./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 38b53e6a Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_949e6c27-e52a-4605-acb1-d8b341514d6b/bin/uautomizer-ZsLfNo2U6R/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_949e6c27-e52a-4605-acb1-d8b341514d6b/bin/uautomizer-ZsLfNo2U6R/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_949e6c27-e52a-4605-acb1-d8b341514d6b/bin/uautomizer-ZsLfNo2U6R/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_949e6c27-e52a-4605-acb1-d8b341514d6b/bin/uautomizer-ZsLfNo2U6R/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_949e6c27-e52a-4605-acb1-d8b341514d6b/bin/uautomizer-ZsLfNo2U6R/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_949e6c27-e52a-4605-acb1-d8b341514d6b/bin/uautomizer-ZsLfNo2U6R --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 --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-38b53e6 [2022-11-25 15:46:04,295 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-25 15:46:04,297 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-25 15:46:04,326 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-25 15:46:04,327 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-25 15:46:04,331 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-25 15:46:04,334 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-25 15:46:04,337 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-25 15:46:04,340 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-25 15:46:04,345 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-25 15:46:04,347 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-25 15:46:04,349 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-25 15:46:04,349 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-25 15:46:04,353 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-25 15:46:04,355 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-25 15:46:04,357 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-25 15:46:04,359 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-25 15:46:04,359 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-25 15:46:04,361 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-25 15:46:04,367 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-25 15:46:04,369 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-25 15:46:04,371 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-25 15:46:04,373 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-25 15:46:04,374 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-25 15:46:04,384 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-25 15:46:04,385 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-25 15:46:04,385 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-25 15:46:04,388 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-25 15:46:04,389 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-25 15:46:04,390 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-25 15:46:04,392 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-25 15:46:04,393 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-25 15:46:04,394 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-25 15:46:04,395 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-25 15:46:04,396 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-25 15:46:04,397 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-25 15:46:04,397 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-25 15:46:04,397 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-25 15:46:04,398 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-25 15:46:04,399 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-25 15:46:04,400 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-25 15:46:04,401 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_949e6c27-e52a-4605-acb1-d8b341514d6b/bin/uautomizer-ZsLfNo2U6R/config/svcomp-Termination-64bit-Automizer_Default.epf [2022-11-25 15:46:04,450 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-25 15:46:04,450 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-25 15:46:04,451 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-25 15:46:04,451 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-25 15:46:04,452 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-25 15:46:04,453 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-25 15:46:04,453 INFO L138 SettingsManager]: * Use SBE=true [2022-11-25 15:46:04,453 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2022-11-25 15:46:04,453 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2022-11-25 15:46:04,453 INFO L138 SettingsManager]: * Use old map elimination=false [2022-11-25 15:46:04,454 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2022-11-25 15:46:04,455 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2022-11-25 15:46:04,455 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2022-11-25 15:46:04,455 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-25 15:46:04,455 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-25 15:46:04,456 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-25 15:46:04,456 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-25 15:46:04,456 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2022-11-25 15:46:04,456 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2022-11-25 15:46:04,456 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2022-11-25 15:46:04,457 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-25 15:46:04,457 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2022-11-25 15:46:04,457 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-25 15:46:04,457 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2022-11-25 15:46:04,457 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-25 15:46:04,458 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-25 15:46:04,458 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-25 15:46:04,458 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-25 15:46:04,460 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-11-25 15:46:04,460 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_949e6c27-e52a-4605-acb1-d8b341514d6b/bin/uautomizer-ZsLfNo2U6R/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_949e6c27-e52a-4605-acb1-d8b341514d6b/bin/uautomizer-ZsLfNo2U6R Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b7e15211580ea4e53f751b22847dfea4720c9dc42574c861d991d991eb47919b [2022-11-25 15:46:04,766 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-25 15:46:04,795 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-25 15:46:04,798 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-25 15:46:04,800 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-25 15:46:04,801 INFO L275 PluginConnector]: CDTParser initialized [2022-11-25 15:46:04,802 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_949e6c27-e52a-4605-acb1-d8b341514d6b/bin/uautomizer-ZsLfNo2U6R/../../sv-benchmarks/c/termination-crafted-lit/HenzingerJhalaMajumdarSutre-POPL2002-LockingExample.c [2022-11-25 15:46:07,993 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-25 15:46:08,165 INFO L351 CDTParser]: Found 1 translation units. [2022-11-25 15:46:08,166 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_949e6c27-e52a-4605-acb1-d8b341514d6b/sv-benchmarks/c/termination-crafted-lit/HenzingerJhalaMajumdarSutre-POPL2002-LockingExample.c [2022-11-25 15:46:08,172 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_949e6c27-e52a-4605-acb1-d8b341514d6b/bin/uautomizer-ZsLfNo2U6R/data/ab7de8f29/2dec48a6a38c4d35b5e955cf8e4a6d54/FLAG3265c4182 [2022-11-25 15:46:08,187 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_949e6c27-e52a-4605-acb1-d8b341514d6b/bin/uautomizer-ZsLfNo2U6R/data/ab7de8f29/2dec48a6a38c4d35b5e955cf8e4a6d54 [2022-11-25 15:46:08,190 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-25 15:46:08,191 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-25 15:46:08,193 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-25 15:46:08,193 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-25 15:46:08,197 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-25 15:46:08,198 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 03:46:08" (1/1) ... [2022-11-25 15:46:08,199 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7cf6e704 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:46:08, skipping insertion in model container [2022-11-25 15:46:08,199 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 03:46:08" (1/1) ... [2022-11-25 15:46:08,208 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-25 15:46:08,226 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-25 15:46:08,378 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 15:46:08,384 INFO L203 MainTranslator]: Completed pre-run [2022-11-25 15:46:08,399 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 15:46:08,412 INFO L208 MainTranslator]: Completed translation [2022-11-25 15:46:08,412 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:46:08 WrapperNode [2022-11-25 15:46:08,412 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-25 15:46:08,414 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-25 15:46:08,414 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-25 15:46:08,414 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-25 15:46:08,422 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:46:08" (1/1) ... [2022-11-25 15:46:08,427 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:46:08" (1/1) ... [2022-11-25 15:46:08,447 INFO L138 Inliner]: procedures = 6, calls = 7, calls flagged for inlining = 7, calls inlined = 7, statements flattened = 51 [2022-11-25 15:46:08,448 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-25 15:46:08,451 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-25 15:46:08,451 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-25 15:46:08,452 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-25 15:46:08,461 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:46:08" (1/1) ... [2022-11-25 15:46:08,461 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:46:08" (1/1) ... [2022-11-25 15:46:08,463 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:46:08" (1/1) ... [2022-11-25 15:46:08,463 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:46:08" (1/1) ... [2022-11-25 15:46:08,471 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:46:08" (1/1) ... [2022-11-25 15:46:08,479 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:46:08" (1/1) ... [2022-11-25 15:46:08,490 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:46:08" (1/1) ... [2022-11-25 15:46:08,491 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:46:08" (1/1) ... [2022-11-25 15:46:08,493 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-25 15:46:08,494 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-25 15:46:08,494 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-25 15:46:08,494 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-25 15:46:08,495 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:46:08" (1/1) ... [2022-11-25 15:46:08,503 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-25 15:46:08,515 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_949e6c27-e52a-4605-acb1-d8b341514d6b/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 15:46:08,532 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_949e6c27-e52a-4605-acb1-d8b341514d6b/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-25 15:46:08,563 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_949e6c27-e52a-4605-acb1-d8b341514d6b/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2022-11-25 15:46:08,581 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-25 15:46:08,581 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-25 15:46:08,644 INFO L235 CfgBuilder]: Building ICFG [2022-11-25 15:46:08,647 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-25 15:46:08,844 INFO L276 CfgBuilder]: Performing block encoding [2022-11-25 15:46:08,851 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-25 15:46:08,852 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-11-25 15:46:08,854 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 03:46:08 BoogieIcfgContainer [2022-11-25 15:46:08,874 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-25 15:46:08,875 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2022-11-25 15:46:08,875 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2022-11-25 15:46:08,879 INFO L275 PluginConnector]: BuchiAutomizer initialized [2022-11-25 15:46:08,880 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-11-25 15:46:08,880 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 25.11 03:46:08" (1/3) ... [2022-11-25 15:46:08,881 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@61c2625a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 25.11 03:46:08, skipping insertion in model container [2022-11-25 15:46:08,882 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-11-25 15:46:08,882 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:46:08" (2/3) ... [2022-11-25 15:46:08,882 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@61c2625a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 25.11 03:46:08, skipping insertion in model container [2022-11-25 15:46:08,882 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-11-25 15:46:08,882 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 03:46:08" (3/3) ... [2022-11-25 15:46:08,884 INFO L332 chiAutomizerObserver]: Analyzing ICFG HenzingerJhalaMajumdarSutre-POPL2002-LockingExample.c [2022-11-25 15:46:08,971 INFO L303 stractBuchiCegarLoop]: Interprodecural is true [2022-11-25 15:46:08,971 INFO L304 stractBuchiCegarLoop]: Hoare is false [2022-11-25 15:46:08,971 INFO L305 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2022-11-25 15:46:08,971 INFO L306 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2022-11-25 15:46:08,972 INFO L307 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2022-11-25 15:46:08,972 INFO L308 stractBuchiCegarLoop]: Difference is false [2022-11-25 15:46:08,972 INFO L309 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2022-11-25 15:46:08,973 INFO L313 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2022-11-25 15:46:08,979 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) [2022-11-25 15:46:08,995 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 15 [2022-11-25 15:46:08,995 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-25 15:46:08,996 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-25 15:46:09,002 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2022-11-25 15:46:09,002 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2022-11-25 15:46:09,002 INFO L335 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2022-11-25 15:46:09,003 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) [2022-11-25 15:46:09,004 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 15 [2022-11-25 15:46:09,005 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-25 15:46:09,005 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-25 15:46:09,005 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2022-11-25 15:46:09,006 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2022-11-25 15:46:09,014 INFO L748 eck$LassoCheckResult]: Stem: 5#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true;~LOCK~0 := 0; 9#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; 15#L34true assume 0 != main_#t~nondet0#1;havoc main_#t~nondet0#1; 11#L35-3true [2022-11-25 15:46:09,014 INFO L750 eck$LassoCheckResult]: Loop: 11#L35-3true main_~got_lock~0#1 := 0; 12#L37true assume !(0 != main_#t~nondet2#1);havoc main_#t~nondet2#1; 4#L37-2true assume !(0 != main_~got_lock~0#1); 14#L35-1true assume !!(0 != main_#t~nondet1#1);havoc main_#t~nondet1#1; 11#L35-3true [2022-11-25 15:46:09,020 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 15:46:09,021 INFO L85 PathProgramCache]: Analyzing trace with hash 29858, now seen corresponding path program 1 times [2022-11-25 15:46:09,031 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 15:46:09,032 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [990099174] [2022-11-25 15:46:09,032 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 15:46:09,033 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 15:46:09,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 15:46:09,108 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-25 15:46:09,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 15:46:09,129 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-25 15:46:09,132 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 15:46:09,133 INFO L85 PathProgramCache]: Analyzing trace with hash 1212915, now seen corresponding path program 1 times [2022-11-25 15:46:09,133 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 15:46:09,133 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [598690963] [2022-11-25 15:46:09,133 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 15:46:09,134 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 15:46:09,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 15:46:09,139 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-25 15:46:09,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 15:46:09,144 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-25 15:46:09,145 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 15:46:09,146 INFO L85 PathProgramCache]: Analyzing trace with hash 1804975636, now seen corresponding path program 1 times [2022-11-25 15:46:09,146 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 15:46:09,146 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [199601248] [2022-11-25 15:46:09,146 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 15:46:09,147 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 15:46:09,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 15:46:09,154 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-25 15:46:09,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 15:46:09,160 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-25 15:46:09,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 15:46:09,338 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-25 15:46:09,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 15:46:09,382 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 25.11 03:46:09 BoogieIcfgContainer [2022-11-25 15:46:09,382 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2022-11-25 15:46:09,382 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-25 15:46:09,383 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-25 15:46:09,383 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-25 15:46:09,383 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 03:46:08" (3/4) ... [2022-11-25 15:46:09,386 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2022-11-25 15:46:09,421 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_949e6c27-e52a-4605-acb1-d8b341514d6b/bin/uautomizer-ZsLfNo2U6R/witness.graphml [2022-11-25 15:46:09,421 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-25 15:46:09,424 INFO L158 Benchmark]: Toolchain (without parser) took 1230.86ms. Allocated memory is still 188.7MB. Free memory was 142.0MB in the beginning and 98.9MB in the end (delta: 43.1MB). Peak memory consumption was 41.9MB. Max. memory is 16.1GB. [2022-11-25 15:46:09,424 INFO L158 Benchmark]: CDTParser took 0.30ms. Allocated memory is still 142.6MB. Free memory is still 84.5MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-25 15:46:09,425 INFO L158 Benchmark]: CACSL2BoogieTranslator took 219.92ms. Allocated memory is still 188.7MB. Free memory was 141.4MB in the beginning and 132.1MB in the end (delta: 9.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-11-25 15:46:09,431 INFO L158 Benchmark]: Boogie Procedure Inliner took 35.12ms. Allocated memory is still 188.7MB. Free memory was 132.1MB in the beginning and 130.8MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-25 15:46:09,433 INFO L158 Benchmark]: Boogie Preprocessor took 41.72ms. Allocated memory is still 188.7MB. Free memory was 130.2MB in the beginning and 129.4MB in the end (delta: 836.9kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-25 15:46:09,434 INFO L158 Benchmark]: RCFGBuilder took 380.65ms. Allocated memory is still 188.7MB. Free memory was 129.4MB in the beginning and 119.8MB in the end (delta: 9.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-11-25 15:46:09,435 INFO L158 Benchmark]: BuchiAutomizer took 506.74ms. Allocated memory is still 188.7MB. Free memory was 119.8MB in the beginning and 100.6MB in the end (delta: 19.2MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2022-11-25 15:46:09,436 INFO L158 Benchmark]: Witness Printer took 38.85ms. Allocated memory is still 188.7MB. Free memory was 100.6MB in the beginning and 98.9MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-25 15:46:09,440 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30ms. Allocated memory is still 142.6MB. Free memory is still 84.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 219.92ms. Allocated memory is still 188.7MB. Free memory was 141.4MB in the beginning and 132.1MB in the end (delta: 9.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 35.12ms. Allocated memory is still 188.7MB. Free memory was 132.1MB in the beginning and 130.8MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 41.72ms. Allocated memory is still 188.7MB. Free memory was 130.2MB in the beginning and 129.4MB in the end (delta: 836.9kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 380.65ms. Allocated memory is still 188.7MB. Free memory was 129.4MB in the beginning and 119.8MB in the end (delta: 9.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * BuchiAutomizer took 506.74ms. Allocated memory is still 188.7MB. Free memory was 119.8MB in the beginning and 100.6MB in the end (delta: 19.2MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Witness Printer took 38.85ms. Allocated memory is still 188.7MB. Free memory was 100.6MB in the beginning and 98.9MB in the end (delta: 1.8MB). 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 0.4s and 1 iterations. TraceHistogramMax:1. Analysis of lassos took 0.3s. Construction of modules took 0.0s. Büchi inclusion checks took 0.0s. Highest rank in rank-based complementation 0. Minimization of det autom 0. Minimization of nondet autom 0. Automata minimization No data available. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had -1 states and ocurred in iteration -1. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: LassoAnalysisResults: nont1 unkn0 SFLI0 SFLT0 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - LassoShapedNonTerminationArgument [Line: 35]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite program execution. Stem: [L13] int LOCK; VAL [LOCK=0] [L32] int got_lock; [L33] int old = 0, new = 0; VAL [LOCK=0, new=0, old=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. - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 35]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L13] int LOCK; VAL [LOCK=0] [L32] int got_lock; [L33] int old = 0, new = 0; VAL [LOCK=0, new=0, old=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! [2022-11-25 15:46:09,477 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_949e6c27-e52a-4605-acb1-d8b341514d6b/bin/uautomizer-ZsLfNo2U6R/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)