./Ultimate.py --spec ../../sv-benchmarks/c/ReachSafety.prp --file ../../sv-benchmarks/c/ldv-regression/rule57_ebda_blast_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_829854cc-8fa2-400f-bf9d-3b8fac808986/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_829854cc-8fa2-400f-bf9d-3b8fac808986/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_829854cc-8fa2-400f-bf9d-3b8fac808986/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_829854cc-8fa2-400f-bf9d-3b8fac808986/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-regression/rule57_ebda_blast_true-termination.c_false-unreach-call.i -s /tmp/vcloud-vcloud-master/worker/working_dir_829854cc-8fa2-400f-bf9d-3b8fac808986/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_829854cc-8fa2-400f-bf9d-3b8fac808986/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 84a634627af2442e81d46eafc5c0f2aae0363700 .................................................................................................................................................................................................................................................................................................................................. 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 13:00:44,417 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-10 13:00:44,418 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-10 13:00:44,425 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-10 13:00:44,425 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-10 13:00:44,426 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-10 13:00:44,427 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-10 13:00:44,428 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-10 13:00:44,429 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-10 13:00:44,430 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-10 13:00:44,431 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-10 13:00:44,431 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-10 13:00:44,431 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-10 13:00:44,432 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-10 13:00:44,433 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-10 13:00:44,434 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-10 13:00:44,434 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-10 13:00:44,436 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-10 13:00:44,437 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-10 13:00:44,438 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-10 13:00:44,439 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-10 13:00:44,440 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-10 13:00:44,441 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-10 13:00:44,442 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-10 13:00:44,442 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-10 13:00:44,443 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-10 13:00:44,443 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-10 13:00:44,444 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-10 13:00:44,445 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-10 13:00:44,445 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-10 13:00:44,446 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-10 13:00:44,446 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-10 13:00:44,446 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-10 13:00:44,446 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-10 13:00:44,447 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-10 13:00:44,448 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-10 13:00:44,448 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_829854cc-8fa2-400f-bf9d-3b8fac808986/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2018-11-10 13:00:44,455 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-10 13:00:44,455 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-10 13:00:44,456 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-10 13:00:44,456 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-10 13:00:44,456 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-11-10 13:00:44,456 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-10 13:00:44,456 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-11-10 13:00:44,457 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-10 13:00:44,457 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-11-10 13:00:44,457 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-11-10 13:00:44,457 INFO L133 SettingsManager]: * Interval Domain=false [2018-11-10 13:00:44,458 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-10 13:00:44,458 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-10 13:00:44,458 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-10 13:00:44,458 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-10 13:00:44,458 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-10 13:00:44,459 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-10 13:00:44,459 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-10 13:00:44,459 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-10 13:00:44,459 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-10 13:00:44,459 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-10 13:00:44,459 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-10 13:00:44,460 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-10 13:00:44,460 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-10 13:00:44,460 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-10 13:00:44,460 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-10 13:00:44,460 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-10 13:00:44,460 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-10 13:00:44,460 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-10 13:00:44,460 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-10 13:00:44,461 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-11-10 13:00:44,461 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-10 13:00:44,461 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-10 13:00:44,461 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-10 13:00:44,461 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_829854cc-8fa2-400f-bf9d-3b8fac808986/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 -> 84a634627af2442e81d46eafc5c0f2aae0363700 [2018-11-10 13:00:44,488 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-10 13:00:44,498 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-10 13:00:44,500 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-10 13:00:44,502 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-10 13:00:44,502 INFO L276 PluginConnector]: CDTParser initialized [2018-11-10 13:00:44,502 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_829854cc-8fa2-400f-bf9d-3b8fac808986/bin-2019/utaipan/../../sv-benchmarks/c/ldv-regression/rule57_ebda_blast_true-termination.c_false-unreach-call.i [2018-11-10 13:00:44,542 INFO L218 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_829854cc-8fa2-400f-bf9d-3b8fac808986/bin-2019/utaipan/data/214f99ea6/768f70a2608a4972909d2f6e99581dda/FLAG33b1f8ab9 [2018-11-10 13:00:44,949 INFO L298 CDTParser]: Found 1 translation units. [2018-11-10 13:00:44,950 INFO L158 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_829854cc-8fa2-400f-bf9d-3b8fac808986/sv-benchmarks/c/ldv-regression/rule57_ebda_blast_true-termination.c_false-unreach-call.i [2018-11-10 13:00:44,955 INFO L346 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_829854cc-8fa2-400f-bf9d-3b8fac808986/bin-2019/utaipan/data/214f99ea6/768f70a2608a4972909d2f6e99581dda/FLAG33b1f8ab9 [2018-11-10 13:00:44,966 INFO L354 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_829854cc-8fa2-400f-bf9d-3b8fac808986/bin-2019/utaipan/data/214f99ea6/768f70a2608a4972909d2f6e99581dda [2018-11-10 13:00:44,968 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-10 13:00:44,969 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-10 13:00:44,970 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-10 13:00:44,970 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-10 13:00:44,972 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-10 13:00:44,972 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 01:00:44" (1/1) ... [2018-11-10 13:00:44,974 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6b52ffc2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:00:44, skipping insertion in model container [2018-11-10 13:00:44,974 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 01:00:44" (1/1) ... [2018-11-10 13:00:44,979 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-10 13:00:44,993 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-11-10 13:00:45,096 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-10 13:00:45,105 INFO L189 MainTranslator]: Completed pre-run [2018-11-10 13:00:45,117 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-10 13:00:45,127 INFO L193 MainTranslator]: Completed translation [2018-11-10 13:00:45,127 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:00:45 WrapperNode [2018-11-10 13:00:45,127 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-10 13:00:45,128 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-10 13:00:45,128 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-10 13:00:45,128 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-10 13:00:45,133 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:00:45" (1/1) ... [2018-11-10 13:00:45,139 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:00:45" (1/1) ... [2018-11-10 13:00:45,153 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-10 13:00:45,153 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-10 13:00:45,153 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-10 13:00:45,153 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-10 13:00:45,159 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:00:45" (1/1) ... [2018-11-10 13:00:45,160 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:00:45" (1/1) ... [2018-11-10 13:00:45,161 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:00:45" (1/1) ... [2018-11-10 13:00:45,161 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:00:45" (1/1) ... [2018-11-10 13:00:45,166 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:00:45" (1/1) ... [2018-11-10 13:00:45,168 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:00:45" (1/1) ... [2018-11-10 13:00:45,169 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:00:45" (1/1) ... [2018-11-10 13:00:45,171 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-10 13:00:45,171 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-10 13:00:45,171 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-10 13:00:45,171 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-10 13:00:45,172 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:00:45" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_829854cc-8fa2-400f-bf9d-3b8fac808986/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 13:00:45,261 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2018-11-10 13:00:45,261 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2018-11-10 13:00:45,262 INFO L130 BoogieDeclarations]: Found specification of procedure __blast_assert [2018-11-10 13:00:45,262 INFO L138 BoogieDeclarations]: Found implementation of procedure __blast_assert [2018-11-10 13:00:45,262 INFO L130 BoogieDeclarations]: Found specification of procedure ibmphp_init_devno [2018-11-10 13:00:45,262 INFO L138 BoogieDeclarations]: Found implementation of procedure ibmphp_init_devno [2018-11-10 13:00:45,262 INFO L130 BoogieDeclarations]: Found specification of procedure ebda_rsrc_controller [2018-11-10 13:00:45,262 INFO L138 BoogieDeclarations]: Found implementation of procedure ebda_rsrc_controller [2018-11-10 13:00:45,262 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-10 13:00:45,263 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-10 13:00:45,263 INFO L130 BoogieDeclarations]: Found specification of procedure ibmphp_find_same_bus_num [2018-11-10 13:00:45,263 INFO L138 BoogieDeclarations]: Found implementation of procedure ibmphp_find_same_bus_num [2018-11-10 13:00:45,263 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-10 13:00:45,263 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-10 13:00:45,263 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-10 13:00:45,263 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-10 13:00:45,263 INFO L130 BoogieDeclarations]: Found specification of procedure fillslotinfo [2018-11-10 13:00:45,263 INFO L138 BoogieDeclarations]: Found implementation of procedure fillslotinfo [2018-11-10 13:00:45,540 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-10 13:00:45,540 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 01:00:45 BoogieIcfgContainer [2018-11-10 13:00:45,540 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-10 13:00:45,541 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-10 13:00:45,542 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-10 13:00:45,544 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-10 13:00:45,545 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.11 01:00:44" (1/3) ... [2018-11-10 13:00:45,545 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@25c1b6db and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 01:00:45, skipping insertion in model container [2018-11-10 13:00:45,545 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:00:45" (2/3) ... [2018-11-10 13:00:45,546 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@25c1b6db and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 01:00:45, skipping insertion in model container [2018-11-10 13:00:45,546 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 01:00:45" (3/3) ... [2018-11-10 13:00:45,548 INFO L112 eAbstractionObserver]: Analyzing ICFG rule57_ebda_blast_true-termination.c_false-unreach-call.i [2018-11-10 13:00:45,556 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-10 13:00:45,563 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-10 13:00:45,576 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-10 13:00:45,602 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-10 13:00:45,602 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-10 13:00:45,603 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-10 13:00:45,603 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-10 13:00:45,603 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-10 13:00:45,603 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-10 13:00:45,603 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-10 13:00:45,603 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-10 13:00:45,614 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states. [2018-11-10 13:00:45,617 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2018-11-10 13:00:45,617 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 13:00:45,618 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 13:00:45,619 INFO L424 AbstractCegarLoop]: === Iteration 1 === [__blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-10 13:00:45,622 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 13:00:45,623 INFO L82 PathProgramCache]: Analyzing trace with hash -1220088288, now seen corresponding path program 1 times [2018-11-10 13:00:45,624 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-10 13:00:45,654 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 13:00:45,655 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 13:00:45,655 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 13:00:45,655 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-10 13:00:45,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 13:00:45,763 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 13:00:45,765 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 13:00:45,765 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-10 13:00:45,765 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-10 13:00:45,768 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-10 13:00:45,776 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-10 13:00:45,776 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-11-10 13:00:45,778 INFO L87 Difference]: Start difference. First operand 49 states. Second operand 4 states. [2018-11-10 13:00:45,893 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 13:00:45,893 INFO L93 Difference]: Finished difference Result 77 states and 87 transitions. [2018-11-10 13:00:45,893 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-11-10 13:00:45,894 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 16 [2018-11-10 13:00:45,895 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 13:00:45,899 INFO L225 Difference]: With dead ends: 77 [2018-11-10 13:00:45,899 INFO L226 Difference]: Without dead ends: 43 [2018-11-10 13:00:45,901 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-11-10 13:00:45,912 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2018-11-10 13:00:45,924 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 43. [2018-11-10 13:00:45,925 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 43 states. [2018-11-10 13:00:45,926 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 45 transitions. [2018-11-10 13:00:45,927 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 45 transitions. Word has length 16 [2018-11-10 13:00:45,927 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 13:00:45,927 INFO L481 AbstractCegarLoop]: Abstraction has 43 states and 45 transitions. [2018-11-10 13:00:45,927 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-10 13:00:45,928 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 45 transitions. [2018-11-10 13:00:45,928 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2018-11-10 13:00:45,928 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 13:00:45,928 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 13:00:45,929 INFO L424 AbstractCegarLoop]: === Iteration 2 === [__blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-10 13:00:45,929 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 13:00:45,929 INFO L82 PathProgramCache]: Analyzing trace with hash -887720823, now seen corresponding path program 1 times [2018-11-10 13:00:45,929 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-10 13:00:45,930 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 13:00:45,930 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 13:00:45,931 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 13:00:45,931 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-10 13:00:45,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 13:00:45,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 13:00:46,008 INFO L442 BasicCegarLoop]: Counterexample might be feasible [2018-11-10 13:00:46,037 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.11 01:00:46 BoogieIcfgContainer [2018-11-10 13:00:46,037 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-10 13:00:46,038 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-10 13:00:46,038 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-10 13:00:46,038 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-10 13:00:46,038 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 01:00:45" (3/4) ... [2018-11-10 13:00:46,040 INFO L138 WitnessPrinter]: Generating witness for reachability counterexample [2018-11-10 13:00:46,082 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_829854cc-8fa2-400f-bf9d-3b8fac808986/bin-2019/utaipan/witness.graphml [2018-11-10 13:00:46,082 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-10 13:00:46,083 INFO L168 Benchmark]: Toolchain (without parser) took 1114.13 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 133.7 MB). Free memory was 960.2 MB in the beginning and 1.1 GB in the end (delta: -93.2 MB). Peak memory consumption was 40.5 MB. Max. memory is 11.5 GB. [2018-11-10 13:00:46,084 INFO L168 Benchmark]: CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 985.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-10 13:00:46,084 INFO L168 Benchmark]: CACSL2BoogieTranslator took 157.69 ms. Allocated memory is still 1.0 GB. Free memory was 960.2 MB in the beginning and 949.5 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-11-10 13:00:46,084 INFO L168 Benchmark]: Boogie Procedure Inliner took 25.18 ms. Allocated memory is still 1.0 GB. Free memory was 949.5 MB in the beginning and 946.8 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-11-10 13:00:46,084 INFO L168 Benchmark]: Boogie Preprocessor took 17.65 ms. Allocated memory is still 1.0 GB. Free memory was 946.8 MB in the beginning and 944.1 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-11-10 13:00:46,085 INFO L168 Benchmark]: RCFGBuilder took 369.56 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 133.7 MB). Free memory was 944.1 MB in the beginning and 1.1 GB in the end (delta: -161.5 MB). Peak memory consumption was 15.4 MB. Max. memory is 11.5 GB. [2018-11-10 13:00:46,085 INFO L168 Benchmark]: TraceAbstraction took 496.05 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: 46.8 MB). Peak memory consumption was 46.8 MB. Max. memory is 11.5 GB. [2018-11-10 13:00:46,085 INFO L168 Benchmark]: Witness Printer took 44.55 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: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2018-11-10 13:00:46,087 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 985.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 157.69 ms. Allocated memory is still 1.0 GB. Free memory was 960.2 MB in the beginning and 949.5 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 25.18 ms. Allocated memory is still 1.0 GB. Free memory was 949.5 MB in the beginning and 946.8 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 17.65 ms. Allocated memory is still 1.0 GB. Free memory was 946.8 MB in the beginning and 944.1 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 369.56 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 133.7 MB). Free memory was 944.1 MB in the beginning and 1.1 GB in the end (delta: -161.5 MB). Peak memory consumption was 15.4 MB. Max. memory is 11.5 GB. * TraceAbstraction took 496.05 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: 46.8 MB). Peak memory consumption was 46.8 MB. Max. memory is 11.5 GB. * Witness Printer took 44.55 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: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 6]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L40] int used_tmp_slot = 0; [L41] int freed_tmp_slot = 1; [L39] struct slot *tmp_slot; VAL [\old(freed_tmp_slot)=15, \old(tmp_slot)=6, \old(tmp_slot)=9, \old(used_tmp_slot)=10, freed_tmp_slot=1, tmp_slot={0:0}, used_tmp_slot=0] [L132] CALL ebda_rsrc_controller() VAL [\old(freed_tmp_slot)=1, \old(tmp_slot)=0, \old(tmp_slot)=0, \old(used_tmp_slot)=0, freed_tmp_slot=1, tmp_slot={0:0}, used_tmp_slot=0] [L69] struct hotplug_slot *hp_slot_ptr; [L71] struct bus_info *bus_info_ptr1; [L72] int rc; [L74] EXPR, FCALL kzalloc(sizeof(*hp_slot_ptr), 1) [L74] hp_slot_ptr = kzalloc(sizeof(*hp_slot_ptr), 1) [L75] COND FALSE !(!hp_slot_ptr) [L79] CALL hp_slot_ptr->b = 5 [L79] RET hp_slot_ptr->b = 5 [L81] EXPR, FCALL kzalloc(sizeof(*tmp_slot), 1) [L81] tmp_slot = kzalloc(sizeof(*tmp_slot), 1) [L83] COND FALSE !(!tmp_slot) [L88] used_tmp_slot = 0 [L89] freed_tmp_slot = 0 [L91] CALL tmp_slot->a = 2 [L91] RET tmp_slot->a = 2 [L92] CALL tmp_slot->b = 3 [L92] RET tmp_slot->b = 3 [L94] CALL, EXPR ibmphp_find_same_bus_num() VAL [\old(freed_tmp_slot)=1, \old(tmp_slot)=0, \old(tmp_slot)=0, \old(used_tmp_slot)=0, freed_tmp_slot=0, tmp_slot={13:1}, used_tmp_slot=0] [L53] RET return __VERIFIER_nondet_pointer(); [L94] EXPR ibmphp_find_same_bus_num() VAL [\old(freed_tmp_slot)=1, \old(tmp_slot)=0, \old(tmp_slot)=0, \old(used_tmp_slot)=0, freed_tmp_slot=0, tmp_slot={13:1}, used_tmp_slot=0] [L94] bus_info_ptr1 = ibmphp_find_same_bus_num() [L95] COND TRUE !bus_info_ptr1 [L96] rc = -3 VAL [\old(freed_tmp_slot)=1, \old(tmp_slot)=0, \old(tmp_slot)=0, \old(used_tmp_slot)=0, freed_tmp_slot=0, tmp_slot={13:1}, used_tmp_slot=0] [L123] CALL, EXPR hp_slot_ptr->private [L123] RET, EXPR hp_slot_ptr->private [L123] CALL kfree(hp_slot_ptr->private) VAL [\old(freed_tmp_slot)=0, \old(tmp_slot)=0, \old(tmp_slot)=0, \old(used_tmp_slot)=0, freed_tmp_slot=0, p={0:0}, tmp_slot={13:1}, used_tmp_slot=0] [L46] COND FALSE, RET !(p!=0 && p==tmp_slot) VAL [\old(freed_tmp_slot)=0, \old(tmp_slot)=0, \old(tmp_slot)=0, \old(used_tmp_slot)=0, freed_tmp_slot=0, p={0:0}, p={0:0}, tmp_slot={13:1}, used_tmp_slot=0] [L123] kfree(hp_slot_ptr->private) VAL [\old(freed_tmp_slot)=1, \old(tmp_slot)=0, \old(tmp_slot)=0, \old(used_tmp_slot)=0, freed_tmp_slot=0, tmp_slot={13:1}, used_tmp_slot=0] [L128] RET return rc; VAL [\old(freed_tmp_slot)=1, \old(tmp_slot)=0, \old(tmp_slot)=0, \old(used_tmp_slot)=0, freed_tmp_slot=0, tmp_slot={13:1}, used_tmp_slot=0] [L132] ebda_rsrc_controller() VAL [\old(freed_tmp_slot)=1, \old(tmp_slot)=0, \old(tmp_slot)=0, \old(used_tmp_slot)=0, ebda_rsrc_controller()=-3, freed_tmp_slot=0, tmp_slot={13:1}, used_tmp_slot=0] [L133] COND TRUE !used_tmp_slot VAL [\old(freed_tmp_slot)=1, \old(tmp_slot)=0, \old(tmp_slot)=0, \old(used_tmp_slot)=0, freed_tmp_slot=0, tmp_slot={13:1}, used_tmp_slot=0] [L134] COND FALSE !((freed_tmp_slot) ? (0) : __blast_assert ()) VAL [\old(freed_tmp_slot)=1, \old(tmp_slot)=0, \old(tmp_slot)=0, \old(used_tmp_slot)=0, freed_tmp_slot=0, tmp_slot={13:1}, used_tmp_slot=0] [L134] CALL __blast_assert () VAL [\old(freed_tmp_slot)=1, \old(tmp_slot)=0, \old(tmp_slot)=0, \old(used_tmp_slot)=0, freed_tmp_slot=0, tmp_slot={13:1}, used_tmp_slot=0] [L6] __VERIFIER_error() VAL [\old(freed_tmp_slot)=1, \old(tmp_slot)=0, \old(tmp_slot)=0, \old(used_tmp_slot)=0, freed_tmp_slot=0, tmp_slot={13:1}, used_tmp_slot=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 9 procedures, 49 locations, 1 error locations. UNSAFE Result, 0.4s OverallTime, 2 OverallIterations, 1 TraceHistogramMax, 0.1s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 52 SDtfs, 37 SDslu, 49 SDs, 0 SdLazy, 29 SolverSat, 12 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=49occurred 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, 46 NumberOfCodeBlocks, 46 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 15 ConstructedInterpolants, 0 QuantifiedInterpolants, 690 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...