./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/ldv-regression/stateful_check.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_58a663a8-4ece-4f49-8c7f-4a1d78f727bd/bin/uautomizer-GMMbpWq8iD/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58a663a8-4ece-4f49-8c7f-4a1d78f727bd/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_58a663a8-4ece-4f49-8c7f-4a1d78f727bd/bin/uautomizer-GMMbpWq8iD/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58a663a8-4ece-4f49-8c7f-4a1d78f727bd/bin/uautomizer-GMMbpWq8iD/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/ldv-regression/stateful_check.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58a663a8-4ece-4f49-8c7f-4a1d78f727bd/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_58a663a8-4ece-4f49-8c7f-4a1d78f727bd/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 86e7865b5c88aae342720e4dde014f366638a0b48b0e0f6e55acb2c675bcac3e ................................................................................................................................................................................................................................................................................................................................................................. 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 23:41:56,764 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-28 23:41:56,766 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-28 23:41:56,809 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-28 23:41:56,810 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-28 23:41:56,811 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-28 23:41:56,814 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-28 23:41:56,817 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-28 23:41:56,820 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-28 23:41:56,822 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-28 23:41:56,823 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-28 23:41:56,825 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-28 23:41:56,829 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-28 23:41:56,834 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-28 23:41:56,837 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-28 23:41:56,839 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-28 23:41:56,840 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-28 23:41:56,842 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-28 23:41:56,845 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-28 23:41:56,849 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-28 23:41:56,862 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-28 23:41:56,871 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-28 23:41:56,874 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-28 23:41:56,879 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-28 23:41:56,888 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-28 23:41:56,892 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-28 23:41:56,892 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-28 23:41:56,894 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-28 23:41:56,895 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-28 23:41:56,896 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-28 23:41:56,896 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-28 23:41:56,898 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-28 23:41:56,899 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-28 23:41:56,900 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-28 23:41:56,902 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-28 23:41:56,902 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-28 23:41:56,903 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-28 23:41:56,903 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-28 23:41:56,904 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-28 23:41:56,905 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-28 23:41:56,906 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-28 23:41:56,912 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58a663a8-4ece-4f49-8c7f-4a1d78f727bd/bin/uautomizer-GMMbpWq8iD/config/svcomp-Termination-32bit-Automizer_Default.epf [2021-10-28 23:41:56,970 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-28 23:41:56,977 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-28 23:41:56,977 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-28 23:41:56,978 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-28 23:41:56,979 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-28 23:41:56,980 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-28 23:41:56,980 INFO L138 SettingsManager]: * Use SBE=true [2021-10-28 23:41:56,981 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-10-28 23:41:56,981 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-10-28 23:41:56,981 INFO L138 SettingsManager]: * Use old map elimination=false [2021-10-28 23:41:56,982 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-10-28 23:41:56,983 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-10-28 23:41:56,983 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-10-28 23:41:56,984 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-28 23:41:56,984 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-28 23:41:56,984 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-28 23:41:56,984 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-28 23:41:56,985 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-28 23:41:56,985 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-28 23:41:56,985 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-10-28 23:41:56,985 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-10-28 23:41:56,986 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-10-28 23:41:56,986 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-28 23:41:56,986 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-28 23:41:56,986 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-10-28 23:41:56,987 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-28 23:41:56,987 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-10-28 23:41:56,987 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-28 23:41:56,988 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-28 23:41:56,988 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-28 23:41:56,988 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-28 23:41:56,989 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-28 23:41:56,990 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-10-28 23:41:56,990 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_58a663a8-4ece-4f49-8c7f-4a1d78f727bd/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58a663a8-4ece-4f49-8c7f-4a1d78f727bd/bin/uautomizer-GMMbpWq8iD Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 86e7865b5c88aae342720e4dde014f366638a0b48b0e0f6e55acb2c675bcac3e [2021-10-28 23:41:57,380 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-28 23:41:57,408 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-28 23:41:57,411 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-28 23:41:57,413 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-28 23:41:57,414 INFO L275 PluginConnector]: CDTParser initialized [2021-10-28 23:41:57,415 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58a663a8-4ece-4f49-8c7f-4a1d78f727bd/bin/uautomizer-GMMbpWq8iD/../../sv-benchmarks/c/ldv-regression/stateful_check.c [2021-10-28 23:41:57,516 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58a663a8-4ece-4f49-8c7f-4a1d78f727bd/bin/uautomizer-GMMbpWq8iD/data/bf11d8f71/3ad859869eca485e86bfdfaa423e982a/FLAG4971d09ec [2021-10-28 23:41:58,072 INFO L306 CDTParser]: Found 1 translation units. [2021-10-28 23:41:58,073 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58a663a8-4ece-4f49-8c7f-4a1d78f727bd/sv-benchmarks/c/ldv-regression/stateful_check.c [2021-10-28 23:41:58,082 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58a663a8-4ece-4f49-8c7f-4a1d78f727bd/bin/uautomizer-GMMbpWq8iD/data/bf11d8f71/3ad859869eca485e86bfdfaa423e982a/FLAG4971d09ec [2021-10-28 23:41:58,404 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58a663a8-4ece-4f49-8c7f-4a1d78f727bd/bin/uautomizer-GMMbpWq8iD/data/bf11d8f71/3ad859869eca485e86bfdfaa423e982a [2021-10-28 23:41:58,408 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-28 23:41:58,409 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-28 23:41:58,412 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-28 23:41:58,413 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-28 23:41:58,430 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-28 23:41:58,431 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 11:41:58" (1/1) ... [2021-10-28 23:41:58,433 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@ac77645 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:41:58, skipping insertion in model container [2021-10-28 23:41:58,433 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 11:41:58" (1/1) ... [2021-10-28 23:41:58,443 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-28 23:41:58,466 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-28 23:41:58,624 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_58a663a8-4ece-4f49-8c7f-4a1d78f727bd/sv-benchmarks/c/ldv-regression/stateful_check.c[298,311] [2021-10-28 23:41:58,653 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 23:41:58,664 INFO L203 MainTranslator]: Completed pre-run [2021-10-28 23:41:58,678 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_58a663a8-4ece-4f49-8c7f-4a1d78f727bd/sv-benchmarks/c/ldv-regression/stateful_check.c[298,311] [2021-10-28 23:41:58,688 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 23:41:58,707 INFO L208 MainTranslator]: Completed translation [2021-10-28 23:41:58,707 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:41:58 WrapperNode [2021-10-28 23:41:58,708 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-28 23:41:58,709 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-28 23:41:58,710 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-28 23:41:58,710 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-28 23:41:58,720 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:41:58" (1/1) ... [2021-10-28 23:41:58,729 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:41:58" (1/1) ... [2021-10-28 23:41:58,757 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-28 23:41:58,758 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-28 23:41:58,758 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-28 23:41:58,759 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-28 23:41:58,769 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:41:58" (1/1) ... [2021-10-28 23:41:58,769 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:41:58" (1/1) ... [2021-10-28 23:41:58,771 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:41:58" (1/1) ... [2021-10-28 23:41:58,772 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:41:58" (1/1) ... [2021-10-28 23:41:58,777 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:41:58" (1/1) ... [2021-10-28 23:41:58,782 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:41:58" (1/1) ... [2021-10-28 23:41:58,784 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:41:58" (1/1) ... [2021-10-28 23:41:58,787 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-28 23:41:58,788 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-28 23:41:58,788 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-28 23:41:58,788 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-28 23:41:58,790 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:41:58" (1/1) ... [2021-10-28 23:41:58,806 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:41:58,819 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58a663a8-4ece-4f49-8c7f-4a1d78f727bd/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:41:58,834 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58a663a8-4ece-4f49-8c7f-4a1d78f727bd/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:41:58,853 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58a663a8-4ece-4f49-8c7f-4a1d78f727bd/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-10-28 23:41:58,897 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-28 23:41:58,898 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-28 23:41:58,898 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-28 23:41:58,898 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-28 23:41:59,311 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-28 23:41:59,311 INFO L299 CfgBuilder]: Removed 35 assume(true) statements. [2021-10-28 23:41:59,314 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 11:41:59 BoogieIcfgContainer [2021-10-28 23:41:59,314 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-28 23:41:59,315 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-10-28 23:41:59,315 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-10-28 23:41:59,320 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-10-28 23:41:59,321 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-28 23:41:59,321 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 28.10 11:41:58" (1/3) ... [2021-10-28 23:41:59,323 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@5624a68f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.10 11:41:59, skipping insertion in model container [2021-10-28 23:41:59,323 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-28 23:41:59,323 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:41:58" (2/3) ... [2021-10-28 23:41:59,324 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@5624a68f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.10 11:41:59, skipping insertion in model container [2021-10-28 23:41:59,324 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-28 23:41:59,324 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 11:41:59" (3/3) ... [2021-10-28 23:41:59,326 INFO L389 chiAutomizerObserver]: Analyzing ICFG stateful_check.c [2021-10-28 23:41:59,421 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-10-28 23:41:59,421 INFO L360 BuchiCegarLoop]: Hoare is false [2021-10-28 23:41:59,421 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-10-28 23:41:59,421 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-10-28 23:41:59,421 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-10-28 23:41:59,422 INFO L364 BuchiCegarLoop]: Difference is false [2021-10-28 23:41:59,422 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-10-28 23:41:59,422 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-10-28 23:41:59,443 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 40 states, 39 states have (on average 1.4615384615384615) internal successors, (57), 39 states have internal predecessors, (57), 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 23:41:59,468 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 31 [2021-10-28 23:41:59,468 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 23:41:59,469 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 23:41:59,476 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2021-10-28 23:41:59,476 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2021-10-28 23:41:59,476 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-10-28 23:41:59,477 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 40 states, 39 states have (on average 1.4615384615384615) internal successors, (57), 39 states have internal predecessors, (57), 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 23:41:59,481 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 31 [2021-10-28 23:41:59,481 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 23:41:59,481 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 23:41:59,482 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2021-10-28 23:41:59,482 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2021-10-28 23:41:59,489 INFO L791 eck$LassoCheckResult]: Stem: 23#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(17);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12);~ldv_mutex~0 := 1;~open_called~0 := 0; 12#L-1true havoc main_#res;havoc main_#t~ret8, main_#t~nondet10, main_#t~switch11, main_#t~ret12, main_#t~post13, main_#t~ret14, main_#t~post15, main_#t~ret16, main_#t~post17, main_#t~ret18, main_#t~nondet9, main_~ldv_s_misc_fops_file_operations~0;main_~ldv_s_misc_fops_file_operations~0 := 0;havoc my_init_#res;~open_called~0 := 0;my_init_#res := 0; 40#L72true main_#t~ret8 := my_init_#res;havoc main_#t~ret8; 19#L78-2true [2021-10-28 23:41:59,489 INFO L793 eck$LassoCheckResult]: Loop: 19#L78-2true assume !!(0 != main_#t~nondet9);havoc main_#t~nondet9;main_#t~switch11 := 0 == main_#t~nondet10; 28#L82true assume main_#t~switch11; 29#L83true assume !(0 == main_~ldv_s_misc_fops_file_operations~0); 16#L80true havoc main_#t~nondet10;havoc main_#t~switch11; 19#L78-2true [2021-10-28 23:41:59,496 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:41:59,497 INFO L85 PathProgramCache]: Analyzing trace with hash 29857, now seen corresponding path program 1 times [2021-10-28 23:41:59,509 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:41:59,510 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1521314332] [2021-10-28 23:41:59,510 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:41:59,512 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:41:59,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:41:59,625 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 23:41:59,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:41:59,666 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 23:41:59,670 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:41:59,670 INFO L85 PathProgramCache]: Analyzing trace with hash 1327177, now seen corresponding path program 1 times [2021-10-28 23:41:59,670 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:41:59,671 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1478085252] [2021-10-28 23:41:59,671 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:41:59,672 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:41:59,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:41:59,679 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 23:41:59,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:41:59,687 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 23:41:59,689 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:41:59,690 INFO L85 PathProgramCache]: Analyzing trace with hash 1804166377, now seen corresponding path program 1 times [2021-10-28 23:41:59,690 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:41:59,690 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1579740969] [2021-10-28 23:41:59,691 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:41:59,691 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:41:59,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:41:59,837 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:41:59,837 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:41:59,840 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1579740969] [2021-10-28 23:41:59,843 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1579740969] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 23:41:59,844 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:41:59,844 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-28 23:41:59,845 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1164846465] [2021-10-28 23:41:59,956 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:41:59,978 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-28 23:41:59,980 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 23:41:59,983 INFO L87 Difference]: Start difference. First operand has 40 states, 39 states have (on average 1.4615384615384615) internal successors, (57), 39 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 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 23:42:00,060 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:42:00,061 INFO L93 Difference]: Finished difference Result 57 states and 73 transitions. [2021-10-28 23:42:00,061 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-28 23:42:00,064 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 57 states and 73 transitions. [2021-10-28 23:42:00,068 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 38 [2021-10-28 23:42:00,074 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 57 states to 41 states and 57 transitions. [2021-10-28 23:42:00,075 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 41 [2021-10-28 23:42:00,076 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 41 [2021-10-28 23:42:00,077 INFO L73 IsDeterministic]: Start isDeterministic. Operand 41 states and 57 transitions. [2021-10-28 23:42:00,078 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-28 23:42:00,078 INFO L681 BuchiCegarLoop]: Abstraction has 41 states and 57 transitions. [2021-10-28 23:42:00,098 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states and 57 transitions. [2021-10-28 23:42:00,112 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 41. [2021-10-28 23:42:00,113 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41 states, 41 states have (on average 1.3902439024390243) internal successors, (57), 40 states have internal predecessors, (57), 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 23:42:00,125 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 57 transitions. [2021-10-28 23:42:00,127 INFO L704 BuchiCegarLoop]: Abstraction has 41 states and 57 transitions. [2021-10-28 23:42:00,129 INFO L587 BuchiCegarLoop]: Abstraction has 41 states and 57 transitions. [2021-10-28 23:42:00,129 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-10-28 23:42:00,129 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 41 states and 57 transitions. [2021-10-28 23:42:00,132 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 38 [2021-10-28 23:42:00,135 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 23:42:00,135 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 23:42:00,136 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2021-10-28 23:42:00,136 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2021-10-28 23:42:00,137 INFO L791 eck$LassoCheckResult]: Stem: 132#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(17);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12);~ldv_mutex~0 := 1;~open_called~0 := 0; 122#L-1 havoc main_#res;havoc main_#t~ret8, main_#t~nondet10, main_#t~switch11, main_#t~ret12, main_#t~post13, main_#t~ret14, main_#t~post15, main_#t~ret16, main_#t~post17, main_#t~ret18, main_#t~nondet9, main_~ldv_s_misc_fops_file_operations~0;main_~ldv_s_misc_fops_file_operations~0 := 0;havoc my_init_#res;~open_called~0 := 0;my_init_#res := 0; 123#L72 main_#t~ret8 := my_init_#res;havoc main_#t~ret8; 142#L78-2 [2021-10-28 23:42:00,137 INFO L793 eck$LassoCheckResult]: Loop: 142#L78-2 assume !!(0 != main_#t~nondet9);havoc main_#t~nondet9;main_#t~switch11 := 0 == main_#t~nondet10; 136#L82 assume !main_#t~switch11;main_#t~switch11 := main_#t~switch11 || 1 == main_#t~nondet10; 134#L90 assume main_#t~switch11; 135#L91 assume !(1 == main_~ldv_s_misc_fops_file_operations~0); 124#L80 havoc main_#t~nondet10;havoc main_#t~switch11; 142#L78-2 [2021-10-28 23:42:00,139 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:42:00,139 INFO L85 PathProgramCache]: Analyzing trace with hash 29857, now seen corresponding path program 2 times [2021-10-28 23:42:00,140 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:42:00,140 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1426062306] [2021-10-28 23:42:00,140 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:42:00,141 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:42:00,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:42:00,176 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 23:42:00,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:42:00,214 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 23:42:00,223 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:42:00,225 INFO L85 PathProgramCache]: Analyzing trace with hash 41592519, now seen corresponding path program 1 times [2021-10-28 23:42:00,226 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:42:00,227 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [440556433] [2021-10-28 23:42:00,227 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:42:00,227 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:42:00,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:42:00,238 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 23:42:00,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:42:00,245 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 23:42:00,246 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:42:00,246 INFO L85 PathProgramCache]: Analyzing trace with hash 95032871, now seen corresponding path program 1 times [2021-10-28 23:42:00,246 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:42:00,247 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [435938269] [2021-10-28 23:42:00,247 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:42:00,247 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:42:00,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:42:00,262 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 23:42:00,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:42:00,283 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 23:42:00,950 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 28.10 11:42:00 BoogieIcfgContainer [2021-10-28 23:42:00,950 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-10-28 23:42:00,951 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-28 23:42:00,951 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-28 23:42:00,951 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-28 23:42:00,952 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 11:41:59" (3/4) ... [2021-10-28 23:42:00,955 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2021-10-28 23:42:00,996 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58a663a8-4ece-4f49-8c7f-4a1d78f727bd/bin/uautomizer-GMMbpWq8iD/witness.graphml [2021-10-28 23:42:00,996 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-28 23:42:00,998 INFO L168 Benchmark]: Toolchain (without parser) took 2587.59 ms. Allocated memory is still 102.8 MB. Free memory was 66.1 MB in the beginning and 70.7 MB in the end (delta: -4.7 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 23:42:00,999 INFO L168 Benchmark]: CDTParser took 0.40 ms. Allocated memory is still 102.8 MB. Free memory is still 82.1 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 23:42:00,999 INFO L168 Benchmark]: CACSL2BoogieTranslator took 296.42 ms. Allocated memory is still 102.8 MB. Free memory was 65.8 MB in the beginning and 55.8 MB in the end (delta: 10.0 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-28 23:42:01,000 INFO L168 Benchmark]: Boogie Procedure Inliner took 48.14 ms. Allocated memory is still 102.8 MB. Free memory was 55.8 MB in the beginning and 54.2 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-28 23:42:01,001 INFO L168 Benchmark]: Boogie Preprocessor took 28.97 ms. Allocated memory is still 102.8 MB. Free memory was 54.1 MB in the beginning and 52.9 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-28 23:42:01,002 INFO L168 Benchmark]: RCFGBuilder took 526.08 ms. Allocated memory is still 102.8 MB. Free memory was 52.9 MB in the beginning and 77.9 MB in the end (delta: -25.0 MB). Peak memory consumption was 11.6 MB. Max. memory is 16.1 GB. [2021-10-28 23:42:01,002 INFO L168 Benchmark]: BuchiAutomizer took 1635.41 ms. Allocated memory is still 102.8 MB. Free memory was 77.9 MB in the beginning and 72.8 MB in the end (delta: 5.1 MB). Peak memory consumption was 50.0 MB. Max. memory is 16.1 GB. [2021-10-28 23:42:01,003 INFO L168 Benchmark]: Witness Printer took 45.27 ms. Allocated memory is still 102.8 MB. Free memory was 72.8 MB in the beginning and 70.7 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-28 23:42:01,007 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.40 ms. Allocated memory is still 102.8 MB. Free memory is still 82.1 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 296.42 ms. Allocated memory is still 102.8 MB. Free memory was 65.8 MB in the beginning and 55.8 MB in the end (delta: 10.0 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 48.14 ms. Allocated memory is still 102.8 MB. Free memory was 55.8 MB in the beginning and 54.2 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 28.97 ms. Allocated memory is still 102.8 MB. Free memory was 54.1 MB in the beginning and 52.9 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 526.08 ms. Allocated memory is still 102.8 MB. Free memory was 52.9 MB in the beginning and 77.9 MB in the end (delta: -25.0 MB). Peak memory consumption was 11.6 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 1635.41 ms. Allocated memory is still 102.8 MB. Free memory was 77.9 MB in the beginning and 72.8 MB in the end (delta: 5.1 MB). Peak memory consumption was 50.0 MB. Max. memory is 16.1 GB. * Witness Printer took 45.27 ms. Allocated memory is still 102.8 MB. Free memory was 72.8 MB in the beginning and 70.7 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 1 terminating modules (1 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.1 modules have a trivial ranking function, the largest among these consists of 3 locations. The remainder module has 41 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 1.5s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 1.2s. Construction of modules took 0.0s. Büchi inclusion checks took 0.0s. Highest rank in rank-based complementation 0. Minimization of det autom 1. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 41 states and ocurred in iteration 1. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 46 SDtfs, 22 SDslu, 35 SDs, 0 SdLazy, 15 SolverSat, 5 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont1 unkn0 SFLI0 SFLT0 conc1 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - FixpointNonTerminationResult [Line: 78]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=6389} State at position 1 is {\result=0, NULL=6390, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@43765371=0, NULL=0, \result=0, NULL=6389, ldv_mutex=1, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7e3e8c22=11, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4d198307=1, open_called=0, NULL=6391, ldv_s_misc_fops_file_operations=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@79540645=0, NULL=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2f405253=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4fe114e=0, NULL=6392, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3f73f1b5=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTUnaryExpression@4b6de845=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTUnaryExpression@a2daf1e=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTUnaryExpression@14cca4ea=0} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 78]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L11] int ldv_mutex = 1; [L13] int open_called = 0; [L76] int ldv_s_misc_fops_file_operations = 0; [L71] open_called = 0 [L72] return 0; Loop: [L78] COND TRUE __VERIFIER_nondet_int() [L82] case 0: [L90] case 1: [L91] COND FALSE !(ldv_s_misc_fops_file_operations==1) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2021-10-28 23:42:01,090 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58a663a8-4ece-4f49-8c7f-4a1d78f727bd/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...