./Ultimate.py --spec ../../sv-benchmarks/c/ReachSafety.prp --file ../../sv-benchmarks/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 1dbac8bc Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_4f7d393f-b667-4c3e-8364-2e826c620d7e/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_4f7d393f-b667-4c3e-8364-2e826c620d7e/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_4f7d393f-b667-4c3e-8364-2e826c620d7e/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_4f7d393f-b667-4c3e-8364-2e826c620d7e/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-regression/mutex_lock_struct_true-termination.c_false-unreach-call.i -s /tmp/vcloud-vcloud-master/worker/working_dir_4f7d393f-b667-4c3e-8364-2e826c620d7e/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_4f7d393f-b667-4c3e-8364-2e826c620d7e/bin-2019/utaipan --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 Taipan --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 0.1.23-1dbac8b [2018-11-10 01:49:25,238 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-10 01:49:25,239 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-10 01:49:25,247 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-10 01:49:25,247 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-10 01:49:25,248 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-10 01:49:25,249 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-10 01:49:25,250 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-10 01:49:25,251 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-10 01:49:25,252 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-10 01:49:25,252 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-10 01:49:25,252 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-10 01:49:25,253 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-10 01:49:25,254 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-10 01:49:25,255 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-10 01:49:25,255 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-10 01:49:25,256 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-10 01:49:25,257 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-10 01:49:25,258 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-10 01:49:25,259 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-10 01:49:25,260 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-10 01:49:25,261 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-10 01:49:25,262 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-10 01:49:25,262 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-10 01:49:25,263 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-10 01:49:25,263 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-10 01:49:25,264 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-10 01:49:25,265 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-10 01:49:25,265 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-10 01:49:25,266 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-10 01:49:25,266 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-10 01:49:25,267 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-10 01:49:25,267 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-10 01:49:25,267 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-10 01:49:25,267 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-10 01:49:25,268 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-10 01:49:25,268 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_4f7d393f-b667-4c3e-8364-2e826c620d7e/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2018-11-10 01:49:25,278 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-10 01:49:25,279 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-10 01:49:25,279 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-10 01:49:25,279 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-10 01:49:25,280 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-11-10 01:49:25,280 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-10 01:49:25,280 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-11-10 01:49:25,280 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-10 01:49:25,280 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-11-10 01:49:25,280 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-11-10 01:49:25,280 INFO L133 SettingsManager]: * Interval Domain=false [2018-11-10 01:49:25,281 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-10 01:49:25,281 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-10 01:49:25,281 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-10 01:49:25,281 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-10 01:49:25,281 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-10 01:49:25,281 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-10 01:49:25,282 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-10 01:49:25,282 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-10 01:49:25,282 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-10 01:49:25,282 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-10 01:49:25,282 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-10 01:49:25,282 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-10 01:49:25,282 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-10 01:49:25,283 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-10 01:49:25,283 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-10 01:49:25,283 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-10 01:49:25,283 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-10 01:49:25,283 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-10 01:49:25,283 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-10 01:49:25,283 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-11-10 01:49:25,283 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-10 01:49:25,283 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-10 01:49:25,283 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-10 01:49:25,283 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES 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/working_dir_4f7d393f-b667-4c3e-8364-2e826c620d7e/bin-2019/utaipan 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 -> Taipan 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 [2018-11-10 01:49:25,309 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-10 01:49:25,317 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-10 01:49:25,320 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-10 01:49:25,321 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-10 01:49:25,321 INFO L276 PluginConnector]: CDTParser initialized [2018-11-10 01:49:25,322 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_4f7d393f-b667-4c3e-8364-2e826c620d7e/bin-2019/utaipan/../../sv-benchmarks/c/ldv-regression/mutex_lock_struct_true-termination.c_false-unreach-call.i [2018-11-10 01:49:25,356 INFO L218 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_4f7d393f-b667-4c3e-8364-2e826c620d7e/bin-2019/utaipan/data/686338f13/866b90e4b8c0492fbe1f5ee41d3c5f2f/FLAG93b5d9d9a [2018-11-10 01:49:25,744 INFO L298 CDTParser]: Found 1 translation units. [2018-11-10 01:49:25,744 INFO L158 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_4f7d393f-b667-4c3e-8364-2e826c620d7e/sv-benchmarks/c/ldv-regression/mutex_lock_struct_true-termination.c_false-unreach-call.i [2018-11-10 01:49:25,747 INFO L346 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_4f7d393f-b667-4c3e-8364-2e826c620d7e/bin-2019/utaipan/data/686338f13/866b90e4b8c0492fbe1f5ee41d3c5f2f/FLAG93b5d9d9a [2018-11-10 01:49:25,755 INFO L354 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_4f7d393f-b667-4c3e-8364-2e826c620d7e/bin-2019/utaipan/data/686338f13/866b90e4b8c0492fbe1f5ee41d3c5f2f [2018-11-10 01:49:25,757 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-10 01:49:25,758 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-10 01:49:25,759 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-10 01:49:25,759 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-10 01:49:25,761 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-10 01:49:25,761 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 01:49:25" (1/1) ... [2018-11-10 01:49:25,763 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@236dc686 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:49:25, skipping insertion in model container [2018-11-10 01:49:25,763 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 01:49:25" (1/1) ... [2018-11-10 01:49:25,769 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-10 01:49:25,779 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-11-10 01:49:25,864 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-10 01:49:25,869 INFO L189 MainTranslator]: Completed pre-run [2018-11-10 01:49:25,878 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-10 01:49:25,889 INFO L193 MainTranslator]: Completed translation [2018-11-10 01:49:25,889 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:49:25 WrapperNode [2018-11-10 01:49:25,889 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-10 01:49:25,890 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-10 01:49:25,890 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-10 01:49:25,890 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-10 01:49:25,895 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:49:25" (1/1) ... [2018-11-10 01:49:25,900 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:49:25" (1/1) ... [2018-11-10 01:49:25,911 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-10 01:49:25,911 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-10 01:49:25,912 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-10 01:49:25,912 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-10 01:49:25,917 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:49:25" (1/1) ... [2018-11-10 01:49:25,917 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:49:25" (1/1) ... [2018-11-10 01:49:25,918 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:49:25" (1/1) ... [2018-11-10 01:49:25,918 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:49:25" (1/1) ... [2018-11-10 01:49:25,920 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:49:25" (1/1) ... [2018-11-10 01:49:25,922 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:49:25" (1/1) ... [2018-11-10 01:49:25,922 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:49:25" (1/1) ... [2018-11-10 01:49:25,923 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-10 01:49:25,923 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-10 01:49:25,924 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-10 01:49:25,924 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-10 01:49:25,924 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:49:25" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_4f7d393f-b667-4c3e-8364-2e826c620d7e/bin-2019/utaipan/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 [2018-11-10 01:49:25,998 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-10 01:49:25,998 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-10 01:49:25,998 INFO L130 BoogieDeclarations]: Found specification of procedure err [2018-11-10 01:49:25,998 INFO L138 BoogieDeclarations]: Found implementation of procedure err [2018-11-10 01:49:25,998 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2018-11-10 01:49:25,998 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock [2018-11-10 01:49:25,998 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-10 01:49:25,998 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-10 01:49:25,999 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-10 01:49:25,999 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-10 01:49:26,105 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-10 01:49:26,106 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 01:49:26 BoogieIcfgContainer [2018-11-10 01:49:26,106 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-10 01:49:26,107 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-10 01:49:26,107 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-10 01:49:26,109 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-10 01:49:26,110 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.11 01:49:25" (1/3) ... [2018-11-10 01:49:26,110 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@427342fb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 01:49:26, skipping insertion in model container [2018-11-10 01:49:26,111 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:49:25" (2/3) ... [2018-11-10 01:49:26,111 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@427342fb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 01:49:26, skipping insertion in model container [2018-11-10 01:49:26,111 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 01:49:26" (3/3) ... [2018-11-10 01:49:26,112 INFO L112 eAbstractionObserver]: Analyzing ICFG mutex_lock_struct_true-termination.c_false-unreach-call.i [2018-11-10 01:49:26,121 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-10 01:49:26,127 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-10 01:49:26,140 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-10 01:49:26,166 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-10 01:49:26,166 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-10 01:49:26,167 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-10 01:49:26,167 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-10 01:49:26,167 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-10 01:49:26,167 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-10 01:49:26,167 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-10 01:49:26,167 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-10 01:49:26,181 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states. [2018-11-10 01:49:26,187 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2018-11-10 01:49:26,187 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 01:49:26,188 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 01:49:26,190 INFO L424 AbstractCegarLoop]: === Iteration 1 === [errErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-10 01:49:26,194 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 01:49:26,194 INFO L82 PathProgramCache]: Analyzing trace with hash 1740940083, now seen corresponding path program 1 times [2018-11-10 01:49:26,196 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-10 01:49:26,236 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 01:49:26,236 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 01:49:26,236 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 01:49:26,236 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-10 01:49:26,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 01:49:26,349 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 01:49:26,350 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 01:49:26,350 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-11-10 01:49:26,350 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-10 01:49:26,353 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-10 01:49:26,360 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-10 01:49:26,361 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-11-10 01:49:26,362 INFO L87 Difference]: Start difference. First operand 23 states. Second operand 5 states. [2018-11-10 01:49:26,418 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 01:49:26,419 INFO L93 Difference]: Finished difference Result 40 states and 45 transitions. [2018-11-10 01:49:26,419 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-11-10 01:49:26,420 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 11 [2018-11-10 01:49:26,421 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 01:49:26,427 INFO L225 Difference]: With dead ends: 40 [2018-11-10 01:49:26,427 INFO L226 Difference]: Without dead ends: 18 [2018-11-10 01:49:26,430 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-11-10 01:49:26,444 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2018-11-10 01:49:26,455 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2018-11-10 01:49:26,456 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2018-11-10 01:49:26,457 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 17 transitions. [2018-11-10 01:49:26,458 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 17 transitions. Word has length 11 [2018-11-10 01:49:26,458 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 01:49:26,458 INFO L481 AbstractCegarLoop]: Abstraction has 18 states and 17 transitions. [2018-11-10 01:49:26,458 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-10 01:49:26,458 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 17 transitions. [2018-11-10 01:49:26,459 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2018-11-10 01:49:26,459 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 01:49:26,459 INFO L375 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 01:49:26,459 INFO L424 AbstractCegarLoop]: === Iteration 2 === [errErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-10 01:49:26,459 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 01:49:26,460 INFO L82 PathProgramCache]: Analyzing trace with hash 68232763, now seen corresponding path program 1 times [2018-11-10 01:49:26,460 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-10 01:49:26,461 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 01:49:26,461 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 01:49:26,461 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 01:49:26,461 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-10 01:49:26,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 01:49:26,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 01:49:26,507 INFO L442 BasicCegarLoop]: Counterexample might be feasible [2018-11-10 01:49:26,516 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 01:49:26,517 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 01:49:26,517 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 01:49:26,518 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 01:49:26,526 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.11 01:49:26 BoogieIcfgContainer [2018-11-10 01:49:26,526 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-10 01:49:26,527 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-10 01:49:26,527 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-10 01:49:26,527 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-10 01:49:26,527 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 01:49:26" (3/4) ... [2018-11-10 01:49:26,529 INFO L138 WitnessPrinter]: Generating witness for reachability counterexample [2018-11-10 01:49:26,529 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 01:49:26,529 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 01:49:26,530 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 01:49:26,530 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 01:49:26,555 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_4f7d393f-b667-4c3e-8364-2e826c620d7e/bin-2019/utaipan/witness.graphml [2018-11-10 01:49:26,555 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-10 01:49:26,556 INFO L168 Benchmark]: Toolchain (without parser) took 798.56 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 167.2 MB). Free memory was 960.2 MB in the beginning and 1.1 GB in the end (delta: -156.1 MB). Peak memory consumption was 11.2 MB. Max. memory is 11.5 GB. [2018-11-10 01:49:26,557 INFO L168 Benchmark]: CDTParser took 0.10 ms. Allocated memory is still 1.0 GB. Free memory is still 985.4 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-10 01:49:26,557 INFO L168 Benchmark]: CACSL2BoogieTranslator took 131.14 ms. Allocated memory is still 1.0 GB. Free memory was 960.2 MB in the beginning and 944.1 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. [2018-11-10 01:49:26,557 INFO L168 Benchmark]: Boogie Procedure Inliner took 21.34 ms. Allocated memory is still 1.0 GB. Free memory is still 944.1 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-10 01:49:26,558 INFO L168 Benchmark]: Boogie Preprocessor took 11.78 ms. Allocated memory is still 1.0 GB. Free memory is still 941.4 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-10 01:49:26,558 INFO L168 Benchmark]: RCFGBuilder took 182.76 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 167.2 MB). Free memory was 941.4 MB in the beginning and 1.2 GB in the end (delta: -209.5 MB). Peak memory consumption was 14.7 MB. Max. memory is 11.5 GB. [2018-11-10 01:49:26,558 INFO L168 Benchmark]: TraceAbstraction took 419.76 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 34.6 MB). Peak memory consumption was 34.6 MB. Max. memory is 11.5 GB. [2018-11-10 01:49:26,559 INFO L168 Benchmark]: Witness Printer took 28.94 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. [2018-11-10 01:49:26,560 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10 ms. Allocated memory is still 1.0 GB. Free memory is still 985.4 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 131.14 ms. Allocated memory is still 1.0 GB. Free memory was 960.2 MB in the beginning and 944.1 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 21.34 ms. Allocated memory is still 1.0 GB. Free memory is still 944.1 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 11.78 ms. Allocated memory is still 1.0 GB. Free memory is still 941.4 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 182.76 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 167.2 MB). Free memory was 941.4 MB in the beginning and 1.2 GB in the end (delta: -209.5 MB). Peak memory consumption was 14.7 MB. Max. memory is 11.5 GB. * TraceAbstraction took 419.76 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 34.6 MB). Peak memory consumption was 34.6 MB. Max. memory is 11.5 GB. * Witness Printer took 28.94 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.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled * 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] CALL struct mutex m; [L33] RET struct mutex m; [L34] CALL m.is_locked = 0 [L34] RET m.is_locked = 0 [L36] CALL mutex_lock(&m) [L21] CALL, EXPR a->is_locked [L21] RET, EXPR a->is_locked [L21] COND FALSE !(a->is_locked == 1) [L22] CALL a->is_locked = 1 [L22] RET a->is_locked = 1 [L36] mutex_lock(&m) [L40] CALL mutex_lock(&m) [L21] CALL, EXPR a->is_locked [L21] RET, EXPR a->is_locked [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, 0.3s OverallTime, 2 OverallIterations, 2 TraceHistogramMax, 0.0s 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, 0.0s 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, 0.0s 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...