java -Xmx6000000000 -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data ./data --generate-csv --csv-dir ../../../releaseScripts/default/UAutomizer-linux/csv -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/ai/eq-bench/svcomp-DerefFreeMemtrack-32bit-Automizer_Taipan+AI_EQ_precise.epf -i ../../../trunk/examples/svcomp/ldv-memsafety/memleaks_test22_2_true-valid-memsafety_true-termination.i -------------------------------------------------------------------------------- This is Ultimate 0.1.23-6b94a2f [2018-01-25 00:10:55,859 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-01-25 00:10:55,861 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-01-25 00:10:55,876 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-01-25 00:10:55,876 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-01-25 00:10:55,877 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-01-25 00:10:55,878 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-01-25 00:10:55,880 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-01-25 00:10:55,882 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-01-25 00:10:55,883 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-01-25 00:10:55,884 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-01-25 00:10:55,884 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-01-25 00:10:55,885 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-01-25 00:10:55,886 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-01-25 00:10:55,887 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-01-25 00:10:55,889 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-01-25 00:10:55,892 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-01-25 00:10:55,894 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-01-25 00:10:55,895 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-01-25 00:10:55,896 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-01-25 00:10:55,898 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-01-25 00:10:55,904 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-01-25 00:10:55,904 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-01-25 00:10:55,904 INFO L98 SettingsManager]: Beginning loading settings from /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/ai/eq-bench/svcomp-DerefFreeMemtrack-32bit-Automizer_Taipan+AI_EQ_precise.epf [2018-01-25 00:10:55,913 INFO L110 SettingsManager]: Loading preferences was successful [2018-01-25 00:10:55,913 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-01-25 00:10:55,914 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-01-25 00:10:55,914 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-01-25 00:10:55,914 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-01-25 00:10:55,914 INFO L133 SettingsManager]: * Weq Fattening=true [2018-01-25 00:10:55,914 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=VPDomain [2018-01-25 00:10:55,915 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-01-25 00:10:55,915 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-01-25 00:10:55,915 INFO L133 SettingsManager]: * sizeof long=4 [2018-01-25 00:10:55,915 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-01-25 00:10:55,915 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-01-25 00:10:55,915 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-01-25 00:10:55,916 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-01-25 00:10:55,916 INFO L133 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2018-01-25 00:10:55,916 INFO L133 SettingsManager]: * Bitprecise bitfields=true [2018-01-25 00:10:55,916 INFO L133 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2018-01-25 00:10:55,916 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-01-25 00:10:55,916 INFO L133 SettingsManager]: * sizeof long double=12 [2018-01-25 00:10:55,916 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-01-25 00:10:55,917 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-01-25 00:10:55,917 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-01-25 00:10:55,917 INFO L133 SettingsManager]: * Add additional assume for each assert=false [2018-01-25 00:10:55,917 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-01-25 00:10:55,917 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-01-25 00:10:55,918 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-01-25 00:10:55,918 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-01-25 00:10:55,918 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-01-25 00:10:55,918 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-01-25 00:10:55,918 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-01-25 00:10:55,918 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-01-25 00:10:55,918 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-01-25 00:10:55,918 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-01-25 00:10:55,919 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-01-25 00:10:55,919 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-01-25 00:10:55,919 INFO L133 SettingsManager]: * TransformationType=HEAP_SEPARATOR [2018-01-25 00:10:55,951 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-01-25 00:10:55,962 INFO L266 ainManager$Toolchain]: [Toolchain 1]: Parser(s) successfully initialized [2018-01-25 00:10:55,966 INFO L222 ainManager$Toolchain]: [Toolchain 1]: Toolchain data selected. [2018-01-25 00:10:55,967 INFO L271 PluginConnector]: Initializing CDTParser... [2018-01-25 00:10:55,967 INFO L276 PluginConnector]: CDTParser initialized [2018-01-25 00:10:55,968 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-memsafety/memleaks_test22_2_true-valid-memsafety_true-termination.i [2018-01-25 00:10:56,143 INFO L304 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-01-25 00:10:56,149 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-01-25 00:10:56,149 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-01-25 00:10:56,149 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-01-25 00:10:56,154 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-01-25 00:10:56,156 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.01 12:10:56" (1/1) ... [2018-01-25 00:10:56,159 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@388a8c3f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.01 12:10:56, skipping insertion in model container [2018-01-25 00:10:56,159 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.01 12:10:56" (1/1) ... [2018-01-25 00:10:56,172 INFO L153 Dispatcher]: Using SV-COMP mode [2018-01-25 00:10:56,219 INFO L153 Dispatcher]: Using SV-COMP mode [2018-01-25 00:10:56,353 INFO L450 PostProcessor]: Settings: Checked method=main [2018-01-25 00:10:56,379 INFO L450 PostProcessor]: Settings: Checked method=main [2018-01-25 00:10:56,393 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.01 12:10:56 WrapperNode [2018-01-25 00:10:56,393 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-01-25 00:10:56,394 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-01-25 00:10:56,394 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-01-25 00:10:56,394 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-01-25 00:10:56,405 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.01 12:10:56" (1/1) ... [2018-01-25 00:10:56,405 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.01 12:10:56" (1/1) ... [2018-01-25 00:10:56,417 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.01 12:10:56" (1/1) ... [2018-01-25 00:10:56,417 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.01 12:10:56" (1/1) ... [2018-01-25 00:10:56,428 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.01 12:10:56" (1/1) ... [2018-01-25 00:10:56,433 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.01 12:10:56" (1/1) ... [2018-01-25 00:10:56,435 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.01 12:10:56" (1/1) ... [2018-01-25 00:10:56,439 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-01-25 00:10:56,440 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-01-25 00:10:56,440 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-01-25 00:10:56,440 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-01-25 00:10:56,441 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.01 12:10:56" (1/1) ... No working directory specified, using /storage/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 [2018-01-25 00:10:56,488 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-01-25 00:10:56,488 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-01-25 00:10:56,489 INFO L136 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2018-01-25 00:10:56,489 INFO L136 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2018-01-25 00:10:56,489 INFO L136 BoogieDeclarations]: Found implementation of procedure LDV_INIT_LIST_HEAD [2018-01-25 00:10:56,489 INFO L136 BoogieDeclarations]: Found implementation of procedure ldv_atomic_add_return [2018-01-25 00:10:56,489 INFO L136 BoogieDeclarations]: Found implementation of procedure ldv_atomic_sub_return [2018-01-25 00:10:56,489 INFO L136 BoogieDeclarations]: Found implementation of procedure ldv_kref_sub [2018-01-25 00:10:56,490 INFO L136 BoogieDeclarations]: Found implementation of procedure ldv_kref_init [2018-01-25 00:10:56,490 INFO L136 BoogieDeclarations]: Found implementation of procedure ldv_kref_get [2018-01-25 00:10:56,490 INFO L136 BoogieDeclarations]: Found implementation of procedure ldv_kref_put [2018-01-25 00:10:56,490 INFO L136 BoogieDeclarations]: Found implementation of procedure ldv_kobject_cleanup [2018-01-25 00:10:56,490 INFO L136 BoogieDeclarations]: Found implementation of procedure ldv_kobject_release [2018-01-25 00:10:56,490 INFO L136 BoogieDeclarations]: Found implementation of procedure ldv_kobject_put [2018-01-25 00:10:56,491 INFO L136 BoogieDeclarations]: Found implementation of procedure ldv_kobject_get [2018-01-25 00:10:56,491 INFO L136 BoogieDeclarations]: Found implementation of procedure ldv_kobject_init_internal [2018-01-25 00:10:56,491 INFO L136 BoogieDeclarations]: Found implementation of procedure ldv_kobject_init [2018-01-25 00:10:56,491 INFO L136 BoogieDeclarations]: Found implementation of procedure ldv_kobject_create [2018-01-25 00:10:56,491 INFO L136 BoogieDeclarations]: Found implementation of procedure entry_point [2018-01-25 00:10:56,491 INFO L136 BoogieDeclarations]: Found implementation of procedure main [2018-01-25 00:10:56,492 INFO L128 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2018-01-25 00:10:56,492 INFO L128 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2018-01-25 00:10:56,492 INFO L128 BoogieDeclarations]: Found specification of procedure write~int [2018-01-25 00:10:56,492 INFO L128 BoogieDeclarations]: Found specification of procedure read~int [2018-01-25 00:10:56,492 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.free [2018-01-25 00:10:56,492 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-01-25 00:10:56,493 INFO L128 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-01-25 00:10:56,493 INFO L128 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2018-01-25 00:10:56,493 INFO L136 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2018-01-25 00:10:56,493 INFO L128 BoogieDeclarations]: Found specification of procedure malloc [2018-01-25 00:10:56,493 INFO L128 BoogieDeclarations]: Found specification of procedure free [2018-01-25 00:10:56,493 INFO L128 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2018-01-25 00:10:56,494 INFO L128 BoogieDeclarations]: Found specification of procedure memset [2018-01-25 00:10:56,494 INFO L128 BoogieDeclarations]: Found specification of procedure ldv_malloc [2018-01-25 00:10:56,494 INFO L128 BoogieDeclarations]: Found specification of procedure LDV_INIT_LIST_HEAD [2018-01-25 00:10:56,494 INFO L128 BoogieDeclarations]: Found specification of procedure ldv_atomic_add_return [2018-01-25 00:10:56,494 INFO L128 BoogieDeclarations]: Found specification of procedure ldv_atomic_sub_return [2018-01-25 00:10:56,494 INFO L128 BoogieDeclarations]: Found specification of procedure ldv_kref_sub [2018-01-25 00:10:56,495 INFO L128 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2018-01-25 00:10:56,495 INFO L128 BoogieDeclarations]: Found specification of procedure ldv_kref_init [2018-01-25 00:10:56,495 INFO L128 BoogieDeclarations]: Found specification of procedure ldv_kref_get [2018-01-25 00:10:56,495 INFO L128 BoogieDeclarations]: Found specification of procedure ldv_kref_put [2018-01-25 00:10:56,495 INFO L128 BoogieDeclarations]: Found specification of procedure ldv_kobject_cleanup [2018-01-25 00:10:56,495 INFO L128 BoogieDeclarations]: Found specification of procedure ldv_kobject_release [2018-01-25 00:10:56,495 INFO L128 BoogieDeclarations]: Found specification of procedure ldv_kobject_put [2018-01-25 00:10:56,496 INFO L128 BoogieDeclarations]: Found specification of procedure ldv_kobject_get [2018-01-25 00:10:56,496 INFO L128 BoogieDeclarations]: Found specification of procedure ldv_kobject_init_internal [2018-01-25 00:10:56,496 INFO L128 BoogieDeclarations]: Found specification of procedure ldv_kobject_init [2018-01-25 00:10:56,496 INFO L128 BoogieDeclarations]: Found specification of procedure ldv_kobject_create [2018-01-25 00:10:56,496 INFO L128 BoogieDeclarations]: Found specification of procedure entry_point [2018-01-25 00:10:56,496 INFO L128 BoogieDeclarations]: Found specification of procedure main [2018-01-25 00:10:56,496 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-01-25 00:10:56,496 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-01-25 00:10:56,753 WARN L455 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2018-01-25 00:10:56,917 INFO L257 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-01-25 00:10:56,918 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.01 12:10:56 BoogieIcfgContainer [2018-01-25 00:10:56,918 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-01-25 00:10:56,919 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-01-25 00:10:56,919 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-01-25 00:10:56,921 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-01-25 00:10:56,922 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.01 12:10:56" (1/3) ... [2018-01-25 00:10:56,923 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6b80a28d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.01 12:10:56, skipping insertion in model container [2018-01-25 00:10:56,923 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.01 12:10:56" (2/3) ... [2018-01-25 00:10:56,923 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6b80a28d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.01 12:10:56, skipping insertion in model container [2018-01-25 00:10:56,924 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.01 12:10:56" (3/3) ... [2018-01-25 00:10:56,925 INFO L105 eAbstractionObserver]: Analyzing ICFG memleaks_test22_2_true-valid-memsafety_true-termination.i [2018-01-25 00:10:56,934 INFO L130 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-01-25 00:10:56,943 INFO L142 ceAbstractionStarter]: Appying trace abstraction to program that has 23 error locations. [2018-01-25 00:10:56,994 INFO L322 AbstractCegarLoop]: Interprodecural is true [2018-01-25 00:10:56,994 INFO L323 AbstractCegarLoop]: Hoare is true [2018-01-25 00:10:56,995 INFO L324 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-01-25 00:10:56,995 INFO L325 AbstractCegarLoop]: Backedges is TWOTRACK [2018-01-25 00:10:56,995 INFO L326 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-01-25 00:10:56,995 INFO L327 AbstractCegarLoop]: Difference is false [2018-01-25 00:10:56,995 INFO L328 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-01-25 00:10:56,995 INFO L333 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-01-25 00:10:56,996 INFO L87 2NestedWordAutomaton]: Mode: main mode - execution starts in main procedure [2018-01-25 00:10:57,020 INFO L276 IsEmpty]: Start isEmpty. Operand 143 states. [2018-01-25 00:10:57,027 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2018-01-25 00:10:57,027 INFO L314 BasicCegarLoop]: Found error trace [2018-01-25 00:10:57,029 INFO L322 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-25 00:10:57,029 INFO L371 AbstractCegarLoop]: === Iteration 1 === [ldv_kref_initErr0RequiresViolation, ldv_kref_initErr1RequiresViolation, ldv_kobject_createErr0RequiresViolation, ldv_kobject_createErr1RequiresViolation, ldv_atomic_sub_returnErr1RequiresViolation, ldv_atomic_sub_returnErr0RequiresViolation, ldv_atomic_sub_returnErr3RequiresViolation, ldv_atomic_sub_returnErr2RequiresViolation, ldv_atomic_add_returnErr0RequiresViolation, ldv_atomic_add_returnErr1RequiresViolation, ldv_atomic_add_returnErr2RequiresViolation, ldv_atomic_add_returnErr3RequiresViolation, ldv_kobject_cleanupErr4RequiresViolation, ldv_kobject_cleanupErr2RequiresViolation, ldv_kobject_cleanupErr5RequiresViolation, ldv_kobject_cleanupErr3RequiresViolation, ldv_kobject_cleanupErr0RequiresViolation, ldv_kobject_cleanupErr1RequiresViolation, mainErr0EnsuresViolation, LDV_INIT_LIST_HEADErr1RequiresViolation, LDV_INIT_LIST_HEADErr3RequiresViolation, LDV_INIT_LIST_HEADErr2RequiresViolation, LDV_INIT_LIST_HEADErr0RequiresViolation]=== [2018-01-25 00:10:57,034 INFO L82 PathProgramCache]: Analyzing trace with hash -998986606, now seen corresponding path program 1 times [2018-01-25 00:10:57,037 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-25 00:10:57,102 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-25 00:10:57,102 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-25 00:10:57,103 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-25 00:10:57,103 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-25 00:10:57,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-25 00:10:57,167 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-25 00:10:57,349 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-25 00:10:57,351 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-25 00:10:57,352 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-01-25 00:10:57,352 INFO L252 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-01-25 00:10:57,355 INFO L409 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-01-25 00:10:57,368 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-01-25 00:10:57,368 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-01-25 00:10:57,370 INFO L87 Difference]: Start difference. First operand 143 states. Second operand 5 states. [2018-01-25 00:10:57,432 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-25 00:10:57,432 INFO L93 Difference]: Finished difference Result 274 states and 291 transitions. [2018-01-25 00:10:57,432 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-01-25 00:10:57,433 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 17 [2018-01-25 00:10:57,434 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-25 00:10:57,447 INFO L225 Difference]: With dead ends: 274 [2018-01-25 00:10:57,447 INFO L226 Difference]: Without dead ends: 146 [2018-01-25 00:10:57,452 INFO L525 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-01-25 00:10:57,466 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 146 states. [2018-01-25 00:10:57,493 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 146 to 144. [2018-01-25 00:10:57,494 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 144 states. [2018-01-25 00:10:57,498 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 144 states to 144 states and 153 transitions. [2018-01-25 00:10:57,500 INFO L78 Accepts]: Start accepts. Automaton has 144 states and 153 transitions. Word has length 17 [2018-01-25 00:10:57,500 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-25 00:10:57,500 INFO L432 AbstractCegarLoop]: Abstraction has 144 states and 153 transitions. [2018-01-25 00:10:57,500 INFO L433 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-01-25 00:10:57,500 INFO L276 IsEmpty]: Start isEmpty. Operand 144 states and 153 transitions. [2018-01-25 00:10:57,501 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2018-01-25 00:10:57,501 INFO L314 BasicCegarLoop]: Found error trace [2018-01-25 00:10:57,502 INFO L322 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-25 00:10:57,502 INFO L371 AbstractCegarLoop]: === Iteration 2 === [ldv_kref_initErr0RequiresViolation, ldv_kref_initErr1RequiresViolation, ldv_kobject_createErr0RequiresViolation, ldv_kobject_createErr1RequiresViolation, ldv_atomic_sub_returnErr1RequiresViolation, ldv_atomic_sub_returnErr0RequiresViolation, ldv_atomic_sub_returnErr3RequiresViolation, ldv_atomic_sub_returnErr2RequiresViolation, ldv_atomic_add_returnErr0RequiresViolation, ldv_atomic_add_returnErr1RequiresViolation, ldv_atomic_add_returnErr2RequiresViolation, ldv_atomic_add_returnErr3RequiresViolation, ldv_kobject_cleanupErr4RequiresViolation, ldv_kobject_cleanupErr2RequiresViolation, ldv_kobject_cleanupErr5RequiresViolation, ldv_kobject_cleanupErr3RequiresViolation, ldv_kobject_cleanupErr0RequiresViolation, ldv_kobject_cleanupErr1RequiresViolation, mainErr0EnsuresViolation, LDV_INIT_LIST_HEADErr1RequiresViolation, LDV_INIT_LIST_HEADErr3RequiresViolation, LDV_INIT_LIST_HEADErr2RequiresViolation, LDV_INIT_LIST_HEADErr0RequiresViolation]=== [2018-01-25 00:10:57,502 INFO L82 PathProgramCache]: Analyzing trace with hash -2077747980, now seen corresponding path program 1 times [2018-01-25 00:10:57,502 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-25 00:10:57,504 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-25 00:10:57,504 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-25 00:10:57,505 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-25 00:10:57,505 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-25 00:10:57,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-25 00:10:57,528 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-25 00:10:57,621 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-25 00:10:57,621 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-25 00:10:57,622 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-01-25 00:10:57,622 INFO L252 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-01-25 00:10:57,623 INFO L409 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-01-25 00:10:57,623 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-01-25 00:10:57,624 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-01-25 00:10:57,624 INFO L87 Difference]: Start difference. First operand 144 states and 153 transitions. Second operand 6 states. [2018-01-25 00:10:57,802 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-25 00:10:57,802 INFO L93 Difference]: Finished difference Result 146 states and 155 transitions. [2018-01-25 00:10:57,802 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-01-25 00:10:57,802 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 19 [2018-01-25 00:10:57,802 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-25 00:10:57,804 INFO L225 Difference]: With dead ends: 146 [2018-01-25 00:10:57,804 INFO L226 Difference]: Without dead ends: 145 [2018-01-25 00:10:57,805 INFO L525 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2018-01-25 00:10:57,805 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 145 states. [2018-01-25 00:10:57,814 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 145 to 143. [2018-01-25 00:10:57,814 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 143 states. [2018-01-25 00:10:57,816 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 143 states to 143 states and 152 transitions. [2018-01-25 00:10:57,816 INFO L78 Accepts]: Start accepts. Automaton has 143 states and 152 transitions. Word has length 19 [2018-01-25 00:10:57,816 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-25 00:10:57,816 INFO L432 AbstractCegarLoop]: Abstraction has 143 states and 152 transitions. [2018-01-25 00:10:57,816 INFO L433 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-01-25 00:10:57,816 INFO L276 IsEmpty]: Start isEmpty. Operand 143 states and 152 transitions. [2018-01-25 00:10:57,817 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2018-01-25 00:10:57,817 INFO L314 BasicCegarLoop]: Found error trace [2018-01-25 00:10:57,817 INFO L322 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-25 00:10:57,817 INFO L371 AbstractCegarLoop]: === Iteration 3 === [ldv_kref_initErr0RequiresViolation, ldv_kref_initErr1RequiresViolation, ldv_kobject_createErr0RequiresViolation, ldv_kobject_createErr1RequiresViolation, ldv_atomic_sub_returnErr1RequiresViolation, ldv_atomic_sub_returnErr0RequiresViolation, ldv_atomic_sub_returnErr3RequiresViolation, ldv_atomic_sub_returnErr2RequiresViolation, ldv_atomic_add_returnErr0RequiresViolation, ldv_atomic_add_returnErr1RequiresViolation, ldv_atomic_add_returnErr2RequiresViolation, ldv_atomic_add_returnErr3RequiresViolation, ldv_kobject_cleanupErr4RequiresViolation, ldv_kobject_cleanupErr2RequiresViolation, ldv_kobject_cleanupErr5RequiresViolation, ldv_kobject_cleanupErr3RequiresViolation, ldv_kobject_cleanupErr0RequiresViolation, ldv_kobject_cleanupErr1RequiresViolation, mainErr0EnsuresViolation, LDV_INIT_LIST_HEADErr1RequiresViolation, LDV_INIT_LIST_HEADErr3RequiresViolation, LDV_INIT_LIST_HEADErr2RequiresViolation, LDV_INIT_LIST_HEADErr0RequiresViolation]=== [2018-01-25 00:10:57,817 INFO L82 PathProgramCache]: Analyzing trace with hash -2077747979, now seen corresponding path program 1 times [2018-01-25 00:10:57,817 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-25 00:10:57,819 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-25 00:10:57,819 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-25 00:10:57,819 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-25 00:10:57,820 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-25 00:10:57,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-25 00:10:57,841 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-25 00:10:58,200 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-25 00:10:58,200 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-25 00:10:58,200 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-01-25 00:10:58,200 INFO L252 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-01-25 00:10:58,201 INFO L409 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-01-25 00:10:58,201 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-01-25 00:10:58,201 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-01-25 00:10:58,201 INFO L87 Difference]: Start difference. First operand 143 states and 152 transitions. Second operand 7 states. [2018-01-25 00:10:58,390 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-25 00:10:58,390 INFO L93 Difference]: Finished difference Result 145 states and 154 transitions. [2018-01-25 00:10:58,450 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-01-25 00:10:58,450 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 19 [2018-01-25 00:10:58,451 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-25 00:10:58,453 INFO L225 Difference]: With dead ends: 145 [2018-01-25 00:10:58,453 INFO L226 Difference]: Without dead ends: 144 [2018-01-25 00:10:58,453 INFO L525 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2018-01-25 00:10:58,454 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 144 states. [2018-01-25 00:10:58,466 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 144 to 142. [2018-01-25 00:10:58,466 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 142 states. [2018-01-25 00:10:58,468 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 142 states to 142 states and 151 transitions. [2018-01-25 00:10:58,468 INFO L78 Accepts]: Start accepts. Automaton has 142 states and 151 transitions. Word has length 19 [2018-01-25 00:10:58,469 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-25 00:10:58,469 INFO L432 AbstractCegarLoop]: Abstraction has 142 states and 151 transitions. [2018-01-25 00:10:58,469 INFO L433 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-01-25 00:10:58,469 INFO L276 IsEmpty]: Start isEmpty. Operand 142 states and 151 transitions. [2018-01-25 00:10:58,470 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2018-01-25 00:10:58,470 INFO L314 BasicCegarLoop]: Found error trace [2018-01-25 00:10:58,471 INFO L322 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] [2018-01-25 00:10:58,471 INFO L371 AbstractCegarLoop]: === Iteration 4 === [ldv_kref_initErr0RequiresViolation, ldv_kref_initErr1RequiresViolation, ldv_kobject_createErr0RequiresViolation, ldv_kobject_createErr1RequiresViolation, ldv_atomic_sub_returnErr1RequiresViolation, ldv_atomic_sub_returnErr0RequiresViolation, ldv_atomic_sub_returnErr3RequiresViolation, ldv_atomic_sub_returnErr2RequiresViolation, ldv_atomic_add_returnErr0RequiresViolation, ldv_atomic_add_returnErr1RequiresViolation, ldv_atomic_add_returnErr2RequiresViolation, ldv_atomic_add_returnErr3RequiresViolation, ldv_kobject_cleanupErr4RequiresViolation, ldv_kobject_cleanupErr2RequiresViolation, ldv_kobject_cleanupErr5RequiresViolation, ldv_kobject_cleanupErr3RequiresViolation, ldv_kobject_cleanupErr0RequiresViolation, ldv_kobject_cleanupErr1RequiresViolation, mainErr0EnsuresViolation, LDV_INIT_LIST_HEADErr1RequiresViolation, LDV_INIT_LIST_HEADErr3RequiresViolation, LDV_INIT_LIST_HEADErr2RequiresViolation, LDV_INIT_LIST_HEADErr0RequiresViolation]=== [2018-01-25 00:10:58,471 INFO L82 PathProgramCache]: Analyzing trace with hash -471802203, now seen corresponding path program 1 times [2018-01-25 00:10:58,471 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-25 00:10:58,473 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-25 00:10:58,473 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-25 00:10:58,473 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-25 00:10:58,473 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-25 00:10:58,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-25 00:10:58,491 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-25 00:10:58,568 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-25 00:10:58,568 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-25 00:10:58,569 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-01-25 00:10:58,569 INFO L252 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-01-25 00:10:58,569 INFO L409 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-01-25 00:10:58,569 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-01-25 00:10:58,569 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-01-25 00:10:58,570 INFO L87 Difference]: Start difference. First operand 142 states and 151 transitions. Second operand 7 states. [2018-01-25 00:10:58,655 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-25 00:10:58,655 INFO L93 Difference]: Finished difference Result 238 states and 253 transitions. [2018-01-25 00:10:58,656 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-01-25 00:10:58,656 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 27 [2018-01-25 00:10:58,656 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-25 00:10:58,658 INFO L225 Difference]: With dead ends: 238 [2018-01-25 00:10:58,658 INFO L226 Difference]: Without dead ends: 159 [2018-01-25 00:10:58,660 INFO L525 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2018-01-25 00:10:58,660 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 159 states. [2018-01-25 00:10:58,675 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 159 to 151. [2018-01-25 00:10:58,676 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 151 states. [2018-01-25 00:10:58,677 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 151 states to 151 states and 160 transitions. [2018-01-25 00:10:58,678 INFO L78 Accepts]: Start accepts. Automaton has 151 states and 160 transitions. Word has length 27 [2018-01-25 00:10:58,678 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-25 00:10:58,678 INFO L432 AbstractCegarLoop]: Abstraction has 151 states and 160 transitions. [2018-01-25 00:10:58,679 INFO L433 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-01-25 00:10:58,679 INFO L276 IsEmpty]: Start isEmpty. Operand 151 states and 160 transitions. [2018-01-25 00:10:58,680 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2018-01-25 00:10:58,680 INFO L314 BasicCegarLoop]: Found error trace [2018-01-25 00:10:58,680 INFO L322 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, 1, 1, 1, 1] [2018-01-25 00:10:58,681 INFO L371 AbstractCegarLoop]: === Iteration 5 === [ldv_kref_initErr0RequiresViolation, ldv_kref_initErr1RequiresViolation, ldv_kobject_createErr0RequiresViolation, ldv_kobject_createErr1RequiresViolation, ldv_atomic_sub_returnErr1RequiresViolation, ldv_atomic_sub_returnErr0RequiresViolation, ldv_atomic_sub_returnErr3RequiresViolation, ldv_atomic_sub_returnErr2RequiresViolation, ldv_atomic_add_returnErr0RequiresViolation, ldv_atomic_add_returnErr1RequiresViolation, ldv_atomic_add_returnErr2RequiresViolation, ldv_atomic_add_returnErr3RequiresViolation, ldv_kobject_cleanupErr4RequiresViolation, ldv_kobject_cleanupErr2RequiresViolation, ldv_kobject_cleanupErr5RequiresViolation, ldv_kobject_cleanupErr3RequiresViolation, ldv_kobject_cleanupErr0RequiresViolation, ldv_kobject_cleanupErr1RequiresViolation, mainErr0EnsuresViolation, LDV_INIT_LIST_HEADErr1RequiresViolation, LDV_INIT_LIST_HEADErr3RequiresViolation, LDV_INIT_LIST_HEADErr2RequiresViolation, LDV_INIT_LIST_HEADErr0RequiresViolation]=== [2018-01-25 00:10:58,681 INFO L82 PathProgramCache]: Analyzing trace with hash 131109242, now seen corresponding path program 1 times [2018-01-25 00:10:58,681 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-25 00:10:58,682 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-25 00:10:58,683 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-25 00:10:58,683 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-25 00:10:58,683 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-25 00:10:58,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-25 00:10:58,702 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-25 00:10:58,787 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-25 00:10:58,788 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-25 00:10:58,788 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2018-01-25 00:10:58,788 INFO L252 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-01-25 00:10:58,788 INFO L409 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-01-25 00:10:58,789 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-01-25 00:10:58,789 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2018-01-25 00:10:58,789 INFO L87 Difference]: Start difference. First operand 151 states and 160 transitions. Second operand 10 states. [2018-01-25 00:10:59,012 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-25 00:10:59,012 INFO L93 Difference]: Finished difference Result 151 states and 160 transitions. [2018-01-25 00:10:59,012 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-01-25 00:10:59,013 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 34 [2018-01-25 00:10:59,013 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-25 00:10:59,014 INFO L225 Difference]: With dead ends: 151 [2018-01-25 00:10:59,015 INFO L226 Difference]: Without dead ends: 150 [2018-01-25 00:10:59,015 INFO L525 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=127, Unknown=0, NotChecked=0, Total=156 [2018-01-25 00:10:59,015 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 150 states. [2018-01-25 00:10:59,025 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 150 to 150. [2018-01-25 00:10:59,025 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 150 states. [2018-01-25 00:10:59,027 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 150 states to 150 states and 159 transitions. [2018-01-25 00:10:59,027 INFO L78 Accepts]: Start accepts. Automaton has 150 states and 159 transitions. Word has length 34 [2018-01-25 00:10:59,028 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-25 00:10:59,028 INFO L432 AbstractCegarLoop]: Abstraction has 150 states and 159 transitions. [2018-01-25 00:10:59,028 INFO L433 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-01-25 00:10:59,028 INFO L276 IsEmpty]: Start isEmpty. Operand 150 states and 159 transitions. [2018-01-25 00:10:59,029 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2018-01-25 00:10:59,029 INFO L314 BasicCegarLoop]: Found error trace [2018-01-25 00:10:59,029 INFO L322 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, 1, 1, 1, 1] [2018-01-25 00:10:59,030 INFO L371 AbstractCegarLoop]: === Iteration 6 === [ldv_kref_initErr0RequiresViolation, ldv_kref_initErr1RequiresViolation, ldv_kobject_createErr0RequiresViolation, ldv_kobject_createErr1RequiresViolation, ldv_atomic_sub_returnErr1RequiresViolation, ldv_atomic_sub_returnErr0RequiresViolation, ldv_atomic_sub_returnErr3RequiresViolation, ldv_atomic_sub_returnErr2RequiresViolation, ldv_atomic_add_returnErr0RequiresViolation, ldv_atomic_add_returnErr1RequiresViolation, ldv_atomic_add_returnErr2RequiresViolation, ldv_atomic_add_returnErr3RequiresViolation, ldv_kobject_cleanupErr4RequiresViolation, ldv_kobject_cleanupErr2RequiresViolation, ldv_kobject_cleanupErr5RequiresViolation, ldv_kobject_cleanupErr3RequiresViolation, ldv_kobject_cleanupErr0RequiresViolation, ldv_kobject_cleanupErr1RequiresViolation, mainErr0EnsuresViolation, LDV_INIT_LIST_HEADErr1RequiresViolation, LDV_INIT_LIST_HEADErr3RequiresViolation, LDV_INIT_LIST_HEADErr2RequiresViolation, LDV_INIT_LIST_HEADErr0RequiresViolation]=== [2018-01-25 00:10:59,030 INFO L82 PathProgramCache]: Analyzing trace with hash 131109243, now seen corresponding path program 1 times [2018-01-25 00:10:59,030 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-25 00:10:59,031 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-25 00:10:59,031 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-25 00:10:59,031 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-25 00:10:59,031 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-25 00:10:59,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-25 00:10:59,048 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-25 00:10:59,094 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-25 00:10:59,095 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-25 00:10:59,095 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-01-25 00:10:59,095 INFO L252 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-01-25 00:10:59,096 INFO L409 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-01-25 00:10:59,096 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-01-25 00:10:59,096 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-01-25 00:10:59,096 INFO L87 Difference]: Start difference. First operand 150 states and 159 transitions. Second operand 4 states. [2018-01-25 00:10:59,130 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-25 00:10:59,130 INFO L93 Difference]: Finished difference Result 266 states and 282 transitions. [2018-01-25 00:10:59,131 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-01-25 00:10:59,131 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 34 [2018-01-25 00:10:59,131 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-25 00:10:59,132 INFO L225 Difference]: With dead ends: 266 [2018-01-25 00:10:59,133 INFO L226 Difference]: Without dead ends: 151 [2018-01-25 00:10:59,134 INFO L525 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-01-25 00:10:59,134 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 151 states. [2018-01-25 00:10:59,144 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 151 to 151. [2018-01-25 00:10:59,144 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 151 states. [2018-01-25 00:10:59,146 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 151 states to 151 states and 160 transitions. [2018-01-25 00:10:59,146 INFO L78 Accepts]: Start accepts. Automaton has 151 states and 160 transitions. Word has length 34 [2018-01-25 00:10:59,146 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-25 00:10:59,146 INFO L432 AbstractCegarLoop]: Abstraction has 151 states and 160 transitions. [2018-01-25 00:10:59,147 INFO L433 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-01-25 00:10:59,147 INFO L276 IsEmpty]: Start isEmpty. Operand 151 states and 160 transitions. [2018-01-25 00:10:59,148 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2018-01-25 00:10:59,148 INFO L314 BasicCegarLoop]: Found error trace [2018-01-25 00:10:59,148 INFO L322 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, 1, 1, 1, 1, 1] [2018-01-25 00:10:59,148 INFO L371 AbstractCegarLoop]: === Iteration 7 === [ldv_kref_initErr0RequiresViolation, ldv_kref_initErr1RequiresViolation, ldv_kobject_createErr0RequiresViolation, ldv_kobject_createErr1RequiresViolation, ldv_atomic_sub_returnErr1RequiresViolation, ldv_atomic_sub_returnErr0RequiresViolation, ldv_atomic_sub_returnErr3RequiresViolation, ldv_atomic_sub_returnErr2RequiresViolation, ldv_atomic_add_returnErr0RequiresViolation, ldv_atomic_add_returnErr1RequiresViolation, ldv_atomic_add_returnErr2RequiresViolation, ldv_atomic_add_returnErr3RequiresViolation, ldv_kobject_cleanupErr4RequiresViolation, ldv_kobject_cleanupErr2RequiresViolation, ldv_kobject_cleanupErr5RequiresViolation, ldv_kobject_cleanupErr3RequiresViolation, ldv_kobject_cleanupErr0RequiresViolation, ldv_kobject_cleanupErr1RequiresViolation, mainErr0EnsuresViolation, LDV_INIT_LIST_HEADErr1RequiresViolation, LDV_INIT_LIST_HEADErr3RequiresViolation, LDV_INIT_LIST_HEADErr2RequiresViolation, LDV_INIT_LIST_HEADErr0RequiresViolation]=== [2018-01-25 00:10:59,149 INFO L82 PathProgramCache]: Analyzing trace with hash -2110897305, now seen corresponding path program 1 times [2018-01-25 00:10:59,149 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-25 00:10:59,150 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-25 00:10:59,150 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-25 00:10:59,150 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-25 00:10:59,150 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-25 00:10:59,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-25 00:10:59,168 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-25 00:10:59,224 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-25 00:10:59,225 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-01-25 00:10:59,225 INFO L187 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-01-25 00:10:59,225 INFO L199 CegarAbsIntRunner]: Running AI on error trace of length 36 with the following transitions: [2018-01-25 00:10:59,227 INFO L201 CegarAbsIntRunner]: [0], [2], [6], [10], [31], [36], [52], [60], [64], [68], [71], [73], [74], [78], [80], [81], [131], [134], [135], [136], [138], [139], [140], [158], [159], [160], [161], [162], [164], [170], [174], [182], [196], [197], [198] [2018-01-25 00:10:59,274 INFO L147 AbstractInterpreter]: Using domain VPDomain [2018-01-25 00:10:59,274 INFO L101 FixpointEngine]: Starting fixpoint engine with domain VPDomain (maxUnwinding=3, maxParallelStates=2) Received shutdown request... Cannot interrupt operation gracefully because timeout expired. Forcing shutdown