./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/loop-lit/gsv2008.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version e943c265 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19c67433-bcf5-4798-a103-acd3802397a9/bin/uautomizer-j4sWxH34Be/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19c67433-bcf5-4798-a103-acd3802397a9/bin/uautomizer-j4sWxH34Be/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19c67433-bcf5-4798-a103-acd3802397a9/bin/uautomizer-j4sWxH34Be/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19c67433-bcf5-4798-a103-acd3802397a9/bin/uautomizer-j4sWxH34Be/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/loop-lit/gsv2008.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19c67433-bcf5-4798-a103-acd3802397a9/bin/uautomizer-j4sWxH34Be/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19c67433-bcf5-4798-a103-acd3802397a9/bin/uautomizer-j4sWxH34Be --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash d7b840784ed09a8ba534cc1991a3b26e3517ca5684a3a750b52e1a997eff0418 ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.1-dev-e943c26 [2021-10-21 19:49:24,301 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-21 19:49:24,304 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-21 19:49:24,365 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-21 19:49:24,366 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-21 19:49:24,370 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-21 19:49:24,372 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-21 19:49:24,376 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-21 19:49:24,379 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-21 19:49:24,387 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-21 19:49:24,388 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-21 19:49:24,390 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-21 19:49:24,390 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-21 19:49:24,394 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-21 19:49:24,397 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-21 19:49:24,406 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-21 19:49:24,408 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-21 19:49:24,409 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-21 19:49:24,411 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-21 19:49:24,418 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-21 19:49:24,421 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-21 19:49:24,422 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-21 19:49:24,426 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-21 19:49:24,427 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-21 19:49:24,438 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-21 19:49:24,439 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-21 19:49:24,439 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-21 19:49:24,442 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-21 19:49:24,442 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-21 19:49:24,444 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-21 19:49:24,444 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-21 19:49:24,445 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-21 19:49:24,445 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-21 19:49:24,446 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-21 19:49:24,447 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-21 19:49:24,448 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-21 19:49:24,448 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-21 19:49:24,449 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-21 19:49:24,449 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-21 19:49:24,450 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-21 19:49:24,450 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-21 19:49:24,451 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19c67433-bcf5-4798-a103-acd3802397a9/bin/uautomizer-j4sWxH34Be/config/svcomp-Termination-32bit-Automizer_Default.epf [2021-10-21 19:49:24,489 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-21 19:49:24,489 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-21 19:49:24,489 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-21 19:49:24,489 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-21 19:49:24,491 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-21 19:49:24,491 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-21 19:49:24,491 INFO L138 SettingsManager]: * Use SBE=true [2021-10-21 19:49:24,491 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-10-21 19:49:24,491 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-10-21 19:49:24,492 INFO L138 SettingsManager]: * Use old map elimination=false [2021-10-21 19:49:24,492 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-10-21 19:49:24,492 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-10-21 19:49:24,492 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-10-21 19:49:24,492 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-21 19:49:24,493 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-21 19:49:24,493 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-21 19:49:24,493 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-21 19:49:24,493 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-21 19:49:24,493 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-21 19:49:24,494 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-10-21 19:49:24,494 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-10-21 19:49:24,494 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-10-21 19:49:24,494 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-21 19:49:24,494 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-21 19:49:24,495 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-10-21 19:49:24,495 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-21 19:49:24,495 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-10-21 19:49:24,495 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-21 19:49:24,495 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-21 19:49:24,496 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-21 19:49:24,496 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-21 19:49:24,496 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-21 19:49:24,498 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-10-21 19:49:24,498 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_19c67433-bcf5-4798-a103-acd3802397a9/bin/uautomizer-j4sWxH34Be/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19c67433-bcf5-4798-a103-acd3802397a9/bin/uautomizer-j4sWxH34Be Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d7b840784ed09a8ba534cc1991a3b26e3517ca5684a3a750b52e1a997eff0418 [2021-10-21 19:49:24,807 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-21 19:49:24,832 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-21 19:49:24,836 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-21 19:49:24,837 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-21 19:49:24,838 INFO L275 PluginConnector]: CDTParser initialized [2021-10-21 19:49:24,839 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19c67433-bcf5-4798-a103-acd3802397a9/bin/uautomizer-j4sWxH34Be/../../sv-benchmarks/c/loop-lit/gsv2008.i [2021-10-21 19:49:24,938 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19c67433-bcf5-4798-a103-acd3802397a9/bin/uautomizer-j4sWxH34Be/data/8b09cd27c/c8aea9bd16074405b74fb6bd336b2119/FLAG616246d33 [2021-10-21 19:49:25,380 INFO L306 CDTParser]: Found 1 translation units. [2021-10-21 19:49:25,380 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19c67433-bcf5-4798-a103-acd3802397a9/sv-benchmarks/c/loop-lit/gsv2008.i [2021-10-21 19:49:25,386 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19c67433-bcf5-4798-a103-acd3802397a9/bin/uautomizer-j4sWxH34Be/data/8b09cd27c/c8aea9bd16074405b74fb6bd336b2119/FLAG616246d33 [2021-10-21 19:49:25,795 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19c67433-bcf5-4798-a103-acd3802397a9/bin/uautomizer-j4sWxH34Be/data/8b09cd27c/c8aea9bd16074405b74fb6bd336b2119 [2021-10-21 19:49:25,798 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-21 19:49:25,799 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-21 19:49:25,801 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-21 19:49:25,806 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-21 19:49:25,811 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-21 19:49:25,812 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.10 07:49:25" (1/1) ... [2021-10-21 19:49:25,826 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6d4d60d8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:49:25, skipping insertion in model container [2021-10-21 19:49:25,827 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.10 07:49:25" (1/1) ... [2021-10-21 19:49:25,843 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-21 19:49:25,870 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-21 19:49:26,231 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_19c67433-bcf5-4798-a103-acd3802397a9/sv-benchmarks/c/loop-lit/gsv2008.i[895,908] [2021-10-21 19:49:26,256 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-21 19:49:26,282 INFO L203 MainTranslator]: Completed pre-run [2021-10-21 19:49:26,320 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_19c67433-bcf5-4798-a103-acd3802397a9/sv-benchmarks/c/loop-lit/gsv2008.i[895,908] [2021-10-21 19:49:26,326 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-21 19:49:26,354 INFO L208 MainTranslator]: Completed translation [2021-10-21 19:49:26,369 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:49:26 WrapperNode [2021-10-21 19:49:26,369 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-21 19:49:26,371 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-21 19:49:26,371 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-21 19:49:26,371 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-21 19:49:26,381 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:49:26" (1/1) ... [2021-10-21 19:49:26,402 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:49:26" (1/1) ... [2021-10-21 19:49:26,443 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-21 19:49:26,447 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-21 19:49:26,447 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-21 19:49:26,447 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-21 19:49:26,471 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:49:26" (1/1) ... [2021-10-21 19:49:26,471 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:49:26" (1/1) ... [2021-10-21 19:49:26,485 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:49:26" (1/1) ... [2021-10-21 19:49:26,485 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:49:26" (1/1) ... [2021-10-21 19:49:26,488 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:49:26" (1/1) ... [2021-10-21 19:49:26,493 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:49:26" (1/1) ... [2021-10-21 19:49:26,504 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:49:26" (1/1) ... [2021-10-21 19:49:26,506 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-21 19:49:26,513 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-21 19:49:26,514 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-21 19:49:26,514 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-21 19:49:26,516 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:49:26" (1/1) ... [2021-10-21 19:49:26,539 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:49:26,566 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19c67433-bcf5-4798-a103-acd3802397a9/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:49:26,605 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19c67433-bcf5-4798-a103-acd3802397a9/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:49:26,651 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19c67433-bcf5-4798-a103-acd3802397a9/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-10-21 19:49:26,707 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-21 19:49:26,707 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-21 19:49:26,708 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-21 19:49:26,708 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-21 19:49:27,046 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-21 19:49:27,046 INFO L299 CfgBuilder]: Removed 7 assume(true) statements. [2021-10-21 19:49:27,048 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 07:49:27 BoogieIcfgContainer [2021-10-21 19:49:27,048 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-21 19:49:27,049 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-10-21 19:49:27,050 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-10-21 19:49:27,053 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-10-21 19:49:27,054 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-21 19:49:27,054 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 21.10 07:49:25" (1/3) ... [2021-10-21 19:49:27,056 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@761eb577 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 21.10 07:49:27, skipping insertion in model container [2021-10-21 19:49:27,072 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-21 19:49:27,081 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:49:26" (2/3) ... [2021-10-21 19:49:27,082 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@761eb577 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 21.10 07:49:27, skipping insertion in model container [2021-10-21 19:49:27,082 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-21 19:49:27,082 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 07:49:27" (3/3) ... [2021-10-21 19:49:27,084 INFO L389 chiAutomizerObserver]: Analyzing ICFG gsv2008.i [2021-10-21 19:49:27,190 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-10-21 19:49:27,220 INFO L360 BuchiCegarLoop]: Hoare is false [2021-10-21 19:49:27,221 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-10-21 19:49:27,221 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-10-21 19:49:27,221 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-10-21 19:49:27,221 INFO L364 BuchiCegarLoop]: Difference is false [2021-10-21 19:49:27,221 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-10-21 19:49:27,221 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-10-21 19:49:27,277 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 11 states, 10 states have (on average 1.4) internal successors, (14), 10 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:49:27,324 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2021-10-21 19:49:27,324 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-21 19:49:27,325 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-21 19:49:27,341 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2021-10-21 19:49:27,341 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1] [2021-10-21 19:49:27,341 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-10-21 19:49:27,342 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 11 states, 10 states have (on average 1.4) internal successors, (14), 10 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:49:27,344 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2021-10-21 19:49:27,348 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-21 19:49:27,348 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-21 19:49:27,348 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2021-10-21 19:49:27,349 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1] [2021-10-21 19:49:27,356 INFO L791 eck$LassoCheckResult]: Stem: 5#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string0.base, #t~string0.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string0.base, #t~string0.offset, 1);call write~init~int(0, #t~string0.base, 1 + #t~string0.offset, 1);call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(9); 10#L-1true havoc main_#res;havoc main_#t~nondet3, main_#t~post4, main_~x~0, main_~y~0;havoc main_~x~0;havoc main_~y~0;main_~x~0 := -50;main_~y~0 := main_#t~nondet3;havoc main_#t~nondet3; 9#L28true assume !!(-1000 < main_~y~0 && main_~y~0 < 1000000); 12#L29-2true [2021-10-21 19:49:27,376 INFO L793 eck$LassoCheckResult]: Loop: 12#L29-2true assume !!(main_~x~0 < 0);main_~x~0 := main_~x~0 + main_~y~0;main_#t~post4 := main_~y~0;main_~y~0 := 1 + main_#t~post4;havoc main_#t~post4; 12#L29-2true [2021-10-21 19:49:27,394 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:49:27,394 INFO L82 PathProgramCache]: Analyzing trace with hash 29860, now seen corresponding path program 1 times [2021-10-21 19:49:27,415 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:49:27,425 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [521943738] [2021-10-21 19:49:27,425 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:49:27,426 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:49:27,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:49:27,727 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 19:49:27,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:49:27,828 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 19:49:27,835 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:49:27,835 INFO L82 PathProgramCache]: Analyzing trace with hash 47, now seen corresponding path program 1 times [2021-10-21 19:49:27,836 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:49:27,838 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2082005657] [2021-10-21 19:49:27,839 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:49:27,839 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:49:27,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:49:27,876 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 19:49:27,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:49:27,887 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 19:49:27,890 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:49:27,890 INFO L82 PathProgramCache]: Analyzing trace with hash 925676, now seen corresponding path program 1 times [2021-10-21 19:49:27,891 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:49:27,891 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [586745716] [2021-10-21 19:49:27,892 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:49:27,892 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:49:27,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:49:27,949 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 19:49:27,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:49:28,034 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 19:49:28,191 INFO L210 LassoAnalysis]: Preferences: [2021-10-21 19:49:28,192 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-21 19:49:28,192 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-21 19:49:28,192 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-21 19:49:28,192 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-10-21 19:49:28,193 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:49:28,193 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-21 19:49:28,193 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-21 19:49:28,193 INFO L133 ssoRankerPreferences]: Filename of dumped script: gsv2008.i_Iteration1_Loop [2021-10-21 19:49:28,194 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-21 19:49:28,194 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-21 19:49:28,218 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:49:28,242 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:49:28,329 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-21 19:49:28,330 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-10-21 19:49:28,333 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:49:28,333 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19c67433-bcf5-4798-a103-acd3802397a9/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:49:28,340 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19c67433-bcf5-4798-a103-acd3802397a9/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:49:28,348 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-21 19:49:28,348 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-21 19:49:28,369 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19c67433-bcf5-4798-a103-acd3802397a9/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2021-10-21 19:49:28,434 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19c67433-bcf5-4798-a103-acd3802397a9/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2021-10-21 19:49:28,434 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:49:28,434 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19c67433-bcf5-4798-a103-acd3802397a9/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:49:28,440 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19c67433-bcf5-4798-a103-acd3802397a9/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:49:28,453 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-10-21 19:49:28,454 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-21 19:49:28,504 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19c67433-bcf5-4798-a103-acd3802397a9/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2021-10-21 19:49:28,653 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-10-21 19:49:28,661 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19c67433-bcf5-4798-a103-acd3802397a9/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2021-10-21 19:49:28,661 INFO L210 LassoAnalysis]: Preferences: [2021-10-21 19:49:28,661 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-21 19:49:28,661 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-21 19:49:28,662 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-21 19:49:28,662 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-21 19:49:28,662 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:49:28,662 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-21 19:49:28,662 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-21 19:49:28,662 INFO L133 ssoRankerPreferences]: Filename of dumped script: gsv2008.i_Iteration1_Loop [2021-10-21 19:49:28,662 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-21 19:49:28,663 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-21 19:49:28,664 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:49:28,694 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:49:28,747 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-21 19:49:28,753 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-10-21 19:49:28,757 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:49:28,766 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19c67433-bcf5-4798-a103-acd3802397a9/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:49:28,771 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19c67433-bcf5-4798-a103-acd3802397a9/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:49:28,777 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 19:49:28,788 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 19:49:28,789 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 19:49:28,789 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:49:28,790 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:49:28,790 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 19:49:28,803 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-21 19:49:28,804 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 19:49:28,818 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19c67433-bcf5-4798-a103-acd3802397a9/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2021-10-21 19:49:28,831 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:49:28,912 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19c67433-bcf5-4798-a103-acd3802397a9/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2021-10-21 19:49:28,913 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:49:28,913 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19c67433-bcf5-4798-a103-acd3802397a9/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:49:28,929 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19c67433-bcf5-4798-a103-acd3802397a9/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:49:28,954 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 19:49:28,954 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19c67433-bcf5-4798-a103-acd3802397a9/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2021-10-21 19:49:28,962 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 19:49:28,963 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 19:49:28,963 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:49:28,963 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:49:28,963 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 19:49:28,965 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-21 19:49:28,965 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 19:49:28,978 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:49:29,001 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19c67433-bcf5-4798-a103-acd3802397a9/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2021-10-21 19:49:29,002 INFO L490 LassoAnalysis]: Using template '2-nested'. [2021-10-21 19:49:29,002 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:49:29,002 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19c67433-bcf5-4798-a103-acd3802397a9/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:49:29,003 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19c67433-bcf5-4798-a103-acd3802397a9/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:49:29,005 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19c67433-bcf5-4798-a103-acd3802397a9/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2021-10-21 19:49:29,009 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 19:49:29,017 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 19:49:29,017 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 19:49:29,017 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:49:29,018 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:49:29,018 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2021-10-21 19:49:29,021 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2021-10-21 19:49:29,021 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 19:49:29,036 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-10-21 19:49:29,047 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2021-10-21 19:49:29,047 INFO L444 ModelExtractionUtils]: 2 out of 7 variables were initially zero. Simplification set additionally 1 variables to zero. [2021-10-21 19:49:29,049 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:49:29,049 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19c67433-bcf5-4798-a103-acd3802397a9/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:49:29,051 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19c67433-bcf5-4798-a103-acd3802397a9/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:49:29,058 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-10-21 19:49:29,058 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-10-21 19:49:29,058 INFO L513 LassoAnalysis]: Proved termination. [2021-10-21 19:49:29,059 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function 2-nested ranking function: f0 = -2*ULTIMATE.start_main_~y~0 + 1 f1 = -2*ULTIMATE.start_main_~x~0 Supporting invariants [] [2021-10-21 19:49:29,080 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19c67433-bcf5-4798-a103-acd3802397a9/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2021-10-21 19:49:29,096 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19c67433-bcf5-4798-a103-acd3802397a9/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2021-10-21 19:49:29,099 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-10-21 19:49:29,131 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:49:29,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:49:29,147 INFO L263 TraceCheckSpWp]: Trace formula consists of 31 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-21 19:49:29,148 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 19:49:29,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:49:29,169 WARN L261 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 6 conjunts are in the unsatisfiable core [2021-10-21 19:49:29,170 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 19:49:29,170 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:49:29,186 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2021-10-21 19:49:29,188 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 11 states, 10 states have (on average 1.4) internal successors, (14), 10 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:49:29,229 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 11 states, 10 states have (on average 1.4) internal successors, (14), 10 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0). Second operand has 2 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 29 states and 34 transitions. Complement of second has 5 states. [2021-10-21 19:49:29,229 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2021-10-21 19:49:29,231 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:49:29,232 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 23 transitions. [2021-10-21 19:49:29,233 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 23 transitions. Stem has 3 letters. Loop has 1 letters. [2021-10-21 19:49:29,234 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-21 19:49:29,235 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 23 transitions. Stem has 4 letters. Loop has 1 letters. [2021-10-21 19:49:29,235 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-21 19:49:29,235 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 23 transitions. Stem has 3 letters. Loop has 2 letters. [2021-10-21 19:49:29,235 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-21 19:49:29,236 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 29 states and 34 transitions. [2021-10-21 19:49:29,240 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-10-21 19:49:29,242 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 29 states to 0 states and 0 transitions. [2021-10-21 19:49:29,243 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2021-10-21 19:49:29,243 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2021-10-21 19:49:29,244 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2021-10-21 19:49:29,244 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-21 19:49:29,245 INFO L681 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-21 19:49:29,245 INFO L704 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-21 19:49:29,245 INFO L587 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-21 19:49:29,245 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-10-21 19:49:29,245 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2021-10-21 19:49:29,245 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-10-21 19:49:29,245 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2021-10-21 19:49:29,251 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 21.10 07:49:29 BoogieIcfgContainer [2021-10-21 19:49:29,251 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-10-21 19:49:29,252 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-21 19:49:29,252 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-21 19:49:29,253 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-21 19:49:29,253 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 07:49:27" (3/4) ... [2021-10-21 19:49:29,256 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-10-21 19:49:29,256 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-21 19:49:29,258 INFO L168 Benchmark]: Toolchain (without parser) took 3457.67 ms. Allocated memory was 96.5 MB in the beginning and 117.4 MB in the end (delta: 21.0 MB). Free memory was 63.3 MB in the beginning and 73.0 MB in the end (delta: -9.7 MB). Peak memory consumption was 11.1 MB. Max. memory is 16.1 GB. [2021-10-21 19:49:29,259 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 96.5 MB. Free memory is still 51.8 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-21 19:49:29,259 INFO L168 Benchmark]: CACSL2BoogieTranslator took 568.81 ms. Allocated memory is still 96.5 MB. Free memory was 63.1 MB in the beginning and 71.4 MB in the end (delta: -8.3 MB). Peak memory consumption was 9.8 MB. Max. memory is 16.1 GB. [2021-10-21 19:49:29,260 INFO L168 Benchmark]: Boogie Procedure Inliner took 73.38 ms. Allocated memory is still 96.5 MB. Free memory was 71.4 MB in the beginning and 70.0 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-21 19:49:29,261 INFO L168 Benchmark]: Boogie Preprocessor took 65.97 ms. Allocated memory is still 96.5 MB. Free memory was 70.0 MB in the beginning and 68.9 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-21 19:49:29,261 INFO L168 Benchmark]: RCFGBuilder took 535.11 ms. Allocated memory is still 96.5 MB. Free memory was 68.9 MB in the beginning and 60.5 MB in the end (delta: 8.4 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-21 19:49:29,262 INFO L168 Benchmark]: BuchiAutomizer took 2202.20 ms. Allocated memory was 96.5 MB in the beginning and 117.4 MB in the end (delta: 21.0 MB). Free memory was 60.2 MB in the beginning and 73.6 MB in the end (delta: -13.4 MB). Peak memory consumption was 7.6 MB. Max. memory is 16.1 GB. [2021-10-21 19:49:29,263 INFO L168 Benchmark]: Witness Printer took 4.28 ms. Allocated memory is still 117.4 MB. Free memory was 73.6 MB in the beginning and 73.0 MB in the end (delta: 553.3 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-21 19:49:29,266 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 96.5 MB. Free memory is still 51.8 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 568.81 ms. Allocated memory is still 96.5 MB. Free memory was 63.1 MB in the beginning and 71.4 MB in the end (delta: -8.3 MB). Peak memory consumption was 9.8 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 73.38 ms. Allocated memory is still 96.5 MB. Free memory was 71.4 MB in the beginning and 70.0 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 65.97 ms. Allocated memory is still 96.5 MB. Free memory was 70.0 MB in the beginning and 68.9 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 535.11 ms. Allocated memory is still 96.5 MB. Free memory was 68.9 MB in the beginning and 60.5 MB in the end (delta: 8.4 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 2202.20 ms. Allocated memory was 96.5 MB in the beginning and 117.4 MB in the end (delta: 21.0 MB). Free memory was 60.2 MB in the beginning and 73.6 MB in the end (delta: -13.4 MB). Peak memory consumption was 7.6 MB. Max. memory is 16.1 GB. * Witness Printer took 4.28 ms. Allocated memory is still 117.4 MB. Free memory was 73.6 MB in the beginning and 73.0 MB in the end (delta: 553.3 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). One deterministic module has 2-nested ranking function (if -2 * y + 1 > 0 then 1 else 0), (if -2 * y + 1 > 0 then -2 * y + 1 else -2 * x) and consists of 4 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 2.0s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 1.7s. Construction of modules took 0.0s. Büchi inclusion checks took 0.1s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 0. Automata minimization No data available. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 0 states and ocurred in iteration 1. Nontrivial modules had stage [1, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 11 SDtfs, 12 SDslu, 5 SDs, 0 SdLazy, 5 SolverSat, 1 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 7.4ms Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT1 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital15 mio100 ax100 hnf100 lsp100 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq179 hnf92 smp100 dnf100 smp100 tf108 neg100 sie107 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: sat Degree: 0 Time: 56ms VariablesStem: 0 VariablesLoop: 4 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 0 MotzkinApplications: 3 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 1 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.3s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2021-10-21 19:49:29,316 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19c67433-bcf5-4798-a103-acd3802397a9/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2021-10-21 19:49:29,542 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19c67433-bcf5-4798-a103-acd3802397a9/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...