored process 115 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:44:15,200 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (115)] Waiting until timeout for monitored process [2021-10-28 23:44:15,201 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:44:15,209 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-28 23:44:15,209 INFO L338 nArgumentSynthesizer]: Template has degree 3. [2021-10-28 23:44:15,209 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:44:15,209 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:44:15,209 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:44:15,209 INFO L205 nArgumentSynthesizer]: 6 template conjuncts. [2021-10-28 23:44:15,215 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 23:44:15,215 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:44:15,225 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:44:15,243 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (115)] Forceful destruction successful, exit code 0 [2021-10-28 23:44:15,243 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:44:15,244 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:44:15,244 INFO L229 MonitoredProcess]: Starting monitored process 116 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:44:15,245 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (116)] Waiting until timeout for monitored process [2021-10-28 23:44:15,245 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:44:15,252 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-28 23:44:15,252 INFO L338 nArgumentSynthesizer]: Template has degree 3. [2021-10-28 23:44:15,252 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:44:15,253 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:44:15,253 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:44:15,253 INFO L205 nArgumentSynthesizer]: 6 template conjuncts. [2021-10-28 23:44:15,255 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 23:44:15,255 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:44:15,262 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:44:15,280 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (116)] Forceful destruction successful, exit code 0 [2021-10-28 23:44:15,282 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:44:15,282 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-10-28 23:44:15,282 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=176, Unknown=0, NotChecked=0, Total=210 [2021-10-28 23:44:15,283 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) [2021-10-28 23:44:16,662 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:44:16,662 INFO L93 Difference]: Finished difference Result 157 states and 162 transitions. [2021-10-28 23:44:16,662 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-10-28 23:44:16,662 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 157 states and 162 transitions. [2021-10-28 23:44:16,663 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 13 [2021-10-28 23:44:16,664 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 157 states to 120 states and 125 transitions. [2021-10-28 23:44:16,664 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 120 [2021-10-28 23:44:16,664 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 120 [2021-10-28 23:44:16,664 INFO L73 IsDeterministic]: Start isDeterministic. Operand 120 states and 125 transitions. [2021-10-28 23:44:16,665 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-28 23:44:16,665 INFO L681 BuchiCegarLoop]: Abstraction has 120 states and 125 transitions. [2021-10-28 23:44:16,665 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 120 states and 125 transitions. [2021-10-28 23:44:16,667 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 120 to 114. [2021-10-28 23:44:16,667 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) [2021-10-28 23:44:16,668 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 114 states and 119 transitions. [2021-10-28 23:44:16,668 INFO L704 BuchiCegarLoop]: Abstraction has 114 states and 119 transitions. [2021-10-28 23:44:16,668 INFO L587 BuchiCegarLoop]: Abstraction has 114 states and 119 transitions. [2021-10-28 23:44:16,668 INFO L425 BuchiCegarLoop]: ======== Iteration 30============ [2021-10-28 23:44:16,668 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 114 states and 119 transitions. [2021-10-28 23:44:16,669 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 13 [2021-10-28 23:44:16,669 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 23:44:16,669 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 23:44:16,669 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] [2021-10-28 23:44:16,669 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:44:16,670 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 [2021-10-28 23:44:16,670 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 [2021-10-28 23:44:16,670 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:44:16,670 INFO L85 PathProgramCache]: Analyzing trace with hash 1140638096, now seen corresponding path program 1 times [2021-10-28 23:44:16,671 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:44:16,671 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [301320076] [2021-10-28 23:44:16,671 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:44:16,671 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:44:16,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:44:16,849 INFO L134 CoverageAnalysis]: Checked inductivity of 79 backedges. 57 proven. 6 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2021-10-28 23:44:16,849 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:44:16,849 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [301320076] [2021-10-28 23:44:16,849 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [301320076] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 23:44:16,849 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [332250274] [2021-10-28 23:44:16,849 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:44:16,849 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 23:44:16,849 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:44:16,852 INFO L229 MonitoredProcess]: Starting monitored process 117 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 23:44:16,872 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (117)] Waiting until timeout for monitored process [2021-10-28 23:44:17,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:44:17,467 INFO L263 TraceCheckSpWp]: Trace formula consists of 183 conjuncts, 15 conjunts are in the unsatisfiable core [2021-10-28 23:44:17,468 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:44:17,805 INFO L134 CoverageAnalysis]: Checked inductivity of 79 backedges. 57 proven. 6 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2021-10-28 23:44:17,805 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [332250274] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 23:44:17,805 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-28 23:44:17,805 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 10 [2021-10-28 23:44:17,806 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [276755609] [2021-10-28 23:44:17,806 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-10-28 23:44:17,806 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:44:17,806 INFO L85 PathProgramCache]: Analyzing trace with hash -1233229496, now seen corresponding path program 4 times [2021-10-28 23:44:17,807 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:44:17,807 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [150535832] [2021-10-28 23:44:17,807 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:44:17,807 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:44:17,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:44:17,813 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 23:44:17,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:44:17,817 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 23:44:18,021 INFO L210 LassoAnalysis]: Preferences: [2021-10-28 23:44:18,021 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-28 23:44:18,021 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-28 23:44:18,021 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-28 23:44:18,021 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-10-28 23:44:18,021 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:44:18,021 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-28 23:44:18,022 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-28 23:44:18,022 INFO L133 ssoRankerPreferences]: Filename of dumped script: byte_add_1-1.i_Iteration30_Loop [2021-10-28 23:44:18,022 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-28 23:44:18,022 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-28 23:44:18,022 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:44:18,049 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:44:18,324 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-28 23:44:18,324 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-10-28 23:44:18,325 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:44:18,325 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:44:18,329 INFO L229 MonitoredProcess]: Starting monitored process 118 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:44:18,329 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (118)] Waiting until timeout for monitored process [2021-10-28 23:44:18,330 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-28 23:44:18,330 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 23:44:18,377 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (118)] Forceful destruction successful, exit code 0 [2021-10-28 23:44:18,377 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:44:18,377 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:44:18,378 INFO L229 MonitoredProcess]: Starting monitored process 119 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:44:18,378 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (119)] Waiting until timeout for monitored process [2021-10-28 23:44:18,379 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-10-28 23:44:18,379 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 23:44:20,016 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-10-28 23:44:20,019 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (119)] Forceful destruction successful, exit code 0 [2021-10-28 23:44:20,019 INFO L210 LassoAnalysis]: Preferences: [2021-10-28 23:44:20,019 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-28 23:44:20,019 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-28 23:44:20,019 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-28 23:44:20,020 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-28 23:44:20,020 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:44:20,020 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-28 23:44:20,020 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-28 23:44:20,020 INFO L133 ssoRankerPreferences]: Filename of dumped script: byte_add_1-1.i_Iteration30_Loop [2021-10-28 23:44:20,020 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-28 23:44:20,020 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-28 23:44:20,020 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:44:20,047 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:44:20,313 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-28 23:44:20,313 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-10-28 23:44:20,313 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:44:20,313 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:44:20,316 INFO L229 MonitoredProcess]: Starting monitored process 120 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:44:20,317 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 [2021-10-28 23:44:20,317 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (120)] Waiting until timeout for monitored process [2021-10-28 23:44:20,324 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:44:20,324 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:44:20,324 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:44:20,324 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:44:20,324 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:44:20,326 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 23:44:20,326 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:44:20,329 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:44:20,347 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (120)] Ended with exit code 0 [2021-10-28 23:44:20,348 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:44:20,348 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:44:20,348 INFO L229 MonitoredProcess]: Starting monitored process 121 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:44:20,349 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (121)] Waiting until timeout for monitored process [2021-10-28 23:44:20,350 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:44:20,357 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:44:20,357 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:44:20,357 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:44:20,357 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:44:20,357 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:44:20,359 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 23:44:20,359 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:44:20,376 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:44:20,395 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (121)] Ended with exit code 0 [2021-10-28 23:44:20,395 INFO L490 LassoAnalysis]: Using template '2-nested'. [2021-10-28 23:44:20,395 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:44:20,395 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:44:20,396 INFO L229 MonitoredProcess]: Starting monitored process 122 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:44:20,397 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (122)] Waiting until timeout for monitored process [2021-10-28 23:44:20,397 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 [2021-10-28 23:44:20,404 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:44:20,404 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:44:20,404 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:44:20,404 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:44:20,404 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2021-10-28 23:44:20,407 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2021-10-28 23:44:20,407 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:44:20,411 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:44:20,430 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (122)] Forceful destruction successful, exit code 0 [2021-10-28 23:44:20,430 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:44:20,430 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:44:20,431 INFO L229 MonitoredProcess]: Starting monitored process 123 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:44:20,431 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (123)] Waiting until timeout for monitored process [2021-10-28 23:44:20,432 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:44:20,439 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:44:20,439 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:44:20,439 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:44:20,439 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:44:20,439 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2021-10-28 23:44:20,440 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2021-10-28 23:44:20,440 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:44:20,443 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:44:20,461 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (123)] Ended with exit code 0 [2021-10-28 23:44:20,462 INFO L490 LassoAnalysis]: Using template '3-nested'. [2021-10-28 23:44:20,462 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:44:20,462 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:44:20,462 INFO L229 MonitoredProcess]: Starting monitored process 124 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:44:20,463 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (124)] Waiting until timeout for monitored process [2021-10-28 23:44:20,463 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:44:20,471 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:44:20,471 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:44:20,471 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:44:20,471 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:44:20,471 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2021-10-28 23:44:20,474 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-10-28 23:44:20,475 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:44:20,503 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:44:20,530 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (124)] Ended with exit code 0 [2021-10-28 23:44:20,530 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:44:20,531 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:44:20,531 INFO L229 MonitoredProcess]: Starting monitored process 125 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:44:20,532 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (125)] Waiting until timeout for monitored process [2021-10-28 23:44:20,532 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:44:20,540 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:44:20,540 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:44:20,540 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:44:20,540 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:44:20,540 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2021-10-28 23:44:20,541 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-10-28 23:44:20,541 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:44:20,545 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:44:20,563 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (125)] Ended with exit code 0 [2021-10-28 23:44:20,563 INFO L490 LassoAnalysis]: Using template '4-nested'. [2021-10-28 23:44:20,564 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:44:20,564 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:44:20,564 INFO L229 MonitoredProcess]: Starting monitored process 126 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:44:20,565 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (126)] Waiting until timeout for monitored process [2021-10-28 23:44:20,565 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:44:20,573 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:44:20,573 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:44:20,573 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:44:20,573 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:44:20,573 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. [2021-10-28 23:44:20,579 INFO L401 nArgumentSynthesizer]: We have 5 Motzkin's Theorem applications. [2021-10-28 23:44:20,579 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:44:20,585 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:44:20,603 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (126)] Forceful destruction successful, exit code 0 [2021-10-28 23:44:20,604 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:44:20,604 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:44:20,604 INFO L229 MonitoredProcess]: Starting monitored process 127 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:44:20,606 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (127)] Waiting until timeout for monitored process [2021-10-28 23:44:20,606 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:44:20,613 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:44:20,613 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:44:20,613 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:44:20,613 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:44:20,614 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. [2021-10-28 23:44:20,615 INFO L401 nArgumentSynthesizer]: We have 5 Motzkin's Theorem applications. [2021-10-28 23:44:20,616 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:44:20,619 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:44:20,638 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (127)] Ended with exit code 0 [2021-10-28 23:44:20,638 INFO L490 LassoAnalysis]: Using template '2-phase'. [2021-10-28 23:44:20,638 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:44:20,638 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:44:20,639 INFO L229 MonitoredProcess]: Starting monitored process 128 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:44:20,642 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (128)] Waiting until timeout for monitored process [2021-10-28 23:44:20,642 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:44:20,649 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-28 23:44:20,649 INFO L338 nArgumentSynthesizer]: Template has degree 1. [2021-10-28 23:44:20,649 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:44:20,649 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:44:20,649 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:44:20,649 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2021-10-28 23:44:20,652 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2021-10-28 23:44:20,652 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:44:20,659 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:44:20,678 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (128)] Ended with exit code 0 [2021-10-28 23:44:20,678 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:44:20,678 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:44:20,679 INFO L229 MonitoredProcess]: Starting monitored process 129 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:44:20,680 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (129)] Waiting until timeout for monitored process [2021-10-28 23:44:20,680 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:44:20,687 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-28 23:44:20,688 INFO L338 nArgumentSynthesizer]: Template has degree 1. [2021-10-28 23:44:20,688 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:44:20,688 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:44:20,688 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:44:20,688 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2021-10-28 23:44:20,689 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2021-10-28 23:44:20,689 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:44:20,693 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:44:20,712 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (129)] Ended with exit code 0 [2021-10-28 23:44:20,712 INFO L490 LassoAnalysis]: Using template '3-phase'. [2021-10-28 23:44:20,712 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:44:20,712 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:44:20,713 INFO L229 MonitoredProcess]: Starting monitored process 130 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:44:20,714 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (130)] Waiting until timeout for monitored process [2021-10-28 23:44:20,714 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:44:20,721 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-28 23:44:20,722 INFO L338 nArgumentSynthesizer]: Template has degree 2. [2021-10-28 23:44:20,722 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:44:20,722 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:44:20,722 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:44:20,722 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2021-10-28 23:44:20,725 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-10-28 23:44:20,726 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:44:20,736 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:44:20,756 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (130)] Forceful destruction successful, exit code 0 [2021-10-28 23:44:20,756 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:44:20,756 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:44:20,757 INFO L229 MonitoredProcess]: Starting monitored process 131 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:44:20,759 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:44:20,763 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (131)] Waiting until timeout for monitored process [2021-10-28 23:44:20,767 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-28 23:44:20,767 INFO L338 nArgumentSynthesizer]: Template has degree 2. [2021-10-28 23:44:20,767 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:44:20,767 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:44:20,767 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:44:20,767 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2021-10-28 23:44:20,769 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-10-28 23:44:20,769 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:44:20,775 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:44:20,794 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (131)] Forceful destruction successful, exit code 0 [2021-10-28 23:44:20,794 INFO L490 LassoAnalysis]: Using template '4-phase'. [2021-10-28 23:44:20,794 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:44:20,794 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:44:20,795 INFO L229 MonitoredProcess]: Starting monitored process 132 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:44:20,796 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (132)] Waiting until timeout for monitored process [2021-10-28 23:44:20,796 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:44:20,804 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-28 23:44:20,804 INFO L338 nArgumentSynthesizer]: Template has degree 3. [2021-10-28 23:44:20,804 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:44:20,804 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:44:20,804 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:44:20,804 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. [2021-10-28 23:44:20,809 INFO L401 nArgumentSynthesizer]: We have 5 Motzkin's Theorem applications. [2021-10-28 23:44:20,809 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:44:20,825 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:44:20,844 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (132)] Forceful destruction successful, exit code 0 [2021-10-28 23:44:20,851 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:44:20,852 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:44:20,852 INFO L229 MonitoredProcess]: Starting monitored process 133 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:44:20,853 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (133)] Waiting until timeout for monitored process [2021-10-28 23:44:20,853 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 [2021-10-28 23:44:20,861 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-28 23:44:20,861 INFO L338 nArgumentSynthesizer]: Template has degree 3. [2021-10-28 23:44:20,861 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:44:20,861 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:44:20,861 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:44:20,861 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. [2021-10-28 23:44:20,864 INFO L401 nArgumentSynthesizer]: We have 5 Motzkin's Theorem applications. [2021-10-28 23:44:20,864 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:44:20,872 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:44:20,891 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (133)] Ended with exit code 0 [2021-10-28 23:44:20,891 INFO L490 LassoAnalysis]: Using template '2-lex'. [2021-10-28 23:44:20,891 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:44:20,891 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:44:20,892 INFO L229 MonitoredProcess]: Starting monitored process 134 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:44:20,892 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (134)] Waiting until timeout for monitored process [2021-10-28 23:44:20,893 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:44:20,901 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-28 23:44:20,901 INFO L338 nArgumentSynthesizer]: Template has degree 1. [2021-10-28 23:44:20,901 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:44:20,901 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:44:20,901 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:44:20,901 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2021-10-28 23:44:20,905 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-10-28 23:44:20,905 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:44:20,911 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:44:20,930 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (134)] Forceful destruction successful, exit code 0 [2021-10-28 23:44:20,930 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:44:20,930 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:44:20,931 INFO L229 MonitoredProcess]: Starting monitored process 135 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:44:20,932 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (135)] Waiting until timeout for monitored process [2021-10-28 23:44:20,932 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:44:20,939 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-28 23:44:20,939 INFO L338 nArgumentSynthesizer]: Template has degree 1. [2021-10-28 23:44:20,939 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:44:20,939 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:44:20,939 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:44:20,940 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2021-10-28 23:44:20,941 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-10-28 23:44:20,941 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:44:20,945 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:44:20,964 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (135)] Forceful destruction successful, exit code 0 [2021-10-28 23:44:20,964 INFO L490 LassoAnalysis]: Using template '3-lex'. [2021-10-28 23:44:20,964 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:44:20,964 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:44:20,965 INFO L229 MonitoredProcess]: Starting monitored process 136 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:44:20,966 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (136)] Waiting until timeout for monitored process [2021-10-28 23:44:20,966 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:44:20,974 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-28 23:44:20,974 INFO L338 nArgumentSynthesizer]: Template has degree 3. [2021-10-28 23:44:20,974 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:44:20,974 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:44:20,974 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:44:20,974 INFO L205 nArgumentSynthesizer]: 6 template conjuncts. [2021-10-28 23:44:20,979 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 23:44:20,979 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:44:20,989 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:44:21,008 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (136)] Ended with exit code 0 [2021-10-28 23:44:21,008 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:44:21,008 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:44:21,010 INFO L229 MonitoredProcess]: Starting monitored process 137 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:44:21,010 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (137)] Waiting until timeout for monitored process [2021-10-28 23:44:21,011 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:44:21,018 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-28 23:44:21,018 INFO L338 nArgumentSynthesizer]: Template has degree 3. [2021-10-28 23:44:21,018 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:44:21,018 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:44:21,018 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:44:21,018 INFO L205 nArgumentSynthesizer]: 6 template conjuncts. [2021-10-28 23:44:21,022 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 23:44:21,022 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:44:21,028 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:44:21,047 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (137)] Forceful destruction successful, exit code 0 [2021-10-28 23:44:21,047 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:44:21,047 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-10-28 23:44:21,047 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2021-10-28 23:44:21,048 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) [2021-10-28 23:44:21,215 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:44:21,215 INFO L93 Difference]: Finished difference Result 108 states and 110 transitions. [2021-10-28 23:44:21,215 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-28 23:44:21,215 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 108 states and 110 transitions. [2021-10-28 23:44:21,216 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 13 [2021-10-28 23:44:21,217 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 108 states to 108 states and 110 transitions. [2021-10-28 23:44:21,217 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 108 [2021-10-28 23:44:21,217 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 108 [2021-10-28 23:44:21,217 INFO L73 IsDeterministic]: Start isDeterministic. Operand 108 states and 110 transitions. [2021-10-28 23:44:21,217 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-28 23:44:21,217 INFO L681 BuchiCegarLoop]: Abstraction has 108 states and 110 transitions. [2021-10-28 23:44:21,217 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 108 states and 110 transitions. [2021-10-28 23:44:21,219 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 108 to 80. [2021-10-28 23:44:21,219 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) [2021-10-28 23:44:21,219 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 80 states and 82 transitions. [2021-10-28 23:44:21,219 INFO L704 BuchiCegarLoop]: Abstraction has 80 states and 82 transitions. [2021-10-28 23:44:21,219 INFO L587 BuchiCegarLoop]: Abstraction has 80 states and 82 transitions. [2021-10-28 23:44:21,219 INFO L425 BuchiCegarLoop]: ======== Iteration 31============ [2021-10-28 23:44:21,220 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 80 states and 82 transitions. [2021-10-28 23:44:21,220 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 13 [2021-10-28 23:44:21,220 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 23:44:21,220 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 23:44:21,221 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] [2021-10-28 23:44:21,221 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:44:21,221 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 [2021-10-28 23:44:21,221 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 [2021-10-28 23:44:21,221 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:44:21,221 INFO L85 PathProgramCache]: Analyzing trace with hash -151906736, now seen corresponding path program 1 times [2021-10-28 23:44:21,221 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:44:21,221 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [981086705] [2021-10-28 23:44:21,222 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:44:21,222 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:44:21,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:44:21,245 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 23:44:21,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:44:21,289 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 23:44:21,290 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:44:21,290 INFO L85 PathProgramCache]: Analyzing trace with hash -1233229496, now seen corresponding path program 5 times [2021-10-28 23:44:21,290 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:44:21,290 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1057817198] [2021-10-28 23:44:21,290 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:44:21,290 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:44:21,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:44:21,296 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 23:44:21,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:44:21,299 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 23:44:21,300 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:44:21,300 INFO L85 PathProgramCache]: Analyzing trace with hash -611234983, now seen corresponding path program 1 times [2021-10-28 23:44:21,300 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:44:21,300 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [437785211] [2021-10-28 23:44:21,300 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:44:21,300 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:44:21,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:44:21,528 INFO L134 CoverageAnalysis]: Checked inductivity of 122 backedges. 83 proven. 12 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2021-10-28 23:44:21,528 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:44:21,528 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [437785211] [2021-10-28 23:44:21,528 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [437785211] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 23:44:21,528 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [645562303] [2021-10-28 23:44:21,528 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:44:21,528 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 23:44:21,529 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:44:21,529 INFO L229 MonitoredProcess]: Starting monitored process 138 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 23:44:21,530 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (138)] Waiting until timeout for monitored process [2021-10-28 23:44:21,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:44:21,938 INFO L263 TraceCheckSpWp]: Trace formula consists of 197 conjuncts, 6 conjunts are in the unsatisfiable core [2021-10-28 23:44:21,939 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:44:22,553 INFO L134 CoverageAnalysis]: Checked inductivity of 122 backedges. 91 proven. 4 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2021-10-28 23:44:22,553 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [645562303] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 23:44:22,553 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-28 23:44:22,553 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 7] total 12 [2021-10-28 23:44:22,554 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [547234441] [2021-10-28 23:44:22,755 INFO L210 LassoAnalysis]: Preferences: [2021-10-28 23:44:22,755 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-28 23:44:22,755 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-28 23:44:22,755 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-28 23:44:22,755 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-10-28 23:44:22,755 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:44:22,756 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-28 23:44:22,756 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-28 23:44:22,756 INFO L133 ssoRankerPreferences]: Filename of dumped script: byte_add_1-1.i_Iteration31_Loop [2021-10-28 23:44:22,756 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-28 23:44:22,756 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-28 23:44:22,757 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:44:22,767 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:44:23,166 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-28 23:44:23,166 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-10-28 23:44:23,166 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:44:23,166 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:44:23,167 INFO L229 MonitoredProcess]: Starting monitored process 139 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:44:23,168 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (139)] Waiting until timeout for monitored process [2021-10-28 23:44:23,168 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-28 23:44:23,168 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 23:44:23,183 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-28 23:44:23,183 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: [] [2021-10-28 23:44:23,202 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (139)] Forceful destruction successful, exit code 0 [2021-10-28 23:44:23,202 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:44:23,202 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:44:23,203 INFO L229 MonitoredProcess]: Starting monitored process 140 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:44:23,204 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (140)] Waiting until timeout for monitored process [2021-10-28 23:44:23,204 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-28 23:44:23,204 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 23:44:23,265 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (140)] Forceful destruction successful, exit code 0 [2021-10-28 23:44:23,266 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:44:23,266 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:44:23,266 INFO L229 MonitoredProcess]: Starting monitored process 141 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:44:23,267 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (141)] Waiting until timeout for monitored process [2021-10-28 23:44:23,267 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-10-28 23:44:23,267 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 23:44:25,345 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-10-28 23:44:25,348 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (141)] Ended with exit code 0 [2021-10-28 23:44:25,348 INFO L210 LassoAnalysis]: Preferences: [2021-10-28 23:44:25,348 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-28 23:44:25,348 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-28 23:44:25,348 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-28 23:44:25,348 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-28 23:44:25,348 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:44:25,348 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-28 23:44:25,348 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-28 23:44:25,348 INFO L133 ssoRankerPreferences]: Filename of dumped script: byte_add_1-1.i_Iteration31_Loop [2021-10-28 23:44:25,348 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-28 23:44:25,349 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-28 23:44:25,349 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:44:25,377 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:44:25,655 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-28 23:44:25,655 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-10-28 23:44:25,655 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:44:25,655 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:44:25,656 INFO L229 MonitoredProcess]: Starting monitored process 142 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:44:25,656 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (142)] Waiting until timeout for monitored process [2021-10-28 23:44:25,657 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:44:25,664 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:44:25,664 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:44:25,664 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:44:25,664 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:44:25,664 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:44:25,666 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 23:44:25,666 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:44:25,668 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:44:25,687 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (142)] Ended with exit code 0 [2021-10-28 23:44:25,687 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:44:25,687 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:44:25,688 INFO L229 MonitoredProcess]: Starting monitored process 143 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:44:25,688 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (143)] Waiting until timeout for monitored process [2021-10-28 23:44:25,689 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:44:25,695 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:44:25,696 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:44:25,696 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:44:25,696 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:44:25,696 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:44:25,697 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 23:44:25,697 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:44:25,699 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:44:25,717 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (143)] Ended with exit code 0 [2021-10-28 23:44:25,717 INFO L490 LassoAnalysis]: Using template '2-nested'. [2021-10-28 23:44:25,717 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:44:25,717 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:44:25,718 INFO L229 MonitoredProcess]: Starting monitored process 144 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:44:25,719 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (144)] Waiting until timeout for monitored process [2021-10-28 23:44:25,719 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:44:25,726 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:44:25,726 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:44:25,726 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:44:25,726 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:44:25,726 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2021-10-28 23:44:25,729 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2021-10-28 23:44:25,729 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:44:25,733 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:44:25,752 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (144)] Ended with exit code 0 [2021-10-28 23:44:25,752 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:44:25,752 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:44:25,754 INFO L229 MonitoredProcess]: Starting monitored process 145 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:44:25,754 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (145)] Waiting until timeout for monitored process [2021-10-28 23:44:25,755 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:44:25,761 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:44:25,762 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:44:25,762 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:44:25,762 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:44:25,762 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2021-10-28 23:44:25,763 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2021-10-28 23:44:25,763 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:44:25,766 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:44:25,784 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (145)] Forceful destruction successful, exit code 0 [2021-10-28 23:44:25,785 INFO L490 LassoAnalysis]: Using template '3-nested'. [2021-10-28 23:44:25,786 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:44:25,786 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:44:25,789 INFO L229 MonitoredProcess]: Starting monitored process 146 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:44:25,791 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (146)] Waiting until timeout for monitored process [2021-10-28 23:44:25,791 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:44:25,798 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:44:25,798 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:44:25,798 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:44:25,798 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:44:25,799 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2021-10-28 23:44:25,802 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-10-28 23:44:25,802 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:44:25,807 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:44:25,825 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (146)] Forceful destruction successful, exit code 0 [2021-10-28 23:44:25,825 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:44:25,825 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:44:25,826 INFO L229 MonitoredProcess]: Starting monitored process 147 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:44:25,827 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (147)] Waiting until timeout for monitored process [2021-10-28 23:44:25,827 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:44:25,834 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:44:25,834 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:44:25,834 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:44:25,834 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:44:25,834 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2021-10-28 23:44:25,836 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-10-28 23:44:25,836 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:44:25,839 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:44:25,858 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (147)] Ended with exit code 0 [2021-10-28 23:44:25,858 INFO L490 LassoAnalysis]: Using template '4-nested'. [2021-10-28 23:44:25,858 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:44:25,858 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:44:25,859 INFO L229 MonitoredProcess]: Starting monitored process 148 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:44:25,859 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (148)] Waiting until timeout for monitored process [2021-10-28 23:44:25,860 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:44:25,867 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:44:25,867 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:44:25,867 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:44:25,867 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:44:25,867 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. [2021-10-28 23:44:25,871 INFO L401 nArgumentSynthesizer]: We have 5 Motzkin's Theorem applications. [2021-10-28 23:44:25,871 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:44:25,877 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:44:25,896 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (148)] Forceful destruction successful, exit code 0 [2021-10-28 23:44:25,896 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:44:25,896 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:44:25,897 INFO L229 MonitoredProcess]: Starting monitored process 149 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:44:25,897 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (149)] Waiting until timeout for monitored process [2021-10-28 23:44:25,898 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:44:25,905 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:44:25,905 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:44:25,905 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:44:25,905 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:44:25,905 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. [2021-10-28 23:44:25,907 INFO L401 nArgumentSynthesizer]: We have 5 Motzkin's Theorem applications. [2021-10-28 23:44:25,907 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:44:25,911 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:44:25,932 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (149)] Ended with exit code 0 [2021-10-28 23:44:25,932 INFO L490 LassoAnalysis]: Using template '2-phase'. [2021-10-28 23:44:25,932 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:44:25,932 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:44:25,933 INFO L229 MonitoredProcess]: Starting monitored process 150 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:44:25,934 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (150)] Waiting until timeout for monitored process [2021-10-28 23:44:25,934 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:44:25,941 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-28 23:44:25,941 INFO L338 nArgumentSynthesizer]: Template has degree 1. [2021-10-28 23:44:25,941 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:44:25,941 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:44:25,941 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:44:25,941 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2021-10-28 23:44:25,944 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2021-10-28 23:44:25,944 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:44:25,950 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:44:25,969 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (150)] Ended with exit code 0 [2021-10-28 23:44:25,969 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:44:25,969 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:44:25,970 INFO L229 MonitoredProcess]: Starting monitored process 151 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:44:25,970 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (151)] Waiting until timeout for monitored process [2021-10-28 23:44:25,971 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:44:25,977 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-28 23:44:25,978 INFO L338 nArgumentSynthesizer]: Template has degree 1. [2021-10-28 23:44:25,978 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:44:25,978 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:44:25,978 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:44:25,978 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2021-10-28 23:44:25,979 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2021-10-28 23:44:25,979 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:44:25,983 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:44:26,002 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (151)] Ended with exit code 0 [2021-10-28 23:44:26,002 INFO L490 LassoAnalysis]: Using template '3-phase'. [2021-10-28 23:44:26,002 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:44:26,002 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:44:26,003 INFO L229 MonitoredProcess]: Starting monitored process 152 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:44:26,003 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (152)] Waiting until timeout for monitored process [2021-10-28 23:44:26,004 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:44:26,011 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-28 23:44:26,011 INFO L338 nArgumentSynthesizer]: Template has degree 2. [2021-10-28 23:44:26,011 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:44:26,011 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:44:26,011 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:44:26,011 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2021-10-28 23:44:26,016 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-10-28 23:44:26,017 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:44:26,028 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:44:26,046 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (152)] Forceful destruction successful, exit code 0 [2021-10-28 23:44:26,046 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:44:26,046 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:44:26,047 INFO L229 MonitoredProcess]: Starting monitored process 153 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:44:26,048 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (153)] Waiting until timeout for monitored process [2021-10-28 23:44:26,048 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 [2021-10-28 23:44:26,055 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-28 23:44:26,055 INFO L338 nArgumentSynthesizer]: Template has degree 2. [2021-10-28 23:44:26,055 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:44:26,055 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:44:26,055 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:44:26,056 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2021-10-28 23:44:26,057 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-10-28 23:44:26,057 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:44:26,063 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:44:26,081 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (153)] Forceful destruction successful, exit code 0 [2021-10-28 23:44:26,081 INFO L490 LassoAnalysis]: Using template '4-phase'. [2021-10-28 23:44:26,082 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:44:26,082 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:44:26,082 INFO L229 MonitoredProcess]: Starting monitored process 154 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:44:26,083 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (154)] Waiting until timeout for monitored process [2021-10-28 23:44:26,083 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:44:26,091 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-28 23:44:26,091 INFO L338 nArgumentSynthesizer]: Template has degree 3. [2021-10-28 23:44:26,091 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:44:26,091 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:44:26,091 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:44:26,091 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. [2021-10-28 23:44:26,098 INFO L401 nArgumentSynthesizer]: We have 5 Motzkin's Theorem applications. [2021-10-28 23:44:26,098 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:44:26,116 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:44:26,134 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (154)] Ended with exit code 0 [2021-10-28 23:44:26,135 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:44:26,135 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:44:26,135 INFO L229 MonitoredProcess]: Starting monitored process 155 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:44:26,136 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (155)] Waiting until timeout for monitored process [2021-10-28 23:44:26,136 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:44:26,144 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-28 23:44:26,144 INFO L338 nArgumentSynthesizer]: Template has degree 3. [2021-10-28 23:44:26,144 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:44:26,144 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:44:26,144 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:44:26,144 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. [2021-10-28 23:44:26,147 INFO L401 nArgumentSynthesizer]: We have 5 Motzkin's Theorem applications. [2021-10-28 23:44:26,147 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:44:26,155 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:44:26,173 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (155)] Forceful destruction successful, exit code 0 [2021-10-28 23:44:26,173 INFO L490 LassoAnalysis]: Using template '2-lex'. [2021-10-28 23:44:26,173 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:44:26,174 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:44:26,174 INFO L229 MonitoredProcess]: Starting monitored process 156 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:44:26,175 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (156)] Waiting until timeout for monitored process [2021-10-28 23:44:26,175 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:44:26,182 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-28 23:44:26,182 INFO L338 nArgumentSynthesizer]: Template has degree 1. [2021-10-28 23:44:26,182 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:44:26,183 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:44:26,183 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:44:26,183 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2021-10-28 23:44:26,186 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-10-28 23:44:26,186 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:44:26,192 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:44:26,211 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (156)] Ended with exit code 0 [2021-10-28 23:44:26,211 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:44:26,211 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:44:26,212 INFO L229 MonitoredProcess]: Starting monitored process 157 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:44:26,212 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (157)] Waiting until timeout for monitored process [2021-10-28 23:44:26,213 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:44:26,220 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-28 23:44:26,220 INFO L338 nArgumentSynthesizer]: Template has degree 1. [2021-10-28 23:44:26,220 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:44:26,220 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:44:26,220 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:44:26,220 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2021-10-28 23:44:26,222 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-10-28 23:44:26,222 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:44:26,225 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:44:26,244 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (157)] Forceful destruction successful, exit code 0 [2021-10-28 23:44:26,248 INFO L490 LassoAnalysis]: Using template '3-lex'. [2021-10-28 23:44:26,248 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:44:26,248 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:44:26,262 INFO L229 MonitoredProcess]: Starting monitored process 158 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:44:26,263 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:44:26,272 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-28 23:44:26,272 INFO L338 nArgumentSynthesizer]: Template has degree 3. [2021-10-28 23:44:26,272 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:44:26,272 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:44:26,272 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:44:26,273 INFO L205 nArgumentSynthesizer]: 6 template conjuncts. [2021-10-28 23:44:26,279 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 23:44:26,279 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:44:26,286 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (158)] Waiting until timeout for monitored process [2021-10-28 23:44:26,299 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:44:26,331 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (158)] Forceful destruction successful, exit code 0 [2021-10-28 23:44:26,331 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:44:26,331 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:44:26,332 INFO L229 MonitoredProcess]: Starting monitored process 159 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:44:26,334 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:44:26,343 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-28 23:44:26,343 INFO L338 nArgumentSynthesizer]: Template has degree 3. [2021-10-28 23:44:26,343 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:44:26,343 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:44:26,343 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:44:26,343 INFO L205 nArgumentSynthesizer]: 6 template conjuncts. [2021-10-28 23:44:26,347 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 23:44:26,347 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:44:26,361 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:44:26,361 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (159)] Waiting until timeout for monitored process [2021-10-28 23:44:26,412 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (159)] Forceful destruction successful, exit code 0 [2021-10-28 23:44:26,412 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:44:26,412 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-10-28 23:44:26,413 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=99, Unknown=0, NotChecked=0, Total=132 [2021-10-28 23:44:26,413 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) [2021-10-28 23:44:27,270 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:44:27,270 INFO L93 Difference]: Finished difference Result 71 states and 72 transitions. [2021-10-28 23:44:27,270 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-10-28 23:44:27,270 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 71 states and 72 transitions. [2021-10-28 23:44:27,270 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-10-28 23:44:27,271 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 71 states to 0 states and 0 transitions. [2021-10-28 23:44:27,271 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2021-10-28 23:44:27,271 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2021-10-28 23:44:27,271 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2021-10-28 23:44:27,271 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-28 23:44:27,271 INFO L681 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-28 23:44:27,271 INFO L704 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-28 23:44:27,271 INFO L587 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-28 23:44:27,271 INFO L425 BuchiCegarLoop]: ======== Iteration 32============ [2021-10-28 23:44:27,271 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2021-10-28 23:44:27,271 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-10-28 23:44:27,271 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2021-10-28 23:44:27,276 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 28.10 11:44:27 BoogieIcfgContainer [2021-10-28 23:44:27,276 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-10-28 23:44:27,277 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-28 23:44:27,277 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-28 23:44:27,277 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-28 23:44:27,277 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 11:41:11" (3/4) ... [2021-10-28 23:44:27,280 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-10-28 23:44:27,280 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-28 23:44:27,281 INFO L168 Benchmark]: Toolchain (without parser) took 196435.63 ms. Allocated memory was 88.1 MB in the beginning and 224.4 MB in the end (delta: 136.3 MB). Free memory was 50.7 MB in the beginning and 50.7 MB in the end (delta: -32.6 kB). Peak memory consumption was 136.2 MB. Max. memory is 16.1 GB. [2021-10-28 23:44:27,281 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 88.1 MB. Free memory is still 66.9 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 23:44:27,282 INFO L168 Benchmark]: CACSL2BoogieTranslator took 326.61 ms. Allocated memory was 88.1 MB in the beginning and 121.6 MB in the end (delta: 33.6 MB). Free memory was 50.4 MB in the beginning and 95.9 MB in the end (delta: -45.4 MB). Peak memory consumption was 5.8 MB. Max. memory is 16.1 GB. [2021-10-28 23:44:27,296 INFO L168 Benchmark]: Boogie Procedure Inliner took 41.46 ms. Allocated memory is still 121.6 MB. Free memory was 95.9 MB in the beginning and 94.1 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-28 23:44:27,297 INFO L168 Benchmark]: Boogie Preprocessor took 30.97 ms. Allocated memory is still 121.6 MB. Free memory was 94.1 MB in the beginning and 92.5 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-28 23:44:27,297 INFO L168 Benchmark]: RCFGBuilder took 376.96 ms. Allocated memory is still 121.6 MB. Free memory was 92.5 MB in the beginning and 80.0 MB in the end (delta: 12.6 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2021-10-28 23:44:27,298 INFO L168 Benchmark]: BuchiAutomizer took 195650.64 ms. Allocated memory was 121.6 MB in the beginning and 224.4 MB in the end (delta: 102.8 MB). Free memory was 80.0 MB in the beginning and 51.0 MB in the end (delta: 28.9 MB). Peak memory consumption was 132.4 MB. Max. memory is 16.1 GB. [2021-10-28 23:44:27,298 INFO L168 Benchmark]: Witness Printer took 3.35 ms. Allocated memory is still 224.4 MB. Free memory was 51.0 MB in the beginning and 50.7 MB in the end (delta: 313.5 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 23:44:27,300 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 88.1 MB. Free memory is still 66.9 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 326.61 ms. Allocated memory was 88.1 MB in the beginning and 121.6 MB in the end (delta: 33.6 MB). Free memory was 50.4 MB in the beginning and 95.9 MB in the end (delta: -45.4 MB). Peak memory consumption was 5.8 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 41.46 ms. Allocated memory is still 121.6 MB. Free memory was 95.9 MB in the beginning and 94.1 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 30.97 ms. Allocated memory is still 121.6 MB. Free memory was 94.1 MB in the beginning and 92.5 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 376.96 ms. Allocated memory is still 121.6 MB. Free memory was 92.5 MB in the beginning and 80.0 MB in the end (delta: 12.6 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 195650.64 ms. Allocated memory was 121.6 MB in the beginning and 224.4 MB in the end (delta: 102.8 MB). Free memory was 80.0 MB in the beginning and 51.0 MB in the end (delta: 28.9 MB). Peak memory consumption was 132.4 MB. Max. memory is 16.1 GB. * Witness Printer took 3.35 ms. Allocated memory is still 224.4 MB. Free memory was 51.0 MB in the beginning and 50.7 MB in the end (delta: 313.5 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 195.6s and 32 iterations. TraceHistogramMax:7. Analysis of lassos took 54.2s. Construction of modules took 131.8s. Büchi inclusion checks took 8.5s. Highest rank in rank-based complementation 0. Minimization of det autom 31. Minimization of nondet autom 0. Automata minimization 0.3s 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, 8605 SolverSat, 552 SolverUnsat, 8 SolverUnknown, 0 SolverNotchecked, 131.8s 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: 30ms VariablesStem: 0 VariablesLoop: 5 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 0 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 3 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 7 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 10.6s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2021-10-28 23:44:27,343 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (138)] Ended with exit code 0 [2021-10-28 23:44:27,529 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (117)] Ended with exit code 0 [2021-10-28 23:44:27,746 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (96)] Ended with exit code 0 [2021-10-28 23:44:27,929 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (75)] Ended with exit code 0 [2021-10-28 23:44:28,145 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (54)] Ended with exit code 0 [2021-10-28 23:44:28,329 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Ended with exit code 0 [2021-10-28 23:44:28,546 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2021-10-28 23:44:28,746 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2021-10-28 23:44:28,946 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2021-10-28 23:44:29,146 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2021-10-28 23:44:29,346 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2021-10-28 23:44:29,547 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2021-10-28 23:44:29,746 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2021-10-28 23:44:29,946 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2021-10-28 23:44:30,147 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-10-28 23:44:30,390 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c35475-3a6e-41a2-b58a-0d8d7f551643/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...