./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 e943c265 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d8b823a-c548-4413-a7c4-bdc92f689de6/bin/uautomizer-j4sWxH34Be/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d8b823a-c548-4413-a7c4-bdc92f689de6/bin/uautomizer-j4sWxH34Be/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d8b823a-c548-4413-a7c4-bdc92f689de6/bin/uautomizer-j4sWxH34Be/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d8b823a-c548-4413-a7c4-bdc92f689de6/bin/uautomizer-j4sWxH34Be/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_9d8b823a-c548-4413-a7c4-bdc92f689de6/bin/uautomizer-j4sWxH34Be/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d8b823a-c548-4413-a7c4-bdc92f689de6/bin/uautomizer-j4sWxH34Be --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 ................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(TERM) --- Real Ultimate output --- This is Ultimate 0.2.1-dev-e943c26 [2021-10-21 20:13:45,880 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-21 20:13:45,883 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-21 20:13:45,940 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-21 20:13:45,941 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-21 20:13:45,942 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-21 20:13:45,949 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-21 20:13:45,955 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-21 20:13:45,958 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-21 20:13:45,967 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-21 20:13:45,969 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-21 20:13:45,971 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-21 20:13:45,972 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-21 20:13:45,975 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-21 20:13:45,980 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-21 20:13:45,986 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-21 20:13:45,988 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-21 20:13:45,993 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-21 20:13:45,996 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-21 20:13:45,999 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-21 20:13:46,001 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-21 20:13:46,003 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-21 20:13:46,007 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-21 20:13:46,009 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-21 20:13:46,022 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-21 20:13:46,022 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-21 20:13:46,022 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-21 20:13:46,024 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-21 20:13:46,025 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-21 20:13:46,026 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-21 20:13:46,026 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-21 20:13:46,027 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-21 20:13:46,028 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-21 20:13:46,029 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-21 20:13:46,030 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-21 20:13:46,030 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-21 20:13:46,031 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-21 20:13:46,031 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-21 20:13:46,032 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-21 20:13:46,033 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-21 20:13:46,033 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-21 20:13:46,034 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d8b823a-c548-4413-a7c4-bdc92f689de6/bin/uautomizer-j4sWxH34Be/config/svcomp-Termination-64bit-Automizer_Default.epf [2021-10-21 20:13:46,066 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-21 20:13:46,066 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-21 20:13:46,066 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-21 20:13:46,067 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-21 20:13:46,068 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-21 20:13:46,068 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-21 20:13:46,068 INFO L138 SettingsManager]: * Use SBE=true [2021-10-21 20:13:46,069 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-10-21 20:13:46,069 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-10-21 20:13:46,069 INFO L138 SettingsManager]: * Use old map elimination=false [2021-10-21 20:13:46,069 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-10-21 20:13:46,070 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-10-21 20:13:46,070 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-10-21 20:13:46,070 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-21 20:13:46,070 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-21 20:13:46,071 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-21 20:13:46,071 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-21 20:13:46,071 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-10-21 20:13:46,071 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-10-21 20:13:46,071 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-10-21 20:13:46,072 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-21 20:13:46,072 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-10-21 20:13:46,072 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-21 20:13:46,072 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-10-21 20:13:46,073 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-21 20:13:46,073 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-21 20:13:46,073 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-21 20:13:46,073 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-21 20:13:46,074 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-21 20:13:46,075 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-10-21 20:13:46,075 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_9d8b823a-c548-4413-a7c4-bdc92f689de6/bin/uautomizer-j4sWxH34Be/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d8b823a-c548-4413-a7c4-bdc92f689de6/bin/uautomizer-j4sWxH34Be Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b7e15211580ea4e53f751b22847dfea4720c9dc42574c861d991d991eb47919b [2021-10-21 20:13:46,421 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-21 20:13:46,452 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-21 20:13:46,455 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-21 20:13:46,458 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-21 20:13:46,458 INFO L275 PluginConnector]: CDTParser initialized [2021-10-21 20:13:46,460 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d8b823a-c548-4413-a7c4-bdc92f689de6/bin/uautomizer-j4sWxH34Be/../../sv-benchmarks/c/termination-crafted-lit/HenzingerJhalaMajumdarSutre-POPL2002-LockingExample.c [2021-10-21 20:13:46,552 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d8b823a-c548-4413-a7c4-bdc92f689de6/bin/uautomizer-j4sWxH34Be/data/7511bfee5/c2b9986fa8ea40d79c7a9536d9ac7ff0/FLAG9ae8d91e5 [2021-10-21 20:13:47,125 INFO L306 CDTParser]: Found 1 translation units. [2021-10-21 20:13:47,126 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d8b823a-c548-4413-a7c4-bdc92f689de6/sv-benchmarks/c/termination-crafted-lit/HenzingerJhalaMajumdarSutre-POPL2002-LockingExample.c [2021-10-21 20:13:47,142 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d8b823a-c548-4413-a7c4-bdc92f689de6/bin/uautomizer-j4sWxH34Be/data/7511bfee5/c2b9986fa8ea40d79c7a9536d9ac7ff0/FLAG9ae8d91e5 [2021-10-21 20:13:47,456 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d8b823a-c548-4413-a7c4-bdc92f689de6/bin/uautomizer-j4sWxH34Be/data/7511bfee5/c2b9986fa8ea40d79c7a9536d9ac7ff0 [2021-10-21 20:13:47,459 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-21 20:13:47,461 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-21 20:13:47,470 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-21 20:13:47,470 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-21 20:13:47,474 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-21 20:13:47,475 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.10 08:13:47" (1/1) ... [2021-10-21 20:13:47,478 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2dca6400 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:13:47, skipping insertion in model container [2021-10-21 20:13:47,479 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.10 08:13:47" (1/1) ... [2021-10-21 20:13:47,488 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-21 20:13:47,507 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-21 20:13:47,726 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-21 20:13:47,731 INFO L203 MainTranslator]: Completed pre-run [2021-10-21 20:13:47,755 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-21 20:13:47,775 INFO L208 MainTranslator]: Completed translation [2021-10-21 20:13:47,775 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:13:47 WrapperNode [2021-10-21 20:13:47,775 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-21 20:13:47,777 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-21 20:13:47,777 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-21 20:13:47,777 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-21 20:13:47,784 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:13:47" (1/1) ... [2021-10-21 20:13:47,788 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:13:47" (1/1) ... [2021-10-21 20:13:47,808 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-21 20:13:47,809 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-21 20:13:47,809 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-21 20:13:47,810 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-21 20:13:47,819 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:13:47" (1/1) ... [2021-10-21 20:13:47,819 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:13:47" (1/1) ... [2021-10-21 20:13:47,820 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:13:47" (1/1) ... [2021-10-21 20:13:47,821 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:13:47" (1/1) ... [2021-10-21 20:13:47,824 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:13:47" (1/1) ... [2021-10-21 20:13:47,829 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:13:47" (1/1) ... [2021-10-21 20:13:47,830 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:13:47" (1/1) ... [2021-10-21 20:13:47,832 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-21 20:13:47,833 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-21 20:13:47,833 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-21 20:13:47,833 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-21 20:13:47,837 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:13:47" (1/1) ... [2021-10-21 20:13:47,844 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:13:47,857 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d8b823a-c548-4413-a7c4-bdc92f689de6/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:13:47,894 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d8b823a-c548-4413-a7c4-bdc92f689de6/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:13:47,913 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d8b823a-c548-4413-a7c4-bdc92f689de6/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-10-21 20:13:47,962 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-21 20:13:47,963 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-21 20:13:48,231 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-21 20:13:48,231 INFO L299 CfgBuilder]: Removed 16 assume(true) statements. [2021-10-21 20:13:48,233 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 08:13:48 BoogieIcfgContainer [2021-10-21 20:13:48,233 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-21 20:13:48,246 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-10-21 20:13:48,246 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-10-21 20:13:48,250 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-10-21 20:13:48,251 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-21 20:13:48,251 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 21.10 08:13:47" (1/3) ... [2021-10-21 20:13:48,253 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@263688fb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 21.10 08:13:48, skipping insertion in model container [2021-10-21 20:13:48,253 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-21 20:13:48,253 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:13:47" (2/3) ... [2021-10-21 20:13:48,254 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@263688fb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 21.10 08:13:48, skipping insertion in model container [2021-10-21 20:13:48,254 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-21 20:13:48,254 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 08:13:48" (3/3) ... [2021-10-21 20:13:48,256 INFO L389 chiAutomizerObserver]: Analyzing ICFG HenzingerJhalaMajumdarSutre-POPL2002-LockingExample.c [2021-10-21 20:13:48,314 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-10-21 20:13:48,314 INFO L360 BuchiCegarLoop]: Hoare is false [2021-10-21 20:13:48,314 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-10-21 20:13:48,314 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-10-21 20:13:48,315 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-10-21 20:13:48,315 INFO L364 BuchiCegarLoop]: Difference is false [2021-10-21 20:13:48,315 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-10-21 20:13:48,315 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-10-21 20:13:48,332 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 21 states, 20 states have (on average 1.65) internal successors, (33), 20 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:13:48,354 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 13 [2021-10-21 20:13:48,354 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-21 20:13:48,355 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-21 20:13:48,361 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2021-10-21 20:13:48,362 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2021-10-21 20:13:48,362 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-10-21 20:13:48,362 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 21 states, 20 states have (on average 1.65) internal successors, (33), 20 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:13:48,366 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 13 [2021-10-21 20:13:48,366 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-21 20:13:48,366 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-21 20:13:48,367 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2021-10-21 20:13:48,367 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2021-10-21 20:13:48,374 INFO L791 eck$LassoCheckResult]: Stem: 6#ULTIMATE.startENTRYtrue ~LOCK~0 := 0; 10#L-1true havoc main_#res;havoc main_#t~nondet0, main_#t~nondet2, main_#t~post3, main_#t~nondet1, main_#t~nondet4, main_#t~post5, main_~got_lock~0, main_~old~0, main_~new~0;havoc main_~got_lock~0;main_~old~0 := 0;main_~new~0 := 0; 16#L34true assume 0 != main_#t~nondet0;havoc main_#t~nondet0; 12#L35-3true [2021-10-21 20:13:48,375 INFO L793 eck$LassoCheckResult]: Loop: 12#L35-3true main_~got_lock~0 := 0; 13#L37true assume !(0 != main_#t~nondet2);havoc main_#t~nondet2; 5#L37-2true assume !(0 != main_~got_lock~0); 15#L35-1true assume !!(0 != main_#t~nondet1);havoc main_#t~nondet1; 12#L35-3true [2021-10-21 20:13:48,381 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:13:48,381 INFO L82 PathProgramCache]: Analyzing trace with hash 29858, now seen corresponding path program 1 times [2021-10-21 20:13:48,392 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:13:48,393 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1150820286] [2021-10-21 20:13:48,393 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:13:48,394 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:13:48,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:13:48,513 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 20:13:48,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:13:48,558 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 20:13:48,562 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:13:48,563 INFO L82 PathProgramCache]: Analyzing trace with hash 1212883, now seen corresponding path program 1 times [2021-10-21 20:13:48,563 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:13:48,563 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1924357602] [2021-10-21 20:13:48,572 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:13:48,573 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:13:48,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:13:48,580 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 20:13:48,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:13:48,603 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 20:13:48,605 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:13:48,606 INFO L82 PathProgramCache]: Analyzing trace with hash 1804975604, now seen corresponding path program 1 times [2021-10-21 20:13:48,606 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:13:48,606 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1650302990] [2021-10-21 20:13:48,607 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:13:48,607 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:13:48,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:13:48,617 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 20:13:48,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:13:48,628 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 20:13:48,802 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 21.10 08:13:48 BoogieIcfgContainer [2021-10-21 20:13:48,802 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-10-21 20:13:48,809 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-21 20:13:48,809 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-21 20:13:48,809 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-21 20:13:48,810 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 08:13:48" (3/4) ... [2021-10-21 20:13:48,813 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2021-10-21 20:13:48,869 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d8b823a-c548-4413-a7c4-bdc92f689de6/bin/uautomizer-j4sWxH34Be/witness.graphml [2021-10-21 20:13:48,870 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-21 20:13:48,872 INFO L168 Benchmark]: Toolchain (without parser) took 1409.55 ms. Allocated memory is still 104.9 MB. Free memory was 65.7 MB in the beginning and 51.6 MB in the end (delta: 14.1 MB). Peak memory consumption was 12.1 MB. Max. memory is 16.1 GB. [2021-10-21 20:13:48,873 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 104.9 MB. Free memory was 81.7 MB in the beginning and 81.7 MB in the end (delta: 55.7 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-21 20:13:48,873 INFO L168 Benchmark]: CACSL2BoogieTranslator took 305.88 ms. Allocated memory is still 104.9 MB. Free memory was 65.5 MB in the beginning and 81.9 MB in the end (delta: -16.4 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-21 20:13:48,877 INFO L168 Benchmark]: Boogie Procedure Inliner took 31.83 ms. Allocated memory is still 104.9 MB. Free memory was 81.9 MB in the beginning and 80.2 MB in the end (delta: 1.6 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-21 20:13:48,878 INFO L168 Benchmark]: Boogie Preprocessor took 22.52 ms. Allocated memory is still 104.9 MB. Free memory was 80.2 MB in the beginning and 79.5 MB in the end (delta: 771.3 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-21 20:13:48,882 INFO L168 Benchmark]: RCFGBuilder took 400.63 ms. Allocated memory is still 104.9 MB. Free memory was 79.2 MB in the beginning and 70.5 MB in the end (delta: 8.7 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-21 20:13:48,883 INFO L168 Benchmark]: BuchiAutomizer took 556.50 ms. Allocated memory is still 104.9 MB. Free memory was 70.5 MB in the beginning and 53.4 MB in the end (delta: 17.1 MB). Peak memory consumption was 16.8 MB. Max. memory is 16.1 GB. [2021-10-21 20:13:48,884 INFO L168 Benchmark]: Witness Printer took 61.16 ms. Allocated memory is still 104.9 MB. Free memory was 53.4 MB in the beginning and 51.6 MB in the end (delta: 1.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-21 20:13:48,887 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 ms. Allocated memory is still 104.9 MB. Free memory was 81.7 MB in the beginning and 81.7 MB in the end (delta: 55.7 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 305.88 ms. Allocated memory is still 104.9 MB. Free memory was 65.5 MB in the beginning and 81.9 MB in the end (delta: -16.4 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 31.83 ms. Allocated memory is still 104.9 MB. Free memory was 81.9 MB in the beginning and 80.2 MB in the end (delta: 1.6 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 22.52 ms. Allocated memory is still 104.9 MB. Free memory was 80.2 MB in the beginning and 79.5 MB in the end (delta: 771.3 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 400.63 ms. Allocated memory is still 104.9 MB. Free memory was 79.2 MB in the beginning and 70.5 MB in the end (delta: 8.7 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 556.50 ms. Allocated memory is still 104.9 MB. Free memory was 70.5 MB in the beginning and 53.4 MB in the end (delta: 17.1 MB). Peak memory consumption was 16.8 MB. Max. memory is 16.1 GB. * Witness Printer took 61.16 ms. Allocated memory is still 104.9 MB. Free memory was 53.4 MB in the beginning and 51.6 MB in the end (delta: 1.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Trivial decomposition into one nonterminating module. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 0.4s and 1 iterations. TraceHistogramMax:1. Analysis of lassos took 0.4s. Construction of modules took 0.0s. Büchi inclusion checks took 0.0s. Highest rank in rank-based complementation 0. Minimization of det autom 0. Minimization of nondet autom 0. Automata minimization No data available. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had -1 states and ocurred in iteration -1. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: No data available LassoAnalysisResults: nont1 unkn0 SFLI0 SFLT0 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - FixpointNonTerminationResult [Line: 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@6d4fcc8b=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4fe42711=0, \result=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@69096a5f=2, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5b412dec=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTUnaryExpression@31908742=0, new=0, old=0, LOCK=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTUnaryExpression@24cd717=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! [2021-10-21 20:13:48,951 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d8b823a-c548-4413-a7c4-bdc92f689de6/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...