./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 0f8a17c6 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d823186-6551-45e8-bb98-b0febac19a82/bin/uautomizer-ZXIjhQolGL/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d823186-6551-45e8-bb98-b0febac19a82/bin/uautomizer-ZXIjhQolGL/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d823186-6551-45e8-bb98-b0febac19a82/bin/uautomizer-ZXIjhQolGL/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d823186-6551-45e8-bb98-b0febac19a82/bin/uautomizer-ZXIjhQolGL/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/ldv-regression/stateful_check.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d823186-6551-45e8-bb98-b0febac19a82/bin/uautomizer-ZXIjhQolGL/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d823186-6551-45e8-bb98-b0febac19a82/bin/uautomizer-ZXIjhQolGL --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 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-0f8a17c [2021-11-19 05:35:17,945 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-19 05:35:17,949 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-19 05:35:17,996 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-19 05:35:17,996 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-19 05:35:17,998 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-19 05:35:18,000 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-19 05:35:18,003 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-19 05:35:18,005 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-19 05:35:18,006 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-19 05:35:18,008 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-19 05:35:18,009 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-19 05:35:18,010 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-19 05:35:18,011 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-19 05:35:18,013 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-19 05:35:18,015 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-19 05:35:18,016 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-19 05:35:18,017 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-19 05:35:18,019 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-19 05:35:18,022 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-19 05:35:18,024 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-19 05:35:18,026 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-19 05:35:18,027 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-19 05:35:18,029 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-19 05:35:18,033 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-19 05:35:18,033 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-19 05:35:18,034 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-19 05:35:18,035 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-19 05:35:18,036 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-19 05:35:18,037 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-19 05:35:18,038 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-19 05:35:18,039 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-19 05:35:18,040 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-19 05:35:18,041 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-19 05:35:18,042 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-19 05:35:18,043 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-19 05:35:18,044 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-19 05:35:18,044 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-19 05:35:18,045 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-19 05:35:18,046 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-19 05:35:18,047 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-19 05:35:18,048 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d823186-6551-45e8-bb98-b0febac19a82/bin/uautomizer-ZXIjhQolGL/config/svcomp-Termination-32bit-Automizer_Default.epf [2021-11-19 05:35:18,088 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-19 05:35:18,088 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-19 05:35:18,089 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-19 05:35:18,089 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-19 05:35:18,090 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-19 05:35:18,091 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-19 05:35:18,091 INFO L138 SettingsManager]: * Use SBE=true [2021-11-19 05:35:18,091 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-11-19 05:35:18,092 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-11-19 05:35:18,092 INFO L138 SettingsManager]: * Use old map elimination=false [2021-11-19 05:35:18,100 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-11-19 05:35:18,100 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-11-19 05:35:18,101 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-11-19 05:35:18,101 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-19 05:35:18,101 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-19 05:35:18,101 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-11-19 05:35:18,101 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-19 05:35:18,102 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-19 05:35:18,102 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-19 05:35:18,102 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-11-19 05:35:18,102 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-11-19 05:35:18,103 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-11-19 05:35:18,103 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-19 05:35:18,103 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-19 05:35:18,104 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-11-19 05:35:18,104 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-19 05:35:18,105 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-11-19 05:35:18,106 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-19 05:35:18,106 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-19 05:35:18,106 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-19 05:35:18,106 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-19 05:35:18,107 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-19 05:35:18,108 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-11-19 05:35:18,108 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_4d823186-6551-45e8-bb98-b0febac19a82/bin/uautomizer-ZXIjhQolGL/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d823186-6551-45e8-bb98-b0febac19a82/bin/uautomizer-ZXIjhQolGL Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 86e7865b5c88aae342720e4dde014f366638a0b48b0e0f6e55acb2c675bcac3e [2021-11-19 05:35:18,390 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-19 05:35:18,427 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-19 05:35:18,430 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-19 05:35:18,431 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-19 05:35:18,432 INFO L275 PluginConnector]: CDTParser initialized [2021-11-19 05:35:18,434 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d823186-6551-45e8-bb98-b0febac19a82/bin/uautomizer-ZXIjhQolGL/../../sv-benchmarks/c/ldv-regression/stateful_check.c [2021-11-19 05:35:18,503 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d823186-6551-45e8-bb98-b0febac19a82/bin/uautomizer-ZXIjhQolGL/data/f22f19d55/2270c89229c64ee286b3d8a3c3bddf7a/FLAGa051ae2fb [2021-11-19 05:35:18,934 INFO L306 CDTParser]: Found 1 translation units. [2021-11-19 05:35:18,935 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d823186-6551-45e8-bb98-b0febac19a82/sv-benchmarks/c/ldv-regression/stateful_check.c [2021-11-19 05:35:18,947 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d823186-6551-45e8-bb98-b0febac19a82/bin/uautomizer-ZXIjhQolGL/data/f22f19d55/2270c89229c64ee286b3d8a3c3bddf7a/FLAGa051ae2fb [2021-11-19 05:35:19,321 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d823186-6551-45e8-bb98-b0febac19a82/bin/uautomizer-ZXIjhQolGL/data/f22f19d55/2270c89229c64ee286b3d8a3c3bddf7a [2021-11-19 05:35:19,323 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-19 05:35:19,325 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-19 05:35:19,327 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-19 05:35:19,327 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-19 05:35:19,330 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-19 05:35:19,331 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 05:35:19" (1/1) ... [2021-11-19 05:35:19,333 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5b69313d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:35:19, skipping insertion in model container [2021-11-19 05:35:19,333 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 05:35:19" (1/1) ... [2021-11-19 05:35:19,343 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-19 05:35:19,360 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-19 05:35:19,516 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_4d823186-6551-45e8-bb98-b0febac19a82/sv-benchmarks/c/ldv-regression/stateful_check.c[298,311] [2021-11-19 05:35:19,541 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 05:35:19,549 INFO L203 MainTranslator]: Completed pre-run [2021-11-19 05:35:19,563 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_4d823186-6551-45e8-bb98-b0febac19a82/sv-benchmarks/c/ldv-regression/stateful_check.c[298,311] [2021-11-19 05:35:19,570 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 05:35:19,582 INFO L208 MainTranslator]: Completed translation [2021-11-19 05:35:19,583 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:35:19 WrapperNode [2021-11-19 05:35:19,583 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-19 05:35:19,584 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-19 05:35:19,584 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-19 05:35:19,584 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-19 05:35:19,593 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:35:19" (1/1) ... [2021-11-19 05:35:19,601 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:35:19" (1/1) ... [2021-11-19 05:35:19,624 INFO L137 Inliner]: procedures = 21, calls = 20, calls flagged for inlining = 15, calls inlined = 17, statements flattened = 116 [2021-11-19 05:35:19,625 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-19 05:35:19,626 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-19 05:35:19,626 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-19 05:35:19,626 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-19 05:35:19,635 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:35:19" (1/1) ... [2021-11-19 05:35:19,635 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:35:19" (1/1) ... [2021-11-19 05:35:19,637 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:35:19" (1/1) ... [2021-11-19 05:35:19,637 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:35:19" (1/1) ... [2021-11-19 05:35:19,642 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:35:19" (1/1) ... [2021-11-19 05:35:19,647 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:35:19" (1/1) ... [2021-11-19 05:35:19,648 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:35:19" (1/1) ... [2021-11-19 05:35:19,651 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-19 05:35:19,652 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-19 05:35:19,652 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-19 05:35:19,652 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-19 05:35:19,653 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:35:19" (1/1) ... [2021-11-19 05:35:19,662 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-19 05:35:19,674 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d823186-6551-45e8-bb98-b0febac19a82/bin/uautomizer-ZXIjhQolGL/z3 [2021-11-19 05:35:19,702 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d823186-6551-45e8-bb98-b0febac19a82/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-19 05:35:19,727 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d823186-6551-45e8-bb98-b0febac19a82/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-11-19 05:35:19,752 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-19 05:35:19,752 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-19 05:35:19,753 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-19 05:35:19,753 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-19 05:35:19,827 INFO L236 CfgBuilder]: Building ICFG [2021-11-19 05:35:19,828 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-19 05:35:20,073 INFO L277 CfgBuilder]: Performing block encoding [2021-11-19 05:35:20,079 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-19 05:35:20,080 INFO L301 CfgBuilder]: Removed 1 assume(true) statements. [2021-11-19 05:35:20,082 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 05:35:20 BoogieIcfgContainer [2021-11-19 05:35:20,082 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-19 05:35:20,083 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-11-19 05:35:20,083 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-11-19 05:35:20,087 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-11-19 05:35:20,087 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-11-19 05:35:20,088 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 19.11 05:35:19" (1/3) ... [2021-11-19 05:35:20,089 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@7b0f5833 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 19.11 05:35:20, skipping insertion in model container [2021-11-19 05:35:20,089 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-11-19 05:35:20,089 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:35:19" (2/3) ... [2021-11-19 05:35:20,090 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@7b0f5833 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 19.11 05:35:20, skipping insertion in model container [2021-11-19 05:35:20,090 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-11-19 05:35:20,090 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 05:35:20" (3/3) ... [2021-11-19 05:35:20,092 INFO L388 chiAutomizerObserver]: Analyzing ICFG stateful_check.c [2021-11-19 05:35:20,137 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-11-19 05:35:20,137 INFO L360 BuchiCegarLoop]: Hoare is false [2021-11-19 05:35:20,137 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-11-19 05:35:20,138 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-11-19 05:35:20,138 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-11-19 05:35:20,138 INFO L364 BuchiCegarLoop]: Difference is false [2021-11-19 05:35:20,138 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-11-19 05:35:20,138 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-11-19 05:35:20,155 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 49 states, 48 states have (on average 1.375) internal successors, (66), 48 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 05:35:20,177 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 38 [2021-11-19 05:35:20,178 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-19 05:35:20,178 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-19 05:35:20,186 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2021-11-19 05:35:20,186 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2021-11-19 05:35:20,187 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-11-19 05:35:20,187 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 49 states, 48 states have (on average 1.375) internal successors, (66), 48 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 05:35:20,192 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 38 [2021-11-19 05:35:20,192 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-19 05:35:20,192 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-19 05:35:20,193 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2021-11-19 05:35:20,193 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2021-11-19 05:35:20,200 INFO L791 eck$LassoCheckResult]: Stem: 42#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(17, 2);call #Ultimate.allocInit(12, 3);~ldv_mutex~0 := 1;~open_called~0 := 0; 29#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret5#1, main_#t~nondet7#1, main_#t~switch8#1, main_#t~ret9#1, main_#t~post10#1, main_#t~ret11#1, main_#t~post12#1, main_#t~ret13#1, main_#t~post14#1, main_#t~ret15#1, main_#t~nondet6#1, main_~ldv_s_misc_fops_file_operations~0#1;main_~ldv_s_misc_fops_file_operations~0#1 := 0;assume { :begin_inline_my_init } true;havoc my_init_#res#1;~open_called~0 := 0;my_init_#res#1 := 0; 50#L72true main_#t~ret5#1 := my_init_#res#1;assume { :end_inline_my_init } true;havoc main_#t~ret5#1; 36#L78-2true [2021-11-19 05:35:20,201 INFO L793 eck$LassoCheckResult]: Loop: 36#L78-2true assume !!(0 != main_#t~nondet6#1);havoc main_#t~nondet6#1;main_#t~switch8#1 := 0 == main_#t~nondet7#1; 17#L82true assume main_#t~switch8#1; 18#L83true assume !(0 == main_~ldv_s_misc_fops_file_operations~0#1); 12#L80true havoc main_#t~nondet7#1;havoc main_#t~switch8#1; 36#L78-2true [2021-11-19 05:35:20,207 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 05:35:20,207 INFO L85 PathProgramCache]: Analyzing trace with hash 29857, now seen corresponding path program 1 times [2021-11-19 05:35:20,216 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-19 05:35:20,217 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2053598655] [2021-11-19 05:35:20,217 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 05:35:20,218 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 05:35:20,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-19 05:35:20,305 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-19 05:35:20,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-19 05:35:20,335 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-19 05:35:20,338 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 05:35:20,338 INFO L85 PathProgramCache]: Analyzing trace with hash 1327184, now seen corresponding path program 1 times [2021-11-19 05:35:20,339 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-19 05:35:20,339 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [175158757] [2021-11-19 05:35:20,339 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 05:35:20,340 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 05:35:20,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-19 05:35:20,352 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-19 05:35:20,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-19 05:35:20,365 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-19 05:35:20,370 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 05:35:20,373 INFO L85 PathProgramCache]: Analyzing trace with hash 1804166384, now seen corresponding path program 1 times [2021-11-19 05:35:20,374 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-19 05:35:20,374 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [316252614] [2021-11-19 05:35:20,374 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 05:35:20,375 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 05:35:20,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:35:20,480 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 05:35:20,481 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-19 05:35:20,483 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [316252614] [2021-11-19 05:35:20,484 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [316252614] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-19 05:35:20,484 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-19 05:35:20,484 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-19 05:35:20,485 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [371019265] [2021-11-19 05:35:20,486 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-19 05:35:20,564 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-19 05:35:20,594 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-19 05:35:20,595 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-19 05:35:20,597 INFO L87 Difference]: Start difference. First operand has 49 states, 48 states have (on average 1.375) internal successors, (66), 48 states have internal predecessors, (66), 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) [2021-11-19 05:35:20,636 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 05:35:20,636 INFO L93 Difference]: Finished difference Result 62 states and 78 transitions. [2021-11-19 05:35:20,637 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-19 05:35:20,642 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 62 states and 78 transitions. [2021-11-19 05:35:20,646 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 41 [2021-11-19 05:35:20,651 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 62 states to 44 states and 60 transitions. [2021-11-19 05:35:20,652 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 44 [2021-11-19 05:35:20,653 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 44 [2021-11-19 05:35:20,653 INFO L73 IsDeterministic]: Start isDeterministic. Operand 44 states and 60 transitions. [2021-11-19 05:35:20,654 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-19 05:35:20,654 INFO L681 BuchiCegarLoop]: Abstraction has 44 states and 60 transitions. [2021-11-19 05:35:20,670 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states and 60 transitions. [2021-11-19 05:35:20,680 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 44. [2021-11-19 05:35:20,681 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44 states, 44 states have (on average 1.3636363636363635) internal successors, (60), 43 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 05:35:20,682 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 60 transitions. [2021-11-19 05:35:20,684 INFO L704 BuchiCegarLoop]: Abstraction has 44 states and 60 transitions. [2021-11-19 05:35:20,684 INFO L587 BuchiCegarLoop]: Abstraction has 44 states and 60 transitions. [2021-11-19 05:35:20,684 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-11-19 05:35:20,684 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 44 states and 60 transitions. [2021-11-19 05:35:20,686 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 41 [2021-11-19 05:35:20,686 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-19 05:35:20,686 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-19 05:35:20,687 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2021-11-19 05:35:20,687 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2021-11-19 05:35:20,687 INFO L791 eck$LassoCheckResult]: Stem: 150#ULTIMATE.startENTRY 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(17, 2);call #Ultimate.allocInit(12, 3);~ldv_mutex~0 := 1;~open_called~0 := 0; 137#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret5#1, main_#t~nondet7#1, main_#t~switch8#1, main_#t~ret9#1, main_#t~post10#1, main_#t~ret11#1, main_#t~post12#1, main_#t~ret13#1, main_#t~post14#1, main_#t~ret15#1, main_#t~nondet6#1, main_~ldv_s_misc_fops_file_operations~0#1;main_~ldv_s_misc_fops_file_operations~0#1 := 0;assume { :begin_inline_my_init } true;havoc my_init_#res#1;~open_called~0 := 0;my_init_#res#1 := 0; 138#L72 main_#t~ret5#1 := my_init_#res#1;assume { :end_inline_my_init } true;havoc main_#t~ret5#1; 142#L78-2 [2021-11-19 05:35:20,687 INFO L793 eck$LassoCheckResult]: Loop: 142#L78-2 assume !!(0 != main_#t~nondet6#1);havoc main_#t~nondet6#1;main_#t~switch8#1 := 0 == main_#t~nondet7#1; 145#L82 assume !main_#t~switch8#1;main_#t~switch8#1 := main_#t~switch8#1 || 1 == main_#t~nondet7#1; 151#L90 assume main_#t~switch8#1; 152#L91 assume !(1 == main_~ldv_s_misc_fops_file_operations~0#1); 139#L80 havoc main_#t~nondet7#1;havoc main_#t~switch8#1; 142#L78-2 [2021-11-19 05:35:20,688 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 05:35:20,688 INFO L85 PathProgramCache]: Analyzing trace with hash 29857, now seen corresponding path program 2 times [2021-11-19 05:35:20,688 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-19 05:35:20,689 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1149469074] [2021-11-19 05:35:20,689 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 05:35:20,689 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 05:35:20,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-19 05:35:20,697 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-19 05:35:20,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-19 05:35:20,706 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-19 05:35:20,707 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 05:35:20,707 INFO L85 PathProgramCache]: Analyzing trace with hash 41592526, now seen corresponding path program 1 times [2021-11-19 05:35:20,707 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-19 05:35:20,707 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [60530183] [2021-11-19 05:35:20,708 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 05:35:20,708 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 05:35:20,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-19 05:35:20,713 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-19 05:35:20,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-19 05:35:20,718 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-19 05:35:20,719 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 05:35:20,719 INFO L85 PathProgramCache]: Analyzing trace with hash 95032878, now seen corresponding path program 1 times [2021-11-19 05:35:20,719 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-19 05:35:20,720 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [862338179] [2021-11-19 05:35:20,720 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 05:35:20,720 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 05:35:20,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-19 05:35:20,728 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-19 05:35:20,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-19 05:35:20,739 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-19 05:35:21,084 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 19.11 05:35:21 BoogieIcfgContainer [2021-11-19 05:35:21,084 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-11-19 05:35:21,085 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-19 05:35:21,085 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-19 05:35:21,086 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-19 05:35:21,086 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 05:35:20" (3/4) ... [2021-11-19 05:35:21,089 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2021-11-19 05:35:21,123 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d823186-6551-45e8-bb98-b0febac19a82/bin/uautomizer-ZXIjhQolGL/witness.graphml [2021-11-19 05:35:21,123 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-19 05:35:21,124 INFO L158 Benchmark]: Toolchain (without parser) took 1799.23ms. Allocated memory is still 111.1MB. Free memory was 77.2MB in the beginning and 84.6MB in the end (delta: -7.4MB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-19 05:35:21,125 INFO L158 Benchmark]: CDTParser took 0.28ms. Allocated memory is still 83.9MB. Free memory was 56.6MB in the beginning and 56.6MB in the end (delta: 23.7kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-19 05:35:21,126 INFO L158 Benchmark]: CACSL2BoogieTranslator took 256.63ms. Allocated memory is still 111.1MB. Free memory was 77.1MB in the beginning and 88.6MB in the end (delta: -11.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-11-19 05:35:21,126 INFO L158 Benchmark]: Boogie Procedure Inliner took 41.09ms. Allocated memory is still 111.1MB. Free memory was 88.6MB in the beginning and 87.2MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-19 05:35:21,127 INFO L158 Benchmark]: Boogie Preprocessor took 25.13ms. Allocated memory is still 111.1MB. Free memory was 87.2MB in the beginning and 85.7MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-19 05:35:21,128 INFO L158 Benchmark]: RCFGBuilder took 430.35ms. Allocated memory is still 111.1MB. Free memory was 85.7MB in the beginning and 74.6MB in the end (delta: 11.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-11-19 05:35:21,128 INFO L158 Benchmark]: BuchiAutomizer took 1001.66ms. Allocated memory is still 111.1MB. Free memory was 74.6MB in the beginning and 86.6MB in the end (delta: -12.0MB). Peak memory consumption was 41.9MB. Max. memory is 16.1GB. [2021-11-19 05:35:21,129 INFO L158 Benchmark]: Witness Printer took 38.42ms. Allocated memory is still 111.1MB. Free memory was 86.6MB in the beginning and 84.6MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-19 05:35:21,133 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28ms. Allocated memory is still 83.9MB. Free memory was 56.6MB in the beginning and 56.6MB in the end (delta: 23.7kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 256.63ms. Allocated memory is still 111.1MB. Free memory was 77.1MB in the beginning and 88.6MB in the end (delta: -11.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 41.09ms. Allocated memory is still 111.1MB. Free memory was 88.6MB in the beginning and 87.2MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 25.13ms. Allocated memory is still 111.1MB. Free memory was 87.2MB in the beginning and 85.7MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 430.35ms. Allocated memory is still 111.1MB. Free memory was 85.7MB in the beginning and 74.6MB in the end (delta: 11.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * BuchiAutomizer took 1001.66ms. Allocated memory is still 111.1MB. Free memory was 74.6MB in the beginning and 86.6MB in the end (delta: -12.0MB). Peak memory consumption was 41.9MB. Max. memory is 16.1GB. * Witness Printer took 38.42ms. Allocated memory is still 111.1MB. Free memory was 86.6MB in the beginning and 84.6MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * 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 44 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 0.9s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 0.7s. 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 44 states and ocurred in iteration 1. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 23 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 23 mSDsluCounter, 89 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 39 mSDsCounter, 5 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 15 IncrementalHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 5 mSolverCounterUnsat, 50 mSDtfsCounter, 15 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown 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=1} State at position 1 is {org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@70e5d77f=4, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@11c5a7ad=1, NULL=0, NULL=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5db8a5ad=0, \result=0, ldv_mutex=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@26ceb45f=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTUnaryExpression@2c447540=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTUnaryExpression@7a460b55=0, NULL=0, ldv_s_misc_fops_file_operations=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTUnaryExpression@26f38717=0, open_called=0, \result=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@28c048e5=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@55f1d239=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@43de8a8=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; [L77] CALL my_init() [L71] open_called = 0 [L72] return 0; [L77] RET my_init() 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! [2021-11-19 05:35:21,189 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d823186-6551-45e8-bb98-b0febac19a82/bin/uautomizer-ZXIjhQolGL/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)