./Ultimate.py --spec /storage/repos/svcomp/c/properties/unreach-call.prp --file /storage/repos/svcomp/c/ldv-regression/mutex_lock_struct_true-termination.c_false-unreach-call.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 91b1670e Calling Ultimate with: java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/svcomp/c/ldv-regression/mutex_lock_struct_true-termination.c_false-unreach-call.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 5fcaf98e9698415fefa37f25d310a7a516d84123 ..................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE --- Real Ultimate output --- This is Ultimate 0.1.24-91b1670 [2018-11-28 18:07:03,652 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-28 18:07:03,654 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-28 18:07:03,666 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-28 18:07:03,666 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-28 18:07:03,667 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-28 18:07:03,669 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-28 18:07:03,671 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-28 18:07:03,672 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-28 18:07:03,673 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-28 18:07:03,674 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-28 18:07:03,675 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-28 18:07:03,676 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-28 18:07:03,677 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-28 18:07:03,678 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-28 18:07:03,678 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-28 18:07:03,680 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-28 18:07:03,682 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-28 18:07:03,684 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-28 18:07:03,686 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-28 18:07:03,687 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-28 18:07:03,688 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-28 18:07:03,691 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-28 18:07:03,691 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-28 18:07:03,691 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-28 18:07:03,692 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-28 18:07:03,694 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-28 18:07:03,695 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-28 18:07:03,695 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-28 18:07:03,697 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-28 18:07:03,697 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-28 18:07:03,698 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-28 18:07:03,698 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-28 18:07:03,698 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-28 18:07:03,700 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-28 18:07:03,701 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-28 18:07:03,701 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2018-11-28 18:07:03,718 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-28 18:07:03,718 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-28 18:07:03,719 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-28 18:07:03,719 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-11-28 18:07:03,720 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-28 18:07:03,720 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-28 18:07:03,720 INFO L133 SettingsManager]: * Use SBE=true [2018-11-28 18:07:03,721 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-28 18:07:03,721 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-28 18:07:03,721 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-28 18:07:03,721 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-28 18:07:03,721 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-28 18:07:03,722 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-28 18:07:03,722 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-28 18:07:03,722 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-28 18:07:03,722 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-28 18:07:03,722 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-28 18:07:03,722 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-28 18:07:03,723 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-28 18:07:03,724 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-28 18:07:03,725 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-28 18:07:03,725 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-28 18:07:03,725 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-28 18:07:03,725 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-28 18:07:03,725 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-28 18:07:03,726 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-28 18:07:03,726 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-28 18:07:03,726 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-28 18:07:03,726 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-28 18:07:03,726 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-28 18:07:03,726 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true 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 -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux 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(G ! call(__VERIFIER_error())) ) 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 -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5fcaf98e9698415fefa37f25d310a7a516d84123 [2018-11-28 18:07:03,768 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-28 18:07:03,787 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-28 18:07:03,791 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-28 18:07:03,793 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-28 18:07:03,793 INFO L276 PluginConnector]: CDTParser initialized [2018-11-28 18:07:03,794 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/svcomp/c/ldv-regression/mutex_lock_struct_true-termination.c_false-unreach-call.i [2018-11-28 18:07:03,856 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c1d440d1b/810452288cde4505852cea9d6752c1ca/FLAG1f1ee9a74 [2018-11-28 18:07:04,339 INFO L307 CDTParser]: Found 1 translation units. [2018-11-28 18:07:04,340 INFO L161 CDTParser]: Scanning /storage/repos/svcomp/c/ldv-regression/mutex_lock_struct_true-termination.c_false-unreach-call.i [2018-11-28 18:07:04,350 INFO L355 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c1d440d1b/810452288cde4505852cea9d6752c1ca/FLAG1f1ee9a74 [2018-11-28 18:07:04,686 INFO L363 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c1d440d1b/810452288cde4505852cea9d6752c1ca [2018-11-28 18:07:04,689 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-28 18:07:04,691 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-28 18:07:04,692 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-28 18:07:04,692 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-28 18:07:04,696 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-28 18:07:04,697 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 06:07:04" (1/1) ... [2018-11-28 18:07:04,700 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@71aa32a3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:07:04, skipping insertion in model container [2018-11-28 18:07:04,700 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 06:07:04" (1/1) ... [2018-11-28 18:07:04,708 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-28 18:07:04,728 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-28 18:07:04,958 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 18:07:04,978 INFO L191 MainTranslator]: Completed pre-run [2018-11-28 18:07:05,000 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 18:07:05,022 INFO L195 MainTranslator]: Completed translation [2018-11-28 18:07:05,023 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:07:05 WrapperNode [2018-11-28 18:07:05,023 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-28 18:07:05,025 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-28 18:07:05,025 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-28 18:07:05,025 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-28 18:07:05,036 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:07:05" (1/1) ... [2018-11-28 18:07:05,054 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:07:05" (1/1) ... [2018-11-28 18:07:05,064 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-28 18:07:05,065 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-28 18:07:05,065 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-28 18:07:05,065 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-28 18:07:05,076 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:07:05" (1/1) ... [2018-11-28 18:07:05,077 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:07:05" (1/1) ... [2018-11-28 18:07:05,079 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:07:05" (1/1) ... [2018-11-28 18:07:05,079 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:07:05" (1/1) ... [2018-11-28 18:07:05,091 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:07:05" (1/1) ... [2018-11-28 18:07:05,094 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:07:05" (1/1) ... [2018-11-28 18:07:05,096 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:07:05" (1/1) ... [2018-11-28 18:07:05,099 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-28 18:07:05,100 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-28 18:07:05,100 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-28 18:07:05,100 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-28 18:07:05,101 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:07:05" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-28 18:07:05,282 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-11-28 18:07:05,283 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-28 18:07:05,284 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-28 18:07:05,284 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-28 18:07:05,284 INFO L130 BoogieDeclarations]: Found specification of procedure err [2018-11-28 18:07:05,284 INFO L138 BoogieDeclarations]: Found implementation of procedure err [2018-11-28 18:07:05,284 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2018-11-28 18:07:05,285 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock [2018-11-28 18:07:05,285 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-28 18:07:05,285 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-28 18:07:05,285 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-11-28 18:07:05,285 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-28 18:07:05,285 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-28 18:07:05,285 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-11-28 18:07:05,499 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-28 18:07:05,499 INFO L280 CfgBuilder]: Removed 0 assue(true) statements. [2018-11-28 18:07:05,500 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 06:07:05 BoogieIcfgContainer [2018-11-28 18:07:05,500 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-28 18:07:05,501 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-28 18:07:05,501 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-28 18:07:05,504 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-28 18:07:05,504 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 06:07:04" (1/3) ... [2018-11-28 18:07:05,505 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7d88264e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 06:07:05, skipping insertion in model container [2018-11-28 18:07:05,505 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:07:05" (2/3) ... [2018-11-28 18:07:05,506 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7d88264e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 06:07:05, skipping insertion in model container [2018-11-28 18:07:05,506 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 06:07:05" (3/3) ... [2018-11-28 18:07:05,508 INFO L112 eAbstractionObserver]: Analyzing ICFG mutex_lock_struct_true-termination.c_false-unreach-call.i [2018-11-28 18:07:05,519 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-28 18:07:05,527 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-28 18:07:05,543 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-28 18:07:05,576 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-28 18:07:05,577 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-28 18:07:05,577 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-28 18:07:05,577 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-28 18:07:05,578 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-28 18:07:05,578 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-28 18:07:05,578 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-28 18:07:05,578 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-28 18:07:05,578 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-28 18:07:05,598 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states. [2018-11-28 18:07:05,604 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2018-11-28 18:07:05,604 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 18:07:05,605 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 18:07:05,607 INFO L423 AbstractCegarLoop]: === Iteration 1 === [errErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 18:07:05,613 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 18:07:05,614 INFO L82 PathProgramCache]: Analyzing trace with hash 1740940083, now seen corresponding path program 1 times [2018-11-28 18:07:05,616 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 18:07:05,617 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 18:07:05,675 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 18:07:05,675 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 18:07:05,675 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 18:07:05,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 18:07:05,968 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 18:07:05,971 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 18:07:05,971 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-11-28 18:07:05,975 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-28 18:07:05,989 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-28 18:07:05,990 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-11-28 18:07:05,993 INFO L87 Difference]: Start difference. First operand 23 states. Second operand 5 states. [2018-11-28 18:07:06,127 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 18:07:06,127 INFO L93 Difference]: Finished difference Result 40 states and 45 transitions. [2018-11-28 18:07:06,128 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-11-28 18:07:06,129 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 11 [2018-11-28 18:07:06,130 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 18:07:06,138 INFO L225 Difference]: With dead ends: 40 [2018-11-28 18:07:06,138 INFO L226 Difference]: Without dead ends: 18 [2018-11-28 18:07:06,141 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-11-28 18:07:06,156 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2018-11-28 18:07:06,177 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2018-11-28 18:07:06,179 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2018-11-28 18:07:06,179 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 17 transitions. [2018-11-28 18:07:06,181 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 17 transitions. Word has length 11 [2018-11-28 18:07:06,182 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 18:07:06,182 INFO L480 AbstractCegarLoop]: Abstraction has 18 states and 17 transitions. [2018-11-28 18:07:06,182 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-28 18:07:06,182 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 17 transitions. [2018-11-28 18:07:06,183 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2018-11-28 18:07:06,183 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 18:07:06,183 INFO L402 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 18:07:06,184 INFO L423 AbstractCegarLoop]: === Iteration 2 === [errErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 18:07:06,184 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 18:07:06,184 INFO L82 PathProgramCache]: Analyzing trace with hash 68232763, now seen corresponding path program 1 times [2018-11-28 18:07:06,184 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 18:07:06,185 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 18:07:06,186 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 18:07:06,186 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 18:07:06,186 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 18:07:06,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 18:07:06,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 18:07:06,274 INFO L469 BasicCegarLoop]: Counterexample might be feasible [2018-11-28 18:07:06,308 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 06:07:06 BoogieIcfgContainer [2018-11-28 18:07:06,308 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-28 18:07:06,308 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-28 18:07:06,309 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-28 18:07:06,309 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-28 18:07:06,309 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 06:07:05" (3/4) ... [2018-11-28 18:07:06,312 INFO L138 WitnessPrinter]: Generating witness for reachability counterexample [2018-11-28 18:07:06,359 INFO L145 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2018-11-28 18:07:06,359 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-28 18:07:06,360 INFO L168 Benchmark]: Toolchain (without parser) took 1669.89 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 162.5 MB). Free memory was 951.3 MB in the beginning and 1.1 GB in the end (delta: -153.2 MB). Peak memory consumption was 9.3 MB. Max. memory is 11.5 GB. [2018-11-28 18:07:06,362 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 978.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 18:07:06,362 INFO L168 Benchmark]: CACSL2BoogieTranslator took 332.16 ms. Allocated memory is still 1.0 GB. Free memory was 951.3 MB in the beginning and 940.6 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-11-28 18:07:06,363 INFO L168 Benchmark]: Boogie Procedure Inliner took 39.80 ms. Allocated memory is still 1.0 GB. Free memory is still 940.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 18:07:06,364 INFO L168 Benchmark]: Boogie Preprocessor took 34.52 ms. Allocated memory is still 1.0 GB. Free memory is still 940.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 18:07:06,364 INFO L168 Benchmark]: RCFGBuilder took 400.26 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 162.5 MB). Free memory was 940.6 MB in the beginning and 1.1 GB in the end (delta: -191.2 MB). Peak memory consumption was 18.5 MB. Max. memory is 11.5 GB. [2018-11-28 18:07:06,365 INFO L168 Benchmark]: TraceAbstraction took 807.26 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: 27.3 MB). Peak memory consumption was 27.3 MB. Max. memory is 11.5 GB. [2018-11-28 18:07:06,366 INFO L168 Benchmark]: Witness Printer took 50.45 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. [2018-11-28 18:07:06,370 INFO L336 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 978.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 332.16 ms. Allocated memory is still 1.0 GB. Free memory was 951.3 MB in the beginning and 940.6 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 39.80 ms. Allocated memory is still 1.0 GB. Free memory is still 940.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 34.52 ms. Allocated memory is still 1.0 GB. Free memory is still 940.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 400.26 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 162.5 MB). Free memory was 940.6 MB in the beginning and 1.1 GB in the end (delta: -191.2 MB). Peak memory consumption was 18.5 MB. Max. memory is 11.5 GB. * TraceAbstraction took 807.26 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: 27.3 MB). Peak memory consumption was 27.3 MB. Max. memory is 11.5 GB. * Witness Printer took 50.45 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: - CounterExampleResult [Line: 13]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L33] struct mutex m; [L34] m.is_locked = 0 VAL [m={6:0}] [L36] CALL mutex_lock(&m) VAL [a={6:0}] [L21] EXPR a->is_locked VAL [a={6:0}, a={6:0}, a->is_locked=0] [L21] COND FALSE !(a->is_locked == 1) [L22] a->is_locked = 1 VAL [a={6:0}, a={6:0}] [L36] RET mutex_lock(&m) VAL [m={6:0}] [L40] CALL mutex_lock(&m) VAL [a={6:0}] [L21] EXPR a->is_locked VAL [a={6:0}, a={6:0}, a->is_locked=1] [L21] COND TRUE a->is_locked == 1 [L21] CALL err() [L13] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 23 locations, 1 error locations. UNSAFE Result, 0.7s OverallTime, 2 OverallIterations, 2 TraceHistogramMax, 0.1s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 18 SDtfs, 1 SDslu, 47 SDs, 0 SdLazy, 17 SolverSat, 1 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=23occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 28 NumberOfCodeBlocks, 28 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 10 ConstructedInterpolants, 0 QuantifiedInterpolants, 240 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...