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_mostprecise.epf -i ../../../trunk/examples/svcomp/ldv-memsafety/memleaks_test22_3_true-valid-memsafety_true-termination.i -------------------------------------------------------------------------------- This is Ultimate 0.1.23-6b94a2f [2018-01-24 20:47:46,765 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-01-24 20:47:46,767 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-01-24 20:47:46,779 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-01-24 20:47:46,779 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-01-24 20:47:46,780 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-01-24 20:47:46,781 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-01-24 20:47:46,783 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-01-24 20:47:46,785 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-01-24 20:47:46,786 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-01-24 20:47:46,787 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-01-24 20:47:46,787 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-01-24 20:47:46,788 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-01-24 20:47:46,788 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-01-24 20:47:46,789 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-01-24 20:47:46,791 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-01-24 20:47:46,793 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-01-24 20:47:46,795 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-01-24 20:47:46,797 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-01-24 20:47:46,798 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-01-24 20:47:46,800 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-01-24 20:47:46,801 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-01-24 20:47:46,801 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-01-24 20:47:46,802 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-01-24 20:47:46,803 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-01-24 20:47:46,804 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-01-24 20:47:46,804 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-01-24 20:47:46,805 INFO L177 SettingsManager]: PEA to Boogie provides no preferences, ignoring... [2018-01-24 20:47:46,805 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-01-24 20:47:46,805 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-01-24 20:47:46,806 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-01-24 20:47:46,806 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_mostprecise.epf [2018-01-24 20:47:46,816 INFO L110 SettingsManager]: Loading preferences was successful [2018-01-24 20:47:46,816 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-01-24 20:47:46,817 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-01-24 20:47:46,818 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-01-24 20:47:46,818 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-01-24 20:47:46,818 INFO L133 SettingsManager]: * Weq Fattening=true [2018-01-24 20:47:46,818 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=VPDomain [2018-01-24 20:47:46,818 INFO L133 SettingsManager]: * Precise comparison operator=true [2018-01-24 20:47:46,818 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-01-24 20:47:46,819 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-01-24 20:47:46,819 INFO L133 SettingsManager]: * sizeof long=4 [2018-01-24 20:47:46,820 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-01-24 20:47:46,820 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-01-24 20:47:46,820 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-01-24 20:47:46,820 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-01-24 20:47:46,820 INFO L133 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2018-01-24 20:47:46,821 INFO L133 SettingsManager]: * Bitprecise bitfields=true [2018-01-24 20:47:46,821 INFO L133 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2018-01-24 20:47:46,821 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-01-24 20:47:46,821 INFO L133 SettingsManager]: * sizeof long double=12 [2018-01-24 20:47:46,821 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-01-24 20:47:46,822 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-01-24 20:47:46,822 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-01-24 20:47:46,822 INFO L133 SettingsManager]: * Add additional assume for each assert=false [2018-01-24 20:47:46,822 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-01-24 20:47:46,822 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-01-24 20:47:46,823 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-01-24 20:47:46,823 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-01-24 20:47:46,823 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-01-24 20:47:46,823 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-01-24 20:47:46,823 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-01-24 20:47:46,823 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-01-24 20:47:46,824 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-01-24 20:47:46,824 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-01-24 20:47:46,824 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-01-24 20:47:46,825 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-01-24 20:47:46,825 INFO L133 SettingsManager]: * TransformationType=HEAP_SEPARATOR [2018-01-24 20:47:46,860 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-01-24 20:47:46,873 INFO L266 ainManager$Toolchain]: [Toolchain 1]: Parser(s) successfully initialized [2018-01-24 20:47:46,877 INFO L222 ainManager$Toolchain]: [Toolchain 1]: Toolchain data selected. [2018-01-24 20:47:46,878 INFO L271 PluginConnector]: Initializing CDTParser... [2018-01-24 20:47:46,879 INFO L276 PluginConnector]: CDTParser initialized [2018-01-24 20:47:46,880 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-memsafety/memleaks_test22_3_true-valid-memsafety_true-termination.i [2018-01-24 20:47:47,067 INFO L304 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-01-24 20:47:47,074 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-01-24 20:47:47,075 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-01-24 20:47:47,075 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-01-24 20:47:47,081 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-01-24 20:47:47,082 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.01 08:47:47" (1/1) ... [2018-01-24 20:47:47,085 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5c336041 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 08:47:47, skipping insertion in model container [2018-01-24 20:47:47,085 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.01 08:47:47" (1/1) ... [2018-01-24 20:47:47,103 INFO L153 Dispatcher]: Using SV-COMP mode [2018-01-24 20:47:47,156 INFO L153 Dispatcher]: Using SV-COMP mode [2018-01-24 20:47:47,273 INFO L450 PostProcessor]: Settings: Checked method=main [2018-01-24 20:47:47,298 INFO L450 PostProcessor]: Settings: Checked method=main [2018-01-24 20:47:47,311 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 08:47:47 WrapperNode [2018-01-24 20:47:47,311 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-01-24 20:47:47,311 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-01-24 20:47:47,311 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-01-24 20:47:47,312 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-01-24 20:47:47,322 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 08:47:47" (1/1) ... [2018-01-24 20:47:47,322 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 08:47:47" (1/1) ... [2018-01-24 20:47:47,332 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 08:47:47" (1/1) ... [2018-01-24 20:47:47,333 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 08:47:47" (1/1) ... [2018-01-24 20:47:47,338 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 08:47:47" (1/1) ... [2018-01-24 20:47:47,341 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 08:47:47" (1/1) ... [2018-01-24 20:47:47,343 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 08:47:47" (1/1) ... [2018-01-24 20:47:47,346 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-01-24 20:47:47,346 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-01-24 20:47:47,347 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-01-24 20:47:47,347 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-01-24 20:47:47,347 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 08:47:47" (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 [2018-01-24 20:47:47,394 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-01-24 20:47:47,394 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-01-24 20:47:47,394 INFO L136 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2018-01-24 20:47:47,394 INFO L136 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2018-01-24 20:47:47,395 INFO L136 BoogieDeclarations]: Found implementation of procedure LDV_INIT_LIST_HEAD [2018-01-24 20:47:47,395 INFO L136 BoogieDeclarations]: Found implementation of procedure ldv_atomic_add_return [2018-01-24 20:47:47,395 INFO L136 BoogieDeclarations]: Found implementation of procedure ldv_atomic_sub_return [2018-01-24 20:47:47,395 INFO L136 BoogieDeclarations]: Found implementation of procedure ldv_kref_sub [2018-01-24 20:47:47,395 INFO L136 BoogieDeclarations]: Found implementation of procedure ldv_kref_init [2018-01-24 20:47:47,395 INFO L136 BoogieDeclarations]: Found implementation of procedure ldv_kref_get [2018-01-24 20:47:47,395 INFO L136 BoogieDeclarations]: Found implementation of procedure ldv_kref_put [2018-01-24 20:47:47,395 INFO L136 BoogieDeclarations]: Found implementation of procedure ldv_kobject_cleanup [2018-01-24 20:47:47,395 INFO L136 BoogieDeclarations]: Found implementation of procedure ldv_kobject_release [2018-01-24 20:47:47,395 INFO L136 BoogieDeclarations]: Found implementation of procedure ldv_kobject_put [2018-01-24 20:47:47,396 INFO L136 BoogieDeclarations]: Found implementation of procedure ldv_kobject_get [2018-01-24 20:47:47,396 INFO L136 BoogieDeclarations]: Found implementation of procedure ldv_kobject_init_internal [2018-01-24 20:47:47,396 INFO L136 BoogieDeclarations]: Found implementation of procedure ldv_kobject_init [2018-01-24 20:47:47,396 INFO L136 BoogieDeclarations]: Found implementation of procedure ldv_kobject_create [2018-01-24 20:47:47,396 INFO L136 BoogieDeclarations]: Found implementation of procedure f_22_get [2018-01-24 20:47:47,396 INFO L136 BoogieDeclarations]: Found implementation of procedure f_22_put [2018-01-24 20:47:47,396 INFO L136 BoogieDeclarations]: Found implementation of procedure entry_point [2018-01-24 20:47:47,396 INFO L136 BoogieDeclarations]: Found implementation of procedure main [2018-01-24 20:47:47,396 INFO L128 BoogieDeclarations]: Found specification of procedure write~int [2018-01-24 20:47:47,397 INFO L128 BoogieDeclarations]: Found specification of procedure read~int [2018-01-24 20:47:47,397 INFO L128 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2018-01-24 20:47:47,397 INFO L128 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2018-01-24 20:47:47,397 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.free [2018-01-24 20:47:47,397 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-01-24 20:47:47,397 INFO L128 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-01-24 20:47:47,397 INFO L128 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2018-01-24 20:47:47,397 INFO L136 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2018-01-24 20:47:47,397 INFO L128 BoogieDeclarations]: Found specification of procedure malloc [2018-01-24 20:47:47,397 INFO L128 BoogieDeclarations]: Found specification of procedure free [2018-01-24 20:47:47,397 INFO L128 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2018-01-24 20:47:47,398 INFO L128 BoogieDeclarations]: Found specification of procedure memset [2018-01-24 20:47:47,398 INFO L128 BoogieDeclarations]: Found specification of procedure ldv_malloc [2018-01-24 20:47:47,398 INFO L128 BoogieDeclarations]: Found specification of procedure LDV_INIT_LIST_HEAD [2018-01-24 20:47:47,398 INFO L128 BoogieDeclarations]: Found specification of procedure ldv_atomic_add_return [2018-01-24 20:47:47,398 INFO L128 BoogieDeclarations]: Found specification of procedure ldv_atomic_sub_return [2018-01-24 20:47:47,398 INFO L128 BoogieDeclarations]: Found specification of procedure ldv_kref_sub [2018-01-24 20:47:47,398 INFO L128 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2018-01-24 20:47:47,398 INFO L128 BoogieDeclarations]: Found specification of procedure ldv_kref_init [2018-01-24 20:47:47,398 INFO L128 BoogieDeclarations]: Found specification of procedure ldv_kref_get [2018-01-24 20:47:47,398 INFO L128 BoogieDeclarations]: Found specification of procedure ldv_kref_put [2018-01-24 20:47:47,398 INFO L128 BoogieDeclarations]: Found specification of procedure ldv_kobject_cleanup [2018-01-24 20:47:47,399 INFO L128 BoogieDeclarations]: Found specification of procedure ldv_kobject_release [2018-01-24 20:47:47,399 INFO L128 BoogieDeclarations]: Found specification of procedure ldv_kobject_put [2018-01-24 20:47:47,399 INFO L128 BoogieDeclarations]: Found specification of procedure ldv_kobject_get [2018-01-24 20:47:47,399 INFO L128 BoogieDeclarations]: Found specification of procedure ldv_kobject_init_internal [2018-01-24 20:47:47,399 INFO L128 BoogieDeclarations]: Found specification of procedure ldv_kobject_init [2018-01-24 20:47:47,399 INFO L128 BoogieDeclarations]: Found specification of procedure ldv_kobject_create [2018-01-24 20:47:47,399 INFO L128 BoogieDeclarations]: Found specification of procedure f_22_get [2018-01-24 20:47:47,400 INFO L128 BoogieDeclarations]: Found specification of procedure f_22_put [2018-01-24 20:47:47,400 INFO L128 BoogieDeclarations]: Found specification of procedure entry_point [2018-01-24 20:47:47,400 INFO L128 BoogieDeclarations]: Found specification of procedure main [2018-01-24 20:47:47,400 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-01-24 20:47:47,400 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-01-24 20:47:47,639 WARN L455 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2018-01-24 20:47:47,831 INFO L257 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-01-24 20:47:47,831 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.01 08:47:47 BoogieIcfgContainer [2018-01-24 20:47:47,832 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-01-24 20:47:47,833 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-01-24 20:47:47,833 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-01-24 20:47:47,835 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-01-24 20:47:47,836 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.01 08:47:47" (1/3) ... [2018-01-24 20:47:47,837 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@70f886d6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.01 08:47:47, skipping insertion in model container [2018-01-24 20:47:47,838 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 08:47:47" (2/3) ... [2018-01-24 20:47:47,838 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@70f886d6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.01 08:47:47, skipping insertion in model container [2018-01-24 20:47:47,838 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.01 08:47:47" (3/3) ... [2018-01-24 20:47:47,840 INFO L105 eAbstractionObserver]: Analyzing ICFG memleaks_test22_3_true-valid-memsafety_true-termination.i [2018-01-24 20:47:47,847 INFO L130 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-01-24 20:47:47,855 INFO L142 ceAbstractionStarter]: Appying trace abstraction to program that has 23 error locations. [2018-01-24 20:47:47,895 INFO L322 AbstractCegarLoop]: Interprodecural is true [2018-01-24 20:47:47,895 INFO L323 AbstractCegarLoop]: Hoare is true [2018-01-24 20:47:47,896 INFO L324 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-01-24 20:47:47,896 INFO L325 AbstractCegarLoop]: Backedges is TWOTRACK [2018-01-24 20:47:47,896 INFO L326 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-01-24 20:47:47,896 INFO L327 AbstractCegarLoop]: Difference is false [2018-01-24 20:47:47,896 INFO L328 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-01-24 20:47:47,896 INFO L333 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-01-24 20:47:47,897 INFO L87 2NestedWordAutomaton]: Mode: main mode - execution starts in main procedure [2018-01-24 20:47:47,917 INFO L276 IsEmpty]: Start isEmpty. Operand 151 states. [2018-01-24 20:47:47,923 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2018-01-24 20:47:47,923 INFO L314 BasicCegarLoop]: Found error trace [2018-01-24 20:47:47,924 INFO L322 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-24 20:47:47,924 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]=== [2018-01-24 20:47:47,928 INFO L82 PathProgramCache]: Analyzing trace with hash 1245228870, now seen corresponding path program 1 times [2018-01-24 20:47:47,930 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-24 20:47:47,977 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 20:47:47,977 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-24 20:47:47,977 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 20:47:47,978 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-24 20:47:48,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-24 20:47:48,030 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-24 20:47:48,268 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-24 20:47:48,271 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-24 20:47:48,271 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-01-24 20:47:48,271 INFO L252 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-01-24 20:47:48,274 INFO L409 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-01-24 20:47:48,284 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-01-24 20:47:48,284 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-01-24 20:47:48,286 INFO L87 Difference]: Start difference. First operand 151 states. Second operand 5 states. [2018-01-24 20:47:48,351 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-24 20:47:48,351 INFO L93 Difference]: Finished difference Result 290 states and 307 transitions. [2018-01-24 20:47:48,351 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-01-24 20:47:48,352 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 17 [2018-01-24 20:47:48,353 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-24 20:47:48,366 INFO L225 Difference]: With dead ends: 290 [2018-01-24 20:47:48,366 INFO L226 Difference]: Without dead ends: 154 [2018-01-24 20:47:48,370 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 [2018-01-24 20:47:48,384 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 154 states. [2018-01-24 20:47:48,412 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 154 to 152. [2018-01-24 20:47:48,413 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 152 states. [2018-01-24 20:47:48,417 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 152 states to 152 states and 161 transitions. [2018-01-24 20:47:48,418 INFO L78 Accepts]: Start accepts. Automaton has 152 states and 161 transitions. Word has length 17 [2018-01-24 20:47:48,419 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-24 20:47:48,419 INFO L432 AbstractCegarLoop]: Abstraction has 152 states and 161 transitions. [2018-01-24 20:47:48,419 INFO L433 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-01-24 20:47:48,419 INFO L276 IsEmpty]: Start isEmpty. Operand 152 states and 161 transitions. [2018-01-24 20:47:48,420 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2018-01-24 20:47:48,420 INFO L314 BasicCegarLoop]: Found error trace [2018-01-24 20:47:48,420 INFO L322 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-24 20:47:48,420 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]=== [2018-01-24 20:47:48,420 INFO L82 PathProgramCache]: Analyzing trace with hash -1572748952, now seen corresponding path program 1 times [2018-01-24 20:47:48,421 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-24 20:47:48,422 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 20:47:48,422 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-24 20:47:48,422 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 20:47:48,423 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-24 20:47:48,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-24 20:47:48,446 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-24 20:47:48,516 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-24 20:47:48,516 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-24 20:47:48,517 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-01-24 20:47:48,517 INFO L252 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-01-24 20:47:48,518 INFO L409 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-01-24 20:47:48,519 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-01-24 20:47:48,519 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-01-24 20:47:48,519 INFO L87 Difference]: Start difference. First operand 152 states and 161 transitions. Second operand 6 states. [2018-01-24 20:47:48,719 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-24 20:47:48,720 INFO L93 Difference]: Finished difference Result 154 states and 163 transitions. [2018-01-24 20:47:48,720 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-01-24 20:47:48,720 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 19 [2018-01-24 20:47:48,721 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-24 20:47:48,723 INFO L225 Difference]: With dead ends: 154 [2018-01-24 20:47:48,723 INFO L226 Difference]: Without dead ends: 153 [2018-01-24 20:47:48,724 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 [2018-01-24 20:47:48,725 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 153 states. [2018-01-24 20:47:48,738 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 153 to 151. [2018-01-24 20:47:48,738 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 151 states. [2018-01-24 20:47:48,742 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 151 states to 151 states and 160 transitions. [2018-01-24 20:47:48,742 INFO L78 Accepts]: Start accepts. Automaton has 151 states and 160 transitions. Word has length 19 [2018-01-24 20:47:48,742 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-24 20:47:48,742 INFO L432 AbstractCegarLoop]: Abstraction has 151 states and 160 transitions. [2018-01-24 20:47:48,743 INFO L433 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-01-24 20:47:48,743 INFO L276 IsEmpty]: Start isEmpty. Operand 151 states and 160 transitions. [2018-01-24 20:47:48,743 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2018-01-24 20:47:48,744 INFO L314 BasicCegarLoop]: Found error trace [2018-01-24 20:47:48,744 INFO L322 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-24 20:47:48,744 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]=== [2018-01-24 20:47:48,744 INFO L82 PathProgramCache]: Analyzing trace with hash -1572748951, now seen corresponding path program 1 times [2018-01-24 20:47:48,744 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-24 20:47:48,746 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 20:47:48,746 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-24 20:47:48,746 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 20:47:48,746 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-24 20:47:48,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-24 20:47:48,773 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-24 20:47:49,067 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-24 20:47:49,067 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-24 20:47:49,067 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-01-24 20:47:49,068 INFO L252 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-01-24 20:47:49,068 INFO L409 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-01-24 20:47:49,068 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-01-24 20:47:49,068 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-01-24 20:47:49,069 INFO L87 Difference]: Start difference. First operand 151 states and 160 transitions. Second operand 7 states. [2018-01-24 20:47:49,310 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-24 20:47:49,310 INFO L93 Difference]: Finished difference Result 153 states and 162 transitions. [2018-01-24 20:47:49,411 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-01-24 20:47:49,411 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 19 [2018-01-24 20:47:49,411 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-24 20:47:49,412 INFO L225 Difference]: With dead ends: 153 [2018-01-24 20:47:49,413 INFO L226 Difference]: Without dead ends: 152 [2018-01-24 20:47:49,413 INFO L525 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2018-01-24 20:47:49,413 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 152 states. [2018-01-24 20:47:49,423 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 152 to 150. [2018-01-24 20:47:49,423 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 150 states. [2018-01-24 20:47:49,425 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 150 states to 150 states and 159 transitions. [2018-01-24 20:47:49,425 INFO L78 Accepts]: Start accepts. Automaton has 150 states and 159 transitions. Word has length 19 [2018-01-24 20:47:49,425 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-24 20:47:49,425 INFO L432 AbstractCegarLoop]: Abstraction has 150 states and 159 transitions. [2018-01-24 20:47:49,426 INFO L433 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-01-24 20:47:49,426 INFO L276 IsEmpty]: Start isEmpty. Operand 150 states and 159 transitions. [2018-01-24 20:47:49,427 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2018-01-24 20:47:49,427 INFO L314 BasicCegarLoop]: Found error trace [2018-01-24 20:47:49,427 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] [2018-01-24 20:47:49,427 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]=== [2018-01-24 20:47:49,427 INFO L82 PathProgramCache]: Analyzing trace with hash -336004596, now seen corresponding path program 1 times [2018-01-24 20:47:49,428 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-24 20:47:49,429 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 20:47:49,429 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-24 20:47:49,429 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 20:47:49,430 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-24 20:47:49,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-24 20:47:49,448 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-24 20:47:49,558 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-24 20:47:49,558 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-24 20:47:49,559 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2018-01-24 20:47:49,559 INFO L252 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-01-24 20:47:49,559 INFO L409 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-01-24 20:47:49,559 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-01-24 20:47:49,559 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2018-01-24 20:47:49,560 INFO L87 Difference]: Start difference. First operand 150 states and 159 transitions. Second operand 9 states. [2018-01-24 20:47:49,704 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-24 20:47:49,704 INFO L93 Difference]: Finished difference Result 256 states and 271 transitions. [2018-01-24 20:47:49,706 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-01-24 20:47:49,706 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 29 [2018-01-24 20:47:49,706 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-24 20:47:49,709 INFO L225 Difference]: With dead ends: 256 [2018-01-24 20:47:49,709 INFO L226 Difference]: Without dead ends: 171 [2018-01-24 20:47:49,710 INFO L525 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2018-01-24 20:47:49,710 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 171 states. [2018-01-24 20:47:49,723 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 171 to 164. [2018-01-24 20:47:49,724 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 164 states. [2018-01-24 20:47:49,725 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 164 states to 164 states and 173 transitions. [2018-01-24 20:47:49,725 INFO L78 Accepts]: Start accepts. Automaton has 164 states and 173 transitions. Word has length 29 [2018-01-24 20:47:49,726 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-24 20:47:49,726 INFO L432 AbstractCegarLoop]: Abstraction has 164 states and 173 transitions. [2018-01-24 20:47:49,726 INFO L433 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-01-24 20:47:49,726 INFO L276 IsEmpty]: Start isEmpty. Operand 164 states and 173 transitions. [2018-01-24 20:47:49,727 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2018-01-24 20:47:49,727 INFO L314 BasicCegarLoop]: Found error trace [2018-01-24 20:47:49,727 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] [2018-01-24 20:47:49,728 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]=== [2018-01-24 20:47:49,728 INFO L82 PathProgramCache]: Analyzing trace with hash 610577100, now seen corresponding path program 1 times [2018-01-24 20:47:49,728 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-24 20:47:49,730 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 20:47:49,730 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-24 20:47:49,730 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 20:47:49,730 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-24 20:47:49,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-24 20:47:49,749 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-24 20:47:49,821 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-24 20:47:49,821 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-24 20:47:49,821 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2018-01-24 20:47:49,821 INFO L252 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-01-24 20:47:49,822 INFO L409 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-01-24 20:47:49,822 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-01-24 20:47:49,822 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2018-01-24 20:47:49,823 INFO L87 Difference]: Start difference. First operand 164 states and 173 transitions. Second operand 10 states. [2018-01-24 20:47:50,035 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-24 20:47:50,036 INFO L93 Difference]: Finished difference Result 164 states and 173 transitions. [2018-01-24 20:47:50,036 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-01-24 20:47:50,036 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 34 [2018-01-24 20:47:50,036 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-24 20:47:50,037 INFO L225 Difference]: With dead ends: 164 [2018-01-24 20:47:50,038 INFO L226 Difference]: Without dead ends: 163 [2018-01-24 20:47:50,038 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 [2018-01-24 20:47:50,038 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 163 states. [2018-01-24 20:47:50,049 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 163 to 163. [2018-01-24 20:47:50,049 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 163 states. [2018-01-24 20:47:50,051 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 163 states to 163 states and 172 transitions. [2018-01-24 20:47:50,051 INFO L78 Accepts]: Start accepts. Automaton has 163 states and 172 transitions. Word has length 34 [2018-01-24 20:47:50,051 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-24 20:47:50,052 INFO L432 AbstractCegarLoop]: Abstraction has 163 states and 172 transitions. [2018-01-24 20:47:50,052 INFO L433 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-01-24 20:47:50,052 INFO L276 IsEmpty]: Start isEmpty. Operand 163 states and 172 transitions. [2018-01-24 20:47:50,053 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2018-01-24 20:47:50,053 INFO L314 BasicCegarLoop]: Found error trace [2018-01-24 20:47:50,053 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] [2018-01-24 20:47:50,053 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]=== [2018-01-24 20:47:50,054 INFO L82 PathProgramCache]: Analyzing trace with hash 610577101, now seen corresponding path program 1 times [2018-01-24 20:47:50,054 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-24 20:47:50,055 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 20:47:50,055 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-24 20:47:50,055 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 20:47:50,055 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-24 20:47:50,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-24 20:47:50,073 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-24 20:47:50,107 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-24 20:47:50,107 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-24 20:47:50,107 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-01-24 20:47:50,108 INFO L252 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-01-24 20:47:50,108 INFO L409 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-01-24 20:47:50,108 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-01-24 20:47:50,108 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-01-24 20:47:50,109 INFO L87 Difference]: Start difference. First operand 163 states and 172 transitions. Second operand 4 states. [2018-01-24 20:47:50,133 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-24 20:47:50,133 INFO L93 Difference]: Finished difference Result 287 states and 303 transitions. [2018-01-24 20:47:50,134 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-01-24 20:47:50,134 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 34 [2018-01-24 20:47:50,135 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-24 20:47:50,136 INFO L225 Difference]: With dead ends: 287 [2018-01-24 20:47:50,136 INFO L226 Difference]: Without dead ends: 164 [2018-01-24 20:47:50,137 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 [2018-01-24 20:47:50,138 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 164 states. [2018-01-24 20:47:50,147 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 164 to 164. [2018-01-24 20:47:50,147 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 164 states. [2018-01-24 20:47:50,149 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 164 states to 164 states and 173 transitions. [2018-01-24 20:47:50,149 INFO L78 Accepts]: Start accepts. Automaton has 164 states and 173 transitions. Word has length 34 [2018-01-24 20:47:50,149 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-24 20:47:50,150 INFO L432 AbstractCegarLoop]: Abstraction has 164 states and 173 transitions. [2018-01-24 20:47:50,150 INFO L433 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-01-24 20:47:50,150 INFO L276 IsEmpty]: Start isEmpty. Operand 164 states and 173 transitions. [2018-01-24 20:47:50,151 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2018-01-24 20:47:50,151 INFO L314 BasicCegarLoop]: Found error trace [2018-01-24 20:47:50,151 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] [2018-01-24 20:47:50,151 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]=== [2018-01-24 20:47:50,152 INFO L82 PathProgramCache]: Analyzing trace with hash -838244594, now seen corresponding path program 1 times [2018-01-24 20:47:50,152 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-24 20:47:50,153 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 20:47:50,153 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-24 20:47:50,153 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 20:47:50,153 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-24 20:47:50,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-24 20:47:50,171 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-24 20:47:50,205 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-24 20:47:50,205 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-01-24 20:47:50,205 INFO L187 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-01-24 20:47:50,206 INFO L199 CegarAbsIntRunner]: Running AI on error trace of length 36 with the following transitions: [2018-01-24 20:47:50,208 INFO L201 CegarAbsIntRunner]: [0], [2], [6], [10], [31], [36], [52], [59], [63], [67], [70], [72], [73], [77], [79], [80], [133], [136], [137], [138], [140], [141], [142], [164], [165], [166], [167], [168], [170], [176], [180], [188], [206], [207], [208] [2018-01-24 20:47:50,272 INFO L147 AbstractInterpreter]: Using domain VPDomain [2018-01-24 20:47:50,272 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