./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/loops/while_infinite_loop_1.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version b2eff8ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63580ad6-42c7-493c-947d-1ec9ccd1ee69/bin/uautomizer-UnR33cPsHg/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63580ad6-42c7-493c-947d-1ec9ccd1ee69/bin/uautomizer-UnR33cPsHg/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63580ad6-42c7-493c-947d-1ec9ccd1ee69/bin/uautomizer-UnR33cPsHg/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63580ad6-42c7-493c-947d-1ec9ccd1ee69/bin/uautomizer-UnR33cPsHg/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/loops/while_infinite_loop_1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63580ad6-42c7-493c-947d-1ec9ccd1ee69/bin/uautomizer-UnR33cPsHg/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63580ad6-42c7-493c-947d-1ec9ccd1ee69/bin/uautomizer-UnR33cPsHg --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 6835149c4278fd8af0ce273d8cc15b325ec6738caba22fa2c7b2c4b417fc898f .................................................................................................................................................................................................................................................................................. 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-b2eff8b [2021-10-28 09:16:14,453 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-28 09:16:14,457 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-28 09:16:14,531 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-28 09:16:14,532 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-28 09:16:14,538 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-28 09:16:14,541 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-28 09:16:14,547 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-28 09:16:14,550 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-28 09:16:14,559 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-28 09:16:14,561 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-28 09:16:14,563 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-28 09:16:14,564 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-28 09:16:14,567 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-28 09:16:14,570 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-28 09:16:14,576 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-28 09:16:14,578 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-28 09:16:14,580 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-28 09:16:14,582 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-28 09:16:14,593 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-28 09:16:14,595 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-28 09:16:14,597 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-28 09:16:14,601 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-28 09:16:14,602 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-28 09:16:14,607 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-28 09:16:14,607 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-28 09:16:14,608 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-28 09:16:14,611 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-28 09:16:14,612 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-28 09:16:14,613 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-28 09:16:14,614 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-28 09:16:14,615 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-28 09:16:14,617 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-28 09:16:14,619 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-28 09:16:14,621 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-28 09:16:14,621 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-28 09:16:14,622 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-28 09:16:14,623 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-28 09:16:14,623 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-28 09:16:14,624 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-28 09:16:14,625 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-28 09:16:14,626 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63580ad6-42c7-493c-947d-1ec9ccd1ee69/bin/uautomizer-UnR33cPsHg/config/svcomp-Termination-32bit-Automizer_Default.epf [2021-10-28 09:16:14,681 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-28 09:16:14,682 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-28 09:16:14,683 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-28 09:16:14,683 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-28 09:16:14,684 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-28 09:16:14,685 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-28 09:16:14,685 INFO L138 SettingsManager]: * Use SBE=true [2021-10-28 09:16:14,686 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-10-28 09:16:14,686 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-10-28 09:16:14,686 INFO L138 SettingsManager]: * Use old map elimination=false [2021-10-28 09:16:14,687 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-10-28 09:16:14,688 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-10-28 09:16:14,688 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-10-28 09:16:14,688 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-28 09:16:14,689 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-28 09:16:14,689 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-28 09:16:14,689 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-28 09:16:14,690 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-28 09:16:14,690 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-28 09:16:14,690 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-10-28 09:16:14,690 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-10-28 09:16:14,691 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-10-28 09:16:14,691 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-28 09:16:14,691 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-28 09:16:14,692 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-10-28 09:16:14,692 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-28 09:16:14,694 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-10-28 09:16:14,694 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-28 09:16:14,695 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-28 09:16:14,695 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-28 09:16:14,695 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-28 09:16:14,696 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-28 09:16:14,697 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-10-28 09:16:14,698 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_63580ad6-42c7-493c-947d-1ec9ccd1ee69/bin/uautomizer-UnR33cPsHg/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63580ad6-42c7-493c-947d-1ec9ccd1ee69/bin/uautomizer-UnR33cPsHg Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6835149c4278fd8af0ce273d8cc15b325ec6738caba22fa2c7b2c4b417fc898f [2021-10-28 09:16:15,033 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-28 09:16:15,074 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-28 09:16:15,077 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-28 09:16:15,079 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-28 09:16:15,080 INFO L275 PluginConnector]: CDTParser initialized [2021-10-28 09:16:15,082 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63580ad6-42c7-493c-947d-1ec9ccd1ee69/bin/uautomizer-UnR33cPsHg/../../sv-benchmarks/c/loops/while_infinite_loop_1.c [2021-10-28 09:16:15,163 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63580ad6-42c7-493c-947d-1ec9ccd1ee69/bin/uautomizer-UnR33cPsHg/data/93832e428/e8b934fc951e4647a33d62124b452814/FLAG901963b22 [2021-10-28 09:16:15,767 INFO L306 CDTParser]: Found 1 translation units. [2021-10-28 09:16:15,768 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63580ad6-42c7-493c-947d-1ec9ccd1ee69/sv-benchmarks/c/loops/while_infinite_loop_1.c [2021-10-28 09:16:15,772 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63580ad6-42c7-493c-947d-1ec9ccd1ee69/bin/uautomizer-UnR33cPsHg/data/93832e428/e8b934fc951e4647a33d62124b452814/FLAG901963b22 [2021-10-28 09:16:16,147 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63580ad6-42c7-493c-947d-1ec9ccd1ee69/bin/uautomizer-UnR33cPsHg/data/93832e428/e8b934fc951e4647a33d62124b452814 [2021-10-28 09:16:16,151 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-28 09:16:16,156 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-28 09:16:16,161 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-28 09:16:16,161 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-28 09:16:16,166 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-28 09:16:16,167 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 09:16:16" (1/1) ... [2021-10-28 09:16:16,168 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1bf336e0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:16:16, skipping insertion in model container [2021-10-28 09:16:16,168 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 09:16:16" (1/1) ... [2021-10-28 09:16:16,178 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-28 09:16:16,203 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-28 09:16:16,369 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_63580ad6-42c7-493c-947d-1ec9ccd1ee69/sv-benchmarks/c/loops/while_infinite_loop_1.c[333,346] [2021-10-28 09:16:16,375 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 09:16:16,384 INFO L203 MainTranslator]: Completed pre-run [2021-10-28 09:16:16,395 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_63580ad6-42c7-493c-947d-1ec9ccd1ee69/sv-benchmarks/c/loops/while_infinite_loop_1.c[333,346] [2021-10-28 09:16:16,397 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 09:16:16,413 INFO L208 MainTranslator]: Completed translation [2021-10-28 09:16:16,413 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:16:16 WrapperNode [2021-10-28 09:16:16,413 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-28 09:16:16,415 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-28 09:16:16,415 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-28 09:16:16,415 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-28 09:16:16,424 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:16:16" (1/1) ... [2021-10-28 09:16:16,432 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:16:16" (1/1) ... [2021-10-28 09:16:16,452 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-28 09:16:16,453 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-28 09:16:16,454 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-28 09:16:16,454 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-28 09:16:16,464 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:16:16" (1/1) ... [2021-10-28 09:16:16,464 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:16:16" (1/1) ... [2021-10-28 09:16:16,465 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:16:16" (1/1) ... [2021-10-28 09:16:16,466 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:16:16" (1/1) ... [2021-10-28 09:16:16,469 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:16:16" (1/1) ... [2021-10-28 09:16:16,473 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:16:16" (1/1) ... [2021-10-28 09:16:16,474 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:16:16" (1/1) ... [2021-10-28 09:16:16,476 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-28 09:16:16,477 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-28 09:16:16,477 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-28 09:16:16,478 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-28 09:16:16,479 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:16:16" (1/1) ... [2021-10-28 09:16:16,489 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:16:16,502 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63580ad6-42c7-493c-947d-1ec9ccd1ee69/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:16:16,522 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63580ad6-42c7-493c-947d-1ec9ccd1ee69/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:16:16,527 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63580ad6-42c7-493c-947d-1ec9ccd1ee69/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-10-28 09:16:16,575 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-28 09:16:16,576 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-28 09:16:16,576 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-28 09:16:16,576 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-28 09:16:16,848 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-28 09:16:16,849 INFO L299 CfgBuilder]: Removed 9 assume(true) statements. [2021-10-28 09:16:16,852 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 09:16:16 BoogieIcfgContainer [2021-10-28 09:16:16,853 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-28 09:16:16,854 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-10-28 09:16:16,854 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-10-28 09:16:16,859 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-10-28 09:16:16,860 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-28 09:16:16,860 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 28.10 09:16:16" (1/3) ... [2021-10-28 09:16:16,862 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@31e9092c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.10 09:16:16, skipping insertion in model container [2021-10-28 09:16:16,862 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-28 09:16:16,863 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:16:16" (2/3) ... [2021-10-28 09:16:16,864 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@31e9092c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.10 09:16:16, skipping insertion in model container [2021-10-28 09:16:16,864 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-28 09:16:16,864 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 09:16:16" (3/3) ... [2021-10-28 09:16:16,866 INFO L389 chiAutomizerObserver]: Analyzing ICFG while_infinite_loop_1.c [2021-10-28 09:16:16,925 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-10-28 09:16:16,925 INFO L360 BuchiCegarLoop]: Hoare is false [2021-10-28 09:16:16,926 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-10-28 09:16:16,926 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-10-28 09:16:16,926 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-10-28 09:16:16,926 INFO L364 BuchiCegarLoop]: Difference is false [2021-10-28 09:16:16,926 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-10-28 09:16:16,927 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-10-28 09:16:16,945 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) [2021-10-28 09:16:16,967 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2021-10-28 09:16:16,968 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 09:16:16,968 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 09:16:16,975 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2021-10-28 09:16:16,991 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-10-28 09:16:16,992 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-10-28 09:16:16,992 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) [2021-10-28 09:16:16,994 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2021-10-28 09:16:16,995 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 09:16:16,995 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 09:16:16,995 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2021-10-28 09:16:16,995 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-10-28 09:16:17,003 INFO L791 eck$LassoCheckResult]: Stem: 5#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(24);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12); 9#L-1true havoc main_#res;havoc main_~x~0;main_~x~0 := 0; 6#L6-2true [2021-10-28 09:16:17,004 INFO L793 eck$LassoCheckResult]: Loop: 6#L6-2true assume !false;__VERIFIER_assert_#in~cond := (if 0 == main_~x~0 then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond; 7#L6true assume !(0 == __VERIFIER_assert_~cond); 6#L6-2true [2021-10-28 09:16:17,010 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:16:17,010 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2021-10-28 09:16:17,021 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:16:17,022 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [535826435] [2021-10-28 09:16:17,022 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:16:17,024 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:16:17,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:16:17,176 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 09:16:17,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:16:17,239 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 09:16:17,242 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:16:17,243 INFO L85 PathProgramCache]: Analyzing trace with hash 1320, now seen corresponding path program 1 times [2021-10-28 09:16:17,243 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:16:17,244 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [213848354] [2021-10-28 09:16:17,244 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:16:17,244 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:16:17,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:16:17,256 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 09:16:17,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:16:17,272 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 09:16:17,274 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:16:17,274 INFO L85 PathProgramCache]: Analyzing trace with hash 925802, now seen corresponding path program 1 times [2021-10-28 09:16:17,274 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:16:17,275 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1406963045] [2021-10-28 09:16:17,275 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:16:17,275 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:16:17,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:16:17,299 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 09:16:17,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:16:17,328 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 09:16:17,907 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 28.10 09:16:17 BoogieIcfgContainer [2021-10-28 09:16:17,907 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-10-28 09:16:17,908 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-28 09:16:17,908 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-28 09:16:17,909 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-28 09:16:17,909 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 09:16:16" (3/4) ... [2021-10-28 09:16:17,913 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2021-10-28 09:16:17,953 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63580ad6-42c7-493c-947d-1ec9ccd1ee69/bin/uautomizer-UnR33cPsHg/witness.graphml [2021-10-28 09:16:17,954 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-28 09:16:17,956 INFO L168 Benchmark]: Toolchain (without parser) took 1798.57 ms. Allocated memory was 123.7 MB in the beginning and 159.4 MB in the end (delta: 35.7 MB). Free memory was 93.8 MB in the beginning and 128.8 MB in the end (delta: -35.1 MB). Peak memory consumption was 798.6 kB. Max. memory is 16.1 GB. [2021-10-28 09:16:17,958 INFO L168 Benchmark]: CDTParser took 0.33 ms. Allocated memory is still 123.7 MB. Free memory is still 77.6 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 09:16:17,961 INFO L168 Benchmark]: CACSL2BoogieTranslator took 253.10 ms. Allocated memory is still 123.7 MB. Free memory was 93.8 MB in the beginning and 97.4 MB in the end (delta: -3.6 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-28 09:16:17,963 INFO L168 Benchmark]: Boogie Procedure Inliner took 37.83 ms. Allocated memory is still 123.7 MB. Free memory was 97.4 MB in the beginning and 96.1 MB in the end (delta: 1.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-28 09:16:17,964 INFO L168 Benchmark]: Boogie Preprocessor took 23.18 ms. Allocated memory is still 123.7 MB. Free memory was 96.1 MB in the beginning and 95.2 MB in the end (delta: 943.9 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 09:16:17,967 INFO L168 Benchmark]: RCFGBuilder took 376.00 ms. Allocated memory is still 123.7 MB. Free memory was 94.9 MB in the beginning and 86.2 MB in the end (delta: 8.7 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-28 09:16:17,969 INFO L168 Benchmark]: BuchiAutomizer took 1053.13 ms. Allocated memory was 123.7 MB in the beginning and 159.4 MB in the end (delta: 35.7 MB). Free memory was 86.0 MB in the beginning and 130.1 MB in the end (delta: -44.0 MB). Peak memory consumption was 34.1 MB. Max. memory is 16.1 GB. [2021-10-28 09:16:17,970 INFO L168 Benchmark]: Witness Printer took 45.59 ms. Allocated memory is still 159.4 MB. Free memory was 130.1 MB in the beginning and 128.8 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-28 09:16:17,976 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.33 ms. Allocated memory is still 123.7 MB. Free memory is still 77.6 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 253.10 ms. Allocated memory is still 123.7 MB. Free memory was 93.8 MB in the beginning and 97.4 MB in the end (delta: -3.6 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 37.83 ms. Allocated memory is still 123.7 MB. Free memory was 97.4 MB in the beginning and 96.1 MB in the end (delta: 1.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 23.18 ms. Allocated memory is still 123.7 MB. Free memory was 96.1 MB in the beginning and 95.2 MB in the end (delta: 943.9 kB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 376.00 ms. Allocated memory is still 123.7 MB. Free memory was 94.9 MB in the beginning and 86.2 MB in the end (delta: 8.7 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 1053.13 ms. Allocated memory was 123.7 MB in the beginning and 159.4 MB in the end (delta: 35.7 MB). Free memory was 86.0 MB in the beginning and 130.1 MB in the end (delta: -44.0 MB). Peak memory consumption was 34.1 MB. Max. memory is 16.1 GB. * Witness Printer took 45.59 ms. Allocated memory is still 159.4 MB. Free memory was 130.1 MB in the beginning and 128.8 MB in the end (delta: 1.3 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 Trivial decomposition into one nonterminating module. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 0.9s and 1 iterations. TraceHistogramMax:1. Analysis of lassos took 0.8s. 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: No data available 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: 1]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=15329} State at position 1 is {cond=1, NULL=0, NULL=0, NULL=0, NULL=15330, NULL=0, \result=0, NULL=15332, NULL=15329, \old(cond)=1, NULL=0, x=0, NULL=15331} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 5]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L13] int x=0; Loop: [L15] COND TRUE 1 [L6] COND FALSE !(!(cond)) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2021-10-28 09:16:18,051 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63580ad6-42c7-493c-947d-1ec9ccd1ee69/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...