./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/reducercommutativity/sep.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 63182f13 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3790920e-7321-45ee-9abd-52e221d3c57d/bin/uautomizer-YU5uOKAj3y/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3790920e-7321-45ee-9abd-52e221d3c57d/bin/uautomizer-YU5uOKAj3y/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3790920e-7321-45ee-9abd-52e221d3c57d/bin/uautomizer-YU5uOKAj3y/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3790920e-7321-45ee-9abd-52e221d3c57d/bin/uautomizer-YU5uOKAj3y/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/reducercommutativity/sep.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3790920e-7321-45ee-9abd-52e221d3c57d/bin/uautomizer-YU5uOKAj3y/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3790920e-7321-45ee-9abd-52e221d3c57d/bin/uautomizer-YU5uOKAj3y --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 54d2da4a9e5a645ffa7361038eff25cc32e29a265e0324de9bda9a6d773becac --- Real Ultimate output --- This is Ultimate 0.2.1-dev-63182f1 [2021-11-13 18:10:24,471 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-13 18:10:24,473 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-13 18:10:24,520 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-13 18:10:24,521 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-13 18:10:24,529 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-13 18:10:24,531 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-13 18:10:24,533 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-13 18:10:24,535 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-13 18:10:24,536 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-13 18:10:24,537 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-13 18:10:24,539 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-13 18:10:24,539 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-13 18:10:24,541 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-13 18:10:24,542 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-13 18:10:24,544 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-13 18:10:24,545 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-13 18:10:24,547 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-13 18:10:24,549 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-13 18:10:24,552 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-13 18:10:24,554 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-13 18:10:24,555 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-13 18:10:24,557 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-13 18:10:24,558 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-13 18:10:24,562 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-13 18:10:24,562 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-13 18:10:24,563 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-13 18:10:24,564 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-13 18:10:24,564 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-13 18:10:24,566 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-13 18:10:24,566 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-13 18:10:24,567 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-13 18:10:24,568 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-13 18:10:24,569 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-13 18:10:24,570 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-13 18:10:24,570 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-13 18:10:24,571 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-13 18:10:24,571 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-13 18:10:24,572 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-13 18:10:24,573 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-13 18:10:24,573 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-13 18:10:24,574 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3790920e-7321-45ee-9abd-52e221d3c57d/bin/uautomizer-YU5uOKAj3y/config/svcomp-Termination-32bit-Automizer_Default.epf [2021-11-13 18:10:24,610 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-13 18:10:24,610 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-13 18:10:24,611 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-13 18:10:24,611 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-13 18:10:24,612 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-13 18:10:24,612 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-13 18:10:24,613 INFO L138 SettingsManager]: * Use SBE=true [2021-11-13 18:10:24,613 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-11-13 18:10:24,613 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-11-13 18:10:24,613 INFO L138 SettingsManager]: * Use old map elimination=false [2021-11-13 18:10:24,613 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-11-13 18:10:24,614 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-11-13 18:10:24,614 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-11-13 18:10:24,614 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-13 18:10:24,614 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-13 18:10:24,614 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-11-13 18:10:24,615 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-13 18:10:24,615 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-13 18:10:24,615 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-13 18:10:24,615 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-11-13 18:10:24,615 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-11-13 18:10:24,615 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-11-13 18:10:24,616 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-13 18:10:24,616 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-13 18:10:24,616 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-11-13 18:10:24,616 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-13 18:10:24,616 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-11-13 18:10:24,617 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-13 18:10:24,617 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-13 18:10:24,617 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-13 18:10:24,617 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-13 18:10:24,618 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-13 18:10:24,618 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-11-13 18:10:24,619 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_3790920e-7321-45ee-9abd-52e221d3c57d/bin/uautomizer-YU5uOKAj3y/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3790920e-7321-45ee-9abd-52e221d3c57d/bin/uautomizer-YU5uOKAj3y Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 54d2da4a9e5a645ffa7361038eff25cc32e29a265e0324de9bda9a6d773becac [2021-11-13 18:10:24,950 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-13 18:10:24,980 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-13 18:10:24,983 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-13 18:10:24,984 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-13 18:10:24,985 INFO L275 PluginConnector]: CDTParser initialized [2021-11-13 18:10:24,986 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3790920e-7321-45ee-9abd-52e221d3c57d/bin/uautomizer-YU5uOKAj3y/../../sv-benchmarks/c/reducercommutativity/sep.i [2021-11-13 18:10:25,060 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3790920e-7321-45ee-9abd-52e221d3c57d/bin/uautomizer-YU5uOKAj3y/data/bf37cc44e/526fcb016f9e49129a8ab5075812aa7c/FLAG3434e5d85 [2021-11-13 18:10:25,561 INFO L306 CDTParser]: Found 1 translation units. [2021-11-13 18:10:25,562 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3790920e-7321-45ee-9abd-52e221d3c57d/sv-benchmarks/c/reducercommutativity/sep.i [2021-11-13 18:10:25,569 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3790920e-7321-45ee-9abd-52e221d3c57d/bin/uautomizer-YU5uOKAj3y/data/bf37cc44e/526fcb016f9e49129a8ab5075812aa7c/FLAG3434e5d85 [2021-11-13 18:10:25,915 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3790920e-7321-45ee-9abd-52e221d3c57d/bin/uautomizer-YU5uOKAj3y/data/bf37cc44e/526fcb016f9e49129a8ab5075812aa7c [2021-11-13 18:10:25,918 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-13 18:10:25,919 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-13 18:10:25,921 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-13 18:10:25,923 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-13 18:10:25,927 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-13 18:10:25,928 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 06:10:25" (1/1) ... [2021-11-13 18:10:25,929 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@30310a7d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:10:25, skipping insertion in model container [2021-11-13 18:10:25,932 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 06:10:25" (1/1) ... [2021-11-13 18:10:25,939 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-13 18:10:25,956 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-13 18:10:26,248 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_3790920e-7321-45ee-9abd-52e221d3c57d/sv-benchmarks/c/reducercommutativity/sep.i[1298,1311] [2021-11-13 18:10:26,249 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-13 18:10:26,266 INFO L203 MainTranslator]: Completed pre-run [2021-11-13 18:10:26,289 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_3790920e-7321-45ee-9abd-52e221d3c57d/sv-benchmarks/c/reducercommutativity/sep.i[1298,1311] [2021-11-13 18:10:26,290 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-13 18:10:26,306 INFO L208 MainTranslator]: Completed translation [2021-11-13 18:10:26,307 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:10:26 WrapperNode [2021-11-13 18:10:26,307 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-13 18:10:26,309 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-13 18:10:26,309 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-13 18:10:26,309 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-13 18:10:26,317 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:10:26" (1/1) ... [2021-11-13 18:10:26,337 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:10:26" (1/1) ... [2021-11-13 18:10:26,375 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-13 18:10:26,377 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-13 18:10:26,377 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-13 18:10:26,377 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-13 18:10:26,387 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:10:26" (1/1) ... [2021-11-13 18:10:26,388 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:10:26" (1/1) ... [2021-11-13 18:10:26,394 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:10:26" (1/1) ... [2021-11-13 18:10:26,395 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:10:26" (1/1) ... [2021-11-13 18:10:26,416 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:10:26" (1/1) ... [2021-11-13 18:10:26,423 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:10:26" (1/1) ... [2021-11-13 18:10:26,425 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:10:26" (1/1) ... [2021-11-13 18:10:26,433 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-13 18:10:26,436 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-13 18:10:26,437 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-13 18:10:26,437 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-13 18:10:26,440 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:10:26" (1/1) ... [2021-11-13 18:10:26,449 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-13 18:10:26,461 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3790920e-7321-45ee-9abd-52e221d3c57d/bin/uautomizer-YU5uOKAj3y/z3 [2021-11-13 18:10:26,475 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3790920e-7321-45ee-9abd-52e221d3c57d/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-13 18:10:26,502 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3790920e-7321-45ee-9abd-52e221d3c57d/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-11-13 18:10:26,524 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-13 18:10:26,525 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-13 18:10:26,525 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-13 18:10:26,525 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-13 18:10:26,525 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-13 18:10:26,526 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-13 18:10:26,526 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-13 18:10:26,941 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-13 18:10:26,941 INFO L299 CfgBuilder]: Removed 4 assume(true) statements. [2021-11-13 18:10:26,943 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 06:10:26 BoogieIcfgContainer [2021-11-13 18:10:26,943 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-13 18:10:26,944 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-11-13 18:10:26,945 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-11-13 18:10:26,948 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-11-13 18:10:26,949 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-11-13 18:10:26,949 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 13.11 06:10:25" (1/3) ... [2021-11-13 18:10:26,950 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@3e8f8050 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 13.11 06:10:26, skipping insertion in model container [2021-11-13 18:10:26,951 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-11-13 18:10:26,951 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:10:26" (2/3) ... [2021-11-13 18:10:26,951 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@3e8f8050 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 13.11 06:10:26, skipping insertion in model container [2021-11-13 18:10:26,951 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-11-13 18:10:26,951 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 06:10:26" (3/3) ... [2021-11-13 18:10:26,953 INFO L388 chiAutomizerObserver]: Analyzing ICFG sep.i [2021-11-13 18:10:27,000 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-11-13 18:10:27,001 INFO L360 BuchiCegarLoop]: Hoare is false [2021-11-13 18:10:27,001 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-11-13 18:10:27,001 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-11-13 18:10:27,001 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-11-13 18:10:27,001 INFO L364 BuchiCegarLoop]: Difference is false [2021-11-13 18:10:27,001 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-11-13 18:10:27,002 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-11-13 18:10:27,025 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 27 states, 26 states have (on average 1.5) internal successors, (39), 26 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) [2021-11-13 18:10:27,045 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 11 [2021-11-13 18:10:27,045 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-13 18:10:27,046 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-13 18:10:27,051 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2021-11-13 18:10:27,052 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-11-13 18:10:27,052 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-11-13 18:10:27,052 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 27 states, 26 states have (on average 1.5) internal successors, (39), 26 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) [2021-11-13 18:10:27,055 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 11 [2021-11-13 18:10:27,055 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-13 18:10:27,055 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-13 18:10:27,056 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2021-11-13 18:10:27,056 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-11-13 18:10:27,063 INFO L791 eck$LassoCheckResult]: Stem: 17#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true;#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(6);call write~init~int(115, #t~string1.base, #t~string1.offset, 1);call write~init~int(101, #t~string1.base, 1 + #t~string1.offset, 1);call write~init~int(112, #t~string1.base, 2 + #t~string1.offset, 1);call write~init~int(46, #t~string1.base, 3 + #t~string1.offset, 1);call write~init~int(99, #t~string1.base, 4 + #t~string1.offset, 1);call write~init~int(0, #t~string1.base, 5 + #t~string1.offset, 1);~N~0 := 0; 9#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet7#1, main_#t~ret8#1, main_#t~mem9#1, main_#t~mem10#1, main_#t~ret11#1, main_#t~mem12#1, main_#t~mem14#1, main_#t~post13#1, main_~i~1#1, main_#t~ret15#1, main_~#x~0#1.base, main_~#x~0#1.offset, main_~temp~0#1, main_~ret~1#1, main_~ret2~0#1, main_~ret5~0#1;~N~0 := main_#t~nondet7#1;havoc main_#t~nondet7#1; 21#L34true assume ~N~0 > 1;call main_~#x~0#1.base, main_~#x~0#1.offset := #Ultimate.allocOnStack(4 * ~N~0);havoc main_~temp~0#1;havoc main_~ret~1#1;havoc main_~ret2~0#1;havoc main_~ret5~0#1;assume { :begin_inline_sep } true;sep_#in~x#1.base, sep_#in~x#1.offset := main_~#x~0#1.base, main_~#x~0#1.offset;havoc sep_#res#1;havoc sep_#t~mem4#1, sep_#t~post5#1, sep_#t~post6#1, sep_#t~post3#1, sep_~i~0#1, sep_~x#1.base, sep_~x#1.offset, sep_~ret~0#1;sep_~x#1.base, sep_~x#1.offset := sep_#in~x#1.base, sep_#in~x#1.offset;sep_~ret~0#1 := 0;sep_~i~0#1 := 0; 23#L20-3true [2021-11-13 18:10:27,064 INFO L793 eck$LassoCheckResult]: Loop: 23#L20-3true assume !!(sep_~i~0#1 < ~N~0);call sep_#t~mem4#1 := read~int(sep_~x#1.base, sep_~x#1.offset + 4 * sep_~i~0#1, 4); 15#L22true assume 0 == (if sep_#t~mem4#1 < 0 && 0 != sep_#t~mem4#1 % 2 then sep_#t~mem4#1 % 2 - 2 else sep_#t~mem4#1 % 2);havoc sep_#t~mem4#1;sep_#t~post5#1 := sep_~ret~0#1;sep_~ret~0#1 := 1 + sep_#t~post5#1;havoc sep_#t~post5#1; 16#L20-2true sep_#t~post3#1 := sep_~i~0#1;sep_~i~0#1 := 1 + sep_#t~post3#1;havoc sep_#t~post3#1; 23#L20-3true [2021-11-13 18:10:27,075 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:10:27,076 INFO L85 PathProgramCache]: Analyzing trace with hash 29858, now seen corresponding path program 1 times [2021-11-13 18:10:27,085 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 18:10:27,086 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2065018108] [2021-11-13 18:10:27,086 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:10:27,087 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 18:10:27,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-13 18:10:27,195 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-13 18:10:27,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-13 18:10:27,240 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-13 18:10:27,243 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:10:27,244 INFO L85 PathProgramCache]: Analyzing trace with hash 42800, now seen corresponding path program 1 times [2021-11-13 18:10:27,244 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 18:10:27,245 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1035968674] [2021-11-13 18:10:27,245 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:10:27,245 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 18:10:27,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-13 18:10:27,263 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-13 18:10:27,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-13 18:10:27,287 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-13 18:10:27,288 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:10:27,288 INFO L85 PathProgramCache]: Analyzing trace with hash 889512687, now seen corresponding path program 1 times [2021-11-13 18:10:27,293 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 18:10:27,293 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [158959657] [2021-11-13 18:10:27,293 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:10:27,294 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 18:10:27,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-13 18:10:27,366 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-13 18:10:27,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-13 18:10:27,429 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-13 18:10:28,258 INFO L210 LassoAnalysis]: Preferences: [2021-11-13 18:10:28,259 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-11-13 18:10:28,259 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-11-13 18:10:28,259 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-11-13 18:10:28,259 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-11-13 18:10:28,259 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-13 18:10:28,260 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-11-13 18:10:28,260 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-11-13 18:10:28,260 INFO L133 ssoRankerPreferences]: Filename of dumped script: sep.i_Iteration1_Lasso [2021-11-13 18:10:28,260 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-11-13 18:10:28,260 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-11-13 18:10:28,281 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-13 18:10:28,806 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-13 18:10:28,809 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-13 18:10:28,811 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-13 18:10:28,813 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-13 18:10:28,816 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-13 18:10:28,819 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-13 18:10:28,821 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-13 18:10:28,823 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-13 18:10:28,842 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-13 18:10:28,845 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-13 18:10:28,847 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-13 18:10:28,850 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-13 18:10:28,852 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-13 18:10:28,856 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-13 18:10:28,860 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-13 18:10:28,871 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-13 18:10:28,873 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-13 18:10:28,876 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-13 18:10:28,878 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-13 18:10:28,881 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-13 18:10:28,883 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-13 18:10:28,885 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-13 18:10:28,898 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-13 18:10:29,337 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-11-13 18:10:29,344 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-11-13 18:10:29,345 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-13 18:10:29,346 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3790920e-7321-45ee-9abd-52e221d3c57d/bin/uautomizer-YU5uOKAj3y/z3 [2021-11-13 18:10:29,349 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3790920e-7321-45ee-9abd-52e221d3c57d/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-13 18:10:29,366 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-13 18:10:29,376 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-13 18:10:29,376 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-13 18:10:29,376 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-13 18:10:29,377 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-13 18:10:29,386 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-11-13 18:10:29,387 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-11-13 18:10:29,391 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3790920e-7321-45ee-9abd-52e221d3c57d/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2021-11-13 18:10:29,401 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-13 18:10:29,438 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3790920e-7321-45ee-9abd-52e221d3c57d/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2021-11-13 18:10:29,439 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-13 18:10:29,439 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3790920e-7321-45ee-9abd-52e221d3c57d/bin/uautomizer-YU5uOKAj3y/z3 [2021-11-13 18:10:29,441 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3790920e-7321-45ee-9abd-52e221d3c57d/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-13 18:10:29,449 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-13 18:10:29,459 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-13 18:10:29,459 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-13 18:10:29,459 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-13 18:10:29,459 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-13 18:10:29,465 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-11-13 18:10:29,466 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-11-13 18:10:29,472 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3790920e-7321-45ee-9abd-52e221d3c57d/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2021-11-13 18:10:29,485 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-13 18:10:29,509 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3790920e-7321-45ee-9abd-52e221d3c57d/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2021-11-13 18:10:29,509 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-13 18:10:29,510 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3790920e-7321-45ee-9abd-52e221d3c57d/bin/uautomizer-YU5uOKAj3y/z3 [2021-11-13 18:10:29,511 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3790920e-7321-45ee-9abd-52e221d3c57d/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-13 18:10:29,511 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3790920e-7321-45ee-9abd-52e221d3c57d/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2021-11-13 18:10:29,513 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 [2021-11-13 18:10:29,523 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-13 18:10:29,523 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-13 18:10:29,523 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-13 18:10:29,524 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-13 18:10:29,528 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-11-13 18:10:29,529 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-11-13 18:10:29,557 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-13 18:10:29,590 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3790920e-7321-45ee-9abd-52e221d3c57d/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2021-11-13 18:10:29,590 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-13 18:10:29,591 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3790920e-7321-45ee-9abd-52e221d3c57d/bin/uautomizer-YU5uOKAj3y/z3 [2021-11-13 18:10:29,593 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3790920e-7321-45ee-9abd-52e221d3c57d/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-13 18:10:29,605 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-13 18:10:29,614 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-13 18:10:29,614 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-13 18:10:29,614 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-13 18:10:29,614 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-13 18:10:29,628 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-11-13 18:10:29,629 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-11-13 18:10:29,634 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3790920e-7321-45ee-9abd-52e221d3c57d/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2021-11-13 18:10:29,649 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-13 18:10:29,684 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3790920e-7321-45ee-9abd-52e221d3c57d/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2021-11-13 18:10:29,684 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-13 18:10:29,684 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3790920e-7321-45ee-9abd-52e221d3c57d/bin/uautomizer-YU5uOKAj3y/z3 [2021-11-13 18:10:29,689 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3790920e-7321-45ee-9abd-52e221d3c57d/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-13 18:10:29,693 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-13 18:10:29,702 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3790920e-7321-45ee-9abd-52e221d3c57d/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2021-11-13 18:10:29,703 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-13 18:10:29,703 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-13 18:10:29,703 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-13 18:10:29,703 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-13 18:10:29,706 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-11-13 18:10:29,707 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-11-13 18:10:29,733 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-13 18:10:29,768 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3790920e-7321-45ee-9abd-52e221d3c57d/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2021-11-13 18:10:29,769 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-13 18:10:29,769 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3790920e-7321-45ee-9abd-52e221d3c57d/bin/uautomizer-YU5uOKAj3y/z3 [2021-11-13 18:10:29,770 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3790920e-7321-45ee-9abd-52e221d3c57d/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-13 18:10:29,771 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3790920e-7321-45ee-9abd-52e221d3c57d/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2021-11-13 18:10:29,771 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-13 18:10:29,779 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-13 18:10:29,779 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-13 18:10:29,779 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-13 18:10:29,779 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-13 18:10:29,781 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-11-13 18:10:29,781 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-11-13 18:10:29,809 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-13 18:10:29,835 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3790920e-7321-45ee-9abd-52e221d3c57d/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2021-11-13 18:10:29,835 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-13 18:10:29,836 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3790920e-7321-45ee-9abd-52e221d3c57d/bin/uautomizer-YU5uOKAj3y/z3 [2021-11-13 18:10:29,841 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3790920e-7321-45ee-9abd-52e221d3c57d/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-13 18:10:29,843 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3790920e-7321-45ee-9abd-52e221d3c57d/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2021-11-13 18:10:29,845 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-13 18:10:29,855 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-13 18:10:29,855 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-13 18:10:29,855 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-13 18:10:29,855 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-13 18:10:29,855 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-13 18:10:29,857 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-13 18:10:29,857 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-13 18:10:29,877 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-13 18:10:29,905 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3790920e-7321-45ee-9abd-52e221d3c57d/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Ended with exit code 0 [2021-11-13 18:10:29,905 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-13 18:10:29,905 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3790920e-7321-45ee-9abd-52e221d3c57d/bin/uautomizer-YU5uOKAj3y/z3 [2021-11-13 18:10:29,906 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3790920e-7321-45ee-9abd-52e221d3c57d/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-13 18:10:29,907 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3790920e-7321-45ee-9abd-52e221d3c57d/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2021-11-13 18:10:29,908 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-13 18:10:29,915 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-13 18:10:29,915 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-13 18:10:29,915 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-13 18:10:29,915 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-13 18:10:29,917 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-11-13 18:10:29,917 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-11-13 18:10:29,930 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-13 18:10:29,953 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3790920e-7321-45ee-9abd-52e221d3c57d/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Forceful destruction successful, exit code 0 [2021-11-13 18:10:29,953 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-13 18:10:29,954 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3790920e-7321-45ee-9abd-52e221d3c57d/bin/uautomizer-YU5uOKAj3y/z3 [2021-11-13 18:10:29,954 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3790920e-7321-45ee-9abd-52e221d3c57d/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-13 18:10:29,965 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3790920e-7321-45ee-9abd-52e221d3c57d/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2021-11-13 18:10:29,966 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-13 18:10:29,974 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-13 18:10:29,974 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-13 18:10:29,974 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-13 18:10:29,974 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-13 18:10:29,977 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-11-13 18:10:29,977 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-11-13 18:10:29,998 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-13 18:10:30,018 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3790920e-7321-45ee-9abd-52e221d3c57d/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Ended with exit code 0 [2021-11-13 18:10:30,018 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-13 18:10:30,019 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3790920e-7321-45ee-9abd-52e221d3c57d/bin/uautomizer-YU5uOKAj3y/z3 [2021-11-13 18:10:30,019 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3790920e-7321-45ee-9abd-52e221d3c57d/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-13 18:10:30,023 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3790920e-7321-45ee-9abd-52e221d3c57d/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2021-11-13 18:10:30,024 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-13 18:10:30,031 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-13 18:10:30,031 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-13 18:10:30,031 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-13 18:10:30,031 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-13 18:10:30,033 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-11-13 18:10:30,033 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-11-13 18:10:30,060 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-13 18:10:30,097 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3790920e-7321-45ee-9abd-52e221d3c57d/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Forceful destruction successful, exit code 0 [2021-11-13 18:10:30,098 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-13 18:10:30,098 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3790920e-7321-45ee-9abd-52e221d3c57d/bin/uautomizer-YU5uOKAj3y/z3 [2021-11-13 18:10:30,102 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3790920e-7321-45ee-9abd-52e221d3c57d/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-13 18:10:30,106 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3790920e-7321-45ee-9abd-52e221d3c57d/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2021-11-13 18:10:30,108 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-13 18:10:30,116 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-13 18:10:30,116 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-13 18:10:30,116 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-13 18:10:30,116 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-13 18:10:30,118 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-11-13 18:10:30,118 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-11-13 18:10:30,147 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-13 18:10:30,170 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3790920e-7321-45ee-9abd-52e221d3c57d/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Ended with exit code 0 [2021-11-13 18:10:30,171 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-13 18:10:30,171 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3790920e-7321-45ee-9abd-52e221d3c57d/bin/uautomizer-YU5uOKAj3y/z3 [2021-11-13 18:10:30,172 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3790920e-7321-45ee-9abd-52e221d3c57d/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-13 18:10:30,173 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3790920e-7321-45ee-9abd-52e221d3c57d/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2021-11-13 18:10:30,173 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-13 18:10:30,180 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-13 18:10:30,180 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-13 18:10:30,181 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-13 18:10:30,181 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-13 18:10:30,183 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-11-13 18:10:30,183 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-11-13 18:10:30,195 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-13 18:10:30,225 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3790920e-7321-45ee-9abd-52e221d3c57d/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Forceful destruction successful, exit code 0 [2021-11-13 18:10:30,226 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-13 18:10:30,226 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3790920e-7321-45ee-9abd-52e221d3c57d/bin/uautomizer-YU5uOKAj3y/z3 [2021-11-13 18:10:30,226 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3790920e-7321-45ee-9abd-52e221d3c57d/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-13 18:10:30,227 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3790920e-7321-45ee-9abd-52e221d3c57d/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2021-11-13 18:10:30,228 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-13 18:10:30,236 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-13 18:10:30,236 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-13 18:10:30,236 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-13 18:10:30,236 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-13 18:10:30,241 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-11-13 18:10:30,242 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-11-13 18:10:30,265 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-13 18:10:30,293 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3790920e-7321-45ee-9abd-52e221d3c57d/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Forceful destruction successful, exit code 0 [2021-11-13 18:10:30,293 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-13 18:10:30,293 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3790920e-7321-45ee-9abd-52e221d3c57d/bin/uautomizer-YU5uOKAj3y/z3 [2021-11-13 18:10:30,294 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3790920e-7321-45ee-9abd-52e221d3c57d/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-13 18:10:30,295 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3790920e-7321-45ee-9abd-52e221d3c57d/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2021-11-13 18:10:30,296 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-13 18:10:30,303 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-13 18:10:30,304 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-13 18:10:30,304 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-13 18:10:30,304 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-13 18:10:30,315 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-11-13 18:10:30,315 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-11-13 18:10:30,331 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-11-13 18:10:30,431 INFO L443 ModelExtractionUtils]: Simplification made 20 calls to the SMT solver. [2021-11-13 18:10:30,432 INFO L444 ModelExtractionUtils]: 13 out of 31 variables were initially zero. Simplification set additionally 14 variables to zero. [2021-11-13 18:10:30,433 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-13 18:10:30,433 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3790920e-7321-45ee-9abd-52e221d3c57d/bin/uautomizer-YU5uOKAj3y/z3 [2021-11-13 18:10:30,446 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3790920e-7321-45ee-9abd-52e221d3c57d/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-13 18:10:30,471 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-11-13 18:10:30,489 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3790920e-7321-45ee-9abd-52e221d3c57d/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2021-11-13 18:10:30,490 INFO L438 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2021-11-13 18:10:30,490 INFO L513 LassoAnalysis]: Proved termination. [2021-11-13 18:10:30,491 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_sep_~i~0#1, v_rep(select #length ULTIMATE.start_main_~#x~0#1.base)_1) = -4*ULTIMATE.start_sep_~i~0#1 + 1*v_rep(select #length ULTIMATE.start_main_~#x~0#1.base)_1 Supporting invariants [1*ULTIMATE.start_sep_~x#1.offset >= 0] [2021-11-13 18:10:30,562 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3790920e-7321-45ee-9abd-52e221d3c57d/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Forceful destruction successful, exit code 0 [2021-11-13 18:10:30,687 INFO L297 tatePredicateManager]: 37 out of 39 supporting invariants were superfluous and have been removed [2021-11-13 18:10:30,725 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:10:30,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:10:30,760 INFO L263 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 9 conjunts are in the unsatisfiable core [2021-11-13 18:10:30,763 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 18:10:30,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:10:30,797 INFO L263 TraceCheckSpWp]: Trace formula consists of 18 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-13 18:10:30,797 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 18:10:30,869 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 18:10:30,899 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 [2021-11-13 18:10:30,901 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 27 states, 26 states have (on average 1.5) internal successors, (39), 26 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) Second operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 18:10:30,979 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 27 states, 26 states have (on average 1.5) internal successors, (39), 26 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). Second operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 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 57 states and 81 transitions. Complement of second has 8 states. [2021-11-13 18:10:30,982 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 [2021-11-13 18:10:30,990 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 18:10:30,991 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 43 transitions. [2021-11-13 18:10:30,992 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 43 transitions. Stem has 3 letters. Loop has 3 letters. [2021-11-13 18:10:30,993 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-13 18:10:30,993 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 43 transitions. Stem has 6 letters. Loop has 3 letters. [2021-11-13 18:10:30,994 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-13 18:10:30,994 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 43 transitions. Stem has 3 letters. Loop has 6 letters. [2021-11-13 18:10:30,995 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-13 18:10:30,995 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 57 states and 81 transitions. [2021-11-13 18:10:31,007 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 8 [2021-11-13 18:10:31,012 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 57 states to 20 states and 29 transitions. [2021-11-13 18:10:31,013 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 16 [2021-11-13 18:10:31,013 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 17 [2021-11-13 18:10:31,014 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 29 transitions. [2021-11-13 18:10:31,014 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-13 18:10:31,014 INFO L681 BuchiCegarLoop]: Abstraction has 20 states and 29 transitions. [2021-11-13 18:10:31,030 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states and 29 transitions. [2021-11-13 18:10:31,039 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 20. [2021-11-13 18:10:31,039 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20 states, 20 states have (on average 1.45) internal successors, (29), 19 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) [2021-11-13 18:10:31,042 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 29 transitions. [2021-11-13 18:10:31,043 INFO L704 BuchiCegarLoop]: Abstraction has 20 states and 29 transitions. [2021-11-13 18:10:31,043 INFO L587 BuchiCegarLoop]: Abstraction has 20 states and 29 transitions. [2021-11-13 18:10:31,043 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-11-13 18:10:31,043 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 20 states and 29 transitions. [2021-11-13 18:10:31,046 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 8 [2021-11-13 18:10:31,047 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-13 18:10:31,047 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-13 18:10:31,047 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2021-11-13 18:10:31,047 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-11-13 18:10:31,048 INFO L791 eck$LassoCheckResult]: Stem: 293#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#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(6);call write~init~int(115, #t~string1.base, #t~string1.offset, 1);call write~init~int(101, #t~string1.base, 1 + #t~string1.offset, 1);call write~init~int(112, #t~string1.base, 2 + #t~string1.offset, 1);call write~init~int(46, #t~string1.base, 3 + #t~string1.offset, 1);call write~init~int(99, #t~string1.base, 4 + #t~string1.offset, 1);call write~init~int(0, #t~string1.base, 5 + #t~string1.offset, 1);~N~0 := 0; 294#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet7#1, main_#t~ret8#1, main_#t~mem9#1, main_#t~mem10#1, main_#t~ret11#1, main_#t~mem12#1, main_#t~mem14#1, main_#t~post13#1, main_~i~1#1, main_#t~ret15#1, main_~#x~0#1.base, main_~#x~0#1.offset, main_~temp~0#1, main_~ret~1#1, main_~ret2~0#1, main_~ret5~0#1;~N~0 := main_#t~nondet7#1;havoc main_#t~nondet7#1; 305#L34 assume ~N~0 > 1;call main_~#x~0#1.base, main_~#x~0#1.offset := #Ultimate.allocOnStack(4 * ~N~0);havoc main_~temp~0#1;havoc main_~ret~1#1;havoc main_~ret2~0#1;havoc main_~ret5~0#1;assume { :begin_inline_sep } true;sep_#in~x#1.base, sep_#in~x#1.offset := main_~#x~0#1.base, main_~#x~0#1.offset;havoc sep_#res#1;havoc sep_#t~mem4#1, sep_#t~post5#1, sep_#t~post6#1, sep_#t~post3#1, sep_~i~0#1, sep_~x#1.base, sep_~x#1.offset, sep_~ret~0#1;sep_~x#1.base, sep_~x#1.offset := sep_#in~x#1.base, sep_#in~x#1.offset;sep_~ret~0#1 := 0;sep_~i~0#1 := 0; 309#L20-3 assume !(sep_~i~0#1 < ~N~0); 306#L20-4 sep_#res#1 := (if sep_~ret~0#1 % 4294967296 <= 2147483647 then sep_~ret~0#1 % 4294967296 else sep_~ret~0#1 % 4294967296 - 4294967296); 295#L27 main_#t~ret8#1 := sep_#res#1;assume { :end_inline_sep } true;main_~ret~1#1 := main_#t~ret8#1;havoc main_#t~ret8#1;call main_#t~mem9#1 := read~int(main_~#x~0#1.base, main_~#x~0#1.offset, 4);main_~temp~0#1 := main_#t~mem9#1;havoc main_#t~mem9#1;call main_#t~mem10#1 := read~int(main_~#x~0#1.base, 4 + main_~#x~0#1.offset, 4);call write~int(main_#t~mem10#1, main_~#x~0#1.base, main_~#x~0#1.offset, 4);havoc main_#t~mem10#1;call write~int(main_~temp~0#1, main_~#x~0#1.base, 4 + main_~#x~0#1.offset, 4);assume { :begin_inline_sep } true;sep_#in~x#1.base, sep_#in~x#1.offset := main_~#x~0#1.base, main_~#x~0#1.offset;havoc sep_#res#1;havoc sep_#t~mem4#1, sep_#t~post5#1, sep_#t~post6#1, sep_#t~post3#1, sep_~i~0#1, sep_~x#1.base, sep_~x#1.offset, sep_~ret~0#1;sep_~x#1.base, sep_~x#1.offset := sep_#in~x#1.base, sep_#in~x#1.offset;sep_~ret~0#1 := 0;sep_~i~0#1 := 0; 296#L20-8 [2021-11-13 18:10:31,048 INFO L793 eck$LassoCheckResult]: Loop: 296#L20-8 assume !!(sep_~i~0#1 < ~N~0);call sep_#t~mem4#1 := read~int(sep_~x#1.base, sep_~x#1.offset + 4 * sep_~i~0#1, 4); 297#L22-2 assume 0 == (if sep_#t~mem4#1 < 0 && 0 != sep_#t~mem4#1 % 2 then sep_#t~mem4#1 % 2 - 2 else sep_#t~mem4#1 % 2);havoc sep_#t~mem4#1;sep_#t~post5#1 := sep_~ret~0#1;sep_~ret~0#1 := 1 + sep_#t~post5#1;havoc sep_#t~post5#1; 304#L20-7 sep_#t~post3#1 := sep_~i~0#1;sep_~i~0#1 := 1 + sep_#t~post3#1;havoc sep_#t~post3#1; 296#L20-8 [2021-11-13 18:10:31,050 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:10:31,050 INFO L85 PathProgramCache]: Analyzing trace with hash 889511019, now seen corresponding path program 1 times [2021-11-13 18:10:31,051 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 18:10:31,051 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [214656549] [2021-11-13 18:10:31,052 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:10:31,052 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 18:10:31,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:10:31,150 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 18:10:31,151 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 18:10:31,152 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [214656549] [2021-11-13 18:10:31,152 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [214656549] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 18:10:31,153 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 18:10:31,154 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-13 18:10:31,154 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1952832221] [2021-11-13 18:10:31,155 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 18:10:31,157 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-11-13 18:10:31,158 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:10:31,158 INFO L85 PathProgramCache]: Analyzing trace with hash 63653, now seen corresponding path program 1 times [2021-11-13 18:10:31,158 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 18:10:31,159 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [86666827] [2021-11-13 18:10:31,159 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:10:31,160 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 18:10:31,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-13 18:10:31,189 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-13 18:10:31,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-13 18:10:31,201 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-13 18:10:31,262 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 18:10:31,264 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-13 18:10:31,266 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-13 18:10:31,267 INFO L87 Difference]: Start difference. First operand 20 states and 29 transitions. cyclomatic complexity: 13 Second operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 18:10:31,304 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 18:10:31,304 INFO L93 Difference]: Finished difference Result 22 states and 29 transitions. [2021-11-13 18:10:31,304 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-13 18:10:31,308 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 22 states and 29 transitions. [2021-11-13 18:10:31,313 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 8 [2021-11-13 18:10:31,314 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 22 states to 22 states and 29 transitions. [2021-11-13 18:10:31,314 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 17 [2021-11-13 18:10:31,316 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 17 [2021-11-13 18:10:31,316 INFO L73 IsDeterministic]: Start isDeterministic. Operand 22 states and 29 transitions. [2021-11-13 18:10:31,316 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-13 18:10:31,316 INFO L681 BuchiCegarLoop]: Abstraction has 22 states and 29 transitions. [2021-11-13 18:10:31,317 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states and 29 transitions. [2021-11-13 18:10:31,319 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 20. [2021-11-13 18:10:31,320 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20 states, 20 states have (on average 1.3) internal successors, (26), 19 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 18:10:31,320 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 26 transitions. [2021-11-13 18:10:31,320 INFO L704 BuchiCegarLoop]: Abstraction has 20 states and 26 transitions. [2021-11-13 18:10:31,320 INFO L587 BuchiCegarLoop]: Abstraction has 20 states and 26 transitions. [2021-11-13 18:10:31,321 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2021-11-13 18:10:31,321 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 20 states and 26 transitions. [2021-11-13 18:10:31,322 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 8 [2021-11-13 18:10:31,322 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-13 18:10:31,323 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-13 18:10:31,323 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 18:10:31,323 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-11-13 18:10:31,324 INFO L791 eck$LassoCheckResult]: Stem: 341#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#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(6);call write~init~int(115, #t~string1.base, #t~string1.offset, 1);call write~init~int(101, #t~string1.base, 1 + #t~string1.offset, 1);call write~init~int(112, #t~string1.base, 2 + #t~string1.offset, 1);call write~init~int(46, #t~string1.base, 3 + #t~string1.offset, 1);call write~init~int(99, #t~string1.base, 4 + #t~string1.offset, 1);call write~init~int(0, #t~string1.base, 5 + #t~string1.offset, 1);~N~0 := 0; 342#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet7#1, main_#t~ret8#1, main_#t~mem9#1, main_#t~mem10#1, main_#t~ret11#1, main_#t~mem12#1, main_#t~mem14#1, main_#t~post13#1, main_~i~1#1, main_#t~ret15#1, main_~#x~0#1.base, main_~#x~0#1.offset, main_~temp~0#1, main_~ret~1#1, main_~ret2~0#1, main_~ret5~0#1;~N~0 := main_#t~nondet7#1;havoc main_#t~nondet7#1; 353#L34 assume ~N~0 > 1;call main_~#x~0#1.base, main_~#x~0#1.offset := #Ultimate.allocOnStack(4 * ~N~0);havoc main_~temp~0#1;havoc main_~ret~1#1;havoc main_~ret2~0#1;havoc main_~ret5~0#1;assume { :begin_inline_sep } true;sep_#in~x#1.base, sep_#in~x#1.offset := main_~#x~0#1.base, main_~#x~0#1.offset;havoc sep_#res#1;havoc sep_#t~mem4#1, sep_#t~post5#1, sep_#t~post6#1, sep_#t~post3#1, sep_~i~0#1, sep_~x#1.base, sep_~x#1.offset, sep_~ret~0#1;sep_~x#1.base, sep_~x#1.offset := sep_#in~x#1.base, sep_#in~x#1.offset;sep_~ret~0#1 := 0;sep_~i~0#1 := 0; 357#L20-3 assume !!(sep_~i~0#1 < ~N~0);call sep_#t~mem4#1 := read~int(sep_~x#1.base, sep_~x#1.offset + 4 * sep_~i~0#1, 4); 355#L22 assume !(0 == (if sep_#t~mem4#1 < 0 && 0 != sep_#t~mem4#1 % 2 then sep_#t~mem4#1 % 2 - 2 else sep_#t~mem4#1 % 2));havoc sep_#t~mem4#1;sep_#t~post6#1 := sep_~ret~0#1;sep_~ret~0#1 := sep_#t~post6#1 - 1;havoc sep_#t~post6#1; 356#L20-2 sep_#t~post3#1 := sep_~i~0#1;sep_~i~0#1 := 1 + sep_#t~post3#1;havoc sep_#t~post3#1; 358#L20-3 assume !(sep_~i~0#1 < ~N~0); 354#L20-4 sep_#res#1 := (if sep_~ret~0#1 % 4294967296 <= 2147483647 then sep_~ret~0#1 % 4294967296 else sep_~ret~0#1 % 4294967296 - 4294967296); 343#L27 main_#t~ret8#1 := sep_#res#1;assume { :end_inline_sep } true;main_~ret~1#1 := main_#t~ret8#1;havoc main_#t~ret8#1;call main_#t~mem9#1 := read~int(main_~#x~0#1.base, main_~#x~0#1.offset, 4);main_~temp~0#1 := main_#t~mem9#1;havoc main_#t~mem9#1;call main_#t~mem10#1 := read~int(main_~#x~0#1.base, 4 + main_~#x~0#1.offset, 4);call write~int(main_#t~mem10#1, main_~#x~0#1.base, main_~#x~0#1.offset, 4);havoc main_#t~mem10#1;call write~int(main_~temp~0#1, main_~#x~0#1.base, 4 + main_~#x~0#1.offset, 4);assume { :begin_inline_sep } true;sep_#in~x#1.base, sep_#in~x#1.offset := main_~#x~0#1.base, main_~#x~0#1.offset;havoc sep_#res#1;havoc sep_#t~mem4#1, sep_#t~post5#1, sep_#t~post6#1, sep_#t~post3#1, sep_~i~0#1, sep_~x#1.base, sep_~x#1.offset, sep_~ret~0#1;sep_~x#1.base, sep_~x#1.offset := sep_#in~x#1.base, sep_#in~x#1.offset;sep_~ret~0#1 := 0;sep_~i~0#1 := 0; 344#L20-8 [2021-11-13 18:10:31,324 INFO L793 eck$LassoCheckResult]: Loop: 344#L20-8 assume !!(sep_~i~0#1 < ~N~0);call sep_#t~mem4#1 := read~int(sep_~x#1.base, sep_~x#1.offset + 4 * sep_~i~0#1, 4); 345#L22-2 assume 0 == (if sep_#t~mem4#1 < 0 && 0 != sep_#t~mem4#1 % 2 then sep_#t~mem4#1 % 2 - 2 else sep_#t~mem4#1 % 2);havoc sep_#t~mem4#1;sep_#t~post5#1 := sep_~ret~0#1;sep_~ret~0#1 := 1 + sep_#t~post5#1;havoc sep_#t~post5#1; 352#L20-7 sep_#t~post3#1 := sep_~i~0#1;sep_~i~0#1 := 1 + sep_#t~post3#1;havoc sep_#t~post3#1; 344#L20-8 [2021-11-13 18:10:31,324 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:10:31,324 INFO L85 PathProgramCache]: Analyzing trace with hash -473899520, now seen corresponding path program 1 times [2021-11-13 18:10:31,328 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 18:10:31,328 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1421325687] [2021-11-13 18:10:31,329 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:10:31,329 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 18:10:31,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:10:31,370 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 18:10:31,370 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 18:10:31,370 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1421325687] [2021-11-13 18:10:31,371 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1421325687] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-13 18:10:31,371 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1650791209] [2021-11-13 18:10:31,371 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:10:31,371 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-13 18:10:31,371 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3790920e-7321-45ee-9abd-52e221d3c57d/bin/uautomizer-YU5uOKAj3y/z3 [2021-11-13 18:10:31,372 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3790920e-7321-45ee-9abd-52e221d3c57d/bin/uautomizer-YU5uOKAj3y/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-13 18:10:31,377 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3790920e-7321-45ee-9abd-52e221d3c57d/bin/uautomizer-YU5uOKAj3y/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2021-11-13 18:10:31,462 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3790920e-7321-45ee-9abd-52e221d3c57d/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Forceful destruction successful, exit code 0 [2021-11-13 18:10:31,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:10:31,480 INFO L263 TraceCheckSpWp]: Trace formula consists of 99 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-13 18:10:31,481 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 18:10:31,562 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 18:10:31,562 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 18:10:31,615 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 18:10:31,616 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1650791209] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-13 18:10:31,617 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-13 18:10:31,617 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 7 [2021-11-13 18:10:31,617 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [758559984] [2021-11-13 18:10:31,617 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-13 18:10:31,618 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-11-13 18:10:31,619 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:10:31,619 INFO L85 PathProgramCache]: Analyzing trace with hash 63653, now seen corresponding path program 2 times [2021-11-13 18:10:31,619 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 18:10:31,620 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1870581471] [2021-11-13 18:10:31,620 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:10:31,620 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 18:10:31,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-13 18:10:31,626 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-13 18:10:31,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-13 18:10:31,634 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-13 18:10:31,706 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 18:10:31,707 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-13 18:10:31,707 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=22, Unknown=0, NotChecked=0, Total=42 [2021-11-13 18:10:31,708 INFO L87 Difference]: Start difference. First operand 20 states and 26 transitions. cyclomatic complexity: 10 Second operand has 7 states, 7 states have (on average 2.5714285714285716) internal successors, (18), 7 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 18:10:31,792 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 18:10:31,792 INFO L93 Difference]: Finished difference Result 25 states and 33 transitions. [2021-11-13 18:10:31,793 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-13 18:10:31,795 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 25 states and 33 transitions. [2021-11-13 18:10:31,798 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 8 [2021-11-13 18:10:31,800 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 25 states to 25 states and 33 transitions. [2021-11-13 18:10:31,800 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 17 [2021-11-13 18:10:31,800 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 17 [2021-11-13 18:10:31,801 INFO L73 IsDeterministic]: Start isDeterministic. Operand 25 states and 33 transitions. [2021-11-13 18:10:31,801 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-13 18:10:31,801 INFO L681 BuchiCegarLoop]: Abstraction has 25 states and 33 transitions. [2021-11-13 18:10:31,801 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states and 33 transitions. [2021-11-13 18:10:31,807 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 23. [2021-11-13 18:10:31,807 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23 states, 23 states have (on average 1.3043478260869565) internal successors, (30), 22 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) [2021-11-13 18:10:31,809 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 30 transitions. [2021-11-13 18:10:31,809 INFO L704 BuchiCegarLoop]: Abstraction has 23 states and 30 transitions. [2021-11-13 18:10:31,810 INFO L587 BuchiCegarLoop]: Abstraction has 23 states and 30 transitions. [2021-11-13 18:10:31,810 INFO L425 BuchiCegarLoop]: ======== Iteration 4============ [2021-11-13 18:10:31,810 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 23 states and 30 transitions. [2021-11-13 18:10:31,810 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 8 [2021-11-13 18:10:31,811 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-13 18:10:31,811 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-13 18:10:31,812 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 2, 1, 1, 1, 1, 1, 1] [2021-11-13 18:10:31,812 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-11-13 18:10:31,812 INFO L791 eck$LassoCheckResult]: Stem: 442#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#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(6);call write~init~int(115, #t~string1.base, #t~string1.offset, 1);call write~init~int(101, #t~string1.base, 1 + #t~string1.offset, 1);call write~init~int(112, #t~string1.base, 2 + #t~string1.offset, 1);call write~init~int(46, #t~string1.base, 3 + #t~string1.offset, 1);call write~init~int(99, #t~string1.base, 4 + #t~string1.offset, 1);call write~init~int(0, #t~string1.base, 5 + #t~string1.offset, 1);~N~0 := 0; 443#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet7#1, main_#t~ret8#1, main_#t~mem9#1, main_#t~mem10#1, main_#t~ret11#1, main_#t~mem12#1, main_#t~mem14#1, main_#t~post13#1, main_~i~1#1, main_#t~ret15#1, main_~#x~0#1.base, main_~#x~0#1.offset, main_~temp~0#1, main_~ret~1#1, main_~ret2~0#1, main_~ret5~0#1;~N~0 := main_#t~nondet7#1;havoc main_#t~nondet7#1; 455#L34 assume ~N~0 > 1;call main_~#x~0#1.base, main_~#x~0#1.offset := #Ultimate.allocOnStack(4 * ~N~0);havoc main_~temp~0#1;havoc main_~ret~1#1;havoc main_~ret2~0#1;havoc main_~ret5~0#1;assume { :begin_inline_sep } true;sep_#in~x#1.base, sep_#in~x#1.offset := main_~#x~0#1.base, main_~#x~0#1.offset;havoc sep_#res#1;havoc sep_#t~mem4#1, sep_#t~post5#1, sep_#t~post6#1, sep_#t~post3#1, sep_~i~0#1, sep_~x#1.base, sep_~x#1.offset, sep_~ret~0#1;sep_~x#1.base, sep_~x#1.offset := sep_#in~x#1.base, sep_#in~x#1.offset;sep_~ret~0#1 := 0;sep_~i~0#1 := 0; 460#L20-3 assume !!(sep_~i~0#1 < ~N~0);call sep_#t~mem4#1 := read~int(sep_~x#1.base, sep_~x#1.offset + 4 * sep_~i~0#1, 4); 461#L22 assume !(0 == (if sep_#t~mem4#1 < 0 && 0 != sep_#t~mem4#1 % 2 then sep_#t~mem4#1 % 2 - 2 else sep_#t~mem4#1 % 2));havoc sep_#t~mem4#1;sep_#t~post6#1 := sep_~ret~0#1;sep_~ret~0#1 := sep_#t~post6#1 - 1;havoc sep_#t~post6#1; 463#L20-2 sep_#t~post3#1 := sep_~i~0#1;sep_~i~0#1 := 1 + sep_#t~post3#1;havoc sep_#t~post3#1; 462#L20-3 assume !!(sep_~i~0#1 < ~N~0);call sep_#t~mem4#1 := read~int(sep_~x#1.base, sep_~x#1.offset + 4 * sep_~i~0#1, 4); 458#L22 assume !(0 == (if sep_#t~mem4#1 < 0 && 0 != sep_#t~mem4#1 % 2 then sep_#t~mem4#1 % 2 - 2 else sep_#t~mem4#1 % 2));havoc sep_#t~mem4#1;sep_#t~post6#1 := sep_~ret~0#1;sep_~ret~0#1 := sep_#t~post6#1 - 1;havoc sep_#t~post6#1; 459#L20-2 sep_#t~post3#1 := sep_~i~0#1;sep_~i~0#1 := 1 + sep_#t~post3#1;havoc sep_#t~post3#1; 464#L20-3 assume !(sep_~i~0#1 < ~N~0); 457#L20-4 sep_#res#1 := (if sep_~ret~0#1 % 4294967296 <= 2147483647 then sep_~ret~0#1 % 4294967296 else sep_~ret~0#1 % 4294967296 - 4294967296); 446#L27 main_#t~ret8#1 := sep_#res#1;assume { :end_inline_sep } true;main_~ret~1#1 := main_#t~ret8#1;havoc main_#t~ret8#1;call main_#t~mem9#1 := read~int(main_~#x~0#1.base, main_~#x~0#1.offset, 4);main_~temp~0#1 := main_#t~mem9#1;havoc main_#t~mem9#1;call main_#t~mem10#1 := read~int(main_~#x~0#1.base, 4 + main_~#x~0#1.offset, 4);call write~int(main_#t~mem10#1, main_~#x~0#1.base, main_~#x~0#1.offset, 4);havoc main_#t~mem10#1;call write~int(main_~temp~0#1, main_~#x~0#1.base, 4 + main_~#x~0#1.offset, 4);assume { :begin_inline_sep } true;sep_#in~x#1.base, sep_#in~x#1.offset := main_~#x~0#1.base, main_~#x~0#1.offset;havoc sep_#res#1;havoc sep_#t~mem4#1, sep_#t~post5#1, sep_#t~post6#1, sep_#t~post3#1, sep_~i~0#1, sep_~x#1.base, sep_~x#1.offset, sep_~ret~0#1;sep_~x#1.base, sep_~x#1.offset := sep_#in~x#1.base, sep_#in~x#1.offset;sep_~ret~0#1 := 0;sep_~i~0#1 := 0; 447#L20-8 [2021-11-13 18:10:31,814 INFO L793 eck$LassoCheckResult]: Loop: 447#L20-8 assume !!(sep_~i~0#1 < ~N~0);call sep_#t~mem4#1 := read~int(sep_~x#1.base, sep_~x#1.offset + 4 * sep_~i~0#1, 4); 448#L22-2 assume 0 == (if sep_#t~mem4#1 < 0 && 0 != sep_#t~mem4#1 % 2 then sep_#t~mem4#1 % 2 - 2 else sep_#t~mem4#1 % 2);havoc sep_#t~mem4#1;sep_#t~post5#1 := sep_~ret~0#1;sep_~ret~0#1 := 1 + sep_#t~post5#1;havoc sep_#t~post5#1; 456#L20-7 sep_#t~post3#1 := sep_~i~0#1;sep_~i~0#1 := 1 + sep_#t~post3#1;havoc sep_#t~post3#1; 447#L20-8 [2021-11-13 18:10:31,814 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:10:31,814 INFO L85 PathProgramCache]: Analyzing trace with hash -331548597, now seen corresponding path program 2 times [2021-11-13 18:10:31,814 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 18:10:31,815 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [403532064] [2021-11-13 18:10:31,815 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:10:31,815 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 18:10:31,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-13 18:10:31,894 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-13 18:10:31,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-13 18:10:31,971 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-13 18:10:31,972 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:10:31,972 INFO L85 PathProgramCache]: Analyzing trace with hash 63653, now seen corresponding path program 3 times [2021-11-13 18:10:31,972 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 18:10:31,972 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [228462509] [2021-11-13 18:10:31,973 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:10:31,973 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 18:10:31,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-13 18:10:31,981 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-13 18:10:31,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-13 18:10:31,998 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-13 18:10:31,999 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:10:31,999 INFO L85 PathProgramCache]: Analyzing trace with hash 1260561435, now seen corresponding path program 1 times [2021-11-13 18:10:31,999 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 18:10:32,000 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1603894350] [2021-11-13 18:10:32,000 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:10:32,000 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 18:10:32,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:10:32,376 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 18:10:32,376 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 18:10:32,376 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1603894350] [2021-11-13 18:10:32,377 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1603894350] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-13 18:10:32,377 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1328261046] [2021-11-13 18:10:32,377 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:10:32,377 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-13 18:10:32,378 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3790920e-7321-45ee-9abd-52e221d3c57d/bin/uautomizer-YU5uOKAj3y/z3 [2021-11-13 18:10:32,381 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3790920e-7321-45ee-9abd-52e221d3c57d/bin/uautomizer-YU5uOKAj3y/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-13 18:10:32,410 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3790920e-7321-45ee-9abd-52e221d3c57d/bin/uautomizer-YU5uOKAj3y/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2021-11-13 18:10:32,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:10:32,451 INFO L263 TraceCheckSpWp]: Trace formula consists of 124 conjuncts, 34 conjunts are in the unsatisfiable core [2021-11-13 18:10:32,452 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 18:10:32,641 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 18:10:32,642 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 42 treesize of output 26 [2021-11-13 18:10:32,683 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 15 [2021-11-13 18:10:32,747 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 18:10:32,747 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 18:10:32,901 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 18:10:32,902 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 66 treesize of output 60 [2021-11-13 18:10:32,935 INFO L354 Elim1Store]: treesize reduction 9, result has 10.0 percent of original size [2021-11-13 18:10:32,935 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 42 treesize of output 30 [2021-11-13 18:10:32,989 INFO L354 Elim1Store]: treesize reduction 10, result has 73.0 percent of original size [2021-11-13 18:10:32,989 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 57 treesize of output 65 [2021-11-13 18:10:33,120 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 18:10:33,120 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1328261046] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-13 18:10:33,120 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-13 18:10:33,120 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 13 [2021-11-13 18:10:33,120 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1989437017] [2021-11-13 18:10:33,120 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-13 18:10:33,176 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 18:10:33,176 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-11-13 18:10:33,177 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=126, Unknown=0, NotChecked=0, Total=156 [2021-11-13 18:10:33,177 INFO L87 Difference]: Start difference. First operand 23 states and 30 transitions. cyclomatic complexity: 11 Second operand has 13 states, 13 states have (on average 2.0) internal successors, (26), 13 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 18:10:33,922 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 18:10:33,922 INFO L93 Difference]: Finished difference Result 101 states and 135 transitions. [2021-11-13 18:10:33,923 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-11-13 18:10:33,924 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 101 states and 135 transitions. [2021-11-13 18:10:33,926 INFO L131 ngComponentsAnalysis]: Automaton has 11 accepting balls. 28 [2021-11-13 18:10:33,935 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 101 states to 101 states and 135 transitions. [2021-11-13 18:10:33,936 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 89 [2021-11-13 18:10:33,937 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 89 [2021-11-13 18:10:33,938 INFO L73 IsDeterministic]: Start isDeterministic. Operand 101 states and 135 transitions. [2021-11-13 18:10:33,939 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-13 18:10:33,940 INFO L681 BuchiCegarLoop]: Abstraction has 101 states and 135 transitions. [2021-11-13 18:10:33,941 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 101 states and 135 transitions. [2021-11-13 18:10:33,945 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 101 to 31. [2021-11-13 18:10:33,946 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31 states, 31 states have (on average 1.3548387096774193) internal successors, (42), 30 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 18:10:33,947 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 42 transitions. [2021-11-13 18:10:33,947 INFO L704 BuchiCegarLoop]: Abstraction has 31 states and 42 transitions. [2021-11-13 18:10:33,947 INFO L587 BuchiCegarLoop]: Abstraction has 31 states and 42 transitions. [2021-11-13 18:10:33,947 INFO L425 BuchiCegarLoop]: ======== Iteration 5============ [2021-11-13 18:10:33,947 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 31 states and 42 transitions. [2021-11-13 18:10:33,949 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 8 [2021-11-13 18:10:33,951 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-13 18:10:33,951 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-13 18:10:33,951 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 18:10:33,952 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-11-13 18:10:33,952 INFO L791 eck$LassoCheckResult]: Stem: 680#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#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(6);call write~init~int(115, #t~string1.base, #t~string1.offset, 1);call write~init~int(101, #t~string1.base, 1 + #t~string1.offset, 1);call write~init~int(112, #t~string1.base, 2 + #t~string1.offset, 1);call write~init~int(46, #t~string1.base, 3 + #t~string1.offset, 1);call write~init~int(99, #t~string1.base, 4 + #t~string1.offset, 1);call write~init~int(0, #t~string1.base, 5 + #t~string1.offset, 1);~N~0 := 0; 681#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet7#1, main_#t~ret8#1, main_#t~mem9#1, main_#t~mem10#1, main_#t~ret11#1, main_#t~mem12#1, main_#t~mem14#1, main_#t~post13#1, main_~i~1#1, main_#t~ret15#1, main_~#x~0#1.base, main_~#x~0#1.offset, main_~temp~0#1, main_~ret~1#1, main_~ret2~0#1, main_~ret5~0#1;~N~0 := main_#t~nondet7#1;havoc main_#t~nondet7#1; 693#L34 assume ~N~0 > 1;call main_~#x~0#1.base, main_~#x~0#1.offset := #Ultimate.allocOnStack(4 * ~N~0);havoc main_~temp~0#1;havoc main_~ret~1#1;havoc main_~ret2~0#1;havoc main_~ret5~0#1;assume { :begin_inline_sep } true;sep_#in~x#1.base, sep_#in~x#1.offset := main_~#x~0#1.base, main_~#x~0#1.offset;havoc sep_#res#1;havoc sep_#t~mem4#1, sep_#t~post5#1, sep_#t~post6#1, sep_#t~post3#1, sep_~i~0#1, sep_~x#1.base, sep_~x#1.offset, sep_~ret~0#1;sep_~x#1.base, sep_~x#1.offset := sep_#in~x#1.base, sep_#in~x#1.offset;sep_~ret~0#1 := 0;sep_~i~0#1 := 0; 700#L20-3 assume !!(sep_~i~0#1 < ~N~0);call sep_#t~mem4#1 := read~int(sep_~x#1.base, sep_~x#1.offset + 4 * sep_~i~0#1, 4); 701#L22 assume !(0 == (if sep_#t~mem4#1 < 0 && 0 != sep_#t~mem4#1 % 2 then sep_#t~mem4#1 % 2 - 2 else sep_#t~mem4#1 % 2));havoc sep_#t~mem4#1;sep_#t~post6#1 := sep_~ret~0#1;sep_~ret~0#1 := sep_#t~post6#1 - 1;havoc sep_#t~post6#1; 705#L20-2 sep_#t~post3#1 := sep_~i~0#1;sep_~i~0#1 := 1 + sep_#t~post3#1;havoc sep_#t~post3#1; 702#L20-3 assume !!(sep_~i~0#1 < ~N~0);call sep_#t~mem4#1 := read~int(sep_~x#1.base, sep_~x#1.offset + 4 * sep_~i~0#1, 4); 703#L22 assume 0 == (if sep_#t~mem4#1 < 0 && 0 != sep_#t~mem4#1 % 2 then sep_#t~mem4#1 % 2 - 2 else sep_#t~mem4#1 % 2);havoc sep_#t~mem4#1;sep_#t~post5#1 := sep_~ret~0#1;sep_~ret~0#1 := 1 + sep_#t~post5#1;havoc sep_#t~post5#1; 710#L20-2 sep_#t~post3#1 := sep_~i~0#1;sep_~i~0#1 := 1 + sep_#t~post3#1;havoc sep_#t~post3#1; 708#L20-3 assume !(sep_~i~0#1 < ~N~0); 707#L20-4 sep_#res#1 := (if sep_~ret~0#1 % 4294967296 <= 2147483647 then sep_~ret~0#1 % 4294967296 else sep_~ret~0#1 % 4294967296 - 4294967296); 684#L27 main_#t~ret8#1 := sep_#res#1;assume { :end_inline_sep } true;main_~ret~1#1 := main_#t~ret8#1;havoc main_#t~ret8#1;call main_#t~mem9#1 := read~int(main_~#x~0#1.base, main_~#x~0#1.offset, 4);main_~temp~0#1 := main_#t~mem9#1;havoc main_#t~mem9#1;call main_#t~mem10#1 := read~int(main_~#x~0#1.base, 4 + main_~#x~0#1.offset, 4);call write~int(main_#t~mem10#1, main_~#x~0#1.base, main_~#x~0#1.offset, 4);havoc main_#t~mem10#1;call write~int(main_~temp~0#1, main_~#x~0#1.base, 4 + main_~#x~0#1.offset, 4);assume { :begin_inline_sep } true;sep_#in~x#1.base, sep_#in~x#1.offset := main_~#x~0#1.base, main_~#x~0#1.offset;havoc sep_#res#1;havoc sep_#t~mem4#1, sep_#t~post5#1, sep_#t~post6#1, sep_#t~post3#1, sep_~i~0#1, sep_~x#1.base, sep_~x#1.offset, sep_~ret~0#1;sep_~x#1.base, sep_~x#1.offset := sep_#in~x#1.base, sep_#in~x#1.offset;sep_~ret~0#1 := 0;sep_~i~0#1 := 0; 685#L20-8 [2021-11-13 18:10:33,952 INFO L793 eck$LassoCheckResult]: Loop: 685#L20-8 assume !!(sep_~i~0#1 < ~N~0);call sep_#t~mem4#1 := read~int(sep_~x#1.base, sep_~x#1.offset + 4 * sep_~i~0#1, 4); 686#L22-2 assume 0 == (if sep_#t~mem4#1 < 0 && 0 != sep_#t~mem4#1 % 2 then sep_#t~mem4#1 % 2 - 2 else sep_#t~mem4#1 % 2);havoc sep_#t~mem4#1;sep_#t~post5#1 := sep_~ret~0#1;sep_~ret~0#1 := 1 + sep_#t~post5#1;havoc sep_#t~post5#1; 695#L20-7 sep_#t~post3#1 := sep_~i~0#1;sep_~i~0#1 := 1 + sep_#t~post3#1;havoc sep_#t~post3#1; 685#L20-8 [2021-11-13 18:10:33,953 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:10:33,953 INFO L85 PathProgramCache]: Analyzing trace with hash -333395639, now seen corresponding path program 1 times [2021-11-13 18:10:33,953 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 18:10:33,953 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1095272619] [2021-11-13 18:10:33,953 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:10:33,954 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 18:10:33,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-13 18:10:33,989 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-13 18:10:34,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-13 18:10:34,032 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-13 18:10:34,040 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:10:34,040 INFO L85 PathProgramCache]: Analyzing trace with hash 63653, now seen corresponding path program 4 times [2021-11-13 18:10:34,041 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 18:10:34,041 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [314360235] [2021-11-13 18:10:34,041 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:10:34,042 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 18:10:34,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-13 18:10:34,047 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-13 18:10:34,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-13 18:10:34,060 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-13 18:10:34,062 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:10:34,062 INFO L85 PathProgramCache]: Analyzing trace with hash 2069908061, now seen corresponding path program 1 times [2021-11-13 18:10:34,062 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 18:10:34,062 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [306212624] [2021-11-13 18:10:34,062 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:10:34,063 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 18:10:34,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-13 18:10:34,101 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-13 18:10:34,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-13 18:10:34,141 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-13 18:10:35,228 INFO L210 LassoAnalysis]: Preferences: [2021-11-13 18:10:35,229 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-11-13 18:10:35,229 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-11-13 18:10:35,229 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-11-13 18:10:35,229 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-11-13 18:10:35,229 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-13 18:10:35,229 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-11-13 18:10:35,229 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-11-13 18:10:35,229 INFO L133 ssoRankerPreferences]: Filename of dumped script: sep.i_Iteration5_Lasso [2021-11-13 18:10:35,229 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-11-13 18:10:35,229 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-11-13 18:10:35,233 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-13 18:10:35,242 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-13 18:10:35,244 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-13 18:10:35,246 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-13 18:10:35,249 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-13 18:10:35,251 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-13 18:10:35,254 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-13 18:10:35,256 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-13 18:10:35,258 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-13 18:10:35,260 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-13 18:10:35,262 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-13 18:10:35,265 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-13 18:10:35,269 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-13 18:10:35,271 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-13 18:10:35,273 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-13 18:10:35,275 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-13 18:10:35,793 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-13 18:10:35,795 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-13 18:10:35,798 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-13 18:10:35,800 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-13 18:10:35,802 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-13 18:10:35,804 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-13 18:10:35,807 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-13 18:10:36,170 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-11-13 18:10:36,171 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-11-13 18:10:36,171 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-13 18:10:36,171 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3790920e-7321-45ee-9abd-52e221d3c57d/bin/uautomizer-YU5uOKAj3y/z3 [2021-11-13 18:10:36,181 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3790920e-7321-45ee-9abd-52e221d3c57d/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-13 18:10:36,182 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3790920e-7321-45ee-9abd-52e221d3c57d/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Waiting until timeout for monitored process [2021-11-13 18:10:36,182 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-13 18:10:36,190 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-13 18:10:36,190 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-13 18:10:36,190 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-13 18:10:36,190 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-13 18:10:36,190 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-13 18:10:36,190 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-13 18:10:36,191 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-13 18:10:36,191 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-13 18:10:36,214 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3790920e-7321-45ee-9abd-52e221d3c57d/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Forceful destruction successful, exit code 0 [2021-11-13 18:10:36,214 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-13 18:10:36,215 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3790920e-7321-45ee-9abd-52e221d3c57d/bin/uautomizer-YU5uOKAj3y/z3 [2021-11-13 18:10:36,215 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3790920e-7321-45ee-9abd-52e221d3c57d/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-13 18:10:36,219 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3790920e-7321-45ee-9abd-52e221d3c57d/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Waiting until timeout for monitored process [2021-11-13 18:10:36,220 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-13 18:10:36,227 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-13 18:10:36,227 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-13 18:10:36,227 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-13 18:10:36,227 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-13 18:10:36,227 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-13 18:10:36,228 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-13 18:10:36,228 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-13 18:10:36,229 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-13 18:10:36,254 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3790920e-7321-45ee-9abd-52e221d3c57d/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Ended with exit code 0 [2021-11-13 18:10:36,254 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-13 18:10:36,255 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3790920e-7321-45ee-9abd-52e221d3c57d/bin/uautomizer-YU5uOKAj3y/z3 [2021-11-13 18:10:36,256 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3790920e-7321-45ee-9abd-52e221d3c57d/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-13 18:10:36,257 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3790920e-7321-45ee-9abd-52e221d3c57d/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Waiting until timeout for monitored process [2021-11-13 18:10:36,258 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-13 18:10:36,265 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-13 18:10:36,265 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-13 18:10:36,265 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-13 18:10:36,265 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-13 18:10:36,265 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-13 18:10:36,265 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-13 18:10:36,265 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-13 18:10:36,266 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-13 18:10:36,289 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3790920e-7321-45ee-9abd-52e221d3c57d/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Forceful destruction successful, exit code 0 [2021-11-13 18:10:36,289 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-13 18:10:36,289 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3790920e-7321-45ee-9abd-52e221d3c57d/bin/uautomizer-YU5uOKAj3y/z3 [2021-11-13 18:10:36,290 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3790920e-7321-45ee-9abd-52e221d3c57d/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-13 18:10:36,294 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3790920e-7321-45ee-9abd-52e221d3c57d/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Waiting until timeout for monitored process [2021-11-13 18:10:36,295 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-13 18:10:36,302 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-13 18:10:36,302 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-13 18:10:36,302 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-13 18:10:36,302 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-13 18:10:36,303 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-11-13 18:10:36,303 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-11-13 18:10:36,318 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-13 18:10:36,354 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3790920e-7321-45ee-9abd-52e221d3c57d/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Forceful destruction successful, exit code 0 [2021-11-13 18:10:36,355 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-13 18:10:36,355 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3790920e-7321-45ee-9abd-52e221d3c57d/bin/uautomizer-YU5uOKAj3y/z3 [2021-11-13 18:10:36,361 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3790920e-7321-45ee-9abd-52e221d3c57d/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-13 18:10:36,369 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-13 18:10:36,378 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-13 18:10:36,379 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-13 18:10:36,379 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-13 18:10:36,379 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-13 18:10:36,379 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-13 18:10:36,380 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-13 18:10:36,380 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-13 18:10:36,381 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3790920e-7321-45ee-9abd-52e221d3c57d/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Waiting until timeout for monitored process [2021-11-13 18:10:36,389 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-13 18:10:36,414 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3790920e-7321-45ee-9abd-52e221d3c57d/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Forceful destruction successful, exit code 0 [2021-11-13 18:10:36,414 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-13 18:10:36,415 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3790920e-7321-45ee-9abd-52e221d3c57d/bin/uautomizer-YU5uOKAj3y/z3 [2021-11-13 18:10:36,415 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3790920e-7321-45ee-9abd-52e221d3c57d/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-13 18:10:36,416 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3790920e-7321-45ee-9abd-52e221d3c57d/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Waiting until timeout for monitored process [2021-11-13 18:10:36,417 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-13 18:10:36,424 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-13 18:10:36,424 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-13 18:10:36,424 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-13 18:10:36,424 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-13 18:10:36,425 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-11-13 18:10:36,425 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-11-13 18:10:36,428 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-13 18:10:36,448 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3790920e-7321-45ee-9abd-52e221d3c57d/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Forceful destruction successful, exit code 0 [2021-11-13 18:10:36,448 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-13 18:10:36,448 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3790920e-7321-45ee-9abd-52e221d3c57d/bin/uautomizer-YU5uOKAj3y/z3 [2021-11-13 18:10:36,449 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3790920e-7321-45ee-9abd-52e221d3c57d/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-13 18:10:36,450 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-13 18:10:36,453 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3790920e-7321-45ee-9abd-52e221d3c57d/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Waiting until timeout for monitored process [2021-11-13 18:10:36,458 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-13 18:10:36,458 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-13 18:10:36,458 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-13 18:10:36,458 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-13 18:10:36,458 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-13 18:10:36,459 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-13 18:10:36,459 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-13 18:10:36,461 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-13 18:10:36,481 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3790920e-7321-45ee-9abd-52e221d3c57d/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Ended with exit code 0 [2021-11-13 18:10:36,481 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-13 18:10:36,481 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3790920e-7321-45ee-9abd-52e221d3c57d/bin/uautomizer-YU5uOKAj3y/z3 [2021-11-13 18:10:36,482 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3790920e-7321-45ee-9abd-52e221d3c57d/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-13 18:10:36,483 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-13 18:10:36,483 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3790920e-7321-45ee-9abd-52e221d3c57d/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Waiting until timeout for monitored process [2021-11-13 18:10:36,490 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-13 18:10:36,490 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-13 18:10:36,490 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-13 18:10:36,491 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-13 18:10:36,491 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-13 18:10:36,491 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-13 18:10:36,491 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-13 18:10:36,492 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-13 18:10:36,511 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3790920e-7321-45ee-9abd-52e221d3c57d/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Ended with exit code 0 [2021-11-13 18:10:36,512 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-13 18:10:36,512 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3790920e-7321-45ee-9abd-52e221d3c57d/bin/uautomizer-YU5uOKAj3y/z3 [2021-11-13 18:10:36,512 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3790920e-7321-45ee-9abd-52e221d3c57d/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-13 18:10:36,513 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3790920e-7321-45ee-9abd-52e221d3c57d/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Waiting until timeout for monitored process [2021-11-13 18:10:36,514 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-13 18:10:36,521 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-13 18:10:36,522 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-13 18:10:36,522 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-13 18:10:36,522 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-13 18:10:36,522 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-13 18:10:36,522 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-13 18:10:36,522 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-13 18:10:36,523 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-13 18:10:36,543 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3790920e-7321-45ee-9abd-52e221d3c57d/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Ended with exit code 0 [2021-11-13 18:10:36,543 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-13 18:10:36,543 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3790920e-7321-45ee-9abd-52e221d3c57d/bin/uautomizer-YU5uOKAj3y/z3 [2021-11-13 18:10:36,544 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3790920e-7321-45ee-9abd-52e221d3c57d/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-13 18:10:36,545 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3790920e-7321-45ee-9abd-52e221d3c57d/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Waiting until timeout for monitored process [2021-11-13 18:10:36,546 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-13 18:10:36,554 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-13 18:10:36,554 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-13 18:10:36,554 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-13 18:10:36,554 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-13 18:10:36,554 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-13 18:10:36,554 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-13 18:10:36,554 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-13 18:10:36,555 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-13 18:10:36,575 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3790920e-7321-45ee-9abd-52e221d3c57d/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Ended with exit code 0 [2021-11-13 18:10:36,575 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-13 18:10:36,575 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3790920e-7321-45ee-9abd-52e221d3c57d/bin/uautomizer-YU5uOKAj3y/z3 [2021-11-13 18:10:36,576 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3790920e-7321-45ee-9abd-52e221d3c57d/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-13 18:10:36,578 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3790920e-7321-45ee-9abd-52e221d3c57d/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Waiting until timeout for monitored process [2021-11-13 18:10:36,579 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-13 18:10:36,586 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-13 18:10:36,586 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-13 18:10:36,586 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-13 18:10:36,586 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-13 18:10:36,588 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-11-13 18:10:36,588 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-11-13 18:10:36,601 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-13 18:10:36,623 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3790920e-7321-45ee-9abd-52e221d3c57d/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Forceful destruction successful, exit code 0 [2021-11-13 18:10:36,623 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-13 18:10:36,623 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3790920e-7321-45ee-9abd-52e221d3c57d/bin/uautomizer-YU5uOKAj3y/z3 [2021-11-13 18:10:36,623 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3790920e-7321-45ee-9abd-52e221d3c57d/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-13 18:10:36,624 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3790920e-7321-45ee-9abd-52e221d3c57d/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Waiting until timeout for monitored process [2021-11-13 18:10:36,625 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 [2021-11-13 18:10:36,632 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-13 18:10:36,632 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-13 18:10:36,632 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-13 18:10:36,633 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-13 18:10:36,635 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-11-13 18:10:36,636 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-11-13 18:10:36,657 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-13 18:10:36,677 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3790920e-7321-45ee-9abd-52e221d3c57d/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Forceful destruction successful, exit code 0 [2021-11-13 18:10:36,677 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-13 18:10:36,677 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3790920e-7321-45ee-9abd-52e221d3c57d/bin/uautomizer-YU5uOKAj3y/z3 [2021-11-13 18:10:36,678 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3790920e-7321-45ee-9abd-52e221d3c57d/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-13 18:10:36,679 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3790920e-7321-45ee-9abd-52e221d3c57d/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Waiting until timeout for monitored process [2021-11-13 18:10:36,680 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-13 18:10:36,687 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-13 18:10:36,687 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-13 18:10:36,688 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-13 18:10:36,688 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-13 18:10:36,688 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-13 18:10:36,688 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-13 18:10:36,688 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-13 18:10:36,689 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-13 18:10:36,709 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3790920e-7321-45ee-9abd-52e221d3c57d/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Ended with exit code 0 [2021-11-13 18:10:36,712 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-13 18:10:36,712 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3790920e-7321-45ee-9abd-52e221d3c57d/bin/uautomizer-YU5uOKAj3y/z3 [2021-11-13 18:10:36,713 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3790920e-7321-45ee-9abd-52e221d3c57d/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-13 18:10:36,715 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-13 18:10:36,725 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3790920e-7321-45ee-9abd-52e221d3c57d/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Waiting until timeout for monitored process [2021-11-13 18:10:36,725 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-13 18:10:36,725 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-13 18:10:36,725 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-13 18:10:36,725 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-13 18:10:36,726 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-13 18:10:36,726 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-13 18:10:36,726 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-13 18:10:36,745 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-13 18:10:36,781 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3790920e-7321-45ee-9abd-52e221d3c57d/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Forceful destruction successful, exit code 0 [2021-11-13 18:10:36,782 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-13 18:10:36,782 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3790920e-7321-45ee-9abd-52e221d3c57d/bin/uautomizer-YU5uOKAj3y/z3 [2021-11-13 18:10:36,785 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3790920e-7321-45ee-9abd-52e221d3c57d/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-13 18:10:36,789 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-13 18:10:36,798 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-13 18:10:36,799 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-13 18:10:36,799 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-13 18:10:36,799 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-13 18:10:36,799 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-13 18:10:36,799 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-13 18:10:36,800 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-13 18:10:36,801 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3790920e-7321-45ee-9abd-52e221d3c57d/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Waiting until timeout for monitored process [2021-11-13 18:10:36,809 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-13 18:10:36,830 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3790920e-7321-45ee-9abd-52e221d3c57d/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Ended with exit code 0 [2021-11-13 18:10:36,830 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-13 18:10:36,831 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3790920e-7321-45ee-9abd-52e221d3c57d/bin/uautomizer-YU5uOKAj3y/z3 [2021-11-13 18:10:36,833 INFO L229 MonitoredProcess]: Starting monitored process 34 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3790920e-7321-45ee-9abd-52e221d3c57d/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-13 18:10:36,835 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-13 18:10:36,844 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-13 18:10:36,845 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-13 18:10:36,845 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-13 18:10:36,845 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-13 18:10:36,845 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-13 18:10:36,845 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-13 18:10:36,846 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-13 18:10:36,847 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3790920e-7321-45ee-9abd-52e221d3c57d/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Waiting until timeout for monitored process [2021-11-13 18:10:36,857 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-13 18:10:36,897 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3790920e-7321-45ee-9abd-52e221d3c57d/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Forceful destruction successful, exit code 0 [2021-11-13 18:10:36,897 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-13 18:10:36,898 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3790920e-7321-45ee-9abd-52e221d3c57d/bin/uautomizer-YU5uOKAj3y/z3 [2021-11-13 18:10:36,898 INFO L229 MonitoredProcess]: Starting monitored process 35 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3790920e-7321-45ee-9abd-52e221d3c57d/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-13 18:10:36,900 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-13 18:10:36,909 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-13 18:10:36,910 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-13 18:10:36,910 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-13 18:10:36,910 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-13 18:10:36,910 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-13 18:10:36,910 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-13 18:10:36,911 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-13 18:10:36,912 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3790920e-7321-45ee-9abd-52e221d3c57d/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Waiting until timeout for monitored process [2021-11-13 18:10:36,915 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-13 18:10:36,938 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3790920e-7321-45ee-9abd-52e221d3c57d/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Forceful destruction successful, exit code 0 [2021-11-13 18:10:36,938 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-13 18:10:36,938 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3790920e-7321-45ee-9abd-52e221d3c57d/bin/uautomizer-YU5uOKAj3y/z3 [2021-11-13 18:10:36,939 INFO L229 MonitoredProcess]: Starting monitored process 36 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3790920e-7321-45ee-9abd-52e221d3c57d/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-13 18:10:36,941 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-13 18:10:36,942 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3790920e-7321-45ee-9abd-52e221d3c57d/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Waiting until timeout for monitored process [2021-11-13 18:10:36,949 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-13 18:10:36,949 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-13 18:10:36,949 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-13 18:10:36,949 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-13 18:10:36,951 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-11-13 18:10:36,951 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-11-13 18:10:36,955 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-13 18:10:36,975 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3790920e-7321-45ee-9abd-52e221d3c57d/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Ended with exit code 0 [2021-11-13 18:10:36,975 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-13 18:10:36,975 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3790920e-7321-45ee-9abd-52e221d3c57d/bin/uautomizer-YU5uOKAj3y/z3 [2021-11-13 18:10:36,976 INFO L229 MonitoredProcess]: Starting monitored process 37 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3790920e-7321-45ee-9abd-52e221d3c57d/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-13 18:10:36,977 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3790920e-7321-45ee-9abd-52e221d3c57d/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (37)] Waiting until timeout for monitored process [2021-11-13 18:10:36,977 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 [2021-11-13 18:10:36,984 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-13 18:10:36,984 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-13 18:10:36,985 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-13 18:10:36,985 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-13 18:10:36,986 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-11-13 18:10:36,986 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-11-13 18:10:37,013 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-13 18:10:37,046 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3790920e-7321-45ee-9abd-52e221d3c57d/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (37)] Forceful destruction successful, exit code 0 [2021-11-13 18:10:37,046 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-13 18:10:37,046 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3790920e-7321-45ee-9abd-52e221d3c57d/bin/uautomizer-YU5uOKAj3y/z3 [2021-11-13 18:10:37,047 INFO L229 MonitoredProcess]: Starting monitored process 38 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3790920e-7321-45ee-9abd-52e221d3c57d/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-13 18:10:37,054 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-13 18:10:37,063 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-13 18:10:37,063 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-13 18:10:37,063 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-13 18:10:37,063 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-13 18:10:37,065 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-11-13 18:10:37,066 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-11-13 18:10:37,071 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3790920e-7321-45ee-9abd-52e221d3c57d/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (38)] Waiting until timeout for monitored process [2021-11-13 18:10:37,084 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-13 18:10:37,104 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3790920e-7321-45ee-9abd-52e221d3c57d/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (38)] Forceful destruction successful, exit code 0 [2021-11-13 18:10:37,104 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-13 18:10:37,104 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3790920e-7321-45ee-9abd-52e221d3c57d/bin/uautomizer-YU5uOKAj3y/z3 [2021-11-13 18:10:37,106 INFO L229 MonitoredProcess]: Starting monitored process 39 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3790920e-7321-45ee-9abd-52e221d3c57d/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-13 18:10:37,106 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3790920e-7321-45ee-9abd-52e221d3c57d/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (39)] Waiting until timeout for monitored process [2021-11-13 18:10:37,107 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-13 18:10:37,114 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-13 18:10:37,114 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-13 18:10:37,114 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-13 18:10:37,114 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-13 18:10:37,114 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-13 18:10:37,115 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-13 18:10:37,115 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-13 18:10:37,124 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-13 18:10:37,144 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3790920e-7321-45ee-9abd-52e221d3c57d/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (39)] Forceful destruction successful, exit code 0 [2021-11-13 18:10:37,144 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-13 18:10:37,144 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3790920e-7321-45ee-9abd-52e221d3c57d/bin/uautomizer-YU5uOKAj3y/z3 [2021-11-13 18:10:37,146 INFO L229 MonitoredProcess]: Starting monitored process 40 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3790920e-7321-45ee-9abd-52e221d3c57d/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-13 18:10:37,147 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3790920e-7321-45ee-9abd-52e221d3c57d/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (40)] Waiting until timeout for monitored process [2021-11-13 18:10:37,148 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-13 18:10:37,155 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-13 18:10:37,155 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-13 18:10:37,155 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-13 18:10:37,155 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-13 18:10:37,156 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-11-13 18:10:37,156 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-11-13 18:10:37,161 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-13 18:10:37,180 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3790920e-7321-45ee-9abd-52e221d3c57d/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (40)] Forceful destruction successful, exit code 0 [2021-11-13 18:10:37,180 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-13 18:10:37,181 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3790920e-7321-45ee-9abd-52e221d3c57d/bin/uautomizer-YU5uOKAj3y/z3 [2021-11-13 18:10:37,181 INFO L229 MonitoredProcess]: Starting monitored process 41 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3790920e-7321-45ee-9abd-52e221d3c57d/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-13 18:10:37,182 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3790920e-7321-45ee-9abd-52e221d3c57d/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (41)] Waiting until timeout for monitored process [2021-11-13 18:10:37,183 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-13 18:10:37,190 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-13 18:10:37,190 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-13 18:10:37,190 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-13 18:10:37,190 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-13 18:10:37,191 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-11-13 18:10:37,191 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-11-13 18:10:37,193 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-13 18:10:37,216 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3790920e-7321-45ee-9abd-52e221d3c57d/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (41)] Forceful destruction successful, exit code 0 [2021-11-13 18:10:37,217 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-13 18:10:37,217 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3790920e-7321-45ee-9abd-52e221d3c57d/bin/uautomizer-YU5uOKAj3y/z3 [2021-11-13 18:10:37,218 INFO L229 MonitoredProcess]: Starting monitored process 42 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3790920e-7321-45ee-9abd-52e221d3c57d/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-13 18:10:37,225 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3790920e-7321-45ee-9abd-52e221d3c57d/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (42)] Waiting until timeout for monitored process [2021-11-13 18:10:37,226 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-13 18:10:37,233 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-13 18:10:37,233 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-13 18:10:37,233 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-13 18:10:37,233 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-13 18:10:37,237 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-11-13 18:10:37,237 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-11-13 18:10:37,242 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-13 18:10:37,265 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3790920e-7321-45ee-9abd-52e221d3c57d/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (42)] Forceful destruction successful, exit code 0 [2021-11-13 18:10:37,265 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-13 18:10:37,265 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3790920e-7321-45ee-9abd-52e221d3c57d/bin/uautomizer-YU5uOKAj3y/z3 [2021-11-13 18:10:37,266 INFO L229 MonitoredProcess]: Starting monitored process 43 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3790920e-7321-45ee-9abd-52e221d3c57d/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-13 18:10:37,297 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3790920e-7321-45ee-9abd-52e221d3c57d/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (43)] Waiting until timeout for monitored process [2021-11-13 18:10:37,297 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-13 18:10:37,306 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-13 18:10:37,306 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-13 18:10:37,306 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-13 18:10:37,306 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-13 18:10:37,306 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-13 18:10:37,307 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-13 18:10:37,307 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-13 18:10:37,320 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-13 18:10:37,340 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3790920e-7321-45ee-9abd-52e221d3c57d/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (43)] Forceful destruction successful, exit code 0 [2021-11-13 18:10:37,340 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-13 18:10:37,340 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3790920e-7321-45ee-9abd-52e221d3c57d/bin/uautomizer-YU5uOKAj3y/z3 [2021-11-13 18:10:37,341 INFO L229 MonitoredProcess]: Starting monitored process 44 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3790920e-7321-45ee-9abd-52e221d3c57d/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-13 18:10:37,350 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-13 18:10:37,360 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-13 18:10:37,360 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-13 18:10:37,360 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-13 18:10:37,360 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-13 18:10:37,368 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-11-13 18:10:37,369 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-11-13 18:10:37,374 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3790920e-7321-45ee-9abd-52e221d3c57d/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (44)] Waiting until timeout for monitored process [2021-11-13 18:10:37,397 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-11-13 18:10:37,451 INFO L443 ModelExtractionUtils]: Simplification made 17 calls to the SMT solver. [2021-11-13 18:10:37,451 INFO L444 ModelExtractionUtils]: 10 out of 31 variables were initially zero. Simplification set additionally 18 variables to zero. [2021-11-13 18:10:37,451 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-13 18:10:37,452 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3790920e-7321-45ee-9abd-52e221d3c57d/bin/uautomizer-YU5uOKAj3y/z3 [2021-11-13 18:10:37,457 INFO L229 MonitoredProcess]: Starting monitored process 45 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3790920e-7321-45ee-9abd-52e221d3c57d/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-13 18:10:37,458 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-11-13 18:10:37,467 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3790920e-7321-45ee-9abd-52e221d3c57d/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (45)] Waiting until timeout for monitored process [2021-11-13 18:10:37,471 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2021-11-13 18:10:37,472 INFO L513 LassoAnalysis]: Proved termination. [2021-11-13 18:10:37,472 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(~N~0, ULTIMATE.start_sep_~i~0#1) = 1*~N~0 - 1*ULTIMATE.start_sep_~i~0#1 Supporting invariants [] [2021-11-13 18:10:37,493 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3790920e-7321-45ee-9abd-52e221d3c57d/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (44)] Ended with exit code 0 [2021-11-13 18:10:37,656 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3790920e-7321-45ee-9abd-52e221d3c57d/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (45)] Forceful destruction successful, exit code 0 [2021-11-13 18:10:37,689 INFO L297 tatePredicateManager]: 55 out of 55 supporting invariants were superfluous and have been removed [2021-11-13 18:10:37,699 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:10:37,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:10:37,720 INFO L263 TraceCheckSpWp]: Trace formula consists of 112 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-13 18:10:37,721 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 18:10:37,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:10:37,758 INFO L263 TraceCheckSpWp]: Trace formula consists of 15 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-13 18:10:37,758 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 18:10:37,782 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 18:10:37,783 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 [2021-11-13 18:10:37,783 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 31 states and 42 transitions. cyclomatic complexity: 16 Second operand has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 18:10:37,810 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 31 states and 42 transitions. cyclomatic complexity: 16. Second operand has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 40 states and 58 transitions. Complement of second has 7 states. [2021-11-13 18:10:37,810 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 [2021-11-13 18:10:37,813 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 18:10:37,814 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 20 transitions. [2021-11-13 18:10:37,814 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 20 transitions. Stem has 12 letters. Loop has 3 letters. [2021-11-13 18:10:37,814 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-13 18:10:37,814 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 20 transitions. Stem has 15 letters. Loop has 3 letters. [2021-11-13 18:10:37,815 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-13 18:10:37,815 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 20 transitions. Stem has 12 letters. Loop has 6 letters. [2021-11-13 18:10:37,815 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-13 18:10:37,816 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 40 states and 58 transitions. [2021-11-13 18:10:37,820 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 5 [2021-11-13 18:10:37,825 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 40 states to 32 states and 44 transitions. [2021-11-13 18:10:37,825 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 17 [2021-11-13 18:10:37,825 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 18 [2021-11-13 18:10:37,825 INFO L73 IsDeterministic]: Start isDeterministic. Operand 32 states and 44 transitions. [2021-11-13 18:10:37,826 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-13 18:10:37,826 INFO L681 BuchiCegarLoop]: Abstraction has 32 states and 44 transitions. [2021-11-13 18:10:37,826 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states and 44 transitions. [2021-11-13 18:10:37,833 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 32. [2021-11-13 18:10:37,836 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32 states, 32 states have (on average 1.375) internal successors, (44), 31 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 18:10:37,837 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 44 transitions. [2021-11-13 18:10:37,839 INFO L704 BuchiCegarLoop]: Abstraction has 32 states and 44 transitions. [2021-11-13 18:10:37,839 INFO L587 BuchiCegarLoop]: Abstraction has 32 states and 44 transitions. [2021-11-13 18:10:37,839 INFO L425 BuchiCegarLoop]: ======== Iteration 6============ [2021-11-13 18:10:37,839 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 32 states and 44 transitions. [2021-11-13 18:10:37,840 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 5 [2021-11-13 18:10:37,840 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-13 18:10:37,840 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-13 18:10:37,841 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 18:10:37,841 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-11-13 18:10:37,849 INFO L791 eck$LassoCheckResult]: Stem: 1040#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#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(6);call write~init~int(115, #t~string1.base, #t~string1.offset, 1);call write~init~int(101, #t~string1.base, 1 + #t~string1.offset, 1);call write~init~int(112, #t~string1.base, 2 + #t~string1.offset, 1);call write~init~int(46, #t~string1.base, 3 + #t~string1.offset, 1);call write~init~int(99, #t~string1.base, 4 + #t~string1.offset, 1);call write~init~int(0, #t~string1.base, 5 + #t~string1.offset, 1);~N~0 := 0; 1041#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet7#1, main_#t~ret8#1, main_#t~mem9#1, main_#t~mem10#1, main_#t~ret11#1, main_#t~mem12#1, main_#t~mem14#1, main_#t~post13#1, main_~i~1#1, main_#t~ret15#1, main_~#x~0#1.base, main_~#x~0#1.offset, main_~temp~0#1, main_~ret~1#1, main_~ret2~0#1, main_~ret5~0#1;~N~0 := main_#t~nondet7#1;havoc main_#t~nondet7#1; 1055#L34 assume ~N~0 > 1;call main_~#x~0#1.base, main_~#x~0#1.offset := #Ultimate.allocOnStack(4 * ~N~0);havoc main_~temp~0#1;havoc main_~ret~1#1;havoc main_~ret2~0#1;havoc main_~ret5~0#1;assume { :begin_inline_sep } true;sep_#in~x#1.base, sep_#in~x#1.offset := main_~#x~0#1.base, main_~#x~0#1.offset;havoc sep_#res#1;havoc sep_#t~mem4#1, sep_#t~post5#1, sep_#t~post6#1, sep_#t~post3#1, sep_~i~0#1, sep_~x#1.base, sep_~x#1.offset, sep_~ret~0#1;sep_~x#1.base, sep_~x#1.offset := sep_#in~x#1.base, sep_#in~x#1.offset;sep_~ret~0#1 := 0;sep_~i~0#1 := 0; 1060#L20-3 assume !!(sep_~i~0#1 < ~N~0);call sep_#t~mem4#1 := read~int(sep_~x#1.base, sep_~x#1.offset + 4 * sep_~i~0#1, 4); 1058#L22 assume !(0 == (if sep_#t~mem4#1 < 0 && 0 != sep_#t~mem4#1 % 2 then sep_#t~mem4#1 % 2 - 2 else sep_#t~mem4#1 % 2));havoc sep_#t~mem4#1;sep_#t~post6#1 := sep_~ret~0#1;sep_~ret~0#1 := sep_#t~post6#1 - 1;havoc sep_#t~post6#1; 1059#L20-2 sep_#t~post3#1 := sep_~i~0#1;sep_~i~0#1 := 1 + sep_#t~post3#1;havoc sep_#t~post3#1; 1061#L20-3 assume !!(sep_~i~0#1 < ~N~0);call sep_#t~mem4#1 := read~int(sep_~x#1.base, sep_~x#1.offset + 4 * sep_~i~0#1, 4); 1062#L22 assume 0 == (if sep_#t~mem4#1 < 0 && 0 != sep_#t~mem4#1 % 2 then sep_#t~mem4#1 % 2 - 2 else sep_#t~mem4#1 % 2);havoc sep_#t~mem4#1;sep_#t~post5#1 := sep_~ret~0#1;sep_~ret~0#1 := 1 + sep_#t~post5#1;havoc sep_#t~post5#1; 1070#L20-2 sep_#t~post3#1 := sep_~i~0#1;sep_~i~0#1 := 1 + sep_#t~post3#1;havoc sep_#t~post3#1; 1066#L20-3 assume !(sep_~i~0#1 < ~N~0); 1065#L20-4 sep_#res#1 := (if sep_~ret~0#1 % 4294967296 <= 2147483647 then sep_~ret~0#1 % 4294967296 else sep_~ret~0#1 % 4294967296 - 4294967296); 1064#L27 main_#t~ret8#1 := sep_#res#1;assume { :end_inline_sep } true;main_~ret~1#1 := main_#t~ret8#1;havoc main_#t~ret8#1;call main_#t~mem9#1 := read~int(main_~#x~0#1.base, main_~#x~0#1.offset, 4);main_~temp~0#1 := main_#t~mem9#1;havoc main_#t~mem9#1;call main_#t~mem10#1 := read~int(main_~#x~0#1.base, 4 + main_~#x~0#1.offset, 4);call write~int(main_#t~mem10#1, main_~#x~0#1.base, main_~#x~0#1.offset, 4);havoc main_#t~mem10#1;call write~int(main_~temp~0#1, main_~#x~0#1.base, 4 + main_~#x~0#1.offset, 4);assume { :begin_inline_sep } true;sep_#in~x#1.base, sep_#in~x#1.offset := main_~#x~0#1.base, main_~#x~0#1.offset;havoc sep_#res#1;havoc sep_#t~mem4#1, sep_#t~post5#1, sep_#t~post6#1, sep_#t~post3#1, sep_~i~0#1, sep_~x#1.base, sep_~x#1.offset, sep_~ret~0#1;sep_~x#1.base, sep_~x#1.offset := sep_#in~x#1.base, sep_#in~x#1.offset;sep_~ret~0#1 := 0;sep_~i~0#1 := 0; 1063#L20-8 assume !(sep_~i~0#1 < ~N~0); 1042#L20-9 sep_#res#1 := (if sep_~ret~0#1 % 4294967296 <= 2147483647 then sep_~ret~0#1 % 4294967296 else sep_~ret~0#1 % 4294967296 - 4294967296); 1043#L27-1 main_#t~ret11#1 := sep_#res#1;assume { :end_inline_sep } true;main_~ret2~0#1 := main_#t~ret11#1;havoc main_#t~ret11#1;call main_#t~mem12#1 := read~int(main_~#x~0#1.base, main_~#x~0#1.offset, 4);main_~temp~0#1 := main_#t~mem12#1;havoc main_#t~mem12#1;main_~i~1#1 := 0; 1050#L46-3 [2021-11-13 18:10:37,849 INFO L793 eck$LassoCheckResult]: Loop: 1050#L46-3 assume !!(main_~i~1#1 < ~N~0 - 1);call main_#t~mem14#1 := read~int(main_~#x~0#1.base, main_~#x~0#1.offset + 4 * (1 + main_~i~1#1), 4);call write~int(main_#t~mem14#1, main_~#x~0#1.base, main_~#x~0#1.offset + 4 * main_~i~1#1, 4);havoc main_#t~mem14#1; 1049#L46-2 main_#t~post13#1 := main_~i~1#1;main_~i~1#1 := 1 + main_#t~post13#1;havoc main_#t~post13#1; 1050#L46-3 [2021-11-13 18:10:37,850 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:10:37,850 INFO L85 PathProgramCache]: Analyzing trace with hash 2069906393, now seen corresponding path program 1 times [2021-11-13 18:10:37,850 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 18:10:37,851 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [864945786] [2021-11-13 18:10:37,851 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:10:37,851 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 18:10:37,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:10:37,888 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-11-13 18:10:37,888 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 18:10:37,889 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [864945786] [2021-11-13 18:10:37,889 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [864945786] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 18:10:37,889 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 18:10:37,889 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-13 18:10:37,890 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1347021647] [2021-11-13 18:10:37,890 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 18:10:37,890 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-11-13 18:10:37,891 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:10:37,891 INFO L85 PathProgramCache]: Analyzing trace with hash 2723, now seen corresponding path program 1 times [2021-11-13 18:10:37,891 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 18:10:37,891 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1716586163] [2021-11-13 18:10:37,891 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:10:37,891 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 18:10:37,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-13 18:10:37,896 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-13 18:10:37,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-13 18:10:37,902 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-13 18:10:37,967 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 18:10:37,967 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-13 18:10:37,968 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-13 18:10:37,968 INFO L87 Difference]: Start difference. First operand 32 states and 44 transitions. cyclomatic complexity: 17 Second operand has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 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) [2021-11-13 18:10:37,997 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 18:10:37,997 INFO L93 Difference]: Finished difference Result 37 states and 49 transitions. [2021-11-13 18:10:37,998 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-13 18:10:37,998 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 37 states and 49 transitions. [2021-11-13 18:10:38,000 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 5 [2021-11-13 18:10:38,001 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 37 states to 37 states and 49 transitions. [2021-11-13 18:10:38,001 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 21 [2021-11-13 18:10:38,001 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 21 [2021-11-13 18:10:38,001 INFO L73 IsDeterministic]: Start isDeterministic. Operand 37 states and 49 transitions. [2021-11-13 18:10:38,001 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-13 18:10:38,001 INFO L681 BuchiCegarLoop]: Abstraction has 37 states and 49 transitions. [2021-11-13 18:10:38,002 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states and 49 transitions. [2021-11-13 18:10:38,003 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 32. [2021-11-13 18:10:38,003 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32 states, 32 states have (on average 1.3125) internal successors, (42), 31 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 18:10:38,003 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 42 transitions. [2021-11-13 18:10:38,003 INFO L704 BuchiCegarLoop]: Abstraction has 32 states and 42 transitions. [2021-11-13 18:10:38,003 INFO L587 BuchiCegarLoop]: Abstraction has 32 states and 42 transitions. [2021-11-13 18:10:38,003 INFO L425 BuchiCegarLoop]: ======== Iteration 7============ [2021-11-13 18:10:38,004 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 32 states and 42 transitions. [2021-11-13 18:10:38,004 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 5 [2021-11-13 18:10:38,004 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-13 18:10:38,004 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-13 18:10:38,004 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 18:10:38,004 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-11-13 18:10:38,005 INFO L791 eck$LassoCheckResult]: Stem: 1118#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#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(6);call write~init~int(115, #t~string1.base, #t~string1.offset, 1);call write~init~int(101, #t~string1.base, 1 + #t~string1.offset, 1);call write~init~int(112, #t~string1.base, 2 + #t~string1.offset, 1);call write~init~int(46, #t~string1.base, 3 + #t~string1.offset, 1);call write~init~int(99, #t~string1.base, 4 + #t~string1.offset, 1);call write~init~int(0, #t~string1.base, 5 + #t~string1.offset, 1);~N~0 := 0; 1119#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet7#1, main_#t~ret8#1, main_#t~mem9#1, main_#t~mem10#1, main_#t~ret11#1, main_#t~mem12#1, main_#t~mem14#1, main_#t~post13#1, main_~i~1#1, main_#t~ret15#1, main_~#x~0#1.base, main_~#x~0#1.offset, main_~temp~0#1, main_~ret~1#1, main_~ret2~0#1, main_~ret5~0#1;~N~0 := main_#t~nondet7#1;havoc main_#t~nondet7#1; 1132#L34 assume ~N~0 > 1;call main_~#x~0#1.base, main_~#x~0#1.offset := #Ultimate.allocOnStack(4 * ~N~0);havoc main_~temp~0#1;havoc main_~ret~1#1;havoc main_~ret2~0#1;havoc main_~ret5~0#1;assume { :begin_inline_sep } true;sep_#in~x#1.base, sep_#in~x#1.offset := main_~#x~0#1.base, main_~#x~0#1.offset;havoc sep_#res#1;havoc sep_#t~mem4#1, sep_#t~post5#1, sep_#t~post6#1, sep_#t~post3#1, sep_~i~0#1, sep_~x#1.base, sep_~x#1.offset, sep_~ret~0#1;sep_~x#1.base, sep_~x#1.offset := sep_#in~x#1.base, sep_#in~x#1.offset;sep_~ret~0#1 := 0;sep_~i~0#1 := 0; 1136#L20-3 assume !!(sep_~i~0#1 < ~N~0);call sep_#t~mem4#1 := read~int(sep_~x#1.base, sep_~x#1.offset + 4 * sep_~i~0#1, 4); 1138#L22 assume !(0 == (if sep_#t~mem4#1 < 0 && 0 != sep_#t~mem4#1 % 2 then sep_#t~mem4#1 % 2 - 2 else sep_#t~mem4#1 % 2));havoc sep_#t~mem4#1;sep_#t~post6#1 := sep_~ret~0#1;sep_~ret~0#1 := sep_#t~post6#1 - 1;havoc sep_#t~post6#1; 1143#L20-2 sep_#t~post3#1 := sep_~i~0#1;sep_~i~0#1 := 1 + sep_#t~post3#1;havoc sep_#t~post3#1; 1139#L20-3 assume !!(sep_~i~0#1 < ~N~0);call sep_#t~mem4#1 := read~int(sep_~x#1.base, sep_~x#1.offset + 4 * sep_~i~0#1, 4); 1140#L22 assume 0 == (if sep_#t~mem4#1 < 0 && 0 != sep_#t~mem4#1 % 2 then sep_#t~mem4#1 % 2 - 2 else sep_#t~mem4#1 % 2);havoc sep_#t~mem4#1;sep_#t~post5#1 := sep_~ret~0#1;sep_~ret~0#1 := 1 + sep_#t~post5#1;havoc sep_#t~post5#1; 1135#L20-2 sep_#t~post3#1 := sep_~i~0#1;sep_~i~0#1 := 1 + sep_#t~post3#1;havoc sep_#t~post3#1; 1137#L20-3 assume !(sep_~i~0#1 < ~N~0); 1133#L20-4 sep_#res#1 := (if sep_~ret~0#1 % 4294967296 <= 2147483647 then sep_~ret~0#1 % 4294967296 else sep_~ret~0#1 % 4294967296 - 4294967296); 1120#L27 main_#t~ret8#1 := sep_#res#1;assume { :end_inline_sep } true;main_~ret~1#1 := main_#t~ret8#1;havoc main_#t~ret8#1;call main_#t~mem9#1 := read~int(main_~#x~0#1.base, main_~#x~0#1.offset, 4);main_~temp~0#1 := main_#t~mem9#1;havoc main_#t~mem9#1;call main_#t~mem10#1 := read~int(main_~#x~0#1.base, 4 + main_~#x~0#1.offset, 4);call write~int(main_#t~mem10#1, main_~#x~0#1.base, main_~#x~0#1.offset, 4);havoc main_#t~mem10#1;call write~int(main_~temp~0#1, main_~#x~0#1.base, 4 + main_~#x~0#1.offset, 4);assume { :begin_inline_sep } true;sep_#in~x#1.base, sep_#in~x#1.offset := main_~#x~0#1.base, main_~#x~0#1.offset;havoc sep_#res#1;havoc sep_#t~mem4#1, sep_#t~post5#1, sep_#t~post6#1, sep_#t~post3#1, sep_~i~0#1, sep_~x#1.base, sep_~x#1.offset, sep_~ret~0#1;sep_~x#1.base, sep_~x#1.offset := sep_#in~x#1.base, sep_#in~x#1.offset;sep_~ret~0#1 := 0;sep_~i~0#1 := 0; 1121#L20-8 assume !!(sep_~i~0#1 < ~N~0);call sep_#t~mem4#1 := read~int(sep_~x#1.base, sep_~x#1.offset + 4 * sep_~i~0#1, 4); 1122#L22-2 assume !(0 == (if sep_#t~mem4#1 < 0 && 0 != sep_#t~mem4#1 % 2 then sep_#t~mem4#1 % 2 - 2 else sep_#t~mem4#1 % 2));havoc sep_#t~mem4#1;sep_#t~post6#1 := sep_~ret~0#1;sep_~ret~0#1 := sep_#t~post6#1 - 1;havoc sep_#t~post6#1; 1131#L20-7 sep_#t~post3#1 := sep_~i~0#1;sep_~i~0#1 := 1 + sep_#t~post3#1;havoc sep_#t~post3#1; 1123#L20-8 assume !(sep_~i~0#1 < ~N~0); 1116#L20-9 sep_#res#1 := (if sep_~ret~0#1 % 4294967296 <= 2147483647 then sep_~ret~0#1 % 4294967296 else sep_~ret~0#1 % 4294967296 - 4294967296); 1117#L27-1 main_#t~ret11#1 := sep_#res#1;assume { :end_inline_sep } true;main_~ret2~0#1 := main_#t~ret11#1;havoc main_#t~ret11#1;call main_#t~mem12#1 := read~int(main_~#x~0#1.base, main_~#x~0#1.offset, 4);main_~temp~0#1 := main_#t~mem12#1;havoc main_#t~mem12#1;main_~i~1#1 := 0; 1125#L46-3 [2021-11-13 18:10:38,005 INFO L793 eck$LassoCheckResult]: Loop: 1125#L46-3 assume !!(main_~i~1#1 < ~N~0 - 1);call main_#t~mem14#1 := read~int(main_~#x~0#1.base, main_~#x~0#1.offset + 4 * (1 + main_~i~1#1), 4);call write~int(main_#t~mem14#1, main_~#x~0#1.base, main_~#x~0#1.offset + 4 * main_~i~1#1, 4);havoc main_#t~mem14#1; 1124#L46-2 main_#t~post13#1 := main_~i~1#1;main_~i~1#1 := 1 + main_#t~post13#1;havoc main_#t~post13#1; 1125#L46-3 [2021-11-13 18:10:38,005 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:10:38,005 INFO L85 PathProgramCache]: Analyzing trace with hash 1787455815, now seen corresponding path program 1 times [2021-11-13 18:10:38,005 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 18:10:38,005 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [305433810] [2021-11-13 18:10:38,005 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:10:38,005 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 18:10:38,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:10:38,042 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-11-13 18:10:38,042 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 18:10:38,042 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [305433810] [2021-11-13 18:10:38,043 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [305433810] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-13 18:10:38,043 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1304520966] [2021-11-13 18:10:38,043 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:10:38,043 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-13 18:10:38,043 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3790920e-7321-45ee-9abd-52e221d3c57d/bin/uautomizer-YU5uOKAj3y/z3 [2021-11-13 18:10:38,045 INFO L229 MonitoredProcess]: Starting monitored process 46 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3790920e-7321-45ee-9abd-52e221d3c57d/bin/uautomizer-YU5uOKAj3y/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-13 18:10:38,061 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3790920e-7321-45ee-9abd-52e221d3c57d/bin/uautomizer-YU5uOKAj3y/z3 -smt2 -in SMTLIB2_COMPLIANT=true (46)] Waiting until timeout for monitored process [2021-11-13 18:10:38,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:10:38,111 INFO L263 TraceCheckSpWp]: Trace formula consists of 137 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-13 18:10:38,112 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 18:10:38,193 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-11-13 18:10:38,193 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 18:10:38,244 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-11-13 18:10:38,245 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1304520966] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-13 18:10:38,245 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-13 18:10:38,245 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 8 [2021-11-13 18:10:38,245 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1571682601] [2021-11-13 18:10:38,246 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-13 18:10:38,247 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-11-13 18:10:38,247 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:10:38,247 INFO L85 PathProgramCache]: Analyzing trace with hash 2723, now seen corresponding path program 2 times [2021-11-13 18:10:38,247 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 18:10:38,247 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1080343475] [2021-11-13 18:10:38,248 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:10:38,248 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 18:10:38,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-13 18:10:38,252 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-13 18:10:38,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-13 18:10:38,258 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-13 18:10:38,317 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 18:10:38,317 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-13 18:10:38,318 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=31, Unknown=0, NotChecked=0, Total=56 [2021-11-13 18:10:38,318 INFO L87 Difference]: Start difference. First operand 32 states and 42 transitions. cyclomatic complexity: 15 Second operand has 8 states, 8 states have (on average 3.125) internal successors, (25), 8 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) [2021-11-13 18:10:38,393 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 18:10:38,393 INFO L93 Difference]: Finished difference Result 45 states and 59 transitions. [2021-11-13 18:10:38,394 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-13 18:10:38,395 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 45 states and 59 transitions. [2021-11-13 18:10:38,395 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 5 [2021-11-13 18:10:38,396 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 45 states to 45 states and 59 transitions. [2021-11-13 18:10:38,396 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 24 [2021-11-13 18:10:38,396 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 24 [2021-11-13 18:10:38,397 INFO L73 IsDeterministic]: Start isDeterministic. Operand 45 states and 59 transitions. [2021-11-13 18:10:38,397 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-13 18:10:38,397 INFO L681 BuchiCegarLoop]: Abstraction has 45 states and 59 transitions. [2021-11-13 18:10:38,397 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states and 59 transitions. [2021-11-13 18:10:38,403 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 35. [2021-11-13 18:10:38,403 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35 states, 35 states have (on average 1.3142857142857143) internal successors, (46), 34 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 18:10:38,404 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 46 transitions. [2021-11-13 18:10:38,404 INFO L704 BuchiCegarLoop]: Abstraction has 35 states and 46 transitions. [2021-11-13 18:10:38,404 INFO L587 BuchiCegarLoop]: Abstraction has 35 states and 46 transitions. [2021-11-13 18:10:38,404 INFO L425 BuchiCegarLoop]: ======== Iteration 8============ [2021-11-13 18:10:38,404 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 35 states and 46 transitions. [2021-11-13 18:10:38,405 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 5 [2021-11-13 18:10:38,405 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-13 18:10:38,405 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-13 18:10:38,406 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 18:10:38,406 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-11-13 18:10:38,406 INFO L791 eck$LassoCheckResult]: Stem: 1310#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#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(6);call write~init~int(115, #t~string1.base, #t~string1.offset, 1);call write~init~int(101, #t~string1.base, 1 + #t~string1.offset, 1);call write~init~int(112, #t~string1.base, 2 + #t~string1.offset, 1);call write~init~int(46, #t~string1.base, 3 + #t~string1.offset, 1);call write~init~int(99, #t~string1.base, 4 + #t~string1.offset, 1);call write~init~int(0, #t~string1.base, 5 + #t~string1.offset, 1);~N~0 := 0; 1311#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet7#1, main_#t~ret8#1, main_#t~mem9#1, main_#t~mem10#1, main_#t~ret11#1, main_#t~mem12#1, main_#t~mem14#1, main_#t~post13#1, main_~i~1#1, main_#t~ret15#1, main_~#x~0#1.base, main_~#x~0#1.offset, main_~temp~0#1, main_~ret~1#1, main_~ret2~0#1, main_~ret5~0#1;~N~0 := main_#t~nondet7#1;havoc main_#t~nondet7#1; 1325#L34 assume ~N~0 > 1;call main_~#x~0#1.base, main_~#x~0#1.offset := #Ultimate.allocOnStack(4 * ~N~0);havoc main_~temp~0#1;havoc main_~ret~1#1;havoc main_~ret2~0#1;havoc main_~ret5~0#1;assume { :begin_inline_sep } true;sep_#in~x#1.base, sep_#in~x#1.offset := main_~#x~0#1.base, main_~#x~0#1.offset;havoc sep_#res#1;havoc sep_#t~mem4#1, sep_#t~post5#1, sep_#t~post6#1, sep_#t~post3#1, sep_~i~0#1, sep_~x#1.base, sep_~x#1.offset, sep_~ret~0#1;sep_~x#1.base, sep_~x#1.offset := sep_#in~x#1.base, sep_#in~x#1.offset;sep_~ret~0#1 := 0;sep_~i~0#1 := 0; 1329#L20-3 assume !!(sep_~i~0#1 < ~N~0);call sep_#t~mem4#1 := read~int(sep_~x#1.base, sep_~x#1.offset + 4 * sep_~i~0#1, 4); 1331#L22 assume !(0 == (if sep_#t~mem4#1 < 0 && 0 != sep_#t~mem4#1 % 2 then sep_#t~mem4#1 % 2 - 2 else sep_#t~mem4#1 % 2));havoc sep_#t~mem4#1;sep_#t~post6#1 := sep_~ret~0#1;sep_~ret~0#1 := sep_#t~post6#1 - 1;havoc sep_#t~post6#1; 1342#L20-2 sep_#t~post3#1 := sep_~i~0#1;sep_~i~0#1 := 1 + sep_#t~post3#1;havoc sep_#t~post3#1; 1341#L20-3 assume !!(sep_~i~0#1 < ~N~0);call sep_#t~mem4#1 := read~int(sep_~x#1.base, sep_~x#1.offset + 4 * sep_~i~0#1, 4); 1340#L22 assume 0 == (if sep_#t~mem4#1 < 0 && 0 != sep_#t~mem4#1 % 2 then sep_#t~mem4#1 % 2 - 2 else sep_#t~mem4#1 % 2);havoc sep_#t~mem4#1;sep_#t~post5#1 := sep_~ret~0#1;sep_~ret~0#1 := 1 + sep_#t~post5#1;havoc sep_#t~post5#1; 1328#L20-2 sep_#t~post3#1 := sep_~i~0#1;sep_~i~0#1 := 1 + sep_#t~post3#1;havoc sep_#t~post3#1; 1330#L20-3 assume !(sep_~i~0#1 < ~N~0); 1326#L20-4 sep_#res#1 := (if sep_~ret~0#1 % 4294967296 <= 2147483647 then sep_~ret~0#1 % 4294967296 else sep_~ret~0#1 % 4294967296 - 4294967296); 1312#L27 main_#t~ret8#1 := sep_#res#1;assume { :end_inline_sep } true;main_~ret~1#1 := main_#t~ret8#1;havoc main_#t~ret8#1;call main_#t~mem9#1 := read~int(main_~#x~0#1.base, main_~#x~0#1.offset, 4);main_~temp~0#1 := main_#t~mem9#1;havoc main_#t~mem9#1;call main_#t~mem10#1 := read~int(main_~#x~0#1.base, 4 + main_~#x~0#1.offset, 4);call write~int(main_#t~mem10#1, main_~#x~0#1.base, main_~#x~0#1.offset, 4);havoc main_#t~mem10#1;call write~int(main_~temp~0#1, main_~#x~0#1.base, 4 + main_~#x~0#1.offset, 4);assume { :begin_inline_sep } true;sep_#in~x#1.base, sep_#in~x#1.offset := main_~#x~0#1.base, main_~#x~0#1.offset;havoc sep_#res#1;havoc sep_#t~mem4#1, sep_#t~post5#1, sep_#t~post6#1, sep_#t~post3#1, sep_~i~0#1, sep_~x#1.base, sep_~x#1.offset, sep_~ret~0#1;sep_~x#1.base, sep_~x#1.offset := sep_#in~x#1.base, sep_#in~x#1.offset;sep_~ret~0#1 := 0;sep_~i~0#1 := 0; 1313#L20-8 assume !!(sep_~i~0#1 < ~N~0);call sep_#t~mem4#1 := read~int(sep_~x#1.base, sep_~x#1.offset + 4 * sep_~i~0#1, 4); 1334#L22-2 assume !(0 == (if sep_#t~mem4#1 < 0 && 0 != sep_#t~mem4#1 % 2 then sep_#t~mem4#1 % 2 - 2 else sep_#t~mem4#1 % 2));havoc sep_#t~mem4#1;sep_#t~post6#1 := sep_~ret~0#1;sep_~ret~0#1 := sep_#t~post6#1 - 1;havoc sep_#t~post6#1; 1332#L20-7 sep_#t~post3#1 := sep_~i~0#1;sep_~i~0#1 := 1 + sep_#t~post3#1;havoc sep_#t~post3#1; 1316#L20-8 assume !!(sep_~i~0#1 < ~N~0);call sep_#t~mem4#1 := read~int(sep_~x#1.base, sep_~x#1.offset + 4 * sep_~i~0#1, 4); 1317#L22-2 assume !(0 == (if sep_#t~mem4#1 < 0 && 0 != sep_#t~mem4#1 % 2 then sep_#t~mem4#1 % 2 - 2 else sep_#t~mem4#1 % 2));havoc sep_#t~mem4#1;sep_#t~post6#1 := sep_~ret~0#1;sep_~ret~0#1 := sep_#t~post6#1 - 1;havoc sep_#t~post6#1; 1324#L20-7 sep_#t~post3#1 := sep_~i~0#1;sep_~i~0#1 := 1 + sep_#t~post3#1;havoc sep_#t~post3#1; 1333#L20-8 assume !(sep_~i~0#1 < ~N~0); 1308#L20-9 sep_#res#1 := (if sep_~ret~0#1 % 4294967296 <= 2147483647 then sep_~ret~0#1 % 4294967296 else sep_~ret~0#1 % 4294967296 - 4294967296); 1309#L27-1 main_#t~ret11#1 := sep_#res#1;assume { :end_inline_sep } true;main_~ret2~0#1 := main_#t~ret11#1;havoc main_#t~ret11#1;call main_#t~mem12#1 := read~int(main_~#x~0#1.base, main_~#x~0#1.offset, 4);main_~temp~0#1 := main_#t~mem12#1;havoc main_#t~mem12#1;main_~i~1#1 := 0; 1319#L46-3 [2021-11-13 18:10:38,406 INFO L793 eck$LassoCheckResult]: Loop: 1319#L46-3 assume !!(main_~i~1#1 < ~N~0 - 1);call main_#t~mem14#1 := read~int(main_~#x~0#1.base, main_~#x~0#1.offset + 4 * (1 + main_~i~1#1), 4);call write~int(main_#t~mem14#1, main_~#x~0#1.base, main_~#x~0#1.offset + 4 * main_~i~1#1, 4);havoc main_#t~mem14#1; 1318#L46-2 main_#t~post13#1 := main_~i~1#1;main_~i~1#1 := 1 + main_#t~post13#1;havoc main_#t~post13#1; 1319#L46-3 [2021-11-13 18:10:38,407 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:10:38,407 INFO L85 PathProgramCache]: Analyzing trace with hash 1143219481, now seen corresponding path program 2 times [2021-11-13 18:10:38,407 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 18:10:38,407 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [638441326] [2021-11-13 18:10:38,407 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:10:38,408 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 18:10:38,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:10:38,679 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 3 proven. 5 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-13 18:10:38,679 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 18:10:38,680 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [638441326] [2021-11-13 18:10:38,680 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [638441326] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-13 18:10:38,680 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1903518095] [2021-11-13 18:10:38,680 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-13 18:10:38,680 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-13 18:10:38,681 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3790920e-7321-45ee-9abd-52e221d3c57d/bin/uautomizer-YU5uOKAj3y/z3 [2021-11-13 18:10:38,681 INFO L229 MonitoredProcess]: Starting monitored process 47 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3790920e-7321-45ee-9abd-52e221d3c57d/bin/uautomizer-YU5uOKAj3y/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-13 18:10:38,699 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3790920e-7321-45ee-9abd-52e221d3c57d/bin/uautomizer-YU5uOKAj3y/z3 -smt2 -in SMTLIB2_COMPLIANT=true (47)] Waiting until timeout for monitored process [2021-11-13 18:10:38,743 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-11-13 18:10:38,744 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-13 18:10:38,745 INFO L263 TraceCheckSpWp]: Trace formula consists of 149 conjuncts, 32 conjunts are in the unsatisfiable core [2021-11-13 18:10:38,747 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 18:10:38,927 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 22 [2021-11-13 18:10:38,972 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 11 [2021-11-13 18:10:39,019 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 3 proven. 5 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-13 18:10:39,020 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 18:10:39,174 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 18:10:39,174 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 58 treesize of output 56 [2021-11-13 18:10:39,197 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 28 [2021-11-13 18:10:39,233 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 18:10:39,233 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 53 treesize of output 53 [2021-11-13 18:10:39,311 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 3 proven. 5 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-13 18:10:39,312 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1903518095] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-13 18:10:39,312 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-13 18:10:39,312 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 16 [2021-11-13 18:10:39,312 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [394484715] [2021-11-13 18:10:39,312 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-13 18:10:39,313 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-11-13 18:10:39,313 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:10:39,314 INFO L85 PathProgramCache]: Analyzing trace with hash 2723, now seen corresponding path program 3 times [2021-11-13 18:10:39,314 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 18:10:39,314 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [370151498] [2021-11-13 18:10:39,314 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:10:39,314 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 18:10:39,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-13 18:10:39,317 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-13 18:10:39,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-13 18:10:39,320 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-13 18:10:39,380 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 18:10:39,381 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2021-11-13 18:10:39,381 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=197, Unknown=0, NotChecked=0, Total=240 [2021-11-13 18:10:39,381 INFO L87 Difference]: Start difference. First operand 35 states and 46 transitions. cyclomatic complexity: 16 Second operand has 16 states, 16 states have (on average 2.25) internal successors, (36), 16 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 18:10:39,662 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 18:10:39,662 INFO L93 Difference]: Finished difference Result 50 states and 64 transitions. [2021-11-13 18:10:39,662 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-11-13 18:10:39,663 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 50 states and 64 transitions. [2021-11-13 18:10:39,664 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 5 [2021-11-13 18:10:39,664 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 50 states to 50 states and 64 transitions. [2021-11-13 18:10:39,665 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 24 [2021-11-13 18:10:39,665 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 24 [2021-11-13 18:10:39,665 INFO L73 IsDeterministic]: Start isDeterministic. Operand 50 states and 64 transitions. [2021-11-13 18:10:39,665 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-13 18:10:39,665 INFO L681 BuchiCegarLoop]: Abstraction has 50 states and 64 transitions. [2021-11-13 18:10:39,665 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states and 64 transitions. [2021-11-13 18:10:39,667 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 35. [2021-11-13 18:10:39,668 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35 states, 35 states have (on average 1.2857142857142858) internal successors, (45), 34 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 18:10:39,668 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 45 transitions. [2021-11-13 18:10:39,668 INFO L704 BuchiCegarLoop]: Abstraction has 35 states and 45 transitions. [2021-11-13 18:10:39,668 INFO L587 BuchiCegarLoop]: Abstraction has 35 states and 45 transitions. [2021-11-13 18:10:39,668 INFO L425 BuchiCegarLoop]: ======== Iteration 9============ [2021-11-13 18:10:39,668 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 35 states and 45 transitions. [2021-11-13 18:10:39,671 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 5 [2021-11-13 18:10:39,671 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-13 18:10:39,672 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-13 18:10:39,673 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 18:10:39,673 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-11-13 18:10:39,674 INFO L791 eck$LassoCheckResult]: Stem: 1539#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#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(6);call write~init~int(115, #t~string1.base, #t~string1.offset, 1);call write~init~int(101, #t~string1.base, 1 + #t~string1.offset, 1);call write~init~int(112, #t~string1.base, 2 + #t~string1.offset, 1);call write~init~int(46, #t~string1.base, 3 + #t~string1.offset, 1);call write~init~int(99, #t~string1.base, 4 + #t~string1.offset, 1);call write~init~int(0, #t~string1.base, 5 + #t~string1.offset, 1);~N~0 := 0; 1540#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet7#1, main_#t~ret8#1, main_#t~mem9#1, main_#t~mem10#1, main_#t~ret11#1, main_#t~mem12#1, main_#t~mem14#1, main_#t~post13#1, main_~i~1#1, main_#t~ret15#1, main_~#x~0#1.base, main_~#x~0#1.offset, main_~temp~0#1, main_~ret~1#1, main_~ret2~0#1, main_~ret5~0#1;~N~0 := main_#t~nondet7#1;havoc main_#t~nondet7#1; 1554#L34 assume ~N~0 > 1;call main_~#x~0#1.base, main_~#x~0#1.offset := #Ultimate.allocOnStack(4 * ~N~0);havoc main_~temp~0#1;havoc main_~ret~1#1;havoc main_~ret2~0#1;havoc main_~ret5~0#1;assume { :begin_inline_sep } true;sep_#in~x#1.base, sep_#in~x#1.offset := main_~#x~0#1.base, main_~#x~0#1.offset;havoc sep_#res#1;havoc sep_#t~mem4#1, sep_#t~post5#1, sep_#t~post6#1, sep_#t~post3#1, sep_~i~0#1, sep_~x#1.base, sep_~x#1.offset, sep_~ret~0#1;sep_~x#1.base, sep_~x#1.offset := sep_#in~x#1.base, sep_#in~x#1.offset;sep_~ret~0#1 := 0;sep_~i~0#1 := 0; 1559#L20-3 assume !!(sep_~i~0#1 < ~N~0);call sep_#t~mem4#1 := read~int(sep_~x#1.base, sep_~x#1.offset + 4 * sep_~i~0#1, 4); 1560#L22 assume !(0 == (if sep_#t~mem4#1 < 0 && 0 != sep_#t~mem4#1 % 2 then sep_#t~mem4#1 % 2 - 2 else sep_#t~mem4#1 % 2));havoc sep_#t~mem4#1;sep_#t~post6#1 := sep_~ret~0#1;sep_~ret~0#1 := sep_#t~post6#1 - 1;havoc sep_#t~post6#1; 1563#L20-2 sep_#t~post3#1 := sep_~i~0#1;sep_~i~0#1 := 1 + sep_#t~post3#1;havoc sep_#t~post3#1; 1561#L20-3 assume !!(sep_~i~0#1 < ~N~0);call sep_#t~mem4#1 := read~int(sep_~x#1.base, sep_~x#1.offset + 4 * sep_~i~0#1, 4); 1562#L22 assume 0 == (if sep_#t~mem4#1 < 0 && 0 != sep_#t~mem4#1 % 2 then sep_#t~mem4#1 % 2 - 2 else sep_#t~mem4#1 % 2);havoc sep_#t~mem4#1;sep_#t~post5#1 := sep_~ret~0#1;sep_~ret~0#1 := 1 + sep_#t~post5#1;havoc sep_#t~post5#1; 1568#L20-2 sep_#t~post3#1 := sep_~i~0#1;sep_~i~0#1 := 1 + sep_#t~post3#1;havoc sep_#t~post3#1; 1566#L20-3 assume !(sep_~i~0#1 < ~N~0); 1556#L20-4 sep_#res#1 := (if sep_~ret~0#1 % 4294967296 <= 2147483647 then sep_~ret~0#1 % 4294967296 else sep_~ret~0#1 % 4294967296 - 4294967296); 1543#L27 main_#t~ret8#1 := sep_#res#1;assume { :end_inline_sep } true;main_~ret~1#1 := main_#t~ret8#1;havoc main_#t~ret8#1;call main_#t~mem9#1 := read~int(main_~#x~0#1.base, main_~#x~0#1.offset, 4);main_~temp~0#1 := main_#t~mem9#1;havoc main_#t~mem9#1;call main_#t~mem10#1 := read~int(main_~#x~0#1.base, 4 + main_~#x~0#1.offset, 4);call write~int(main_#t~mem10#1, main_~#x~0#1.base, main_~#x~0#1.offset, 4);havoc main_#t~mem10#1;call write~int(main_~temp~0#1, main_~#x~0#1.base, 4 + main_~#x~0#1.offset, 4);assume { :begin_inline_sep } true;sep_#in~x#1.base, sep_#in~x#1.offset := main_~#x~0#1.base, main_~#x~0#1.offset;havoc sep_#res#1;havoc sep_#t~mem4#1, sep_#t~post5#1, sep_#t~post6#1, sep_#t~post3#1, sep_~i~0#1, sep_~x#1.base, sep_~x#1.offset, sep_~ret~0#1;sep_~x#1.base, sep_~x#1.offset := sep_#in~x#1.base, sep_#in~x#1.offset;sep_~ret~0#1 := 0;sep_~i~0#1 := 0; 1544#L20-8 assume !!(sep_~i~0#1 < ~N~0);call sep_#t~mem4#1 := read~int(sep_~x#1.base, sep_~x#1.offset + 4 * sep_~i~0#1, 4); 1545#L22-2 assume 0 == (if sep_#t~mem4#1 < 0 && 0 != sep_#t~mem4#1 % 2 then sep_#t~mem4#1 % 2 - 2 else sep_#t~mem4#1 % 2);havoc sep_#t~mem4#1;sep_#t~post5#1 := sep_~ret~0#1;sep_~ret~0#1 := 1 + sep_#t~post5#1;havoc sep_#t~post5#1; 1564#L20-7 sep_#t~post3#1 := sep_~i~0#1;sep_~i~0#1 := 1 + sep_#t~post3#1;havoc sep_#t~post3#1; 1546#L20-8 assume !!(sep_~i~0#1 < ~N~0);call sep_#t~mem4#1 := read~int(sep_~x#1.base, sep_~x#1.offset + 4 * sep_~i~0#1, 4); 1547#L22-2 assume !(0 == (if sep_#t~mem4#1 < 0 && 0 != sep_#t~mem4#1 % 2 then sep_#t~mem4#1 % 2 - 2 else sep_#t~mem4#1 % 2));havoc sep_#t~mem4#1;sep_#t~post6#1 := sep_~ret~0#1;sep_~ret~0#1 := sep_#t~post6#1 - 1;havoc sep_#t~post6#1; 1555#L20-7 sep_#t~post3#1 := sep_~i~0#1;sep_~i~0#1 := 1 + sep_#t~post3#1;havoc sep_#t~post3#1; 1565#L20-8 assume !(sep_~i~0#1 < ~N~0); 1541#L20-9 sep_#res#1 := (if sep_~ret~0#1 % 4294967296 <= 2147483647 then sep_~ret~0#1 % 4294967296 else sep_~ret~0#1 % 4294967296 - 4294967296); 1542#L27-1 main_#t~ret11#1 := sep_#res#1;assume { :end_inline_sep } true;main_~ret2~0#1 := main_#t~ret11#1;havoc main_#t~ret11#1;call main_#t~mem12#1 := read~int(main_~#x~0#1.base, main_~#x~0#1.offset, 4);main_~temp~0#1 := main_#t~mem12#1;havoc main_#t~mem12#1;main_~i~1#1 := 0; 1549#L46-3 [2021-11-13 18:10:39,674 INFO L793 eck$LassoCheckResult]: Loop: 1549#L46-3 assume !!(main_~i~1#1 < ~N~0 - 1);call main_#t~mem14#1 := read~int(main_~#x~0#1.base, main_~#x~0#1.offset + 4 * (1 + main_~i~1#1), 4);call write~int(main_#t~mem14#1, main_~#x~0#1.base, main_~#x~0#1.offset + 4 * main_~i~1#1, 4);havoc main_#t~mem14#1; 1548#L46-2 main_#t~post13#1 := main_~i~1#1;main_~i~1#1 := 1 + main_#t~post13#1;havoc main_#t~post13#1; 1549#L46-3 [2021-11-13 18:10:39,674 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:10:39,674 INFO L85 PathProgramCache]: Analyzing trace with hash 1952566107, now seen corresponding path program 1 times [2021-11-13 18:10:39,675 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 18:10:39,675 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [505212955] [2021-11-13 18:10:39,675 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:10:39,676 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 18:10:39,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-13 18:10:39,733 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-13 18:10:39,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-13 18:10:39,778 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-13 18:10:39,779 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:10:39,779 INFO L85 PathProgramCache]: Analyzing trace with hash 2723, now seen corresponding path program 4 times [2021-11-13 18:10:39,779 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 18:10:39,779 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2039524703] [2021-11-13 18:10:39,779 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:10:39,780 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 18:10:39,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-13 18:10:39,783 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-13 18:10:39,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-13 18:10:39,786 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-13 18:10:39,788 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:10:39,788 INFO L85 PathProgramCache]: Analyzing trace with hash -484677763, now seen corresponding path program 1 times [2021-11-13 18:10:39,788 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 18:10:39,789 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1831010919] [2021-11-13 18:10:39,789 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:10:39,789 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 18:10:39,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-13 18:10:39,817 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-13 18:10:39,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-13 18:10:39,876 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-13 18:10:41,349 INFO L210 LassoAnalysis]: Preferences: [2021-11-13 18:10:41,350 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-11-13 18:10:41,350 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-11-13 18:10:41,350 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-11-13 18:10:41,350 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-11-13 18:10:41,350 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-13 18:10:41,350 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-11-13 18:10:41,350 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-11-13 18:10:41,350 INFO L133 ssoRankerPreferences]: Filename of dumped script: sep.i_Iteration9_Lasso [2021-11-13 18:10:41,350 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-11-13 18:10:41,350 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-11-13 18:10:41,353 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-13 18:10:41,359 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-13 18:10:41,361 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-13 18:10:41,363 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-13 18:10:42,194 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-13 18:10:42,202 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-13 18:10:42,204 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-13 18:10:42,206 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-13 18:10:42,208 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-13 18:10:42,209 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-13 18:10:42,211 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-13 18:10:42,213 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-13 18:10:42,215 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-13 18:10:42,217 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-13 18:10:42,218 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-13 18:10:42,220 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-13 18:10:42,222 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-13 18:10:42,231 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-13 18:10:42,233 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-13 18:10:42,235 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-13 18:10:42,706 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-11-13 18:10:42,706 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-11-13 18:10:42,706 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-13 18:10:42,706 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3790920e-7321-45ee-9abd-52e221d3c57d/bin/uautomizer-YU5uOKAj3y/z3 [2021-11-13 18:10:42,713 INFO L229 MonitoredProcess]: Starting monitored process 48 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3790920e-7321-45ee-9abd-52e221d3c57d/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-13 18:10:42,722 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 [2021-11-13 18:10:42,731 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-13 18:10:42,731 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-13 18:10:42,731 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-13 18:10:42,731 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-13 18:10:42,731 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-13 18:10:42,732 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-13 18:10:42,732 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-13 18:10:42,733 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3790920e-7321-45ee-9abd-52e221d3c57d/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (48)] Waiting until timeout for monitored process [2021-11-13 18:10:42,743 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-13 18:10:42,765 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3790920e-7321-45ee-9abd-52e221d3c57d/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (48)] Ended with exit code 0 [2021-11-13 18:10:42,765 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-13 18:10:42,765 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3790920e-7321-45ee-9abd-52e221d3c57d/bin/uautomizer-YU5uOKAj3y/z3 [2021-11-13 18:10:42,766 INFO L229 MonitoredProcess]: Starting monitored process 49 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3790920e-7321-45ee-9abd-52e221d3c57d/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-13 18:10:42,766 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3790920e-7321-45ee-9abd-52e221d3c57d/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (49)] Waiting until timeout for monitored process [2021-11-13 18:10:42,767 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-13 18:10:42,774 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-13 18:10:42,774 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-13 18:10:42,774 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-13 18:10:42,774 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-13 18:10:42,775 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-13 18:10:42,775 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-13 18:10:42,775 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-13 18:10:42,776 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-13 18:10:42,796 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3790920e-7321-45ee-9abd-52e221d3c57d/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (49)] Ended with exit code 0 [2021-11-13 18:10:42,796 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-13 18:10:42,796 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3790920e-7321-45ee-9abd-52e221d3c57d/bin/uautomizer-YU5uOKAj3y/z3 [2021-11-13 18:10:42,797 INFO L229 MonitoredProcess]: Starting monitored process 50 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3790920e-7321-45ee-9abd-52e221d3c57d/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-13 18:10:42,798 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3790920e-7321-45ee-9abd-52e221d3c57d/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (50)] Waiting until timeout for monitored process [2021-11-13 18:10:42,798 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-13 18:10:42,805 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-13 18:10:42,806 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-13 18:10:42,806 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-13 18:10:42,806 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-13 18:10:42,807 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-11-13 18:10:42,807 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-11-13 18:10:42,809 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-13 18:10:42,829 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3790920e-7321-45ee-9abd-52e221d3c57d/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (50)] Forceful destruction successful, exit code 0 [2021-11-13 18:10:42,830 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-13 18:10:42,830 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3790920e-7321-45ee-9abd-52e221d3c57d/bin/uautomizer-YU5uOKAj3y/z3 [2021-11-13 18:10:42,831 INFO L229 MonitoredProcess]: Starting monitored process 51 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3790920e-7321-45ee-9abd-52e221d3c57d/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-13 18:10:42,832 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3790920e-7321-45ee-9abd-52e221d3c57d/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (51)] Waiting until timeout for monitored process [2021-11-13 18:10:42,833 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-13 18:10:42,840 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-13 18:10:42,840 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-13 18:10:42,840 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-13 18:10:42,840 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-13 18:10:42,840 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-13 18:10:42,841 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-13 18:10:42,841 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-13 18:10:42,842 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-13 18:10:42,862 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3790920e-7321-45ee-9abd-52e221d3c57d/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (51)] Forceful destruction successful, exit code 0 [2021-11-13 18:10:42,862 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-13 18:10:42,862 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3790920e-7321-45ee-9abd-52e221d3c57d/bin/uautomizer-YU5uOKAj3y/z3 [2021-11-13 18:10:42,865 INFO L229 MonitoredProcess]: Starting monitored process 52 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3790920e-7321-45ee-9abd-52e221d3c57d/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-13 18:10:42,868 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3790920e-7321-45ee-9abd-52e221d3c57d/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (52)] Waiting until timeout for monitored process [2021-11-13 18:10:42,868 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-13 18:10:42,875 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-13 18:10:42,875 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-13 18:10:42,875 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-13 18:10:42,875 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-13 18:10:42,878 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-11-13 18:10:42,878 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-11-13 18:10:42,905 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-13 18:10:42,938 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3790920e-7321-45ee-9abd-52e221d3c57d/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (52)] Forceful destruction successful, exit code 0 [2021-11-13 18:10:42,939 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-13 18:10:42,939 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3790920e-7321-45ee-9abd-52e221d3c57d/bin/uautomizer-YU5uOKAj3y/z3 [2021-11-13 18:10:42,940 INFO L229 MonitoredProcess]: Starting monitored process 53 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3790920e-7321-45ee-9abd-52e221d3c57d/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-13 18:10:42,941 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3790920e-7321-45ee-9abd-52e221d3c57d/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (53)] Waiting until timeout for monitored process [2021-11-13 18:10:42,942 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-13 18:10:42,949 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-13 18:10:42,949 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-13 18:10:42,949 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-13 18:10:42,949 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-13 18:10:42,955 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-11-13 18:10:42,955 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-11-13 18:10:42,967 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-11-13 18:10:43,010 INFO L443 ModelExtractionUtils]: Simplification made 24 calls to the SMT solver. [2021-11-13 18:10:43,010 INFO L444 ModelExtractionUtils]: 2 out of 31 variables were initially zero. Simplification set additionally 25 variables to zero. [2021-11-13 18:10:43,010 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-13 18:10:43,010 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3790920e-7321-45ee-9abd-52e221d3c57d/bin/uautomizer-YU5uOKAj3y/z3 [2021-11-13 18:10:43,021 INFO L229 MonitoredProcess]: Starting monitored process 54 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3790920e-7321-45ee-9abd-52e221d3c57d/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-13 18:10:43,022 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3790920e-7321-45ee-9abd-52e221d3c57d/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (54)] Waiting until timeout for monitored process [2021-11-13 18:10:43,022 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-11-13 18:10:43,030 INFO L438 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2021-11-13 18:10:43,030 INFO L513 LassoAnalysis]: Proved termination. [2021-11-13 18:10:43,030 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~1#1, v_rep(select #length ULTIMATE.start_main_~#x~0#1.base)_3) = -4*ULTIMATE.start_main_~i~1#1 + 1*v_rep(select #length ULTIMATE.start_main_~#x~0#1.base)_3 Supporting invariants [1*ULTIMATE.start_sep_~x#1.offset >= 0] [2021-11-13 18:10:43,050 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3790920e-7321-45ee-9abd-52e221d3c57d/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (53)] Ended with exit code 0 [2021-11-13 18:10:43,350 INFO L297 tatePredicateManager]: 73 out of 77 supporting invariants were superfluous and have been removed [2021-11-13 18:10:43,411 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:10:43,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:10:43,440 INFO L263 TraceCheckSpWp]: Trace formula consists of 150 conjuncts, 14 conjunts are in the unsatisfiable core [2021-11-13 18:10:43,441 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 18:10:43,473 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3790920e-7321-45ee-9abd-52e221d3c57d/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (54)] Forceful destruction successful, exit code 0 [2021-11-13 18:10:43,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:10:43,763 WARN L261 TraceCheckSpWp]: Trace formula consists of 19 conjuncts, 11 conjunts are in the unsatisfiable core [2021-11-13 18:10:43,764 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 18:10:43,805 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 18:10:43,805 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.5 stem predicates 2 loop predicates [2021-11-13 18:10:43,806 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 35 states and 45 transitions. cyclomatic complexity: 15 Second operand has 7 states, 7 states have (on average 2.857142857142857) internal successors, (20), 6 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) [2021-11-13 18:10:43,878 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 35 states and 45 transitions. cyclomatic complexity: 15. Second operand has 7 states, 7 states have (on average 2.857142857142857) internal successors, (20), 6 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 41 states and 56 transitions. Complement of second has 9 states. [2021-11-13 18:10:43,878 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 7 states 4 stem states 2 non-accepting loop states 1 accepting loop states [2021-11-13 18:10:43,879 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7 states, 7 states have (on average 2.857142857142857) internal successors, (20), 6 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) [2021-11-13 18:10:43,879 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 33 transitions. [2021-11-13 18:10:43,879 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 33 transitions. Stem has 21 letters. Loop has 2 letters. [2021-11-13 18:10:43,880 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-13 18:10:43,880 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 33 transitions. Stem has 23 letters. Loop has 2 letters. [2021-11-13 18:10:43,880 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-13 18:10:43,880 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 33 transitions. Stem has 21 letters. Loop has 4 letters. [2021-11-13 18:10:43,880 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-13 18:10:43,880 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 41 states and 56 transitions. [2021-11-13 18:10:43,881 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2021-11-13 18:10:43,882 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 41 states to 36 states and 47 transitions. [2021-11-13 18:10:43,882 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 16 [2021-11-13 18:10:43,882 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 17 [2021-11-13 18:10:43,882 INFO L73 IsDeterministic]: Start isDeterministic. Operand 36 states and 47 transitions. [2021-11-13 18:10:43,882 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-13 18:10:43,882 INFO L681 BuchiCegarLoop]: Abstraction has 36 states and 47 transitions. [2021-11-13 18:10:43,882 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states and 47 transitions. [2021-11-13 18:10:43,885 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 36. [2021-11-13 18:10:43,885 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36 states, 36 states have (on average 1.3055555555555556) internal successors, (47), 35 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) [2021-11-13 18:10:43,885 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 47 transitions. [2021-11-13 18:10:43,886 INFO L704 BuchiCegarLoop]: Abstraction has 36 states and 47 transitions. [2021-11-13 18:10:43,886 INFO L587 BuchiCegarLoop]: Abstraction has 36 states and 47 transitions. [2021-11-13 18:10:43,886 INFO L425 BuchiCegarLoop]: ======== Iteration 10============ [2021-11-13 18:10:43,886 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 36 states and 47 transitions. [2021-11-13 18:10:43,886 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2021-11-13 18:10:43,887 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-13 18:10:43,887 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-13 18:10:43,887 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 18:10:43,887 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-11-13 18:10:43,888 INFO L791 eck$LassoCheckResult]: Stem: 2032#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#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(6);call write~init~int(115, #t~string1.base, #t~string1.offset, 1);call write~init~int(101, #t~string1.base, 1 + #t~string1.offset, 1);call write~init~int(112, #t~string1.base, 2 + #t~string1.offset, 1);call write~init~int(46, #t~string1.base, 3 + #t~string1.offset, 1);call write~init~int(99, #t~string1.base, 4 + #t~string1.offset, 1);call write~init~int(0, #t~string1.base, 5 + #t~string1.offset, 1);~N~0 := 0; 2033#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet7#1, main_#t~ret8#1, main_#t~mem9#1, main_#t~mem10#1, main_#t~ret11#1, main_#t~mem12#1, main_#t~mem14#1, main_#t~post13#1, main_~i~1#1, main_#t~ret15#1, main_~#x~0#1.base, main_~#x~0#1.offset, main_~temp~0#1, main_~ret~1#1, main_~ret2~0#1, main_~ret5~0#1;~N~0 := main_#t~nondet7#1;havoc main_#t~nondet7#1; 2047#L34 assume ~N~0 > 1;call main_~#x~0#1.base, main_~#x~0#1.offset := #Ultimate.allocOnStack(4 * ~N~0);havoc main_~temp~0#1;havoc main_~ret~1#1;havoc main_~ret2~0#1;havoc main_~ret5~0#1;assume { :begin_inline_sep } true;sep_#in~x#1.base, sep_#in~x#1.offset := main_~#x~0#1.base, main_~#x~0#1.offset;havoc sep_#res#1;havoc sep_#t~mem4#1, sep_#t~post5#1, sep_#t~post6#1, sep_#t~post3#1, sep_~i~0#1, sep_~x#1.base, sep_~x#1.offset, sep_~ret~0#1;sep_~x#1.base, sep_~x#1.offset := sep_#in~x#1.base, sep_#in~x#1.offset;sep_~ret~0#1 := 0;sep_~i~0#1 := 0; 2051#L20-3 assume !!(sep_~i~0#1 < ~N~0);call sep_#t~mem4#1 := read~int(sep_~x#1.base, sep_~x#1.offset + 4 * sep_~i~0#1, 4); 2052#L22 assume !(0 == (if sep_#t~mem4#1 < 0 && 0 != sep_#t~mem4#1 % 2 then sep_#t~mem4#1 % 2 - 2 else sep_#t~mem4#1 % 2));havoc sep_#t~mem4#1;sep_#t~post6#1 := sep_~ret~0#1;sep_~ret~0#1 := sep_#t~post6#1 - 1;havoc sep_#t~post6#1; 2065#L20-2 sep_#t~post3#1 := sep_~i~0#1;sep_~i~0#1 := 1 + sep_#t~post3#1;havoc sep_#t~post3#1; 2064#L20-3 assume !!(sep_~i~0#1 < ~N~0);call sep_#t~mem4#1 := read~int(sep_~x#1.base, sep_~x#1.offset + 4 * sep_~i~0#1, 4); 2063#L22 assume 0 == (if sep_#t~mem4#1 < 0 && 0 != sep_#t~mem4#1 % 2 then sep_#t~mem4#1 % 2 - 2 else sep_#t~mem4#1 % 2);havoc sep_#t~mem4#1;sep_#t~post5#1 := sep_~ret~0#1;sep_~ret~0#1 := 1 + sep_#t~post5#1;havoc sep_#t~post5#1; 2050#L20-2 sep_#t~post3#1 := sep_~i~0#1;sep_~i~0#1 := 1 + sep_#t~post3#1;havoc sep_#t~post3#1; 2053#L20-3 assume !(sep_~i~0#1 < ~N~0); 2048#L20-4 sep_#res#1 := (if sep_~ret~0#1 % 4294967296 <= 2147483647 then sep_~ret~0#1 % 4294967296 else sep_~ret~0#1 % 4294967296 - 4294967296); 2034#L27 main_#t~ret8#1 := sep_#res#1;assume { :end_inline_sep } true;main_~ret~1#1 := main_#t~ret8#1;havoc main_#t~ret8#1;call main_#t~mem9#1 := read~int(main_~#x~0#1.base, main_~#x~0#1.offset, 4);main_~temp~0#1 := main_#t~mem9#1;havoc main_#t~mem9#1;call main_#t~mem10#1 := read~int(main_~#x~0#1.base, 4 + main_~#x~0#1.offset, 4);call write~int(main_#t~mem10#1, main_~#x~0#1.base, main_~#x~0#1.offset, 4);havoc main_#t~mem10#1;call write~int(main_~temp~0#1, main_~#x~0#1.base, 4 + main_~#x~0#1.offset, 4);assume { :begin_inline_sep } true;sep_#in~x#1.base, sep_#in~x#1.offset := main_~#x~0#1.base, main_~#x~0#1.offset;havoc sep_#res#1;havoc sep_#t~mem4#1, sep_#t~post5#1, sep_#t~post6#1, sep_#t~post3#1, sep_~i~0#1, sep_~x#1.base, sep_~x#1.offset, sep_~ret~0#1;sep_~x#1.base, sep_~x#1.offset := sep_#in~x#1.base, sep_#in~x#1.offset;sep_~ret~0#1 := 0;sep_~i~0#1 := 0; 2035#L20-8 assume !!(sep_~i~0#1 < ~N~0);call sep_#t~mem4#1 := read~int(sep_~x#1.base, sep_~x#1.offset + 4 * sep_~i~0#1, 4); 2036#L22-2 assume 0 == (if sep_#t~mem4#1 < 0 && 0 != sep_#t~mem4#1 % 2 then sep_#t~mem4#1 % 2 - 2 else sep_#t~mem4#1 % 2);havoc sep_#t~mem4#1;sep_#t~post5#1 := sep_~ret~0#1;sep_~ret~0#1 := 1 + sep_#t~post5#1;havoc sep_#t~post5#1; 2046#L20-7 sep_#t~post3#1 := sep_~i~0#1;sep_~i~0#1 := 1 + sep_#t~post3#1;havoc sep_#t~post3#1; 2037#L20-8 assume !!(sep_~i~0#1 < ~N~0);call sep_#t~mem4#1 := read~int(sep_~x#1.base, sep_~x#1.offset + 4 * sep_~i~0#1, 4); 2038#L22-2 assume !(0 == (if sep_#t~mem4#1 < 0 && 0 != sep_#t~mem4#1 % 2 then sep_#t~mem4#1 % 2 - 2 else sep_#t~mem4#1 % 2));havoc sep_#t~mem4#1;sep_#t~post6#1 := sep_~ret~0#1;sep_~ret~0#1 := sep_#t~post6#1 - 1;havoc sep_#t~post6#1; 2055#L20-7 sep_#t~post3#1 := sep_~i~0#1;sep_~i~0#1 := 1 + sep_#t~post3#1;havoc sep_#t~post3#1; 2056#L20-8 assume !(sep_~i~0#1 < ~N~0); 2030#L20-9 sep_#res#1 := (if sep_~ret~0#1 % 4294967296 <= 2147483647 then sep_~ret~0#1 % 4294967296 else sep_~ret~0#1 % 4294967296 - 4294967296); 2031#L27-1 main_#t~ret11#1 := sep_#res#1;assume { :end_inline_sep } true;main_~ret2~0#1 := main_#t~ret11#1;havoc main_#t~ret11#1;call main_#t~mem12#1 := read~int(main_~#x~0#1.base, main_~#x~0#1.offset, 4);main_~temp~0#1 := main_#t~mem12#1;havoc main_#t~mem12#1;main_~i~1#1 := 0; 2054#L46-3 assume !(main_~i~1#1 < ~N~0 - 1); 2041#L46-4 call write~int(main_~temp~0#1, main_~#x~0#1.base, main_~#x~0#1.offset + 4 * (~N~0 - 1), 4);assume { :begin_inline_sep } true;sep_#in~x#1.base, sep_#in~x#1.offset := main_~#x~0#1.base, main_~#x~0#1.offset;havoc sep_#res#1;havoc sep_#t~mem4#1, sep_#t~post5#1, sep_#t~post6#1, sep_#t~post3#1, sep_~i~0#1, sep_~x#1.base, sep_~x#1.offset, sep_~ret~0#1;sep_~x#1.base, sep_~x#1.offset := sep_#in~x#1.base, sep_#in~x#1.offset;sep_~ret~0#1 := 0;sep_~i~0#1 := 0; 2042#L20-13 [2021-11-13 18:10:43,888 INFO L793 eck$LassoCheckResult]: Loop: 2042#L20-13 assume !!(sep_~i~0#1 < ~N~0);call sep_#t~mem4#1 := read~int(sep_~x#1.base, sep_~x#1.offset + 4 * sep_~i~0#1, 4); 2043#L22-4 assume 0 == (if sep_#t~mem4#1 < 0 && 0 != sep_#t~mem4#1 % 2 then sep_#t~mem4#1 % 2 - 2 else sep_#t~mem4#1 % 2);havoc sep_#t~mem4#1;sep_#t~post5#1 := sep_~ret~0#1;sep_~ret~0#1 := 1 + sep_#t~post5#1;havoc sep_#t~post5#1; 2044#L20-12 sep_#t~post3#1 := sep_~i~0#1;sep_~i~0#1 := 1 + sep_#t~post3#1;havoc sep_#t~post3#1; 2042#L20-13 [2021-11-13 18:10:43,888 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:10:43,889 INFO L85 PathProgramCache]: Analyzing trace with hash -484677821, now seen corresponding path program 1 times [2021-11-13 18:10:43,889 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 18:10:43,889 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1625510301] [2021-11-13 18:10:43,889 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:10:43,889 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 18:10:43,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:10:43,930 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2021-11-13 18:10:43,930 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 18:10:43,930 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1625510301] [2021-11-13 18:10:43,931 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1625510301] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 18:10:43,931 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 18:10:43,931 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-13 18:10:43,931 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [144951036] [2021-11-13 18:10:43,931 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 18:10:43,932 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-11-13 18:10:43,932 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:10:43,932 INFO L85 PathProgramCache]: Analyzing trace with hash 98408, now seen corresponding path program 1 times [2021-11-13 18:10:43,932 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 18:10:43,932 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1904092388] [2021-11-13 18:10:43,932 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:10:43,933 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 18:10:43,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-13 18:10:43,937 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-13 18:10:43,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-13 18:10:43,941 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-13 18:10:43,983 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 18:10:43,983 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-13 18:10:43,983 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-13 18:10:43,985 INFO L87 Difference]: Start difference. First operand 36 states and 47 transitions. cyclomatic complexity: 16 Second operand has 4 states, 4 states have (on average 4.75) internal successors, (19), 4 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 18:10:44,011 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 18:10:44,011 INFO L93 Difference]: Finished difference Result 37 states and 47 transitions. [2021-11-13 18:10:44,011 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-13 18:10:44,012 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 37 states and 47 transitions. [2021-11-13 18:10:44,012 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2021-11-13 18:10:44,013 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 37 states to 37 states and 47 transitions. [2021-11-13 18:10:44,013 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 17 [2021-11-13 18:10:44,013 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 17 [2021-11-13 18:10:44,014 INFO L73 IsDeterministic]: Start isDeterministic. Operand 37 states and 47 transitions. [2021-11-13 18:10:44,014 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-13 18:10:44,014 INFO L681 BuchiCegarLoop]: Abstraction has 37 states and 47 transitions. [2021-11-13 18:10:44,014 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states and 47 transitions. [2021-11-13 18:10:44,016 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 36. [2021-11-13 18:10:44,016 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36 states, 36 states have (on average 1.2777777777777777) internal successors, (46), 35 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 18:10:44,017 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 46 transitions. [2021-11-13 18:10:44,017 INFO L704 BuchiCegarLoop]: Abstraction has 36 states and 46 transitions. [2021-11-13 18:10:44,017 INFO L587 BuchiCegarLoop]: Abstraction has 36 states and 46 transitions. [2021-11-13 18:10:44,017 INFO L425 BuchiCegarLoop]: ======== Iteration 11============ [2021-11-13 18:10:44,017 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 36 states and 46 transitions. [2021-11-13 18:10:44,018 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2021-11-13 18:10:44,018 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-13 18:10:44,018 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-13 18:10:44,019 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 18:10:44,019 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-11-13 18:10:44,019 INFO L791 eck$LassoCheckResult]: Stem: 2110#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#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(6);call write~init~int(115, #t~string1.base, #t~string1.offset, 1);call write~init~int(101, #t~string1.base, 1 + #t~string1.offset, 1);call write~init~int(112, #t~string1.base, 2 + #t~string1.offset, 1);call write~init~int(46, #t~string1.base, 3 + #t~string1.offset, 1);call write~init~int(99, #t~string1.base, 4 + #t~string1.offset, 1);call write~init~int(0, #t~string1.base, 5 + #t~string1.offset, 1);~N~0 := 0; 2111#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet7#1, main_#t~ret8#1, main_#t~mem9#1, main_#t~mem10#1, main_#t~ret11#1, main_#t~mem12#1, main_#t~mem14#1, main_#t~post13#1, main_~i~1#1, main_#t~ret15#1, main_~#x~0#1.base, main_~#x~0#1.offset, main_~temp~0#1, main_~ret~1#1, main_~ret2~0#1, main_~ret5~0#1;~N~0 := main_#t~nondet7#1;havoc main_#t~nondet7#1; 2125#L34 assume ~N~0 > 1;call main_~#x~0#1.base, main_~#x~0#1.offset := #Ultimate.allocOnStack(4 * ~N~0);havoc main_~temp~0#1;havoc main_~ret~1#1;havoc main_~ret2~0#1;havoc main_~ret5~0#1;assume { :begin_inline_sep } true;sep_#in~x#1.base, sep_#in~x#1.offset := main_~#x~0#1.base, main_~#x~0#1.offset;havoc sep_#res#1;havoc sep_#t~mem4#1, sep_#t~post5#1, sep_#t~post6#1, sep_#t~post3#1, sep_~i~0#1, sep_~x#1.base, sep_~x#1.offset, sep_~ret~0#1;sep_~x#1.base, sep_~x#1.offset := sep_#in~x#1.base, sep_#in~x#1.offset;sep_~ret~0#1 := 0;sep_~i~0#1 := 0; 2130#L20-3 assume !!(sep_~i~0#1 < ~N~0);call sep_#t~mem4#1 := read~int(sep_~x#1.base, sep_~x#1.offset + 4 * sep_~i~0#1, 4); 2128#L22 assume !(0 == (if sep_#t~mem4#1 < 0 && 0 != sep_#t~mem4#1 % 2 then sep_#t~mem4#1 % 2 - 2 else sep_#t~mem4#1 % 2));havoc sep_#t~mem4#1;sep_#t~post6#1 := sep_~ret~0#1;sep_~ret~0#1 := sep_#t~post6#1 - 1;havoc sep_#t~post6#1; 2129#L20-2 sep_#t~post3#1 := sep_~i~0#1;sep_~i~0#1 := 1 + sep_#t~post3#1;havoc sep_#t~post3#1; 2131#L20-3 assume !!(sep_~i~0#1 < ~N~0);call sep_#t~mem4#1 := read~int(sep_~x#1.base, sep_~x#1.offset + 4 * sep_~i~0#1, 4); 2132#L22 assume 0 == (if sep_#t~mem4#1 < 0 && 0 != sep_#t~mem4#1 % 2 then sep_#t~mem4#1 % 2 - 2 else sep_#t~mem4#1 % 2);havoc sep_#t~mem4#1;sep_#t~post5#1 := sep_~ret~0#1;sep_~ret~0#1 := 1 + sep_#t~post5#1;havoc sep_#t~post5#1; 2144#L20-2 sep_#t~post3#1 := sep_~i~0#1;sep_~i~0#1 := 1 + sep_#t~post3#1;havoc sep_#t~post3#1; 2140#L20-3 assume !(sep_~i~0#1 < ~N~0); 2139#L20-4 sep_#res#1 := (if sep_~ret~0#1 % 4294967296 <= 2147483647 then sep_~ret~0#1 % 4294967296 else sep_~ret~0#1 % 4294967296 - 4294967296); 2138#L27 main_#t~ret8#1 := sep_#res#1;assume { :end_inline_sep } true;main_~ret~1#1 := main_#t~ret8#1;havoc main_#t~ret8#1;call main_#t~mem9#1 := read~int(main_~#x~0#1.base, main_~#x~0#1.offset, 4);main_~temp~0#1 := main_#t~mem9#1;havoc main_#t~mem9#1;call main_#t~mem10#1 := read~int(main_~#x~0#1.base, 4 + main_~#x~0#1.offset, 4);call write~int(main_#t~mem10#1, main_~#x~0#1.base, main_~#x~0#1.offset, 4);havoc main_#t~mem10#1;call write~int(main_~temp~0#1, main_~#x~0#1.base, 4 + main_~#x~0#1.offset, 4);assume { :begin_inline_sep } true;sep_#in~x#1.base, sep_#in~x#1.offset := main_~#x~0#1.base, main_~#x~0#1.offset;havoc sep_#res#1;havoc sep_#t~mem4#1, sep_#t~post5#1, sep_#t~post6#1, sep_#t~post3#1, sep_~i~0#1, sep_~x#1.base, sep_~x#1.offset, sep_~ret~0#1;sep_~x#1.base, sep_~x#1.offset := sep_#in~x#1.base, sep_#in~x#1.offset;sep_~ret~0#1 := 0;sep_~i~0#1 := 0; 2137#L20-8 assume !!(sep_~i~0#1 < ~N~0);call sep_#t~mem4#1 := read~int(sep_~x#1.base, sep_~x#1.offset + 4 * sep_~i~0#1, 4); 2136#L22-2 assume 0 == (if sep_#t~mem4#1 < 0 && 0 != sep_#t~mem4#1 % 2 then sep_#t~mem4#1 % 2 - 2 else sep_#t~mem4#1 % 2);havoc sep_#t~mem4#1;sep_#t~post5#1 := sep_~ret~0#1;sep_~ret~0#1 := 1 + sep_#t~post5#1;havoc sep_#t~post5#1; 2126#L20-7 sep_#t~post3#1 := sep_~i~0#1;sep_~i~0#1 := 1 + sep_#t~post3#1;havoc sep_#t~post3#1; 2117#L20-8 assume !!(sep_~i~0#1 < ~N~0);call sep_#t~mem4#1 := read~int(sep_~x#1.base, sep_~x#1.offset + 4 * sep_~i~0#1, 4); 2118#L22-2 assume !(0 == (if sep_#t~mem4#1 < 0 && 0 != sep_#t~mem4#1 % 2 then sep_#t~mem4#1 % 2 - 2 else sep_#t~mem4#1 % 2));havoc sep_#t~mem4#1;sep_#t~post6#1 := sep_~ret~0#1;sep_~ret~0#1 := sep_#t~post6#1 - 1;havoc sep_#t~post6#1; 2135#L20-7 sep_#t~post3#1 := sep_~i~0#1;sep_~i~0#1 := 1 + sep_#t~post3#1;havoc sep_#t~post3#1; 2134#L20-8 assume !(sep_~i~0#1 < ~N~0); 2112#L20-9 sep_#res#1 := (if sep_~ret~0#1 % 4294967296 <= 2147483647 then sep_~ret~0#1 % 4294967296 else sep_~ret~0#1 % 4294967296 - 4294967296); 2113#L27-1 main_#t~ret11#1 := sep_#res#1;assume { :end_inline_sep } true;main_~ret2~0#1 := main_#t~ret11#1;havoc main_#t~ret11#1;call main_#t~mem12#1 := read~int(main_~#x~0#1.base, main_~#x~0#1.offset, 4);main_~temp~0#1 := main_#t~mem12#1;havoc main_#t~mem12#1;main_~i~1#1 := 0; 2133#L46-3 assume !!(main_~i~1#1 < ~N~0 - 1);call main_#t~mem14#1 := read~int(main_~#x~0#1.base, main_~#x~0#1.offset + 4 * (1 + main_~i~1#1), 4);call write~int(main_#t~mem14#1, main_~#x~0#1.base, main_~#x~0#1.offset + 4 * main_~i~1#1, 4);havoc main_#t~mem14#1; 2119#L46-2 main_#t~post13#1 := main_~i~1#1;main_~i~1#1 := 1 + main_#t~post13#1;havoc main_#t~post13#1; 2120#L46-3 assume !(main_~i~1#1 < ~N~0 - 1); 2121#L46-4 call write~int(main_~temp~0#1, main_~#x~0#1.base, main_~#x~0#1.offset + 4 * (~N~0 - 1), 4);assume { :begin_inline_sep } true;sep_#in~x#1.base, sep_#in~x#1.offset := main_~#x~0#1.base, main_~#x~0#1.offset;havoc sep_#res#1;havoc sep_#t~mem4#1, sep_#t~post5#1, sep_#t~post6#1, sep_#t~post3#1, sep_~i~0#1, sep_~x#1.base, sep_~x#1.offset, sep_~ret~0#1;sep_~x#1.base, sep_~x#1.offset := sep_#in~x#1.base, sep_#in~x#1.offset;sep_~ret~0#1 := 0;sep_~i~0#1 := 0; 2122#L20-13 [2021-11-13 18:10:44,019 INFO L793 eck$LassoCheckResult]: Loop: 2122#L20-13 assume !!(sep_~i~0#1 < ~N~0);call sep_#t~mem4#1 := read~int(sep_~x#1.base, sep_~x#1.offset + 4 * sep_~i~0#1, 4); 2123#L22-4 assume 0 == (if sep_#t~mem4#1 < 0 && 0 != sep_#t~mem4#1 % 2 then sep_#t~mem4#1 % 2 - 2 else sep_#t~mem4#1 % 2);havoc sep_#t~mem4#1;sep_#t~post5#1 := sep_~ret~0#1;sep_~ret~0#1 := 1 + sep_#t~post5#1;havoc sep_#t~post5#1; 2124#L20-12 sep_#t~post3#1 := sep_~i~0#1;sep_~i~0#1 := 1 + sep_#t~post3#1;havoc sep_#t~post3#1; 2122#L20-13 [2021-11-13 18:10:44,020 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:10:44,020 INFO L85 PathProgramCache]: Analyzing trace with hash -1918860571, now seen corresponding path program 1 times [2021-11-13 18:10:44,020 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 18:10:44,020 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1361318627] [2021-11-13 18:10:44,020 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:10:44,021 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 18:10:44,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-13 18:10:44,048 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-13 18:10:44,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-13 18:10:44,111 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-13 18:10:44,111 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:10:44,111 INFO L85 PathProgramCache]: Analyzing trace with hash 98408, now seen corresponding path program 2 times [2021-11-13 18:10:44,112 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 18:10:44,112 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [5707024] [2021-11-13 18:10:44,112 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:10:44,112 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 18:10:44,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-13 18:10:44,121 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-13 18:10:44,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-13 18:10:44,125 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-13 18:10:44,128 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:10:44,128 INFO L85 PathProgramCache]: Analyzing trace with hash 1239507716, now seen corresponding path program 1 times [2021-11-13 18:10:44,128 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 18:10:44,128 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2068630133] [2021-11-13 18:10:44,128 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:10:44,129 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 18:10:44,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:10:44,864 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 18:10:44,864 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 18:10:44,864 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2068630133] [2021-11-13 18:10:44,864 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2068630133] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-13 18:10:44,864 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [998151189] [2021-11-13 18:10:44,865 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:10:44,865 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-13 18:10:44,865 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3790920e-7321-45ee-9abd-52e221d3c57d/bin/uautomizer-YU5uOKAj3y/z3 [2021-11-13 18:10:44,866 INFO L229 MonitoredProcess]: Starting monitored process 55 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3790920e-7321-45ee-9abd-52e221d3c57d/bin/uautomizer-YU5uOKAj3y/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-13 18:10:44,883 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3790920e-7321-45ee-9abd-52e221d3c57d/bin/uautomizer-YU5uOKAj3y/z3 -smt2 -in SMTLIB2_COMPLIANT=true (55)] Waiting until timeout for monitored process [2021-11-13 18:10:44,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:10:44,933 INFO L263 TraceCheckSpWp]: Trace formula consists of 191 conjuncts, 37 conjunts are in the unsatisfiable core [2021-11-13 18:10:44,935 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 18:10:45,104 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 18:10:45,107 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 18:10:45,107 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 37 treesize of output 23 [2021-11-13 18:10:45,277 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 18:10:45,278 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 23 [2021-11-13 18:10:45,386 INFO L354 Elim1Store]: treesize reduction 42, result has 33.3 percent of original size [2021-11-13 18:10:45,386 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 40 treesize of output 44 [2021-11-13 18:10:45,423 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 15 [2021-11-13 18:10:45,468 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2021-11-13 18:10:45,469 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 18:10:46,014 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 18:10:46,014 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 49 treesize of output 51 [2021-11-13 18:10:46,033 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 42 [2021-11-13 18:10:46,065 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 18:10:46,065 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 62 treesize of output 64 [2021-11-13 18:10:46,182 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 1 proven. 3 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2021-11-13 18:10:46,183 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [998151189] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-13 18:10:46,183 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-13 18:10:46,183 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 10, 9] total 28 [2021-11-13 18:10:46,183 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [412821346] [2021-11-13 18:10:46,184 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-13 18:10:46,248 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 18:10:46,249 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-11-13 18:10:46,249 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=111, Invalid=645, Unknown=0, NotChecked=0, Total=756 [2021-11-13 18:10:46,250 INFO L87 Difference]: Start difference. First operand 36 states and 46 transitions. cyclomatic complexity: 15 Second operand has 28 states, 28 states have (on average 2.5357142857142856) internal successors, (71), 28 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) [2021-11-13 18:10:47,597 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 18:10:47,597 INFO L93 Difference]: Finished difference Result 91 states and 115 transitions. [2021-11-13 18:10:47,599 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-11-13 18:10:47,600 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 91 states and 115 transitions. [2021-11-13 18:10:47,601 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 6 [2021-11-13 18:10:47,602 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 91 states to 91 states and 115 transitions. [2021-11-13 18:10:47,602 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 39 [2021-11-13 18:10:47,602 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 39 [2021-11-13 18:10:47,602 INFO L73 IsDeterministic]: Start isDeterministic. Operand 91 states and 115 transitions. [2021-11-13 18:10:47,603 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-13 18:10:47,603 INFO L681 BuchiCegarLoop]: Abstraction has 91 states and 115 transitions. [2021-11-13 18:10:47,603 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 91 states and 115 transitions. [2021-11-13 18:10:47,606 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 91 to 69. [2021-11-13 18:10:47,607 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 69 states, 69 states have (on average 1.2753623188405796) internal successors, (88), 68 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 18:10:47,607 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 69 states and 88 transitions. [2021-11-13 18:10:47,607 INFO L704 BuchiCegarLoop]: Abstraction has 69 states and 88 transitions. [2021-11-13 18:10:47,607 INFO L587 BuchiCegarLoop]: Abstraction has 69 states and 88 transitions. [2021-11-13 18:10:47,608 INFO L425 BuchiCegarLoop]: ======== Iteration 12============ [2021-11-13 18:10:47,608 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 69 states and 88 transitions. [2021-11-13 18:10:47,608 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2021-11-13 18:10:47,608 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-13 18:10:47,608 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-13 18:10:47,609 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 18:10:47,609 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-11-13 18:10:47,609 INFO L791 eck$LassoCheckResult]: Stem: 2470#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#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(6);call write~init~int(115, #t~string1.base, #t~string1.offset, 1);call write~init~int(101, #t~string1.base, 1 + #t~string1.offset, 1);call write~init~int(112, #t~string1.base, 2 + #t~string1.offset, 1);call write~init~int(46, #t~string1.base, 3 + #t~string1.offset, 1);call write~init~int(99, #t~string1.base, 4 + #t~string1.offset, 1);call write~init~int(0, #t~string1.base, 5 + #t~string1.offset, 1);~N~0 := 0; 2471#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet7#1, main_#t~ret8#1, main_#t~mem9#1, main_#t~mem10#1, main_#t~ret11#1, main_#t~mem12#1, main_#t~mem14#1, main_#t~post13#1, main_~i~1#1, main_#t~ret15#1, main_~#x~0#1.base, main_~#x~0#1.offset, main_~temp~0#1, main_~ret~1#1, main_~ret2~0#1, main_~ret5~0#1;~N~0 := main_#t~nondet7#1;havoc main_#t~nondet7#1; 2486#L34 assume ~N~0 > 1;call main_~#x~0#1.base, main_~#x~0#1.offset := #Ultimate.allocOnStack(4 * ~N~0);havoc main_~temp~0#1;havoc main_~ret~1#1;havoc main_~ret2~0#1;havoc main_~ret5~0#1;assume { :begin_inline_sep } true;sep_#in~x#1.base, sep_#in~x#1.offset := main_~#x~0#1.base, main_~#x~0#1.offset;havoc sep_#res#1;havoc sep_#t~mem4#1, sep_#t~post5#1, sep_#t~post6#1, sep_#t~post3#1, sep_~i~0#1, sep_~x#1.base, sep_~x#1.offset, sep_~ret~0#1;sep_~x#1.base, sep_~x#1.offset := sep_#in~x#1.base, sep_#in~x#1.offset;sep_~ret~0#1 := 0;sep_~i~0#1 := 0; 2491#L20-3 assume !!(sep_~i~0#1 < ~N~0);call sep_#t~mem4#1 := read~int(sep_~x#1.base, sep_~x#1.offset + 4 * sep_~i~0#1, 4); 2492#L22 assume 0 == (if sep_#t~mem4#1 < 0 && 0 != sep_#t~mem4#1 % 2 then sep_#t~mem4#1 % 2 - 2 else sep_#t~mem4#1 % 2);havoc sep_#t~mem4#1;sep_#t~post5#1 := sep_~ret~0#1;sep_~ret~0#1 := 1 + sep_#t~post5#1;havoc sep_#t~post5#1; 2534#L20-2 sep_#t~post3#1 := sep_~i~0#1;sep_~i~0#1 := 1 + sep_#t~post3#1;havoc sep_#t~post3#1; 2531#L20-3 assume !!(sep_~i~0#1 < ~N~0);call sep_#t~mem4#1 := read~int(sep_~x#1.base, sep_~x#1.offset + 4 * sep_~i~0#1, 4); 2530#L22 assume 0 == (if sep_#t~mem4#1 < 0 && 0 != sep_#t~mem4#1 % 2 then sep_#t~mem4#1 % 2 - 2 else sep_#t~mem4#1 % 2);havoc sep_#t~mem4#1;sep_#t~post5#1 := sep_~ret~0#1;sep_~ret~0#1 := 1 + sep_#t~post5#1;havoc sep_#t~post5#1; 2528#L20-2 sep_#t~post3#1 := sep_~i~0#1;sep_~i~0#1 := 1 + sep_#t~post3#1;havoc sep_#t~post3#1; 2524#L20-3 assume !(sep_~i~0#1 < ~N~0); 2522#L20-4 sep_#res#1 := (if sep_~ret~0#1 % 4294967296 <= 2147483647 then sep_~ret~0#1 % 4294967296 else sep_~ret~0#1 % 4294967296 - 4294967296); 2520#L27 main_#t~ret8#1 := sep_#res#1;assume { :end_inline_sep } true;main_~ret~1#1 := main_#t~ret8#1;havoc main_#t~ret8#1;call main_#t~mem9#1 := read~int(main_~#x~0#1.base, main_~#x~0#1.offset, 4);main_~temp~0#1 := main_#t~mem9#1;havoc main_#t~mem9#1;call main_#t~mem10#1 := read~int(main_~#x~0#1.base, 4 + main_~#x~0#1.offset, 4);call write~int(main_#t~mem10#1, main_~#x~0#1.base, main_~#x~0#1.offset, 4);havoc main_#t~mem10#1;call write~int(main_~temp~0#1, main_~#x~0#1.base, 4 + main_~#x~0#1.offset, 4);assume { :begin_inline_sep } true;sep_#in~x#1.base, sep_#in~x#1.offset := main_~#x~0#1.base, main_~#x~0#1.offset;havoc sep_#res#1;havoc sep_#t~mem4#1, sep_#t~post5#1, sep_#t~post6#1, sep_#t~post3#1, sep_~i~0#1, sep_~x#1.base, sep_~x#1.offset, sep_~ret~0#1;sep_~x#1.base, sep_~x#1.offset := sep_#in~x#1.base, sep_#in~x#1.offset;sep_~ret~0#1 := 0;sep_~i~0#1 := 0; 2505#L20-8 assume !!(sep_~i~0#1 < ~N~0);call sep_#t~mem4#1 := read~int(sep_~x#1.base, sep_~x#1.offset + 4 * sep_~i~0#1, 4); 2506#L22-2 assume 0 == (if sep_#t~mem4#1 < 0 && 0 != sep_#t~mem4#1 % 2 then sep_#t~mem4#1 % 2 - 2 else sep_#t~mem4#1 % 2);havoc sep_#t~mem4#1;sep_#t~post5#1 := sep_~ret~0#1;sep_~ret~0#1 := 1 + sep_#t~post5#1;havoc sep_#t~post5#1; 2519#L20-7 sep_#t~post3#1 := sep_~i~0#1;sep_~i~0#1 := 1 + sep_#t~post3#1;havoc sep_#t~post3#1; 2518#L20-8 assume !!(sep_~i~0#1 < ~N~0);call sep_#t~mem4#1 := read~int(sep_~x#1.base, sep_~x#1.offset + 4 * sep_~i~0#1, 4); 2516#L22-2 assume !(0 == (if sep_#t~mem4#1 < 0 && 0 != sep_#t~mem4#1 % 2 then sep_#t~mem4#1 % 2 - 2 else sep_#t~mem4#1 % 2));havoc sep_#t~mem4#1;sep_#t~post6#1 := sep_~ret~0#1;sep_~ret~0#1 := sep_#t~post6#1 - 1;havoc sep_#t~post6#1; 2517#L20-7 sep_#t~post3#1 := sep_~i~0#1;sep_~i~0#1 := 1 + sep_#t~post3#1;havoc sep_#t~post3#1; 2515#L20-8 assume !(sep_~i~0#1 < ~N~0); 2514#L20-9 sep_#res#1 := (if sep_~ret~0#1 % 4294967296 <= 2147483647 then sep_~ret~0#1 % 4294967296 else sep_~ret~0#1 % 4294967296 - 4294967296); 2513#L27-1 main_#t~ret11#1 := sep_#res#1;assume { :end_inline_sep } true;main_~ret2~0#1 := main_#t~ret11#1;havoc main_#t~ret11#1;call main_#t~mem12#1 := read~int(main_~#x~0#1.base, main_~#x~0#1.offset, 4);main_~temp~0#1 := main_#t~mem12#1;havoc main_#t~mem12#1;main_~i~1#1 := 0; 2512#L46-3 assume !!(main_~i~1#1 < ~N~0 - 1);call main_#t~mem14#1 := read~int(main_~#x~0#1.base, main_~#x~0#1.offset + 4 * (1 + main_~i~1#1), 4);call write~int(main_#t~mem14#1, main_~#x~0#1.base, main_~#x~0#1.offset + 4 * main_~i~1#1, 4);havoc main_#t~mem14#1; 2511#L46-2 main_#t~post13#1 := main_~i~1#1;main_~i~1#1 := 1 + main_#t~post13#1;havoc main_#t~post13#1; 2510#L46-3 assume !(main_~i~1#1 < ~N~0 - 1); 2482#L46-4 call write~int(main_~temp~0#1, main_~#x~0#1.base, main_~#x~0#1.offset + 4 * (~N~0 - 1), 4);assume { :begin_inline_sep } true;sep_#in~x#1.base, sep_#in~x#1.offset := main_~#x~0#1.base, main_~#x~0#1.offset;havoc sep_#res#1;havoc sep_#t~mem4#1, sep_#t~post5#1, sep_#t~post6#1, sep_#t~post3#1, sep_~i~0#1, sep_~x#1.base, sep_~x#1.offset, sep_~ret~0#1;sep_~x#1.base, sep_~x#1.offset := sep_#in~x#1.base, sep_#in~x#1.offset;sep_~ret~0#1 := 0;sep_~i~0#1 := 0; 2483#L20-13 [2021-11-13 18:10:47,610 INFO L793 eck$LassoCheckResult]: Loop: 2483#L20-13 assume !!(sep_~i~0#1 < ~N~0);call sep_#t~mem4#1 := read~int(sep_~x#1.base, sep_~x#1.offset + 4 * sep_~i~0#1, 4); 2499#L22-4 assume 0 == (if sep_#t~mem4#1 < 0 && 0 != sep_#t~mem4#1 % 2 then sep_#t~mem4#1 % 2 - 2 else sep_#t~mem4#1 % 2);havoc sep_#t~mem4#1;sep_#t~post5#1 := sep_~ret~0#1;sep_~ret~0#1 := 1 + sep_#t~post5#1;havoc sep_#t~post5#1; 2485#L20-12 sep_#t~post3#1 := sep_~i~0#1;sep_~i~0#1 := 1 + sep_#t~post3#1;havoc sep_#t~post3#1; 2483#L20-13 [2021-11-13 18:10:47,610 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:10:47,610 INFO L85 PathProgramCache]: Analyzing trace with hash 1953404899, now seen corresponding path program 1 times [2021-11-13 18:10:47,610 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 18:10:47,610 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [91019249] [2021-11-13 18:10:47,610 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:10:47,610 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 18:10:47,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:10:47,962 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 3 proven. 7 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-13 18:10:47,962 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 18:10:47,963 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [91019249] [2021-11-13 18:10:47,963 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [91019249] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-13 18:10:47,963 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [841431890] [2021-11-13 18:10:47,963 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:10:47,963 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-13 18:10:47,963 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3790920e-7321-45ee-9abd-52e221d3c57d/bin/uautomizer-YU5uOKAj3y/z3 [2021-11-13 18:10:47,964 INFO L229 MonitoredProcess]: Starting monitored process 56 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3790920e-7321-45ee-9abd-52e221d3c57d/bin/uautomizer-YU5uOKAj3y/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-13 18:10:47,981 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3790920e-7321-45ee-9abd-52e221d3c57d/bin/uautomizer-YU5uOKAj3y/z3 -smt2 -in SMTLIB2_COMPLIANT=true (56)] Waiting until timeout for monitored process [2021-11-13 18:10:48,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:10:48,024 INFO L263 TraceCheckSpWp]: Trace formula consists of 179 conjuncts, 36 conjunts are in the unsatisfiable core [2021-11-13 18:10:48,026 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 18:10:48,137 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 18:10:48,138 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 38 treesize of output 22 [2021-11-13 18:10:48,228 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 11 [2021-11-13 18:10:48,261 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 3 proven. 5 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-11-13 18:10:48,262 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 18:10:48,435 INFO L354 Elim1Store]: treesize reduction 4, result has 73.3 percent of original size [2021-11-13 18:10:48,436 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 30 treesize of output 25 [2021-11-13 18:10:48,479 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 4 proven. 4 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-11-13 18:10:48,479 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [841431890] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-13 18:10:48,479 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-13 18:10:48,479 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 8, 8] total 18 [2021-11-13 18:10:48,479 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [958532428] [2021-11-13 18:10:48,479 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-13 18:10:48,480 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-11-13 18:10:48,480 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:10:48,480 INFO L85 PathProgramCache]: Analyzing trace with hash 98408, now seen corresponding path program 3 times [2021-11-13 18:10:48,480 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 18:10:48,480 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1679234903] [2021-11-13 18:10:48,481 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:10:48,481 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 18:10:48,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-13 18:10:48,485 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-13 18:10:48,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-13 18:10:48,489 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-13 18:10:48,542 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 18:10:48,542 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-11-13 18:10:48,542 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=250, Unknown=0, NotChecked=0, Total=306 [2021-11-13 18:10:48,543 INFO L87 Difference]: Start difference. First operand 69 states and 88 transitions. cyclomatic complexity: 27 Second operand has 18 states, 18 states have (on average 2.5555555555555554) internal successors, (46), 18 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 18:10:49,140 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 18:10:49,140 INFO L93 Difference]: Finished difference Result 97 states and 122 transitions. [2021-11-13 18:10:49,140 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-11-13 18:10:49,141 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 97 states and 122 transitions. [2021-11-13 18:10:49,142 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 6 [2021-11-13 18:10:49,143 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 97 states to 97 states and 122 transitions. [2021-11-13 18:10:49,143 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 42 [2021-11-13 18:10:49,144 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 42 [2021-11-13 18:10:49,144 INFO L73 IsDeterministic]: Start isDeterministic. Operand 97 states and 122 transitions. [2021-11-13 18:10:49,144 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-13 18:10:49,145 INFO L681 BuchiCegarLoop]: Abstraction has 97 states and 122 transitions. [2021-11-13 18:10:49,145 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 97 states and 122 transitions. [2021-11-13 18:10:49,148 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 97 to 70. [2021-11-13 18:10:49,148 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 70 states, 70 states have (on average 1.2714285714285714) internal successors, (89), 69 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 18:10:49,149 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 70 states and 89 transitions. [2021-11-13 18:10:49,149 INFO L704 BuchiCegarLoop]: Abstraction has 70 states and 89 transitions. [2021-11-13 18:10:49,149 INFO L587 BuchiCegarLoop]: Abstraction has 70 states and 89 transitions. [2021-11-13 18:10:49,150 INFO L425 BuchiCegarLoop]: ======== Iteration 13============ [2021-11-13 18:10:49,150 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 70 states and 89 transitions. [2021-11-13 18:10:49,150 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2021-11-13 18:10:49,151 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-13 18:10:49,151 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-13 18:10:49,151 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 18:10:49,152 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-11-13 18:10:49,152 INFO L791 eck$LassoCheckResult]: Stem: 2819#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#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(6);call write~init~int(115, #t~string1.base, #t~string1.offset, 1);call write~init~int(101, #t~string1.base, 1 + #t~string1.offset, 1);call write~init~int(112, #t~string1.base, 2 + #t~string1.offset, 1);call write~init~int(46, #t~string1.base, 3 + #t~string1.offset, 1);call write~init~int(99, #t~string1.base, 4 + #t~string1.offset, 1);call write~init~int(0, #t~string1.base, 5 + #t~string1.offset, 1);~N~0 := 0; 2820#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet7#1, main_#t~ret8#1, main_#t~mem9#1, main_#t~mem10#1, main_#t~ret11#1, main_#t~mem12#1, main_#t~mem14#1, main_#t~post13#1, main_~i~1#1, main_#t~ret15#1, main_~#x~0#1.base, main_~#x~0#1.offset, main_~temp~0#1, main_~ret~1#1, main_~ret2~0#1, main_~ret5~0#1;~N~0 := main_#t~nondet7#1;havoc main_#t~nondet7#1; 2835#L34 assume ~N~0 > 1;call main_~#x~0#1.base, main_~#x~0#1.offset := #Ultimate.allocOnStack(4 * ~N~0);havoc main_~temp~0#1;havoc main_~ret~1#1;havoc main_~ret2~0#1;havoc main_~ret5~0#1;assume { :begin_inline_sep } true;sep_#in~x#1.base, sep_#in~x#1.offset := main_~#x~0#1.base, main_~#x~0#1.offset;havoc sep_#res#1;havoc sep_#t~mem4#1, sep_#t~post5#1, sep_#t~post6#1, sep_#t~post3#1, sep_~i~0#1, sep_~x#1.base, sep_~x#1.offset, sep_~ret~0#1;sep_~x#1.base, sep_~x#1.offset := sep_#in~x#1.base, sep_#in~x#1.offset;sep_~ret~0#1 := 0;sep_~i~0#1 := 0; 2841#L20-3 assume !!(sep_~i~0#1 < ~N~0);call sep_#t~mem4#1 := read~int(sep_~x#1.base, sep_~x#1.offset + 4 * sep_~i~0#1, 4); 2842#L22 assume 0 == (if sep_#t~mem4#1 < 0 && 0 != sep_#t~mem4#1 % 2 then sep_#t~mem4#1 % 2 - 2 else sep_#t~mem4#1 % 2);havoc sep_#t~mem4#1;sep_#t~post5#1 := sep_~ret~0#1;sep_~ret~0#1 := 1 + sep_#t~post5#1;havoc sep_#t~post5#1; 2845#L20-2 sep_#t~post3#1 := sep_~i~0#1;sep_~i~0#1 := 1 + sep_#t~post3#1;havoc sep_#t~post3#1; 2843#L20-3 assume !!(sep_~i~0#1 < ~N~0);call sep_#t~mem4#1 := read~int(sep_~x#1.base, sep_~x#1.offset + 4 * sep_~i~0#1, 4); 2844#L22 assume 0 == (if sep_#t~mem4#1 < 0 && 0 != sep_#t~mem4#1 % 2 then sep_#t~mem4#1 % 2 - 2 else sep_#t~mem4#1 % 2);havoc sep_#t~mem4#1;sep_#t~post5#1 := sep_~ret~0#1;sep_~ret~0#1 := 1 + sep_#t~post5#1;havoc sep_#t~post5#1; 2888#L20-2 sep_#t~post3#1 := sep_~i~0#1;sep_~i~0#1 := 1 + sep_#t~post3#1;havoc sep_#t~post3#1; 2881#L20-3 assume !(sep_~i~0#1 < ~N~0); 2882#L20-4 sep_#res#1 := (if sep_~ret~0#1 % 4294967296 <= 2147483647 then sep_~ret~0#1 % 4294967296 else sep_~ret~0#1 % 4294967296 - 4294967296); 2823#L27 main_#t~ret8#1 := sep_#res#1;assume { :end_inline_sep } true;main_~ret~1#1 := main_#t~ret8#1;havoc main_#t~ret8#1;call main_#t~mem9#1 := read~int(main_~#x~0#1.base, main_~#x~0#1.offset, 4);main_~temp~0#1 := main_#t~mem9#1;havoc main_#t~mem9#1;call main_#t~mem10#1 := read~int(main_~#x~0#1.base, 4 + main_~#x~0#1.offset, 4);call write~int(main_#t~mem10#1, main_~#x~0#1.base, main_~#x~0#1.offset, 4);havoc main_#t~mem10#1;call write~int(main_~temp~0#1, main_~#x~0#1.base, 4 + main_~#x~0#1.offset, 4);assume { :begin_inline_sep } true;sep_#in~x#1.base, sep_#in~x#1.offset := main_~#x~0#1.base, main_~#x~0#1.offset;havoc sep_#res#1;havoc sep_#t~mem4#1, sep_#t~post5#1, sep_#t~post6#1, sep_#t~post3#1, sep_~i~0#1, sep_~x#1.base, sep_~x#1.offset, sep_~ret~0#1;sep_~x#1.base, sep_~x#1.offset := sep_#in~x#1.base, sep_#in~x#1.offset;sep_~ret~0#1 := 0;sep_~i~0#1 := 0; 2824#L20-8 assume !!(sep_~i~0#1 < ~N~0);call sep_#t~mem4#1 := read~int(sep_~x#1.base, sep_~x#1.offset + 4 * sep_~i~0#1, 4); 2887#L22-2 assume 0 == (if sep_#t~mem4#1 < 0 && 0 != sep_#t~mem4#1 % 2 then sep_#t~mem4#1 % 2 - 2 else sep_#t~mem4#1 % 2);havoc sep_#t~mem4#1;sep_#t~post5#1 := sep_~ret~0#1;sep_~ret~0#1 := 1 + sep_#t~post5#1;havoc sep_#t~post5#1; 2853#L20-7 sep_#t~post3#1 := sep_~i~0#1;sep_~i~0#1 := 1 + sep_#t~post3#1;havoc sep_#t~post3#1; 2827#L20-8 assume !!(sep_~i~0#1 < ~N~0);call sep_#t~mem4#1 := read~int(sep_~x#1.base, sep_~x#1.offset + 4 * sep_~i~0#1, 4); 2828#L22-2 assume 0 == (if sep_#t~mem4#1 < 0 && 0 != sep_#t~mem4#1 % 2 then sep_#t~mem4#1 % 2 - 2 else sep_#t~mem4#1 % 2);havoc sep_#t~mem4#1;sep_#t~post5#1 := sep_~ret~0#1;sep_~ret~0#1 := 1 + sep_#t~post5#1;havoc sep_#t~post5#1; 2836#L20-7 sep_#t~post3#1 := sep_~i~0#1;sep_~i~0#1 := 1 + sep_#t~post3#1;havoc sep_#t~post3#1; 2860#L20-8 assume !(sep_~i~0#1 < ~N~0); 2857#L20-9 sep_#res#1 := (if sep_~ret~0#1 % 4294967296 <= 2147483647 then sep_~ret~0#1 % 4294967296 else sep_~ret~0#1 % 4294967296 - 4294967296); 2851#L27-1 main_#t~ret11#1 := sep_#res#1;assume { :end_inline_sep } true;main_~ret2~0#1 := main_#t~ret11#1;havoc main_#t~ret11#1;call main_#t~mem12#1 := read~int(main_~#x~0#1.base, main_~#x~0#1.offset, 4);main_~temp~0#1 := main_#t~mem12#1;havoc main_#t~mem12#1;main_~i~1#1 := 0; 2852#L46-3 assume !!(main_~i~1#1 < ~N~0 - 1);call main_#t~mem14#1 := read~int(main_~#x~0#1.base, main_~#x~0#1.offset + 4 * (1 + main_~i~1#1), 4);call write~int(main_#t~mem14#1, main_~#x~0#1.base, main_~#x~0#1.offset + 4 * main_~i~1#1, 4);havoc main_#t~mem14#1; 2856#L46-2 main_#t~post13#1 := main_~i~1#1;main_~i~1#1 := 1 + main_#t~post13#1;havoc main_#t~post13#1; 2855#L46-3 assume !(main_~i~1#1 < ~N~0 - 1); 2831#L46-4 call write~int(main_~temp~0#1, main_~#x~0#1.base, main_~#x~0#1.offset + 4 * (~N~0 - 1), 4);assume { :begin_inline_sep } true;sep_#in~x#1.base, sep_#in~x#1.offset := main_~#x~0#1.base, main_~#x~0#1.offset;havoc sep_#res#1;havoc sep_#t~mem4#1, sep_#t~post5#1, sep_#t~post6#1, sep_#t~post3#1, sep_~i~0#1, sep_~x#1.base, sep_~x#1.offset, sep_~ret~0#1;sep_~x#1.base, sep_~x#1.offset := sep_#in~x#1.base, sep_#in~x#1.offset;sep_~ret~0#1 := 0;sep_~i~0#1 := 0; 2832#L20-13 [2021-11-13 18:10:49,152 INFO L793 eck$LassoCheckResult]: Loop: 2832#L20-13 assume !!(sep_~i~0#1 < ~N~0);call sep_#t~mem4#1 := read~int(sep_~x#1.base, sep_~x#1.offset + 4 * sep_~i~0#1, 4); 2850#L22-4 assume 0 == (if sep_#t~mem4#1 < 0 && 0 != sep_#t~mem4#1 % 2 then sep_#t~mem4#1 % 2 - 2 else sep_#t~mem4#1 % 2);havoc sep_#t~mem4#1;sep_#t~post5#1 := sep_~ret~0#1;sep_~ret~0#1 := 1 + sep_#t~post5#1;havoc sep_#t~post5#1; 2834#L20-12 sep_#t~post3#1 := sep_~i~0#1;sep_~i~0#1 := 1 + sep_#t~post3#1;havoc sep_#t~post3#1; 2832#L20-13 [2021-11-13 18:10:49,152 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:10:49,153 INFO L85 PathProgramCache]: Analyzing trace with hash 1273346529, now seen corresponding path program 1 times [2021-11-13 18:10:49,153 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 18:10:49,153 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1008504580] [2021-11-13 18:10:49,153 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:10:49,153 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 18:10:49,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-13 18:10:49,181 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-13 18:10:49,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-13 18:10:49,211 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-13 18:10:49,211 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:10:49,211 INFO L85 PathProgramCache]: Analyzing trace with hash 98408, now seen corresponding path program 4 times [2021-11-13 18:10:49,211 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 18:10:49,212 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1087220670] [2021-11-13 18:10:49,212 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:10:49,212 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 18:10:49,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-13 18:10:49,215 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-13 18:10:49,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-13 18:10:49,219 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-13 18:10:49,219 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:10:49,219 INFO L85 PathProgramCache]: Analyzing trace with hash 1115355784, now seen corresponding path program 1 times [2021-11-13 18:10:49,219 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 18:10:49,220 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [28652448] [2021-11-13 18:10:49,220 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:10:49,220 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 18:10:49,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-13 18:10:49,251 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-13 18:10:49,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-13 18:10:49,281 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-13 18:10:51,587 INFO L210 LassoAnalysis]: Preferences: [2021-11-13 18:10:51,587 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-11-13 18:10:51,587 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-11-13 18:10:51,587 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-11-13 18:10:51,587 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-11-13 18:10:51,588 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-13 18:10:51,588 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-11-13 18:10:51,588 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-11-13 18:10:51,588 INFO L133 ssoRankerPreferences]: Filename of dumped script: sep.i_Iteration13_Lasso [2021-11-13 18:10:51,588 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-11-13 18:10:51,588 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-11-13 18:10:51,590 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-13 18:10:51,592 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-13 18:10:51,594 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-13 18:10:51,597 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-13 18:10:51,599 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-13 18:10:51,602 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-13 18:10:51,604 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-13 18:10:51,605 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-13 18:10:51,617 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-13 18:10:51,619 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-13 18:10:51,620 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-13 18:10:51,622 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-13 18:10:51,623 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-13 18:10:51,625 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-13 18:10:51,627 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-13 18:10:51,629 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-13 18:10:51,632 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-13 18:10:51,634 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-13 18:10:51,635 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-13 18:10:51,638 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-13 18:10:51,641 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-13 18:10:51,642 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-13 18:10:52,779 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-11-13 18:10:52,779 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-11-13 18:10:52,780 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-13 18:10:52,780 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3790920e-7321-45ee-9abd-52e221d3c57d/bin/uautomizer-YU5uOKAj3y/z3 [2021-11-13 18:10:52,792 INFO L229 MonitoredProcess]: Starting monitored process 57 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3790920e-7321-45ee-9abd-52e221d3c57d/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-13 18:10:52,793 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3790920e-7321-45ee-9abd-52e221d3c57d/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (57)] Waiting until timeout for monitored process [2021-11-13 18:10:52,794 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-13 18:10:52,801 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-13 18:10:52,801 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-13 18:10:52,801 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-13 18:10:52,801 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-13 18:10:52,801 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-13 18:10:52,802 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-13 18:10:52,802 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-13 18:10:52,805 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-13 18:10:52,825 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3790920e-7321-45ee-9abd-52e221d3c57d/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (57)] Forceful destruction successful, exit code 0 [2021-11-13 18:10:52,825 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-13 18:10:52,826 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3790920e-7321-45ee-9abd-52e221d3c57d/bin/uautomizer-YU5uOKAj3y/z3 [2021-11-13 18:10:52,826 INFO L229 MonitoredProcess]: Starting monitored process 58 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3790920e-7321-45ee-9abd-52e221d3c57d/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-13 18:10:52,828 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3790920e-7321-45ee-9abd-52e221d3c57d/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (58)] Waiting until timeout for monitored process [2021-11-13 18:10:52,828 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-13 18:10:52,835 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-13 18:10:52,835 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-13 18:10:52,835 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-13 18:10:52,835 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-13 18:10:52,835 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-13 18:10:52,835 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-13 18:10:52,835 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-13 18:10:52,836 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-13 18:10:52,856 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3790920e-7321-45ee-9abd-52e221d3c57d/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (58)] Forceful destruction successful, exit code 0 [2021-11-13 18:10:52,856 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-13 18:10:52,856 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3790920e-7321-45ee-9abd-52e221d3c57d/bin/uautomizer-YU5uOKAj3y/z3 [2021-11-13 18:10:52,857 INFO L229 MonitoredProcess]: Starting monitored process 59 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3790920e-7321-45ee-9abd-52e221d3c57d/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-13 18:10:52,857 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3790920e-7321-45ee-9abd-52e221d3c57d/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (59)] Waiting until timeout for monitored process [2021-11-13 18:10:52,858 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-13 18:10:52,865 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-13 18:10:52,865 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-13 18:10:52,865 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-13 18:10:52,865 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-13 18:10:52,865 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-13 18:10:52,865 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-13 18:10:52,865 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-13 18:10:52,866 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-13 18:10:52,886 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3790920e-7321-45ee-9abd-52e221d3c57d/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (59)] Ended with exit code 0 [2021-11-13 18:10:52,887 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-13 18:10:52,887 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3790920e-7321-45ee-9abd-52e221d3c57d/bin/uautomizer-YU5uOKAj3y/z3 [2021-11-13 18:10:52,888 INFO L229 MonitoredProcess]: Starting monitored process 60 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3790920e-7321-45ee-9abd-52e221d3c57d/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-13 18:10:52,888 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3790920e-7321-45ee-9abd-52e221d3c57d/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (60)] Waiting until timeout for monitored process [2021-11-13 18:10:52,889 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-13 18:10:52,896 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-13 18:10:52,896 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-13 18:10:52,896 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-13 18:10:52,896 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-13 18:10:52,897 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-11-13 18:10:52,897 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-11-13 18:10:52,899 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-13 18:10:52,918 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3790920e-7321-45ee-9abd-52e221d3c57d/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (60)] Ended with exit code 0 [2021-11-13 18:10:52,919 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-13 18:10:52,919 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3790920e-7321-45ee-9abd-52e221d3c57d/bin/uautomizer-YU5uOKAj3y/z3 [2021-11-13 18:10:52,919 INFO L229 MonitoredProcess]: Starting monitored process 61 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3790920e-7321-45ee-9abd-52e221d3c57d/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-13 18:10:52,920 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3790920e-7321-45ee-9abd-52e221d3c57d/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (61)] Waiting until timeout for monitored process [2021-11-13 18:10:52,920 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-13 18:10:52,927 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-13 18:10:52,927 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-13 18:10:52,928 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-13 18:10:52,928 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-13 18:10:52,928 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-13 18:10:52,928 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-13 18:10:52,928 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-13 18:10:52,929 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-13 18:10:52,948 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3790920e-7321-45ee-9abd-52e221d3c57d/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (61)] Forceful destruction successful, exit code 0 [2021-11-13 18:10:52,949 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-13 18:10:52,949 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3790920e-7321-45ee-9abd-52e221d3c57d/bin/uautomizer-YU5uOKAj3y/z3 [2021-11-13 18:10:52,950 INFO L229 MonitoredProcess]: Starting monitored process 62 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3790920e-7321-45ee-9abd-52e221d3c57d/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-13 18:10:52,951 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3790920e-7321-45ee-9abd-52e221d3c57d/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (62)] Waiting until timeout for monitored process [2021-11-13 18:10:52,952 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-13 18:10:52,959 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-13 18:10:52,959 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-13 18:10:52,959 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-13 18:10:52,959 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-13 18:10:52,960 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-11-13 18:10:52,960 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-11-13 18:10:52,962 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-13 18:10:52,982 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3790920e-7321-45ee-9abd-52e221d3c57d/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (62)] Forceful destruction successful, exit code 0 [2021-11-13 18:10:52,982 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-13 18:10:52,982 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3790920e-7321-45ee-9abd-52e221d3c57d/bin/uautomizer-YU5uOKAj3y/z3 [2021-11-13 18:10:52,983 INFO L229 MonitoredProcess]: Starting monitored process 63 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3790920e-7321-45ee-9abd-52e221d3c57d/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-13 18:10:52,984 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3790920e-7321-45ee-9abd-52e221d3c57d/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (63)] Waiting until timeout for monitored process [2021-11-13 18:10:52,984 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-13 18:10:52,991 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-13 18:10:52,991 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-13 18:10:52,992 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-13 18:10:52,992 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-13 18:10:52,992 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-13 18:10:52,992 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-13 18:10:52,992 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-13 18:10:52,993 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-13 18:10:53,012 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3790920e-7321-45ee-9abd-52e221d3c57d/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (63)] Forceful destruction successful, exit code 0 [2021-11-13 18:10:53,013 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-13 18:10:53,013 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3790920e-7321-45ee-9abd-52e221d3c57d/bin/uautomizer-YU5uOKAj3y/z3 [2021-11-13 18:10:53,013 INFO L229 MonitoredProcess]: Starting monitored process 64 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3790920e-7321-45ee-9abd-52e221d3c57d/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-13 18:10:53,014 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3790920e-7321-45ee-9abd-52e221d3c57d/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (64)] Waiting until timeout for monitored process [2021-11-13 18:10:53,015 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-13 18:10:53,021 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-13 18:10:53,022 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-13 18:10:53,022 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-13 18:10:53,022 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-13 18:10:53,023 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-11-13 18:10:53,023 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-11-13 18:10:53,025 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-13 18:10:53,045 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3790920e-7321-45ee-9abd-52e221d3c57d/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (64)] Forceful destruction successful, exit code 0 [2021-11-13 18:10:53,045 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-13 18:10:53,045 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3790920e-7321-45ee-9abd-52e221d3c57d/bin/uautomizer-YU5uOKAj3y/z3 [2021-11-13 18:10:53,046 INFO L229 MonitoredProcess]: Starting monitored process 65 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3790920e-7321-45ee-9abd-52e221d3c57d/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-13 18:10:53,046 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3790920e-7321-45ee-9abd-52e221d3c57d/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (65)] Waiting until timeout for monitored process [2021-11-13 18:10:53,047 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-13 18:10:53,054 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-13 18:10:53,054 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-13 18:10:53,054 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-13 18:10:53,054 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-13 18:10:53,054 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-13 18:10:53,054 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-13 18:10:53,054 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-13 18:10:53,055 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-13 18:10:53,075 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3790920e-7321-45ee-9abd-52e221d3c57d/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (65)] Ended with exit code 0 [2021-11-13 18:10:53,075 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-13 18:10:53,075 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3790920e-7321-45ee-9abd-52e221d3c57d/bin/uautomizer-YU5uOKAj3y/z3 [2021-11-13 18:10:53,076 INFO L229 MonitoredProcess]: Starting monitored process 66 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3790920e-7321-45ee-9abd-52e221d3c57d/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-13 18:10:53,077 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3790920e-7321-45ee-9abd-52e221d3c57d/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (66)] Waiting until timeout for monitored process [2021-11-13 18:10:53,077 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-13 18:10:53,084 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-13 18:10:53,084 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-13 18:10:53,084 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-13 18:10:53,084 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-13 18:10:53,084 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-13 18:10:53,085 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-13 18:10:53,085 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-13 18:10:53,086 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-13 18:10:53,105 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3790920e-7321-45ee-9abd-52e221d3c57d/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (66)] Forceful destruction successful, exit code 0 [2021-11-13 18:10:53,105 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-13 18:10:53,105 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3790920e-7321-45ee-9abd-52e221d3c57d/bin/uautomizer-YU5uOKAj3y/z3 [2021-11-13 18:10:53,106 INFO L229 MonitoredProcess]: Starting monitored process 67 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3790920e-7321-45ee-9abd-52e221d3c57d/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-13 18:10:53,106 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3790920e-7321-45ee-9abd-52e221d3c57d/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (67)] Waiting until timeout for monitored process [2021-11-13 18:10:53,107 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-13 18:10:53,114 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-13 18:10:53,114 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-13 18:10:53,114 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-13 18:10:53,114 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-13 18:10:53,114 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-13 18:10:53,114 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-13 18:10:53,114 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-13 18:10:53,115 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-13 18:10:53,136 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3790920e-7321-45ee-9abd-52e221d3c57d/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (67)] Ended with exit code 0 [2021-11-13 18:10:53,136 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-13 18:10:53,137 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3790920e-7321-45ee-9abd-52e221d3c57d/bin/uautomizer-YU5uOKAj3y/z3 [2021-11-13 18:10:53,143 INFO L229 MonitoredProcess]: Starting monitored process 68 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3790920e-7321-45ee-9abd-52e221d3c57d/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-13 18:10:53,145 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3790920e-7321-45ee-9abd-52e221d3c57d/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (68)] Waiting until timeout for monitored process [2021-11-13 18:10:53,146 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-13 18:10:53,154 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-13 18:10:53,154 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-13 18:10:53,154 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-13 18:10:53,154 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-13 18:10:53,154 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-13 18:10:53,154 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-13 18:10:53,154 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-13 18:10:53,155 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-13 18:10:53,175 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3790920e-7321-45ee-9abd-52e221d3c57d/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (68)] Ended with exit code 0 [2021-11-13 18:10:53,175 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-13 18:10:53,175 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3790920e-7321-45ee-9abd-52e221d3c57d/bin/uautomizer-YU5uOKAj3y/z3 [2021-11-13 18:10:53,176 INFO L229 MonitoredProcess]: Starting monitored process 69 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3790920e-7321-45ee-9abd-52e221d3c57d/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-13 18:10:53,177 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3790920e-7321-45ee-9abd-52e221d3c57d/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (69)] Waiting until timeout for monitored process [2021-11-13 18:10:53,177 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-13 18:10:53,184 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-13 18:10:53,184 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-13 18:10:53,184 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-13 18:10:53,184 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-13 18:10:53,184 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-13 18:10:53,185 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-13 18:10:53,185 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-13 18:10:53,186 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-13 18:10:53,206 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3790920e-7321-45ee-9abd-52e221d3c57d/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (69)] Ended with exit code 0 [2021-11-13 18:10:53,206 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-13 18:10:53,206 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3790920e-7321-45ee-9abd-52e221d3c57d/bin/uautomizer-YU5uOKAj3y/z3 [2021-11-13 18:10:53,207 INFO L229 MonitoredProcess]: Starting monitored process 70 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3790920e-7321-45ee-9abd-52e221d3c57d/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-13 18:10:53,207 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3790920e-7321-45ee-9abd-52e221d3c57d/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (70)] Waiting until timeout for monitored process [2021-11-13 18:10:53,208 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-13 18:10:53,215 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-13 18:10:53,215 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-13 18:10:53,215 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-13 18:10:53,215 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-13 18:10:53,216 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-11-13 18:10:53,217 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-11-13 18:10:53,220 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-13 18:10:53,240 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3790920e-7321-45ee-9abd-52e221d3c57d/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (70)] Ended with exit code 0 [2021-11-13 18:10:53,240 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-13 18:10:53,240 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3790920e-7321-45ee-9abd-52e221d3c57d/bin/uautomizer-YU5uOKAj3y/z3 [2021-11-13 18:10:53,241 INFO L229 MonitoredProcess]: Starting monitored process 71 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3790920e-7321-45ee-9abd-52e221d3c57d/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-13 18:10:53,243 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3790920e-7321-45ee-9abd-52e221d3c57d/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (71)] Waiting until timeout for monitored process [2021-11-13 18:10:53,244 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-13 18:10:53,251 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-13 18:10:53,251 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-13 18:10:53,251 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-13 18:10:53,251 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-13 18:10:53,251 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-13 18:10:53,251 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-13 18:10:53,251 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-13 18:10:53,252 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-13 18:10:53,272 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3790920e-7321-45ee-9abd-52e221d3c57d/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (71)] Ended with exit code 0 [2021-11-13 18:10:53,272 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-13 18:10:53,272 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3790920e-7321-45ee-9abd-52e221d3c57d/bin/uautomizer-YU5uOKAj3y/z3 [2021-11-13 18:10:53,273 INFO L229 MonitoredProcess]: Starting monitored process 72 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3790920e-7321-45ee-9abd-52e221d3c57d/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-13 18:10:53,275 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3790920e-7321-45ee-9abd-52e221d3c57d/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (72)] Waiting until timeout for monitored process [2021-11-13 18:10:53,275 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-13 18:10:53,282 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-13 18:10:53,282 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-13 18:10:53,282 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-13 18:10:53,282 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-13 18:10:53,282 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-13 18:10:53,283 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-13 18:10:53,283 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-13 18:10:53,284 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-13 18:10:53,303 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3790920e-7321-45ee-9abd-52e221d3c57d/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (72)] Ended with exit code 0 [2021-11-13 18:10:53,304 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-13 18:10:53,304 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3790920e-7321-45ee-9abd-52e221d3c57d/bin/uautomizer-YU5uOKAj3y/z3 [2021-11-13 18:10:53,304 INFO L229 MonitoredProcess]: Starting monitored process 73 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3790920e-7321-45ee-9abd-52e221d3c57d/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-13 18:10:53,305 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3790920e-7321-45ee-9abd-52e221d3c57d/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (73)] Waiting until timeout for monitored process [2021-11-13 18:10:53,305 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-13 18:10:53,312 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-13 18:10:53,313 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-13 18:10:53,313 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-13 18:10:53,313 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-13 18:10:53,313 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-13 18:10:53,313 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-13 18:10:53,313 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-13 18:10:53,314 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-13 18:10:53,334 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3790920e-7321-45ee-9abd-52e221d3c57d/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (73)] Forceful destruction successful, exit code 0 [2021-11-13 18:10:53,334 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-13 18:10:53,334 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3790920e-7321-45ee-9abd-52e221d3c57d/bin/uautomizer-YU5uOKAj3y/z3 [2021-11-13 18:10:53,336 INFO L229 MonitoredProcess]: Starting monitored process 74 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3790920e-7321-45ee-9abd-52e221d3c57d/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-13 18:10:53,337 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3790920e-7321-45ee-9abd-52e221d3c57d/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (74)] Waiting until timeout for monitored process [2021-11-13 18:10:53,337 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-13 18:10:53,344 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-13 18:10:53,344 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-13 18:10:53,344 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-13 18:10:53,344 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-13 18:10:53,344 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-13 18:10:53,345 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-13 18:10:53,345 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-13 18:10:53,346 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-13 18:10:53,366 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3790920e-7321-45ee-9abd-52e221d3c57d/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (74)] Ended with exit code 0 [2021-11-13 18:10:53,366 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-13 18:10:53,366 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3790920e-7321-45ee-9abd-52e221d3c57d/bin/uautomizer-YU5uOKAj3y/z3 [2021-11-13 18:10:53,367 INFO L229 MonitoredProcess]: Starting monitored process 75 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3790920e-7321-45ee-9abd-52e221d3c57d/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-13 18:10:53,367 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3790920e-7321-45ee-9abd-52e221d3c57d/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (75)] Waiting until timeout for monitored process [2021-11-13 18:10:53,368 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-13 18:10:53,375 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-13 18:10:53,375 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-13 18:10:53,375 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-13 18:10:53,375 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-13 18:10:53,375 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-13 18:10:53,375 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-13 18:10:53,375 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-13 18:10:53,376 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-13 18:10:53,396 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3790920e-7321-45ee-9abd-52e221d3c57d/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (75)] Forceful destruction successful, exit code 0 [2021-11-13 18:10:53,396 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-13 18:10:53,396 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3790920e-7321-45ee-9abd-52e221d3c57d/bin/uautomizer-YU5uOKAj3y/z3 [2021-11-13 18:10:53,397 INFO L229 MonitoredProcess]: Starting monitored process 76 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3790920e-7321-45ee-9abd-52e221d3c57d/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-13 18:10:53,398 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-13 18:10:53,398 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3790920e-7321-45ee-9abd-52e221d3c57d/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (76)] Waiting until timeout for monitored process [2021-11-13 18:10:53,405 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-13 18:10:53,405 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-13 18:10:53,406 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-13 18:10:53,406 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-13 18:10:53,407 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-11-13 18:10:53,407 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-11-13 18:10:53,410 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-13 18:10:53,430 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3790920e-7321-45ee-9abd-52e221d3c57d/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (76)] Forceful destruction successful, exit code 0 [2021-11-13 18:10:53,430 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-13 18:10:53,430 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3790920e-7321-45ee-9abd-52e221d3c57d/bin/uautomizer-YU5uOKAj3y/z3 [2021-11-13 18:10:53,431 INFO L229 MonitoredProcess]: Starting monitored process 77 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3790920e-7321-45ee-9abd-52e221d3c57d/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-13 18:10:53,432 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3790920e-7321-45ee-9abd-52e221d3c57d/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (77)] Waiting until timeout for monitored process [2021-11-13 18:10:53,432 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-13 18:10:53,439 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-13 18:10:53,439 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-13 18:10:53,439 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-13 18:10:53,439 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-13 18:10:53,439 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-13 18:10:53,440 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-13 18:10:53,440 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-13 18:10:53,441 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-13 18:10:53,460 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3790920e-7321-45ee-9abd-52e221d3c57d/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (77)] Ended with exit code 0 [2021-11-13 18:10:53,461 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-13 18:10:53,461 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3790920e-7321-45ee-9abd-52e221d3c57d/bin/uautomizer-YU5uOKAj3y/z3 [2021-11-13 18:10:53,463 INFO L229 MonitoredProcess]: Starting monitored process 78 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3790920e-7321-45ee-9abd-52e221d3c57d/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-13 18:10:53,464 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3790920e-7321-45ee-9abd-52e221d3c57d/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (78)] Waiting until timeout for monitored process [2021-11-13 18:10:53,464 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-13 18:10:53,471 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-13 18:10:53,472 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-13 18:10:53,472 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-13 18:10:53,472 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-13 18:10:53,474 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-11-13 18:10:53,474 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-11-13 18:10:53,478 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-13 18:10:53,498 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3790920e-7321-45ee-9abd-52e221d3c57d/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (78)] Forceful destruction successful, exit code 0 [2021-11-13 18:10:53,498 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-13 18:10:53,498 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3790920e-7321-45ee-9abd-52e221d3c57d/bin/uautomizer-YU5uOKAj3y/z3 [2021-11-13 18:10:53,499 INFO L229 MonitoredProcess]: Starting monitored process 79 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3790920e-7321-45ee-9abd-52e221d3c57d/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-13 18:10:53,500 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-13 18:10:53,504 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3790920e-7321-45ee-9abd-52e221d3c57d/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (79)] Waiting until timeout for monitored process [2021-11-13 18:10:53,507 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-13 18:10:53,507 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-13 18:10:53,508 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-13 18:10:53,508 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-13 18:10:53,508 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-13 18:10:53,508 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-13 18:10:53,508 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-13 18:10:53,513 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-13 18:10:53,533 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3790920e-7321-45ee-9abd-52e221d3c57d/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (79)] Ended with exit code 0 [2021-11-13 18:10:53,533 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-13 18:10:53,533 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3790920e-7321-45ee-9abd-52e221d3c57d/bin/uautomizer-YU5uOKAj3y/z3 [2021-11-13 18:10:53,534 INFO L229 MonitoredProcess]: Starting monitored process 80 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3790920e-7321-45ee-9abd-52e221d3c57d/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-13 18:10:53,534 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3790920e-7321-45ee-9abd-52e221d3c57d/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (80)] Waiting until timeout for monitored process [2021-11-13 18:10:53,535 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-13 18:10:53,543 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-13 18:10:53,543 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-13 18:10:53,544 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-13 18:10:53,544 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-13 18:10:53,544 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-13 18:10:53,544 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-13 18:10:53,544 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-13 18:10:53,546 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-13 18:10:53,567 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3790920e-7321-45ee-9abd-52e221d3c57d/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (80)] Ended with exit code 0 [2021-11-13 18:10:53,567 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-13 18:10:53,568 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3790920e-7321-45ee-9abd-52e221d3c57d/bin/uautomizer-YU5uOKAj3y/z3 [2021-11-13 18:10:53,568 INFO L229 MonitoredProcess]: Starting monitored process 81 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3790920e-7321-45ee-9abd-52e221d3c57d/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-13 18:10:53,569 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3790920e-7321-45ee-9abd-52e221d3c57d/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (81)] Waiting until timeout for monitored process [2021-11-13 18:10:53,569 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-13 18:10:53,577 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-13 18:10:53,577 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-13 18:10:53,577 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-13 18:10:53,577 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-13 18:10:53,578 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-11-13 18:10:53,578 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-11-13 18:10:53,580 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-13 18:10:53,601 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3790920e-7321-45ee-9abd-52e221d3c57d/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (81)] Ended with exit code 0 [2021-11-13 18:10:53,601 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-13 18:10:53,601 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3790920e-7321-45ee-9abd-52e221d3c57d/bin/uautomizer-YU5uOKAj3y/z3 [2021-11-13 18:10:53,602 INFO L229 MonitoredProcess]: Starting monitored process 82 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3790920e-7321-45ee-9abd-52e221d3c57d/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-13 18:10:53,602 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3790920e-7321-45ee-9abd-52e221d3c57d/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (82)] Waiting until timeout for monitored process [2021-11-13 18:10:53,603 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-13 18:10:53,611 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-13 18:10:53,611 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-13 18:10:53,611 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-13 18:10:53,611 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-13 18:10:53,612 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-11-13 18:10:53,612 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-11-13 18:10:53,615 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-13 18:10:53,635 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3790920e-7321-45ee-9abd-52e221d3c57d/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (82)] Ended with exit code 0 [2021-11-13 18:10:53,635 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-13 18:10:53,635 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3790920e-7321-45ee-9abd-52e221d3c57d/bin/uautomizer-YU5uOKAj3y/z3 [2021-11-13 18:10:53,636 INFO L229 MonitoredProcess]: Starting monitored process 83 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3790920e-7321-45ee-9abd-52e221d3c57d/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-13 18:10:53,637 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3790920e-7321-45ee-9abd-52e221d3c57d/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (83)] Waiting until timeout for monitored process [2021-11-13 18:10:53,637 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-13 18:10:53,644 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-13 18:10:53,644 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-13 18:10:53,645 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-13 18:10:53,645 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-13 18:10:53,645 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-11-13 18:10:53,645 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-11-13 18:10:53,647 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-13 18:10:53,667 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3790920e-7321-45ee-9abd-52e221d3c57d/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (83)] Ended with exit code 0 [2021-11-13 18:10:53,667 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-13 18:10:53,667 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3790920e-7321-45ee-9abd-52e221d3c57d/bin/uautomizer-YU5uOKAj3y/z3 [2021-11-13 18:10:53,668 INFO L229 MonitoredProcess]: Starting monitored process 84 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3790920e-7321-45ee-9abd-52e221d3c57d/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-13 18:10:53,669 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3790920e-7321-45ee-9abd-52e221d3c57d/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (84)] Waiting until timeout for monitored process [2021-11-13 18:10:53,669 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-13 18:10:53,676 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-13 18:10:53,676 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-13 18:10:53,676 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-13 18:10:53,676 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-13 18:10:53,678 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-11-13 18:10:53,678 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-11-13 18:10:53,682 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-13 18:10:53,701 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3790920e-7321-45ee-9abd-52e221d3c57d/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (84)] Ended with exit code 0 [2021-11-13 18:10:53,702 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-13 18:10:53,702 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3790920e-7321-45ee-9abd-52e221d3c57d/bin/uautomizer-YU5uOKAj3y/z3 [2021-11-13 18:10:53,702 INFO L229 MonitoredProcess]: Starting monitored process 85 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3790920e-7321-45ee-9abd-52e221d3c57d/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-13 18:10:53,703 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3790920e-7321-45ee-9abd-52e221d3c57d/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (85)] Waiting until timeout for monitored process [2021-11-13 18:10:53,704 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-13 18:10:53,711 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-13 18:10:53,711 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-13 18:10:53,711 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-13 18:10:53,711 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-13 18:10:53,712 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-11-13 18:10:53,712 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-11-13 18:10:53,715 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-13 18:10:53,735 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3790920e-7321-45ee-9abd-52e221d3c57d/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (85)] Forceful destruction successful, exit code 0 [2021-11-13 18:10:53,735 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-13 18:10:53,735 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3790920e-7321-45ee-9abd-52e221d3c57d/bin/uautomizer-YU5uOKAj3y/z3 [2021-11-13 18:10:53,736 INFO L229 MonitoredProcess]: Starting monitored process 86 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3790920e-7321-45ee-9abd-52e221d3c57d/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-13 18:10:53,737 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3790920e-7321-45ee-9abd-52e221d3c57d/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (86)] Waiting until timeout for monitored process [2021-11-13 18:10:53,738 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-13 18:10:53,745 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-13 18:10:53,745 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-13 18:10:53,745 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-13 18:10:53,745 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-13 18:10:53,746 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-11-13 18:10:53,746 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-11-13 18:10:53,754 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-13 18:10:53,774 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3790920e-7321-45ee-9abd-52e221d3c57d/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (86)] Forceful destruction successful, exit code 0 [2021-11-13 18:10:53,774 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-13 18:10:53,774 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3790920e-7321-45ee-9abd-52e221d3c57d/bin/uautomizer-YU5uOKAj3y/z3 [2021-11-13 18:10:53,775 INFO L229 MonitoredProcess]: Starting monitored process 87 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3790920e-7321-45ee-9abd-52e221d3c57d/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-13 18:10:53,776 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3790920e-7321-45ee-9abd-52e221d3c57d/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (87)] Waiting until timeout for monitored process [2021-11-13 18:10:53,776 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-13 18:10:53,783 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-13 18:10:53,783 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-13 18:10:53,783 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-13 18:10:53,783 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-13 18:10:53,783 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-13 18:10:53,784 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-13 18:10:53,784 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-13 18:10:53,785 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-13 18:10:53,805 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3790920e-7321-45ee-9abd-52e221d3c57d/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (87)] Ended with exit code 0 [2021-11-13 18:10:53,805 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-13 18:10:53,805 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3790920e-7321-45ee-9abd-52e221d3c57d/bin/uautomizer-YU5uOKAj3y/z3 [2021-11-13 18:10:53,806 INFO L229 MonitoredProcess]: Starting monitored process 88 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3790920e-7321-45ee-9abd-52e221d3c57d/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-13 18:10:53,806 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3790920e-7321-45ee-9abd-52e221d3c57d/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (88)] Waiting until timeout for monitored process [2021-11-13 18:10:53,807 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-13 18:10:53,814 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-13 18:10:53,814 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-13 18:10:53,814 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-13 18:10:53,815 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-13 18:10:53,817 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-11-13 18:10:53,817 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-11-13 18:10:53,822 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-13 18:10:53,843 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3790920e-7321-45ee-9abd-52e221d3c57d/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (88)] Forceful destruction successful, exit code 0 [2021-11-13 18:10:53,844 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-13 18:10:53,844 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3790920e-7321-45ee-9abd-52e221d3c57d/bin/uautomizer-YU5uOKAj3y/z3 [2021-11-13 18:10:53,844 INFO L229 MonitoredProcess]: Starting monitored process 89 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3790920e-7321-45ee-9abd-52e221d3c57d/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-13 18:10:53,845 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3790920e-7321-45ee-9abd-52e221d3c57d/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (89)] Waiting until timeout for monitored process [2021-11-13 18:10:53,846 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-13 18:10:53,853 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-13 18:10:53,853 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-13 18:10:53,853 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-13 18:10:53,853 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-13 18:10:53,854 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-11-13 18:10:53,854 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-11-13 18:10:53,856 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-13 18:10:53,875 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3790920e-7321-45ee-9abd-52e221d3c57d/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (89)] Ended with exit code 0 [2021-11-13 18:10:53,875 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-13 18:10:53,875 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3790920e-7321-45ee-9abd-52e221d3c57d/bin/uautomizer-YU5uOKAj3y/z3 [2021-11-13 18:10:53,876 INFO L229 MonitoredProcess]: Starting monitored process 90 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3790920e-7321-45ee-9abd-52e221d3c57d/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-13 18:10:53,877 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3790920e-7321-45ee-9abd-52e221d3c57d/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (90)] Waiting until timeout for monitored process [2021-11-13 18:10:53,877 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-13 18:10:53,884 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-13 18:10:53,885 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-13 18:10:53,885 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-13 18:10:53,885 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-13 18:10:53,890 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-11-13 18:10:53,890 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-11-13 18:10:53,902 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-11-13 18:10:53,924 INFO L443 ModelExtractionUtils]: Simplification made 10 calls to the SMT solver. [2021-11-13 18:10:53,924 INFO L444 ModelExtractionUtils]: 13 out of 31 variables were initially zero. Simplification set additionally 15 variables to zero. [2021-11-13 18:10:53,924 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-13 18:10:53,924 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3790920e-7321-45ee-9abd-52e221d3c57d/bin/uautomizer-YU5uOKAj3y/z3 [2021-11-13 18:10:53,940 INFO L229 MonitoredProcess]: Starting monitored process 91 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3790920e-7321-45ee-9abd-52e221d3c57d/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-13 18:10:53,942 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3790920e-7321-45ee-9abd-52e221d3c57d/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (91)] Waiting until timeout for monitored process [2021-11-13 18:10:53,942 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-11-13 18:10:53,953 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2021-11-13 18:10:53,954 INFO L513 LassoAnalysis]: Proved termination. [2021-11-13 18:10:53,954 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(~N~0, ULTIMATE.start_sep_~i~0#1) = 1*~N~0 - 1*ULTIMATE.start_sep_~i~0#1 Supporting invariants [] [2021-11-13 18:10:53,973 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3790920e-7321-45ee-9abd-52e221d3c57d/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (90)] Forceful destruction successful, exit code 0 [2021-11-13 18:10:54,168 INFO L297 tatePredicateManager]: 57 out of 57 supporting invariants were superfluous and have been removed [2021-11-13 18:10:54,177 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:10:54,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:10:54,221 INFO L263 TraceCheckSpWp]: Trace formula consists of 180 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-13 18:10:54,222 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 18:10:54,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:10:54,282 INFO L263 TraceCheckSpWp]: Trace formula consists of 15 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-13 18:10:54,282 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 18:10:54,299 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 18:10:54,299 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 [2021-11-13 18:10:54,300 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 70 states and 89 transitions. cyclomatic complexity: 27 Second operand has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 18:10:54,308 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 70 states and 89 transitions. cyclomatic complexity: 27. Second operand has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 74 states and 96 transitions. Complement of second has 4 states. [2021-11-13 18:10:54,309 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 [2021-11-13 18:10:54,309 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 18:10:54,309 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 25 transitions. [2021-11-13 18:10:54,309 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 25 transitions. Stem has 25 letters. Loop has 3 letters. [2021-11-13 18:10:54,310 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-13 18:10:54,310 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 25 transitions. Stem has 28 letters. Loop has 3 letters. [2021-11-13 18:10:54,310 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-13 18:10:54,310 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 25 transitions. Stem has 25 letters. Loop has 6 letters. [2021-11-13 18:10:54,311 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-13 18:10:54,311 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 74 states and 96 transitions. [2021-11-13 18:10:54,312 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-11-13 18:10:54,312 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 74 states to 0 states and 0 transitions. [2021-11-13 18:10:54,312 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2021-11-13 18:10:54,312 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2021-11-13 18:10:54,312 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2021-11-13 18:10:54,312 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-13 18:10:54,312 INFO L681 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-11-13 18:10:54,312 INFO L704 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-11-13 18:10:54,312 INFO L587 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-11-13 18:10:54,312 INFO L425 BuchiCegarLoop]: ======== Iteration 14============ [2021-11-13 18:10:54,313 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2021-11-13 18:10:54,313 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-11-13 18:10:54,313 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2021-11-13 18:10:54,318 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 13.11 06:10:54 BoogieIcfgContainer [2021-11-13 18:10:54,318 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-11-13 18:10:54,319 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-13 18:10:54,319 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-13 18:10:54,319 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-13 18:10:54,320 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 06:10:26" (3/4) ... [2021-11-13 18:10:54,322 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-11-13 18:10:54,322 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-13 18:10:54,323 INFO L158 Benchmark]: Toolchain (without parser) took 28403.76ms. Allocated memory was 113.2MB in the beginning and 262.1MB in the end (delta: 148.9MB). Free memory was 75.7MB in the beginning and 108.8MB in the end (delta: -33.2MB). Peak memory consumption was 115.3MB. Max. memory is 16.1GB. [2021-11-13 18:10:54,323 INFO L158 Benchmark]: CDTParser took 0.31ms. Allocated memory is still 113.2MB. Free memory is still 92.2MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-13 18:10:54,324 INFO L158 Benchmark]: CACSL2BoogieTranslator took 386.76ms. Allocated memory is still 113.2MB. Free memory was 75.5MB in the beginning and 88.7MB in the end (delta: -13.3MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-11-13 18:10:54,324 INFO L158 Benchmark]: Boogie Procedure Inliner took 67.13ms. Allocated memory is still 113.2MB. Free memory was 88.7MB in the beginning and 87.1MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-13 18:10:54,324 INFO L158 Benchmark]: Boogie Preprocessor took 58.55ms. Allocated memory is still 113.2MB. Free memory was 87.1MB in the beginning and 85.5MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-13 18:10:54,325 INFO L158 Benchmark]: RCFGBuilder took 507.34ms. Allocated memory is still 113.2MB. Free memory was 85.5MB in the beginning and 72.9MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2021-11-13 18:10:54,325 INFO L158 Benchmark]: BuchiAutomizer took 27373.81ms. Allocated memory was 113.2MB in the beginning and 262.1MB in the end (delta: 148.9MB). Free memory was 72.9MB in the beginning and 109.9MB in the end (delta: -37.0MB). Peak memory consumption was 113.9MB. Max. memory is 16.1GB. [2021-11-13 18:10:54,325 INFO L158 Benchmark]: Witness Printer took 3.81ms. Allocated memory is still 262.1MB. Free memory was 109.9MB in the beginning and 108.8MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-13 18:10:54,327 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31ms. Allocated memory is still 113.2MB. Free memory is still 92.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 386.76ms. Allocated memory is still 113.2MB. Free memory was 75.5MB in the beginning and 88.7MB in the end (delta: -13.3MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 67.13ms. Allocated memory is still 113.2MB. Free memory was 88.7MB in the beginning and 87.1MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 58.55ms. Allocated memory is still 113.2MB. Free memory was 87.1MB in the beginning and 85.5MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 507.34ms. Allocated memory is still 113.2MB. Free memory was 85.5MB in the beginning and 72.9MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * BuchiAutomizer took 27373.81ms. Allocated memory was 113.2MB in the beginning and 262.1MB in the end (delta: 148.9MB). Free memory was 72.9MB in the beginning and 109.9MB in the end (delta: -37.0MB). Peak memory consumption was 113.9MB. Max. memory is 16.1GB. * Witness Printer took 3.81ms. Allocated memory is still 262.1MB. Free memory was 109.9MB in the beginning and 108.8MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 13 terminating modules (9 trivial, 4 deterministic, 0 nondeterministic). One deterministic module has affine ranking function -4 * i + unknown-#length-unknown[x] and consists of 5 locations. One deterministic module has affine ranking function N + -1 * i and consists of 4 locations. One deterministic module has affine ranking function -4 * i + unknown-#length-unknown[x] and consists of 7 locations. One deterministic module has affine ranking function N + -1 * i and consists of 3 locations. 9 modules have a trivial ranking function, the largest among these consists of 28 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 27.3s and 14 iterations. TraceHistogramMax:2. Analysis of lassos took 22.7s. Construction of modules took 1.4s. Büchi inclusion checks took 2.8s. Highest rank in rank-based complementation 3. Minimization of det autom 13. Minimization of nondet autom 0. Automata minimization 0.1s AutomataMinimizationTime, 12 MinimizatonAttempts, 154 StatesRemovedByMinimization, 9 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 70 states and ocurred in iteration 12. Nontrivial modules had stage [4, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 405 SdHoareTripleChecker+Valid, 1787.67ms IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 403 mSDsluCounter, 1015 SdHoareTripleChecker+Invalid, 1479.30ms Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 180 IncrementalHoareTripleChecker+Unchecked, 756 mSDsCounter, 190 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1755 IncrementalHoareTripleChecker+Invalid, 2125 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 190 mSolverCounterUnsat, 259 mSDtfsCounter, 1755 mSolverCounterSat, 30.05ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT0 conc2 concLT0 SILN0 SILU7 SILI0 SILT0 lasso4 LassoPreprocessingBenchmarks: Lassos: inital308 mio100 ax100 hnf99 lsp94 ukn56 mio100 lsp49 div100 bol100 ite100 ukn100 eq180 hnf91 smp92 dnf100 smp100 tf100 neg100 sie102 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 56ms 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! [2021-11-13 18:10:54,369 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3790920e-7321-45ee-9abd-52e221d3c57d/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (91)] Forceful destruction successful, exit code 0 [2021-11-13 18:10:54,578 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3790920e-7321-45ee-9abd-52e221d3c57d/bin/uautomizer-YU5uOKAj3y/z3 -smt2 -in SMTLIB2_COMPLIANT=true (56)] Ended with exit code 0 [2021-11-13 18:10:54,782 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3790920e-7321-45ee-9abd-52e221d3c57d/bin/uautomizer-YU5uOKAj3y/z3 -smt2 -in SMTLIB2_COMPLIANT=true (55)] Forceful destruction successful, exit code 0 [2021-11-13 18:10:54,987 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3790920e-7321-45ee-9abd-52e221d3c57d/bin/uautomizer-YU5uOKAj3y/z3 -smt2 -in SMTLIB2_COMPLIANT=true (47)] Ended with exit code 0 [2021-11-13 18:10:55,187 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3790920e-7321-45ee-9abd-52e221d3c57d/bin/uautomizer-YU5uOKAj3y/z3 -smt2 -in SMTLIB2_COMPLIANT=true (46)] Ended with exit code 0 [2021-11-13 18:10:55,387 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3790920e-7321-45ee-9abd-52e221d3c57d/bin/uautomizer-YU5uOKAj3y/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Forceful destruction successful, exit code 0 [2021-11-13 18:10:55,587 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3790920e-7321-45ee-9abd-52e221d3c57d/bin/uautomizer-YU5uOKAj3y/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Ended with exit code 0 [2021-11-13 18:10:55,788 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3790920e-7321-45ee-9abd-52e221d3c57d/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE