./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/loops/while_infinite_loop_2.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 839c364b Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2f0a72a-9453-4227-ad3d-9e17de4c96cd/bin/uautomizer-DrprNOufMa/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2f0a72a-9453-4227-ad3d-9e17de4c96cd/bin/uautomizer-DrprNOufMa/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2f0a72a-9453-4227-ad3d-9e17de4c96cd/bin/uautomizer-DrprNOufMa/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2f0a72a-9453-4227-ad3d-9e17de4c96cd/bin/uautomizer-DrprNOufMa/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/loops/while_infinite_loop_2.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2f0a72a-9453-4227-ad3d-9e17de4c96cd/bin/uautomizer-DrprNOufMa/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2f0a72a-9453-4227-ad3d-9e17de4c96cd/bin/uautomizer-DrprNOufMa --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 2285a0532f76c71ed3da856eea9f62f11be9df4ff1d205bf57c17e8ec94f6df8 --- Real Ultimate output --- This is Ultimate 0.2.2-hotfix-svcomp22-839c364 [2021-12-07 00:16:34,456 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-07 00:16:34,458 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-07 00:16:34,480 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-07 00:16:34,480 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-07 00:16:34,481 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-07 00:16:34,482 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-07 00:16:34,484 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-07 00:16:34,485 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-07 00:16:34,486 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-07 00:16:34,487 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-07 00:16:34,488 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-07 00:16:34,489 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-07 00:16:34,489 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-07 00:16:34,491 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-07 00:16:34,492 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-07 00:16:34,492 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-07 00:16:34,493 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-07 00:16:34,495 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-07 00:16:34,497 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-07 00:16:34,499 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-07 00:16:34,500 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-07 00:16:34,501 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-07 00:16:34,502 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-07 00:16:34,504 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-07 00:16:34,505 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-07 00:16:34,505 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-07 00:16:34,506 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-07 00:16:34,506 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-07 00:16:34,507 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-07 00:16:34,507 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-07 00:16:34,508 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-07 00:16:34,508 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-07 00:16:34,509 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-07 00:16:34,510 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-07 00:16:34,510 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-07 00:16:34,510 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-07 00:16:34,511 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-07 00:16:34,511 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-07 00:16:34,511 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-07 00:16:34,512 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-07 00:16:34,513 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2f0a72a-9453-4227-ad3d-9e17de4c96cd/bin/uautomizer-DrprNOufMa/config/svcomp-Termination-32bit-Automizer_Default.epf [2021-12-07 00:16:34,538 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-07 00:16:34,538 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-07 00:16:34,538 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-07 00:16:34,539 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-07 00:16:34,539 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-07 00:16:34,540 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-07 00:16:34,540 INFO L138 SettingsManager]: * Use SBE=true [2021-12-07 00:16:34,540 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-12-07 00:16:34,540 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-12-07 00:16:34,540 INFO L138 SettingsManager]: * Use old map elimination=false [2021-12-07 00:16:34,540 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-12-07 00:16:34,540 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-12-07 00:16:34,540 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-12-07 00:16:34,540 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-07 00:16:34,541 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-07 00:16:34,541 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-12-07 00:16:34,541 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-07 00:16:34,541 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-07 00:16:34,541 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-07 00:16:34,541 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-12-07 00:16:34,541 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-12-07 00:16:34,541 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-12-07 00:16:34,541 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-07 00:16:34,541 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-07 00:16:34,542 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-12-07 00:16:34,542 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-07 00:16:34,542 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-12-07 00:16:34,542 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-07 00:16:34,542 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-07 00:16:34,542 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-07 00:16:34,542 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-07 00:16:34,542 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-07 00:16:34,543 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-12-07 00:16:34,543 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_e2f0a72a-9453-4227-ad3d-9e17de4c96cd/bin/uautomizer-DrprNOufMa/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2f0a72a-9453-4227-ad3d-9e17de4c96cd/bin/uautomizer-DrprNOufMa Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2285a0532f76c71ed3da856eea9f62f11be9df4ff1d205bf57c17e8ec94f6df8 [2021-12-07 00:16:34,730 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-07 00:16:34,745 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-07 00:16:34,747 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-07 00:16:34,747 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-07 00:16:34,748 INFO L275 PluginConnector]: CDTParser initialized [2021-12-07 00:16:34,749 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2f0a72a-9453-4227-ad3d-9e17de4c96cd/bin/uautomizer-DrprNOufMa/../../sv-benchmarks/c/loops/while_infinite_loop_2.c [2021-12-07 00:16:34,800 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2f0a72a-9453-4227-ad3d-9e17de4c96cd/bin/uautomizer-DrprNOufMa/data/1dd031f37/ebbcfc0d80dc464aa3a4544e692028e7/FLAG5c825bfc4 [2021-12-07 00:16:35,160 INFO L306 CDTParser]: Found 1 translation units. [2021-12-07 00:16:35,160 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2f0a72a-9453-4227-ad3d-9e17de4c96cd/sv-benchmarks/c/loops/while_infinite_loop_2.c [2021-12-07 00:16:35,164 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2f0a72a-9453-4227-ad3d-9e17de4c96cd/bin/uautomizer-DrprNOufMa/data/1dd031f37/ebbcfc0d80dc464aa3a4544e692028e7/FLAG5c825bfc4 [2021-12-07 00:16:35,175 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2f0a72a-9453-4227-ad3d-9e17de4c96cd/bin/uautomizer-DrprNOufMa/data/1dd031f37/ebbcfc0d80dc464aa3a4544e692028e7 [2021-12-07 00:16:35,177 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-07 00:16:35,178 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-07 00:16:35,179 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-07 00:16:35,179 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-07 00:16:35,181 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-07 00:16:35,182 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 12:16:35" (1/1) ... [2021-12-07 00:16:35,183 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@a93f433 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:16:35, skipping insertion in model container [2021-12-07 00:16:35,183 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 12:16:35" (1/1) ... [2021-12-07 00:16:35,188 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-07 00:16:35,198 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-07 00:16:35,318 WARN L230 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_e2f0a72a-9453-4227-ad3d-9e17de4c96cd/sv-benchmarks/c/loops/while_infinite_loop_2.c[333,346] [2021-12-07 00:16:35,322 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-07 00:16:35,329 INFO L203 MainTranslator]: Completed pre-run [2021-12-07 00:16:35,337 WARN L230 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_e2f0a72a-9453-4227-ad3d-9e17de4c96cd/sv-benchmarks/c/loops/while_infinite_loop_2.c[333,346] [2021-12-07 00:16:35,338 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-07 00:16:35,348 INFO L208 MainTranslator]: Completed translation [2021-12-07 00:16:35,348 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:16:35 WrapperNode [2021-12-07 00:16:35,348 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-07 00:16:35,349 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-07 00:16:35,349 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-07 00:16:35,349 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-07 00:16:35,355 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:16:35" (1/1) ... [2021-12-07 00:16:35,359 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:16:35" (1/1) ... [2021-12-07 00:16:35,370 INFO L137 Inliner]: procedures = 12, calls = 9, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 29 [2021-12-07 00:16:35,371 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-07 00:16:35,371 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-07 00:16:35,371 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-07 00:16:35,371 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-07 00:16:35,377 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:16:35" (1/1) ... [2021-12-07 00:16:35,377 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:16:35" (1/1) ... [2021-12-07 00:16:35,378 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:16:35" (1/1) ... [2021-12-07 00:16:35,378 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:16:35" (1/1) ... [2021-12-07 00:16:35,380 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:16:35" (1/1) ... [2021-12-07 00:16:35,382 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:16:35" (1/1) ... [2021-12-07 00:16:35,383 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:16:35" (1/1) ... [2021-12-07 00:16:35,384 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-07 00:16:35,384 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-07 00:16:35,384 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-07 00:16:35,384 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-07 00:16:35,385 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:16:35" (1/1) ... [2021-12-07 00:16:35,391 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-07 00:16:35,398 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2f0a72a-9453-4227-ad3d-9e17de4c96cd/bin/uautomizer-DrprNOufMa/z3 [2021-12-07 00:16:35,409 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2f0a72a-9453-4227-ad3d-9e17de4c96cd/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-07 00:16:35,412 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2f0a72a-9453-4227-ad3d-9e17de4c96cd/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-12-07 00:16:35,448 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-07 00:16:35,449 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-07 00:16:35,449 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-07 00:16:35,449 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-07 00:16:35,496 INFO L236 CfgBuilder]: Building ICFG [2021-12-07 00:16:35,498 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-07 00:16:35,547 INFO L277 CfgBuilder]: Performing block encoding [2021-12-07 00:16:35,553 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-07 00:16:35,553 INFO L301 CfgBuilder]: Removed 1 assume(true) statements. [2021-12-07 00:16:35,554 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 12:16:35 BoogieIcfgContainer [2021-12-07 00:16:35,555 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-07 00:16:35,556 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-12-07 00:16:35,556 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-12-07 00:16:35,559 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-12-07 00:16:35,559 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-07 00:16:35,559 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 07.12 12:16:35" (1/3) ... [2021-12-07 00:16:35,560 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@10c04ec2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 07.12 12:16:35, skipping insertion in model container [2021-12-07 00:16:35,560 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-07 00:16:35,560 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:16:35" (2/3) ... [2021-12-07 00:16:35,561 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@10c04ec2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 07.12 12:16:35, skipping insertion in model container [2021-12-07 00:16:35,561 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-07 00:16:35,561 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 12:16:35" (3/3) ... [2021-12-07 00:16:35,562 INFO L388 chiAutomizerObserver]: Analyzing ICFG while_infinite_loop_2.c [2021-12-07 00:16:35,596 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-12-07 00:16:35,596 INFO L360 BuchiCegarLoop]: Hoare is false [2021-12-07 00:16:35,596 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-12-07 00:16:35,596 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-12-07 00:16:35,596 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-12-07 00:16:35,596 INFO L364 BuchiCegarLoop]: Difference is false [2021-12-07 00:16:35,596 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-12-07 00:16:35,596 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-12-07 00:16:35,606 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 13 states, 12 states have (on average 1.3333333333333333) internal successors, (16), 12 states have internal predecessors, (16), 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) [2021-12-07 00:16:35,619 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2021-12-07 00:16:35,619 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-07 00:16:35,619 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-07 00:16:35,624 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2021-12-07 00:16:35,624 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-12-07 00:16:35,624 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-12-07 00:16:35,624 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 13 states, 12 states have (on average 1.3333333333333333) internal successors, (16), 12 states have internal predecessors, (16), 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) [2021-12-07 00:16:35,625 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2021-12-07 00:16:35,625 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-07 00:16:35,626 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-07 00:16:35,626 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2021-12-07 00:16:35,626 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-12-07 00:16:35,630 INFO L791 eck$LassoCheckResult]: Stem: 4#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(24, 2);call #Ultimate.allocInit(12, 3); 6#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_~x~0#1;main_~x~0#1 := 0; 14#L14-2true [2021-12-07 00:16:35,631 INFO L793 eck$LassoCheckResult]: Loop: 14#L14-2true assume !false;assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if 0 == main_~x~0#1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 11#L6true assume !(0 == __VERIFIER_assert_~cond#1); 5#L6-2true assume { :end_inline___VERIFIER_assert } true; 14#L14-2true [2021-12-07 00:16:35,637 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 00:16:35,637 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2021-12-07 00:16:35,646 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 00:16:35,646 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1670885513] [2021-12-07 00:16:35,646 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 00:16:35,647 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 00:16:35,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-07 00:16:35,717 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-07 00:16:35,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-07 00:16:35,736 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-07 00:16:35,738 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 00:16:35,738 INFO L85 PathProgramCache]: Analyzing trace with hash 40941, now seen corresponding path program 1 times [2021-12-07 00:16:35,738 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 00:16:35,738 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1611737862] [2021-12-07 00:16:35,739 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 00:16:35,739 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 00:16:35,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-07 00:16:35,745 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-07 00:16:35,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-07 00:16:35,750 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-07 00:16:35,751 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 00:16:35,752 INFO L85 PathProgramCache]: Analyzing trace with hash 28699883, now seen corresponding path program 1 times [2021-12-07 00:16:35,752 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 00:16:35,752 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [51905709] [2021-12-07 00:16:35,752 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 00:16:35,752 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 00:16:35,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-07 00:16:35,762 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-07 00:16:35,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-07 00:16:35,771 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-07 00:16:35,979 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 07.12 12:16:35 BoogieIcfgContainer [2021-12-07 00:16:35,979 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-12-07 00:16:35,980 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-12-07 00:16:35,980 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-12-07 00:16:35,980 INFO L275 PluginConnector]: Witness Printer initialized [2021-12-07 00:16:35,980 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 12:16:35" (3/4) ... [2021-12-07 00:16:35,983 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2021-12-07 00:16:36,008 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2f0a72a-9453-4227-ad3d-9e17de4c96cd/bin/uautomizer-DrprNOufMa/witness.graphml [2021-12-07 00:16:36,008 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-12-07 00:16:36,009 INFO L158 Benchmark]: Toolchain (without parser) took 830.31ms. Allocated memory is still 115.3MB. Free memory was 79.5MB in the beginning and 57.4MB in the end (delta: 22.1MB). Peak memory consumption was 20.3MB. Max. memory is 16.1GB. [2021-12-07 00:16:36,009 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 115.3MB. Free memory is still 95.6MB. There was no memory consumed. Max. memory is 16.1GB. [2021-12-07 00:16:36,010 INFO L158 Benchmark]: CACSL2BoogieTranslator took 169.34ms. Allocated memory is still 115.3MB. Free memory was 79.3MB in the beginning and 92.0MB in the end (delta: -12.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-12-07 00:16:36,011 INFO L158 Benchmark]: Boogie Procedure Inliner took 21.99ms. Allocated memory is still 115.3MB. Free memory was 92.0MB in the beginning and 90.8MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-07 00:16:36,011 INFO L158 Benchmark]: Boogie Preprocessor took 12.44ms. Allocated memory is still 115.3MB. Free memory was 90.8MB in the beginning and 89.8MB in the end (delta: 990.2kB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-07 00:16:36,012 INFO L158 Benchmark]: RCFGBuilder took 170.48ms. Allocated memory is still 115.3MB. Free memory was 89.8MB in the beginning and 81.5MB in the end (delta: 8.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-12-07 00:16:36,013 INFO L158 Benchmark]: BuchiAutomizer took 423.50ms. Allocated memory is still 115.3MB. Free memory was 81.5MB in the beginning and 59.0MB in the end (delta: 22.6MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2021-12-07 00:16:36,013 INFO L158 Benchmark]: Witness Printer took 28.16ms. Allocated memory is still 115.3MB. Free memory was 59.0MB in the beginning and 57.4MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-07 00:16:36,017 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13ms. Allocated memory is still 115.3MB. Free memory is still 95.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 169.34ms. Allocated memory is still 115.3MB. Free memory was 79.3MB in the beginning and 92.0MB in the end (delta: -12.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 21.99ms. Allocated memory is still 115.3MB. Free memory was 92.0MB in the beginning and 90.8MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 12.44ms. Allocated memory is still 115.3MB. Free memory was 90.8MB in the beginning and 89.8MB in the end (delta: 990.2kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 170.48ms. Allocated memory is still 115.3MB. Free memory was 89.8MB in the beginning and 81.5MB in the end (delta: 8.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * BuchiAutomizer took 423.50ms. Allocated memory is still 115.3MB. Free memory was 81.5MB in the beginning and 59.0MB in the end (delta: 22.6MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. * Witness Printer took 28.16ms. Allocated memory is still 115.3MB. Free memory was 59.0MB in the beginning and 57.4MB in the end (delta: 1.6MB). 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 0.3s and 1 iterations. TraceHistogramMax:1. Analysis of lassos took 0.3s. 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: 1]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=1} State at position 1 is {x=0, NULL=0, NULL=0, \old(cond)=1, NULL=1, \result=0, cond=1} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 14]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L12] int x=0; Loop: [L14] COND TRUE 1 [L16] CALL __VERIFIER_assert(x==0) [L6] COND FALSE !(!(cond)) [L16] RET __VERIFIER_assert(x==0) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2021-12-07 00:16:36,057 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2f0a72a-9453-4227-ad3d-9e17de4c96cd/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, 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)