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_preciseopt.epf -i ../../../trunk/examples/svcomp/ldv-memsafety/memleaks_test22_3_true-valid-memsafety_true-termination.i -------------------------------------------------------------------------------- This is Ultimate 0.1.23-6b94a2f [2018-01-25 03:37:30,050 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-01-25 03:37:30,052 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-01-25 03:37:30,067 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-01-25 03:37:30,068 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-01-25 03:37:30,069 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-01-25 03:37:30,070 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-01-25 03:37:30,072 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-01-25 03:37:30,074 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-01-25 03:37:30,075 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-01-25 03:37:30,075 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-01-25 03:37:30,075 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-01-25 03:37:30,076 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-01-25 03:37:30,077 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-01-25 03:37:30,078 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-01-25 03:37:30,081 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-01-25 03:37:30,083 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-01-25 03:37:30,085 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-01-25 03:37:30,086 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-01-25 03:37:30,087 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-01-25 03:37:30,090 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-01-25 03:37:30,090 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-01-25 03:37:30,090 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-01-25 03:37:30,091 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-01-25 03:37:30,092 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-01-25 03:37:30,094 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-01-25 03:37:30,094 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-01-25 03:37:30,095 INFO L177 SettingsManager]: PEA to Boogie provides no preferences, ignoring... [2018-01-25 03:37:30,095 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-01-25 03:37:30,095 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-01-25 03:37:30,096 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-01-25 03:37:30,096 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_preciseopt.epf [2018-01-25 03:37:30,106 INFO L110 SettingsManager]: Loading preferences was successful [2018-01-25 03:37:30,106 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-01-25 03:37:30,107 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-01-25 03:37:30,108 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-01-25 03:37:30,108 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-01-25 03:37:30,108 INFO L133 SettingsManager]: * Weq Fattening=true [2018-01-25 03:37:30,108 INFO L133 SettingsManager]: * Flatten before fatten=true [2018-01-25 03:37:30,108 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=VPDomain [2018-01-25 03:37:30,109 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-01-25 03:37:30,109 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-01-25 03:37:30,109 INFO L133 SettingsManager]: * sizeof long=4 [2018-01-25 03:37:30,110 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-01-25 03:37:30,110 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-01-25 03:37:30,110 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-01-25 03:37:30,110 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-01-25 03:37:30,110 INFO L133 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2018-01-25 03:37:30,111 INFO L133 SettingsManager]: * Bitprecise bitfields=true [2018-01-25 03:37:30,111 INFO L133 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2018-01-25 03:37:30,111 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-01-25 03:37:30,111 INFO L133 SettingsManager]: * sizeof long double=12 [2018-01-25 03:37:30,111 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-01-25 03:37:30,111 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-01-25 03:37:30,112 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-01-25 03:37:30,112 INFO L133 SettingsManager]: * Add additional assume for each assert=false [2018-01-25 03:37:30,112 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-01-25 03:37:30,112 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-01-25 03:37:30,112 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-01-25 03:37:30,113 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-01-25 03:37:30,113 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-01-25 03:37:30,113 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-01-25 03:37:30,113 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-01-25 03:37:30,113 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-01-25 03:37:30,114 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-01-25 03:37:30,114 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-01-25 03:37:30,114 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-01-25 03:37:30,115 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-01-25 03:37:30,115 INFO L133 SettingsManager]: * TransformationType=HEAP_SEPARATOR [2018-01-25 03:37:30,150 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-01-25 03:37:30,164 INFO L266 ainManager$Toolchain]: [Toolchain 1]: Parser(s) successfully initialized [2018-01-25 03:37:30,168 INFO L222 ainManager$Toolchain]: [Toolchain 1]: Toolchain data selected. [2018-01-25 03:37:30,170 INFO L271 PluginConnector]: Initializing CDTParser... [2018-01-25 03:37:30,170 INFO L276 PluginConnector]: CDTParser initialized [2018-01-25 03:37:30,171 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-memsafety/memleaks_test22_3_true-valid-memsafety_true-termination.i [2018-01-25 03:37:30,388 INFO L304 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-01-25 03:37:30,395 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-01-25 03:37:30,396 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-01-25 03:37:30,396 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-01-25 03:37:30,403 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-01-25 03:37:30,404 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.01 03:37:30" (1/1) ... [2018-01-25 03:37:30,406 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 03:37:30, skipping insertion in model container [2018-01-25 03:37:30,406 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.01 03:37:30" (1/1) ... [2018-01-25 03:37:30,420 INFO L153 Dispatcher]: Using SV-COMP mode [2018-01-25 03:37:30,471 INFO L153 Dispatcher]: Using SV-COMP mode [2018-01-25 03:37:30,591 INFO L450 PostProcessor]: Settings: Checked method=main [2018-01-25 03:37:30,615 INFO L450 PostProcessor]: Settings: Checked method=main [2018-01-25 03:37:30,630 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.01 03:37:30 WrapperNode [2018-01-25 03:37:30,630 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-01-25 03:37:30,631 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-01-25 03:37:30,631 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-01-25 03:37:30,631 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-01-25 03:37:30,642 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.01 03:37:30" (1/1) ... [2018-01-25 03:37:30,643 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.01 03:37:30" (1/1) ... [2018-01-25 03:37:30,655 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.01 03:37:30" (1/1) ... [2018-01-25 03:37:30,655 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.01 03:37:30" (1/1) ... [2018-01-25 03:37:30,666 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.01 03:37:30" (1/1) ... [2018-01-25 03:37:30,671 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.01 03:37:30" (1/1) ... [2018-01-25 03:37:30,673 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.01 03:37:30" (1/1) ... [2018-01-25 03:37:30,677 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-01-25 03:37:30,678 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-01-25 03:37:30,678 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-01-25 03:37:30,678 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-01-25 03:37:30,680 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.01 03:37:30" (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 03:37:30,730 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-01-25 03:37:30,730 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-01-25 03:37:30,730 INFO L136 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2018-01-25 03:37:30,730 INFO L136 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2018-01-25 03:37:30,730 INFO L136 BoogieDeclarations]: Found implementation of procedure LDV_INIT_LIST_HEAD [2018-01-25 03:37:30,730 INFO L136 BoogieDeclarations]: Found implementation of procedure ldv_atomic_add_return [2018-01-25 03:37:30,730 INFO L136 BoogieDeclarations]: Found implementation of procedure ldv_atomic_sub_return [2018-01-25 03:37:30,730 INFO L136 BoogieDeclarations]: Found implementation of procedure ldv_kref_sub [2018-01-25 03:37:30,731 INFO L136 BoogieDeclarations]: Found implementation of procedure ldv_kref_init [2018-01-25 03:37:30,731 INFO L136 BoogieDeclarations]: Found implementation of procedure ldv_kref_get [2018-01-25 03:37:30,731 INFO L136 BoogieDeclarations]: Found implementation of procedure ldv_kref_put [2018-01-25 03:37:30,731 INFO L136 BoogieDeclarations]: Found implementation of procedure ldv_kobject_cleanup [2018-01-25 03:37:30,731 INFO L136 BoogieDeclarations]: Found implementation of procedure ldv_kobject_release [2018-01-25 03:37:30,731 INFO L136 BoogieDeclarations]: Found implementation of procedure ldv_kobject_put [2018-01-25 03:37:30,731 INFO L136 BoogieDeclarations]: Found implementation of procedure ldv_kobject_get [2018-01-25 03:37:30,731 INFO L136 BoogieDeclarations]: Found implementation of procedure ldv_kobject_init_internal [2018-01-25 03:37:30,731 INFO L136 BoogieDeclarations]: Found implementation of procedure ldv_kobject_init [2018-01-25 03:37:30,731 INFO L136 BoogieDeclarations]: Found implementation of procedure ldv_kobject_create [2018-01-25 03:37:30,732 INFO L136 BoogieDeclarations]: Found implementation of procedure f_22_get [2018-01-25 03:37:30,732 INFO L136 BoogieDeclarations]: Found implementation of procedure f_22_put [2018-01-25 03:37:30,732 INFO L136 BoogieDeclarations]: Found implementation of procedure entry_point [2018-01-25 03:37:30,732 INFO L136 BoogieDeclarations]: Found implementation of procedure main [2018-01-25 03:37:30,732 INFO L128 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2018-01-25 03:37:30,732 INFO L128 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2018-01-25 03:37:30,732 INFO L128 BoogieDeclarations]: Found specification of procedure write~int [2018-01-25 03:37:30,732 INFO L128 BoogieDeclarations]: Found specification of procedure read~int [2018-01-25 03:37:30,733 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.free [2018-01-25 03:37:30,733 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-01-25 03:37:30,733 INFO L128 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-01-25 03:37:30,733 INFO L128 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2018-01-25 03:37:30,733 INFO L136 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2018-01-25 03:37:30,733 INFO L128 BoogieDeclarations]: Found specification of procedure malloc [2018-01-25 03:37:30,733 INFO L128 BoogieDeclarations]: Found specification of procedure free [2018-01-25 03:37:30,733 INFO L128 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2018-01-25 03:37:30,733 INFO L128 BoogieDeclarations]: Found specification of procedure memset [2018-01-25 03:37:30,733 INFO L128 BoogieDeclarations]: Found specification of procedure ldv_malloc [2018-01-25 03:37:30,733 INFO L128 BoogieDeclarations]: Found specification of procedure LDV_INIT_LIST_HEAD [2018-01-25 03:37:30,734 INFO L128 BoogieDeclarations]: Found specification of procedure ldv_atomic_add_return [2018-01-25 03:37:30,734 INFO L128 BoogieDeclarations]: Found specification of procedure ldv_atomic_sub_return [2018-01-25 03:37:30,734 INFO L128 BoogieDeclarations]: Found specification of procedure ldv_kref_sub [2018-01-25 03:37:30,734 INFO L128 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2018-01-25 03:37:30,734 INFO L128 BoogieDeclarations]: Found specification of procedure ldv_kref_init [2018-01-25 03:37:30,734 INFO L128 BoogieDeclarations]: Found specification of procedure ldv_kref_get [2018-01-25 03:37:30,734 INFO L128 BoogieDeclarations]: Found specification of procedure ldv_kref_put [2018-01-25 03:37:30,734 INFO L128 BoogieDeclarations]: Found specification of procedure ldv_kobject_cleanup [2018-01-25 03:37:30,734 INFO L128 BoogieDeclarations]: Found specification of procedure ldv_kobject_release [2018-01-25 03:37:30,734 INFO L128 BoogieDeclarations]: Found specification of procedure ldv_kobject_put [2018-01-25 03:37:30,735 INFO L128 BoogieDeclarations]: Found specification of procedure ldv_kobject_get [2018-01-25 03:37:30,735 INFO L128 BoogieDeclarations]: Found specification of procedure ldv_kobject_init_internal [2018-01-25 03:37:30,735 INFO L128 BoogieDeclarations]: Found specification of procedure ldv_kobject_init [2018-01-25 03:37:30,735 INFO L128 BoogieDeclarations]: Found specification of procedure ldv_kobject_create [2018-01-25 03:37:30,735 INFO L128 BoogieDeclarations]: Found specification of procedure f_22_get [2018-01-25 03:37:30,735 INFO L128 BoogieDeclarations]: Found specification of procedure f_22_put [2018-01-25 03:37:30,735 INFO L128 BoogieDeclarations]: Found specification of procedure entry_point [2018-01-25 03:37:30,736 INFO L128 BoogieDeclarations]: Found specification of procedure main [2018-01-25 03:37:30,736 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-01-25 03:37:30,736 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-01-25 03:37:30,999 WARN L455 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2018-01-25 03:37:31,193 INFO L257 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-01-25 03:37:31,194 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.01 03:37:31 BoogieIcfgContainer [2018-01-25 03:37:31,194 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-01-25 03:37:31,195 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-01-25 03:37:31,196 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-01-25 03:37:31,198 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-01-25 03:37:31,198 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.01 03:37:30" (1/3) ... [2018-01-25 03:37:31,200 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@146d5bd7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.01 03:37:31, skipping insertion in model container [2018-01-25 03:37:31,200 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.01 03:37:30" (2/3) ... [2018-01-25 03:37:31,200 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@146d5bd7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.01 03:37:31, skipping insertion in model container [2018-01-25 03:37:31,200 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.01 03:37:31" (3/3) ... [2018-01-25 03:37:31,202 INFO L105 eAbstractionObserver]: Analyzing ICFG memleaks_test22_3_true-valid-memsafety_true-termination.i [2018-01-25 03:37:31,210 INFO L130 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-01-25 03:37:31,217 INFO L142 ceAbstractionStarter]: Appying trace abstraction to program that has 23 error locations. [2018-01-25 03:37:31,260 INFO L322 AbstractCegarLoop]: Interprodecural is true [2018-01-25 03:37:31,260 INFO L323 AbstractCegarLoop]: Hoare is true [2018-01-25 03:37:31,261 INFO L324 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-01-25 03:37:31,261 INFO L325 AbstractCegarLoop]: Backedges is TWOTRACK [2018-01-25 03:37:31,261 INFO L326 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-01-25 03:37:31,261 INFO L327 AbstractCegarLoop]: Difference is false [2018-01-25 03:37:31,261 INFO L328 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-01-25 03:37:31,261 INFO L333 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-01-25 03:37:31,262 INFO L87 2NestedWordAutomaton]: Mode: main mode - execution starts in main procedure [2018-01-25 03:37:31,283 INFO L276 IsEmpty]: Start isEmpty. Operand 151 states. [2018-01-25 03:37:31,290 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2018-01-25 03:37:31,290 INFO L314 BasicCegarLoop]: Found error trace [2018-01-25 03:37:31,292 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 03:37:31,292 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 03:37:31,296 INFO L82 PathProgramCache]: Analyzing trace with hash 1245228870, now seen corresponding path program 1 times [2018-01-25 03:37:31,298 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-25 03:37:31,347 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-25 03:37:31,348 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-25 03:37:31,348 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-25 03:37:31,348 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-25 03:37:31,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-25 03:37:31,403 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-25 03:37:31,642 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 03:37:31,644 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-25 03:37:31,645 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-01-25 03:37:31,645 INFO L252 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-01-25 03:37:31,649 INFO L409 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-01-25 03:37:31,661 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-01-25 03:37:31,662 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-01-25 03:37:31,664 INFO L87 Difference]: Start difference. First operand 151 states. Second operand 5 states. [2018-01-25 03:37:31,735 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-25 03:37:31,735 INFO L93 Difference]: Finished difference Result 290 states and 307 transitions. [2018-01-25 03:37:31,735 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-01-25 03:37:31,737 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 17 [2018-01-25 03:37:31,738 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-25 03:37:31,749 INFO L225 Difference]: With dead ends: 290 [2018-01-25 03:37:31,749 INFO L226 Difference]: Without dead ends: 154 [2018-01-25 03:37:31,754 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 03:37:31,767 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 154 states. [2018-01-25 03:37:31,791 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 154 to 152. [2018-01-25 03:37:31,792 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 152 states. [2018-01-25 03:37:31,795 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 152 states to 152 states and 161 transitions. [2018-01-25 03:37:31,797 INFO L78 Accepts]: Start accepts. Automaton has 152 states and 161 transitions. Word has length 17 [2018-01-25 03:37:31,797 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-25 03:37:31,797 INFO L432 AbstractCegarLoop]: Abstraction has 152 states and 161 transitions. [2018-01-25 03:37:31,797 INFO L433 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-01-25 03:37:31,797 INFO L276 IsEmpty]: Start isEmpty. Operand 152 states and 161 transitions. [2018-01-25 03:37:31,798 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2018-01-25 03:37:31,798 INFO L314 BasicCegarLoop]: Found error trace [2018-01-25 03:37:31,798 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 03:37:31,798 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 03:37:31,798 INFO L82 PathProgramCache]: Analyzing trace with hash -1572748952, now seen corresponding path program 1 times [2018-01-25 03:37:31,798 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-25 03:37:31,800 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-25 03:37:31,800 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-25 03:37:31,800 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-25 03:37:31,800 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-25 03:37:31,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-25 03:37:31,822 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-25 03:37:31,893 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 03:37:31,893 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-25 03:37:31,893 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-01-25 03:37:31,893 INFO L252 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-01-25 03:37:31,895 INFO L409 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-01-25 03:37:31,896 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-01-25 03:37:31,896 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-01-25 03:37:31,896 INFO L87 Difference]: Start difference. First operand 152 states and 161 transitions. Second operand 6 states. [2018-01-25 03:37:32,143 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-25 03:37:32,143 INFO L93 Difference]: Finished difference Result 154 states and 163 transitions. [2018-01-25 03:37:32,143 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-01-25 03:37:32,144 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 19 [2018-01-25 03:37:32,144 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-25 03:37:32,146 INFO L225 Difference]: With dead ends: 154 [2018-01-25 03:37:32,147 INFO L226 Difference]: Without dead ends: 153 [2018-01-25 03:37:32,149 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 03:37:32,150 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 153 states. [2018-01-25 03:37:32,164 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 153 to 151. [2018-01-25 03:37:32,164 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 151 states. [2018-01-25 03:37:32,168 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 151 states to 151 states and 160 transitions. [2018-01-25 03:37:32,168 INFO L78 Accepts]: Start accepts. Automaton has 151 states and 160 transitions. Word has length 19 [2018-01-25 03:37:32,168 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-25 03:37:32,168 INFO L432 AbstractCegarLoop]: Abstraction has 151 states and 160 transitions. [2018-01-25 03:37:32,169 INFO L433 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-01-25 03:37:32,169 INFO L276 IsEmpty]: Start isEmpty. Operand 151 states and 160 transitions. [2018-01-25 03:37:32,169 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2018-01-25 03:37:32,169 INFO L314 BasicCegarLoop]: Found error trace [2018-01-25 03:37:32,170 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 03:37:32,170 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 03:37:32,170 INFO L82 PathProgramCache]: Analyzing trace with hash -1572748951, now seen corresponding path program 1 times [2018-01-25 03:37:32,170 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-25 03:37:32,172 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-25 03:37:32,172 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-25 03:37:32,172 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-25 03:37:32,172 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-25 03:37:32,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-25 03:37:32,199 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-25 03:37:32,555 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 03:37:32,556 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-25 03:37:32,556 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-01-25 03:37:32,556 INFO L252 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-01-25 03:37:32,556 INFO L409 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-01-25 03:37:32,557 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-01-25 03:37:32,557 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-01-25 03:37:32,557 INFO L87 Difference]: Start difference. First operand 151 states and 160 transitions. Second operand 7 states. [2018-01-25 03:37:32,791 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-25 03:37:32,791 INFO L93 Difference]: Finished difference Result 153 states and 162 transitions. [2018-01-25 03:37:32,791 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-01-25 03:37:32,792 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 19 [2018-01-25 03:37:32,792 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-25 03:37:32,794 INFO L225 Difference]: With dead ends: 153 [2018-01-25 03:37:32,794 INFO L226 Difference]: Without dead ends: 152 [2018-01-25 03:37:32,795 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 03:37:32,795 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 152 states. [2018-01-25 03:37:32,807 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 152 to 150. [2018-01-25 03:37:32,807 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 150 states. [2018-01-25 03:37:32,809 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 150 states to 150 states and 159 transitions. [2018-01-25 03:37:32,809 INFO L78 Accepts]: Start accepts. Automaton has 150 states and 159 transitions. Word has length 19 [2018-01-25 03:37:32,810 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-25 03:37:32,810 INFO L432 AbstractCegarLoop]: Abstraction has 150 states and 159 transitions. [2018-01-25 03:37:32,810 INFO L433 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-01-25 03:37:32,810 INFO L276 IsEmpty]: Start isEmpty. Operand 150 states and 159 transitions. [2018-01-25 03:37:32,811 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2018-01-25 03:37:32,811 INFO L314 BasicCegarLoop]: Found error trace [2018-01-25 03:37:32,812 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] [2018-01-25 03:37:32,812 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 03:37:32,813 INFO L82 PathProgramCache]: Analyzing trace with hash -336004596, now seen corresponding path program 1 times [2018-01-25 03:37:32,813 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-25 03:37:32,814 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-25 03:37:32,814 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-25 03:37:32,815 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-25 03:37:32,815 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-25 03:37:32,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-25 03:37:32,833 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-25 03:37:32,937 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 03:37:32,938 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-25 03:37:32,938 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2018-01-25 03:37:32,938 INFO L252 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-01-25 03:37:32,938 INFO L409 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-01-25 03:37:32,938 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-01-25 03:37:32,939 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2018-01-25 03:37:32,939 INFO L87 Difference]: Start difference. First operand 150 states and 159 transitions. Second operand 9 states. [2018-01-25 03:37:33,063 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-25 03:37:33,064 INFO L93 Difference]: Finished difference Result 256 states and 271 transitions. [2018-01-25 03:37:33,065 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-01-25 03:37:33,065 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 29 [2018-01-25 03:37:33,066 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-25 03:37:33,068 INFO L225 Difference]: With dead ends: 256 [2018-01-25 03:37:33,068 INFO L226 Difference]: Without dead ends: 171 [2018-01-25 03:37:33,069 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 [2018-01-25 03:37:33,069 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 171 states. [2018-01-25 03:37:33,083 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 171 to 164. [2018-01-25 03:37:33,083 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 164 states. [2018-01-25 03:37:33,084 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 164 states to 164 states and 173 transitions. [2018-01-25 03:37:33,085 INFO L78 Accepts]: Start accepts. Automaton has 164 states and 173 transitions. Word has length 29 [2018-01-25 03:37:33,085 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-25 03:37:33,085 INFO L432 AbstractCegarLoop]: Abstraction has 164 states and 173 transitions. [2018-01-25 03:37:33,085 INFO L433 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-01-25 03:37:33,085 INFO L276 IsEmpty]: Start isEmpty. Operand 164 states and 173 transitions. [2018-01-25 03:37:33,086 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2018-01-25 03:37:33,087 INFO L314 BasicCegarLoop]: Found error trace [2018-01-25 03:37:33,087 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 03:37:33,087 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 03:37:33,087 INFO L82 PathProgramCache]: Analyzing trace with hash 610577100, now seen corresponding path program 1 times [2018-01-25 03:37:33,087 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-25 03:37:33,089 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-25 03:37:33,089 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-25 03:37:33,089 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-25 03:37:33,089 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-25 03:37:33,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-25 03:37:33,108 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-25 03:37:33,202 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 03:37:33,203 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-25 03:37:33,203 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2018-01-25 03:37:33,203 INFO L252 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-01-25 03:37:33,203 INFO L409 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-01-25 03:37:33,204 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-01-25 03:37:33,204 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2018-01-25 03:37:33,204 INFO L87 Difference]: Start difference. First operand 164 states and 173 transitions. Second operand 10 states. [2018-01-25 03:37:33,434 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-25 03:37:33,434 INFO L93 Difference]: Finished difference Result 164 states and 173 transitions. [2018-01-25 03:37:33,434 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-01-25 03:37:33,434 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 34 [2018-01-25 03:37:33,435 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-25 03:37:33,436 INFO L225 Difference]: With dead ends: 164 [2018-01-25 03:37:33,436 INFO L226 Difference]: Without dead ends: 163 [2018-01-25 03:37:33,437 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 03:37:33,437 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 163 states. [2018-01-25 03:37:33,446 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 163 to 163. [2018-01-25 03:37:33,446 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 163 states. [2018-01-25 03:37:33,448 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 163 states to 163 states and 172 transitions. [2018-01-25 03:37:33,449 INFO L78 Accepts]: Start accepts. Automaton has 163 states and 172 transitions. Word has length 34 [2018-01-25 03:37:33,449 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-25 03:37:33,449 INFO L432 AbstractCegarLoop]: Abstraction has 163 states and 172 transitions. [2018-01-25 03:37:33,449 INFO L433 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-01-25 03:37:33,449 INFO L276 IsEmpty]: Start isEmpty. Operand 163 states and 172 transitions. [2018-01-25 03:37:33,450 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2018-01-25 03:37:33,450 INFO L314 BasicCegarLoop]: Found error trace [2018-01-25 03:37:33,450 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 03:37:33,451 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 03:37:33,451 INFO L82 PathProgramCache]: Analyzing trace with hash 610577101, now seen corresponding path program 1 times [2018-01-25 03:37:33,451 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-25 03:37:33,452 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-25 03:37:33,452 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-25 03:37:33,452 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-25 03:37:33,452 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-25 03:37:33,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-25 03:37:33,471 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-25 03:37:33,508 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 03:37:33,509 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-25 03:37:33,509 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-01-25 03:37:33,509 INFO L252 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-01-25 03:37:33,509 INFO L409 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-01-25 03:37:33,509 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-01-25 03:37:33,509 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-01-25 03:37:33,510 INFO L87 Difference]: Start difference. First operand 163 states and 172 transitions. Second operand 4 states. [2018-01-25 03:37:33,538 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-25 03:37:33,538 INFO L93 Difference]: Finished difference Result 287 states and 303 transitions. [2018-01-25 03:37:33,539 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-01-25 03:37:33,539 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 34 [2018-01-25 03:37:33,539 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-25 03:37:33,541 INFO L225 Difference]: With dead ends: 287 [2018-01-25 03:37:33,541 INFO L226 Difference]: Without dead ends: 164 [2018-01-25 03:37:33,542 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 03:37:33,543 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 164 states. [2018-01-25 03:37:33,552 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 164 to 164. [2018-01-25 03:37:33,552 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 164 states. [2018-01-25 03:37:33,554 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 164 states to 164 states and 173 transitions. [2018-01-25 03:37:33,554 INFO L78 Accepts]: Start accepts. Automaton has 164 states and 173 transitions. Word has length 34 [2018-01-25 03:37:33,555 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-25 03:37:33,555 INFO L432 AbstractCegarLoop]: Abstraction has 164 states and 173 transitions. [2018-01-25 03:37:33,555 INFO L433 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-01-25 03:37:33,555 INFO L276 IsEmpty]: Start isEmpty. Operand 164 states and 173 transitions. [2018-01-25 03:37:33,556 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2018-01-25 03:37:33,556 INFO L314 BasicCegarLoop]: Found error trace [2018-01-25 03:37:33,556 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 03:37:33,557 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 03:37:33,557 INFO L82 PathProgramCache]: Analyzing trace with hash -838244594, now seen corresponding path program 1 times [2018-01-25 03:37:33,557 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-25 03:37:33,558 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-25 03:37:33,558 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-25 03:37:33,559 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-25 03:37:33,559 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-25 03:37:33,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-25 03:37:33,577 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-25 03:37:33,631 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 03:37:33,631 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-01-25 03:37:33,631 INFO L187 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-01-25 03:37:33,632 INFO L199 CegarAbsIntRunner]: Running AI on error trace of length 36 with the following transitions: [2018-01-25 03:37:33,634 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] [2018-01-25 03:37:33,690 INFO L147 AbstractInterpreter]: Using domain VPDomain [2018-01-25 03:37:33,691 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