./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 f470102c Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_1a35cc5c-686c-4af7-8fd1-e9336c66618c/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_1a35cc5c-686c-4af7-8fd1-e9336c66618c/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_1a35cc5c-686c-4af7-8fd1-e9336c66618c/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_1a35cc5c-686c-4af7-8fd1-e9336c66618c/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-crafted-lit/HenzingerJhalaMajumdarSutre-POPL2002-LockingExample.c -s /tmp/vcloud-vcloud-master/worker/run_dir_1a35cc5c-686c-4af7-8fd1-e9336c66618c/bin/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_1a35cc5c-686c-4af7-8fd1-e9336c66618c/bin/uautomizer --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 d8654406b0017787fa4ace126fd130560d0ff458 .................................................................................................................................................................................................................................................................. 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 0.1.25-f470102 [2019-12-07 15:48:43,535 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-07 15:48:43,536 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-07 15:48:43,543 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-07 15:48:43,544 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-07 15:48:43,544 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-07 15:48:43,545 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-07 15:48:43,546 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-07 15:48:43,548 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-07 15:48:43,548 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-07 15:48:43,549 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-07 15:48:43,550 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-07 15:48:43,550 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-07 15:48:43,550 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-07 15:48:43,551 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-07 15:48:43,552 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-07 15:48:43,552 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-07 15:48:43,553 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-07 15:48:43,554 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-07 15:48:43,556 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-07 15:48:43,557 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-07 15:48:43,558 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-07 15:48:43,559 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-07 15:48:43,559 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-07 15:48:43,561 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-07 15:48:43,561 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-07 15:48:43,562 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-07 15:48:43,562 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-07 15:48:43,562 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-07 15:48:43,563 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-07 15:48:43,563 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-07 15:48:43,564 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-07 15:48:43,564 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-07 15:48:43,565 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-07 15:48:43,566 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-07 15:48:43,566 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-07 15:48:43,567 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-07 15:48:43,567 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-07 15:48:43,567 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-07 15:48:43,567 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-07 15:48:43,568 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-07 15:48:43,568 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_1a35cc5c-686c-4af7-8fd1-e9336c66618c/bin/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf [2019-12-07 15:48:43,582 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-07 15:48:43,583 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-07 15:48:43,583 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-07 15:48:43,584 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-07 15:48:43,584 INFO L138 SettingsManager]: * Use SBE=true [2019-12-07 15:48:43,584 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2019-12-07 15:48:43,584 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2019-12-07 15:48:43,584 INFO L138 SettingsManager]: * Use old map elimination=false [2019-12-07 15:48:43,585 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2019-12-07 15:48:43,585 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2019-12-07 15:48:43,585 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2019-12-07 15:48:43,585 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-07 15:48:43,585 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-12-07 15:48:43,586 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-07 15:48:43,586 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-07 15:48:43,586 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2019-12-07 15:48:43,586 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2019-12-07 15:48:43,586 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2019-12-07 15:48:43,586 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-07 15:48:43,587 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2019-12-07 15:48:43,587 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-07 15:48:43,587 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2019-12-07 15:48:43,587 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-07 15:48:43,587 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-07 15:48:43,588 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2019-12-07 15:48:43,588 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-07 15:48:43,588 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-12-07 15:48:43,588 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-07 15:48:43,588 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2019-12-07 15:48:43,589 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2019-12-07 15:48:43,589 INFO L138 SettingsManager]: * TransformationType=MODULO_NEIGHBOR 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-vcloud-master/worker/run_dir_1a35cc5c-686c-4af7-8fd1-e9336c66618c/bin/uautomizer 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 -> d8654406b0017787fa4ace126fd130560d0ff458 [2019-12-07 15:48:43,697 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-07 15:48:43,705 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-07 15:48:43,707 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-07 15:48:43,708 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-07 15:48:43,708 INFO L275 PluginConnector]: CDTParser initialized [2019-12-07 15:48:43,709 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_1a35cc5c-686c-4af7-8fd1-e9336c66618c/bin/uautomizer/../../sv-benchmarks/c/termination-crafted-lit/HenzingerJhalaMajumdarSutre-POPL2002-LockingExample.c [2019-12-07 15:48:43,746 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_1a35cc5c-686c-4af7-8fd1-e9336c66618c/bin/uautomizer/data/79eea40e7/e4faee2b3f544710bf7ca0ce5bee58e8/FLAGdf9a6be23 [2019-12-07 15:48:44,144 INFO L306 CDTParser]: Found 1 translation units. [2019-12-07 15:48:44,144 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_1a35cc5c-686c-4af7-8fd1-e9336c66618c/sv-benchmarks/c/termination-crafted-lit/HenzingerJhalaMajumdarSutre-POPL2002-LockingExample.c [2019-12-07 15:48:44,148 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_1a35cc5c-686c-4af7-8fd1-e9336c66618c/bin/uautomizer/data/79eea40e7/e4faee2b3f544710bf7ca0ce5bee58e8/FLAGdf9a6be23 [2019-12-07 15:48:44,156 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_1a35cc5c-686c-4af7-8fd1-e9336c66618c/bin/uautomizer/data/79eea40e7/e4faee2b3f544710bf7ca0ce5bee58e8 [2019-12-07 15:48:44,158 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-07 15:48:44,159 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-12-07 15:48:44,160 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-07 15:48:44,160 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-07 15:48:44,163 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-07 15:48:44,164 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 03:48:44" (1/1) ... [2019-12-07 15:48:44,166 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@34c8857b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:48:44, skipping insertion in model container [2019-12-07 15:48:44,166 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 03:48:44" (1/1) ... [2019-12-07 15:48:44,172 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-07 15:48:44,186 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 15:48:44,284 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 15:48:44,286 INFO L203 MainTranslator]: Completed pre-run [2019-12-07 15:48:44,328 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 15:48:44,341 INFO L208 MainTranslator]: Completed translation [2019-12-07 15:48:44,341 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:48:44 WrapperNode [2019-12-07 15:48:44,341 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-07 15:48:44,342 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-07 15:48:44,342 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-07 15:48:44,342 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-07 15:48:44,349 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:48:44" (1/1) ... [2019-12-07 15:48:44,352 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:48:44" (1/1) ... [2019-12-07 15:48:44,364 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-07 15:48:44,364 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-07 15:48:44,365 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-07 15:48:44,365 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-07 15:48:44,370 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:48:44" (1/1) ... [2019-12-07 15:48:44,370 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:48:44" (1/1) ... [2019-12-07 15:48:44,371 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:48:44" (1/1) ... [2019-12-07 15:48:44,371 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:48:44" (1/1) ... [2019-12-07 15:48:44,373 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:48:44" (1/1) ... [2019-12-07 15:48:44,376 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:48:44" (1/1) ... [2019-12-07 15:48:44,376 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:48:44" (1/1) ... [2019-12-07 15:48:44,377 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-07 15:48:44,378 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-07 15:48:44,378 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-07 15:48:44,378 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-07 15:48:44,378 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:48:44" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_1a35cc5c-686c-4af7-8fd1-e9336c66618c/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 15:48:44,417 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-07 15:48:44,418 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-07 15:48:44,527 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-07 15:48:44,528 INFO L287 CfgBuilder]: Removed 16 assume(true) statements. [2019-12-07 15:48:44,528 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 03:48:44 BoogieIcfgContainer [2019-12-07 15:48:44,529 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-07 15:48:44,529 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2019-12-07 15:48:44,529 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2019-12-07 15:48:44,531 INFO L275 PluginConnector]: BuchiAutomizer initialized [2019-12-07 15:48:44,532 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-12-07 15:48:44,532 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 07.12 03:48:44" (1/3) ... [2019-12-07 15:48:44,532 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@15c7bd38 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 07.12 03:48:44, skipping insertion in model container [2019-12-07 15:48:44,532 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-12-07 15:48:44,532 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:48:44" (2/3) ... [2019-12-07 15:48:44,533 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@15c7bd38 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 07.12 03:48:44, skipping insertion in model container [2019-12-07 15:48:44,533 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-12-07 15:48:44,533 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 03:48:44" (3/3) ... [2019-12-07 15:48:44,534 INFO L371 chiAutomizerObserver]: Analyzing ICFG HenzingerJhalaMajumdarSutre-POPL2002-LockingExample.c [2019-12-07 15:48:44,562 INFO L356 BuchiCegarLoop]: Interprodecural is true [2019-12-07 15:48:44,562 INFO L357 BuchiCegarLoop]: Hoare is false [2019-12-07 15:48:44,562 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2019-12-07 15:48:44,562 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-07 15:48:44,562 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-07 15:48:44,562 INFO L361 BuchiCegarLoop]: Difference is false [2019-12-07 15:48:44,562 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-07 15:48:44,562 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2019-12-07 15:48:44,571 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 21 states. [2019-12-07 15:48:44,584 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 13 [2019-12-07 15:48:44,585 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-12-07 15:48:44,585 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-12-07 15:48:44,589 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2019-12-07 15:48:44,589 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2019-12-07 15:48:44,589 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2019-12-07 15:48:44,589 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 21 states. [2019-12-07 15:48:44,590 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 13 [2019-12-07 15:48:44,590 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-12-07 15:48:44,590 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-12-07 15:48:44,591 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2019-12-07 15:48:44,591 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2019-12-07 15:48:44,595 INFO L794 eck$LassoCheckResult]: Stem: 9#ULTIMATE.startENTRYtrue ~LOCK~0 := 0; 7#L-1true havoc main_#res;havoc main_#t~nondet0, main_#t~nondet2, main_#t~post3, main_#t~nondet1, main_#t~nondet4, main_#t~post5, main_~got_lock~0, main_~old~0, main_~new~0;havoc main_~got_lock~0;main_~old~0 := 0;main_~new~0 := 0; 17#L34true assume 0 != main_#t~nondet0;havoc main_#t~nondet0; 10#L35-3true [2019-12-07 15:48:44,596 INFO L796 eck$LassoCheckResult]: Loop: 10#L35-3true main_~got_lock~0 := 0; 4#L37true assume !(0 != main_#t~nondet2);havoc main_#t~nondet2; 20#L37-2true assume !(0 != main_~got_lock~0); 18#L35-1true assume !!(0 != main_#t~nondet1);havoc main_#t~nondet1; 10#L35-3true [2019-12-07 15:48:44,599 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 15:48:44,600 INFO L82 PathProgramCache]: Analyzing trace with hash 29858, now seen corresponding path program 1 times [2019-12-07 15:48:44,605 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 15:48:44,605 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1774870099] [2019-12-07 15:48:44,606 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 15:48:44,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 15:48:44,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 15:48:44,667 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 15:48:44,668 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 15:48:44,668 INFO L82 PathProgramCache]: Analyzing trace with hash 1212883, now seen corresponding path program 1 times [2019-12-07 15:48:44,669 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 15:48:44,669 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [754644544] [2019-12-07 15:48:44,669 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 15:48:44,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 15:48:44,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 15:48:44,674 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 15:48:44,675 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 15:48:44,675 INFO L82 PathProgramCache]: Analyzing trace with hash 1804975604, now seen corresponding path program 1 times [2019-12-07 15:48:44,675 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 15:48:44,675 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1179718626] [2019-12-07 15:48:44,675 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 15:48:44,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 15:48:44,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 15:48:44,683 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 15:48:44,743 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 07.12 03:48:44 BoogieIcfgContainer [2019-12-07 15:48:44,743 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2019-12-07 15:48:44,744 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-12-07 15:48:44,744 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-12-07 15:48:44,744 INFO L275 PluginConnector]: Witness Printer initialized [2019-12-07 15:48:44,744 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 03:48:44" (3/4) ... [2019-12-07 15:48:44,746 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2019-12-07 15:48:44,773 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_1a35cc5c-686c-4af7-8fd1-e9336c66618c/bin/uautomizer/witness.graphml [2019-12-07 15:48:44,774 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-12-07 15:48:44,775 INFO L168 Benchmark]: Toolchain (without parser) took 615.48 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 98.0 MB). Free memory was 949.0 MB in the beginning and 1.1 GB in the end (delta: -104.2 MB). There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 15:48:44,776 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 964.0 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 15:48:44,776 INFO L168 Benchmark]: CACSL2BoogieTranslator took 181.50 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 98.0 MB). Free memory was 949.0 MB in the beginning and 1.1 GB in the end (delta: -146.4 MB). Peak memory consumption was 23.5 MB. Max. memory is 11.5 GB. [2019-12-07 15:48:44,777 INFO L168 Benchmark]: Boogie Procedure Inliner took 22.43 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 15:48:44,777 INFO L168 Benchmark]: Boogie Preprocessor took 13.06 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 15:48:44,777 INFO L168 Benchmark]: RCFGBuilder took 150.93 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 19.7 MB). Peak memory consumption was 19.7 MB. Max. memory is 11.5 GB. [2019-12-07 15:48:44,778 INFO L168 Benchmark]: BuchiAutomizer took 214.62 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 21.5 MB). Peak memory consumption was 21.5 MB. Max. memory is 11.5 GB. [2019-12-07 15:48:44,778 INFO L168 Benchmark]: Witness Printer took 29.95 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 1.1 MB). Peak memory consumption was 1.1 MB. Max. memory is 11.5 GB. [2019-12-07 15:48:44,781 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 964.0 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 181.50 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 98.0 MB). Free memory was 949.0 MB in the beginning and 1.1 GB in the end (delta: -146.4 MB). Peak memory consumption was 23.5 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 22.43 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 13.06 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 150.93 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 19.7 MB). Peak memory consumption was 19.7 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 214.62 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 21.5 MB). Peak memory consumption was 21.5 MB. Max. memory is 11.5 GB. * Witness Printer took 29.95 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 1.1 MB). Peak memory consumption was 1.1 MB. Max. memory is 11.5 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 0.1s 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: 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@350ca4c6=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5cd881f=0, \result=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@58e62aef=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@51ed1696=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTUnaryExpression@18bb7fd6=0, new=0, old=0, LOCK=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTUnaryExpression@2046c0e1=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! Received shutdown request...