./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 b2eff8ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4fae4f0-99db-4f52-94f9-a64abaf88c1c/bin/uautomizer-GMMbpWq8iD/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4fae4f0-99db-4f52-94f9-a64abaf88c1c/bin/uautomizer-GMMbpWq8iD/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4fae4f0-99db-4f52-94f9-a64abaf88c1c/bin/uautomizer-GMMbpWq8iD/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4fae4f0-99db-4f52-94f9-a64abaf88c1c/bin/uautomizer-GMMbpWq8iD/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/loops/while_infinite_loop_2.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4fae4f0-99db-4f52-94f9-a64abaf88c1c/bin/uautomizer-GMMbpWq8iD/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4fae4f0-99db-4f52-94f9-a64abaf88c1c/bin/uautomizer-GMMbpWq8iD --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 .................................................................................................................................................................................................................................................................................. 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 23:58:30,799 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-28 23:58:30,801 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-28 23:58:30,857 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-28 23:58:30,858 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-28 23:58:30,863 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-28 23:58:30,865 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-28 23:58:30,869 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-28 23:58:30,871 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-28 23:58:30,877 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-28 23:58:30,878 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-28 23:58:30,880 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-28 23:58:30,881 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-28 23:58:30,883 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-28 23:58:30,885 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-28 23:58:30,890 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-28 23:58:30,892 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-28 23:58:30,893 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-28 23:58:30,895 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-28 23:58:30,903 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-28 23:58:30,905 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-28 23:58:30,906 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-28 23:58:30,909 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-28 23:58:30,911 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-28 23:58:30,917 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-28 23:58:30,918 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-28 23:58:30,918 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-28 23:58:30,920 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-28 23:58:30,921 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-28 23:58:30,923 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-28 23:58:30,923 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-28 23:58:30,924 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-28 23:58:30,926 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-28 23:58:30,928 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-28 23:58:30,929 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-28 23:58:30,929 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-28 23:58:30,930 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-28 23:58:30,930 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-28 23:58:30,931 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-28 23:58:30,932 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-28 23:58:30,933 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-28 23:58:30,934 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4fae4f0-99db-4f52-94f9-a64abaf88c1c/bin/uautomizer-GMMbpWq8iD/config/svcomp-Termination-32bit-Automizer_Default.epf [2021-10-28 23:58:30,983 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-28 23:58:30,983 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-28 23:58:30,984 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-28 23:58:30,984 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-28 23:58:30,986 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-28 23:58:30,986 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-28 23:58:30,986 INFO L138 SettingsManager]: * Use SBE=true [2021-10-28 23:58:30,986 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-10-28 23:58:30,986 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-10-28 23:58:30,987 INFO L138 SettingsManager]: * Use old map elimination=false [2021-10-28 23:58:30,988 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-10-28 23:58:30,988 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-10-28 23:58:30,988 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-10-28 23:58:30,988 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-28 23:58:30,989 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-28 23:58:30,989 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-28 23:58:30,989 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-28 23:58:30,989 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-28 23:58:30,990 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-28 23:58:30,990 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-10-28 23:58:30,990 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-10-28 23:58:30,990 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-10-28 23:58:30,990 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-28 23:58:30,991 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-28 23:58:30,991 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-10-28 23:58:30,991 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-28 23:58:30,991 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-10-28 23:58:30,991 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-28 23:58:30,992 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-28 23:58:30,992 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-28 23:58:30,992 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-28 23:58:30,993 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-28 23:58:30,994 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-10-28 23:58:30,994 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_e4fae4f0-99db-4f52-94f9-a64abaf88c1c/bin/uautomizer-GMMbpWq8iD/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4fae4f0-99db-4f52-94f9-a64abaf88c1c/bin/uautomizer-GMMbpWq8iD Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2285a0532f76c71ed3da856eea9f62f11be9df4ff1d205bf57c17e8ec94f6df8 [2021-10-28 23:58:31,302 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-28 23:58:31,323 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-28 23:58:31,326 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-28 23:58:31,327 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-28 23:58:31,328 INFO L275 PluginConnector]: CDTParser initialized [2021-10-28 23:58:31,329 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4fae4f0-99db-4f52-94f9-a64abaf88c1c/bin/uautomizer-GMMbpWq8iD/../../sv-benchmarks/c/loops/while_infinite_loop_2.c [2021-10-28 23:58:31,403 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4fae4f0-99db-4f52-94f9-a64abaf88c1c/bin/uautomizer-GMMbpWq8iD/data/6cf615df7/927ce1d25a0b42c8b35bcf25f48a8d0d/FLAG4cfc5472e [2021-10-28 23:58:31,938 INFO L306 CDTParser]: Found 1 translation units. [2021-10-28 23:58:31,939 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4fae4f0-99db-4f52-94f9-a64abaf88c1c/sv-benchmarks/c/loops/while_infinite_loop_2.c [2021-10-28 23:58:31,962 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4fae4f0-99db-4f52-94f9-a64abaf88c1c/bin/uautomizer-GMMbpWq8iD/data/6cf615df7/927ce1d25a0b42c8b35bcf25f48a8d0d/FLAG4cfc5472e [2021-10-28 23:58:32,326 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4fae4f0-99db-4f52-94f9-a64abaf88c1c/bin/uautomizer-GMMbpWq8iD/data/6cf615df7/927ce1d25a0b42c8b35bcf25f48a8d0d [2021-10-28 23:58:32,329 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-28 23:58:32,331 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-28 23:58:32,335 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-28 23:58:32,335 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-28 23:58:32,338 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-28 23:58:32,339 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 11:58:32" (1/1) ... [2021-10-28 23:58:32,341 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1e363f3f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:58:32, skipping insertion in model container [2021-10-28 23:58:32,341 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 11:58:32" (1/1) ... [2021-10-28 23:58:32,349 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-28 23:58:32,362 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-28 23:58:32,585 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_e4fae4f0-99db-4f52-94f9-a64abaf88c1c/sv-benchmarks/c/loops/while_infinite_loop_2.c[333,346] [2021-10-28 23:58:32,592 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 23:58:32,606 INFO L203 MainTranslator]: Completed pre-run [2021-10-28 23:58:32,617 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_e4fae4f0-99db-4f52-94f9-a64abaf88c1c/sv-benchmarks/c/loops/while_infinite_loop_2.c[333,346] [2021-10-28 23:58:32,619 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 23:58:32,637 INFO L208 MainTranslator]: Completed translation [2021-10-28 23:58:32,637 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:58:32 WrapperNode [2021-10-28 23:58:32,637 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-28 23:58:32,638 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-28 23:58:32,638 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-28 23:58:32,639 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-28 23:58:32,652 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:58:32" (1/1) ... [2021-10-28 23:58:32,660 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:58:32" (1/1) ... [2021-10-28 23:58:32,683 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-28 23:58:32,684 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-28 23:58:32,684 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-28 23:58:32,685 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-28 23:58:32,693 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:58:32" (1/1) ... [2021-10-28 23:58:32,693 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:58:32" (1/1) ... [2021-10-28 23:58:32,695 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:58:32" (1/1) ... [2021-10-28 23:58:32,696 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:58:32" (1/1) ... [2021-10-28 23:58:32,703 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:58:32" (1/1) ... [2021-10-28 23:58:32,709 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:58:32" (1/1) ... [2021-10-28 23:58:32,717 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:58:32" (1/1) ... [2021-10-28 23:58:32,719 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-28 23:58:32,721 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-28 23:58:32,722 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-28 23:58:32,722 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-28 23:58:32,724 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:58:32" (1/1) ... [2021-10-28 23:58:32,732 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:58:32,744 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4fae4f0-99db-4f52-94f9-a64abaf88c1c/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:58:32,761 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4fae4f0-99db-4f52-94f9-a64abaf88c1c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:58:32,784 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4fae4f0-99db-4f52-94f9-a64abaf88c1c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-10-28 23:58:32,827 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-28 23:58:32,828 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-28 23:58:32,828 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-28 23:58:32,828 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-28 23:58:33,008 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-28 23:58:33,009 INFO L299 CfgBuilder]: Removed 9 assume(true) statements. [2021-10-28 23:58:33,011 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 11:58:33 BoogieIcfgContainer [2021-10-28 23:58:33,011 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-28 23:58:33,012 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-10-28 23:58:33,012 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-10-28 23:58:33,016 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-10-28 23:58:33,016 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-28 23:58:33,017 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 28.10 11:58:32" (1/3) ... [2021-10-28 23:58:33,018 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@318a0dad and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.10 11:58:33, skipping insertion in model container [2021-10-28 23:58:33,018 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-28 23:58:33,018 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:58:32" (2/3) ... [2021-10-28 23:58:33,019 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@318a0dad and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.10 11:58:33, skipping insertion in model container [2021-10-28 23:58:33,019 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-28 23:58:33,019 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 11:58:33" (3/3) ... [2021-10-28 23:58:33,020 INFO L389 chiAutomizerObserver]: Analyzing ICFG while_infinite_loop_2.c [2021-10-28 23:58:33,066 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-10-28 23:58:33,066 INFO L360 BuchiCegarLoop]: Hoare is false [2021-10-28 23:58:33,066 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-10-28 23:58:33,079 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-10-28 23:58:33,079 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-10-28 23:58:33,079 INFO L364 BuchiCegarLoop]: Difference is false [2021-10-28 23:58:33,079 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-10-28 23:58:33,079 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-10-28 23:58:33,095 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 23:58:33,114 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2021-10-28 23:58:33,114 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 23:58:33,115 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 23:58:33,121 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2021-10-28 23:58:33,121 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-10-28 23:58:33,121 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-10-28 23:58:33,122 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 23:58:33,124 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2021-10-28 23:58:33,124 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 23:58:33,124 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 23:58:33,124 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2021-10-28 23:58:33,125 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-10-28 23:58:33,132 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 23:58:33,132 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 23:58:33,138 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:58:33,152 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2021-10-28 23:58:33,161 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:58:33,162 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1038319923] [2021-10-28 23:58:33,175 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:58:33,176 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:58:33,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:58:33,308 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 23:58:33,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:58:33,371 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 23:58:33,374 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:58:33,375 INFO L85 PathProgramCache]: Analyzing trace with hash 1320, now seen corresponding path program 1 times [2021-10-28 23:58:33,376 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:58:33,378 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2075042004] [2021-10-28 23:58:33,378 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:58:33,378 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:58:33,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:58:33,406 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 23:58:33,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:58:33,419 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 23:58:33,424 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:58:33,427 INFO L85 PathProgramCache]: Analyzing trace with hash 925802, now seen corresponding path program 1 times [2021-10-28 23:58:33,428 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:58:33,428 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1149414453] [2021-10-28 23:58:33,429 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:58:33,429 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:58:33,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:58:33,460 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 23:58:33,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:58:33,481 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 23:58:34,044 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 28.10 11:58:34 BoogieIcfgContainer [2021-10-28 23:58:34,044 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-10-28 23:58:34,045 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-28 23:58:34,045 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-28 23:58:34,045 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-28 23:58:34,046 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 11:58:33" (3/4) ... [2021-10-28 23:58:34,049 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2021-10-28 23:58:34,082 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4fae4f0-99db-4f52-94f9-a64abaf88c1c/bin/uautomizer-GMMbpWq8iD/witness.graphml [2021-10-28 23:58:34,082 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-28 23:58:34,084 INFO L168 Benchmark]: Toolchain (without parser) took 1752.18 ms. Allocated memory is still 104.9 MB. Free memory was 69.4 MB in the beginning and 36.4 MB in the end (delta: 33.0 MB). Peak memory consumption was 30.6 MB. Max. memory is 16.1 GB. [2021-10-28 23:58:34,085 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 104.9 MB. Free memory was 78.6 MB in the beginning and 78.6 MB in the end (delta: 25.3 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 23:58:34,086 INFO L168 Benchmark]: CACSL2BoogieTranslator took 302.71 ms. Allocated memory is still 104.9 MB. Free memory was 69.1 MB in the beginning and 80.4 MB in the end (delta: -11.3 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-28 23:58:34,087 INFO L168 Benchmark]: Boogie Procedure Inliner took 45.21 ms. Allocated memory is still 104.9 MB. Free memory was 80.4 MB in the beginning and 78.8 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-28 23:58:34,087 INFO L168 Benchmark]: Boogie Preprocessor took 35.13 ms. Allocated memory is still 104.9 MB. Free memory was 78.8 MB in the beginning and 77.7 MB in the end (delta: 1.2 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 23:58:34,088 INFO L168 Benchmark]: RCFGBuilder took 290.09 ms. Allocated memory is still 104.9 MB. Free memory was 77.7 MB in the beginning and 69.0 MB in the end (delta: 8.7 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-28 23:58:34,089 INFO L168 Benchmark]: BuchiAutomizer took 1032.12 ms. Allocated memory is still 104.9 MB. Free memory was 69.0 MB in the beginning and 37.9 MB in the end (delta: 31.1 MB). Peak memory consumption was 31.5 MB. Max. memory is 16.1 GB. [2021-10-28 23:58:34,090 INFO L168 Benchmark]: Witness Printer took 37.75 ms. Allocated memory is still 104.9 MB. Free memory was 37.9 MB in the beginning and 36.4 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-28 23:58:34,094 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 104.9 MB. Free memory was 78.6 MB in the beginning and 78.6 MB in the end (delta: 25.3 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 302.71 ms. Allocated memory is still 104.9 MB. Free memory was 69.1 MB in the beginning and 80.4 MB in the end (delta: -11.3 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 45.21 ms. Allocated memory is still 104.9 MB. Free memory was 80.4 MB in the beginning and 78.8 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 35.13 ms. Allocated memory is still 104.9 MB. Free memory was 78.8 MB in the beginning and 77.7 MB in the end (delta: 1.2 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 290.09 ms. Allocated memory is still 104.9 MB. Free memory was 77.7 MB in the beginning and 69.0 MB in the end (delta: 8.7 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 1032.12 ms. Allocated memory is still 104.9 MB. Free memory was 69.0 MB in the beginning and 37.9 MB in the end (delta: 31.1 MB). Peak memory consumption was 31.5 MB. Max. memory is 16.1 GB. * Witness Printer took 37.75 ms. Allocated memory is still 104.9 MB. Free memory was 37.9 MB in the beginning and 36.4 MB in the end (delta: 1.5 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 0.9s. 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=12744} State at position 1 is {cond=1, NULL=0, NULL=0, NULL=0, NULL=12747, NULL=0, \result=0, NULL=12746, NULL=12744, \old(cond)=1, NULL=0, x=0, NULL=12745} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 5]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L12] int x=0; Loop: [L14] COND TRUE 1 [L6] COND FALSE !(!(cond)) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2021-10-28 23:58:34,165 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4fae4f0-99db-4f52-94f9-a64abaf88c1c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...