./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/reducercommutativity/sep05-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version e943c265 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37e88381-15a0-4ff0-b371-cc5a4426086f/bin/uautomizer-j4sWxH34Be/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37e88381-15a0-4ff0-b371-cc5a4426086f/bin/uautomizer-j4sWxH34Be/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37e88381-15a0-4ff0-b371-cc5a4426086f/bin/uautomizer-j4sWxH34Be/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37e88381-15a0-4ff0-b371-cc5a4426086f/bin/uautomizer-j4sWxH34Be/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/reducercommutativity/sep05-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37e88381-15a0-4ff0-b371-cc5a4426086f/bin/uautomizer-j4sWxH34Be/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37e88381-15a0-4ff0-b371-cc5a4426086f/bin/uautomizer-j4sWxH34Be --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash ac50477087b7e2b9c80860ad42d4d46d99ddf32e797cee205c21d5ff44f08ec3 ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.1-dev-e943c26 [2021-10-21 19:31:13,508 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-21 19:31:13,524 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-21 19:31:13,576 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-21 19:31:13,577 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-21 19:31:13,579 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-21 19:31:13,581 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-21 19:31:13,584 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-21 19:31:13,586 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-21 19:31:13,588 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-21 19:31:13,589 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-21 19:31:13,591 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-21 19:31:13,591 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-21 19:31:13,593 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-21 19:31:13,595 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-21 19:31:13,597 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-21 19:31:13,598 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-21 19:31:13,600 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-21 19:31:13,602 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-21 19:31:13,605 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-21 19:31:13,608 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-21 19:31:13,618 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-21 19:31:13,620 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-21 19:31:13,621 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-21 19:31:13,626 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-21 19:31:13,627 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-21 19:31:13,627 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-21 19:31:13,628 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-21 19:31:13,629 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-21 19:31:13,630 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-21 19:31:13,631 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-21 19:31:13,632 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-21 19:31:13,633 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-21 19:31:13,634 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-21 19:31:13,636 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-21 19:31:13,636 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-21 19:31:13,637 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-21 19:31:13,638 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-21 19:31:13,638 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-21 19:31:13,639 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-21 19:31:13,640 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-21 19:31:13,642 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37e88381-15a0-4ff0-b371-cc5a4426086f/bin/uautomizer-j4sWxH34Be/config/svcomp-Termination-32bit-Automizer_Default.epf [2021-10-21 19:31:13,696 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-21 19:31:13,702 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-21 19:31:13,703 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-21 19:31:13,703 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-21 19:31:13,704 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-21 19:31:13,705 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-21 19:31:13,705 INFO L138 SettingsManager]: * Use SBE=true [2021-10-21 19:31:13,706 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-10-21 19:31:13,706 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-10-21 19:31:13,706 INFO L138 SettingsManager]: * Use old map elimination=false [2021-10-21 19:31:13,707 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-10-21 19:31:13,708 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-10-21 19:31:13,708 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-10-21 19:31:13,708 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-21 19:31:13,709 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-21 19:31:13,709 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-21 19:31:13,709 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-21 19:31:13,709 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-21 19:31:13,710 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-21 19:31:13,710 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-10-21 19:31:13,710 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-10-21 19:31:13,710 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-10-21 19:31:13,711 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-21 19:31:13,711 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-21 19:31:13,711 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-10-21 19:31:13,711 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-21 19:31:13,713 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-10-21 19:31:13,714 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-21 19:31:13,714 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-21 19:31:13,714 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-21 19:31:13,714 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-21 19:31:13,715 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-21 19:31:13,717 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-10-21 19:31:13,717 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_37e88381-15a0-4ff0-b371-cc5a4426086f/bin/uautomizer-j4sWxH34Be/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37e88381-15a0-4ff0-b371-cc5a4426086f/bin/uautomizer-j4sWxH34Be Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ac50477087b7e2b9c80860ad42d4d46d99ddf32e797cee205c21d5ff44f08ec3 [2021-10-21 19:31:14,056 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-21 19:31:14,084 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-21 19:31:14,087 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-21 19:31:14,088 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-21 19:31:14,089 INFO L275 PluginConnector]: CDTParser initialized [2021-10-21 19:31:14,090 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37e88381-15a0-4ff0-b371-cc5a4426086f/bin/uautomizer-j4sWxH34Be/../../sv-benchmarks/c/reducercommutativity/sep05-1.i [2021-10-21 19:31:14,166 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37e88381-15a0-4ff0-b371-cc5a4426086f/bin/uautomizer-j4sWxH34Be/data/1a439c120/e8a1fce3779d47e598c5f084af1b481e/FLAG4ca1bf844 [2021-10-21 19:31:14,721 INFO L306 CDTParser]: Found 1 translation units. [2021-10-21 19:31:14,723 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37e88381-15a0-4ff0-b371-cc5a4426086f/sv-benchmarks/c/reducercommutativity/sep05-1.i [2021-10-21 19:31:14,737 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37e88381-15a0-4ff0-b371-cc5a4426086f/bin/uautomizer-j4sWxH34Be/data/1a439c120/e8a1fce3779d47e598c5f084af1b481e/FLAG4ca1bf844 [2021-10-21 19:31:15,051 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37e88381-15a0-4ff0-b371-cc5a4426086f/bin/uautomizer-j4sWxH34Be/data/1a439c120/e8a1fce3779d47e598c5f084af1b481e [2021-10-21 19:31:15,053 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-21 19:31:15,055 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-21 19:31:15,057 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-21 19:31:15,057 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-21 19:31:15,062 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-21 19:31:15,063 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.10 07:31:15" (1/1) ... [2021-10-21 19:31:15,064 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@397ec849 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:31:15, skipping insertion in model container [2021-10-21 19:31:15,064 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.10 07:31:15" (1/1) ... [2021-10-21 19:31:15,073 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-21 19:31:15,091 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-21 19:31:15,316 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_37e88381-15a0-4ff0-b371-cc5a4426086f/sv-benchmarks/c/reducercommutativity/sep05-1.i[1287,1300] [2021-10-21 19:31:15,317 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-21 19:31:15,327 INFO L203 MainTranslator]: Completed pre-run [2021-10-21 19:31:15,351 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_37e88381-15a0-4ff0-b371-cc5a4426086f/sv-benchmarks/c/reducercommutativity/sep05-1.i[1287,1300] [2021-10-21 19:31:15,353 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-21 19:31:15,369 INFO L208 MainTranslator]: Completed translation [2021-10-21 19:31:15,370 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:31:15 WrapperNode [2021-10-21 19:31:15,370 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-21 19:31:15,371 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-21 19:31:15,371 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-21 19:31:15,372 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-21 19:31:15,380 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:31:15" (1/1) ... [2021-10-21 19:31:15,388 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:31:15" (1/1) ... [2021-10-21 19:31:15,418 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-21 19:31:15,419 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-21 19:31:15,420 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-21 19:31:15,420 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-21 19:31:15,429 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:31:15" (1/1) ... [2021-10-21 19:31:15,430 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:31:15" (1/1) ... [2021-10-21 19:31:15,433 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:31:15" (1/1) ... [2021-10-21 19:31:15,434 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:31:15" (1/1) ... [2021-10-21 19:31:15,442 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:31:15" (1/1) ... [2021-10-21 19:31:15,447 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:31:15" (1/1) ... [2021-10-21 19:31:15,450 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:31:15" (1/1) ... [2021-10-21 19:31:15,453 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-21 19:31:15,454 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-21 19:31:15,454 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-21 19:31:15,455 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-21 19:31:15,456 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:31:15" (1/1) ... [2021-10-21 19:31:15,465 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:31:15,479 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37e88381-15a0-4ff0-b371-cc5a4426086f/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:31:15,507 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37e88381-15a0-4ff0-b371-cc5a4426086f/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:31:15,523 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37e88381-15a0-4ff0-b371-cc5a4426086f/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-10-21 19:31:15,559 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-21 19:31:15,559 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-21 19:31:15,559 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-10-21 19:31:15,559 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-21 19:31:15,560 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-21 19:31:15,560 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-10-21 19:31:15,560 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-21 19:31:15,871 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-21 19:31:15,871 INFO L299 CfgBuilder]: Removed 15 assume(true) statements. [2021-10-21 19:31:15,873 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 07:31:15 BoogieIcfgContainer [2021-10-21 19:31:15,874 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-21 19:31:15,875 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-10-21 19:31:15,875 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-10-21 19:31:15,879 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-10-21 19:31:15,880 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-21 19:31:15,880 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 21.10 07:31:15" (1/3) ... [2021-10-21 19:31:15,882 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@11b9ceaa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 21.10 07:31:15, skipping insertion in model container [2021-10-21 19:31:15,882 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-21 19:31:15,882 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:31:15" (2/3) ... [2021-10-21 19:31:15,883 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@11b9ceaa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 21.10 07:31:15, skipping insertion in model container [2021-10-21 19:31:15,883 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-21 19:31:15,884 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 07:31:15" (3/3) ... [2021-10-21 19:31:15,885 INFO L389 chiAutomizerObserver]: Analyzing ICFG sep05-1.i [2021-10-21 19:31:15,938 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-10-21 19:31:15,938 INFO L360 BuchiCegarLoop]: Hoare is false [2021-10-21 19:31:15,938 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-10-21 19:31:15,939 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-10-21 19:31:15,939 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-10-21 19:31:15,939 INFO L364 BuchiCegarLoop]: Difference is false [2021-10-21 19:31:15,939 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-10-21 19:31:15,940 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-10-21 19:31:15,957 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 28 states, 27 states have (on average 1.5185185185185186) internal successors, (41), 27 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:31:15,987 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 13 [2021-10-21 19:31:16,000 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-21 19:31:16,000 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-21 19:31:16,020 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2021-10-21 19:31:16,020 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-10-21 19:31:16,021 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-10-21 19:31:16,021 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 28 states, 27 states have (on average 1.5185185185185186) internal successors, (41), 27 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:31:16,024 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 13 [2021-10-21 19:31:16,025 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-21 19:31:16,025 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-21 19:31:16,025 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2021-10-21 19:31:16,026 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-10-21 19:31:16,034 INFO L791 eck$LassoCheckResult]: Stem: 19#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(10); 6#L-1true havoc main_#res;havoc main_#t~nondet8, main_#t~post7, main_~i~1, main_#t~ret9, main_#t~mem10, main_#t~mem11, main_#t~ret12, main_#t~mem13, main_#t~mem15, main_#t~post14, main_~i~2, main_#t~ret16, main_~#x~0.base, main_~#x~0.offset, main_~temp~0, main_~ret~1, main_~ret2~0, main_~ret5~0;call main_~#x~0.base, main_~#x~0.offset := #Ultimate.allocOnStack(20);havoc main_~temp~0;havoc main_~ret~1;havoc main_~ret2~0;havoc main_~ret5~0;main_~i~1 := 0; 27#L37-3true [2021-10-21 19:31:16,034 INFO L793 eck$LassoCheckResult]: Loop: 27#L37-3true assume !!(main_~i~1 < 5);call write~int(main_#t~nondet8, main_~#x~0.base, main_~#x~0.offset + 4 * main_~i~1, 4);havoc main_#t~nondet8; 18#L37-2true main_#t~post7 := main_~i~1;main_~i~1 := 1 + main_#t~post7;havoc main_#t~post7; 27#L37-3true [2021-10-21 19:31:16,040 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:31:16,041 INFO L82 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2021-10-21 19:31:16,052 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:31:16,052 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [652393121] [2021-10-21 19:31:16,053 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:31:16,054 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:31:16,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:31:16,165 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 19:31:16,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:31:16,206 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 19:31:16,209 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:31:16,210 INFO L82 PathProgramCache]: Analyzing trace with hash 1283, now seen corresponding path program 1 times [2021-10-21 19:31:16,210 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:31:16,211 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1413574036] [2021-10-21 19:31:16,211 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:31:16,211 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:31:16,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:31:16,220 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 19:31:16,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:31:16,230 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 19:31:16,232 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:31:16,233 INFO L82 PathProgramCache]: Analyzing trace with hash 925765, now seen corresponding path program 1 times [2021-10-21 19:31:16,233 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:31:16,234 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1670642973] [2021-10-21 19:31:16,234 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:31:16,234 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:31:16,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:31:16,259 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 19:31:16,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:31:16,290 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 19:31:16,974 INFO L210 LassoAnalysis]: Preferences: [2021-10-21 19:31:16,975 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-21 19:31:16,975 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-21 19:31:16,975 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-21 19:31:16,975 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-21 19:31:16,976 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:31:16,976 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-21 19:31:16,977 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-21 19:31:16,977 INFO L133 ssoRankerPreferences]: Filename of dumped script: sep05-1.i_Iteration1_Lasso [2021-10-21 19:31:16,977 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-21 19:31:16,978 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-21 19:31:17,013 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:31:17,230 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:31:17,234 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:31:17,238 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:31:17,245 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:31:17,249 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:31:17,252 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:31:17,257 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:31:17,262 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:31:17,265 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:31:17,268 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:31:17,273 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:31:17,276 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:31:17,280 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:31:17,283 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:31:17,290 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:31:17,293 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:31:17,296 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:31:17,300 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:31:17,604 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-21 19:31:17,609 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-10-21 19:31:17,611 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:31:17,612 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37e88381-15a0-4ff0-b371-cc5a4426086f/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:31:17,618 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37e88381-15a0-4ff0-b371-cc5a4426086f/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:31:17,630 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 19:31:17,641 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 19:31:17,642 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:31:17,642 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:31:17,642 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 19:31:17,651 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-21 19:31:17,651 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-21 19:31:17,661 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37e88381-15a0-4ff0-b371-cc5a4426086f/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2021-10-21 19:31:17,669 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:31:17,711 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37e88381-15a0-4ff0-b371-cc5a4426086f/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2021-10-21 19:31:17,712 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:31:17,712 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37e88381-15a0-4ff0-b371-cc5a4426086f/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:31:17,714 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37e88381-15a0-4ff0-b371-cc5a4426086f/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:31:17,725 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 19:31:17,736 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 19:31:17,736 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 19:31:17,737 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:31:17,737 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:31:17,737 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 19:31:17,739 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-21 19:31:17,740 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 19:31:17,742 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37e88381-15a0-4ff0-b371-cc5a4426086f/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2021-10-21 19:31:17,752 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:31:17,793 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37e88381-15a0-4ff0-b371-cc5a4426086f/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2021-10-21 19:31:17,793 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:31:17,794 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37e88381-15a0-4ff0-b371-cc5a4426086f/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:31:17,795 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37e88381-15a0-4ff0-b371-cc5a4426086f/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:31:17,805 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 19:31:17,816 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 19:31:17,816 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:31:17,816 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:31:17,817 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 19:31:17,822 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-21 19:31:17,824 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37e88381-15a0-4ff0-b371-cc5a4426086f/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2021-10-21 19:31:17,824 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-21 19:31:17,836 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:31:17,876 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37e88381-15a0-4ff0-b371-cc5a4426086f/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2021-10-21 19:31:17,876 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:31:17,877 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37e88381-15a0-4ff0-b371-cc5a4426086f/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:31:17,881 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37e88381-15a0-4ff0-b371-cc5a4426086f/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:31:17,887 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 19:31:17,898 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 19:31:17,898 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:31:17,898 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:31:17,899 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 19:31:17,906 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-21 19:31:17,906 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-21 19:31:17,912 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37e88381-15a0-4ff0-b371-cc5a4426086f/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2021-10-21 19:31:17,920 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:31:17,966 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37e88381-15a0-4ff0-b371-cc5a4426086f/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2021-10-21 19:31:17,966 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:31:17,967 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37e88381-15a0-4ff0-b371-cc5a4426086f/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:31:17,968 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37e88381-15a0-4ff0-b371-cc5a4426086f/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:31:17,977 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 19:31:17,989 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 19:31:17,989 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:31:17,989 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:31:17,989 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 19:31:17,998 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-21 19:31:18,004 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-21 19:31:18,007 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37e88381-15a0-4ff0-b371-cc5a4426086f/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2021-10-21 19:31:18,024 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:31:18,069 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37e88381-15a0-4ff0-b371-cc5a4426086f/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2021-10-21 19:31:18,070 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:31:18,070 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37e88381-15a0-4ff0-b371-cc5a4426086f/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:31:18,072 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37e88381-15a0-4ff0-b371-cc5a4426086f/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:31:18,080 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 19:31:18,091 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 19:31:18,091 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:31:18,092 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:31:18,092 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 19:31:18,099 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-21 19:31:18,100 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-21 19:31:18,104 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37e88381-15a0-4ff0-b371-cc5a4426086f/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2021-10-21 19:31:18,124 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-10-21 19:31:18,164 INFO L443 ModelExtractionUtils]: Simplification made 12 calls to the SMT solver. [2021-10-21 19:31:18,165 INFO L444 ModelExtractionUtils]: 0 out of 13 variables were initially zero. Simplification set additionally 10 variables to zero. [2021-10-21 19:31:18,167 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:31:18,167 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37e88381-15a0-4ff0-b371-cc5a4426086f/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:31:18,169 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37e88381-15a0-4ff0-b371-cc5a4426086f/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:31:18,177 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-10-21 19:31:18,188 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37e88381-15a0-4ff0-b371-cc5a4426086f/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2021-10-21 19:31:18,198 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2021-10-21 19:31:18,198 INFO L513 LassoAnalysis]: Proved termination. [2021-10-21 19:31:18,199 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~1, v_rep(select #length ULTIMATE.start_main_~#x~0.base)_1) = -8*ULTIMATE.start_main_~i~1 + 9*v_rep(select #length ULTIMATE.start_main_~#x~0.base)_1 Supporting invariants [] [2021-10-21 19:31:18,246 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37e88381-15a0-4ff0-b371-cc5a4426086f/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2021-10-21 19:31:18,273 INFO L297 tatePredicateManager]: 7 out of 7 supporting invariants were superfluous and have been removed [2021-10-21 19:31:18,302 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:31:18,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:31:18,327 INFO L263 TraceCheckSpWp]: Trace formula consists of 35 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-21 19:31:18,328 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 19:31:18,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:31:18,352 WARN L261 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 6 conjunts are in the unsatisfiable core [2021-10-21 19:31:18,353 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 19:31:18,416 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:31:18,437 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2021-10-21 19:31:18,439 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 28 states, 27 states have (on average 1.5185185185185186) internal successors, (41), 27 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:31:18,571 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 28 states, 27 states have (on average 1.5185185185185186) internal successors, (41), 27 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0). Second operand has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 75 states and 110 transitions. Complement of second has 8 states. [2021-10-21 19:31:18,572 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2021-10-21 19:31:18,574 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:31:18,579 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 73 transitions. [2021-10-21 19:31:18,581 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 73 transitions. Stem has 2 letters. Loop has 2 letters. [2021-10-21 19:31:18,582 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-21 19:31:18,582 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 73 transitions. Stem has 4 letters. Loop has 2 letters. [2021-10-21 19:31:18,582 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-21 19:31:18,583 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 73 transitions. Stem has 2 letters. Loop has 4 letters. [2021-10-21 19:31:18,585 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-21 19:31:18,586 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 75 states and 110 transitions. [2021-10-21 19:31:18,603 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 11 [2021-10-21 19:31:18,607 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 75 states to 22 states and 30 transitions. [2021-10-21 19:31:18,609 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 19 [2021-10-21 19:31:18,609 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 20 [2021-10-21 19:31:18,610 INFO L73 IsDeterministic]: Start isDeterministic. Operand 22 states and 30 transitions. [2021-10-21 19:31:18,611 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-21 19:31:18,611 INFO L681 BuchiCegarLoop]: Abstraction has 22 states and 30 transitions. [2021-10-21 19:31:18,629 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states and 30 transitions. [2021-10-21 19:31:18,639 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 22. [2021-10-21 19:31:18,640 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22 states, 22 states have (on average 1.3636363636363635) internal successors, (30), 21 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:31:18,642 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 30 transitions. [2021-10-21 19:31:18,643 INFO L704 BuchiCegarLoop]: Abstraction has 22 states and 30 transitions. [2021-10-21 19:31:18,643 INFO L587 BuchiCegarLoop]: Abstraction has 22 states and 30 transitions. [2021-10-21 19:31:18,644 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-10-21 19:31:18,645 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 22 states and 30 transitions. [2021-10-21 19:31:18,646 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 11 [2021-10-21 19:31:18,647 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-21 19:31:18,647 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-21 19:31:18,648 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2021-10-21 19:31:18,648 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-10-21 19:31:18,648 INFO L791 eck$LassoCheckResult]: Stem: 173#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(10); 174#L-1 havoc main_#res;havoc main_#t~nondet8, main_#t~post7, main_~i~1, main_#t~ret9, main_#t~mem10, main_#t~mem11, main_#t~ret12, main_#t~mem13, main_#t~mem15, main_#t~post14, main_~i~2, main_#t~ret16, main_~#x~0.base, main_~#x~0.offset, main_~temp~0, main_~ret~1, main_~ret2~0, main_~ret5~0;call main_~#x~0.base, main_~#x~0.offset := #Ultimate.allocOnStack(20);havoc main_~temp~0;havoc main_~ret~1;havoc main_~ret2~0;havoc main_~ret5~0;main_~i~1 := 0; 182#L37-3 assume !(main_~i~1 < 5); 187#L37-4 sep_#in~x.base, sep_#in~x.offset := main_~#x~0.base, main_~#x~0.offset;havoc sep_#res;havoc sep_#t~mem4, sep_#t~post5, sep_#t~post6, sep_#t~post3, sep_~i~0, sep_~x.base, sep_~x.offset, sep_~ret~0;sep_~x.base, sep_~x.offset := sep_#in~x.base, sep_#in~x.offset;sep_~ret~0 := 0;sep_~i~0 := 0; 188#L18-3 [2021-10-21 19:31:18,649 INFO L793 eck$LassoCheckResult]: Loop: 188#L18-3 assume !!(sep_~i~0 < 5);call sep_#t~mem4 := read~int(sep_~x.base, sep_~x.offset + 4 * sep_~i~0, 4); 191#L20 assume 0 == (if sep_#t~mem4 < 0 && 0 != sep_#t~mem4 % 2 then sep_#t~mem4 % 2 - 2 else sep_#t~mem4 % 2);havoc sep_#t~mem4;sep_#t~post5 := sep_~ret~0;sep_~ret~0 := 1 + sep_#t~post5;havoc sep_#t~post5; 189#L18-2 sep_#t~post3 := sep_~i~0;sep_~i~0 := 1 + sep_#t~post3;havoc sep_#t~post3; 188#L18-3 [2021-10-21 19:31:18,649 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:31:18,649 INFO L82 PathProgramCache]: Analyzing trace with hash 925707, now seen corresponding path program 1 times [2021-10-21 19:31:18,650 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:31:18,651 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [400897285] [2021-10-21 19:31:18,655 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:31:18,656 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:31:18,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:31:18,744 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:31:18,745 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 19:31:18,745 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [400897285] [2021-10-21 19:31:18,746 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [400897285] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-21 19:31:18,746 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-21 19:31:18,746 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-21 19:31:18,747 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1218066276] [2021-10-21 19:31:18,750 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-10-21 19:31:18,750 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:31:18,750 INFO L82 PathProgramCache]: Analyzing trace with hash 53723, now seen corresponding path program 1 times [2021-10-21 19:31:18,750 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:31:18,751 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [526837646] [2021-10-21 19:31:18,751 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:31:18,751 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:31:18,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:31:18,783 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 19:31:18,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:31:18,803 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 19:31:18,891 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 19:31:18,905 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-21 19:31:18,906 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-21 19:31:18,907 INFO L87 Difference]: Start difference. First operand 22 states and 30 transitions. cyclomatic complexity: 13 Second operand has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:31:18,925 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:31:18,926 INFO L93 Difference]: Finished difference Result 23 states and 30 transitions. [2021-10-21 19:31:18,926 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-21 19:31:18,927 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 23 states and 30 transitions. [2021-10-21 19:31:18,928 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 11 [2021-10-21 19:31:18,929 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 23 states to 23 states and 30 transitions. [2021-10-21 19:31:18,929 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 20 [2021-10-21 19:31:18,929 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 20 [2021-10-21 19:31:18,929 INFO L73 IsDeterministic]: Start isDeterministic. Operand 23 states and 30 transitions. [2021-10-21 19:31:18,930 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-21 19:31:18,930 INFO L681 BuchiCegarLoop]: Abstraction has 23 states and 30 transitions. [2021-10-21 19:31:18,930 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states and 30 transitions. [2021-10-21 19:31:18,932 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 22. [2021-10-21 19:31:18,932 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22 states, 22 states have (on average 1.3181818181818181) internal successors, (29), 21 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:31:18,933 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 29 transitions. [2021-10-21 19:31:18,933 INFO L704 BuchiCegarLoop]: Abstraction has 22 states and 29 transitions. [2021-10-21 19:31:18,933 INFO L587 BuchiCegarLoop]: Abstraction has 22 states and 29 transitions. [2021-10-21 19:31:18,933 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2021-10-21 19:31:18,934 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 22 states and 29 transitions. [2021-10-21 19:31:18,934 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 11 [2021-10-21 19:31:18,935 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-21 19:31:18,935 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-21 19:31:18,935 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2021-10-21 19:31:18,935 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-10-21 19:31:18,936 INFO L791 eck$LassoCheckResult]: Stem: 224#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string0.base, #t~string0.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string0.base, #t~string0.offset, 1);call write~init~int(0, #t~string0.base, 1 + #t~string0.offset, 1);call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(10); 225#L-1 havoc main_#res;havoc main_#t~nondet8, main_#t~post7, main_~i~1, main_#t~ret9, main_#t~mem10, main_#t~mem11, main_#t~ret12, main_#t~mem13, main_#t~mem15, main_#t~post14, main_~i~2, main_#t~ret16, main_~#x~0.base, main_~#x~0.offset, main_~temp~0, main_~ret~1, main_~ret2~0, main_~ret5~0;call main_~#x~0.base, main_~#x~0.offset := #Ultimate.allocOnStack(20);havoc main_~temp~0;havoc main_~ret~1;havoc main_~ret2~0;havoc main_~ret5~0;main_~i~1 := 0; 233#L37-3 assume !!(main_~i~1 < 5);call write~int(main_#t~nondet8, main_~#x~0.base, main_~#x~0.offset + 4 * main_~i~1, 4);havoc main_#t~nondet8; 222#L37-2 main_#t~post7 := main_~i~1;main_~i~1 := 1 + main_#t~post7;havoc main_#t~post7; 223#L37-3 assume !(main_~i~1 < 5); 238#L37-4 sep_#in~x.base, sep_#in~x.offset := main_~#x~0.base, main_~#x~0.offset;havoc sep_#res;havoc sep_#t~mem4, sep_#t~post5, sep_#t~post6, sep_#t~post3, sep_~i~0, sep_~x.base, sep_~x.offset, sep_~ret~0;sep_~x.base, sep_~x.offset := sep_#in~x.base, sep_#in~x.offset;sep_~ret~0 := 0;sep_~i~0 := 0; 239#L18-3 [2021-10-21 19:31:18,936 INFO L793 eck$LassoCheckResult]: Loop: 239#L18-3 assume !!(sep_~i~0 < 5);call sep_#t~mem4 := read~int(sep_~x.base, sep_~x.offset + 4 * sep_~i~0, 4); 242#L20 assume 0 == (if sep_#t~mem4 < 0 && 0 != sep_#t~mem4 % 2 then sep_#t~mem4 % 2 - 2 else sep_#t~mem4 % 2);havoc sep_#t~mem4;sep_#t~post5 := sep_~ret~0;sep_~ret~0 := 1 + sep_#t~post5;havoc sep_#t~post5; 240#L18-2 sep_#t~post3 := sep_~i~0;sep_~i~0 := 1 + sep_#t~post3;havoc sep_#t~post3; 239#L18-3 [2021-10-21 19:31:18,936 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:31:18,937 INFO L82 PathProgramCache]: Analyzing trace with hash 889660429, now seen corresponding path program 1 times [2021-10-21 19:31:18,937 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:31:18,937 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [980771238] [2021-10-21 19:31:18,937 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:31:18,938 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:31:18,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:31:18,981 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:31:18,981 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 19:31:18,981 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [980771238] [2021-10-21 19:31:18,982 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [980771238] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 19:31:18,982 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2031121461] [2021-10-21 19:31:18,982 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:31:18,982 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-21 19:31:18,992 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37e88381-15a0-4ff0-b371-cc5a4426086f/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:31:19,009 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37e88381-15a0-4ff0-b371-cc5a4426086f/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-21 19:31:19,036 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37e88381-15a0-4ff0-b371-cc5a4426086f/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Ended with exit code 0 [2021-10-21 19:31:19,050 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37e88381-15a0-4ff0-b371-cc5a4426086f/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2021-10-21 19:31:19,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:31:19,102 INFO L263 TraceCheckSpWp]: Trace formula consists of 56 conjuncts, 3 conjunts are in the unsatisfiable core [2021-10-21 19:31:19,103 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 19:31:19,152 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:31:19,152 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2031121461] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 19:31:19,152 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-21 19:31:19,153 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 5 [2021-10-21 19:31:19,153 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1080835996] [2021-10-21 19:31:19,153 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-10-21 19:31:19,154 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:31:19,154 INFO L82 PathProgramCache]: Analyzing trace with hash 53723, now seen corresponding path program 2 times [2021-10-21 19:31:19,154 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:31:19,154 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1055005251] [2021-10-21 19:31:19,155 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:31:19,155 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:31:19,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:31:19,163 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 19:31:19,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:31:19,187 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 19:31:19,271 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 19:31:19,271 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-21 19:31:19,272 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2021-10-21 19:31:19,272 INFO L87 Difference]: Start difference. First operand 22 states and 29 transitions. cyclomatic complexity: 12 Second operand has 5 states, 5 states have (on average 1.8) internal successors, (9), 5 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:31:19,302 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:31:19,302 INFO L93 Difference]: Finished difference Result 25 states and 32 transitions. [2021-10-21 19:31:19,302 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-21 19:31:19,303 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 25 states and 32 transitions. [2021-10-21 19:31:19,307 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 11 [2021-10-21 19:31:19,308 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 25 states to 25 states and 32 transitions. [2021-10-21 19:31:19,308 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 20 [2021-10-21 19:31:19,309 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 20 [2021-10-21 19:31:19,309 INFO L73 IsDeterministic]: Start isDeterministic. Operand 25 states and 32 transitions. [2021-10-21 19:31:19,309 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-21 19:31:19,310 INFO L681 BuchiCegarLoop]: Abstraction has 25 states and 32 transitions. [2021-10-21 19:31:19,310 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states and 32 transitions. [2021-10-21 19:31:19,314 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 24. [2021-10-21 19:31:19,315 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24 states, 24 states have (on average 1.2916666666666667) internal successors, (31), 23 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:31:19,315 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 31 transitions. [2021-10-21 19:31:19,315 INFO L704 BuchiCegarLoop]: Abstraction has 24 states and 31 transitions. [2021-10-21 19:31:19,315 INFO L587 BuchiCegarLoop]: Abstraction has 24 states and 31 transitions. [2021-10-21 19:31:19,315 INFO L425 BuchiCegarLoop]: ======== Iteration 4============ [2021-10-21 19:31:19,316 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 24 states and 31 transitions. [2021-10-21 19:31:19,319 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 11 [2021-10-21 19:31:19,319 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-21 19:31:19,319 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-21 19:31:19,320 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 1, 1, 1, 1] [2021-10-21 19:31:19,320 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-10-21 19:31:19,321 INFO L791 eck$LassoCheckResult]: Stem: 294#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(10); 295#L-1 havoc main_#res;havoc main_#t~nondet8, main_#t~post7, main_~i~1, main_#t~ret9, main_#t~mem10, main_#t~mem11, main_#t~ret12, main_#t~mem13, main_#t~mem15, main_#t~post14, main_~i~2, main_#t~ret16, main_~#x~0.base, main_~#x~0.offset, main_~temp~0, main_~ret~1, main_~ret2~0, main_~ret5~0;call main_~#x~0.base, main_~#x~0.offset := #Ultimate.allocOnStack(20);havoc main_~temp~0;havoc main_~ret~1;havoc main_~ret2~0;havoc main_~ret5~0;main_~i~1 := 0; 303#L37-3 assume !!(main_~i~1 < 5);call write~int(main_#t~nondet8, main_~#x~0.base, main_~#x~0.offset + 4 * main_~i~1, 4);havoc main_#t~nondet8; 292#L37-2 main_#t~post7 := main_~i~1;main_~i~1 := 1 + main_#t~post7;havoc main_#t~post7; 293#L37-3 assume !!(main_~i~1 < 5);call write~int(main_#t~nondet8, main_~#x~0.base, main_~#x~0.offset + 4 * main_~i~1, 4);havoc main_#t~nondet8; 314#L37-2 main_#t~post7 := main_~i~1;main_~i~1 := 1 + main_#t~post7;havoc main_#t~post7; 315#L37-3 assume !(main_~i~1 < 5); 308#L37-4 sep_#in~x.base, sep_#in~x.offset := main_~#x~0.base, main_~#x~0.offset;havoc sep_#res;havoc sep_#t~mem4, sep_#t~post5, sep_#t~post6, sep_#t~post3, sep_~i~0, sep_~x.base, sep_~x.offset, sep_~ret~0;sep_~x.base, sep_~x.offset := sep_#in~x.base, sep_#in~x.offset;sep_~ret~0 := 0;sep_~i~0 := 0; 309#L18-3 [2021-10-21 19:31:19,322 INFO L793 eck$LassoCheckResult]: Loop: 309#L18-3 assume !!(sep_~i~0 < 5);call sep_#t~mem4 := read~int(sep_~x.base, sep_~x.offset + 4 * sep_~i~0, 4); 312#L20 assume 0 == (if sep_#t~mem4 < 0 && 0 != sep_#t~mem4 % 2 then sep_#t~mem4 % 2 - 2 else sep_#t~mem4 % 2);havoc sep_#t~mem4;sep_#t~post5 := sep_~ret~0;sep_~ret~0 := 1 + sep_#t~post5;havoc sep_#t~post5; 310#L18-2 sep_#t~post3 := sep_~i~0;sep_~i~0 := 1 + sep_#t~post3;havoc sep_#t~post3; 309#L18-3 [2021-10-21 19:31:19,322 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:31:19,322 INFO L82 PathProgramCache]: Analyzing trace with hash 265236367, now seen corresponding path program 2 times [2021-10-21 19:31:19,323 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:31:19,324 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [648367431] [2021-10-21 19:31:19,324 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:31:19,325 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:31:19,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:31:19,423 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:31:19,423 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 19:31:19,424 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [648367431] [2021-10-21 19:31:19,424 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [648367431] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 19:31:19,424 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [131579174] [2021-10-21 19:31:19,424 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-21 19:31:19,425 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-21 19:31:19,425 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37e88381-15a0-4ff0-b371-cc5a4426086f/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:31:19,429 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37e88381-15a0-4ff0-b371-cc5a4426086f/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-21 19:31:19,460 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37e88381-15a0-4ff0-b371-cc5a4426086f/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2021-10-21 19:31:19,505 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-10-21 19:31:19,505 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-21 19:31:19,506 INFO L263 TraceCheckSpWp]: Trace formula consists of 64 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-21 19:31:19,507 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 19:31:19,541 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:31:19,542 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [131579174] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 19:31:19,542 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-21 19:31:19,542 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 6 [2021-10-21 19:31:19,543 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1380564935] [2021-10-21 19:31:19,543 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-10-21 19:31:19,543 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:31:19,544 INFO L82 PathProgramCache]: Analyzing trace with hash 53723, now seen corresponding path program 3 times [2021-10-21 19:31:19,544 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:31:19,544 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1842114651] [2021-10-21 19:31:19,544 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:31:19,545 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:31:19,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:31:19,552 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 19:31:19,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:31:19,560 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 19:31:19,634 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 19:31:19,635 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-21 19:31:19,635 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2021-10-21 19:31:19,635 INFO L87 Difference]: Start difference. First operand 24 states and 31 transitions. cyclomatic complexity: 12 Second operand has 6 states, 6 states have (on average 1.8333333333333333) internal successors, (11), 6 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:31:19,660 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:31:19,660 INFO L93 Difference]: Finished difference Result 27 states and 34 transitions. [2021-10-21 19:31:19,661 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-21 19:31:19,661 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 27 states and 34 transitions. [2021-10-21 19:31:19,662 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 11 [2021-10-21 19:31:19,662 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 27 states to 27 states and 34 transitions. [2021-10-21 19:31:19,663 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 20 [2021-10-21 19:31:19,663 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 20 [2021-10-21 19:31:19,663 INFO L73 IsDeterministic]: Start isDeterministic. Operand 27 states and 34 transitions. [2021-10-21 19:31:19,663 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-21 19:31:19,663 INFO L681 BuchiCegarLoop]: Abstraction has 27 states and 34 transitions. [2021-10-21 19:31:19,663 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states and 34 transitions. [2021-10-21 19:31:19,665 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 26. [2021-10-21 19:31:19,666 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26 states, 26 states have (on average 1.2692307692307692) internal successors, (33), 25 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:31:19,666 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 33 transitions. [2021-10-21 19:31:19,667 INFO L704 BuchiCegarLoop]: Abstraction has 26 states and 33 transitions. [2021-10-21 19:31:19,667 INFO L587 BuchiCegarLoop]: Abstraction has 26 states and 33 transitions. [2021-10-21 19:31:19,667 INFO L425 BuchiCegarLoop]: ======== Iteration 5============ [2021-10-21 19:31:19,667 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 26 states and 33 transitions. [2021-10-21 19:31:19,668 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 11 [2021-10-21 19:31:19,668 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-21 19:31:19,668 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-21 19:31:19,668 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [3, 3, 1, 1, 1, 1] [2021-10-21 19:31:19,668 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-10-21 19:31:19,669 INFO L791 eck$LassoCheckResult]: Stem: 375#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string0.base, #t~string0.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string0.base, #t~string0.offset, 1);call write~init~int(0, #t~string0.base, 1 + #t~string0.offset, 1);call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(10); 376#L-1 havoc main_#res;havoc main_#t~nondet8, main_#t~post7, main_~i~1, main_#t~ret9, main_#t~mem10, main_#t~mem11, main_#t~ret12, main_#t~mem13, main_#t~mem15, main_#t~post14, main_~i~2, main_#t~ret16, main_~#x~0.base, main_~#x~0.offset, main_~temp~0, main_~ret~1, main_~ret2~0, main_~ret5~0;call main_~#x~0.base, main_~#x~0.offset := #Ultimate.allocOnStack(20);havoc main_~temp~0;havoc main_~ret~1;havoc main_~ret2~0;havoc main_~ret5~0;main_~i~1 := 0; 384#L37-3 assume !!(main_~i~1 < 5);call write~int(main_#t~nondet8, main_~#x~0.base, main_~#x~0.offset + 4 * main_~i~1, 4);havoc main_#t~nondet8; 373#L37-2 main_#t~post7 := main_~i~1;main_~i~1 := 1 + main_#t~post7;havoc main_#t~post7; 374#L37-3 assume !!(main_~i~1 < 5);call write~int(main_#t~nondet8, main_~#x~0.base, main_~#x~0.offset + 4 * main_~i~1, 4);havoc main_#t~nondet8; 395#L37-2 main_#t~post7 := main_~i~1;main_~i~1 := 1 + main_#t~post7;havoc main_#t~post7; 398#L37-3 assume !!(main_~i~1 < 5);call write~int(main_#t~nondet8, main_~#x~0.base, main_~#x~0.offset + 4 * main_~i~1, 4);havoc main_#t~nondet8; 397#L37-2 main_#t~post7 := main_~i~1;main_~i~1 := 1 + main_#t~post7;havoc main_#t~post7; 396#L37-3 assume !(main_~i~1 < 5); 389#L37-4 sep_#in~x.base, sep_#in~x.offset := main_~#x~0.base, main_~#x~0.offset;havoc sep_#res;havoc sep_#t~mem4, sep_#t~post5, sep_#t~post6, sep_#t~post3, sep_~i~0, sep_~x.base, sep_~x.offset, sep_~ret~0;sep_~x.base, sep_~x.offset := sep_#in~x.base, sep_#in~x.offset;sep_~ret~0 := 0;sep_~i~0 := 0; 390#L18-3 [2021-10-21 19:31:19,669 INFO L793 eck$LassoCheckResult]: Loop: 390#L18-3 assume !!(sep_~i~0 < 5);call sep_#t~mem4 := read~int(sep_~x.base, sep_~x.offset + 4 * sep_~i~0, 4); 393#L20 assume 0 == (if sep_#t~mem4 < 0 && 0 != sep_#t~mem4 % 2 then sep_#t~mem4 % 2 - 2 else sep_#t~mem4 % 2);havoc sep_#t~mem4;sep_#t~post5 := sep_~ret~0;sep_~ret~0 := 1 + sep_#t~post5;havoc sep_#t~post5; 391#L18-2 sep_#t~post3 := sep_~i~0;sep_~i~0 := 1 + sep_#t~post3;havoc sep_#t~post3; 390#L18-3 [2021-10-21 19:31:19,669 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:31:19,669 INFO L82 PathProgramCache]: Analyzing trace with hash 1489134225, now seen corresponding path program 3 times [2021-10-21 19:31:19,670 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:31:19,670 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1432748213] [2021-10-21 19:31:19,670 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:31:19,670 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:31:19,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:31:19,723 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:31:19,724 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 19:31:19,724 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1432748213] [2021-10-21 19:31:19,724 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1432748213] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 19:31:19,724 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [360891048] [2021-10-21 19:31:19,725 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-10-21 19:31:19,725 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-21 19:31:19,725 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37e88381-15a0-4ff0-b371-cc5a4426086f/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:31:19,727 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37e88381-15a0-4ff0-b371-cc5a4426086f/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-21 19:31:19,751 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37e88381-15a0-4ff0-b371-cc5a4426086f/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2021-10-21 19:31:19,800 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2021-10-21 19:31:19,800 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-21 19:31:19,801 INFO L263 TraceCheckSpWp]: Trace formula consists of 72 conjuncts, 5 conjunts are in the unsatisfiable core [2021-10-21 19:31:19,802 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 19:31:19,849 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:31:19,849 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [360891048] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 19:31:19,849 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-21 19:31:19,849 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 7 [2021-10-21 19:31:19,850 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1085290917] [2021-10-21 19:31:19,850 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-10-21 19:31:19,851 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:31:19,851 INFO L82 PathProgramCache]: Analyzing trace with hash 53723, now seen corresponding path program 4 times [2021-10-21 19:31:19,851 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:31:19,851 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [394874392] [2021-10-21 19:31:19,851 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:31:19,852 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:31:19,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:31:19,858 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 19:31:19,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:31:19,866 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 19:31:19,939 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 19:31:19,940 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-10-21 19:31:19,940 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2021-10-21 19:31:19,941 INFO L87 Difference]: Start difference. First operand 26 states and 33 transitions. cyclomatic complexity: 12 Second operand has 7 states, 7 states have (on average 1.8571428571428572) internal successors, (13), 7 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:31:19,966 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:31:19,967 INFO L93 Difference]: Finished difference Result 29 states and 36 transitions. [2021-10-21 19:31:19,967 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-21 19:31:19,967 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 29 states and 36 transitions. [2021-10-21 19:31:19,968 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 11 [2021-10-21 19:31:19,969 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 29 states to 29 states and 36 transitions. [2021-10-21 19:31:19,969 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 20 [2021-10-21 19:31:19,969 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 20 [2021-10-21 19:31:19,969 INFO L73 IsDeterministic]: Start isDeterministic. Operand 29 states and 36 transitions. [2021-10-21 19:31:19,970 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-21 19:31:19,970 INFO L681 BuchiCegarLoop]: Abstraction has 29 states and 36 transitions. [2021-10-21 19:31:19,970 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states and 36 transitions. [2021-10-21 19:31:19,972 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 28. [2021-10-21 19:31:19,972 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28 states, 28 states have (on average 1.25) internal successors, (35), 27 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:31:19,973 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 35 transitions. [2021-10-21 19:31:19,973 INFO L704 BuchiCegarLoop]: Abstraction has 28 states and 35 transitions. [2021-10-21 19:31:19,973 INFO L587 BuchiCegarLoop]: Abstraction has 28 states and 35 transitions. [2021-10-21 19:31:19,973 INFO L425 BuchiCegarLoop]: ======== Iteration 6============ [2021-10-21 19:31:19,973 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 28 states and 35 transitions. [2021-10-21 19:31:19,974 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 11 [2021-10-21 19:31:19,974 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-21 19:31:19,974 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-21 19:31:19,975 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [4, 4, 1, 1, 1, 1] [2021-10-21 19:31:19,975 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-10-21 19:31:19,975 INFO L791 eck$LassoCheckResult]: Stem: 467#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(10); 468#L-1 havoc main_#res;havoc main_#t~nondet8, main_#t~post7, main_~i~1, main_#t~ret9, main_#t~mem10, main_#t~mem11, main_#t~ret12, main_#t~mem13, main_#t~mem15, main_#t~post14, main_~i~2, main_#t~ret16, main_~#x~0.base, main_~#x~0.offset, main_~temp~0, main_~ret~1, main_~ret2~0, main_~ret5~0;call main_~#x~0.base, main_~#x~0.offset := #Ultimate.allocOnStack(20);havoc main_~temp~0;havoc main_~ret~1;havoc main_~ret2~0;havoc main_~ret5~0;main_~i~1 := 0; 476#L37-3 assume !!(main_~i~1 < 5);call write~int(main_#t~nondet8, main_~#x~0.base, main_~#x~0.offset + 4 * main_~i~1, 4);havoc main_#t~nondet8; 487#L37-2 main_#t~post7 := main_~i~1;main_~i~1 := 1 + main_#t~post7;havoc main_#t~post7; 488#L37-3 assume !!(main_~i~1 < 5);call write~int(main_#t~nondet8, main_~#x~0.base, main_~#x~0.offset + 4 * main_~i~1, 4);havoc main_#t~nondet8; 465#L37-2 main_#t~post7 := main_~i~1;main_~i~1 := 1 + main_#t~post7;havoc main_#t~post7; 466#L37-3 assume !!(main_~i~1 < 5);call write~int(main_#t~nondet8, main_~#x~0.base, main_~#x~0.offset + 4 * main_~i~1, 4);havoc main_#t~nondet8; 492#L37-2 main_#t~post7 := main_~i~1;main_~i~1 := 1 + main_#t~post7;havoc main_#t~post7; 491#L37-3 assume !!(main_~i~1 < 5);call write~int(main_#t~nondet8, main_~#x~0.base, main_~#x~0.offset + 4 * main_~i~1, 4);havoc main_#t~nondet8; 490#L37-2 main_#t~post7 := main_~i~1;main_~i~1 := 1 + main_#t~post7;havoc main_#t~post7; 489#L37-3 assume !(main_~i~1 < 5); 481#L37-4 sep_#in~x.base, sep_#in~x.offset := main_~#x~0.base, main_~#x~0.offset;havoc sep_#res;havoc sep_#t~mem4, sep_#t~post5, sep_#t~post6, sep_#t~post3, sep_~i~0, sep_~x.base, sep_~x.offset, sep_~ret~0;sep_~x.base, sep_~x.offset := sep_#in~x.base, sep_#in~x.offset;sep_~ret~0 := 0;sep_~i~0 := 0; 482#L18-3 [2021-10-21 19:31:19,975 INFO L793 eck$LassoCheckResult]: Loop: 482#L18-3 assume !!(sep_~i~0 < 5);call sep_#t~mem4 := read~int(sep_~x.base, sep_~x.offset + 4 * sep_~i~0, 4); 485#L20 assume 0 == (if sep_#t~mem4 < 0 && 0 != sep_#t~mem4 % 2 then sep_#t~mem4 % 2 - 2 else sep_#t~mem4 % 2);havoc sep_#t~mem4;sep_#t~post5 := sep_~ret~0;sep_~ret~0 := 1 + sep_#t~post5;havoc sep_#t~post5; 483#L18-2 sep_#t~post3 := sep_~i~0;sep_~i~0 := 1 + sep_#t~post3;havoc sep_#t~post3; 482#L18-3 [2021-10-21 19:31:19,976 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:31:19,976 INFO L82 PathProgramCache]: Analyzing trace with hash 833936659, now seen corresponding path program 4 times [2021-10-21 19:31:19,976 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:31:19,976 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [934623667] [2021-10-21 19:31:19,977 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:31:19,977 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:31:19,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:31:20,038 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:31:20,039 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 19:31:20,039 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [934623667] [2021-10-21 19:31:20,039 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [934623667] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 19:31:20,039 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [492202855] [2021-10-21 19:31:20,039 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-10-21 19:31:20,040 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-21 19:31:20,040 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37e88381-15a0-4ff0-b371-cc5a4426086f/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:31:20,042 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37e88381-15a0-4ff0-b371-cc5a4426086f/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-21 19:31:20,062 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37e88381-15a0-4ff0-b371-cc5a4426086f/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2021-10-21 19:31:20,118 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-10-21 19:31:20,118 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-21 19:31:20,119 INFO L263 TraceCheckSpWp]: Trace formula consists of 80 conjuncts, 6 conjunts are in the unsatisfiable core [2021-10-21 19:31:20,120 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 19:31:20,164 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:31:20,164 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [492202855] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 19:31:20,165 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-21 19:31:20,165 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 8 [2021-10-21 19:31:20,165 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1536986880] [2021-10-21 19:31:20,165 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-10-21 19:31:20,166 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:31:20,166 INFO L82 PathProgramCache]: Analyzing trace with hash 53723, now seen corresponding path program 5 times [2021-10-21 19:31:20,166 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:31:20,166 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [167928474] [2021-10-21 19:31:20,166 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:31:20,166 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:31:20,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:31:20,172 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 19:31:20,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:31:20,178 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 19:31:20,268 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 19:31:20,269 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-10-21 19:31:20,269 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2021-10-21 19:31:20,269 INFO L87 Difference]: Start difference. First operand 28 states and 35 transitions. cyclomatic complexity: 12 Second operand has 8 states, 8 states have (on average 1.875) internal successors, (15), 8 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:31:20,296 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:31:20,296 INFO L93 Difference]: Finished difference Result 30 states and 37 transitions. [2021-10-21 19:31:20,296 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-21 19:31:20,297 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 30 states and 37 transitions. [2021-10-21 19:31:20,297 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 11 [2021-10-21 19:31:20,298 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 30 states to 30 states and 37 transitions. [2021-10-21 19:31:20,298 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 20 [2021-10-21 19:31:20,298 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 20 [2021-10-21 19:31:20,299 INFO L73 IsDeterministic]: Start isDeterministic. Operand 30 states and 37 transitions. [2021-10-21 19:31:20,299 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-21 19:31:20,299 INFO L681 BuchiCegarLoop]: Abstraction has 30 states and 37 transitions. [2021-10-21 19:31:20,299 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states and 37 transitions. [2021-10-21 19:31:20,301 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 30. [2021-10-21 19:31:20,301 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30 states, 30 states have (on average 1.2333333333333334) internal successors, (37), 29 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:31:20,302 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 37 transitions. [2021-10-21 19:31:20,302 INFO L704 BuchiCegarLoop]: Abstraction has 30 states and 37 transitions. [2021-10-21 19:31:20,302 INFO L587 BuchiCegarLoop]: Abstraction has 30 states and 37 transitions. [2021-10-21 19:31:20,302 INFO L425 BuchiCegarLoop]: ======== Iteration 7============ [2021-10-21 19:31:20,302 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 30 states and 37 transitions. [2021-10-21 19:31:20,303 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 11 [2021-10-21 19:31:20,303 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-21 19:31:20,303 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-21 19:31:20,304 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [5, 5, 1, 1, 1, 1] [2021-10-21 19:31:20,304 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-10-21 19:31:20,304 INFO L791 eck$LassoCheckResult]: Stem: 569#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(10); 570#L-1 havoc main_#res;havoc main_#t~nondet8, main_#t~post7, main_~i~1, main_#t~ret9, main_#t~mem10, main_#t~mem11, main_#t~ret12, main_#t~mem13, main_#t~mem15, main_#t~post14, main_~i~2, main_#t~ret16, main_~#x~0.base, main_~#x~0.offset, main_~temp~0, main_~ret~1, main_~ret2~0, main_~ret5~0;call main_~#x~0.base, main_~#x~0.offset := #Ultimate.allocOnStack(20);havoc main_~temp~0;havoc main_~ret~1;havoc main_~ret2~0;havoc main_~ret5~0;main_~i~1 := 0; 578#L37-3 assume !!(main_~i~1 < 5);call write~int(main_#t~nondet8, main_~#x~0.base, main_~#x~0.offset + 4 * main_~i~1, 4);havoc main_#t~nondet8; 567#L37-2 main_#t~post7 := main_~i~1;main_~i~1 := 1 + main_#t~post7;havoc main_#t~post7; 568#L37-3 assume !!(main_~i~1 < 5);call write~int(main_#t~nondet8, main_~#x~0.base, main_~#x~0.offset + 4 * main_~i~1, 4);havoc main_#t~nondet8; 589#L37-2 main_#t~post7 := main_~i~1;main_~i~1 := 1 + main_#t~post7;havoc main_#t~post7; 596#L37-3 assume !!(main_~i~1 < 5);call write~int(main_#t~nondet8, main_~#x~0.base, main_~#x~0.offset + 4 * main_~i~1, 4);havoc main_#t~nondet8; 595#L37-2 main_#t~post7 := main_~i~1;main_~i~1 := 1 + main_#t~post7;havoc main_#t~post7; 594#L37-3 assume !!(main_~i~1 < 5);call write~int(main_#t~nondet8, main_~#x~0.base, main_~#x~0.offset + 4 * main_~i~1, 4);havoc main_#t~nondet8; 593#L37-2 main_#t~post7 := main_~i~1;main_~i~1 := 1 + main_#t~post7;havoc main_#t~post7; 592#L37-3 assume !!(main_~i~1 < 5);call write~int(main_#t~nondet8, main_~#x~0.base, main_~#x~0.offset + 4 * main_~i~1, 4);havoc main_#t~nondet8; 591#L37-2 main_#t~post7 := main_~i~1;main_~i~1 := 1 + main_#t~post7;havoc main_#t~post7; 590#L37-3 assume !(main_~i~1 < 5); 583#L37-4 sep_#in~x.base, sep_#in~x.offset := main_~#x~0.base, main_~#x~0.offset;havoc sep_#res;havoc sep_#t~mem4, sep_#t~post5, sep_#t~post6, sep_#t~post3, sep_~i~0, sep_~x.base, sep_~x.offset, sep_~ret~0;sep_~x.base, sep_~x.offset := sep_#in~x.base, sep_#in~x.offset;sep_~ret~0 := 0;sep_~i~0 := 0; 584#L18-3 [2021-10-21 19:31:20,304 INFO L793 eck$LassoCheckResult]: Loop: 584#L18-3 assume !!(sep_~i~0 < 5);call sep_#t~mem4 := read~int(sep_~x.base, sep_~x.offset + 4 * sep_~i~0, 4); 587#L20 assume 0 == (if sep_#t~mem4 < 0 && 0 != sep_#t~mem4 % 2 then sep_#t~mem4 % 2 - 2 else sep_#t~mem4 % 2);havoc sep_#t~mem4;sep_#t~post5 := sep_~ret~0;sep_~ret~0 := 1 + sep_#t~post5;havoc sep_#t~post5; 585#L18-2 sep_#t~post3 := sep_~i~0;sep_~i~0 := 1 + sep_#t~post3;havoc sep_#t~post3; 584#L18-3 [2021-10-21 19:31:20,305 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:31:20,305 INFO L82 PathProgramCache]: Analyzing trace with hash -1745699051, now seen corresponding path program 5 times [2021-10-21 19:31:20,305 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:31:20,305 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1705712557] [2021-10-21 19:31:20,305 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:31:20,306 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:31:20,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:31:20,320 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 19:31:20,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:31:20,342 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 19:31:20,342 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:31:20,343 INFO L82 PathProgramCache]: Analyzing trace with hash 53723, now seen corresponding path program 6 times [2021-10-21 19:31:20,343 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:31:20,343 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [789651228] [2021-10-21 19:31:20,343 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:31:20,343 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:31:20,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:31:20,349 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 19:31:20,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:31:20,356 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 19:31:20,356 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:31:20,357 INFO L82 PathProgramCache]: Analyzing trace with hash 1638582855, now seen corresponding path program 1 times [2021-10-21 19:31:20,357 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:31:20,357 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2037432791] [2021-10-21 19:31:20,357 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:31:20,357 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:31:20,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:31:20,395 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 19:31:20,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:31:20,474 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 19:31:22,086 INFO L210 LassoAnalysis]: Preferences: [2021-10-21 19:31:22,086 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-21 19:31:22,086 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-21 19:31:22,086 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-21 19:31:22,086 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-21 19:31:22,087 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:31:22,087 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-21 19:31:22,087 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-21 19:31:22,087 INFO L133 ssoRankerPreferences]: Filename of dumped script: sep05-1.i_Iteration7_Lasso [2021-10-21 19:31:22,087 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-21 19:31:22,087 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-21 19:31:22,092 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:31:22,094 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:31:22,096 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:31:22,098 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:31:22,100 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:31:22,102 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:31:22,104 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:31:22,108 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:31:22,110 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:31:22,112 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:31:22,114 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:31:22,116 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:31:22,118 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:31:22,120 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:31:22,123 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:31:22,125 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:31:22,127 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:31:22,129 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:31:22,354 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:31:22,356 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:31:22,358 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:31:22,360 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:31:22,361 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:31:22,364 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:31:22,366 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:31:22,368 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:31:22,712 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-21 19:31:22,712 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-10-21 19:31:22,713 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:31:22,713 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37e88381-15a0-4ff0-b371-cc5a4426086f/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:31:22,720 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37e88381-15a0-4ff0-b371-cc5a4426086f/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:31:22,721 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37e88381-15a0-4ff0-b371-cc5a4426086f/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2021-10-21 19:31:22,722 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 [2021-10-21 19:31:22,729 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 19:31:22,729 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 19:31:22,729 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:31:22,729 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:31:22,729 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 19:31:22,730 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-21 19:31:22,730 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 19:31:22,764 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:31:22,799 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37e88381-15a0-4ff0-b371-cc5a4426086f/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Forceful destruction successful, exit code 0 [2021-10-21 19:31:22,800 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:31:22,800 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37e88381-15a0-4ff0-b371-cc5a4426086f/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:31:22,801 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37e88381-15a0-4ff0-b371-cc5a4426086f/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:31:22,805 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37e88381-15a0-4ff0-b371-cc5a4426086f/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2021-10-21 19:31:22,805 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 19:31:22,812 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 19:31:22,813 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 19:31:22,813 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:31:22,813 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:31:22,813 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 19:31:22,813 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-21 19:31:22,813 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 19:31:22,814 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:31:22,837 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37e88381-15a0-4ff0-b371-cc5a4426086f/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Forceful destruction successful, exit code 0 [2021-10-21 19:31:22,837 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:31:22,837 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37e88381-15a0-4ff0-b371-cc5a4426086f/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:31:22,838 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37e88381-15a0-4ff0-b371-cc5a4426086f/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:31:22,839 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37e88381-15a0-4ff0-b371-cc5a4426086f/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2021-10-21 19:31:22,839 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 19:31:22,847 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 19:31:22,847 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:31:22,847 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:31:22,848 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 19:31:22,850 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-21 19:31:22,850 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-21 19:31:22,880 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:31:22,917 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37e88381-15a0-4ff0-b371-cc5a4426086f/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Forceful destruction successful, exit code 0 [2021-10-21 19:31:22,918 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:31:22,918 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37e88381-15a0-4ff0-b371-cc5a4426086f/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:31:22,919 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37e88381-15a0-4ff0-b371-cc5a4426086f/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:31:22,927 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 19:31:22,927 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37e88381-15a0-4ff0-b371-cc5a4426086f/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2021-10-21 19:31:22,935 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 19:31:22,935 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 19:31:22,935 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:31:22,935 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:31:22,935 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 19:31:22,935 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-21 19:31:22,935 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 19:31:22,936 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:31:22,959 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37e88381-15a0-4ff0-b371-cc5a4426086f/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Forceful destruction successful, exit code 0 [2021-10-21 19:31:22,961 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:31:22,961 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37e88381-15a0-4ff0-b371-cc5a4426086f/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:31:22,962 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37e88381-15a0-4ff0-b371-cc5a4426086f/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:31:22,964 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37e88381-15a0-4ff0-b371-cc5a4426086f/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process [2021-10-21 19:31:22,965 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 19:31:22,972 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 19:31:22,972 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 19:31:22,972 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:31:22,972 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:31:22,972 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 19:31:22,973 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-21 19:31:22,973 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 19:31:22,974 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:31:22,992 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37e88381-15a0-4ff0-b371-cc5a4426086f/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Forceful destruction successful, exit code 0 [2021-10-21 19:31:22,993 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:31:22,993 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37e88381-15a0-4ff0-b371-cc5a4426086f/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:31:22,993 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37e88381-15a0-4ff0-b371-cc5a4426086f/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:31:22,995 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37e88381-15a0-4ff0-b371-cc5a4426086f/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Waiting until timeout for monitored process [2021-10-21 19:31:22,998 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 [2021-10-21 19:31:23,005 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 19:31:23,005 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 19:31:23,005 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:31:23,005 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:31:23,005 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 19:31:23,006 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-21 19:31:23,006 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 19:31:23,020 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:31:23,060 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37e88381-15a0-4ff0-b371-cc5a4426086f/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Forceful destruction successful, exit code 0 [2021-10-21 19:31:23,060 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:31:23,060 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37e88381-15a0-4ff0-b371-cc5a4426086f/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:31:23,061 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37e88381-15a0-4ff0-b371-cc5a4426086f/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:31:23,072 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 19:31:23,081 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 19:31:23,081 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:31:23,081 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:31:23,081 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 19:31:23,084 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-21 19:31:23,084 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-21 19:31:23,088 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37e88381-15a0-4ff0-b371-cc5a4426086f/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Waiting until timeout for monitored process [2021-10-21 19:31:23,104 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:31:23,137 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37e88381-15a0-4ff0-b371-cc5a4426086f/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Forceful destruction successful, exit code 0 [2021-10-21 19:31:23,137 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:31:23,138 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37e88381-15a0-4ff0-b371-cc5a4426086f/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:31:23,138 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37e88381-15a0-4ff0-b371-cc5a4426086f/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:31:23,145 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 19:31:23,145 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37e88381-15a0-4ff0-b371-cc5a4426086f/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Waiting until timeout for monitored process [2021-10-21 19:31:23,153 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 19:31:23,153 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 19:31:23,153 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:31:23,153 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:31:23,153 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 19:31:23,154 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-21 19:31:23,154 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 19:31:23,163 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:31:23,182 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37e88381-15a0-4ff0-b371-cc5a4426086f/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Forceful destruction successful, exit code 0 [2021-10-21 19:31:23,182 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:31:23,183 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37e88381-15a0-4ff0-b371-cc5a4426086f/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:31:23,183 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37e88381-15a0-4ff0-b371-cc5a4426086f/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:31:23,184 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37e88381-15a0-4ff0-b371-cc5a4426086f/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Waiting until timeout for monitored process [2021-10-21 19:31:23,185 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 19:31:23,192 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 19:31:23,192 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 19:31:23,192 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:31:23,192 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:31:23,192 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 19:31:23,193 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-21 19:31:23,193 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 19:31:23,207 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:31:23,231 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37e88381-15a0-4ff0-b371-cc5a4426086f/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Forceful destruction successful, exit code 0 [2021-10-21 19:31:23,231 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:31:23,231 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37e88381-15a0-4ff0-b371-cc5a4426086f/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:31:23,232 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37e88381-15a0-4ff0-b371-cc5a4426086f/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:31:23,233 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37e88381-15a0-4ff0-b371-cc5a4426086f/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Waiting until timeout for monitored process [2021-10-21 19:31:23,237 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 19:31:23,245 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 19:31:23,245 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:31:23,246 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:31:23,246 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 19:31:23,248 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-21 19:31:23,248 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-21 19:31:23,262 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:31:23,296 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37e88381-15a0-4ff0-b371-cc5a4426086f/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Forceful destruction successful, exit code 0 [2021-10-21 19:31:23,296 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:31:23,296 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37e88381-15a0-4ff0-b371-cc5a4426086f/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:31:23,297 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37e88381-15a0-4ff0-b371-cc5a4426086f/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:31:23,300 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37e88381-15a0-4ff0-b371-cc5a4426086f/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Waiting until timeout for monitored process [2021-10-21 19:31:23,301 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 19:31:23,309 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 19:31:23,310 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 19:31:23,310 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:31:23,310 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:31:23,310 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 19:31:23,310 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-21 19:31:23,310 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 19:31:23,318 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:31:23,337 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37e88381-15a0-4ff0-b371-cc5a4426086f/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Forceful destruction successful, exit code 0 [2021-10-21 19:31:23,337 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:31:23,338 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37e88381-15a0-4ff0-b371-cc5a4426086f/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:31:23,338 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37e88381-15a0-4ff0-b371-cc5a4426086f/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:31:23,339 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37e88381-15a0-4ff0-b371-cc5a4426086f/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Waiting until timeout for monitored process [2021-10-21 19:31:23,339 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 19:31:23,347 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 19:31:23,347 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:31:23,347 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:31:23,347 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 19:31:23,350 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-21 19:31:23,350 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-21 19:31:23,359 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:31:23,383 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37e88381-15a0-4ff0-b371-cc5a4426086f/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Forceful destruction successful, exit code 0 [2021-10-21 19:31:23,383 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:31:23,384 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37e88381-15a0-4ff0-b371-cc5a4426086f/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:31:23,384 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37e88381-15a0-4ff0-b371-cc5a4426086f/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:31:23,385 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37e88381-15a0-4ff0-b371-cc5a4426086f/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Waiting until timeout for monitored process [2021-10-21 19:31:23,386 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 19:31:23,394 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 19:31:23,395 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 19:31:23,395 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:31:23,395 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:31:23,395 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 19:31:23,396 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-21 19:31:23,396 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 19:31:23,397 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:31:23,421 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37e88381-15a0-4ff0-b371-cc5a4426086f/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Forceful destruction successful, exit code 0 [2021-10-21 19:31:23,422 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:31:23,422 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37e88381-15a0-4ff0-b371-cc5a4426086f/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:31:23,423 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37e88381-15a0-4ff0-b371-cc5a4426086f/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:31:23,424 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37e88381-15a0-4ff0-b371-cc5a4426086f/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Waiting until timeout for monitored process [2021-10-21 19:31:23,425 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 19:31:23,434 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 19:31:23,434 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 19:31:23,434 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:31:23,434 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:31:23,434 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 19:31:23,435 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-21 19:31:23,435 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 19:31:23,460 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:31:23,498 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37e88381-15a0-4ff0-b371-cc5a4426086f/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Forceful destruction successful, exit code 0 [2021-10-21 19:31:23,499 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:31:23,499 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37e88381-15a0-4ff0-b371-cc5a4426086f/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:31:23,509 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37e88381-15a0-4ff0-b371-cc5a4426086f/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:31:23,513 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 19:31:23,524 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 19:31:23,524 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 19:31:23,524 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:31:23,524 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:31:23,524 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 19:31:23,525 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-21 19:31:23,525 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 19:31:23,525 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37e88381-15a0-4ff0-b371-cc5a4426086f/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Waiting until timeout for monitored process [2021-10-21 19:31:23,550 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:31:23,574 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37e88381-15a0-4ff0-b371-cc5a4426086f/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Forceful destruction successful, exit code 0 [2021-10-21 19:31:23,575 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:31:23,575 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37e88381-15a0-4ff0-b371-cc5a4426086f/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:31:23,576 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37e88381-15a0-4ff0-b371-cc5a4426086f/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:31:23,587 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 19:31:23,588 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37e88381-15a0-4ff0-b371-cc5a4426086f/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Waiting until timeout for monitored process [2021-10-21 19:31:23,598 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 19:31:23,599 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 19:31:23,599 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:31:23,599 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:31:23,599 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 19:31:23,599 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-21 19:31:23,600 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 19:31:23,623 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:31:23,650 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37e88381-15a0-4ff0-b371-cc5a4426086f/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Ended with exit code 0 [2021-10-21 19:31:23,651 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:31:23,651 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37e88381-15a0-4ff0-b371-cc5a4426086f/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:31:23,652 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37e88381-15a0-4ff0-b371-cc5a4426086f/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:31:23,654 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37e88381-15a0-4ff0-b371-cc5a4426086f/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Waiting until timeout for monitored process [2021-10-21 19:31:23,655 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 [2021-10-21 19:31:23,664 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 19:31:23,664 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 19:31:23,664 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:31:23,664 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:31:23,664 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 19:31:23,665 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-21 19:31:23,665 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 19:31:23,668 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:31:23,692 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37e88381-15a0-4ff0-b371-cc5a4426086f/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Forceful destruction successful, exit code 0 [2021-10-21 19:31:23,692 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:31:23,692 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37e88381-15a0-4ff0-b371-cc5a4426086f/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:31:23,695 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37e88381-15a0-4ff0-b371-cc5a4426086f/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:31:23,696 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37e88381-15a0-4ff0-b371-cc5a4426086f/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Waiting until timeout for monitored process [2021-10-21 19:31:23,696 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 19:31:23,705 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 19:31:23,705 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:31:23,705 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:31:23,705 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 19:31:23,707 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-21 19:31:23,707 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-21 19:31:23,710 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:31:23,734 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37e88381-15a0-4ff0-b371-cc5a4426086f/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Forceful destruction successful, exit code 0 [2021-10-21 19:31:23,734 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:31:23,734 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37e88381-15a0-4ff0-b371-cc5a4426086f/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:31:23,735 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37e88381-15a0-4ff0-b371-cc5a4426086f/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:31:23,736 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37e88381-15a0-4ff0-b371-cc5a4426086f/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Waiting until timeout for monitored process [2021-10-21 19:31:23,736 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 19:31:23,745 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 19:31:23,745 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 19:31:23,745 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:31:23,745 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:31:23,746 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 19:31:23,746 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-21 19:31:23,747 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 19:31:23,748 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:31:23,772 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37e88381-15a0-4ff0-b371-cc5a4426086f/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Forceful destruction successful, exit code 0 [2021-10-21 19:31:23,772 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:31:23,773 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37e88381-15a0-4ff0-b371-cc5a4426086f/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:31:23,773 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37e88381-15a0-4ff0-b371-cc5a4426086f/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:31:23,774 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37e88381-15a0-4ff0-b371-cc5a4426086f/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Waiting until timeout for monitored process [2021-10-21 19:31:23,775 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 19:31:23,783 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 19:31:23,783 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 19:31:23,783 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:31:23,783 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:31:23,783 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 19:31:23,784 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-21 19:31:23,784 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 19:31:23,785 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:31:23,812 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37e88381-15a0-4ff0-b371-cc5a4426086f/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Forceful destruction successful, exit code 0 [2021-10-21 19:31:23,812 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:31:23,813 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37e88381-15a0-4ff0-b371-cc5a4426086f/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:31:23,813 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37e88381-15a0-4ff0-b371-cc5a4426086f/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:31:23,814 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37e88381-15a0-4ff0-b371-cc5a4426086f/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Waiting until timeout for monitored process [2021-10-21 19:31:23,815 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 19:31:23,824 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 19:31:23,824 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:31:23,824 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:31:23,824 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 19:31:23,828 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-21 19:31:23,828 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-21 19:31:23,865 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:31:23,889 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37e88381-15a0-4ff0-b371-cc5a4426086f/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Ended with exit code 0 [2021-10-21 19:31:23,890 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:31:23,890 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37e88381-15a0-4ff0-b371-cc5a4426086f/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:31:23,891 INFO L229 MonitoredProcess]: Starting monitored process 34 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37e88381-15a0-4ff0-b371-cc5a4426086f/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:31:23,891 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37e88381-15a0-4ff0-b371-cc5a4426086f/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Waiting until timeout for monitored process [2021-10-21 19:31:23,892 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 19:31:23,900 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 19:31:23,900 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:31:23,900 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:31:23,900 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 19:31:23,908 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-21 19:31:23,908 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-21 19:31:23,932 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-10-21 19:31:23,981 INFO L443 ModelExtractionUtils]: Simplification made 14 calls to the SMT solver. [2021-10-21 19:31:23,981 INFO L444 ModelExtractionUtils]: 11 out of 25 variables were initially zero. Simplification set additionally 11 variables to zero. [2021-10-21 19:31:23,982 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:31:23,982 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37e88381-15a0-4ff0-b371-cc5a4426086f/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:31:23,991 INFO L229 MonitoredProcess]: Starting monitored process 35 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37e88381-15a0-4ff0-b371-cc5a4426086f/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:31:24,056 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37e88381-15a0-4ff0-b371-cc5a4426086f/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Waiting until timeout for monitored process [2021-10-21 19:31:24,056 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-10-21 19:31:24,086 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2021-10-21 19:31:24,087 INFO L513 LassoAnalysis]: Proved termination. [2021-10-21 19:31:24,087 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(v_rep(select #length ULTIMATE.start_sep_~x.base)_1, ULTIMATE.start_sep_~i~0) = 9*v_rep(select #length ULTIMATE.start_sep_~x.base)_1 - 8*ULTIMATE.start_sep_~i~0 Supporting invariants [] [2021-10-21 19:31:24,162 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37e88381-15a0-4ff0-b371-cc5a4426086f/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Forceful destruction successful, exit code 0 [2021-10-21 19:31:24,209 INFO L297 tatePredicateManager]: 11 out of 11 supporting invariants were superfluous and have been removed [2021-10-21 19:31:24,222 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:31:24,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:31:24,253 INFO L263 TraceCheckSpWp]: Trace formula consists of 88 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-21 19:31:24,256 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 19:31:24,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:31:24,310 INFO L263 TraceCheckSpWp]: Trace formula consists of 15 conjuncts, 6 conjunts are in the unsatisfiable core [2021-10-21 19:31:24,310 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 19:31:24,385 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:31:24,385 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2021-10-21 19:31:24,386 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 30 states and 37 transitions. cyclomatic complexity: 12 Second operand has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:31:24,422 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 30 states and 37 transitions. cyclomatic complexity: 12. 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) Result 35 states and 46 transitions. Complement of second has 7 states. [2021-10-21 19:31:24,422 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2021-10-21 19:31:24,423 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:31:24,424 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 12 transitions. [2021-10-21 19:31:24,424 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 12 transitions. Stem has 14 letters. Loop has 3 letters. [2021-10-21 19:31:24,425 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-21 19:31:24,425 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 12 transitions. Stem has 17 letters. Loop has 3 letters. [2021-10-21 19:31:24,425 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-21 19:31:24,426 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 12 transitions. Stem has 14 letters. Loop has 6 letters. [2021-10-21 19:31:24,426 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-21 19:31:24,426 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 35 states and 46 transitions. [2021-10-21 19:31:24,427 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 8 [2021-10-21 19:31:24,428 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 35 states to 31 states and 39 transitions. [2021-10-21 19:31:24,428 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 17 [2021-10-21 19:31:24,428 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 18 [2021-10-21 19:31:24,428 INFO L73 IsDeterministic]: Start isDeterministic. Operand 31 states and 39 transitions. [2021-10-21 19:31:24,429 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-21 19:31:24,429 INFO L681 BuchiCegarLoop]: Abstraction has 31 states and 39 transitions. [2021-10-21 19:31:24,429 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states and 39 transitions. [2021-10-21 19:31:24,431 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 31. [2021-10-21 19:31:24,431 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31 states, 31 states have (on average 1.2580645161290323) internal successors, (39), 30 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:31:24,432 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 39 transitions. [2021-10-21 19:31:24,432 INFO L704 BuchiCegarLoop]: Abstraction has 31 states and 39 transitions. [2021-10-21 19:31:24,432 INFO L587 BuchiCegarLoop]: Abstraction has 31 states and 39 transitions. [2021-10-21 19:31:24,432 INFO L425 BuchiCegarLoop]: ======== Iteration 8============ [2021-10-21 19:31:24,432 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 31 states and 39 transitions. [2021-10-21 19:31:24,433 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 8 [2021-10-21 19:31:24,433 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-21 19:31:24,433 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-21 19:31:24,434 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [5, 5, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:31:24,434 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-10-21 19:31:24,435 INFO L791 eck$LassoCheckResult]: Stem: 753#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(10); 754#L-1 havoc main_#res;havoc main_#t~nondet8, main_#t~post7, main_~i~1, main_#t~ret9, main_#t~mem10, main_#t~mem11, main_#t~ret12, main_#t~mem13, main_#t~mem15, main_#t~post14, main_~i~2, main_#t~ret16, main_~#x~0.base, main_~#x~0.offset, main_~temp~0, main_~ret~1, main_~ret2~0, main_~ret5~0;call main_~#x~0.base, main_~#x~0.offset := #Ultimate.allocOnStack(20);havoc main_~temp~0;havoc main_~ret~1;havoc main_~ret2~0;havoc main_~ret5~0;main_~i~1 := 0; 762#L37-3 assume !!(main_~i~1 < 5);call write~int(main_#t~nondet8, main_~#x~0.base, main_~#x~0.offset + 4 * main_~i~1, 4);havoc main_#t~nondet8; 751#L37-2 main_#t~post7 := main_~i~1;main_~i~1 := 1 + main_#t~post7;havoc main_#t~post7; 752#L37-3 assume !!(main_~i~1 < 5);call write~int(main_#t~nondet8, main_~#x~0.base, main_~#x~0.offset + 4 * main_~i~1, 4);havoc main_#t~nondet8; 774#L37-2 main_#t~post7 := main_~i~1;main_~i~1 := 1 + main_#t~post7;havoc main_#t~post7; 781#L37-3 assume !!(main_~i~1 < 5);call write~int(main_#t~nondet8, main_~#x~0.base, main_~#x~0.offset + 4 * main_~i~1, 4);havoc main_#t~nondet8; 780#L37-2 main_#t~post7 := main_~i~1;main_~i~1 := 1 + main_#t~post7;havoc main_#t~post7; 779#L37-3 assume !!(main_~i~1 < 5);call write~int(main_#t~nondet8, main_~#x~0.base, main_~#x~0.offset + 4 * main_~i~1, 4);havoc main_#t~nondet8; 778#L37-2 main_#t~post7 := main_~i~1;main_~i~1 := 1 + main_#t~post7;havoc main_#t~post7; 777#L37-3 assume !!(main_~i~1 < 5);call write~int(main_#t~nondet8, main_~#x~0.base, main_~#x~0.offset + 4 * main_~i~1, 4);havoc main_#t~nondet8; 776#L37-2 main_#t~post7 := main_~i~1;main_~i~1 := 1 + main_#t~post7;havoc main_#t~post7; 775#L37-3 assume !(main_~i~1 < 5); 767#L37-4 sep_#in~x.base, sep_#in~x.offset := main_~#x~0.base, main_~#x~0.offset;havoc sep_#res;havoc sep_#t~mem4, sep_#t~post5, sep_#t~post6, sep_#t~post3, sep_~i~0, sep_~x.base, sep_~x.offset, sep_~ret~0;sep_~x.base, sep_~x.offset := sep_#in~x.base, sep_#in~x.offset;sep_~ret~0 := 0;sep_~i~0 := 0; 768#L18-3 assume !(sep_~i~0 < 5); 771#L18-4 sep_#res := (if sep_~ret~0 % 4294967296 <= 2147483647 then sep_~ret~0 % 4294967296 else sep_~ret~0 % 4294967296 - 4294967296); 755#L25 main_#t~ret9 := sep_#res;main_~ret~1 := main_#t~ret9;havoc main_#t~ret9;call main_#t~mem10 := read~int(main_~#x~0.base, main_~#x~0.offset, 4);main_~temp~0 := main_#t~mem10;havoc main_#t~mem10;call main_#t~mem11 := read~int(main_~#x~0.base, 4 + main_~#x~0.offset, 4);call write~int(main_#t~mem11, main_~#x~0.base, main_~#x~0.offset, 4);havoc main_#t~mem11;call write~int(main_~temp~0, main_~#x~0.base, 4 + main_~#x~0.offset, 4);sep_#in~x.base, sep_#in~x.offset := main_~#x~0.base, main_~#x~0.offset;havoc sep_#res;havoc sep_#t~mem4, sep_#t~post5, sep_#t~post6, sep_#t~post3, sep_~i~0, sep_~x.base, sep_~x.offset, sep_~ret~0;sep_~x.base, sep_~x.offset := sep_#in~x.base, sep_#in~x.offset;sep_~ret~0 := 0;sep_~i~0 := 0; 756#L18-8 [2021-10-21 19:31:24,435 INFO L793 eck$LassoCheckResult]: Loop: 756#L18-8 assume !!(sep_~i~0 < 5);call sep_#t~mem4 := read~int(sep_~x.base, sep_~x.offset + 4 * sep_~i~0, 4); 766#L20-2 assume 0 == (if sep_#t~mem4 < 0 && 0 != sep_#t~mem4 % 2 then sep_#t~mem4 % 2 - 2 else sep_#t~mem4 % 2);havoc sep_#t~mem4;sep_#t~post5 := sep_~ret~0;sep_~ret~0 := 1 + sep_#t~post5;havoc sep_#t~post5; 773#L18-7 sep_#t~post3 := sep_~i~0;sep_~i~0 := 1 + sep_#t~post3;havoc sep_#t~post3; 756#L18-8 [2021-10-21 19:31:24,435 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:31:24,435 INFO L82 PathProgramCache]: Analyzing trace with hash 1638581187, now seen corresponding path program 1 times [2021-10-21 19:31:24,435 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:31:24,436 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [572092982] [2021-10-21 19:31:24,436 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:31:24,436 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:31:24,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:31:24,472 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2021-10-21 19:31:24,473 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 19:31:24,473 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [572092982] [2021-10-21 19:31:24,473 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [572092982] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-21 19:31:24,473 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-21 19:31:24,473 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-21 19:31:24,473 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [425108510] [2021-10-21 19:31:24,474 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-10-21 19:31:24,474 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:31:24,474 INFO L82 PathProgramCache]: Analyzing trace with hash 74576, now seen corresponding path program 1 times [2021-10-21 19:31:24,474 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:31:24,475 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [916619756] [2021-10-21 19:31:24,475 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:31:24,475 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:31:24,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:31:24,483 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 19:31:24,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:31:24,502 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 19:31:24,574 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 19:31:24,576 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-21 19:31:24,576 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-21 19:31:24,576 INFO L87 Difference]: Start difference. First operand 31 states and 39 transitions. cyclomatic complexity: 13 Second operand has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:31:24,608 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:31:24,608 INFO L93 Difference]: Finished difference Result 39 states and 49 transitions. [2021-10-21 19:31:24,608 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-21 19:31:24,609 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 39 states and 49 transitions. [2021-10-21 19:31:24,611 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 8 [2021-10-21 19:31:24,614 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 39 states to 39 states and 49 transitions. [2021-10-21 19:31:24,615 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 24 [2021-10-21 19:31:24,615 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 24 [2021-10-21 19:31:24,616 INFO L73 IsDeterministic]: Start isDeterministic. Operand 39 states and 49 transitions. [2021-10-21 19:31:24,617 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-21 19:31:24,617 INFO L681 BuchiCegarLoop]: Abstraction has 39 states and 49 transitions. [2021-10-21 19:31:24,617 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states and 49 transitions. [2021-10-21 19:31:24,629 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 32. [2021-10-21 19:31:24,631 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32 states, 32 states have (on average 1.21875) internal successors, (39), 31 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:31:24,631 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 39 transitions. [2021-10-21 19:31:24,632 INFO L704 BuchiCegarLoop]: Abstraction has 32 states and 39 transitions. [2021-10-21 19:31:24,632 INFO L587 BuchiCegarLoop]: Abstraction has 32 states and 39 transitions. [2021-10-21 19:31:24,632 INFO L425 BuchiCegarLoop]: ======== Iteration 9============ [2021-10-21 19:31:24,632 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 32 states and 39 transitions. [2021-10-21 19:31:24,633 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 8 [2021-10-21 19:31:24,635 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-21 19:31:24,635 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-21 19:31:24,636 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:31:24,636 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-10-21 19:31:24,637 INFO L791 eck$LassoCheckResult]: Stem: 829#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(10); 830#L-1 havoc main_#res;havoc main_#t~nondet8, main_#t~post7, main_~i~1, main_#t~ret9, main_#t~mem10, main_#t~mem11, main_#t~ret12, main_#t~mem13, main_#t~mem15, main_#t~post14, main_~i~2, main_#t~ret16, main_~#x~0.base, main_~#x~0.offset, main_~temp~0, main_~ret~1, main_~ret2~0, main_~ret5~0;call main_~#x~0.base, main_~#x~0.offset := #Ultimate.allocOnStack(20);havoc main_~temp~0;havoc main_~ret~1;havoc main_~ret2~0;havoc main_~ret5~0;main_~i~1 := 0; 838#L37-3 assume !!(main_~i~1 < 5);call write~int(main_#t~nondet8, main_~#x~0.base, main_~#x~0.offset + 4 * main_~i~1, 4);havoc main_#t~nondet8; 827#L37-2 main_#t~post7 := main_~i~1;main_~i~1 := 1 + main_#t~post7;havoc main_#t~post7; 828#L37-3 assume !!(main_~i~1 < 5);call write~int(main_#t~nondet8, main_~#x~0.base, main_~#x~0.offset + 4 * main_~i~1, 4);havoc main_#t~nondet8; 851#L37-2 main_#t~post7 := main_~i~1;main_~i~1 := 1 + main_#t~post7;havoc main_#t~post7; 858#L37-3 assume !!(main_~i~1 < 5);call write~int(main_#t~nondet8, main_~#x~0.base, main_~#x~0.offset + 4 * main_~i~1, 4);havoc main_#t~nondet8; 857#L37-2 main_#t~post7 := main_~i~1;main_~i~1 := 1 + main_#t~post7;havoc main_#t~post7; 856#L37-3 assume !!(main_~i~1 < 5);call write~int(main_#t~nondet8, main_~#x~0.base, main_~#x~0.offset + 4 * main_~i~1, 4);havoc main_#t~nondet8; 855#L37-2 main_#t~post7 := main_~i~1;main_~i~1 := 1 + main_#t~post7;havoc main_#t~post7; 854#L37-3 assume !!(main_~i~1 < 5);call write~int(main_#t~nondet8, main_~#x~0.base, main_~#x~0.offset + 4 * main_~i~1, 4);havoc main_#t~nondet8; 853#L37-2 main_#t~post7 := main_~i~1;main_~i~1 := 1 + main_#t~post7;havoc main_#t~post7; 852#L37-3 assume !(main_~i~1 < 5); 843#L37-4 sep_#in~x.base, sep_#in~x.offset := main_~#x~0.base, main_~#x~0.offset;havoc sep_#res;havoc sep_#t~mem4, sep_#t~post5, sep_#t~post6, sep_#t~post3, sep_~i~0, sep_~x.base, sep_~x.offset, sep_~ret~0;sep_~x.base, sep_~x.offset := sep_#in~x.base, sep_#in~x.offset;sep_~ret~0 := 0;sep_~i~0 := 0; 844#L18-3 assume !!(sep_~i~0 < 5);call sep_#t~mem4 := read~int(sep_~x.base, sep_~x.offset + 4 * sep_~i~0, 4); 847#L20 assume !(0 == (if sep_#t~mem4 < 0 && 0 != sep_#t~mem4 % 2 then sep_#t~mem4 % 2 - 2 else sep_#t~mem4 % 2));havoc sep_#t~mem4;sep_#t~post6 := sep_~ret~0;sep_~ret~0 := sep_#t~post6 - 1;havoc sep_#t~post6; 845#L18-2 sep_#t~post3 := sep_~i~0;sep_~i~0 := 1 + sep_#t~post3;havoc sep_#t~post3; 846#L18-3 assume !(sep_~i~0 < 5); 848#L18-4 sep_#res := (if sep_~ret~0 % 4294967296 <= 2147483647 then sep_~ret~0 % 4294967296 else sep_~ret~0 % 4294967296 - 4294967296); 831#L25 main_#t~ret9 := sep_#res;main_~ret~1 := main_#t~ret9;havoc main_#t~ret9;call main_#t~mem10 := read~int(main_~#x~0.base, main_~#x~0.offset, 4);main_~temp~0 := main_#t~mem10;havoc main_#t~mem10;call main_#t~mem11 := read~int(main_~#x~0.base, 4 + main_~#x~0.offset, 4);call write~int(main_#t~mem11, main_~#x~0.base, main_~#x~0.offset, 4);havoc main_#t~mem11;call write~int(main_~temp~0, main_~#x~0.base, 4 + main_~#x~0.offset, 4);sep_#in~x.base, sep_#in~x.offset := main_~#x~0.base, main_~#x~0.offset;havoc sep_#res;havoc sep_#t~mem4, sep_#t~post5, sep_#t~post6, sep_#t~post3, sep_~i~0, sep_~x.base, sep_~x.offset, sep_~ret~0;sep_~x.base, sep_~x.offset := sep_#in~x.base, sep_#in~x.offset;sep_~ret~0 := 0;sep_~i~0 := 0; 832#L18-8 assume !!(sep_~i~0 < 5);call sep_#t~mem4 := read~int(sep_~x.base, sep_~x.offset + 4 * sep_~i~0, 4); 841#L20-2 [2021-10-21 19:31:24,637 INFO L793 eck$LassoCheckResult]: Loop: 841#L20-2 assume 0 == (if sep_#t~mem4 < 0 && 0 != sep_#t~mem4 % 2 then sep_#t~mem4 % 2 - 2 else sep_#t~mem4 % 2);havoc sep_#t~mem4;sep_#t~post5 := sep_~ret~0;sep_~ret~0 := 1 + sep_#t~post5;havoc sep_#t~post5; 849#L18-7 sep_#t~post3 := sep_~i~0;sep_~i~0 := 1 + sep_#t~post3;havoc sep_#t~post3; 850#L18-8 assume !!(sep_~i~0 < 5);call sep_#t~mem4 := read~int(sep_~x.base, sep_~x.offset + 4 * sep_~i~0, 4); 841#L20-2 [2021-10-21 19:31:24,638 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:31:24,638 INFO L82 PathProgramCache]: Analyzing trace with hash -1567455174, now seen corresponding path program 1 times [2021-10-21 19:31:24,638 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:31:24,638 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [899515203] [2021-10-21 19:31:24,638 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:31:24,639 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:31:24,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:31:24,701 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2021-10-21 19:31:24,701 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 19:31:24,701 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [899515203] [2021-10-21 19:31:24,702 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [899515203] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 19:31:24,702 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [550950513] [2021-10-21 19:31:24,702 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:31:24,702 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-21 19:31:24,703 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37e88381-15a0-4ff0-b371-cc5a4426086f/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:31:24,716 INFO L229 MonitoredProcess]: Starting monitored process 36 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37e88381-15a0-4ff0-b371-cc5a4426086f/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-21 19:31:24,736 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37e88381-15a0-4ff0-b371-cc5a4426086f/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (36)] Waiting until timeout for monitored process [2021-10-21 19:31:24,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:31:24,843 INFO L263 TraceCheckSpWp]: Trace formula consists of 133 conjuncts, 3 conjunts are in the unsatisfiable core [2021-10-21 19:31:24,845 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 19:31:24,907 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2021-10-21 19:31:24,907 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [550950513] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 19:31:24,907 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-21 19:31:24,907 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 5 [2021-10-21 19:31:24,908 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1725047799] [2021-10-21 19:31:24,908 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-10-21 19:31:24,909 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:31:24,909 INFO L82 PathProgramCache]: Analyzing trace with hash 77576, now seen corresponding path program 2 times [2021-10-21 19:31:24,909 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:31:24,909 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [430319215] [2021-10-21 19:31:24,910 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:31:24,910 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:31:24,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:31:24,918 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 19:31:24,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:31:24,925 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 19:31:25,064 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 19:31:25,064 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-21 19:31:25,065 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2021-10-21 19:31:25,065 INFO L87 Difference]: Start difference. First operand 32 states and 39 transitions. cyclomatic complexity: 12 Second operand has 5 states, 5 states have (on average 3.4) internal successors, (17), 5 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:31:25,070 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37e88381-15a0-4ff0-b371-cc5a4426086f/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Forceful destruction successful, exit code 0 [2021-10-21 19:31:25,124 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:31:25,124 INFO L93 Difference]: Finished difference Result 48 states and 61 transitions. [2021-10-21 19:31:25,125 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-21 19:31:25,125 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 48 states and 61 transitions. [2021-10-21 19:31:25,127 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 8 [2021-10-21 19:31:25,130 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 48 states to 48 states and 61 transitions. [2021-10-21 19:31:25,130 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 30 [2021-10-21 19:31:25,130 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 30 [2021-10-21 19:31:25,130 INFO L73 IsDeterministic]: Start isDeterministic. Operand 48 states and 61 transitions. [2021-10-21 19:31:25,136 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-21 19:31:25,136 INFO L681 BuchiCegarLoop]: Abstraction has 48 states and 61 transitions. [2021-10-21 19:31:25,137 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states and 61 transitions. [2021-10-21 19:31:25,145 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 38. [2021-10-21 19:31:25,147 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38 states, 38 states have (on average 1.236842105263158) internal successors, (47), 37 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:31:25,148 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 47 transitions. [2021-10-21 19:31:25,151 INFO L704 BuchiCegarLoop]: Abstraction has 38 states and 47 transitions. [2021-10-21 19:31:25,152 INFO L587 BuchiCegarLoop]: Abstraction has 38 states and 47 transitions. [2021-10-21 19:31:25,152 INFO L425 BuchiCegarLoop]: ======== Iteration 10============ [2021-10-21 19:31:25,153 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 38 states and 47 transitions. [2021-10-21 19:31:25,153 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 8 [2021-10-21 19:31:25,153 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-21 19:31:25,154 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-21 19:31:25,155 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [5, 5, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:31:25,155 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-10-21 19:31:25,156 INFO L791 eck$LassoCheckResult]: Stem: 977#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(10); 978#L-1 havoc main_#res;havoc main_#t~nondet8, main_#t~post7, main_~i~1, main_#t~ret9, main_#t~mem10, main_#t~mem11, main_#t~ret12, main_#t~mem13, main_#t~mem15, main_#t~post14, main_~i~2, main_#t~ret16, main_~#x~0.base, main_~#x~0.offset, main_~temp~0, main_~ret~1, main_~ret2~0, main_~ret5~0;call main_~#x~0.base, main_~#x~0.offset := #Ultimate.allocOnStack(20);havoc main_~temp~0;havoc main_~ret~1;havoc main_~ret2~0;havoc main_~ret5~0;main_~i~1 := 0; 986#L37-3 assume !!(main_~i~1 < 5);call write~int(main_#t~nondet8, main_~#x~0.base, main_~#x~0.offset + 4 * main_~i~1, 4);havoc main_#t~nondet8; 975#L37-2 main_#t~post7 := main_~i~1;main_~i~1 := 1 + main_#t~post7;havoc main_#t~post7; 976#L37-3 assume !!(main_~i~1 < 5);call write~int(main_#t~nondet8, main_~#x~0.base, main_~#x~0.offset + 4 * main_~i~1, 4);havoc main_#t~nondet8; 1002#L37-2 main_#t~post7 := main_~i~1;main_~i~1 := 1 + main_#t~post7;havoc main_#t~post7; 1011#L37-3 assume !!(main_~i~1 < 5);call write~int(main_#t~nondet8, main_~#x~0.base, main_~#x~0.offset + 4 * main_~i~1, 4);havoc main_#t~nondet8; 1010#L37-2 main_#t~post7 := main_~i~1;main_~i~1 := 1 + main_#t~post7;havoc main_#t~post7; 1009#L37-3 assume !!(main_~i~1 < 5);call write~int(main_#t~nondet8, main_~#x~0.base, main_~#x~0.offset + 4 * main_~i~1, 4);havoc main_#t~nondet8; 1008#L37-2 main_#t~post7 := main_~i~1;main_~i~1 := 1 + main_#t~post7;havoc main_#t~post7; 1007#L37-3 assume !!(main_~i~1 < 5);call write~int(main_#t~nondet8, main_~#x~0.base, main_~#x~0.offset + 4 * main_~i~1, 4);havoc main_#t~nondet8; 1006#L37-2 main_#t~post7 := main_~i~1;main_~i~1 := 1 + main_#t~post7;havoc main_#t~post7; 1005#L37-3 assume !(main_~i~1 < 5); 992#L37-4 sep_#in~x.base, sep_#in~x.offset := main_~#x~0.base, main_~#x~0.offset;havoc sep_#res;havoc sep_#t~mem4, sep_#t~post5, sep_#t~post6, sep_#t~post3, sep_~i~0, sep_~x.base, sep_~x.offset, sep_~ret~0;sep_~x.base, sep_~x.offset := sep_#in~x.base, sep_#in~x.offset;sep_~ret~0 := 0;sep_~i~0 := 0; 993#L18-3 assume !!(sep_~i~0 < 5);call sep_#t~mem4 := read~int(sep_~x.base, sep_~x.offset + 4 * sep_~i~0, 4); 997#L20 assume !(0 == (if sep_#t~mem4 < 0 && 0 != sep_#t~mem4 % 2 then sep_#t~mem4 % 2 - 2 else sep_#t~mem4 % 2));havoc sep_#t~mem4;sep_#t~post6 := sep_~ret~0;sep_~ret~0 := sep_#t~post6 - 1;havoc sep_#t~post6; 1003#L18-2 sep_#t~post3 := sep_~i~0;sep_~i~0 := 1 + sep_#t~post3;havoc sep_#t~post3; 998#L18-3 assume !!(sep_~i~0 < 5);call sep_#t~mem4 := read~int(sep_~x.base, sep_~x.offset + 4 * sep_~i~0, 4); 999#L20 assume !(0 == (if sep_#t~mem4 < 0 && 0 != sep_#t~mem4 % 2 then sep_#t~mem4 % 2 - 2 else sep_#t~mem4 % 2));havoc sep_#t~mem4;sep_#t~post6 := sep_~ret~0;sep_~ret~0 := sep_#t~post6 - 1;havoc sep_#t~post6; 994#L18-2 sep_#t~post3 := sep_~i~0;sep_~i~0 := 1 + sep_#t~post3;havoc sep_#t~post3; 995#L18-3 assume !(sep_~i~0 < 5); 1000#L18-4 sep_#res := (if sep_~ret~0 % 4294967296 <= 2147483647 then sep_~ret~0 % 4294967296 else sep_~ret~0 % 4294967296 - 4294967296); 979#L25 main_#t~ret9 := sep_#res;main_~ret~1 := main_#t~ret9;havoc main_#t~ret9;call main_#t~mem10 := read~int(main_~#x~0.base, main_~#x~0.offset, 4);main_~temp~0 := main_#t~mem10;havoc main_#t~mem10;call main_#t~mem11 := read~int(main_~#x~0.base, 4 + main_~#x~0.offset, 4);call write~int(main_#t~mem11, main_~#x~0.base, main_~#x~0.offset, 4);havoc main_#t~mem11;call write~int(main_~temp~0, main_~#x~0.base, 4 + main_~#x~0.offset, 4);sep_#in~x.base, sep_#in~x.offset := main_~#x~0.base, main_~#x~0.offset;havoc sep_#res;havoc sep_#t~mem4, sep_#t~post5, sep_#t~post6, sep_#t~post3, sep_~i~0, sep_~x.base, sep_~x.offset, sep_~ret~0;sep_~x.base, sep_~x.offset := sep_#in~x.base, sep_#in~x.offset;sep_~ret~0 := 0;sep_~i~0 := 0; 980#L18-8 assume !!(sep_~i~0 < 5);call sep_#t~mem4 := read~int(sep_~x.base, sep_~x.offset + 4 * sep_~i~0, 4); 1012#L20-2 assume !(0 == (if sep_#t~mem4 < 0 && 0 != sep_#t~mem4 % 2 then sep_#t~mem4 % 2 - 2 else sep_#t~mem4 % 2));havoc sep_#t~mem4;sep_#t~post6 := sep_~ret~0;sep_~ret~0 := sep_#t~post6 - 1;havoc sep_#t~post6; 1001#L18-7 sep_#t~post3 := sep_~i~0;sep_~i~0 := 1 + sep_#t~post3;havoc sep_#t~post3; 989#L18-8 assume !!(sep_~i~0 < 5);call sep_#t~mem4 := read~int(sep_~x.base, sep_~x.offset + 4 * sep_~i~0, 4); 990#L20-2 [2021-10-21 19:31:25,156 INFO L793 eck$LassoCheckResult]: Loop: 990#L20-2 assume 0 == (if sep_#t~mem4 < 0 && 0 != sep_#t~mem4 % 2 then sep_#t~mem4 % 2 - 2 else sep_#t~mem4 % 2);havoc sep_#t~mem4;sep_#t~post5 := sep_~ret~0;sep_~ret~0 := 1 + sep_#t~post5;havoc sep_#t~post5; 996#L18-7 sep_#t~post3 := sep_~i~0;sep_~i~0 := 1 + sep_#t~post3;havoc sep_#t~post3; 1004#L18-8 assume !!(sep_~i~0 < 5);call sep_#t~mem4 := read~int(sep_~x.base, sep_~x.offset + 4 * sep_~i~0, 4); 990#L20-2 [2021-10-21 19:31:25,156 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:31:25,157 INFO L82 PathProgramCache]: Analyzing trace with hash -1248848095, now seen corresponding path program 1 times [2021-10-21 19:31:25,157 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:31:25,157 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [562116692] [2021-10-21 19:31:25,157 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:31:25,158 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:31:25,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:31:25,271 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2021-10-21 19:31:25,272 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 19:31:25,273 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [562116692] [2021-10-21 19:31:25,273 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [562116692] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 19:31:25,273 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [513732948] [2021-10-21 19:31:25,273 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:31:25,274 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-21 19:31:25,274 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37e88381-15a0-4ff0-b371-cc5a4426086f/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:31:25,277 INFO L229 MonitoredProcess]: Starting monitored process 37 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37e88381-15a0-4ff0-b371-cc5a4426086f/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-21 19:31:25,304 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37e88381-15a0-4ff0-b371-cc5a4426086f/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (37)] Waiting until timeout for monitored process [2021-10-21 19:31:25,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:31:25,397 INFO L263 TraceCheckSpWp]: Trace formula consists of 157 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-21 19:31:25,399 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 19:31:25,487 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2021-10-21 19:31:25,488 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [513732948] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 19:31:25,488 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-21 19:31:25,488 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 6 [2021-10-21 19:31:25,488 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [359385049] [2021-10-21 19:31:25,489 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-10-21 19:31:25,490 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:31:25,490 INFO L82 PathProgramCache]: Analyzing trace with hash 77576, now seen corresponding path program 3 times [2021-10-21 19:31:25,490 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:31:25,490 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [231642475] [2021-10-21 19:31:25,490 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:31:25,491 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:31:25,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:31:25,504 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 19:31:25,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:31:25,513 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 19:31:25,579 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 19:31:25,579 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-21 19:31:25,580 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2021-10-21 19:31:25,580 INFO L87 Difference]: Start difference. First operand 38 states and 47 transitions. cyclomatic complexity: 14 Second operand has 6 states, 6 states have (on average 3.6666666666666665) internal successors, (22), 6 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:31:25,639 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:31:25,639 INFO L93 Difference]: Finished difference Result 57 states and 73 transitions. [2021-10-21 19:31:25,639 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-21 19:31:25,640 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 57 states and 73 transitions. [2021-10-21 19:31:25,641 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 8 [2021-10-21 19:31:25,642 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 57 states to 57 states and 73 transitions. [2021-10-21 19:31:25,642 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 36 [2021-10-21 19:31:25,643 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 36 [2021-10-21 19:31:25,643 INFO L73 IsDeterministic]: Start isDeterministic. Operand 57 states and 73 transitions. [2021-10-21 19:31:25,643 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-21 19:31:25,643 INFO L681 BuchiCegarLoop]: Abstraction has 57 states and 73 transitions. [2021-10-21 19:31:25,644 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57 states and 73 transitions. [2021-10-21 19:31:25,657 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57 to 44. [2021-10-21 19:31:25,658 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44 states, 44 states have (on average 1.25) internal successors, (55), 43 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:31:25,659 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 55 transitions. [2021-10-21 19:31:25,659 INFO L704 BuchiCegarLoop]: Abstraction has 44 states and 55 transitions. [2021-10-21 19:31:25,659 INFO L587 BuchiCegarLoop]: Abstraction has 44 states and 55 transitions. [2021-10-21 19:31:25,659 INFO L425 BuchiCegarLoop]: ======== Iteration 11============ [2021-10-21 19:31:25,659 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 44 states and 55 transitions. [2021-10-21 19:31:25,660 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 8 [2021-10-21 19:31:25,660 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-21 19:31:25,660 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-21 19:31:25,662 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [5, 5, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:31:25,662 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-10-21 19:31:25,663 INFO L791 eck$LassoCheckResult]: Stem: 1159#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(10); 1160#L-1 havoc main_#res;havoc main_#t~nondet8, main_#t~post7, main_~i~1, main_#t~ret9, main_#t~mem10, main_#t~mem11, main_#t~ret12, main_#t~mem13, main_#t~mem15, main_#t~post14, main_~i~2, main_#t~ret16, main_~#x~0.base, main_~#x~0.offset, main_~temp~0, main_~ret~1, main_~ret2~0, main_~ret5~0;call main_~#x~0.base, main_~#x~0.offset := #Ultimate.allocOnStack(20);havoc main_~temp~0;havoc main_~ret~1;havoc main_~ret2~0;havoc main_~ret5~0;main_~i~1 := 0; 1168#L37-3 assume !!(main_~i~1 < 5);call write~int(main_#t~nondet8, main_~#x~0.base, main_~#x~0.offset + 4 * main_~i~1, 4);havoc main_#t~nondet8; 1157#L37-2 main_#t~post7 := main_~i~1;main_~i~1 := 1 + main_#t~post7;havoc main_#t~post7; 1158#L37-3 assume !!(main_~i~1 < 5);call write~int(main_#t~nondet8, main_~#x~0.base, main_~#x~0.offset + 4 * main_~i~1, 4);havoc main_#t~nondet8; 1185#L37-2 main_#t~post7 := main_~i~1;main_~i~1 := 1 + main_#t~post7;havoc main_#t~post7; 1197#L37-3 assume !!(main_~i~1 < 5);call write~int(main_#t~nondet8, main_~#x~0.base, main_~#x~0.offset + 4 * main_~i~1, 4);havoc main_#t~nondet8; 1196#L37-2 main_#t~post7 := main_~i~1;main_~i~1 := 1 + main_#t~post7;havoc main_#t~post7; 1195#L37-3 assume !!(main_~i~1 < 5);call write~int(main_#t~nondet8, main_~#x~0.base, main_~#x~0.offset + 4 * main_~i~1, 4);havoc main_#t~nondet8; 1194#L37-2 main_#t~post7 := main_~i~1;main_~i~1 := 1 + main_#t~post7;havoc main_#t~post7; 1193#L37-3 assume !!(main_~i~1 < 5);call write~int(main_#t~nondet8, main_~#x~0.base, main_~#x~0.offset + 4 * main_~i~1, 4);havoc main_#t~nondet8; 1192#L37-2 main_#t~post7 := main_~i~1;main_~i~1 := 1 + main_#t~post7;havoc main_#t~post7; 1191#L37-3 assume !(main_~i~1 < 5); 1174#L37-4 sep_#in~x.base, sep_#in~x.offset := main_~#x~0.base, main_~#x~0.offset;havoc sep_#res;havoc sep_#t~mem4, sep_#t~post5, sep_#t~post6, sep_#t~post3, sep_~i~0, sep_~x.base, sep_~x.offset, sep_~ret~0;sep_~x.base, sep_~x.offset := sep_#in~x.base, sep_#in~x.offset;sep_~ret~0 := 0;sep_~i~0 := 0; 1175#L18-3 assume !!(sep_~i~0 < 5);call sep_#t~mem4 := read~int(sep_~x.base, sep_~x.offset + 4 * sep_~i~0, 4); 1178#L20 assume !(0 == (if sep_#t~mem4 < 0 && 0 != sep_#t~mem4 % 2 then sep_#t~mem4 % 2 - 2 else sep_#t~mem4 % 2));havoc sep_#t~mem4;sep_#t~post6 := sep_~ret~0;sep_~ret~0 := sep_#t~post6 - 1;havoc sep_#t~post6; 1200#L18-2 sep_#t~post3 := sep_~i~0;sep_~i~0 := 1 + sep_#t~post3;havoc sep_#t~post3; 1199#L18-3 assume !!(sep_~i~0 < 5);call sep_#t~mem4 := read~int(sep_~x.base, sep_~x.offset + 4 * sep_~i~0, 4); 1186#L20 assume !(0 == (if sep_#t~mem4 < 0 && 0 != sep_#t~mem4 % 2 then sep_#t~mem4 % 2 - 2 else sep_#t~mem4 % 2));havoc sep_#t~mem4;sep_#t~post6 := sep_~ret~0;sep_~ret~0 := sep_#t~post6 - 1;havoc sep_#t~post6; 1176#L18-2 sep_#t~post3 := sep_~i~0;sep_~i~0 := 1 + sep_#t~post3;havoc sep_#t~post3; 1177#L18-3 assume !!(sep_~i~0 < 5);call sep_#t~mem4 := read~int(sep_~x.base, sep_~x.offset + 4 * sep_~i~0, 4); 1179#L20 assume !(0 == (if sep_#t~mem4 < 0 && 0 != sep_#t~mem4 % 2 then sep_#t~mem4 % 2 - 2 else sep_#t~mem4 % 2));havoc sep_#t~mem4;sep_#t~post6 := sep_~ret~0;sep_~ret~0 := sep_#t~post6 - 1;havoc sep_#t~post6; 1188#L18-2 sep_#t~post3 := sep_~i~0;sep_~i~0 := 1 + sep_#t~post3;havoc sep_#t~post3; 1187#L18-3 assume !(sep_~i~0 < 5); 1180#L18-4 sep_#res := (if sep_~ret~0 % 4294967296 <= 2147483647 then sep_~ret~0 % 4294967296 else sep_~ret~0 % 4294967296 - 4294967296); 1161#L25 main_#t~ret9 := sep_#res;main_~ret~1 := main_#t~ret9;havoc main_#t~ret9;call main_#t~mem10 := read~int(main_~#x~0.base, main_~#x~0.offset, 4);main_~temp~0 := main_#t~mem10;havoc main_#t~mem10;call main_#t~mem11 := read~int(main_~#x~0.base, 4 + main_~#x~0.offset, 4);call write~int(main_#t~mem11, main_~#x~0.base, main_~#x~0.offset, 4);havoc main_#t~mem11;call write~int(main_~temp~0, main_~#x~0.base, 4 + main_~#x~0.offset, 4);sep_#in~x.base, sep_#in~x.offset := main_~#x~0.base, main_~#x~0.offset;havoc sep_#res;havoc sep_#t~mem4, sep_#t~post5, sep_#t~post6, sep_#t~post3, sep_~i~0, sep_~x.base, sep_~x.offset, sep_~ret~0;sep_~x.base, sep_~x.offset := sep_#in~x.base, sep_#in~x.offset;sep_~ret~0 := 0;sep_~i~0 := 0; 1162#L18-8 assume !!(sep_~i~0 < 5);call sep_#t~mem4 := read~int(sep_~x.base, sep_~x.offset + 4 * sep_~i~0, 4); 1198#L20-2 assume !(0 == (if sep_#t~mem4 < 0 && 0 != sep_#t~mem4 % 2 then sep_#t~mem4 % 2 - 2 else sep_#t~mem4 % 2));havoc sep_#t~mem4;sep_#t~post6 := sep_~ret~0;sep_~ret~0 := sep_#t~post6 - 1;havoc sep_#t~post6; 1183#L18-7 sep_#t~post3 := sep_~i~0;sep_~i~0 := 1 + sep_#t~post3;havoc sep_#t~post3; 1184#L18-8 assume !!(sep_~i~0 < 5);call sep_#t~mem4 := read~int(sep_~x.base, sep_~x.offset + 4 * sep_~i~0, 4); 1181#L20-2 assume !(0 == (if sep_#t~mem4 < 0 && 0 != sep_#t~mem4 % 2 then sep_#t~mem4 % 2 - 2 else sep_#t~mem4 % 2));havoc sep_#t~mem4;sep_#t~post6 := sep_~ret~0;sep_~ret~0 := sep_#t~post6 - 1;havoc sep_#t~post6; 1182#L18-7 sep_#t~post3 := sep_~i~0;sep_~i~0 := 1 + sep_#t~post3;havoc sep_#t~post3; 1171#L18-8 assume !!(sep_~i~0 < 5);call sep_#t~mem4 := read~int(sep_~x.base, sep_~x.offset + 4 * sep_~i~0, 4); 1172#L20-2 [2021-10-21 19:31:25,663 INFO L793 eck$LassoCheckResult]: Loop: 1172#L20-2 assume 0 == (if sep_#t~mem4 < 0 && 0 != sep_#t~mem4 % 2 then sep_#t~mem4 % 2 - 2 else sep_#t~mem4 % 2);havoc sep_#t~mem4;sep_#t~post5 := sep_~ret~0;sep_~ret~0 := 1 + sep_#t~post5;havoc sep_#t~post5; 1190#L18-7 sep_#t~post3 := sep_~i~0;sep_~i~0 := 1 + sep_#t~post3;havoc sep_#t~post3; 1189#L18-8 assume !!(sep_~i~0 < 5);call sep_#t~mem4 := read~int(sep_~x.base, sep_~x.offset + 4 * sep_~i~0, 4); 1172#L20-2 [2021-10-21 19:31:25,664 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:31:25,664 INFO L82 PathProgramCache]: Analyzing trace with hash -1685621030, now seen corresponding path program 2 times [2021-10-21 19:31:25,664 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:31:25,665 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [984493865] [2021-10-21 19:31:25,665 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:31:25,665 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:31:25,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:31:25,767 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2021-10-21 19:31:25,767 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 19:31:25,768 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [984493865] [2021-10-21 19:31:25,768 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [984493865] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 19:31:25,768 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [700454856] [2021-10-21 19:31:25,768 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-21 19:31:25,769 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-21 19:31:25,769 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37e88381-15a0-4ff0-b371-cc5a4426086f/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:31:25,776 INFO L229 MonitoredProcess]: Starting monitored process 38 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37e88381-15a0-4ff0-b371-cc5a4426086f/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-21 19:31:25,800 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37e88381-15a0-4ff0-b371-cc5a4426086f/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (38)] Waiting until timeout for monitored process [2021-10-21 19:31:25,902 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-10-21 19:31:25,902 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-21 19:31:25,904 INFO L263 TraceCheckSpWp]: Trace formula consists of 181 conjuncts, 5 conjunts are in the unsatisfiable core [2021-10-21 19:31:25,906 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 19:31:26,009 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2021-10-21 19:31:26,009 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [700454856] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 19:31:26,009 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-21 19:31:26,010 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 7 [2021-10-21 19:31:26,011 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1500388620] [2021-10-21 19:31:26,012 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-10-21 19:31:26,012 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:31:26,013 INFO L82 PathProgramCache]: Analyzing trace with hash 77576, now seen corresponding path program 4 times [2021-10-21 19:31:26,013 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:31:26,013 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1231011618] [2021-10-21 19:31:26,013 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:31:26,013 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:31:26,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:31:26,027 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 19:31:26,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:31:26,039 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 19:31:26,106 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 19:31:26,107 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-10-21 19:31:26,108 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2021-10-21 19:31:26,108 INFO L87 Difference]: Start difference. First operand 44 states and 55 transitions. cyclomatic complexity: 16 Second operand has 7 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 7 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:31:26,178 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:31:26,179 INFO L93 Difference]: Finished difference Result 66 states and 85 transitions. [2021-10-21 19:31:26,179 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-21 19:31:26,179 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 66 states and 85 transitions. [2021-10-21 19:31:26,180 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 8 [2021-10-21 19:31:26,181 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 66 states to 66 states and 85 transitions. [2021-10-21 19:31:26,181 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 42 [2021-10-21 19:31:26,181 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 42 [2021-10-21 19:31:26,181 INFO L73 IsDeterministic]: Start isDeterministic. Operand 66 states and 85 transitions. [2021-10-21 19:31:26,182 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-21 19:31:26,182 INFO L681 BuchiCegarLoop]: Abstraction has 66 states and 85 transitions. [2021-10-21 19:31:26,182 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states and 85 transitions. [2021-10-21 19:31:26,184 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 50. [2021-10-21 19:31:26,184 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50 states, 50 states have (on average 1.26) internal successors, (63), 49 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:31:26,185 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 63 transitions. [2021-10-21 19:31:26,185 INFO L704 BuchiCegarLoop]: Abstraction has 50 states and 63 transitions. [2021-10-21 19:31:26,185 INFO L587 BuchiCegarLoop]: Abstraction has 50 states and 63 transitions. [2021-10-21 19:31:26,185 INFO L425 BuchiCegarLoop]: ======== Iteration 12============ [2021-10-21 19:31:26,185 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 50 states and 63 transitions. [2021-10-21 19:31:26,188 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 8 [2021-10-21 19:31:26,188 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-21 19:31:26,188 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-21 19:31:26,189 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [5, 5, 4, 4, 4, 4, 3, 3, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:31:26,190 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-10-21 19:31:26,190 INFO L791 eck$LassoCheckResult]: Stem: 1375#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(10); 1376#L-1 havoc main_#res;havoc main_#t~nondet8, main_#t~post7, main_~i~1, main_#t~ret9, main_#t~mem10, main_#t~mem11, main_#t~ret12, main_#t~mem13, main_#t~mem15, main_#t~post14, main_~i~2, main_#t~ret16, main_~#x~0.base, main_~#x~0.offset, main_~temp~0, main_~ret~1, main_~ret2~0, main_~ret5~0;call main_~#x~0.base, main_~#x~0.offset := #Ultimate.allocOnStack(20);havoc main_~temp~0;havoc main_~ret~1;havoc main_~ret2~0;havoc main_~ret5~0;main_~i~1 := 0; 1384#L37-3 assume !!(main_~i~1 < 5);call write~int(main_#t~nondet8, main_~#x~0.base, main_~#x~0.offset + 4 * main_~i~1, 4);havoc main_#t~nondet8; 1373#L37-2 main_#t~post7 := main_~i~1;main_~i~1 := 1 + main_#t~post7;havoc main_#t~post7; 1374#L37-3 assume !!(main_~i~1 < 5);call write~int(main_#t~nondet8, main_~#x~0.base, main_~#x~0.offset + 4 * main_~i~1, 4);havoc main_#t~nondet8; 1399#L37-2 main_#t~post7 := main_~i~1;main_~i~1 := 1 + main_#t~post7;havoc main_#t~post7; 1412#L37-3 assume !!(main_~i~1 < 5);call write~int(main_#t~nondet8, main_~#x~0.base, main_~#x~0.offset + 4 * main_~i~1, 4);havoc main_#t~nondet8; 1411#L37-2 main_#t~post7 := main_~i~1;main_~i~1 := 1 + main_#t~post7;havoc main_#t~post7; 1410#L37-3 assume !!(main_~i~1 < 5);call write~int(main_#t~nondet8, main_~#x~0.base, main_~#x~0.offset + 4 * main_~i~1, 4);havoc main_#t~nondet8; 1409#L37-2 main_#t~post7 := main_~i~1;main_~i~1 := 1 + main_#t~post7;havoc main_#t~post7; 1408#L37-3 assume !!(main_~i~1 < 5);call write~int(main_#t~nondet8, main_~#x~0.base, main_~#x~0.offset + 4 * main_~i~1, 4);havoc main_#t~nondet8; 1407#L37-2 main_#t~post7 := main_~i~1;main_~i~1 := 1 + main_#t~post7;havoc main_#t~post7; 1406#L37-3 assume !(main_~i~1 < 5); 1390#L37-4 sep_#in~x.base, sep_#in~x.offset := main_~#x~0.base, main_~#x~0.offset;havoc sep_#res;havoc sep_#t~mem4, sep_#t~post5, sep_#t~post6, sep_#t~post3, sep_~i~0, sep_~x.base, sep_~x.offset, sep_~ret~0;sep_~x.base, sep_~x.offset := sep_#in~x.base, sep_#in~x.offset;sep_~ret~0 := 0;sep_~i~0 := 0; 1391#L18-3 assume !!(sep_~i~0 < 5);call sep_#t~mem4 := read~int(sep_~x.base, sep_~x.offset + 4 * sep_~i~0, 4); 1394#L20 assume !(0 == (if sep_#t~mem4 < 0 && 0 != sep_#t~mem4 % 2 then sep_#t~mem4 % 2 - 2 else sep_#t~mem4 % 2));havoc sep_#t~mem4;sep_#t~post6 := sep_~ret~0;sep_~ret~0 := sep_#t~post6 - 1;havoc sep_#t~post6; 1392#L18-2 sep_#t~post3 := sep_~i~0;sep_~i~0 := 1 + sep_#t~post3;havoc sep_#t~post3; 1393#L18-3 assume !!(sep_~i~0 < 5);call sep_#t~mem4 := read~int(sep_~x.base, sep_~x.offset + 4 * sep_~i~0, 4); 1395#L20 assume !(0 == (if sep_#t~mem4 < 0 && 0 != sep_#t~mem4 % 2 then sep_#t~mem4 % 2 - 2 else sep_#t~mem4 % 2));havoc sep_#t~mem4;sep_#t~post6 := sep_~ret~0;sep_~ret~0 := sep_#t~post6 - 1;havoc sep_#t~post6; 1422#L18-2 sep_#t~post3 := sep_~i~0;sep_~i~0 := 1 + sep_#t~post3;havoc sep_#t~post3; 1421#L18-3 assume !!(sep_~i~0 < 5);call sep_#t~mem4 := read~int(sep_~x.base, sep_~x.offset + 4 * sep_~i~0, 4); 1420#L20 assume !(0 == (if sep_#t~mem4 < 0 && 0 != sep_#t~mem4 % 2 then sep_#t~mem4 % 2 - 2 else sep_#t~mem4 % 2));havoc sep_#t~mem4;sep_#t~post6 := sep_~ret~0;sep_~ret~0 := sep_#t~post6 - 1;havoc sep_#t~post6; 1419#L18-2 sep_#t~post3 := sep_~i~0;sep_~i~0 := 1 + sep_#t~post3;havoc sep_#t~post3; 1418#L18-3 assume !!(sep_~i~0 < 5);call sep_#t~mem4 := read~int(sep_~x.base, sep_~x.offset + 4 * sep_~i~0, 4); 1401#L20 assume !(0 == (if sep_#t~mem4 < 0 && 0 != sep_#t~mem4 % 2 then sep_#t~mem4 % 2 - 2 else sep_#t~mem4 % 2));havoc sep_#t~mem4;sep_#t~post6 := sep_~ret~0;sep_~ret~0 := sep_#t~post6 - 1;havoc sep_#t~post6; 1402#L18-2 sep_#t~post3 := sep_~i~0;sep_~i~0 := 1 + sep_#t~post3;havoc sep_#t~post3; 1400#L18-3 assume !(sep_~i~0 < 5); 1396#L18-4 sep_#res := (if sep_~ret~0 % 4294967296 <= 2147483647 then sep_~ret~0 % 4294967296 else sep_~ret~0 % 4294967296 - 4294967296); 1377#L25 main_#t~ret9 := sep_#res;main_~ret~1 := main_#t~ret9;havoc main_#t~ret9;call main_#t~mem10 := read~int(main_~#x~0.base, main_~#x~0.offset, 4);main_~temp~0 := main_#t~mem10;havoc main_#t~mem10;call main_#t~mem11 := read~int(main_~#x~0.base, 4 + main_~#x~0.offset, 4);call write~int(main_#t~mem11, main_~#x~0.base, main_~#x~0.offset, 4);havoc main_#t~mem11;call write~int(main_~temp~0, main_~#x~0.base, 4 + main_~#x~0.offset, 4);sep_#in~x.base, sep_#in~x.offset := main_~#x~0.base, main_~#x~0.offset;havoc sep_#res;havoc sep_#t~mem4, sep_#t~post5, sep_#t~post6, sep_#t~post3, sep_~i~0, sep_~x.base, sep_~x.offset, sep_~ret~0;sep_~x.base, sep_~x.offset := sep_#in~x.base, sep_#in~x.offset;sep_~ret~0 := 0;sep_~i~0 := 0; 1378#L18-8 assume !!(sep_~i~0 < 5);call sep_#t~mem4 := read~int(sep_~x.base, sep_~x.offset + 4 * sep_~i~0, 4); 1397#L20-2 assume !(0 == (if sep_#t~mem4 < 0 && 0 != sep_#t~mem4 % 2 then sep_#t~mem4 % 2 - 2 else sep_#t~mem4 % 2));havoc sep_#t~mem4;sep_#t~post6 := sep_~ret~0;sep_~ret~0 := sep_#t~post6 - 1;havoc sep_#t~post6; 1398#L18-7 sep_#t~post3 := sep_~i~0;sep_~i~0 := 1 + sep_#t~post3;havoc sep_#t~post3; 1387#L18-8 assume !!(sep_~i~0 < 5);call sep_#t~mem4 := read~int(sep_~x.base, sep_~x.offset + 4 * sep_~i~0, 4); 1388#L20-2 assume !(0 == (if sep_#t~mem4 < 0 && 0 != sep_#t~mem4 % 2 then sep_#t~mem4 % 2 - 2 else sep_#t~mem4 % 2));havoc sep_#t~mem4;sep_#t~post6 := sep_~ret~0;sep_~ret~0 := sep_#t~post6 - 1;havoc sep_#t~post6; 1417#L18-7 sep_#t~post3 := sep_~i~0;sep_~i~0 := 1 + sep_#t~post3;havoc sep_#t~post3; 1416#L18-8 assume !!(sep_~i~0 < 5);call sep_#t~mem4 := read~int(sep_~x.base, sep_~x.offset + 4 * sep_~i~0, 4); 1415#L20-2 assume !(0 == (if sep_#t~mem4 < 0 && 0 != sep_#t~mem4 % 2 then sep_#t~mem4 % 2 - 2 else sep_#t~mem4 % 2));havoc sep_#t~mem4;sep_#t~post6 := sep_~ret~0;sep_~ret~0 := sep_#t~post6 - 1;havoc sep_#t~post6; 1414#L18-7 sep_#t~post3 := sep_~i~0;sep_~i~0 := 1 + sep_#t~post3;havoc sep_#t~post3; 1413#L18-8 assume !!(sep_~i~0 < 5);call sep_#t~mem4 := read~int(sep_~x.base, sep_~x.offset + 4 * sep_~i~0, 4); 1404#L20-2 [2021-10-21 19:31:26,190 INFO L793 eck$LassoCheckResult]: Loop: 1404#L20-2 assume 0 == (if sep_#t~mem4 < 0 && 0 != sep_#t~mem4 % 2 then sep_#t~mem4 % 2 - 2 else sep_#t~mem4 % 2);havoc sep_#t~mem4;sep_#t~post5 := sep_~ret~0;sep_~ret~0 := 1 + sep_#t~post5;havoc sep_#t~post5; 1405#L18-7 sep_#t~post3 := sep_~i~0;sep_~i~0 := 1 + sep_#t~post3;havoc sep_#t~post3; 1403#L18-8 assume !!(sep_~i~0 < 5);call sep_#t~mem4 := read~int(sep_~x.base, sep_~x.offset + 4 * sep_~i~0, 4); 1404#L20-2 [2021-10-21 19:31:26,190 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:31:26,191 INFO L82 PathProgramCache]: Analyzing trace with hash -534676351, now seen corresponding path program 3 times [2021-10-21 19:31:26,191 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:31:26,191 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [601972770] [2021-10-21 19:31:26,191 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:31:26,191 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:31:26,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:31:26,302 INFO L134 CoverageAnalysis]: Checked inductivity of 59 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2021-10-21 19:31:26,302 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 19:31:26,303 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [601972770] [2021-10-21 19:31:26,303 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [601972770] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 19:31:26,303 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [660051594] [2021-10-21 19:31:26,303 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-10-21 19:31:26,303 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-21 19:31:26,303 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37e88381-15a0-4ff0-b371-cc5a4426086f/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:31:26,305 INFO L229 MonitoredProcess]: Starting monitored process 39 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37e88381-15a0-4ff0-b371-cc5a4426086f/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-21 19:31:26,331 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37e88381-15a0-4ff0-b371-cc5a4426086f/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (39)] Waiting until timeout for monitored process [2021-10-21 19:31:26,582 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) [2021-10-21 19:31:26,582 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-21 19:31:26,584 INFO L263 TraceCheckSpWp]: Trace formula consists of 197 conjuncts, 6 conjunts are in the unsatisfiable core [2021-10-21 19:31:26,587 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 19:31:26,708 INFO L134 CoverageAnalysis]: Checked inductivity of 59 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2021-10-21 19:31:26,708 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [660051594] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 19:31:26,709 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-21 19:31:26,709 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 8 [2021-10-21 19:31:26,713 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1839761043] [2021-10-21 19:31:26,715 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-10-21 19:31:26,715 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:31:26,715 INFO L82 PathProgramCache]: Analyzing trace with hash 77576, now seen corresponding path program 5 times [2021-10-21 19:31:26,715 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:31:26,716 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1618938804] [2021-10-21 19:31:26,716 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:31:26,716 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:31:26,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:31:26,726 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 19:31:26,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:31:26,735 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 19:31:26,804 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 19:31:26,805 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-10-21 19:31:26,805 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2021-10-21 19:31:26,805 INFO L87 Difference]: Start difference. First operand 50 states and 63 transitions. cyclomatic complexity: 18 Second operand has 8 states, 8 states have (on average 3.5) internal successors, (28), 8 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:31:26,907 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:31:26,908 INFO L93 Difference]: Finished difference Result 69 states and 88 transitions. [2021-10-21 19:31:26,908 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-21 19:31:26,908 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 69 states and 88 transitions. [2021-10-21 19:31:26,909 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 8 [2021-10-21 19:31:26,910 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 69 states to 69 states and 88 transitions. [2021-10-21 19:31:26,910 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 44 [2021-10-21 19:31:26,910 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 44 [2021-10-21 19:31:26,911 INFO L73 IsDeterministic]: Start isDeterministic. Operand 69 states and 88 transitions. [2021-10-21 19:31:26,911 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-21 19:31:26,911 INFO L681 BuchiCegarLoop]: Abstraction has 69 states and 88 transitions. [2021-10-21 19:31:26,911 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69 states and 88 transitions. [2021-10-21 19:31:26,913 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69 to 56. [2021-10-21 19:31:26,913 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 56 states, 56 states have (on average 1.2678571428571428) internal successors, (71), 55 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:31:26,914 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 71 transitions. [2021-10-21 19:31:26,914 INFO L704 BuchiCegarLoop]: Abstraction has 56 states and 71 transitions. [2021-10-21 19:31:26,914 INFO L587 BuchiCegarLoop]: Abstraction has 56 states and 71 transitions. [2021-10-21 19:31:26,915 INFO L425 BuchiCegarLoop]: ======== Iteration 13============ [2021-10-21 19:31:26,915 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 56 states and 71 transitions. [2021-10-21 19:31:26,915 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 8 [2021-10-21 19:31:26,915 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-21 19:31:26,916 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-21 19:31:26,917 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [5, 5, 5, 5, 5, 5, 4, 4, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:31:26,917 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-10-21 19:31:26,924 INFO L791 eck$LassoCheckResult]: Stem: 1619#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(10); 1620#L-1 havoc main_#res;havoc main_#t~nondet8, main_#t~post7, main_~i~1, main_#t~ret9, main_#t~mem10, main_#t~mem11, main_#t~ret12, main_#t~mem13, main_#t~mem15, main_#t~post14, main_~i~2, main_#t~ret16, main_~#x~0.base, main_~#x~0.offset, main_~temp~0, main_~ret~1, main_~ret2~0, main_~ret5~0;call main_~#x~0.base, main_~#x~0.offset := #Ultimate.allocOnStack(20);havoc main_~temp~0;havoc main_~ret~1;havoc main_~ret2~0;havoc main_~ret5~0;main_~i~1 := 0; 1628#L37-3 assume !!(main_~i~1 < 5);call write~int(main_#t~nondet8, main_~#x~0.base, main_~#x~0.offset + 4 * main_~i~1, 4);havoc main_#t~nondet8; 1617#L37-2 main_#t~post7 := main_~i~1;main_~i~1 := 1 + main_#t~post7;havoc main_#t~post7; 1618#L37-3 assume !!(main_~i~1 < 5);call write~int(main_#t~nondet8, main_~#x~0.base, main_~#x~0.offset + 4 * main_~i~1, 4);havoc main_#t~nondet8; 1643#L37-2 main_#t~post7 := main_~i~1;main_~i~1 := 1 + main_#t~post7;havoc main_#t~post7; 1672#L37-3 assume !!(main_~i~1 < 5);call write~int(main_#t~nondet8, main_~#x~0.base, main_~#x~0.offset + 4 * main_~i~1, 4);havoc main_#t~nondet8; 1671#L37-2 main_#t~post7 := main_~i~1;main_~i~1 := 1 + main_#t~post7;havoc main_#t~post7; 1670#L37-3 assume !!(main_~i~1 < 5);call write~int(main_#t~nondet8, main_~#x~0.base, main_~#x~0.offset + 4 * main_~i~1, 4);havoc main_#t~nondet8; 1669#L37-2 main_#t~post7 := main_~i~1;main_~i~1 := 1 + main_#t~post7;havoc main_#t~post7; 1668#L37-3 assume !!(main_~i~1 < 5);call write~int(main_#t~nondet8, main_~#x~0.base, main_~#x~0.offset + 4 * main_~i~1, 4);havoc main_#t~nondet8; 1667#L37-2 main_#t~post7 := main_~i~1;main_~i~1 := 1 + main_#t~post7;havoc main_#t~post7; 1666#L37-3 assume !(main_~i~1 < 5); 1634#L37-4 sep_#in~x.base, sep_#in~x.offset := main_~#x~0.base, main_~#x~0.offset;havoc sep_#res;havoc sep_#t~mem4, sep_#t~post5, sep_#t~post6, sep_#t~post3, sep_~i~0, sep_~x.base, sep_~x.offset, sep_~ret~0;sep_~x.base, sep_~x.offset := sep_#in~x.base, sep_#in~x.offset;sep_~ret~0 := 0;sep_~i~0 := 0; 1635#L18-3 assume !!(sep_~i~0 < 5);call sep_#t~mem4 := read~int(sep_~x.base, sep_~x.offset + 4 * sep_~i~0, 4); 1638#L20 assume !(0 == (if sep_#t~mem4 < 0 && 0 != sep_#t~mem4 % 2 then sep_#t~mem4 % 2 - 2 else sep_#t~mem4 % 2));havoc sep_#t~mem4;sep_#t~post6 := sep_~ret~0;sep_~ret~0 := sep_#t~post6 - 1;havoc sep_#t~post6; 1636#L18-2 sep_#t~post3 := sep_~i~0;sep_~i~0 := 1 + sep_#t~post3;havoc sep_#t~post3; 1637#L18-3 assume !!(sep_~i~0 < 5);call sep_#t~mem4 := read~int(sep_~x.base, sep_~x.offset + 4 * sep_~i~0, 4); 1639#L20 assume !(0 == (if sep_#t~mem4 < 0 && 0 != sep_#t~mem4 % 2 then sep_#t~mem4 % 2 - 2 else sep_#t~mem4 % 2));havoc sep_#t~mem4;sep_#t~post6 := sep_~ret~0;sep_~ret~0 := sep_#t~post6 - 1;havoc sep_#t~post6; 1663#L18-2 sep_#t~post3 := sep_~i~0;sep_~i~0 := 1 + sep_#t~post3;havoc sep_#t~post3; 1661#L18-3 assume !!(sep_~i~0 < 5);call sep_#t~mem4 := read~int(sep_~x.base, sep_~x.offset + 4 * sep_~i~0, 4); 1659#L20 assume !(0 == (if sep_#t~mem4 < 0 && 0 != sep_#t~mem4 % 2 then sep_#t~mem4 % 2 - 2 else sep_#t~mem4 % 2));havoc sep_#t~mem4;sep_#t~post6 := sep_~ret~0;sep_~ret~0 := sep_#t~post6 - 1;havoc sep_#t~post6; 1657#L18-2 sep_#t~post3 := sep_~i~0;sep_~i~0 := 1 + sep_#t~post3;havoc sep_#t~post3; 1655#L18-3 assume !!(sep_~i~0 < 5);call sep_#t~mem4 := read~int(sep_~x.base, sep_~x.offset + 4 * sep_~i~0, 4); 1653#L20 assume !(0 == (if sep_#t~mem4 < 0 && 0 != sep_#t~mem4 % 2 then sep_#t~mem4 % 2 - 2 else sep_#t~mem4 % 2));havoc sep_#t~mem4;sep_#t~post6 := sep_~ret~0;sep_~ret~0 := sep_#t~post6 - 1;havoc sep_#t~post6; 1651#L18-2 sep_#t~post3 := sep_~i~0;sep_~i~0 := 1 + sep_#t~post3;havoc sep_#t~post3; 1650#L18-3 assume !!(sep_~i~0 < 5);call sep_#t~mem4 := read~int(sep_~x.base, sep_~x.offset + 4 * sep_~i~0, 4); 1645#L20 assume !(0 == (if sep_#t~mem4 < 0 && 0 != sep_#t~mem4 % 2 then sep_#t~mem4 % 2 - 2 else sep_#t~mem4 % 2));havoc sep_#t~mem4;sep_#t~post6 := sep_~ret~0;sep_~ret~0 := sep_#t~post6 - 1;havoc sep_#t~post6; 1646#L18-2 sep_#t~post3 := sep_~i~0;sep_~i~0 := 1 + sep_#t~post3;havoc sep_#t~post3; 1644#L18-3 assume !(sep_~i~0 < 5); 1640#L18-4 sep_#res := (if sep_~ret~0 % 4294967296 <= 2147483647 then sep_~ret~0 % 4294967296 else sep_~ret~0 % 4294967296 - 4294967296); 1621#L25 main_#t~ret9 := sep_#res;main_~ret~1 := main_#t~ret9;havoc main_#t~ret9;call main_#t~mem10 := read~int(main_~#x~0.base, main_~#x~0.offset, 4);main_~temp~0 := main_#t~mem10;havoc main_#t~mem10;call main_#t~mem11 := read~int(main_~#x~0.base, 4 + main_~#x~0.offset, 4);call write~int(main_#t~mem11, main_~#x~0.base, main_~#x~0.offset, 4);havoc main_#t~mem11;call write~int(main_~temp~0, main_~#x~0.base, 4 + main_~#x~0.offset, 4);sep_#in~x.base, sep_#in~x.offset := main_~#x~0.base, main_~#x~0.offset;havoc sep_#res;havoc sep_#t~mem4, sep_#t~post5, sep_#t~post6, sep_#t~post3, sep_~i~0, sep_~x.base, sep_~x.offset, sep_~ret~0;sep_~x.base, sep_~x.offset := sep_#in~x.base, sep_#in~x.offset;sep_~ret~0 := 0;sep_~i~0 := 0; 1622#L18-8 assume !!(sep_~i~0 < 5);call sep_#t~mem4 := read~int(sep_~x.base, sep_~x.offset + 4 * sep_~i~0, 4); 1641#L20-2 assume !(0 == (if sep_#t~mem4 < 0 && 0 != sep_#t~mem4 % 2 then sep_#t~mem4 % 2 - 2 else sep_#t~mem4 % 2));havoc sep_#t~mem4;sep_#t~post6 := sep_~ret~0;sep_~ret~0 := sep_#t~post6 - 1;havoc sep_#t~post6; 1642#L18-7 sep_#t~post3 := sep_~i~0;sep_~i~0 := 1 + sep_#t~post3;havoc sep_#t~post3; 1631#L18-8 assume !!(sep_~i~0 < 5);call sep_#t~mem4 := read~int(sep_~x.base, sep_~x.offset + 4 * sep_~i~0, 4); 1632#L20-2 assume !(0 == (if sep_#t~mem4 < 0 && 0 != sep_#t~mem4 % 2 then sep_#t~mem4 % 2 - 2 else sep_#t~mem4 % 2));havoc sep_#t~mem4;sep_#t~post6 := sep_~ret~0;sep_~ret~0 := sep_#t~post6 - 1;havoc sep_#t~post6; 1665#L18-7 sep_#t~post3 := sep_~i~0;sep_~i~0 := 1 + sep_#t~post3;havoc sep_#t~post3; 1664#L18-8 assume !!(sep_~i~0 < 5);call sep_#t~mem4 := read~int(sep_~x.base, sep_~x.offset + 4 * sep_~i~0, 4); 1662#L20-2 assume !(0 == (if sep_#t~mem4 < 0 && 0 != sep_#t~mem4 % 2 then sep_#t~mem4 % 2 - 2 else sep_#t~mem4 % 2));havoc sep_#t~mem4;sep_#t~post6 := sep_~ret~0;sep_~ret~0 := sep_#t~post6 - 1;havoc sep_#t~post6; 1660#L18-7 sep_#t~post3 := sep_~i~0;sep_~i~0 := 1 + sep_#t~post3;havoc sep_#t~post3; 1658#L18-8 assume !!(sep_~i~0 < 5);call sep_#t~mem4 := read~int(sep_~x.base, sep_~x.offset + 4 * sep_~i~0, 4); 1656#L20-2 assume !(0 == (if sep_#t~mem4 < 0 && 0 != sep_#t~mem4 % 2 then sep_#t~mem4 % 2 - 2 else sep_#t~mem4 % 2));havoc sep_#t~mem4;sep_#t~post6 := sep_~ret~0;sep_~ret~0 := sep_#t~post6 - 1;havoc sep_#t~post6; 1654#L18-7 sep_#t~post3 := sep_~i~0;sep_~i~0 := 1 + sep_#t~post3;havoc sep_#t~post3; 1652#L18-8 assume !!(sep_~i~0 < 5);call sep_#t~mem4 := read~int(sep_~x.base, sep_~x.offset + 4 * sep_~i~0, 4); 1648#L20-2 [2021-10-21 19:31:26,925 INFO L793 eck$LassoCheckResult]: Loop: 1648#L20-2 assume 0 == (if sep_#t~mem4 < 0 && 0 != sep_#t~mem4 % 2 then sep_#t~mem4 % 2 - 2 else sep_#t~mem4 % 2);havoc sep_#t~mem4;sep_#t~post5 := sep_~ret~0;sep_~ret~0 := 1 + sep_#t~post5;havoc sep_#t~post5; 1649#L18-7 sep_#t~post3 := sep_~i~0;sep_~i~0 := 1 + sep_#t~post3;havoc sep_#t~post3; 1647#L18-8 assume !!(sep_~i~0 < 5);call sep_#t~mem4 := read~int(sep_~x.base, sep_~x.offset + 4 * sep_~i~0, 4); 1648#L20-2 [2021-10-21 19:31:26,925 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:31:26,926 INFO L82 PathProgramCache]: Analyzing trace with hash 1616244090, now seen corresponding path program 4 times [2021-10-21 19:31:26,926 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:31:26,926 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [918930630] [2021-10-21 19:31:26,926 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:31:26,927 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:31:27,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:31:27,061 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 19:31:27,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:31:27,160 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 19:31:27,160 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:31:27,160 INFO L82 PathProgramCache]: Analyzing trace with hash 77576, now seen corresponding path program 6 times [2021-10-21 19:31:27,160 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:31:27,160 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2046763084] [2021-10-21 19:31:27,161 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:31:27,161 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:31:27,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:31:27,165 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 19:31:27,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:31:27,169 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 19:31:27,169 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:31:27,169 INFO L82 PathProgramCache]: Analyzing trace with hash -1350622481, now seen corresponding path program 1 times [2021-10-21 19:31:27,169 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:31:27,169 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1149495552] [2021-10-21 19:31:27,170 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:31:27,170 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:31:27,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:31:27,243 INFO L134 CoverageAnalysis]: Checked inductivity of 95 backedges. 22 proven. 13 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2021-10-21 19:31:27,243 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 19:31:27,243 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1149495552] [2021-10-21 19:31:27,243 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1149495552] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 19:31:27,243 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [757252495] [2021-10-21 19:31:27,244 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:31:27,246 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-21 19:31:27,246 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37e88381-15a0-4ff0-b371-cc5a4426086f/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:31:27,260 INFO L229 MonitoredProcess]: Starting monitored process 40 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37e88381-15a0-4ff0-b371-cc5a4426086f/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-21 19:31:27,280 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37e88381-15a0-4ff0-b371-cc5a4426086f/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (40)] Waiting until timeout for monitored process [2021-10-21 19:31:27,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:31:27,411 INFO L263 TraceCheckSpWp]: Trace formula consists of 242 conjuncts, 7 conjunts are in the unsatisfiable core [2021-10-21 19:31:27,413 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 19:31:27,528 INFO L134 CoverageAnalysis]: Checked inductivity of 95 backedges. 35 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2021-10-21 19:31:27,528 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [757252495] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-21 19:31:27,528 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-10-21 19:31:27,529 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [7] total 8 [2021-10-21 19:31:27,529 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [537749571] [2021-10-21 19:31:27,579 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 19:31:27,580 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-10-21 19:31:27,580 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2021-10-21 19:31:27,580 INFO L87 Difference]: Start difference. First operand 56 states and 71 transitions. cyclomatic complexity: 20 Second operand has 8 states, 7 states have (on average 4.0) internal successors, (28), 8 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:31:27,685 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:31:27,686 INFO L93 Difference]: Finished difference Result 69 states and 85 transitions. [2021-10-21 19:31:27,687 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-10-21 19:31:27,687 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 69 states and 85 transitions. [2021-10-21 19:31:27,688 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-10-21 19:31:27,688 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 69 states to 52 states and 63 transitions. [2021-10-21 19:31:27,688 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 27 [2021-10-21 19:31:27,689 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 42 [2021-10-21 19:31:27,689 INFO L73 IsDeterministic]: Start isDeterministic. Operand 52 states and 63 transitions. [2021-10-21 19:31:27,689 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-21 19:31:27,689 INFO L681 BuchiCegarLoop]: Abstraction has 52 states and 63 transitions. [2021-10-21 19:31:27,689 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states and 63 transitions. [2021-10-21 19:31:27,691 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 52. [2021-10-21 19:31:27,691 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52 states, 52 states have (on average 1.2115384615384615) internal successors, (63), 51 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:31:27,692 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 63 transitions. [2021-10-21 19:31:27,692 INFO L704 BuchiCegarLoop]: Abstraction has 52 states and 63 transitions. [2021-10-21 19:31:27,692 INFO L587 BuchiCegarLoop]: Abstraction has 52 states and 63 transitions. [2021-10-21 19:31:27,692 INFO L425 BuchiCegarLoop]: ======== Iteration 14============ [2021-10-21 19:31:27,692 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 52 states and 63 transitions. [2021-10-21 19:31:27,693 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-10-21 19:31:27,693 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-21 19:31:27,693 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-21 19:31:27,696 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:31:27,696 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-10-21 19:31:27,702 INFO L791 eck$LassoCheckResult]: Stem: 1899#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(10); 1900#L-1 havoc main_#res;havoc main_#t~nondet8, main_#t~post7, main_~i~1, main_#t~ret9, main_#t~mem10, main_#t~mem11, main_#t~ret12, main_#t~mem13, main_#t~mem15, main_#t~post14, main_~i~2, main_#t~ret16, main_~#x~0.base, main_~#x~0.offset, main_~temp~0, main_~ret~1, main_~ret2~0, main_~ret5~0;call main_~#x~0.base, main_~#x~0.offset := #Ultimate.allocOnStack(20);havoc main_~temp~0;havoc main_~ret~1;havoc main_~ret2~0;havoc main_~ret5~0;main_~i~1 := 0; 1906#L37-3 assume !!(main_~i~1 < 5);call write~int(main_#t~nondet8, main_~#x~0.base, main_~#x~0.offset + 4 * main_~i~1, 4);havoc main_#t~nondet8; 1897#L37-2 main_#t~post7 := main_~i~1;main_~i~1 := 1 + main_#t~post7;havoc main_#t~post7; 1898#L37-3 assume !!(main_~i~1 < 5);call write~int(main_#t~nondet8, main_~#x~0.base, main_~#x~0.offset + 4 * main_~i~1, 4);havoc main_#t~nondet8; 1917#L37-2 main_#t~post7 := main_~i~1;main_~i~1 := 1 + main_#t~post7;havoc main_#t~post7; 1932#L37-3 assume !!(main_~i~1 < 5);call write~int(main_#t~nondet8, main_~#x~0.base, main_~#x~0.offset + 4 * main_~i~1, 4);havoc main_#t~nondet8; 1930#L37-2 main_#t~post7 := main_~i~1;main_~i~1 := 1 + main_#t~post7;havoc main_#t~post7; 1928#L37-3 assume !!(main_~i~1 < 5);call write~int(main_#t~nondet8, main_~#x~0.base, main_~#x~0.offset + 4 * main_~i~1, 4);havoc main_#t~nondet8; 1926#L37-2 main_#t~post7 := main_~i~1;main_~i~1 := 1 + main_#t~post7;havoc main_#t~post7; 1924#L37-3 assume !!(main_~i~1 < 5);call write~int(main_#t~nondet8, main_~#x~0.base, main_~#x~0.offset + 4 * main_~i~1, 4);havoc main_#t~nondet8; 1921#L37-2 main_#t~post7 := main_~i~1;main_~i~1 := 1 + main_#t~post7;havoc main_#t~post7; 1920#L37-3 assume !(main_~i~1 < 5); 1909#L37-4 sep_#in~x.base, sep_#in~x.offset := main_~#x~0.base, main_~#x~0.offset;havoc sep_#res;havoc sep_#t~mem4, sep_#t~post5, sep_#t~post6, sep_#t~post3, sep_~i~0, sep_~x.base, sep_~x.offset, sep_~ret~0;sep_~x.base, sep_~x.offset := sep_#in~x.base, sep_#in~x.offset;sep_~ret~0 := 0;sep_~i~0 := 0; 1910#L18-3 assume !!(sep_~i~0 < 5);call sep_#t~mem4 := read~int(sep_~x.base, sep_~x.offset + 4 * sep_~i~0, 4); 1948#L20 assume !(0 == (if sep_#t~mem4 < 0 && 0 != sep_#t~mem4 % 2 then sep_#t~mem4 % 2 - 2 else sep_#t~mem4 % 2));havoc sep_#t~mem4;sep_#t~post6 := sep_~ret~0;sep_~ret~0 := sep_#t~post6 - 1;havoc sep_#t~post6; 1911#L18-2 sep_#t~post3 := sep_~i~0;sep_~i~0 := 1 + sep_#t~post3;havoc sep_#t~post3; 1912#L18-3 assume !!(sep_~i~0 < 5);call sep_#t~mem4 := read~int(sep_~x.base, sep_~x.offset + 4 * sep_~i~0, 4); 1913#L20 assume !(0 == (if sep_#t~mem4 < 0 && 0 != sep_#t~mem4 % 2 then sep_#t~mem4 % 2 - 2 else sep_#t~mem4 % 2));havoc sep_#t~mem4;sep_#t~post6 := sep_~ret~0;sep_~ret~0 := sep_#t~post6 - 1;havoc sep_#t~post6; 1918#L18-2 sep_#t~post3 := sep_~i~0;sep_~i~0 := 1 + sep_#t~post3;havoc sep_#t~post3; 1947#L18-3 assume !!(sep_~i~0 < 5);call sep_#t~mem4 := read~int(sep_~x.base, sep_~x.offset + 4 * sep_~i~0, 4); 1946#L20 assume !(0 == (if sep_#t~mem4 < 0 && 0 != sep_#t~mem4 % 2 then sep_#t~mem4 % 2 - 2 else sep_#t~mem4 % 2));havoc sep_#t~mem4;sep_#t~post6 := sep_~ret~0;sep_~ret~0 := sep_#t~post6 - 1;havoc sep_#t~post6; 1945#L18-2 sep_#t~post3 := sep_~i~0;sep_~i~0 := 1 + sep_#t~post3;havoc sep_#t~post3; 1944#L18-3 assume !!(sep_~i~0 < 5);call sep_#t~mem4 := read~int(sep_~x.base, sep_~x.offset + 4 * sep_~i~0, 4); 1943#L20 assume !(0 == (if sep_#t~mem4 < 0 && 0 != sep_#t~mem4 % 2 then sep_#t~mem4 % 2 - 2 else sep_#t~mem4 % 2));havoc sep_#t~mem4;sep_#t~post6 := sep_~ret~0;sep_~ret~0 := sep_#t~post6 - 1;havoc sep_#t~post6; 1942#L18-2 sep_#t~post3 := sep_~i~0;sep_~i~0 := 1 + sep_#t~post3;havoc sep_#t~post3; 1941#L18-3 assume !!(sep_~i~0 < 5);call sep_#t~mem4 := read~int(sep_~x.base, sep_~x.offset + 4 * sep_~i~0, 4); 1940#L20 assume !(0 == (if sep_#t~mem4 < 0 && 0 != sep_#t~mem4 % 2 then sep_#t~mem4 % 2 - 2 else sep_#t~mem4 % 2));havoc sep_#t~mem4;sep_#t~post6 := sep_~ret~0;sep_~ret~0 := sep_#t~post6 - 1;havoc sep_#t~post6; 1939#L18-2 sep_#t~post3 := sep_~i~0;sep_~i~0 := 1 + sep_#t~post3;havoc sep_#t~post3; 1938#L18-3 assume !(sep_~i~0 < 5); 1914#L18-4 sep_#res := (if sep_~ret~0 % 4294967296 <= 2147483647 then sep_~ret~0 % 4294967296 else sep_~ret~0 % 4294967296 - 4294967296); 1901#L25 main_#t~ret9 := sep_#res;main_~ret~1 := main_#t~ret9;havoc main_#t~ret9;call main_#t~mem10 := read~int(main_~#x~0.base, main_~#x~0.offset, 4);main_~temp~0 := main_#t~mem10;havoc main_#t~mem10;call main_#t~mem11 := read~int(main_~#x~0.base, 4 + main_~#x~0.offset, 4);call write~int(main_#t~mem11, main_~#x~0.base, main_~#x~0.offset, 4);havoc main_#t~mem11;call write~int(main_~temp~0, main_~#x~0.base, 4 + main_~#x~0.offset, 4);sep_#in~x.base, sep_#in~x.offset := main_~#x~0.base, main_~#x~0.offset;havoc sep_#res;havoc sep_#t~mem4, sep_#t~post5, sep_#t~post6, sep_#t~post3, sep_~i~0, sep_~x.base, sep_~x.offset, sep_~ret~0;sep_~x.base, sep_~x.offset := sep_#in~x.base, sep_#in~x.offset;sep_~ret~0 := 0;sep_~i~0 := 0; 1902#L18-8 assume !!(sep_~i~0 < 5);call sep_#t~mem4 := read~int(sep_~x.base, sep_~x.offset + 4 * sep_~i~0, 4); 1907#L20-2 assume !(0 == (if sep_#t~mem4 < 0 && 0 != sep_#t~mem4 % 2 then sep_#t~mem4 % 2 - 2 else sep_#t~mem4 % 2));havoc sep_#t~mem4;sep_#t~post6 := sep_~ret~0;sep_~ret~0 := sep_#t~post6 - 1;havoc sep_#t~post6; 1915#L18-7 sep_#t~post3 := sep_~i~0;sep_~i~0 := 1 + sep_#t~post3;havoc sep_#t~post3; 1916#L18-8 assume !!(sep_~i~0 < 5);call sep_#t~mem4 := read~int(sep_~x.base, sep_~x.offset + 4 * sep_~i~0, 4); 1937#L20-2 assume !(0 == (if sep_#t~mem4 < 0 && 0 != sep_#t~mem4 % 2 then sep_#t~mem4 % 2 - 2 else sep_#t~mem4 % 2));havoc sep_#t~mem4;sep_#t~post6 := sep_~ret~0;sep_~ret~0 := sep_#t~post6 - 1;havoc sep_#t~post6; 1936#L18-7 sep_#t~post3 := sep_~i~0;sep_~i~0 := 1 + sep_#t~post3;havoc sep_#t~post3; 1935#L18-8 assume !!(sep_~i~0 < 5);call sep_#t~mem4 := read~int(sep_~x.base, sep_~x.offset + 4 * sep_~i~0, 4); 1934#L20-2 assume !(0 == (if sep_#t~mem4 < 0 && 0 != sep_#t~mem4 % 2 then sep_#t~mem4 % 2 - 2 else sep_#t~mem4 % 2));havoc sep_#t~mem4;sep_#t~post6 := sep_~ret~0;sep_~ret~0 := sep_#t~post6 - 1;havoc sep_#t~post6; 1933#L18-7 sep_#t~post3 := sep_~i~0;sep_~i~0 := 1 + sep_#t~post3;havoc sep_#t~post3; 1931#L18-8 assume !!(sep_~i~0 < 5);call sep_#t~mem4 := read~int(sep_~x.base, sep_~x.offset + 4 * sep_~i~0, 4); 1929#L20-2 assume !(0 == (if sep_#t~mem4 < 0 && 0 != sep_#t~mem4 % 2 then sep_#t~mem4 % 2 - 2 else sep_#t~mem4 % 2));havoc sep_#t~mem4;sep_#t~post6 := sep_~ret~0;sep_~ret~0 := sep_#t~post6 - 1;havoc sep_#t~post6; 1927#L18-7 sep_#t~post3 := sep_~i~0;sep_~i~0 := 1 + sep_#t~post3;havoc sep_#t~post3; 1925#L18-8 assume !!(sep_~i~0 < 5);call sep_#t~mem4 := read~int(sep_~x.base, sep_~x.offset + 4 * sep_~i~0, 4); 1923#L20-2 assume !(0 == (if sep_#t~mem4 < 0 && 0 != sep_#t~mem4 % 2 then sep_#t~mem4 % 2 - 2 else sep_#t~mem4 % 2));havoc sep_#t~mem4;sep_#t~post6 := sep_~ret~0;sep_~ret~0 := sep_#t~post6 - 1;havoc sep_#t~post6; 1922#L18-7 sep_#t~post3 := sep_~i~0;sep_~i~0 := 1 + sep_#t~post3;havoc sep_#t~post3; 1919#L18-8 assume !(sep_~i~0 < 5); 1908#L18-9 sep_#res := (if sep_~ret~0 % 4294967296 <= 2147483647 then sep_~ret~0 % 4294967296 else sep_~ret~0 % 4294967296 - 4294967296); 1903#L25-1 main_#t~ret12 := sep_#res;main_~ret2~0 := main_#t~ret12;havoc main_#t~ret12;call main_#t~mem13 := read~int(main_~#x~0.base, main_~#x~0.offset, 4);main_~temp~0 := main_#t~mem13;havoc main_#t~mem13;main_~i~2 := 0; 1904#L46-3 [2021-10-21 19:31:27,703 INFO L793 eck$LassoCheckResult]: Loop: 1904#L46-3 assume !!(main_~i~2 < 4);call main_#t~mem15 := read~int(main_~#x~0.base, main_~#x~0.offset + 4 * (1 + main_~i~2), 4);call write~int(main_#t~mem15, main_~#x~0.base, main_~#x~0.offset + 4 * main_~i~2, 4);havoc main_#t~mem15; 1905#L46-2 main_#t~post14 := main_~i~2;main_~i~2 := 1 + main_#t~post14;havoc main_#t~post14; 1904#L46-3 [2021-10-21 19:31:27,703 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:31:27,703 INFO L82 PathProgramCache]: Analyzing trace with hash -866233935, now seen corresponding path program 1 times [2021-10-21 19:31:27,703 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:31:27,704 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1645019089] [2021-10-21 19:31:27,704 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:31:27,704 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:31:27,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:31:27,857 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 19:31:27,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:31:27,996 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 19:31:28,004 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:31:28,004 INFO L82 PathProgramCache]: Analyzing trace with hash 3075, now seen corresponding path program 1 times [2021-10-21 19:31:28,004 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:31:28,004 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1820003509] [2021-10-21 19:31:28,005 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:31:28,005 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:31:28,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:31:28,009 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 19:31:28,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:31:28,012 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 19:31:28,012 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:31:28,013 INFO L82 PathProgramCache]: Analyzing trace with hash 772846003, now seen corresponding path program 1 times [2021-10-21 19:31:28,013 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:31:28,013 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1911992513] [2021-10-21 19:31:28,013 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:31:28,013 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:31:28,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:31:28,107 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 19:31:28,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:31:28,206 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 19:31:33,570 WARN L207 SmtUtils]: Spent 5.26 s on a formula simplification. DAG size of input: 494 DAG size of output: 345 [2021-10-21 19:31:34,458 INFO L210 LassoAnalysis]: Preferences: [2021-10-21 19:31:34,458 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-21 19:31:34,458 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-21 19:31:34,458 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-21 19:31:34,458 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-21 19:31:34,459 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:31:34,459 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-21 19:31:34,459 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-21 19:31:34,459 INFO L133 ssoRankerPreferences]: Filename of dumped script: sep05-1.i_Iteration14_Lasso [2021-10-21 19:31:34,459 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-21 19:31:34,459 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-21 19:31:34,464 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:31:34,470 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:31:34,474 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:31:34,476 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:31:34,479 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:31:34,481 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:31:34,489 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:31:34,493 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:31:34,495 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:31:34,499 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:31:34,501 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:31:34,503 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:31:34,505 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:31:34,507 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:31:34,509 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:31:34,512 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:31:34,514 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:31:34,517 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:31:34,519 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:31:35,512 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:31:35,515 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:31:35,517 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:31:36,163 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-21 19:31:36,163 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-10-21 19:31:36,164 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:31:36,164 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37e88381-15a0-4ff0-b371-cc5a4426086f/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:31:36,172 INFO L229 MonitoredProcess]: Starting monitored process 41 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37e88381-15a0-4ff0-b371-cc5a4426086f/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:31:36,174 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 19:31:36,185 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 19:31:36,185 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 19:31:36,186 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:31:36,186 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:31:36,186 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 19:31:36,187 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-21 19:31:36,187 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 19:31:36,189 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37e88381-15a0-4ff0-b371-cc5a4426086f/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (41)] Waiting until timeout for monitored process [2021-10-21 19:31:36,204 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:31:36,251 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37e88381-15a0-4ff0-b371-cc5a4426086f/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (41)] Forceful destruction successful, exit code 0 [2021-10-21 19:31:36,251 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:31:36,252 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37e88381-15a0-4ff0-b371-cc5a4426086f/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:31:36,257 INFO L229 MonitoredProcess]: Starting monitored process 42 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37e88381-15a0-4ff0-b371-cc5a4426086f/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:31:36,260 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 19:31:36,264 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37e88381-15a0-4ff0-b371-cc5a4426086f/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (42)] Waiting until timeout for monitored process [2021-10-21 19:31:36,269 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 19:31:36,269 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 19:31:36,269 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:31:36,270 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:31:36,270 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 19:31:36,270 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-21 19:31:36,270 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 19:31:36,272 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:31:36,296 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37e88381-15a0-4ff0-b371-cc5a4426086f/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (42)] Forceful destruction successful, exit code 0 [2021-10-21 19:31:36,296 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:31:36,296 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37e88381-15a0-4ff0-b371-cc5a4426086f/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:31:36,297 INFO L229 MonitoredProcess]: Starting monitored process 43 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37e88381-15a0-4ff0-b371-cc5a4426086f/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:31:36,298 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37e88381-15a0-4ff0-b371-cc5a4426086f/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (43)] Waiting until timeout for monitored process [2021-10-21 19:31:36,298 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 [2021-10-21 19:31:36,307 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 19:31:36,307 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 19:31:36,307 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:31:36,307 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:31:36,307 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 19:31:36,308 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-21 19:31:36,308 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 19:31:36,332 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:31:36,373 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37e88381-15a0-4ff0-b371-cc5a4426086f/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (43)] Forceful destruction successful, exit code 0 [2021-10-21 19:31:36,374 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:31:36,374 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37e88381-15a0-4ff0-b371-cc5a4426086f/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:31:36,375 INFO L229 MonitoredProcess]: Starting monitored process 44 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37e88381-15a0-4ff0-b371-cc5a4426086f/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:31:36,385 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 19:31:36,396 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 19:31:36,396 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:31:36,396 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:31:36,396 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 19:31:36,398 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-21 19:31:36,399 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-21 19:31:36,403 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37e88381-15a0-4ff0-b371-cc5a4426086f/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (44)] Waiting until timeout for monitored process [2021-10-21 19:31:36,412 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:31:36,439 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37e88381-15a0-4ff0-b371-cc5a4426086f/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (44)] Ended with exit code 0 [2021-10-21 19:31:36,440 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:31:36,440 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37e88381-15a0-4ff0-b371-cc5a4426086f/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:31:36,441 INFO L229 MonitoredProcess]: Starting monitored process 45 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37e88381-15a0-4ff0-b371-cc5a4426086f/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:31:36,442 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37e88381-15a0-4ff0-b371-cc5a4426086f/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (45)] Waiting until timeout for monitored process [2021-10-21 19:31:36,442 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 19:31:36,453 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 19:31:36,454 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 19:31:36,454 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:31:36,454 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:31:36,454 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 19:31:36,455 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-21 19:31:36,455 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 19:31:36,466 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:31:36,516 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37e88381-15a0-4ff0-b371-cc5a4426086f/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (45)] Forceful destruction successful, exit code 0 [2021-10-21 19:31:36,516 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:31:36,517 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37e88381-15a0-4ff0-b371-cc5a4426086f/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:31:36,518 INFO L229 MonitoredProcess]: Starting monitored process 46 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37e88381-15a0-4ff0-b371-cc5a4426086f/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:31:36,525 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 [2021-10-21 19:31:36,536 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 19:31:36,536 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:31:36,536 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:31:36,536 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 19:31:36,556 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-21 19:31:36,556 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-21 19:31:36,559 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37e88381-15a0-4ff0-b371-cc5a4426086f/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (46)] Waiting until timeout for monitored process [2021-10-21 19:31:36,579 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:31:36,609 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37e88381-15a0-4ff0-b371-cc5a4426086f/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (46)] Ended with exit code 0 [2021-10-21 19:31:36,610 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:31:36,610 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37e88381-15a0-4ff0-b371-cc5a4426086f/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:31:36,611 INFO L229 MonitoredProcess]: Starting monitored process 47 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37e88381-15a0-4ff0-b371-cc5a4426086f/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:31:36,612 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37e88381-15a0-4ff0-b371-cc5a4426086f/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (47)] Waiting until timeout for monitored process [2021-10-21 19:31:36,614 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 19:31:36,622 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 19:31:36,622 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 19:31:36,622 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:31:36,622 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:31:36,623 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 19:31:36,623 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-21 19:31:36,623 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 19:31:36,624 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:31:36,648 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37e88381-15a0-4ff0-b371-cc5a4426086f/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (47)] Ended with exit code 0 [2021-10-21 19:31:36,649 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:31:36,649 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37e88381-15a0-4ff0-b371-cc5a4426086f/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:31:36,650 INFO L229 MonitoredProcess]: Starting monitored process 48 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37e88381-15a0-4ff0-b371-cc5a4426086f/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:31:36,651 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37e88381-15a0-4ff0-b371-cc5a4426086f/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (48)] Waiting until timeout for monitored process [2021-10-21 19:31:36,651 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 19:31:36,660 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 19:31:36,660 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:31:36,660 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:31:36,660 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 19:31:36,661 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-21 19:31:36,661 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-21 19:31:36,700 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:31:36,749 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37e88381-15a0-4ff0-b371-cc5a4426086f/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (48)] Forceful destruction successful, exit code 0 [2021-10-21 19:31:36,750 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:31:36,750 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37e88381-15a0-4ff0-b371-cc5a4426086f/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:31:36,751 INFO L229 MonitoredProcess]: Starting monitored process 49 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37e88381-15a0-4ff0-b371-cc5a4426086f/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:31:36,759 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37e88381-15a0-4ff0-b371-cc5a4426086f/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (49)] Waiting until timeout for monitored process [2021-10-21 19:31:36,760 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 19:31:36,769 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 19:31:36,769 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:31:36,769 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:31:36,769 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 19:31:36,771 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-21 19:31:36,771 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-21 19:31:36,776 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:31:36,804 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37e88381-15a0-4ff0-b371-cc5a4426086f/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (49)] Ended with exit code 0 [2021-10-21 19:31:36,806 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:31:36,806 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37e88381-15a0-4ff0-b371-cc5a4426086f/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:31:36,808 INFO L229 MonitoredProcess]: Starting monitored process 50 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37e88381-15a0-4ff0-b371-cc5a4426086f/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:31:36,809 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37e88381-15a0-4ff0-b371-cc5a4426086f/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (50)] Waiting until timeout for monitored process [2021-10-21 19:31:36,810 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 19:31:36,821 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 19:31:36,821 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 19:31:36,821 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:31:36,821 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:31:36,821 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 19:31:36,822 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-21 19:31:36,822 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 19:31:36,823 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:31:36,848 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37e88381-15a0-4ff0-b371-cc5a4426086f/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (50)] Forceful destruction successful, exit code 0 [2021-10-21 19:31:36,848 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:31:36,848 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37e88381-15a0-4ff0-b371-cc5a4426086f/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:31:36,849 INFO L229 MonitoredProcess]: Starting monitored process 51 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37e88381-15a0-4ff0-b371-cc5a4426086f/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:31:36,850 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37e88381-15a0-4ff0-b371-cc5a4426086f/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (51)] Waiting until timeout for monitored process [2021-10-21 19:31:36,851 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 19:31:36,860 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 19:31:36,860 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 19:31:36,860 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:31:36,860 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:31:36,860 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 19:31:36,861 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-21 19:31:36,861 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 19:31:36,862 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:31:36,886 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37e88381-15a0-4ff0-b371-cc5a4426086f/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (51)] Ended with exit code 0 [2021-10-21 19:31:36,886 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:31:36,886 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37e88381-15a0-4ff0-b371-cc5a4426086f/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:31:36,900 INFO L229 MonitoredProcess]: Starting monitored process 52 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37e88381-15a0-4ff0-b371-cc5a4426086f/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:31:36,911 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37e88381-15a0-4ff0-b371-cc5a4426086f/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (52)] Waiting until timeout for monitored process [2021-10-21 19:31:36,911 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 19:31:36,920 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 19:31:36,920 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 19:31:36,920 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:31:36,920 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:31:36,920 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 19:31:36,921 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-21 19:31:36,921 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 19:31:36,924 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:31:36,956 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37e88381-15a0-4ff0-b371-cc5a4426086f/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (52)] Ended with exit code 0 [2021-10-21 19:31:36,956 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:31:36,957 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37e88381-15a0-4ff0-b371-cc5a4426086f/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:31:36,957 INFO L229 MonitoredProcess]: Starting monitored process 53 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37e88381-15a0-4ff0-b371-cc5a4426086f/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:31:36,958 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37e88381-15a0-4ff0-b371-cc5a4426086f/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (53)] Waiting until timeout for monitored process [2021-10-21 19:31:36,959 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 19:31:36,967 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 19:31:36,968 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 19:31:36,968 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:31:36,968 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:31:36,968 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 19:31:36,968 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-21 19:31:36,968 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 19:31:36,969 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:31:36,993 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37e88381-15a0-4ff0-b371-cc5a4426086f/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (53)] Forceful destruction successful, exit code 0 [2021-10-21 19:31:36,994 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:31:36,994 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37e88381-15a0-4ff0-b371-cc5a4426086f/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:31:36,995 INFO L229 MonitoredProcess]: Starting monitored process 54 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37e88381-15a0-4ff0-b371-cc5a4426086f/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:31:36,996 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37e88381-15a0-4ff0-b371-cc5a4426086f/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (54)] Waiting until timeout for monitored process [2021-10-21 19:31:36,996 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 19:31:37,005 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 19:31:37,005 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 19:31:37,005 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:31:37,005 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:31:37,005 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 19:31:37,006 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-21 19:31:37,006 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 19:31:37,007 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:31:37,032 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37e88381-15a0-4ff0-b371-cc5a4426086f/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (54)] Forceful destruction successful, exit code 0 [2021-10-21 19:31:37,032 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:31:37,032 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37e88381-15a0-4ff0-b371-cc5a4426086f/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:31:37,034 INFO L229 MonitoredProcess]: Starting monitored process 55 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37e88381-15a0-4ff0-b371-cc5a4426086f/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:31:37,035 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37e88381-15a0-4ff0-b371-cc5a4426086f/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (55)] Waiting until timeout for monitored process [2021-10-21 19:31:37,036 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 [2021-10-21 19:31:37,044 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 19:31:37,044 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:31:37,045 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:31:37,045 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 19:31:37,048 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-21 19:31:37,048 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-21 19:31:37,051 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:31:37,076 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37e88381-15a0-4ff0-b371-cc5a4426086f/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (55)] Forceful destruction successful, exit code 0 [2021-10-21 19:31:37,076 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:31:37,076 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37e88381-15a0-4ff0-b371-cc5a4426086f/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:31:37,077 INFO L229 MonitoredProcess]: Starting monitored process 56 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37e88381-15a0-4ff0-b371-cc5a4426086f/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:31:37,078 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37e88381-15a0-4ff0-b371-cc5a4426086f/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (56)] Waiting until timeout for monitored process [2021-10-21 19:31:37,078 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 19:31:37,088 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 19:31:37,088 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 19:31:37,088 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:31:37,088 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:31:37,088 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 19:31:37,089 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-21 19:31:37,089 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 19:31:37,090 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:31:37,114 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37e88381-15a0-4ff0-b371-cc5a4426086f/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (56)] Forceful destruction successful, exit code 0 [2021-10-21 19:31:37,115 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:31:37,115 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37e88381-15a0-4ff0-b371-cc5a4426086f/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:31:37,116 INFO L229 MonitoredProcess]: Starting monitored process 57 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37e88381-15a0-4ff0-b371-cc5a4426086f/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:31:37,117 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37e88381-15a0-4ff0-b371-cc5a4426086f/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (57)] Waiting until timeout for monitored process [2021-10-21 19:31:37,117 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 19:31:37,126 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 19:31:37,126 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 19:31:37,126 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:31:37,126 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:31:37,126 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 19:31:37,126 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-21 19:31:37,127 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 19:31:37,128 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:31:37,152 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37e88381-15a0-4ff0-b371-cc5a4426086f/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (57)] Ended with exit code 0 [2021-10-21 19:31:37,152 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:31:37,152 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37e88381-15a0-4ff0-b371-cc5a4426086f/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:31:37,153 INFO L229 MonitoredProcess]: Starting monitored process 58 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37e88381-15a0-4ff0-b371-cc5a4426086f/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:31:37,154 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37e88381-15a0-4ff0-b371-cc5a4426086f/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (58)] Waiting until timeout for monitored process [2021-10-21 19:31:37,154 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 19:31:37,163 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 19:31:37,163 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 19:31:37,163 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:31:37,163 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:31:37,163 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 19:31:37,164 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-21 19:31:37,164 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 19:31:37,165 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:31:37,189 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37e88381-15a0-4ff0-b371-cc5a4426086f/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (58)] Forceful destruction successful, exit code 0 [2021-10-21 19:31:37,189 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:31:37,190 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37e88381-15a0-4ff0-b371-cc5a4426086f/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:31:37,190 INFO L229 MonitoredProcess]: Starting monitored process 59 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37e88381-15a0-4ff0-b371-cc5a4426086f/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:31:37,191 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37e88381-15a0-4ff0-b371-cc5a4426086f/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (59)] Waiting until timeout for monitored process [2021-10-21 19:31:37,192 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 19:31:37,200 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 19:31:37,201 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:31:37,201 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:31:37,201 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 19:31:37,202 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-21 19:31:37,202 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-21 19:31:37,206 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:31:37,230 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37e88381-15a0-4ff0-b371-cc5a4426086f/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (59)] Forceful destruction successful, exit code 0 [2021-10-21 19:31:37,230 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:31:37,231 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37e88381-15a0-4ff0-b371-cc5a4426086f/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:31:37,231 INFO L229 MonitoredProcess]: Starting monitored process 60 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37e88381-15a0-4ff0-b371-cc5a4426086f/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:31:37,232 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37e88381-15a0-4ff0-b371-cc5a4426086f/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (60)] Waiting until timeout for monitored process [2021-10-21 19:31:37,233 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 19:31:37,241 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 19:31:37,242 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:31:37,242 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:31:37,242 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 19:31:37,244 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-21 19:31:37,245 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-21 19:31:37,249 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:31:37,273 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37e88381-15a0-4ff0-b371-cc5a4426086f/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (60)] Ended with exit code 0 [2021-10-21 19:31:37,274 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:31:37,274 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37e88381-15a0-4ff0-b371-cc5a4426086f/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:31:37,276 INFO L229 MonitoredProcess]: Starting monitored process 61 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37e88381-15a0-4ff0-b371-cc5a4426086f/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:31:37,276 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37e88381-15a0-4ff0-b371-cc5a4426086f/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (61)] Waiting until timeout for monitored process [2021-10-21 19:31:37,277 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 19:31:37,286 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 19:31:37,286 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:31:37,286 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:31:37,286 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 19:31:37,288 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-21 19:31:37,288 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-21 19:31:37,292 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:31:37,317 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37e88381-15a0-4ff0-b371-cc5a4426086f/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (61)] Forceful destruction successful, exit code 0 [2021-10-21 19:31:37,318 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:31:37,318 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37e88381-15a0-4ff0-b371-cc5a4426086f/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:31:37,319 INFO L229 MonitoredProcess]: Starting monitored process 62 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37e88381-15a0-4ff0-b371-cc5a4426086f/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:31:37,320 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37e88381-15a0-4ff0-b371-cc5a4426086f/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (62)] Waiting until timeout for monitored process [2021-10-21 19:31:37,320 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 19:31:37,329 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 19:31:37,329 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 19:31:37,329 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:31:37,329 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:31:37,329 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 19:31:37,330 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-21 19:31:37,330 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 19:31:37,348 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:31:37,372 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37e88381-15a0-4ff0-b371-cc5a4426086f/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (62)] Forceful destruction successful, exit code 0 [2021-10-21 19:31:37,373 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:31:37,373 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37e88381-15a0-4ff0-b371-cc5a4426086f/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:31:37,374 INFO L229 MonitoredProcess]: Starting monitored process 63 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37e88381-15a0-4ff0-b371-cc5a4426086f/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:31:37,375 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37e88381-15a0-4ff0-b371-cc5a4426086f/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (63)] Waiting until timeout for monitored process [2021-10-21 19:31:37,376 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 19:31:37,384 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 19:31:37,384 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 19:31:37,385 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:31:37,385 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:31:37,385 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 19:31:37,385 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-21 19:31:37,385 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 19:31:37,387 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:31:37,411 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37e88381-15a0-4ff0-b371-cc5a4426086f/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (63)] Ended with exit code 0 [2021-10-21 19:31:37,411 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:31:37,411 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37e88381-15a0-4ff0-b371-cc5a4426086f/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:31:37,412 INFO L229 MonitoredProcess]: Starting monitored process 64 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37e88381-15a0-4ff0-b371-cc5a4426086f/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:31:37,413 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37e88381-15a0-4ff0-b371-cc5a4426086f/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (64)] Waiting until timeout for monitored process [2021-10-21 19:31:37,414 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 19:31:37,422 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 19:31:37,422 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:31:37,422 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:31:37,423 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 19:31:37,424 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-21 19:31:37,424 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-21 19:31:37,427 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:31:37,451 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37e88381-15a0-4ff0-b371-cc5a4426086f/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (64)] Forceful destruction successful, exit code 0 [2021-10-21 19:31:37,452 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:31:37,452 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37e88381-15a0-4ff0-b371-cc5a4426086f/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:31:37,453 INFO L229 MonitoredProcess]: Starting monitored process 65 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37e88381-15a0-4ff0-b371-cc5a4426086f/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:31:37,454 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37e88381-15a0-4ff0-b371-cc5a4426086f/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (65)] Waiting until timeout for monitored process [2021-10-21 19:31:37,455 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 19:31:37,464 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 19:31:37,464 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:31:37,464 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:31:37,464 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 19:31:37,465 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-21 19:31:37,465 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-21 19:31:37,469 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:31:37,493 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37e88381-15a0-4ff0-b371-cc5a4426086f/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (65)] Ended with exit code 0 [2021-10-21 19:31:37,494 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:31:37,494 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37e88381-15a0-4ff0-b371-cc5a4426086f/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:31:37,495 INFO L229 MonitoredProcess]: Starting monitored process 66 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37e88381-15a0-4ff0-b371-cc5a4426086f/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:31:37,495 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37e88381-15a0-4ff0-b371-cc5a4426086f/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (66)] Waiting until timeout for monitored process [2021-10-21 19:31:37,496 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 19:31:37,505 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 19:31:37,505 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 19:31:37,505 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:31:37,506 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:31:37,506 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 19:31:37,506 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-21 19:31:37,506 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 19:31:37,507 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:31:37,532 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37e88381-15a0-4ff0-b371-cc5a4426086f/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (66)] Forceful destruction successful, exit code 0 [2021-10-21 19:31:37,533 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:31:37,533 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37e88381-15a0-4ff0-b371-cc5a4426086f/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:31:37,534 INFO L229 MonitoredProcess]: Starting monitored process 67 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37e88381-15a0-4ff0-b371-cc5a4426086f/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:31:37,537 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37e88381-15a0-4ff0-b371-cc5a4426086f/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (67)] Waiting until timeout for monitored process [2021-10-21 19:31:37,537 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 19:31:37,547 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 19:31:37,548 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:31:37,548 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:31:37,548 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 19:31:37,551 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-21 19:31:37,551 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-21 19:31:37,558 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:31:37,582 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37e88381-15a0-4ff0-b371-cc5a4426086f/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (67)] Ended with exit code 0 [2021-10-21 19:31:37,583 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:31:37,583 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37e88381-15a0-4ff0-b371-cc5a4426086f/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:31:37,584 INFO L229 MonitoredProcess]: Starting monitored process 68 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37e88381-15a0-4ff0-b371-cc5a4426086f/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:31:37,585 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37e88381-15a0-4ff0-b371-cc5a4426086f/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (68)] Waiting until timeout for monitored process [2021-10-21 19:31:37,585 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 19:31:37,594 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 19:31:37,594 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:31:37,594 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:31:37,594 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 19:31:37,595 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-21 19:31:37,596 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-21 19:31:37,598 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:31:37,623 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37e88381-15a0-4ff0-b371-cc5a4426086f/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (68)] Ended with exit code 0 [2021-10-21 19:31:37,623 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:31:37,623 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37e88381-15a0-4ff0-b371-cc5a4426086f/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:31:37,624 INFO L229 MonitoredProcess]: Starting monitored process 69 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37e88381-15a0-4ff0-b371-cc5a4426086f/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:31:37,625 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 19:31:37,626 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37e88381-15a0-4ff0-b371-cc5a4426086f/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (69)] Waiting until timeout for monitored process [2021-10-21 19:31:37,634 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 19:31:37,634 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 19:31:37,635 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:31:37,635 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:31:37,635 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 19:31:37,635 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-21 19:31:37,635 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 19:31:37,636 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:31:37,661 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37e88381-15a0-4ff0-b371-cc5a4426086f/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (69)] Ended with exit code 0 [2021-10-21 19:31:37,661 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:31:37,661 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37e88381-15a0-4ff0-b371-cc5a4426086f/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:31:37,662 INFO L229 MonitoredProcess]: Starting monitored process 70 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37e88381-15a0-4ff0-b371-cc5a4426086f/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:31:37,663 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37e88381-15a0-4ff0-b371-cc5a4426086f/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (70)] Waiting until timeout for monitored process [2021-10-21 19:31:37,663 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 19:31:37,672 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 19:31:37,672 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 19:31:37,672 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:31:37,672 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:31:37,672 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 19:31:37,673 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-21 19:31:37,673 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 19:31:37,674 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:31:37,698 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37e88381-15a0-4ff0-b371-cc5a4426086f/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (70)] Ended with exit code 0 [2021-10-21 19:31:37,699 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:31:37,699 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37e88381-15a0-4ff0-b371-cc5a4426086f/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:31:37,700 INFO L229 MonitoredProcess]: Starting monitored process 71 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37e88381-15a0-4ff0-b371-cc5a4426086f/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:31:37,701 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37e88381-15a0-4ff0-b371-cc5a4426086f/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (71)] Waiting until timeout for monitored process [2021-10-21 19:31:37,702 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 19:31:37,711 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 19:31:37,711 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:31:37,711 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:31:37,711 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 19:31:37,712 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-21 19:31:37,712 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-21 19:31:37,715 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:31:37,740 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37e88381-15a0-4ff0-b371-cc5a4426086f/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (71)] Forceful destruction successful, exit code 0 [2021-10-21 19:31:37,740 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:31:37,740 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37e88381-15a0-4ff0-b371-cc5a4426086f/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:31:37,741 INFO L229 MonitoredProcess]: Starting monitored process 72 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37e88381-15a0-4ff0-b371-cc5a4426086f/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:31:37,743 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37e88381-15a0-4ff0-b371-cc5a4426086f/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (72)] Waiting until timeout for monitored process [2021-10-21 19:31:37,744 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 19:31:37,753 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 19:31:37,753 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:31:37,753 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:31:37,753 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 19:31:37,754 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-21 19:31:37,754 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-21 19:31:37,757 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:31:37,782 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37e88381-15a0-4ff0-b371-cc5a4426086f/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (72)] Ended with exit code 0 [2021-10-21 19:31:37,782 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:31:37,782 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37e88381-15a0-4ff0-b371-cc5a4426086f/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:31:37,784 INFO L229 MonitoredProcess]: Starting monitored process 73 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37e88381-15a0-4ff0-b371-cc5a4426086f/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:31:37,785 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37e88381-15a0-4ff0-b371-cc5a4426086f/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (73)] Waiting until timeout for monitored process [2021-10-21 19:31:37,785 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 19:31:37,794 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 19:31:37,794 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:31:37,794 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:31:37,794 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 19:31:37,798 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-21 19:31:37,799 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-21 19:31:37,820 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:31:37,845 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37e88381-15a0-4ff0-b371-cc5a4426086f/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (73)] Ended with exit code 0 [2021-10-21 19:31:37,845 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:31:37,845 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37e88381-15a0-4ff0-b371-cc5a4426086f/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:31:37,846 INFO L229 MonitoredProcess]: Starting monitored process 74 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37e88381-15a0-4ff0-b371-cc5a4426086f/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:31:37,847 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37e88381-15a0-4ff0-b371-cc5a4426086f/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (74)] Waiting until timeout for monitored process [2021-10-21 19:31:37,847 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 19:31:37,856 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 19:31:37,857 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:31:37,857 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:31:37,857 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 19:31:37,866 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-21 19:31:37,866 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-21 19:31:37,898 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-10-21 19:31:37,947 INFO L443 ModelExtractionUtils]: Simplification made 14 calls to the SMT solver. [2021-10-21 19:31:37,948 INFO L444 ModelExtractionUtils]: 4 out of 28 variables were initially zero. Simplification set additionally 21 variables to zero. [2021-10-21 19:31:37,948 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:31:37,948 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37e88381-15a0-4ff0-b371-cc5a4426086f/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:31:37,953 INFO L229 MonitoredProcess]: Starting monitored process 75 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37e88381-15a0-4ff0-b371-cc5a4426086f/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:31:37,955 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-10-21 19:31:37,965 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37e88381-15a0-4ff0-b371-cc5a4426086f/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (75)] Waiting until timeout for monitored process [2021-10-21 19:31:37,988 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2021-10-21 19:31:37,988 INFO L513 LassoAnalysis]: Proved termination. [2021-10-21 19:31:37,989 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~2) = -2*ULTIMATE.start_main_~i~2 + 7 Supporting invariants [] [2021-10-21 19:31:38,027 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37e88381-15a0-4ff0-b371-cc5a4426086f/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (74)] Ended with exit code 0 [2021-10-21 19:31:38,225 INFO L297 tatePredicateManager]: 48 out of 48 supporting invariants were superfluous and have been removed [2021-10-21 19:31:38,237 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:31:38,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:31:38,311 INFO L263 TraceCheckSpWp]: Trace formula consists of 247 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-21 19:31:38,315 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 19:31:38,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:31:38,507 INFO L263 TraceCheckSpWp]: Trace formula consists of 12 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-21 19:31:38,508 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 19:31:38,528 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:31:38,529 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2021-10-21 19:31:38,529 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 52 states and 63 transitions. cyclomatic complexity: 13 Second operand has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:31:38,539 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 52 states and 63 transitions. cyclomatic complexity: 13. Second operand has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 54 states and 66 transitions. Complement of second has 4 states. [2021-10-21 19:31:38,540 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2021-10-21 19:31:38,540 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:31:38,540 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 22 transitions. [2021-10-21 19:31:38,540 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 22 transitions. Stem has 50 letters. Loop has 2 letters. [2021-10-21 19:31:38,541 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-21 19:31:38,541 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 22 transitions. Stem has 52 letters. Loop has 2 letters. [2021-10-21 19:31:38,542 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-21 19:31:38,542 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 22 transitions. Stem has 50 letters. Loop has 4 letters. [2021-10-21 19:31:38,542 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-21 19:31:38,543 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 54 states and 66 transitions. [2021-10-21 19:31:38,544 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-10-21 19:31:38,544 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 54 states to 0 states and 0 transitions. [2021-10-21 19:31:38,544 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2021-10-21 19:31:38,544 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2021-10-21 19:31:38,544 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2021-10-21 19:31:38,544 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-21 19:31:38,545 INFO L681 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-21 19:31:38,545 INFO L704 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-21 19:31:38,545 INFO L587 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-21 19:31:38,545 INFO L425 BuchiCegarLoop]: ======== Iteration 15============ [2021-10-21 19:31:38,545 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2021-10-21 19:31:38,545 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-10-21 19:31:38,546 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2021-10-21 19:31:38,552 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 21.10 07:31:38 BoogieIcfgContainer [2021-10-21 19:31:38,552 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-10-21 19:31:38,553 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-21 19:31:38,553 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-21 19:31:38,553 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-21 19:31:38,554 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 07:31:15" (3/4) ... [2021-10-21 19:31:38,557 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-10-21 19:31:38,558 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-21 19:31:38,559 INFO L168 Benchmark]: Toolchain (without parser) took 23503.21 ms. Allocated memory was 107.0 MB in the beginning and 205.5 MB in the end (delta: 98.6 MB). Free memory was 66.9 MB in the beginning and 110.0 MB in the end (delta: -43.1 MB). Peak memory consumption was 55.6 MB. Max. memory is 16.1 GB. [2021-10-21 19:31:38,559 INFO L168 Benchmark]: CDTParser took 0.30 ms. Allocated memory is still 107.0 MB. Free memory is still 83.0 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-21 19:31:38,560 INFO L168 Benchmark]: CACSL2BoogieTranslator took 313.17 ms. Allocated memory is still 107.0 MB. Free memory was 66.7 MB in the beginning and 81.1 MB in the end (delta: -14.4 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-21 19:31:38,560 INFO L168 Benchmark]: Boogie Procedure Inliner took 47.64 ms. Allocated memory is still 107.0 MB. Free memory was 81.1 MB in the beginning and 79.4 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-21 19:31:38,561 INFO L168 Benchmark]: Boogie Preprocessor took 33.86 ms. Allocated memory is still 107.0 MB. Free memory was 79.4 MB in the beginning and 77.9 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-21 19:31:38,561 INFO L168 Benchmark]: RCFGBuilder took 419.59 ms. Allocated memory is still 107.0 MB. Free memory was 77.9 MB in the beginning and 65.0 MB in the end (delta: 12.9 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2021-10-21 19:31:38,562 INFO L168 Benchmark]: BuchiAutomizer took 22677.35 ms. Allocated memory was 107.0 MB in the beginning and 205.5 MB in the end (delta: 98.6 MB). Free memory was 65.0 MB in the beginning and 110.0 MB in the end (delta: -45.0 MB). Peak memory consumption was 55.8 MB. Max. memory is 16.1 GB. [2021-10-21 19:31:38,562 INFO L168 Benchmark]: Witness Printer took 5.10 ms. Allocated memory is still 205.5 MB. Free memory is still 110.0 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-21 19:31:38,564 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30 ms. Allocated memory is still 107.0 MB. Free memory is still 83.0 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 313.17 ms. Allocated memory is still 107.0 MB. Free memory was 66.7 MB in the beginning and 81.1 MB in the end (delta: -14.4 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 47.64 ms. Allocated memory is still 107.0 MB. Free memory was 81.1 MB in the beginning and 79.4 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 33.86 ms. Allocated memory is still 107.0 MB. Free memory was 79.4 MB in the beginning and 77.9 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 419.59 ms. Allocated memory is still 107.0 MB. Free memory was 77.9 MB in the beginning and 65.0 MB in the end (delta: 12.9 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 22677.35 ms. Allocated memory was 107.0 MB in the beginning and 205.5 MB in the end (delta: 98.6 MB). Free memory was 65.0 MB in the beginning and 110.0 MB in the end (delta: -45.0 MB). Peak memory consumption was 55.8 MB. Max. memory is 16.1 GB. * Witness Printer took 5.10 ms. Allocated memory is still 205.5 MB. Free memory is still 110.0 MB. There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 14 terminating modules (11 trivial, 3 deterministic, 0 nondeterministic). One deterministic module has affine ranking function 9 * unknown-#length-unknown[x] + -8 * i and consists of 5 locations. One deterministic module has affine ranking function -8 * i + 9 * unknown-#length-unknown[x] and consists of 4 locations. One deterministic module has affine ranking function 7 + -2 * i and consists of 3 locations. 11 modules have a trivial ranking function, the largest among these consists of 8 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 22.6s and 15 iterations. TraceHistogramMax:5. Analysis of lassos took 20.8s. Construction of modules took 0.4s. Büchi inclusion checks took 1.0s. Highest rank in rank-based complementation 3. Minimization of det autom 14. Minimization of nondet autom 0. Automata minimization 89.6ms AutomataMinimizationTime, 13 MinimizatonAttempts, 63 StatesRemovedByMinimization, 9 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 56 states and ocurred in iteration 12. Nontrivial modules had stage [3, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 334 SDtfs, 332 SDslu, 505 SDs, 0 SdLazy, 319 SolverSat, 87 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 419.7ms Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT0 conc1 concLT0 SILN0 SILU10 SILI0 SILT0 lasso3 LassoPreprocessingBenchmarks: Lassos: inital260 mio100 ax100 hnf100 lsp93 ukn52 mio100 lsp44 div100 bol100 ite100 ukn100 eq162 hnf91 smp93 dnf100 smp100 tf100 neg100 sie103 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 58ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2021-10-21 19:31:38,602 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37e88381-15a0-4ff0-b371-cc5a4426086f/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (75)] Forceful destruction successful, exit code 0 [2021-10-21 19:31:38,811 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37e88381-15a0-4ff0-b371-cc5a4426086f/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (40)] Ended with exit code 0 [2021-10-21 19:31:39,010 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37e88381-15a0-4ff0-b371-cc5a4426086f/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (39)] Ended with exit code 0 [2021-10-21 19:31:39,211 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37e88381-15a0-4ff0-b371-cc5a4426086f/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (38)] Ended with exit code 0 [2021-10-21 19:31:39,411 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37e88381-15a0-4ff0-b371-cc5a4426086f/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (37)] Ended with exit code 0 [2021-10-21 19:31:39,611 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37e88381-15a0-4ff0-b371-cc5a4426086f/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (36)] Forceful destruction successful, exit code 0 [2021-10-21 19:31:39,812 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37e88381-15a0-4ff0-b371-cc5a4426086f/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2021-10-21 19:31:40,012 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37e88381-15a0-4ff0-b371-cc5a4426086f/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2021-10-21 19:31:40,212 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37e88381-15a0-4ff0-b371-cc5a4426086f/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2021-10-21 19:31:40,412 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37e88381-15a0-4ff0-b371-cc5a4426086f/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2021-10-21 19:31:40,614 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37e88381-15a0-4ff0-b371-cc5a4426086f/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Ended with exit code 0 Received shutdown request...