./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-crafted-lit/HenzingerJhalaMajumdarSutre-POPL2002-LockingExample.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 839c364b Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcecf394-7ed4-4833-a057-268d76b898aa/bin/uautomizer-DrprNOufMa/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcecf394-7ed4-4833-a057-268d76b898aa/bin/uautomizer-DrprNOufMa/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcecf394-7ed4-4833-a057-268d76b898aa/bin/uautomizer-DrprNOufMa/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcecf394-7ed4-4833-a057-268d76b898aa/bin/uautomizer-DrprNOufMa/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-crafted-lit/HenzingerJhalaMajumdarSutre-POPL2002-LockingExample.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcecf394-7ed4-4833-a057-268d76b898aa/bin/uautomizer-DrprNOufMa/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcecf394-7ed4-4833-a057-268d76b898aa/bin/uautomizer-DrprNOufMa --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash b7e15211580ea4e53f751b22847dfea4720c9dc42574c861d991d991eb47919b --- Real Ultimate output --- This is Ultimate 0.2.2-hotfix-svcomp22-839c364 [2021-12-06 22:41:31,171 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-06 22:41:31,173 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-06 22:41:31,204 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-06 22:41:31,204 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-06 22:41:31,206 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-06 22:41:31,207 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-06 22:41:31,209 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-06 22:41:31,211 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-06 22:41:31,212 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-06 22:41:31,213 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-06 22:41:31,215 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-06 22:41:31,215 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-06 22:41:31,216 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-06 22:41:31,218 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-06 22:41:31,219 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-06 22:41:31,220 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-06 22:41:31,221 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-06 22:41:31,223 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-06 22:41:31,225 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-06 22:41:31,227 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-06 22:41:31,228 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-06 22:41:31,230 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-06 22:41:31,230 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-06 22:41:31,234 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-06 22:41:31,234 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-06 22:41:31,234 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-06 22:41:31,235 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-06 22:41:31,236 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-06 22:41:31,237 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-06 22:41:31,237 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-06 22:41:31,238 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-06 22:41:31,239 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-06 22:41:31,240 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-06 22:41:31,241 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-06 22:41:31,241 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-06 22:41:31,242 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-06 22:41:31,242 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-06 22:41:31,242 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-06 22:41:31,243 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-06 22:41:31,243 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-06 22:41:31,244 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcecf394-7ed4-4833-a057-268d76b898aa/bin/uautomizer-DrprNOufMa/config/svcomp-Termination-64bit-Automizer_Default.epf [2021-12-06 22:41:31,267 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-06 22:41:31,267 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-06 22:41:31,268 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-06 22:41:31,268 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-06 22:41:31,269 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-06 22:41:31,269 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-06 22:41:31,269 INFO L138 SettingsManager]: * Use SBE=true [2021-12-06 22:41:31,270 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-12-06 22:41:31,270 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-12-06 22:41:31,270 INFO L138 SettingsManager]: * Use old map elimination=false [2021-12-06 22:41:31,270 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-12-06 22:41:31,270 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-12-06 22:41:31,270 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-12-06 22:41:31,271 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-06 22:41:31,271 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-12-06 22:41:31,271 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-06 22:41:31,271 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-06 22:41:31,271 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-12-06 22:41:31,271 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-12-06 22:41:31,272 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-12-06 22:41:31,272 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-06 22:41:31,272 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-12-06 22:41:31,272 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-06 22:41:31,272 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-12-06 22:41:31,272 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-06 22:41:31,273 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-06 22:41:31,273 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-06 22:41:31,273 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-06 22:41:31,273 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-06 22:41:31,274 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-12-06 22:41:31,274 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_fcecf394-7ed4-4833-a057-268d76b898aa/bin/uautomizer-DrprNOufMa/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcecf394-7ed4-4833-a057-268d76b898aa/bin/uautomizer-DrprNOufMa Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b7e15211580ea4e53f751b22847dfea4720c9dc42574c861d991d991eb47919b [2021-12-06 22:41:31,453 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-06 22:41:31,471 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-06 22:41:31,473 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-06 22:41:31,473 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-06 22:41:31,474 INFO L275 PluginConnector]: CDTParser initialized [2021-12-06 22:41:31,475 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcecf394-7ed4-4833-a057-268d76b898aa/bin/uautomizer-DrprNOufMa/../../sv-benchmarks/c/termination-crafted-lit/HenzingerJhalaMajumdarSutre-POPL2002-LockingExample.c [2021-12-06 22:41:31,516 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcecf394-7ed4-4833-a057-268d76b898aa/bin/uautomizer-DrprNOufMa/data/f246af8ba/9ca6528fec6e42ac8ba121b3c6673c56/FLAGfae38af3e [2021-12-06 22:41:31,894 INFO L306 CDTParser]: Found 1 translation units. [2021-12-06 22:41:31,895 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcecf394-7ed4-4833-a057-268d76b898aa/sv-benchmarks/c/termination-crafted-lit/HenzingerJhalaMajumdarSutre-POPL2002-LockingExample.c [2021-12-06 22:41:31,899 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcecf394-7ed4-4833-a057-268d76b898aa/bin/uautomizer-DrprNOufMa/data/f246af8ba/9ca6528fec6e42ac8ba121b3c6673c56/FLAGfae38af3e [2021-12-06 22:41:31,912 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcecf394-7ed4-4833-a057-268d76b898aa/bin/uautomizer-DrprNOufMa/data/f246af8ba/9ca6528fec6e42ac8ba121b3c6673c56 [2021-12-06 22:41:31,914 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-06 22:41:31,915 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-06 22:41:31,917 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-06 22:41:31,917 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-06 22:41:31,920 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-06 22:41:31,921 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 10:41:31" (1/1) ... [2021-12-06 22:41:31,922 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1767f8c8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 10:41:31, skipping insertion in model container [2021-12-06 22:41:31,923 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 10:41:31" (1/1) ... [2021-12-06 22:41:31,930 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-06 22:41:31,942 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-06 22:41:32,062 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-06 22:41:32,065 INFO L203 MainTranslator]: Completed pre-run [2021-12-06 22:41:32,074 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-06 22:41:32,083 INFO L208 MainTranslator]: Completed translation [2021-12-06 22:41:32,083 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 10:41:32 WrapperNode [2021-12-06 22:41:32,084 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-06 22:41:32,084 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-06 22:41:32,084 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-06 22:41:32,085 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-06 22:41:32,090 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 10:41:32" (1/1) ... [2021-12-06 22:41:32,093 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 10:41:32" (1/1) ... [2021-12-06 22:41:32,105 INFO L137 Inliner]: procedures = 6, calls = 7, calls flagged for inlining = 7, calls inlined = 7, statements flattened = 51 [2021-12-06 22:41:32,106 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-06 22:41:32,106 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-06 22:41:32,106 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-06 22:41:32,106 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-06 22:41:32,112 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 10:41:32" (1/1) ... [2021-12-06 22:41:32,112 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 10:41:32" (1/1) ... [2021-12-06 22:41:32,113 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 10:41:32" (1/1) ... [2021-12-06 22:41:32,113 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 10:41:32" (1/1) ... [2021-12-06 22:41:32,114 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 10:41:32" (1/1) ... [2021-12-06 22:41:32,118 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 10:41:32" (1/1) ... [2021-12-06 22:41:32,118 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 10:41:32" (1/1) ... [2021-12-06 22:41:32,119 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-06 22:41:32,120 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-06 22:41:32,120 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-06 22:41:32,120 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-06 22:41:32,121 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 10:41:32" (1/1) ... [2021-12-06 22:41:32,126 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 22:41:32,134 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcecf394-7ed4-4833-a057-268d76b898aa/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 22:41:32,143 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcecf394-7ed4-4833-a057-268d76b898aa/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 22:41:32,145 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcecf394-7ed4-4833-a057-268d76b898aa/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-12-06 22:41:32,173 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-06 22:41:32,174 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-06 22:41:32,212 INFO L236 CfgBuilder]: Building ICFG [2021-12-06 22:41:32,213 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-06 22:41:32,285 INFO L277 CfgBuilder]: Performing block encoding [2021-12-06 22:41:32,290 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-06 22:41:32,290 INFO L301 CfgBuilder]: Removed 2 assume(true) statements. [2021-12-06 22:41:32,291 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 10:41:32 BoogieIcfgContainer [2021-12-06 22:41:32,292 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-06 22:41:32,292 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-12-06 22:41:32,292 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-12-06 22:41:32,295 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-12-06 22:41:32,295 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-06 22:41:32,295 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 06.12 10:41:31" (1/3) ... [2021-12-06 22:41:32,296 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@6179a892 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 06.12 10:41:32, skipping insertion in model container [2021-12-06 22:41:32,296 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-06 22:41:32,296 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 10:41:32" (2/3) ... [2021-12-06 22:41:32,296 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@6179a892 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 06.12 10:41:32, skipping insertion in model container [2021-12-06 22:41:32,297 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-06 22:41:32,297 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 10:41:32" (3/3) ... [2021-12-06 22:41:32,298 INFO L388 chiAutomizerObserver]: Analyzing ICFG HenzingerJhalaMajumdarSutre-POPL2002-LockingExample.c [2021-12-06 22:41:32,328 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-12-06 22:41:32,328 INFO L360 BuchiCegarLoop]: Hoare is false [2021-12-06 22:41:32,328 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-12-06 22:41:32,328 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-12-06 22:41:32,329 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-12-06 22:41:32,329 INFO L364 BuchiCegarLoop]: Difference is false [2021-12-06 22:41:32,329 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-12-06 22:41:32,329 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-12-06 22:41:32,339 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 24 states, 23 states have (on average 1.565217391304348) internal successors, (36), 23 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 22:41:32,353 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 15 [2021-12-06 22:41:32,353 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-06 22:41:32,353 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-06 22:41:32,357 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2021-12-06 22:41:32,358 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2021-12-06 22:41:32,358 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-12-06 22:41:32,358 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 24 states, 23 states have (on average 1.565217391304348) internal successors, (36), 23 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 22:41:32,361 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 15 [2021-12-06 22:41:32,361 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-06 22:41:32,361 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-06 22:41:32,361 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2021-12-06 22:41:32,362 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2021-12-06 22:41:32,366 INFO L791 eck$LassoCheckResult]: Stem: 6#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true;~LOCK~0 := 0; 10#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet2#1, main_#t~post3#1, main_#t~nondet1#1, main_#t~nondet4#1, main_#t~post5#1, main_~got_lock~0#1, main_~old~0#1, main_~new~0#1;havoc main_~got_lock~0#1;main_~old~0#1 := 0;main_~new~0#1 := 0; 16#L34true assume 0 != main_#t~nondet0#1;havoc main_#t~nondet0#1; 12#L35-3true [2021-12-06 22:41:32,367 INFO L793 eck$LassoCheckResult]: Loop: 12#L35-3true main_~got_lock~0#1 := 0; 13#L37true assume !(0 != main_#t~nondet2#1);havoc main_#t~nondet2#1; 5#L37-2true assume !(0 != main_~got_lock~0#1); 15#L35-1true assume !!(0 != main_#t~nondet1#1);havoc main_#t~nondet1#1; 12#L35-3true [2021-12-06 22:41:32,371 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 22:41:32,371 INFO L85 PathProgramCache]: Analyzing trace with hash 29858, now seen corresponding path program 1 times [2021-12-06 22:41:32,377 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 22:41:32,378 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2031765547] [2021-12-06 22:41:32,378 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 22:41:32,379 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 22:41:32,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 22:41:32,435 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-06 22:41:32,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 22:41:32,450 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-06 22:41:32,452 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 22:41:32,452 INFO L85 PathProgramCache]: Analyzing trace with hash 1212915, now seen corresponding path program 1 times [2021-12-06 22:41:32,453 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 22:41:32,453 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [276076487] [2021-12-06 22:41:32,453 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 22:41:32,453 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 22:41:32,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 22:41:32,457 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-06 22:41:32,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 22:41:32,461 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-06 22:41:32,462 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 22:41:32,463 INFO L85 PathProgramCache]: Analyzing trace with hash 1804975636, now seen corresponding path program 1 times [2021-12-06 22:41:32,463 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 22:41:32,463 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [88497250] [2021-12-06 22:41:32,463 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 22:41:32,463 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 22:41:32,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 22:41:32,469 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-06 22:41:32,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 22:41:32,475 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-06 22:41:32,563 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 06.12 10:41:32 BoogieIcfgContainer [2021-12-06 22:41:32,563 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-12-06 22:41:32,563 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-12-06 22:41:32,563 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-12-06 22:41:32,564 INFO L275 PluginConnector]: Witness Printer initialized [2021-12-06 22:41:32,564 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 10:41:32" (3/4) ... [2021-12-06 22:41:32,566 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2021-12-06 22:41:32,589 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcecf394-7ed4-4833-a057-268d76b898aa/bin/uautomizer-DrprNOufMa/witness.graphml [2021-12-06 22:41:32,589 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-12-06 22:41:32,590 INFO L158 Benchmark]: Toolchain (without parser) took 674.34ms. Allocated memory is still 104.9MB. Free memory was 68.8MB in the beginning and 50.9MB in the end (delta: 17.8MB). Peak memory consumption was 16.2MB. Max. memory is 16.1GB. [2021-12-06 22:41:32,591 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 104.9MB. Free memory is still 84.9MB. There was no memory consumed. Max. memory is 16.1GB. [2021-12-06 22:41:32,591 INFO L158 Benchmark]: CACSL2BoogieTranslator took 166.66ms. Allocated memory is still 104.9MB. Free memory was 68.5MB in the beginning and 81.9MB in the end (delta: -13.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-12-06 22:41:32,592 INFO L158 Benchmark]: Boogie Procedure Inliner took 21.29ms. Allocated memory is still 104.9MB. Free memory was 81.9MB in the beginning and 80.7MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-06 22:41:32,592 INFO L158 Benchmark]: Boogie Preprocessor took 13.35ms. Allocated memory is still 104.9MB. Free memory was 80.7MB in the beginning and 79.8MB in the end (delta: 934.9kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-06 22:41:32,593 INFO L158 Benchmark]: RCFGBuilder took 171.79ms. Allocated memory is still 104.9MB. Free memory was 79.3MB in the beginning and 70.6MB in the end (delta: 8.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-12-06 22:41:32,593 INFO L158 Benchmark]: BuchiAutomizer took 270.74ms. Allocated memory is still 104.9MB. Free memory was 70.6MB in the beginning and 52.6MB in the end (delta: 18.0MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2021-12-06 22:41:32,593 INFO L158 Benchmark]: Witness Printer took 25.90ms. Allocated memory is still 104.9MB. Free memory was 52.6MB in the beginning and 50.9MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-06 22:41:32,596 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12ms. Allocated memory is still 104.9MB. Free memory is still 84.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 166.66ms. Allocated memory is still 104.9MB. Free memory was 68.5MB in the beginning and 81.9MB in the end (delta: -13.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 21.29ms. Allocated memory is still 104.9MB. Free memory was 81.9MB in the beginning and 80.7MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 13.35ms. Allocated memory is still 104.9MB. Free memory was 80.7MB in the beginning and 79.8MB in the end (delta: 934.9kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 171.79ms. Allocated memory is still 104.9MB. Free memory was 79.3MB in the beginning and 70.6MB in the end (delta: 8.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * BuchiAutomizer took 270.74ms. Allocated memory is still 104.9MB. Free memory was 70.6MB in the beginning and 52.6MB in the end (delta: 18.0MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Witness Printer took 25.90ms. Allocated memory is still 104.9MB. Free memory was 52.6MB in the beginning and 50.9MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Trivial decomposition into one nonterminating module. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 0.2s and 1 iterations. TraceHistogramMax:1. Analysis of lassos took 0.1s. Construction of modules took 0.0s. Büchi inclusion checks took 0.0s. Highest rank in rank-based complementation 0. Minimization of det autom 0. Minimization of nondet autom 0. Automata minimization No data available. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had -1 states and ocurred in iteration -1. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: LassoAnalysisResults: nont1 unkn0 SFLI0 SFLT0 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - FixpointNonTerminationResult [Line: 35]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {} State at position 1 is {got_lock=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3ad9e93d=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@72a30173=2, org.eclipse.cdt.internal.core.dom.parser.c.CASTUnaryExpression@3b2fd1c5=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@36ec4e1a=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTUnaryExpression@1af97364=0, new=0, \result=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6692f667=0, old=0, LOCK=0} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 35]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L13] int LOCK; [L32] int got_lock; [L33] int old = 0, new = 0; [L34] COND TRUE __VERIFIER_nondet_int() Loop: [L36] got_lock = 0 [L37] COND FALSE !(__VERIFIER_nondet_int()) [L41] COND FALSE !(\read(got_lock)) [L44] COND TRUE __VERIFIER_nondet_int() End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2021-12-06 22:41:32,626 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcecf394-7ed4-4833-a057-268d76b898aa/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(TERM)