./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 678e0110 Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_8a004812-8486-432a-bfe7-288667f17727/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_8a004812-8486-432a-bfe7-288667f17727/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_8a004812-8486-432a-bfe7-288667f17727/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_8a004812-8486-432a-bfe7-288667f17727/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-crafted-lit/HenzingerJhalaMajumdarSutre-POPL2002-LockingExample.c -s /tmp/vcloud-vcloud-master/worker/run_dir_8a004812-8486-432a-bfe7-288667f17727/bin/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_8a004812-8486-432a-bfe7-288667f17727/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 0.1.24-678e011 [2019-11-19 22:18:15,408 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-19 22:18:15,410 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-19 22:18:15,425 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-19 22:18:15,425 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-19 22:18:15,427 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-19 22:18:15,428 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-19 22:18:15,436 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-19 22:18:15,440 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-19 22:18:15,444 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-19 22:18:15,445 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-19 22:18:15,446 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-19 22:18:15,447 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-19 22:18:15,448 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-19 22:18:15,449 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-19 22:18:15,450 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-19 22:18:15,451 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-19 22:18:15,452 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-19 22:18:15,454 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-19 22:18:15,458 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-19 22:18:15,461 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-19 22:18:15,463 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-19 22:18:15,465 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-19 22:18:15,466 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-19 22:18:15,469 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-19 22:18:15,469 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-19 22:18:15,469 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-19 22:18:15,471 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-19 22:18:15,471 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-19 22:18:15,472 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-19 22:18:15,472 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-19 22:18:15,473 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-19 22:18:15,473 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-19 22:18:15,474 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-19 22:18:15,475 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-19 22:18:15,475 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-19 22:18:15,475 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-19 22:18:15,476 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-19 22:18:15,476 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-19 22:18:15,477 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-19 22:18:15,478 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-19 22:18:15,478 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_8a004812-8486-432a-bfe7-288667f17727/bin/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf [2019-11-19 22:18:15,503 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-19 22:18:15,513 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-19 22:18:15,514 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-19 22:18:15,514 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-19 22:18:15,514 INFO L138 SettingsManager]: * Use SBE=true [2019-11-19 22:18:15,514 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2019-11-19 22:18:15,515 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2019-11-19 22:18:15,515 INFO L138 SettingsManager]: * Use old map elimination=false [2019-11-19 22:18:15,515 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2019-11-19 22:18:15,515 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2019-11-19 22:18:15,515 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2019-11-19 22:18:15,516 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-19 22:18:15,516 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-19 22:18:15,516 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-19 22:18:15,516 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-19 22:18:15,516 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2019-11-19 22:18:15,517 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2019-11-19 22:18:15,518 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2019-11-19 22:18:15,518 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-19 22:18:15,518 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2019-11-19 22:18:15,518 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-19 22:18:15,518 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2019-11-19 22:18:15,519 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-19 22:18:15,519 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-19 22:18:15,519 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2019-11-19 22:18:15,519 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-19 22:18:15,520 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-19 22:18:15,520 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2019-11-19 22:18:15,521 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2019-11-19 22:18:15,521 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_8a004812-8486-432a-bfe7-288667f17727/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 [2019-11-19 22:18:15,681 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-19 22:18:15,691 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-19 22:18:15,694 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-19 22:18:15,696 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-19 22:18:15,696 INFO L275 PluginConnector]: CDTParser initialized [2019-11-19 22:18:15,697 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_8a004812-8486-432a-bfe7-288667f17727/bin/uautomizer/../../sv-benchmarks/c/termination-crafted-lit/HenzingerJhalaMajumdarSutre-POPL2002-LockingExample.c [2019-11-19 22:18:15,762 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_8a004812-8486-432a-bfe7-288667f17727/bin/uautomizer/data/d453782f8/e2c5c6314fc842c8b9c50ac5ff00608e/FLAG67d4c9c25 [2019-11-19 22:18:16,141 INFO L306 CDTParser]: Found 1 translation units. [2019-11-19 22:18:16,142 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_8a004812-8486-432a-bfe7-288667f17727/sv-benchmarks/c/termination-crafted-lit/HenzingerJhalaMajumdarSutre-POPL2002-LockingExample.c [2019-11-19 22:18:16,146 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_8a004812-8486-432a-bfe7-288667f17727/bin/uautomizer/data/d453782f8/e2c5c6314fc842c8b9c50ac5ff00608e/FLAG67d4c9c25 [2019-11-19 22:18:16,557 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_8a004812-8486-432a-bfe7-288667f17727/bin/uautomizer/data/d453782f8/e2c5c6314fc842c8b9c50ac5ff00608e [2019-11-19 22:18:16,561 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-19 22:18:16,562 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-19 22:18:16,563 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-19 22:18:16,564 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-19 22:18:16,569 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-19 22:18:16,569 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 10:18:16" (1/1) ... [2019-11-19 22:18:16,572 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4b9e5bfa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:18:16, skipping insertion in model container [2019-11-19 22:18:16,572 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 10:18:16" (1/1) ... [2019-11-19 22:18:16,579 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-19 22:18:16,596 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-19 22:18:16,721 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-19 22:18:16,723 INFO L188 MainTranslator]: Completed pre-run [2019-11-19 22:18:16,793 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-19 22:18:16,810 INFO L192 MainTranslator]: Completed translation [2019-11-19 22:18:16,810 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:18:16 WrapperNode [2019-11-19 22:18:16,810 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-19 22:18:16,811 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-19 22:18:16,811 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-19 22:18:16,811 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-19 22:18:16,819 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:18:16" (1/1) ... [2019-11-19 22:18:16,823 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:18:16" (1/1) ... [2019-11-19 22:18:16,840 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-19 22:18:16,841 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-19 22:18:16,841 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-19 22:18:16,841 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-19 22:18:16,849 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:18:16" (1/1) ... [2019-11-19 22:18:16,850 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:18:16" (1/1) ... [2019-11-19 22:18:16,850 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:18:16" (1/1) ... [2019-11-19 22:18:16,851 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:18:16" (1/1) ... [2019-11-19 22:18:16,853 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:18:16" (1/1) ... [2019-11-19 22:18:16,858 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:18:16" (1/1) ... [2019-11-19 22:18:16,866 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:18:16" (1/1) ... [2019-11-19 22:18:16,867 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-19 22:18:16,871 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-19 22:18:16,872 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-19 22:18:16,872 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-19 22:18:16,873 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:18:16" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8a004812-8486-432a-bfe7-288667f17727/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 [2019-11-19 22:18:16,922 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-19 22:18:16,922 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-19 22:18:17,091 INFO L280 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-19 22:18:17,091 INFO L285 CfgBuilder]: Removed 16 assume(true) statements. [2019-11-19 22:18:17,092 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 10:18:17 BoogieIcfgContainer [2019-11-19 22:18:17,092 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-19 22:18:17,092 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2019-11-19 22:18:17,092 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2019-11-19 22:18:17,095 INFO L275 PluginConnector]: BuchiAutomizer initialized [2019-11-19 22:18:17,096 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-19 22:18:17,096 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 19.11 10:18:16" (1/3) ... [2019-11-19 22:18:17,097 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@76485385 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 19.11 10:18:17, skipping insertion in model container [2019-11-19 22:18:17,097 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-19 22:18:17,098 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:18:16" (2/3) ... [2019-11-19 22:18:17,098 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@76485385 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 19.11 10:18:17, skipping insertion in model container [2019-11-19 22:18:17,098 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-19 22:18:17,098 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 10:18:17" (3/3) ... [2019-11-19 22:18:17,100 INFO L371 chiAutomizerObserver]: Analyzing ICFG HenzingerJhalaMajumdarSutre-POPL2002-LockingExample.c [2019-11-19 22:18:17,162 INFO L356 BuchiCegarLoop]: Interprodecural is true [2019-11-19 22:18:17,162 INFO L357 BuchiCegarLoop]: Hoare is false [2019-11-19 22:18:17,162 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2019-11-19 22:18:17,162 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-19 22:18:17,162 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-19 22:18:17,162 INFO L361 BuchiCegarLoop]: Difference is false [2019-11-19 22:18:17,162 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-19 22:18:17,163 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2019-11-19 22:18:17,180 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 21 states. [2019-11-19 22:18:17,219 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 13 [2019-11-19 22:18:17,219 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-19 22:18:17,219 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-19 22:18:17,226 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2019-11-19 22:18:17,227 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2019-11-19 22:18:17,227 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2019-11-19 22:18:17,227 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 21 states. [2019-11-19 22:18:17,229 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 13 [2019-11-19 22:18:17,229 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-19 22:18:17,229 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-19 22:18:17,230 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2019-11-19 22:18:17,230 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2019-11-19 22:18:17,235 INFO L794 eck$LassoCheckResult]: Stem: 9#ULTIMATE.startENTRYtrue ~LOCK~0 := 0; 7#L-1true havoc main_#res;havoc main_#t~nondet0, main_#t~nondet2, main_#t~post3, main_#t~nondet1, main_#t~nondet4, main_#t~post5, main_~got_lock~0, main_~old~0, main_~new~0;havoc main_~got_lock~0;main_~old~0 := 0;main_~new~0 := 0; 17#L34true assume 0 != main_#t~nondet0;havoc main_#t~nondet0; 10#L35-3true [2019-11-19 22:18:17,236 INFO L796 eck$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 [2019-11-19 22:18:17,240 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 22:18:17,240 INFO L82 PathProgramCache]: Analyzing trace with hash 29858, now seen corresponding path program 1 times [2019-11-19 22:18:17,246 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 22:18:17,247 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1355520609] [2019-11-19 22:18:17,247 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 22:18:17,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 22:18:17,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 22:18:17,324 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-19 22:18:17,324 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 22:18:17,325 INFO L82 PathProgramCache]: Analyzing trace with hash 1212883, now seen corresponding path program 1 times [2019-11-19 22:18:17,325 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 22:18:17,325 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1678185553] [2019-11-19 22:18:17,325 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 22:18:17,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 22:18:17,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 22:18:17,332 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-19 22:18:17,333 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 22:18:17,333 INFO L82 PathProgramCache]: Analyzing trace with hash 1804975604, now seen corresponding path program 1 times [2019-11-19 22:18:17,333 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 22:18:17,334 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [679231413] [2019-11-19 22:18:17,334 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 22:18:17,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 22:18:17,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 22:18:17,344 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-19 22:18:17,449 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 19.11 10:18:17 BoogieIcfgContainer [2019-11-19 22:18:17,449 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2019-11-19 22:18:17,449 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-19 22:18:17,449 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-19 22:18:17,450 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-19 22:18:17,450 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 10:18:17" (3/4) ... [2019-11-19 22:18:17,452 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2019-11-19 22:18:17,487 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_8a004812-8486-432a-bfe7-288667f17727/bin/uautomizer/witness.graphml [2019-11-19 22:18:17,488 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-19 22:18:17,490 INFO L168 Benchmark]: Toolchain (without parser) took 926.43 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 142.1 MB). Free memory was 952.8 MB in the beginning and 1.1 GB in the end (delta: -143.9 MB). There was no memory consumed. Max. memory is 11.5 GB. [2019-11-19 22:18:17,490 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 1.0 GB. Free memory is still 967.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-19 22:18:17,491 INFO L168 Benchmark]: CACSL2BoogieTranslator took 247.12 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 142.1 MB). Free memory was 952.8 MB in the beginning and 1.1 GB in the end (delta: -182.6 MB). Peak memory consumption was 23.3 MB. Max. memory is 11.5 GB. [2019-11-19 22:18:17,491 INFO L168 Benchmark]: Boogie Procedure Inliner took 29.60 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-19 22:18:17,492 INFO L168 Benchmark]: Boogie Preprocessor took 30.34 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-19 22:18:17,492 INFO L168 Benchmark]: RCFGBuilder took 220.58 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 17.3 MB). Peak memory consumption was 17.3 MB. Max. memory is 11.5 GB. [2019-11-19 22:18:17,493 INFO L168 Benchmark]: BuchiAutomizer took 356.80 ms. Allocated memory is still 1.2 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. [2019-11-19 22:18:17,493 INFO L168 Benchmark]: Witness Printer took 38.41 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-19 22:18:17,496 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 1.0 GB. Free memory is still 967.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 247.12 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 142.1 MB). Free memory was 952.8 MB in the beginning and 1.1 GB in the end (delta: -182.6 MB). Peak memory consumption was 23.3 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 29.60 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 30.34 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 220.58 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 17.3 MB). Peak memory consumption was 17.3 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 356.80 ms. Allocated memory is still 1.2 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 38.41 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. 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 0.2s and 1 iterations. TraceHistogramMax:1. Analysis of lassos took 0.2s. 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@58d0cbb9=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1cb5d30e=0, \result=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6bfb8a66=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3e55f8d=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTUnaryExpression@52534512=0, new=0, old=0, LOCK=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTUnaryExpression@21a5d5a6=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...