./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/loops/trex04.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 57096758 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e2839c1-975f-4083-b8b3-40822f4ca11f/bin/uautomizer-hJ6jxDFKc3/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e2839c1-975f-4083-b8b3-40822f4ca11f/bin/uautomizer-hJ6jxDFKc3/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e2839c1-975f-4083-b8b3-40822f4ca11f/bin/uautomizer-hJ6jxDFKc3/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e2839c1-975f-4083-b8b3-40822f4ca11f/bin/uautomizer-hJ6jxDFKc3/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/loops/trex04.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e2839c1-975f-4083-b8b3-40822f4ca11f/bin/uautomizer-hJ6jxDFKc3/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e2839c1-975f-4083-b8b3-40822f4ca11f/bin/uautomizer-hJ6jxDFKc3 --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 c0c30085260bdb967fa5af56fb7a55027317cc86 ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(TERM) --- Real Ultimate output --- This is Ultimate 0.2.1-dev-5709675 [2021-10-15 20:03:44,236 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-15 20:03:44,240 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-15 20:03:44,292 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-15 20:03:44,293 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-15 20:03:44,295 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-15 20:03:44,300 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-15 20:03:44,304 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-15 20:03:44,308 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-15 20:03:44,312 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-15 20:03:44,313 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-15 20:03:44,316 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-15 20:03:44,317 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-15 20:03:44,325 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-15 20:03:44,327 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-15 20:03:44,329 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-15 20:03:44,334 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-15 20:03:44,335 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-15 20:03:44,337 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-15 20:03:44,348 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-15 20:03:44,350 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-15 20:03:44,354 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-15 20:03:44,356 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-15 20:03:44,357 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-15 20:03:44,361 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-15 20:03:44,364 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-15 20:03:44,365 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-15 20:03:44,366 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-15 20:03:44,367 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-15 20:03:44,368 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-15 20:03:44,368 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-15 20:03:44,369 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-15 20:03:44,370 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-15 20:03:44,371 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-15 20:03:44,372 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-15 20:03:44,372 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-15 20:03:44,373 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-15 20:03:44,373 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-15 20:03:44,373 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-15 20:03:44,374 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-15 20:03:44,375 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-15 20:03:44,376 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e2839c1-975f-4083-b8b3-40822f4ca11f/bin/uautomizer-hJ6jxDFKc3/config/svcomp-Termination-32bit-Automizer_Default.epf [2021-10-15 20:03:44,404 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-15 20:03:44,404 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-15 20:03:44,405 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-15 20:03:44,405 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-15 20:03:44,406 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-15 20:03:44,406 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-15 20:03:44,407 INFO L138 SettingsManager]: * Use SBE=true [2021-10-15 20:03:44,407 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-10-15 20:03:44,407 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-10-15 20:03:44,407 INFO L138 SettingsManager]: * Use old map elimination=false [2021-10-15 20:03:44,408 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-10-15 20:03:44,408 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-10-15 20:03:44,408 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-10-15 20:03:44,408 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-15 20:03:44,409 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-15 20:03:44,409 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-15 20:03:44,409 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-15 20:03:44,409 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-15 20:03:44,409 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-15 20:03:44,410 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-10-15 20:03:44,410 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-10-15 20:03:44,410 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-10-15 20:03:44,410 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-15 20:03:44,410 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-15 20:03:44,411 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-10-15 20:03:44,411 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-15 20:03:44,411 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-10-15 20:03:44,411 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-15 20:03:44,412 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-15 20:03:44,412 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-15 20:03:44,412 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-15 20:03:44,412 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-15 20:03:44,413 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-10-15 20:03:44,414 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_5e2839c1-975f-4083-b8b3-40822f4ca11f/bin/uautomizer-hJ6jxDFKc3/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e2839c1-975f-4083-b8b3-40822f4ca11f/bin/uautomizer-hJ6jxDFKc3 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c0c30085260bdb967fa5af56fb7a55027317cc86 [2021-10-15 20:03:44,694 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-15 20:03:44,719 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-15 20:03:44,722 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-15 20:03:44,723 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-15 20:03:44,724 INFO L275 PluginConnector]: CDTParser initialized [2021-10-15 20:03:44,725 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e2839c1-975f-4083-b8b3-40822f4ca11f/bin/uautomizer-hJ6jxDFKc3/../../sv-benchmarks/c/loops/trex04.c [2021-10-15 20:03:44,815 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e2839c1-975f-4083-b8b3-40822f4ca11f/bin/uautomizer-hJ6jxDFKc3/data/6913a188a/d3f9d144898f4a369d33edebb75a61d1/FLAGc8bfda51c [2021-10-15 20:03:45,301 INFO L306 CDTParser]: Found 1 translation units. [2021-10-15 20:03:45,303 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e2839c1-975f-4083-b8b3-40822f4ca11f/sv-benchmarks/c/loops/trex04.c [2021-10-15 20:03:45,317 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e2839c1-975f-4083-b8b3-40822f4ca11f/bin/uautomizer-hJ6jxDFKc3/data/6913a188a/d3f9d144898f4a369d33edebb75a61d1/FLAGc8bfda51c [2021-10-15 20:03:45,658 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e2839c1-975f-4083-b8b3-40822f4ca11f/bin/uautomizer-hJ6jxDFKc3/data/6913a188a/d3f9d144898f4a369d33edebb75a61d1 [2021-10-15 20:03:45,661 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-15 20:03:45,663 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-15 20:03:45,665 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-15 20:03:45,665 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-15 20:03:45,669 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-15 20:03:45,670 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 08:03:45" (1/1) ... [2021-10-15 20:03:45,671 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@157e9170 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 08:03:45, skipping insertion in model container [2021-10-15 20:03:45,672 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 08:03:45" (1/1) ... [2021-10-15 20:03:45,680 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-15 20:03:45,695 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-15 20:03:45,898 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_5e2839c1-975f-4083-b8b3-40822f4ca11f/sv-benchmarks/c/loops/trex04.c[405,418] [2021-10-15 20:03:45,921 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-15 20:03:45,946 INFO L203 MainTranslator]: Completed pre-run [2021-10-15 20:03:45,963 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_5e2839c1-975f-4083-b8b3-40822f4ca11f/sv-benchmarks/c/loops/trex04.c[405,418] [2021-10-15 20:03:45,982 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-15 20:03:46,009 INFO L208 MainTranslator]: Completed translation [2021-10-15 20:03:46,010 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 08:03:46 WrapperNode [2021-10-15 20:03:46,010 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-15 20:03:46,012 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-15 20:03:46,012 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-15 20:03:46,012 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-15 20:03:46,022 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 08:03:46" (1/1) ... [2021-10-15 20:03:46,031 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 08:03:46" (1/1) ... [2021-10-15 20:03:46,063 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-15 20:03:46,064 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-15 20:03:46,065 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-15 20:03:46,065 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-15 20:03:46,074 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 08:03:46" (1/1) ... [2021-10-15 20:03:46,075 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 08:03:46" (1/1) ... [2021-10-15 20:03:46,087 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 08:03:46" (1/1) ... [2021-10-15 20:03:46,088 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 08:03:46" (1/1) ... [2021-10-15 20:03:46,092 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 08:03:46" (1/1) ... [2021-10-15 20:03:46,100 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 08:03:46" (1/1) ... [2021-10-15 20:03:46,110 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 08:03:46" (1/1) ... [2021-10-15 20:03:46,114 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-15 20:03:46,117 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-15 20:03:46,117 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-15 20:03:46,117 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-15 20:03:46,119 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 08:03:46" (1/1) ... [2021-10-15 20:03:46,128 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 20:03:46,140 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e2839c1-975f-4083-b8b3-40822f4ca11f/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 20:03:46,165 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e2839c1-975f-4083-b8b3-40822f4ca11f/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-15 20:03:46,183 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e2839c1-975f-4083-b8b3-40822f4ca11f/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-10-15 20:03:46,228 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-15 20:03:46,228 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-15 20:03:46,229 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-15 20:03:46,229 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-15 20:03:46,463 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-15 20:03:46,463 INFO L299 CfgBuilder]: Removed 11 assume(true) statements. [2021-10-15 20:03:46,465 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 08:03:46 BoogieIcfgContainer [2021-10-15 20:03:46,465 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-15 20:03:46,466 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-10-15 20:03:46,466 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-10-15 20:03:46,470 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-10-15 20:03:46,471 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-15 20:03:46,471 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 15.10 08:03:45" (1/3) ... [2021-10-15 20:03:46,473 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@5649bc01 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 15.10 08:03:46, skipping insertion in model container [2021-10-15 20:03:46,473 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-15 20:03:46,474 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 08:03:46" (2/3) ... [2021-10-15 20:03:46,474 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@5649bc01 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 15.10 08:03:46, skipping insertion in model container [2021-10-15 20:03:46,474 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-15 20:03:46,474 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 08:03:46" (3/3) ... [2021-10-15 20:03:46,476 INFO L389 chiAutomizerObserver]: Analyzing ICFG trex04.c [2021-10-15 20:03:46,521 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-10-15 20:03:46,521 INFO L360 BuchiCegarLoop]: Hoare is false [2021-10-15 20:03:46,521 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-10-15 20:03:46,521 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-10-15 20:03:46,521 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-10-15 20:03:46,522 INFO L364 BuchiCegarLoop]: Difference is false [2021-10-15 20:03:46,522 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-10-15 20:03:46,522 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-10-15 20:03:46,536 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 19 states, 18 states have (on average 1.6666666666666667) internal successors, (30), 18 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-15 20:03:46,555 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2021-10-15 20:03:46,556 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-15 20:03:46,556 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-15 20:03:46,562 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-10-15 20:03:46,562 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1] [2021-10-15 20:03:46,562 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-10-15 20:03:46,570 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 19 states, 18 states have (on average 1.6666666666666667) internal successors, (30), 18 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-15 20:03:46,575 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2021-10-15 20:03:46,575 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-15 20:03:46,575 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-15 20:03:46,576 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-10-15 20:03:46,584 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1] [2021-10-15 20:03:46,591 INFO L791 eck$LassoCheckResult]: Stem: 7#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(9);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12); 10#L-1true havoc main_#res;havoc main_#t~nondet11, main_#t~nondet12, main_#t~nondet13, main_#t~nondet14, main_#t~nondet15, main_~d~0, main_~x~0, main_~c1~1, main_~c2~1;main_~d~0 := 1;main_~x~0 := main_#t~nondet11;havoc main_#t~nondet11; 8#L31true assume !!(main_~x~0 <= 1000000 && main_~x~0 >= -1000000);main_~c1~1 := main_#t~nondet12;havoc main_#t~nondet12;main_~c2~1 := main_#t~nondet13;havoc main_#t~nondet13; 14#L34true assume !(0 != main_~c1~1 % 256); 12#L34-2true assume !(0 != main_~c2~1 % 256); 20#L35true main_~c1~1 := main_#t~nondet14;havoc main_#t~nondet14;main_~c2~1 := main_#t~nondet15;havoc main_#t~nondet15; 21#L39true assume !(0 != main_~c1~1 % 256); 9#L39-1true assume !(0 != main_~c2~1 % 256); 5#L42-1true [2021-10-15 20:03:46,591 INFO L793 eck$LassoCheckResult]: Loop: 5#L42-1true assume !!(main_~x~0 > 0);main_~x~0 := main_~x~0 - main_~d~0; 5#L42-1true [2021-10-15 20:03:46,620 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-15 20:03:46,620 INFO L82 PathProgramCache]: Analyzing trace with hash 179965264, now seen corresponding path program 1 times [2021-10-15 20:03:46,629 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-15 20:03:46,630 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [28688212] [2021-10-15 20:03:46,630 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-15 20:03:46,631 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-15 20:03:46,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-15 20:03:46,761 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-15 20:03:46,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-15 20:03:46,815 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-15 20:03:46,818 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-15 20:03:46,819 INFO L82 PathProgramCache]: Analyzing trace with hash 95, now seen corresponding path program 1 times [2021-10-15 20:03:46,819 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-15 20:03:46,819 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [345199594] [2021-10-15 20:03:46,820 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-15 20:03:46,820 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-15 20:03:46,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-15 20:03:46,826 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-15 20:03:46,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-15 20:03:46,851 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-15 20:03:46,853 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-15 20:03:46,853 INFO L82 PathProgramCache]: Analyzing trace with hash 1283955952, now seen corresponding path program 1 times [2021-10-15 20:03:46,854 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-15 20:03:46,854 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [684978792] [2021-10-15 20:03:46,854 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-15 20:03:46,855 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-15 20:03:46,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-15 20:03:46,911 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-15 20:03:46,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-15 20:03:46,970 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-15 20:03:47,717 INFO L210 LassoAnalysis]: Preferences: [2021-10-15 20:03:47,718 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-15 20:03:47,718 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-15 20:03:47,718 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-15 20:03:47,718 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-15 20:03:47,718 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 20:03:47,719 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-15 20:03:47,719 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-15 20:03:47,719 INFO L133 ssoRankerPreferences]: Filename of dumped script: trex04.c_Iteration1_Lasso [2021-10-15 20:03:47,719 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-15 20:03:47,720 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-15 20:03:47,748 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-15 20:03:47,755 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-15 20:03:47,758 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-15 20:03:47,760 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-15 20:03:47,765 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-15 20:03:47,769 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-15 20:03:47,772 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-15 20:03:47,866 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-15 20:03:47,870 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-15 20:03:47,872 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-15 20:03:47,874 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-15 20:03:47,878 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-15 20:03:47,881 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-15 20:03:47,885 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-15 20:03:48,194 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-15 20:03:48,199 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-10-15 20:03:48,201 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 20:03:48,201 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e2839c1-975f-4083-b8b3-40822f4ca11f/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 20:03:48,203 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e2839c1-975f-4083-b8b3-40822f4ca11f/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-15 20:03:48,222 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e2839c1-975f-4083-b8b3-40822f4ca11f/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2021-10-15 20:03:48,222 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-15 20:03:48,233 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-15 20:03:48,233 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-15 20:03:48,233 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-15 20:03:48,234 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-15 20:03:48,234 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-15 20:03:48,236 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-15 20:03:48,236 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-15 20:03:48,251 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-15 20:03:48,290 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e2839c1-975f-4083-b8b3-40822f4ca11f/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2021-10-15 20:03:48,291 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 20:03:48,291 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e2839c1-975f-4083-b8b3-40822f4ca11f/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 20:03:48,293 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e2839c1-975f-4083-b8b3-40822f4ca11f/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-15 20:03:48,300 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-15 20:03:48,311 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-15 20:03:48,312 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-15 20:03:48,312 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-15 20:03:48,312 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-15 20:03:48,312 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-15 20:03:48,314 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-15 20:03:48,314 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-15 20:03:48,317 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e2839c1-975f-4083-b8b3-40822f4ca11f/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2021-10-15 20:03:48,318 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-15 20:03:48,346 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e2839c1-975f-4083-b8b3-40822f4ca11f/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2021-10-15 20:03:48,347 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 20:03:48,347 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e2839c1-975f-4083-b8b3-40822f4ca11f/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 20:03:48,348 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e2839c1-975f-4083-b8b3-40822f4ca11f/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-15 20:03:48,352 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-15 20:03:48,363 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-15 20:03:48,363 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-15 20:03:48,363 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-15 20:03:48,363 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-15 20:03:48,364 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-15 20:03:48,365 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-15 20:03:48,365 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-15 20:03:48,367 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e2839c1-975f-4083-b8b3-40822f4ca11f/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2021-10-15 20:03:48,377 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-15 20:03:48,416 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e2839c1-975f-4083-b8b3-40822f4ca11f/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2021-10-15 20:03:48,416 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 20:03:48,416 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e2839c1-975f-4083-b8b3-40822f4ca11f/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 20:03:48,418 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e2839c1-975f-4083-b8b3-40822f4ca11f/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-15 20:03:48,427 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-15 20:03:48,437 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-15 20:03:48,438 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-15 20:03:48,438 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-15 20:03:48,438 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-15 20:03:48,442 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-15 20:03:48,442 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-15 20:03:48,446 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e2839c1-975f-4083-b8b3-40822f4ca11f/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2021-10-15 20:03:48,459 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-15 20:03:48,497 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e2839c1-975f-4083-b8b3-40822f4ca11f/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2021-10-15 20:03:48,497 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 20:03:48,497 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e2839c1-975f-4083-b8b3-40822f4ca11f/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 20:03:48,499 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e2839c1-975f-4083-b8b3-40822f4ca11f/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-15 20:03:48,505 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-15 20:03:48,514 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-15 20:03:48,515 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-15 20:03:48,515 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-15 20:03:48,515 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-15 20:03:48,519 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-15 20:03:48,519 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-15 20:03:48,523 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e2839c1-975f-4083-b8b3-40822f4ca11f/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2021-10-15 20:03:48,543 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-15 20:03:48,580 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e2839c1-975f-4083-b8b3-40822f4ca11f/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2021-10-15 20:03:48,580 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 20:03:48,580 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e2839c1-975f-4083-b8b3-40822f4ca11f/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 20:03:48,582 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e2839c1-975f-4083-b8b3-40822f4ca11f/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-15 20:03:48,588 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-15 20:03:48,597 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-15 20:03:48,597 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-15 20:03:48,598 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-15 20:03:48,598 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-15 20:03:48,598 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-15 20:03:48,599 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-15 20:03:48,599 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-15 20:03:48,600 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e2839c1-975f-4083-b8b3-40822f4ca11f/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2021-10-15 20:03:48,615 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-15 20:03:48,652 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e2839c1-975f-4083-b8b3-40822f4ca11f/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2021-10-15 20:03:48,652 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 20:03:48,652 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e2839c1-975f-4083-b8b3-40822f4ca11f/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 20:03:48,654 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e2839c1-975f-4083-b8b3-40822f4ca11f/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-15 20:03:48,655 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e2839c1-975f-4083-b8b3-40822f4ca11f/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2021-10-15 20:03:48,660 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-15 20:03:48,670 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-15 20:03:48,670 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-15 20:03:48,671 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-15 20:03:48,671 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-15 20:03:48,676 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-15 20:03:48,676 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-15 20:03:48,692 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-15 20:03:48,715 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e2839c1-975f-4083-b8b3-40822f4ca11f/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Forceful destruction successful, exit code 0 [2021-10-15 20:03:48,716 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 20:03:48,716 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e2839c1-975f-4083-b8b3-40822f4ca11f/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 20:03:48,717 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e2839c1-975f-4083-b8b3-40822f4ca11f/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-15 20:03:48,723 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e2839c1-975f-4083-b8b3-40822f4ca11f/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2021-10-15 20:03:48,724 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-15 20:03:48,735 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-15 20:03:48,735 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-15 20:03:48,735 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-15 20:03:48,736 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-15 20:03:48,738 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-15 20:03:48,738 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-15 20:03:48,753 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-15 20:03:48,773 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e2839c1-975f-4083-b8b3-40822f4ca11f/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Forceful destruction successful, exit code 0 [2021-10-15 20:03:48,773 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 20:03:48,773 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e2839c1-975f-4083-b8b3-40822f4ca11f/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 20:03:48,774 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e2839c1-975f-4083-b8b3-40822f4ca11f/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-15 20:03:48,776 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 [2021-10-15 20:03:48,785 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-15 20:03:48,785 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-15 20:03:48,785 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-15 20:03:48,785 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-15 20:03:48,788 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-15 20:03:48,788 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-15 20:03:48,792 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e2839c1-975f-4083-b8b3-40822f4ca11f/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2021-10-15 20:03:48,806 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-15 20:03:48,826 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e2839c1-975f-4083-b8b3-40822f4ca11f/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Ended with exit code 0 [2021-10-15 20:03:48,827 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 20:03:48,827 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e2839c1-975f-4083-b8b3-40822f4ca11f/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 20:03:48,827 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e2839c1-975f-4083-b8b3-40822f4ca11f/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-15 20:03:48,831 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e2839c1-975f-4083-b8b3-40822f4ca11f/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2021-10-15 20:03:48,832 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-15 20:03:48,840 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-15 20:03:48,840 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-15 20:03:48,840 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-15 20:03:48,840 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-15 20:03:48,842 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-15 20:03:48,843 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-15 20:03:48,870 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-15 20:03:48,903 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e2839c1-975f-4083-b8b3-40822f4ca11f/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Forceful destruction successful, exit code 0 [2021-10-15 20:03:48,904 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 20:03:48,904 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e2839c1-975f-4083-b8b3-40822f4ca11f/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 20:03:48,907 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e2839c1-975f-4083-b8b3-40822f4ca11f/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-15 20:03:48,915 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-15 20:03:48,924 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-15 20:03:48,924 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-15 20:03:48,924 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-15 20:03:48,924 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-15 20:03:48,927 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-15 20:03:48,927 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-15 20:03:48,931 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e2839c1-975f-4083-b8b3-40822f4ca11f/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2021-10-15 20:03:48,947 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-15 20:03:48,983 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e2839c1-975f-4083-b8b3-40822f4ca11f/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Forceful destruction successful, exit code 0 [2021-10-15 20:03:48,983 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 20:03:48,984 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e2839c1-975f-4083-b8b3-40822f4ca11f/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 20:03:48,985 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e2839c1-975f-4083-b8b3-40822f4ca11f/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-15 20:03:48,987 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-15 20:03:48,987 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e2839c1-975f-4083-b8b3-40822f4ca11f/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2021-10-15 20:03:48,994 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-15 20:03:48,995 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-15 20:03:48,995 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-15 20:03:48,995 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-15 20:03:48,997 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-15 20:03:48,997 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-15 20:03:49,033 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-15 20:03:49,061 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e2839c1-975f-4083-b8b3-40822f4ca11f/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Forceful destruction successful, exit code 0 [2021-10-15 20:03:49,061 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 20:03:49,061 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e2839c1-975f-4083-b8b3-40822f4ca11f/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 20:03:49,062 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e2839c1-975f-4083-b8b3-40822f4ca11f/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-15 20:03:49,063 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e2839c1-975f-4083-b8b3-40822f4ca11f/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2021-10-15 20:03:49,066 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-15 20:03:49,073 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-15 20:03:49,074 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-15 20:03:49,074 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-15 20:03:49,074 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-15 20:03:49,076 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-15 20:03:49,076 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-15 20:03:49,092 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-15 20:03:49,113 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e2839c1-975f-4083-b8b3-40822f4ca11f/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Forceful destruction successful, exit code 0 [2021-10-15 20:03:49,113 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 20:03:49,113 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e2839c1-975f-4083-b8b3-40822f4ca11f/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 20:03:49,114 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e2839c1-975f-4083-b8b3-40822f4ca11f/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-15 20:03:49,115 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e2839c1-975f-4083-b8b3-40822f4ca11f/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2021-10-15 20:03:49,116 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-15 20:03:49,123 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-15 20:03:49,123 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-15 20:03:49,123 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-15 20:03:49,123 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-15 20:03:49,125 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-15 20:03:49,125 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-15 20:03:49,139 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-15 20:03:49,159 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e2839c1-975f-4083-b8b3-40822f4ca11f/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Forceful destruction successful, exit code 0 [2021-10-15 20:03:49,159 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 20:03:49,160 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e2839c1-975f-4083-b8b3-40822f4ca11f/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 20:03:49,160 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e2839c1-975f-4083-b8b3-40822f4ca11f/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-15 20:03:49,161 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e2839c1-975f-4083-b8b3-40822f4ca11f/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2021-10-15 20:03:49,165 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-15 20:03:49,172 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-15 20:03:49,172 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-15 20:03:49,172 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-15 20:03:49,172 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-15 20:03:49,174 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-15 20:03:49,174 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-15 20:03:49,208 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-15 20:03:49,241 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e2839c1-975f-4083-b8b3-40822f4ca11f/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Ended with exit code 0 [2021-10-15 20:03:49,241 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 20:03:49,241 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e2839c1-975f-4083-b8b3-40822f4ca11f/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 20:03:49,242 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e2839c1-975f-4083-b8b3-40822f4ca11f/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-15 20:03:49,245 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e2839c1-975f-4083-b8b3-40822f4ca11f/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process [2021-10-15 20:03:49,245 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-15 20:03:49,253 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-15 20:03:49,253 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-15 20:03:49,253 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-15 20:03:49,253 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-15 20:03:49,257 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-15 20:03:49,257 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-15 20:03:49,269 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-15 20:03:49,306 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e2839c1-975f-4083-b8b3-40822f4ca11f/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Forceful destruction successful, exit code 0 [2021-10-15 20:03:49,307 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 20:03:49,307 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e2839c1-975f-4083-b8b3-40822f4ca11f/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 20:03:49,311 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e2839c1-975f-4083-b8b3-40822f4ca11f/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-15 20:03:49,317 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-15 20:03:49,326 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-15 20:03:49,326 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-15 20:03:49,326 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-15 20:03:49,326 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-15 20:03:49,329 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-15 20:03:49,329 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-15 20:03:49,333 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e2839c1-975f-4083-b8b3-40822f4ca11f/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Waiting until timeout for monitored process [2021-10-15 20:03:49,337 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-15 20:03:49,357 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e2839c1-975f-4083-b8b3-40822f4ca11f/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Ended with exit code 0 [2021-10-15 20:03:49,357 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 20:03:49,357 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e2839c1-975f-4083-b8b3-40822f4ca11f/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 20:03:49,358 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e2839c1-975f-4083-b8b3-40822f4ca11f/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-15 20:03:49,359 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e2839c1-975f-4083-b8b3-40822f4ca11f/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Waiting until timeout for monitored process [2021-10-15 20:03:49,374 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-15 20:03:49,383 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-15 20:03:49,383 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-15 20:03:49,384 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-15 20:03:49,384 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-15 20:03:49,388 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-15 20:03:49,388 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-15 20:03:49,403 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-15 20:03:49,427 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e2839c1-975f-4083-b8b3-40822f4ca11f/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Forceful destruction successful, exit code 0 [2021-10-15 20:03:49,427 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 20:03:49,427 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e2839c1-975f-4083-b8b3-40822f4ca11f/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 20:03:49,428 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e2839c1-975f-4083-b8b3-40822f4ca11f/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-15 20:03:49,433 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e2839c1-975f-4083-b8b3-40822f4ca11f/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Waiting until timeout for monitored process [2021-10-15 20:03:49,434 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-15 20:03:49,441 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-15 20:03:49,441 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-15 20:03:49,441 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-15 20:03:49,442 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-15 20:03:49,442 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-15 20:03:49,442 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-15 20:03:49,443 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-15 20:03:49,444 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-15 20:03:49,466 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e2839c1-975f-4083-b8b3-40822f4ca11f/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Forceful destruction successful, exit code 0 [2021-10-15 20:03:49,466 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 20:03:49,466 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e2839c1-975f-4083-b8b3-40822f4ca11f/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 20:03:49,467 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e2839c1-975f-4083-b8b3-40822f4ca11f/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-15 20:03:49,469 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e2839c1-975f-4083-b8b3-40822f4ca11f/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Waiting until timeout for monitored process [2021-10-15 20:03:49,470 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-15 20:03:49,477 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-15 20:03:49,477 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-15 20:03:49,477 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-15 20:03:49,477 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-15 20:03:49,477 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-15 20:03:49,478 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-15 20:03:49,478 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-15 20:03:49,493 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-15 20:03:49,513 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e2839c1-975f-4083-b8b3-40822f4ca11f/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Forceful destruction successful, exit code 0 [2021-10-15 20:03:49,513 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 20:03:49,513 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e2839c1-975f-4083-b8b3-40822f4ca11f/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 20:03:49,514 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e2839c1-975f-4083-b8b3-40822f4ca11f/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-15 20:03:49,515 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e2839c1-975f-4083-b8b3-40822f4ca11f/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Waiting until timeout for monitored process [2021-10-15 20:03:49,517 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-15 20:03:49,524 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-15 20:03:49,524 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-15 20:03:49,524 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-15 20:03:49,524 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-15 20:03:49,532 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-15 20:03:49,532 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-15 20:03:49,536 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-15 20:03:49,559 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e2839c1-975f-4083-b8b3-40822f4ca11f/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Forceful destruction successful, exit code 0 [2021-10-15 20:03:49,559 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 20:03:49,559 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e2839c1-975f-4083-b8b3-40822f4ca11f/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 20:03:49,560 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e2839c1-975f-4083-b8b3-40822f4ca11f/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-15 20:03:49,567 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e2839c1-975f-4083-b8b3-40822f4ca11f/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Waiting until timeout for monitored process [2021-10-15 20:03:49,568 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-15 20:03:49,576 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-15 20:03:49,576 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-15 20:03:49,576 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-15 20:03:49,576 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-15 20:03:49,578 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-15 20:03:49,579 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-15 20:03:49,600 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-15 20:03:49,622 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e2839c1-975f-4083-b8b3-40822f4ca11f/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Forceful destruction successful, exit code 0 [2021-10-15 20:03:49,622 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 20:03:49,622 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e2839c1-975f-4083-b8b3-40822f4ca11f/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 20:03:49,623 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e2839c1-975f-4083-b8b3-40822f4ca11f/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-15 20:03:49,624 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e2839c1-975f-4083-b8b3-40822f4ca11f/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Waiting until timeout for monitored process [2021-10-15 20:03:49,625 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-15 20:03:49,632 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-15 20:03:49,632 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-15 20:03:49,632 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-15 20:03:49,632 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-15 20:03:49,634 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-15 20:03:49,634 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-15 20:03:49,658 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-15 20:03:49,685 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e2839c1-975f-4083-b8b3-40822f4ca11f/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Ended with exit code 0 [2021-10-15 20:03:49,685 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 20:03:49,685 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e2839c1-975f-4083-b8b3-40822f4ca11f/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 20:03:49,686 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e2839c1-975f-4083-b8b3-40822f4ca11f/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-15 20:03:49,686 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e2839c1-975f-4083-b8b3-40822f4ca11f/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Waiting until timeout for monitored process [2021-10-15 20:03:49,687 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-15 20:03:49,696 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-15 20:03:49,696 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-15 20:03:49,696 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-15 20:03:49,696 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-15 20:03:49,703 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-15 20:03:49,703 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-15 20:03:49,717 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-10-15 20:03:49,729 INFO L443 ModelExtractionUtils]: Simplification made 5 calls to the SMT solver. [2021-10-15 20:03:49,729 INFO L444 ModelExtractionUtils]: 1 out of 10 variables were initially zero. Simplification set additionally 5 variables to zero. [2021-10-15 20:03:49,731 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 20:03:49,731 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e2839c1-975f-4083-b8b3-40822f4ca11f/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 20:03:49,747 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e2839c1-975f-4083-b8b3-40822f4ca11f/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-15 20:03:49,748 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-10-15 20:03:49,758 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e2839c1-975f-4083-b8b3-40822f4ca11f/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Waiting until timeout for monitored process [2021-10-15 20:03:49,795 INFO L438 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2021-10-15 20:03:49,795 INFO L513 LassoAnalysis]: Proved termination. [2021-10-15 20:03:49,796 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0) = 1*ULTIMATE.start_main_~x~0 Supporting invariants [1*ULTIMATE.start_main_~d~0 - 1 >= 0] [2021-10-15 20:03:49,834 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e2839c1-975f-4083-b8b3-40822f4ca11f/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Forceful destruction successful, exit code 0 [2021-10-15 20:03:49,855 INFO L297 tatePredicateManager]: 7 out of 8 supporting invariants were superfluous and have been removed [2021-10-15 20:03:49,903 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-15 20:03:49,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-15 20:03:49,940 INFO L263 TraceCheckSpWp]: Trace formula consists of 53 conjuncts, 3 conjunts are in the unsatisfiable core [2021-10-15 20:03:49,941 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-15 20:03:50,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-15 20:03:50,049 WARN L261 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 5 conjunts are in the unsatisfiable core [2021-10-15 20:03:50,049 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-15 20:03:50,050 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-15 20:03:50,067 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.2 stem predicates 1 loop predicates [2021-10-15 20:03:50,069 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 19 states, 18 states have (on average 1.6666666666666667) internal successors, (30), 18 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) Second operand has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-15 20:03:50,236 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 19 states, 18 states have (on average 1.6666666666666667) internal successors, (30), 18 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). Second operand has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 62 states and 90 transitions. Complement of second has 8 states. [2021-10-15 20:03:50,237 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 6 states 2 stem states 1 non-accepting loop states 2 accepting loop states [2021-10-15 20:03:50,238 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-15 20:03:50,239 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 63 transitions. [2021-10-15 20:03:50,240 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 63 transitions. Stem has 8 letters. Loop has 1 letters. [2021-10-15 20:03:50,241 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-15 20:03:50,241 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 63 transitions. Stem has 9 letters. Loop has 1 letters. [2021-10-15 20:03:50,241 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-15 20:03:50,241 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 63 transitions. Stem has 8 letters. Loop has 2 letters. [2021-10-15 20:03:50,241 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-15 20:03:50,242 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 62 states and 90 transitions. [2021-10-15 20:03:50,248 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 2 [2021-10-15 20:03:50,251 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 62 states to 24 states and 38 transitions. [2021-10-15 20:03:50,252 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 23 [2021-10-15 20:03:50,252 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 24 [2021-10-15 20:03:50,253 INFO L73 IsDeterministic]: Start isDeterministic. Operand 24 states and 38 transitions. [2021-10-15 20:03:50,253 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-15 20:03:50,253 INFO L681 BuchiCegarLoop]: Abstraction has 24 states and 38 transitions. [2021-10-15 20:03:50,267 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states and 38 transitions. [2021-10-15 20:03:50,276 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 21. [2021-10-15 20:03:50,276 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21 states, 21 states have (on average 1.6666666666666667) internal successors, (35), 20 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-15 20:03:50,277 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 35 transitions. [2021-10-15 20:03:50,278 INFO L704 BuchiCegarLoop]: Abstraction has 21 states and 35 transitions. [2021-10-15 20:03:50,278 INFO L587 BuchiCegarLoop]: Abstraction has 21 states and 35 transitions. [2021-10-15 20:03:50,278 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-10-15 20:03:50,278 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 21 states and 35 transitions. [2021-10-15 20:03:50,279 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2021-10-15 20:03:50,279 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-15 20:03:50,280 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-15 20:03:50,281 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-10-15 20:03:50,281 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1] [2021-10-15 20:03:50,282 INFO L791 eck$LassoCheckResult]: Stem: 179#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(9);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12); 180#L-1 havoc main_#res;havoc main_#t~nondet11, main_#t~nondet12, main_#t~nondet13, main_#t~nondet14, main_#t~nondet15, main_~d~0, main_~x~0, main_~c1~1, main_~c2~1;main_~d~0 := 1;main_~x~0 := main_#t~nondet11;havoc main_#t~nondet11; 181#L31 assume !!(main_~x~0 <= 1000000 && main_~x~0 >= -1000000);main_~c1~1 := main_#t~nondet12;havoc main_#t~nondet12;main_~c2~1 := main_#t~nondet13;havoc main_#t~nondet13; 182#L34 assume 0 != main_~c1~1 % 256;main_~d~0 := main_~d~0 - 1; 186#L34-2 assume !(0 != main_~c2~1 % 256); 185#L35 main_~c1~1 := main_#t~nondet14;havoc main_#t~nondet14;main_~c2~1 := main_#t~nondet15;havoc main_#t~nondet15; 190#L39 assume !(0 != main_~c1~1 % 256); 177#L39-1 assume !(0 != main_~c2~1 % 256); 178#L42-1 [2021-10-15 20:03:50,282 INFO L793 eck$LassoCheckResult]: Loop: 178#L42-1 assume !!(main_~x~0 > 0);main_~x~0 := main_~x~0 - main_~d~0; 178#L42-1 [2021-10-15 20:03:50,282 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-15 20:03:50,283 INFO L82 PathProgramCache]: Analyzing trace with hash 178118222, now seen corresponding path program 1 times [2021-10-15 20:03:50,283 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-15 20:03:50,283 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [617268374] [2021-10-15 20:03:50,283 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-15 20:03:50,283 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-15 20:03:50,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-15 20:03:50,301 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-15 20:03:50,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-15 20:03:50,322 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-15 20:03:50,323 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-15 20:03:50,323 INFO L82 PathProgramCache]: Analyzing trace with hash 95, now seen corresponding path program 2 times [2021-10-15 20:03:50,323 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-15 20:03:50,323 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1074432817] [2021-10-15 20:03:50,323 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-15 20:03:50,324 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-15 20:03:50,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-15 20:03:50,328 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-15 20:03:50,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-15 20:03:50,332 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-15 20:03:50,332 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-15 20:03:50,333 INFO L82 PathProgramCache]: Analyzing trace with hash 1226697650, now seen corresponding path program 1 times [2021-10-15 20:03:50,333 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-15 20:03:50,333 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [284537791] [2021-10-15 20:03:50,333 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-15 20:03:50,333 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-15 20:03:50,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-15 20:03:50,349 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-15 20:03:50,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-15 20:03:50,369 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-15 20:03:50,901 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e2839c1-975f-4083-b8b3-40822f4ca11f/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Forceful destruction successful, exit code 0 [2021-10-15 20:03:50,942 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 15.10 08:03:50 BoogieIcfgContainer [2021-10-15 20:03:50,943 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-10-15 20:03:50,943 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-15 20:03:50,943 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-15 20:03:50,944 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-15 20:03:50,944 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 08:03:46" (3/4) ... [2021-10-15 20:03:50,947 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2021-10-15 20:03:51,015 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e2839c1-975f-4083-b8b3-40822f4ca11f/bin/uautomizer-hJ6jxDFKc3/witness.graphml [2021-10-15 20:03:51,015 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-15 20:03:51,017 INFO L168 Benchmark]: Toolchain (without parser) took 5353.12 ms. Allocated memory was 100.7 MB in the beginning and 121.6 MB in the end (delta: 21.0 MB). Free memory was 59.5 MB in the beginning and 90.9 MB in the end (delta: -31.4 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-15 20:03:51,019 INFO L168 Benchmark]: CDTParser took 0.28 ms. Allocated memory is still 100.7 MB. Free memory is still 75.7 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-15 20:03:51,019 INFO L168 Benchmark]: CACSL2BoogieTranslator took 346.20 ms. Allocated memory is still 100.7 MB. Free memory was 59.3 MB in the beginning and 75.3 MB in the end (delta: -16.0 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-15 20:03:51,020 INFO L168 Benchmark]: Boogie Procedure Inliner took 51.41 ms. Allocated memory is still 100.7 MB. Free memory was 74.9 MB in the beginning and 73.8 MB in the end (delta: 1.2 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-15 20:03:51,021 INFO L168 Benchmark]: Boogie Preprocessor took 51.44 ms. Allocated memory is still 100.7 MB. Free memory was 73.4 MB in the beginning and 72.5 MB in the end (delta: 929.5 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-15 20:03:51,021 INFO L168 Benchmark]: RCFGBuilder took 348.66 ms. Allocated memory is still 100.7 MB. Free memory was 72.5 MB in the beginning and 62.4 MB in the end (delta: 10.1 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-15 20:03:51,022 INFO L168 Benchmark]: BuchiAutomizer took 4476.47 ms. Allocated memory was 100.7 MB in the beginning and 121.6 MB in the end (delta: 21.0 MB). Free memory was 62.0 MB in the beginning and 91.9 MB in the end (delta: -29.9 MB). Peak memory consumption was 53.7 MB. Max. memory is 16.1 GB. [2021-10-15 20:03:51,022 INFO L168 Benchmark]: Witness Printer took 72.01 ms. Allocated memory is still 121.6 MB. Free memory was 91.9 MB in the beginning and 90.9 MB in the end (delta: 997.0 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-15 20:03:51,027 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28 ms. Allocated memory is still 100.7 MB. Free memory is still 75.7 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 346.20 ms. Allocated memory is still 100.7 MB. Free memory was 59.3 MB in the beginning and 75.3 MB in the end (delta: -16.0 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 51.41 ms. Allocated memory is still 100.7 MB. Free memory was 74.9 MB in the beginning and 73.8 MB in the end (delta: 1.2 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 51.44 ms. Allocated memory is still 100.7 MB. Free memory was 73.4 MB in the beginning and 72.5 MB in the end (delta: 929.5 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 348.66 ms. Allocated memory is still 100.7 MB. Free memory was 72.5 MB in the beginning and 62.4 MB in the end (delta: 10.1 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 4476.47 ms. Allocated memory was 100.7 MB in the beginning and 121.6 MB in the end (delta: 21.0 MB). Free memory was 62.0 MB in the beginning and 91.9 MB in the end (delta: -29.9 MB). Peak memory consumption was 53.7 MB. Max. memory is 16.1 GB. * Witness Printer took 72.01 ms. Allocated memory is still 121.6 MB. Free memory was 91.9 MB in the beginning and 90.9 MB in the end (delta: 997.0 kB). There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 1 terminating modules (0 trivial, 1 deterministic, 0 nondeterministic) and one nonterminating remainder module.One deterministic module has affine ranking function x and consists of 6 locations. The remainder module has 21 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 4.4s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 3.8s. Construction of modules took 0.0s. Büchi inclusion checks took 0.3s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 0. Automata minimization 11.7ms AutomataMinimizationTime, 1 MinimizatonAttempts, 3 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 21 states and ocurred in iteration 1. Nontrivial modules had stage [1, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 45 SDtfs, 53 SDslu, 25 SDs, 0 SdLazy, 17 SolverSat, 4 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 39.1ms Time LassoAnalysisResults: nont1 unkn0 SFLI0 SFLT0 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso1 LassoPreprocessingBenchmarks: Lassos: inital134 mio100 ax100 hnf100 lsp69 ukn47 mio100 lsp47 div209 bol100 ite100 ukn100 eq145 hnf45 smp100 dnf100 smp100 tf100 neg100 sie106 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 42ms 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: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - FixpointNonTerminationResult [Line: 42]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=32022} State at position 1 is {NULL=0, NULL=0, d=0, NULL=0, NULL=32023, NULL=0, \result=0, NULL=32025, NULL=32022, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@131bb32a=0, NULL=0, c2=0, c1=0, x=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@94b5191=0, NULL=32024, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5cfc5898=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7205cd90=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3cc9a219=0} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 28]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L29] int d = 1; [L30] int x = __VERIFIER_nondet_int(); [L31] COND FALSE !(!(x <= 1000000 && x >= -1000000)) [L32] _Bool c1=__VERIFIER_nondet_bool(), c2=__VERIFIER_nondet_bool(); [L32] _Bool c1=__VERIFIER_nondet_bool(), c2=__VERIFIER_nondet_bool(); [L34] COND TRUE \read(c1) [L34] d = d - 1 [L35] COND FALSE !(\read(c2)) [L37] c1=__VERIFIER_nondet_bool() [L37] c2=__VERIFIER_nondet_bool() [L39] COND FALSE !(\read(c1)) [L40] COND FALSE !(\read(c2)) Loop: [L42] COND TRUE x>0 [L44] x=x-d End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2021-10-15 20:03:51,104 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e2839c1-975f-4083-b8b3-40822f4ca11f/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...