./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/psyco/psyco_abp_1-1.c --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_2a172b1f-75ce-4d92-995f-9da10b01d8b0/bin/uautomizer-j4sWxH34Be/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a172b1f-75ce-4d92-995f-9da10b01d8b0/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_2a172b1f-75ce-4d92-995f-9da10b01d8b0/bin/uautomizer-j4sWxH34Be/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a172b1f-75ce-4d92-995f-9da10b01d8b0/bin/uautomizer-j4sWxH34Be/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/psyco/psyco_abp_1-1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a172b1f-75ce-4d92-995f-9da10b01d8b0/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_2a172b1f-75ce-4d92-995f-9da10b01d8b0/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 39adc6d5c92d5d4be7746cac0afbcc96f3b450588f18f3eb2d03a3ab1e20a3ef ....................................................................................................................................................................................................................................................................................................................................................................... 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-e943c26 [2021-10-21 20:05:06,302 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-21 20:05:06,305 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-21 20:05:06,359 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-21 20:05:06,360 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-21 20:05:06,361 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-21 20:05:06,363 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-21 20:05:06,366 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-21 20:05:06,368 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-21 20:05:06,369 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-21 20:05:06,371 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-21 20:05:06,372 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-21 20:05:06,373 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-21 20:05:06,381 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-21 20:05:06,383 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-21 20:05:06,386 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-21 20:05:06,389 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-21 20:05:06,394 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-21 20:05:06,397 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-21 20:05:06,405 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-21 20:05:06,407 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-21 20:05:06,416 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-21 20:05:06,417 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-21 20:05:06,420 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-21 20:05:06,425 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-21 20:05:06,428 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-21 20:05:06,429 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-21 20:05:06,435 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-21 20:05:06,438 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-21 20:05:06,440 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-21 20:05:06,441 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-21 20:05:06,442 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-21 20:05:06,444 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-21 20:05:06,446 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-21 20:05:06,448 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-21 20:05:06,449 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-21 20:05:06,450 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-21 20:05:06,450 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-21 20:05:06,450 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-21 20:05:06,451 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-21 20:05:06,452 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-21 20:05:06,453 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a172b1f-75ce-4d92-995f-9da10b01d8b0/bin/uautomizer-j4sWxH34Be/config/svcomp-Termination-32bit-Automizer_Default.epf [2021-10-21 20:05:06,510 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-21 20:05:06,512 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-21 20:05:06,513 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-21 20:05:06,513 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-21 20:05:06,514 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-21 20:05:06,515 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-21 20:05:06,515 INFO L138 SettingsManager]: * Use SBE=true [2021-10-21 20:05:06,515 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-10-21 20:05:06,516 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-10-21 20:05:06,516 INFO L138 SettingsManager]: * Use old map elimination=false [2021-10-21 20:05:06,517 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-10-21 20:05:06,517 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-10-21 20:05:06,517 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-10-21 20:05:06,518 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-21 20:05:06,518 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-21 20:05:06,518 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-21 20:05:06,518 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-21 20:05:06,519 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-21 20:05:06,519 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-21 20:05:06,519 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-10-21 20:05:06,519 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-10-21 20:05:06,520 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-10-21 20:05:06,520 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-21 20:05:06,520 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-21 20:05:06,520 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-10-21 20:05:06,521 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-21 20:05:06,521 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-10-21 20:05:06,521 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-21 20:05:06,521 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-21 20:05:06,522 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-21 20:05:06,522 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-21 20:05:06,523 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-21 20:05:06,524 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-10-21 20:05:06,524 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_2a172b1f-75ce-4d92-995f-9da10b01d8b0/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a172b1f-75ce-4d92-995f-9da10b01d8b0/bin/uautomizer-j4sWxH34Be Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 39adc6d5c92d5d4be7746cac0afbcc96f3b450588f18f3eb2d03a3ab1e20a3ef [2021-10-21 20:05:06,866 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-21 20:05:06,896 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-21 20:05:06,899 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-21 20:05:06,900 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-21 20:05:06,903 INFO L275 PluginConnector]: CDTParser initialized [2021-10-21 20:05:06,904 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a172b1f-75ce-4d92-995f-9da10b01d8b0/bin/uautomizer-j4sWxH34Be/../../sv-benchmarks/c/psyco/psyco_abp_1-1.c [2021-10-21 20:05:06,975 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a172b1f-75ce-4d92-995f-9da10b01d8b0/bin/uautomizer-j4sWxH34Be/data/012cf97fe/bed8afb3a6714e6d95dfe04201b68ef2/FLAGbe664b9d4 [2021-10-21 20:05:07,581 INFO L306 CDTParser]: Found 1 translation units. [2021-10-21 20:05:07,582 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a172b1f-75ce-4d92-995f-9da10b01d8b0/sv-benchmarks/c/psyco/psyco_abp_1-1.c [2021-10-21 20:05:07,596 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a172b1f-75ce-4d92-995f-9da10b01d8b0/bin/uautomizer-j4sWxH34Be/data/012cf97fe/bed8afb3a6714e6d95dfe04201b68ef2/FLAGbe664b9d4 [2021-10-21 20:05:07,870 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a172b1f-75ce-4d92-995f-9da10b01d8b0/bin/uautomizer-j4sWxH34Be/data/012cf97fe/bed8afb3a6714e6d95dfe04201b68ef2 [2021-10-21 20:05:07,873 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-21 20:05:07,875 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-21 20:05:07,876 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-21 20:05:07,877 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-21 20:05:07,880 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-21 20:05:07,881 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.10 08:05:07" (1/1) ... [2021-10-21 20:05:07,883 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1a474657 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:05:07, skipping insertion in model container [2021-10-21 20:05:07,883 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.10 08:05:07" (1/1) ... [2021-10-21 20:05:07,891 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-21 20:05:07,935 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-21 20:05:08,253 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_2a172b1f-75ce-4d92-995f-9da10b01d8b0/sv-benchmarks/c/psyco/psyco_abp_1-1.c[24818,24831] [2021-10-21 20:05:08,258 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-21 20:05:08,268 INFO L203 MainTranslator]: Completed pre-run [2021-10-21 20:05:08,348 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_2a172b1f-75ce-4d92-995f-9da10b01d8b0/sv-benchmarks/c/psyco/psyco_abp_1-1.c[24818,24831] [2021-10-21 20:05:08,351 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-21 20:05:08,366 INFO L208 MainTranslator]: Completed translation [2021-10-21 20:05:08,367 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:05:08 WrapperNode [2021-10-21 20:05:08,367 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-21 20:05:08,368 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-21 20:05:08,369 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-21 20:05:08,369 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-21 20:05:08,391 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:05:08" (1/1) ... [2021-10-21 20:05:08,407 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:05:08" (1/1) ... [2021-10-21 20:05:08,474 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-21 20:05:08,475 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-21 20:05:08,476 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-21 20:05:08,476 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-21 20:05:08,485 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:05:08" (1/1) ... [2021-10-21 20:05:08,489 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:05:08" (1/1) ... [2021-10-21 20:05:08,500 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:05:08" (1/1) ... [2021-10-21 20:05:08,510 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:05:08" (1/1) ... [2021-10-21 20:05:08,544 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:05:08" (1/1) ... [2021-10-21 20:05:08,566 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:05:08" (1/1) ... [2021-10-21 20:05:08,570 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:05:08" (1/1) ... [2021-10-21 20:05:08,583 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-21 20:05:08,585 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-21 20:05:08,585 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-21 20:05:08,585 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-21 20:05:08,591 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:05:08" (1/1) ... [2021-10-21 20:05:08,601 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:05:08,619 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a172b1f-75ce-4d92-995f-9da10b01d8b0/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:05:08,633 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a172b1f-75ce-4d92-995f-9da10b01d8b0/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:05:08,653 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a172b1f-75ce-4d92-995f-9da10b01d8b0/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-10-21 20:05:08,696 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-21 20:05:08,696 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-21 20:05:08,697 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-21 20:05:08,697 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-21 20:05:09,630 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-21 20:05:09,633 INFO L299 CfgBuilder]: Removed 6 assume(true) statements. [2021-10-21 20:05:09,636 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 08:05:09 BoogieIcfgContainer [2021-10-21 20:05:09,637 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-21 20:05:09,638 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-10-21 20:05:09,638 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-10-21 20:05:09,644 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-10-21 20:05:09,645 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-21 20:05:09,646 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 21.10 08:05:07" (1/3) ... [2021-10-21 20:05:09,648 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@cf5616e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 21.10 08:05:09, skipping insertion in model container [2021-10-21 20:05:09,648 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-21 20:05:09,649 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:05:08" (2/3) ... [2021-10-21 20:05:09,649 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@cf5616e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 21.10 08:05:09, skipping insertion in model container [2021-10-21 20:05:09,649 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-21 20:05:09,649 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 08:05:09" (3/3) ... [2021-10-21 20:05:09,652 INFO L389 chiAutomizerObserver]: Analyzing ICFG psyco_abp_1-1.c [2021-10-21 20:05:09,732 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-10-21 20:05:09,733 INFO L360 BuchiCegarLoop]: Hoare is false [2021-10-21 20:05:09,733 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-10-21 20:05:09,733 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-10-21 20:05:09,733 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-10-21 20:05:09,734 INFO L364 BuchiCegarLoop]: Difference is false [2021-10-21 20:05:09,734 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-10-21 20:05:09,734 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-10-21 20:05:09,754 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 109 states, 108 states have (on average 1.9444444444444444) internal successors, (210), 108 states have internal predecessors, (210), 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 20:05:09,785 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 76 [2021-10-21 20:05:09,785 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-21 20:05:09,785 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-21 20:05:09,793 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2021-10-21 20:05:09,794 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 20:05:09,794 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-10-21 20:05:09,795 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 109 states, 108 states have (on average 1.9444444444444444) internal successors, (210), 108 states have internal predecessors, (210), 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 20:05:09,804 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 76 [2021-10-21 20:05:09,804 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-21 20:05:09,805 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-21 20:05:09,805 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2021-10-21 20:05:09,806 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 20:05:09,814 INFO L791 eck$LassoCheckResult]: Stem: 97#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(16);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12);~m_Protocol~0 := 1;~m_msg_2~0 := 2;~m_recv_ack_2~0 := 3;~m_msg_1_1~0 := 4;~m_msg_1_2~0 := 5;~m_recv_ack_1_1~0 := 6;~m_recv_ack_1_2~0 := 7; 28#L-1true havoc main_#res;havoc main_#t~nondet7, main_#t~nondet8, main_#t~nondet9, main_#t~nondet10, main_#t~nondet11, main_#t~nondet12, main_#t~nondet13, main_#t~nondet14, main_#t~nondet15, main_#t~nondet16, main_#t~nondet17, main_#t~nondet18, main_#t~nondet19, main_#t~nondet20, main_#t~nondet21, main_#t~nondet22, main_#t~nondet23, main_#t~nondet24, main_#t~nondet25, main_#t~nondet26, main_#t~nondet27, main_#t~nondet28, main_#t~nondet29, main_#t~nondet30, main_#t~nondet31, main_#t~nondet32, main_#t~nondet33, main_#t~nondet34, main_#t~nondet35, main_#t~nondet36, main_#t~nondet37, main_#t~nondet38, main_#t~nondet39, main_#t~nondet40, main_#t~nondet41, main_#t~nondet42, main_#t~nondet43, main_#t~nondet44, main_#t~nondet45, main_#t~nondet46, main_~P1~0, main_~P2~0, main_~P3~0, main_~P4~0, main_~P5~0, main_~P6~0, main_~P7~0, main_~P8~0, main_~P9~0, main_~q~0, main_~method_id~0, main_~this_expect~0, main_~this_buffer_empty~0;main_~q~0 := 0;havoc main_~method_id~0;main_~this_expect~0 := 0;main_~this_buffer_empty~0 := 0; 46#L26-2true [2021-10-21 20:05:09,814 INFO L793 eck$LassoCheckResult]: Loop: 46#L26-2true goto; 48#L563true assume !false;main_~P1~0 := main_#t~nondet7;havoc main_#t~nondet7;main_~P2~0 := main_#t~nondet8;havoc main_#t~nondet8;main_~P3~0 := main_#t~nondet9;havoc main_#t~nondet9;main_~P4~0 := main_#t~nondet10;havoc main_#t~nondet10;main_~P5~0 := main_#t~nondet11;havoc main_#t~nondet11;main_~P6~0 := main_#t~nondet12;havoc main_#t~nondet12;main_~P7~0 := main_#t~nondet13;havoc main_#t~nondet13;main_~P8~0 := main_#t~nondet14;havoc main_#t~nondet14;main_~P9~0 := main_#t~nondet15;havoc main_#t~nondet15; 76#L40true assume !(main_~this_expect~0 > 16); 33#L40-2true assume !(0 == main_~q~0); 111#L65true assume !(1 == main_~q~0); 6#L165true assume !(2 == main_~q~0); 56#L265true assume !(3 == main_~q~0); 38#L365true assume !(4 == main_~q~0); 105#L465true assume !(5 == main_~q~0); 46#L26-2true [2021-10-21 20:05:09,821 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:05:09,821 INFO L82 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2021-10-21 20:05:09,832 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:05:09,833 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1741041275] [2021-10-21 20:05:09,833 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:05:09,835 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:05:09,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:05:09,941 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 20:05:09,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:05:09,981 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 20:05:09,985 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:05:09,985 INFO L82 PathProgramCache]: Analyzing trace with hash 2073703402, now seen corresponding path program 1 times [2021-10-21 20:05:09,985 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:05:09,986 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2107271455] [2021-10-21 20:05:09,986 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:05:09,987 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:05:09,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:05:09,996 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 20:05:10,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:05:10,007 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 20:05:10,009 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:05:10,010 INFO L82 PathProgramCache]: Analyzing trace with hash 2006272616, now seen corresponding path program 1 times [2021-10-21 20:05:10,010 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:05:10,010 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [618832395] [2021-10-21 20:05:10,011 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:05:10,011 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:05:10,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:05:10,091 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 20:05:10,092 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 20:05:10,092 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [618832395] [2021-10-21 20:05:10,093 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [618832395] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-21 20:05:10,093 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-21 20:05:10,094 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-21 20:05:10,094 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [108372314] [2021-10-21 20:05:10,255 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 20:05:10,271 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-21 20:05:10,272 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-21 20:05:10,277 INFO L87 Difference]: Start difference. First operand has 109 states, 108 states have (on average 1.9444444444444444) internal successors, (210), 108 states have internal predecessors, (210), 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 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:05:10,426 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 20:05:10,426 INFO L93 Difference]: Finished difference Result 113 states and 210 transitions. [2021-10-21 20:05:10,427 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-21 20:05:10,429 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 113 states and 210 transitions. [2021-10-21 20:05:10,449 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 79 [2021-10-21 20:05:10,454 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 113 states to 82 states and 125 transitions. [2021-10-21 20:05:10,455 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 82 [2021-10-21 20:05:10,456 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 82 [2021-10-21 20:05:10,456 INFO L73 IsDeterministic]: Start isDeterministic. Operand 82 states and 125 transitions. [2021-10-21 20:05:10,457 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-21 20:05:10,457 INFO L681 BuchiCegarLoop]: Abstraction has 82 states and 125 transitions. [2021-10-21 20:05:10,475 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82 states and 125 transitions. [2021-10-21 20:05:10,488 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82 to 82. [2021-10-21 20:05:10,489 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 82 states, 82 states have (on average 1.524390243902439) internal successors, (125), 81 states have internal predecessors, (125), 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 20:05:10,490 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 82 states and 125 transitions. [2021-10-21 20:05:10,491 INFO L704 BuchiCegarLoop]: Abstraction has 82 states and 125 transitions. [2021-10-21 20:05:10,491 INFO L587 BuchiCegarLoop]: Abstraction has 82 states and 125 transitions. [2021-10-21 20:05:10,491 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-10-21 20:05:10,491 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 82 states and 125 transitions. [2021-10-21 20:05:10,492 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 79 [2021-10-21 20:05:10,492 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-21 20:05:10,493 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-21 20:05:10,493 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2021-10-21 20:05:10,493 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2021-10-21 20:05:10,493 INFO L791 eck$LassoCheckResult]: Stem: 301#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(16);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12);~m_Protocol~0 := 1;~m_msg_2~0 := 2;~m_recv_ack_2~0 := 3;~m_msg_1_1~0 := 4;~m_msg_1_2~0 := 5;~m_recv_ack_1_1~0 := 6;~m_recv_ack_1_2~0 := 7; 288#L-1 havoc main_#res;havoc main_#t~nondet7, main_#t~nondet8, main_#t~nondet9, main_#t~nondet10, main_#t~nondet11, main_#t~nondet12, main_#t~nondet13, main_#t~nondet14, main_#t~nondet15, main_#t~nondet16, main_#t~nondet17, main_#t~nondet18, main_#t~nondet19, main_#t~nondet20, main_#t~nondet21, main_#t~nondet22, main_#t~nondet23, main_#t~nondet24, main_#t~nondet25, main_#t~nondet26, main_#t~nondet27, main_#t~nondet28, main_#t~nondet29, main_#t~nondet30, main_#t~nondet31, main_#t~nondet32, main_#t~nondet33, main_#t~nondet34, main_#t~nondet35, main_#t~nondet36, main_#t~nondet37, main_#t~nondet38, main_#t~nondet39, main_#t~nondet40, main_#t~nondet41, main_#t~nondet42, main_#t~nondet43, main_#t~nondet44, main_#t~nondet45, main_#t~nondet46, main_~P1~0, main_~P2~0, main_~P3~0, main_~P4~0, main_~P5~0, main_~P6~0, main_~P7~0, main_~P8~0, main_~P9~0, main_~q~0, main_~method_id~0, main_~this_expect~0, main_~this_buffer_empty~0;main_~q~0 := 0;havoc main_~method_id~0;main_~this_expect~0 := 0;main_~this_buffer_empty~0 := 0; 289#L26-2 goto; 255#L563 [2021-10-21 20:05:10,493 INFO L793 eck$LassoCheckResult]: Loop: 255#L563 assume !false;main_~P1~0 := main_#t~nondet7;havoc main_#t~nondet7;main_~P2~0 := main_#t~nondet8;havoc main_#t~nondet8;main_~P3~0 := main_#t~nondet9;havoc main_#t~nondet9;main_~P4~0 := main_#t~nondet10;havoc main_#t~nondet10;main_~P5~0 := main_#t~nondet11;havoc main_#t~nondet11;main_~P6~0 := main_#t~nondet12;havoc main_#t~nondet12;main_~P7~0 := main_#t~nondet13;havoc main_#t~nondet13;main_~P8~0 := main_#t~nondet14;havoc main_#t~nondet14;main_~P9~0 := main_#t~nondet15;havoc main_#t~nondet15; 277#L40 assume !(main_~this_expect~0 > 16); 278#L40-2 assume 0 == main_~q~0; 254#L46 assume !(0 != main_#t~nondet16);havoc main_#t~nondet16; 255#L563 [2021-10-21 20:05:10,494 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:05:10,494 INFO L82 PathProgramCache]: Analyzing trace with hash 29859, now seen corresponding path program 1 times [2021-10-21 20:05:10,494 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:05:10,495 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1123423128] [2021-10-21 20:05:10,495 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:05:10,495 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:05:10,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:05:10,510 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 20:05:10,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:05:10,528 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 20:05:10,529 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:05:10,529 INFO L82 PathProgramCache]: Analyzing trace with hash 1267254, now seen corresponding path program 1 times [2021-10-21 20:05:10,530 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:05:10,530 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1181810281] [2021-10-21 20:05:10,530 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:05:10,541 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:05:10,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:05:10,547 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 20:05:10,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:05:10,556 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 20:05:10,557 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:05:10,557 INFO L82 PathProgramCache]: Analyzing trace with hash 1805953496, now seen corresponding path program 1 times [2021-10-21 20:05:10,557 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:05:10,558 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1952239104] [2021-10-21 20:05:10,558 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:05:10,558 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:05:10,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:05:10,574 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 20:05:10,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:05:10,611 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 20:05:11,264 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 21.10 08:05:11 BoogieIcfgContainer [2021-10-21 20:05:11,264 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-10-21 20:05:11,265 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-21 20:05:11,265 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-21 20:05:11,266 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-21 20:05:11,266 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 08:05:09" (3/4) ... [2021-10-21 20:05:11,269 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2021-10-21 20:05:11,327 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a172b1f-75ce-4d92-995f-9da10b01d8b0/bin/uautomizer-j4sWxH34Be/witness.graphml [2021-10-21 20:05:11,327 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-21 20:05:11,329 INFO L168 Benchmark]: Toolchain (without parser) took 3453.54 ms. Allocated memory was 88.1 MB in the beginning and 134.2 MB in the end (delta: 46.1 MB). Free memory was 49.7 MB in the beginning and 72.4 MB in the end (delta: -22.7 MB). Peak memory consumption was 20.9 MB. Max. memory is 16.1 GB. [2021-10-21 20:05:11,330 INFO L168 Benchmark]: CDTParser took 0.26 ms. Allocated memory is still 88.1 MB. Free memory was 66.6 MB in the beginning and 66.5 MB in the end (delta: 70.0 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-21 20:05:11,331 INFO L168 Benchmark]: CACSL2BoogieTranslator took 491.13 ms. Allocated memory was 88.1 MB in the beginning and 111.1 MB in the end (delta: 23.1 MB). Free memory was 49.5 MB in the beginning and 77.7 MB in the end (delta: -28.2 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2021-10-21 20:05:11,332 INFO L168 Benchmark]: Boogie Procedure Inliner took 106.32 ms. Allocated memory is still 111.1 MB. Free memory was 77.7 MB in the beginning and 73.0 MB in the end (delta: 4.7 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-21 20:05:11,332 INFO L168 Benchmark]: Boogie Preprocessor took 108.29 ms. Allocated memory is still 111.1 MB. Free memory was 73.0 MB in the beginning and 70.3 MB in the end (delta: 2.7 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-21 20:05:11,336 INFO L168 Benchmark]: RCFGBuilder took 1052.65 ms. Allocated memory is still 111.1 MB. Free memory was 70.3 MB in the beginning and 83.8 MB in the end (delta: -13.5 MB). Peak memory consumption was 36.5 MB. Max. memory is 16.1 GB. [2021-10-21 20:05:11,337 INFO L168 Benchmark]: BuchiAutomizer took 1626.29 ms. Allocated memory was 111.1 MB in the beginning and 134.2 MB in the end (delta: 23.1 MB). Free memory was 83.7 MB in the beginning and 74.5 MB in the end (delta: 9.2 MB). Peak memory consumption was 31.1 MB. Max. memory is 16.1 GB. [2021-10-21 20:05:11,337 INFO L168 Benchmark]: Witness Printer took 62.51 ms. Allocated memory is still 134.2 MB. Free memory was 74.5 MB in the beginning and 72.4 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-21 20:05:11,341 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26 ms. Allocated memory is still 88.1 MB. Free memory was 66.6 MB in the beginning and 66.5 MB in the end (delta: 70.0 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 491.13 ms. Allocated memory was 88.1 MB in the beginning and 111.1 MB in the end (delta: 23.1 MB). Free memory was 49.5 MB in the beginning and 77.7 MB in the end (delta: -28.2 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 106.32 ms. Allocated memory is still 111.1 MB. Free memory was 77.7 MB in the beginning and 73.0 MB in the end (delta: 4.7 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 108.29 ms. Allocated memory is still 111.1 MB. Free memory was 73.0 MB in the beginning and 70.3 MB in the end (delta: 2.7 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1052.65 ms. Allocated memory is still 111.1 MB. Free memory was 70.3 MB in the beginning and 83.8 MB in the end (delta: -13.5 MB). Peak memory consumption was 36.5 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 1626.29 ms. Allocated memory was 111.1 MB in the beginning and 134.2 MB in the end (delta: 23.1 MB). Free memory was 83.7 MB in the beginning and 74.5 MB in the end (delta: 9.2 MB). Peak memory consumption was 31.1 MB. Max. memory is 16.1 GB. * Witness Printer took 62.51 ms. Allocated memory is still 134.2 MB. Free memory was 74.5 MB in the beginning and 72.4 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. 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 (1 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.1 modules have a trivial ranking function, the largest among these consists of 3 locations. The remainder module has 82 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 1.5s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 1.1s. Construction of modules took 0.0s. Büchi inclusion checks took 0.1s. Highest rank in rank-based complementation 0. Minimization of det autom 1. Minimization of nondet autom 0. Automata minimization 18.2ms AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 82 states and ocurred in iteration 1. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 204 SDtfs, 5 SDslu, 158 SDs, 0 SdLazy, 43 SolverSat, 1 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 72.7ms Time LassoAnalysisResults: nont1 unkn0 SFLI0 SFLT0 conc1 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: 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: 26]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=17979} State at position 1 is {NULL=0, m_Protocol=1, NULL=17979, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@84de330=14, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@221df369=23, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7377ede7=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5fb68279=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@d5f92f1=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4b3f9773=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@d716edc=21, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5f8e6c7c=18, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@383d50de=22, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@75f67a0b=19, NULL=0, NULL=0, P8=22, P6=21, P4=14, P2=17, this_buffer_empty=0, this_expect=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6aaeb25c=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3351898e=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7bb7fff8=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2d35c1f3=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@337ca518=0, m_recv_ack_1_2=7, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3216ba5b=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@d34486e=0, m_msg_1_1=4, NULL=17981, \result=0, m_recv_ack_2=3, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3363232b=15, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1a96aabc=17, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@17d8aea0=20, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@654db92b=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@16c9e77b=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4757b9b1=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@c605af5=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4c62a897=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2edcde52=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@46c2eb3=0, NULL=17980, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5d47e37a=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@27275352=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@291e12b1=0, NULL=0, P9=19, P7=18, NULL=17982, P5=23, P3=20, P1=15, m_msg_2=2, m_msg_1_2=5, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7eb5326=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6ca5ace8=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1d9c7397=0, q=0, m_recv_ack_1_1=6, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1d5dd54c=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6d578310=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4501dfb9=0, method_id=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2aafeb58=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7700ff48=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3683cfac=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@48fd1220=0} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 26]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L7] int m_Protocol = 1; [L8] int m_msg_2 = 2; [L9] int m_recv_ack_2 = 3; [L10] int m_msg_1_1 = 4; [L11] int m_msg_1_2 = 5; [L12] int m_recv_ack_1_1 = 6; [L13] int m_recv_ack_1_2 = 7; [L18] int q = 0; [L19] int method_id; [L22] int this_expect = 0; [L23] int this_buffer_empty = 0; Loop: [L26] COND TRUE 1 [L29] int P1=__VERIFIER_nondet_int(); [L30] int P2=__VERIFIER_nondet_int(); [L31] int P3=__VERIFIER_nondet_int(); [L32] int P4=__VERIFIER_nondet_int(); [L33] int P5=__VERIFIER_nondet_int(); [L34] int P6=__VERIFIER_nondet_int(); [L35] int P7=__VERIFIER_nondet_int(); [L36] int P8=__VERIFIER_nondet_int(); [L37] int P9=__VERIFIER_nondet_int(); [L40] COND FALSE !(this_expect > 16) [L45] COND TRUE q == 0 [L46] COND FALSE !(__VERIFIER_nondet_int()) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2021-10-21 20:05:11,416 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a172b1f-75ce-4d92-995f-9da10b01d8b0/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...