./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-restricted-15/Ex05.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 7e70badd Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8733f85-e725-4c80-9637-57a2dbfcc9e3/bin/uautomizer-wIGwrQj20G/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8733f85-e725-4c80-9637-57a2dbfcc9e3/bin/uautomizer-wIGwrQj20G/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8733f85-e725-4c80-9637-57a2dbfcc9e3/bin/uautomizer-wIGwrQj20G/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8733f85-e725-4c80-9637-57a2dbfcc9e3/bin/uautomizer-wIGwrQj20G/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-restricted-15/Ex05.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8733f85-e725-4c80-9637-57a2dbfcc9e3/bin/uautomizer-wIGwrQj20G/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8733f85-e725-4c80-9637-57a2dbfcc9e3/bin/uautomizer-wIGwrQj20G --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 64bit --witnessprinter.graph.data.programhash fe18722fa54a7078517ae7582e6099223a71d937bfeb5065d832643df19b81c8 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-7e70bad [2021-11-23 13:07:40,304 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 13:07:40,307 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 13:07:40,364 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 13:07:40,365 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 13:07:40,369 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 13:07:40,371 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 13:07:40,375 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 13:07:40,378 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 13:07:40,384 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 13:07:40,385 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 13:07:40,387 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 13:07:40,388 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 13:07:40,391 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 13:07:40,393 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 13:07:40,401 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 13:07:40,403 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 13:07:40,405 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 13:07:40,407 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 13:07:40,416 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 13:07:40,418 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 13:07:40,419 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 13:07:40,423 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 13:07:40,424 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 13:07:40,433 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 13:07:40,434 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 13:07:40,434 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 13:07:40,436 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 13:07:40,437 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 13:07:40,438 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 13:07:40,439 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 13:07:40,440 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 13:07:40,442 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 13:07:40,443 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 13:07:40,445 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 13:07:40,445 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 13:07:40,446 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 13:07:40,446 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 13:07:40,447 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 13:07:40,448 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 13:07:40,449 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 13:07:40,450 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8733f85-e725-4c80-9637-57a2dbfcc9e3/bin/uautomizer-wIGwrQj20G/config/svcomp-Termination-64bit-Automizer_Default.epf [2021-11-23 13:07:40,496 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 13:07:40,497 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 13:07:40,497 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-23 13:07:40,498 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-23 13:07:40,500 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-23 13:07:40,500 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-23 13:07:40,501 INFO L138 SettingsManager]: * Use SBE=true [2021-11-23 13:07:40,501 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-11-23 13:07:40,501 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-11-23 13:07:40,501 INFO L138 SettingsManager]: * Use old map elimination=false [2021-11-23 13:07:40,503 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-11-23 13:07:40,503 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-11-23 13:07:40,503 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-11-23 13:07:40,503 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 13:07:40,504 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-11-23 13:07:40,504 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-23 13:07:40,504 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 13:07:40,504 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-11-23 13:07:40,505 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-11-23 13:07:40,505 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-11-23 13:07:40,505 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-23 13:07:40,505 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-11-23 13:07:40,505 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 13:07:40,506 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-11-23 13:07:40,506 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 13:07:40,506 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-23 13:07:40,508 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 13:07:40,508 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-23 13:07:40,508 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-23 13:07:40,510 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-11-23 13:07:40,511 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_e8733f85-e725-4c80-9637-57a2dbfcc9e3/bin/uautomizer-wIGwrQj20G/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8733f85-e725-4c80-9637-57a2dbfcc9e3/bin/uautomizer-wIGwrQj20G Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> fe18722fa54a7078517ae7582e6099223a71d937bfeb5065d832643df19b81c8 [2021-11-23 13:07:40,827 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 13:07:40,865 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 13:07:40,868 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 13:07:40,869 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 13:07:40,870 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 13:07:40,871 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8733f85-e725-4c80-9637-57a2dbfcc9e3/bin/uautomizer-wIGwrQj20G/../../sv-benchmarks/c/termination-restricted-15/Ex05.c [2021-11-23 13:07:40,942 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8733f85-e725-4c80-9637-57a2dbfcc9e3/bin/uautomizer-wIGwrQj20G/data/8283415e2/4376b2ff64454b0597a212f272ae8abb/FLAG68c5f0527 [2021-11-23 13:07:41,395 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 13:07:41,395 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8733f85-e725-4c80-9637-57a2dbfcc9e3/sv-benchmarks/c/termination-restricted-15/Ex05.c [2021-11-23 13:07:41,402 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8733f85-e725-4c80-9637-57a2dbfcc9e3/bin/uautomizer-wIGwrQj20G/data/8283415e2/4376b2ff64454b0597a212f272ae8abb/FLAG68c5f0527 [2021-11-23 13:07:41,799 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8733f85-e725-4c80-9637-57a2dbfcc9e3/bin/uautomizer-wIGwrQj20G/data/8283415e2/4376b2ff64454b0597a212f272ae8abb [2021-11-23 13:07:41,801 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 13:07:41,803 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 13:07:41,805 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 13:07:41,805 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 13:07:41,808 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 13:07:41,809 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 01:07:41" (1/1) ... [2021-11-23 13:07:41,810 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@16c9a46c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:07:41, skipping insertion in model container [2021-11-23 13:07:41,810 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 01:07:41" (1/1) ... [2021-11-23 13:07:41,817 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 13:07:41,829 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 13:07:41,975 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 13:07:41,979 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 13:07:41,993 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 13:07:42,015 INFO L208 MainTranslator]: Completed translation [2021-11-23 13:07:42,016 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:07:42 WrapperNode [2021-11-23 13:07:42,016 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 13:07:42,018 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 13:07:42,018 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 13:07:42,018 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 13:07:42,026 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:07:42" (1/1) ... [2021-11-23 13:07:42,031 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:07:42" (1/1) ... [2021-11-23 13:07:42,047 INFO L137 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 11 [2021-11-23 13:07:42,048 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 13:07:42,049 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 13:07:42,049 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 13:07:42,049 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 13:07:42,058 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:07:42" (1/1) ... [2021-11-23 13:07:42,058 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:07:42" (1/1) ... [2021-11-23 13:07:42,059 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:07:42" (1/1) ... [2021-11-23 13:07:42,059 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:07:42" (1/1) ... [2021-11-23 13:07:42,061 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:07:42" (1/1) ... [2021-11-23 13:07:42,064 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:07:42" (1/1) ... [2021-11-23 13:07:42,065 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:07:42" (1/1) ... [2021-11-23 13:07:42,066 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 13:07:42,068 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 13:07:42,068 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 13:07:42,068 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 13:07:42,070 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:07:42" (1/1) ... [2021-11-23 13:07:42,078 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-23 13:07:42,091 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8733f85-e725-4c80-9637-57a2dbfcc9e3/bin/uautomizer-wIGwrQj20G/z3 [2021-11-23 13:07:42,111 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8733f85-e725-4c80-9637-57a2dbfcc9e3/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-23 13:07:42,127 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8733f85-e725-4c80-9637-57a2dbfcc9e3/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-11-23 13:07:42,159 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 13:07:42,160 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 13:07:42,219 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 13:07:42,221 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 13:07:42,268 INFO L277 CfgBuilder]: Performing block encoding [2021-11-23 13:07:42,275 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-23 13:07:42,275 INFO L301 CfgBuilder]: Removed 1 assume(true) statements. [2021-11-23 13:07:42,277 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 01:07:42 BoogieIcfgContainer [2021-11-23 13:07:42,278 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-23 13:07:42,279 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-11-23 13:07:42,279 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-11-23 13:07:42,282 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-11-23 13:07:42,283 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-11-23 13:07:42,284 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 23.11 01:07:41" (1/3) ... [2021-11-23 13:07:42,285 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@71f62d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 23.11 01:07:42, skipping insertion in model container [2021-11-23 13:07:42,286 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-11-23 13:07:42,286 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:07:42" (2/3) ... [2021-11-23 13:07:42,286 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@71f62d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 23.11 01:07:42, skipping insertion in model container [2021-11-23 13:07:42,287 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-11-23 13:07:42,287 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 01:07:42" (3/3) ... [2021-11-23 13:07:42,288 INFO L388 chiAutomizerObserver]: Analyzing ICFG Ex05.c [2021-11-23 13:07:42,337 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-11-23 13:07:42,337 INFO L360 BuchiCegarLoop]: Hoare is false [2021-11-23 13:07:42,337 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-11-23 13:07:42,338 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-11-23 13:07:42,338 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-11-23 13:07:42,338 INFO L364 BuchiCegarLoop]: Difference is false [2021-11-23 13:07:42,338 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-11-23 13:07:42,338 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-11-23 13:07:42,353 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 7 states, 6 states have (on average 1.3333333333333333) internal successors, (8), 6 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:07:42,371 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2021-11-23 13:07:42,372 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-23 13:07:42,372 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-23 13:07:42,378 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2021-11-23 13:07:42,378 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1] [2021-11-23 13:07:42,379 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-11-23 13:07:42,379 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 7 states, 6 states have (on average 1.3333333333333333) internal successors, (8), 6 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:07:42,380 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2021-11-23 13:07:42,380 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-23 13:07:42,380 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-23 13:07:42,381 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2021-11-23 13:07:42,381 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1] [2021-11-23 13:07:42,388 INFO L791 eck$LassoCheckResult]: Stem: 4#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true; 7#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_~i~0#1;havoc main_~i~0#1;main_~i~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1; 5#L9-2true [2021-11-23 13:07:42,388 INFO L793 eck$LassoCheckResult]: Loop: 5#L9-2true assume !!(0 != ~unnamed0~0~true); 5#L9-2true [2021-11-23 13:07:42,394 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 13:07:42,394 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2021-11-23 13:07:42,404 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 13:07:42,405 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [660734909] [2021-11-23 13:07:42,405 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 13:07:42,406 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 13:07:42,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-23 13:07:42,484 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-23 13:07:42,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-23 13:07:42,505 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-23 13:07:42,508 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 13:07:42,508 INFO L85 PathProgramCache]: Analyzing trace with hash 42, now seen corresponding path program 1 times [2021-11-23 13:07:42,508 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 13:07:42,509 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1728286177] [2021-11-23 13:07:42,509 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 13:07:42,509 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 13:07:42,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-23 13:07:42,515 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-23 13:07:42,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-23 13:07:42,518 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-23 13:07:42,520 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 13:07:42,520 INFO L85 PathProgramCache]: Analyzing trace with hash 29864, now seen corresponding path program 1 times [2021-11-23 13:07:42,520 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 13:07:42,521 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1943540101] [2021-11-23 13:07:42,521 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 13:07:42,521 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 13:07:42,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-23 13:07:42,526 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-23 13:07:42,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-23 13:07:42,530 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-23 13:07:42,587 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 23.11 01:07:42 BoogieIcfgContainer [2021-11-23 13:07:42,587 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-11-23 13:07:42,588 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-23 13:07:42,588 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-23 13:07:42,589 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-23 13:07:42,589 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 01:07:42" (3/4) ... [2021-11-23 13:07:42,592 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2021-11-23 13:07:42,621 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8733f85-e725-4c80-9637-57a2dbfcc9e3/bin/uautomizer-wIGwrQj20G/witness.graphml [2021-11-23 13:07:42,622 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-23 13:07:42,624 INFO L158 Benchmark]: Toolchain (without parser) took 819.88ms. Allocated memory was 81.8MB in the beginning and 98.6MB in the end (delta: 16.8MB). Free memory was 47.6MB in the beginning and 50.6MB in the end (delta: -3.0MB). Peak memory consumption was 11.7MB. Max. memory is 16.1GB. [2021-11-23 13:07:42,625 INFO L158 Benchmark]: CDTParser took 0.32ms. Allocated memory is still 81.8MB. Free memory was 54.2MB in the beginning and 54.1MB in the end (delta: 27.0kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 13:07:42,625 INFO L158 Benchmark]: CACSL2BoogieTranslator took 212.39ms. Allocated memory was 81.8MB in the beginning and 98.6MB in the end (delta: 16.8MB). Free memory was 47.4MB in the beginning and 76.2MB in the end (delta: -28.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-11-23 13:07:42,626 INFO L158 Benchmark]: Boogie Procedure Inliner took 30.20ms. Allocated memory is still 98.6MB. Free memory was 76.2MB in the beginning and 74.9MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 13:07:42,627 INFO L158 Benchmark]: Boogie Preprocessor took 18.29ms. Allocated memory is still 98.6MB. Free memory was 74.9MB in the beginning and 74.1MB in the end (delta: 789.7kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-23 13:07:42,628 INFO L158 Benchmark]: RCFGBuilder took 210.09ms. Allocated memory is still 98.6MB. Free memory was 74.1MB in the beginning and 66.9MB in the end (delta: 7.2MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2021-11-23 13:07:42,628 INFO L158 Benchmark]: BuchiAutomizer took 308.88ms. Allocated memory is still 98.6MB. Free memory was 66.9MB in the beginning and 52.2MB in the end (delta: 14.6MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2021-11-23 13:07:42,629 INFO L158 Benchmark]: Witness Printer took 33.67ms. Allocated memory is still 98.6MB. Free memory was 52.2MB in the beginning and 50.6MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-23 13:07:42,633 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32ms. Allocated memory is still 81.8MB. Free memory was 54.2MB in the beginning and 54.1MB in the end (delta: 27.0kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 212.39ms. Allocated memory was 81.8MB in the beginning and 98.6MB in the end (delta: 16.8MB). Free memory was 47.4MB in the beginning and 76.2MB in the end (delta: -28.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 30.20ms. Allocated memory is still 98.6MB. Free memory was 76.2MB in the beginning and 74.9MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 18.29ms. Allocated memory is still 98.6MB. Free memory was 74.9MB in the beginning and 74.1MB in the end (delta: 789.7kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 210.09ms. Allocated memory is still 98.6MB. Free memory was 74.1MB in the beginning and 66.9MB in the end (delta: 7.2MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * BuchiAutomizer took 308.88ms. Allocated memory is still 98.6MB. Free memory was 66.9MB in the beginning and 52.2MB in the end (delta: 14.6MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Witness Printer took 33.67ms. Allocated memory is still 98.6MB. Free memory was 52.2MB in the beginning and 50.6MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Trivial decomposition into one nonterminating module. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 0.2s and 1 iterations. TraceHistogramMax:1. Analysis of lassos took 0.1s. Construction of modules took 0.0s. Büchi inclusion checks took 0.0s. Highest rank in rank-based complementation 0. Minimization of det autom 0. 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 -1 states and ocurred in iteration -1. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: LassoAnalysisResults: nont1 unkn0 SFLI0 SFLT0 conc0 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: 9]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {} State at position 1 is {i=0, \result=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4c4049bb=0} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 9]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L6] int i; [L7] i = __VERIFIER_nondet_int() Loop: [L9] COND TRUE \read(true) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2021-11-23 13:07:42,684 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8733f85-e725-4c80-9637-57a2dbfcc9e3/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(TERM)