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/cade18-smtinterpol/svcomp-DerefFreeMemtrack-32bit-Automizer_SmtInterpol_NoArray.epf -i ../../../trunk/examples/svcomp/ldv-memsafety/memleaks_test22_1_false-valid-memtrack_true-termination.i -------------------------------------------------------------------------------- This is Ultimate 0.1.23-c17473d-m [2018-02-04 19:14:16,125 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-02-04 19:14:16,126 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-02-04 19:14:16,139 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-02-04 19:14:16,139 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-02-04 19:14:16,140 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-02-04 19:14:16,141 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-02-04 19:14:16,142 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-02-04 19:14:16,144 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-02-04 19:14:16,144 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-02-04 19:14:16,145 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-02-04 19:14:16,145 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-02-04 19:14:16,146 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-02-04 19:14:16,147 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-02-04 19:14:16,148 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-02-04 19:14:16,149 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-02-04 19:14:16,151 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-02-04 19:14:16,152 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-02-04 19:14:16,153 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-02-04 19:14:16,154 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-02-04 19:14:16,156 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-02-04 19:14:16,156 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-02-04 19:14:16,156 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-02-04 19:14:16,157 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-02-04 19:14:16,158 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-02-04 19:14:16,159 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-02-04 19:14:16,159 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-02-04 19:14:16,160 INFO L177 SettingsManager]: PEA to Boogie provides no preferences, ignoring... [2018-02-04 19:14:16,160 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-02-04 19:14:16,160 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-02-04 19:14:16,160 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-02-04 19:14:16,161 INFO L98 SettingsManager]: Beginning loading settings from /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/cade18-smtinterpol/svcomp-DerefFreeMemtrack-32bit-Automizer_SmtInterpol_NoArray.epf [2018-02-04 19:14:16,170 INFO L110 SettingsManager]: Loading preferences was successful [2018-02-04 19:14:16,170 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-02-04 19:14:16,171 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-02-04 19:14:16,171 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-02-04 19:14:16,171 INFO L133 SettingsManager]: * Use SBE=true [2018-02-04 19:14:16,171 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-02-04 19:14:16,171 INFO L133 SettingsManager]: * sizeof long=4 [2018-02-04 19:14:16,171 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-02-04 19:14:16,172 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-02-04 19:14:16,172 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-02-04 19:14:16,172 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-02-04 19:14:16,172 INFO L133 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2018-02-04 19:14:16,172 INFO L133 SettingsManager]: * Bitprecise bitfields=true [2018-02-04 19:14:16,172 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-02-04 19:14:16,172 INFO L133 SettingsManager]: * sizeof long double=12 [2018-02-04 19:14:16,172 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-02-04 19:14:16,172 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-02-04 19:14:16,172 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-02-04 19:14:16,173 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-02-04 19:14:16,173 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-02-04 19:14:16,173 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-02-04 19:14:16,173 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-02-04 19:14:16,173 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-02-04 19:14:16,173 INFO L133 SettingsManager]: * Trace refinement strategy=SMTINTERPOL [2018-02-04 19:14:16,200 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-02-04 19:14:16,209 INFO L266 ainManager$Toolchain]: [Toolchain 1]: Parser(s) successfully initialized [2018-02-04 19:14:16,212 INFO L222 ainManager$Toolchain]: [Toolchain 1]: Toolchain data selected. [2018-02-04 19:14:16,213 INFO L271 PluginConnector]: Initializing CDTParser... [2018-02-04 19:14:16,213 INFO L276 PluginConnector]: CDTParser initialized [2018-02-04 19:14:16,214 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-memsafety/memleaks_test22_1_false-valid-memtrack_true-termination.i [2018-02-04 19:14:16,352 INFO L304 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-02-04 19:14:16,353 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-02-04 19:14:16,353 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-02-04 19:14:16,353 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-02-04 19:14:16,357 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-02-04 19:14:16,358 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.02 07:14:16" (1/1) ... [2018-02-04 19:14:16,361 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6d34c095 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 07:14:16, skipping insertion in model container [2018-02-04 19:14:16,361 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.02 07:14:16" (1/1) ... [2018-02-04 19:14:16,371 INFO L153 Dispatcher]: Using SV-COMP mode [2018-02-04 19:14:16,405 INFO L153 Dispatcher]: Using SV-COMP mode [2018-02-04 19:14:16,508 INFO L450 PostProcessor]: Settings: Checked method=main [2018-02-04 19:14:16,528 INFO L450 PostProcessor]: Settings: Checked method=main [2018-02-04 19:14:16,537 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 07:14:16 WrapperNode [2018-02-04 19:14:16,538 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-02-04 19:14:16,538 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-02-04 19:14:16,538 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-02-04 19:14:16,538 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-02-04 19:14:16,548 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 07:14:16" (1/1) ... [2018-02-04 19:14:16,548 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 07:14:16" (1/1) ... [2018-02-04 19:14:16,557 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 07:14:16" (1/1) ... [2018-02-04 19:14:16,557 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 07:14:16" (1/1) ... [2018-02-04 19:14:16,565 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 07:14:16" (1/1) ... [2018-02-04 19:14:16,568 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 07:14:16" (1/1) ... [2018-02-04 19:14:16,570 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 07:14:16" (1/1) ... [2018-02-04 19:14:16,573 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-02-04 19:14:16,573 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-02-04 19:14:16,573 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-02-04 19:14:16,574 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-02-04 19:14:16,574 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 07:14:16" (1/1) ... No working directory specified, using /home/ultimate/work/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 [2018-02-04 19:14:16,616 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-02-04 19:14:16,617 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-02-04 19:14:16,617 INFO L136 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2018-02-04 19:14:16,617 INFO L136 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2018-02-04 19:14:16,617 INFO L136 BoogieDeclarations]: Found implementation of procedure LDV_INIT_LIST_HEAD [2018-02-04 19:14:16,617 INFO L136 BoogieDeclarations]: Found implementation of procedure ldv_atomic_add_return [2018-02-04 19:14:16,617 INFO L136 BoogieDeclarations]: Found implementation of procedure ldv_atomic_sub_return [2018-02-04 19:14:16,617 INFO L136 BoogieDeclarations]: Found implementation of procedure ldv_kref_sub [2018-02-04 19:14:16,617 INFO L136 BoogieDeclarations]: Found implementation of procedure ldv_kref_init [2018-02-04 19:14:16,618 INFO L136 BoogieDeclarations]: Found implementation of procedure ldv_kref_get [2018-02-04 19:14:16,618 INFO L136 BoogieDeclarations]: Found implementation of procedure ldv_kref_put [2018-02-04 19:14:16,618 INFO L136 BoogieDeclarations]: Found implementation of procedure ldv_kobject_cleanup [2018-02-04 19:14:16,618 INFO L136 BoogieDeclarations]: Found implementation of procedure ldv_kobject_release [2018-02-04 19:14:16,618 INFO L136 BoogieDeclarations]: Found implementation of procedure ldv_kobject_put [2018-02-04 19:14:16,618 INFO L136 BoogieDeclarations]: Found implementation of procedure ldv_kobject_get [2018-02-04 19:14:16,618 INFO L136 BoogieDeclarations]: Found implementation of procedure ldv_kobject_init_internal [2018-02-04 19:14:16,618 INFO L136 BoogieDeclarations]: Found implementation of procedure ldv_kobject_init [2018-02-04 19:14:16,618 INFO L136 BoogieDeclarations]: Found implementation of procedure ldv_kobject_create [2018-02-04 19:14:16,619 INFO L136 BoogieDeclarations]: Found implementation of procedure entry_point [2018-02-04 19:14:16,619 INFO L136 BoogieDeclarations]: Found implementation of procedure main [2018-02-04 19:14:16,619 INFO L128 BoogieDeclarations]: Found specification of procedure write~int [2018-02-04 19:14:16,619 INFO L128 BoogieDeclarations]: Found specification of procedure read~int [2018-02-04 19:14:16,619 INFO L128 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2018-02-04 19:14:16,619 INFO L128 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2018-02-04 19:14:16,619 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.free [2018-02-04 19:14:16,619 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-02-04 19:14:16,620 INFO L128 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-02-04 19:14:16,620 INFO L128 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2018-02-04 19:14:16,620 INFO L136 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2018-02-04 19:14:16,620 INFO L128 BoogieDeclarations]: Found specification of procedure malloc [2018-02-04 19:14:16,620 INFO L128 BoogieDeclarations]: Found specification of procedure free [2018-02-04 19:14:16,620 INFO L128 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2018-02-04 19:14:16,620 INFO L128 BoogieDeclarations]: Found specification of procedure memset [2018-02-04 19:14:16,620 INFO L128 BoogieDeclarations]: Found specification of procedure ldv_malloc [2018-02-04 19:14:16,620 INFO L128 BoogieDeclarations]: Found specification of procedure LDV_INIT_LIST_HEAD [2018-02-04 19:14:16,621 INFO L128 BoogieDeclarations]: Found specification of procedure ldv_atomic_add_return [2018-02-04 19:14:16,621 INFO L128 BoogieDeclarations]: Found specification of procedure ldv_atomic_sub_return [2018-02-04 19:14:16,621 INFO L128 BoogieDeclarations]: Found specification of procedure ldv_kref_sub [2018-02-04 19:14:16,621 INFO L128 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2018-02-04 19:14:16,621 INFO L128 BoogieDeclarations]: Found specification of procedure ldv_kref_init [2018-02-04 19:14:16,621 INFO L128 BoogieDeclarations]: Found specification of procedure ldv_kref_get [2018-02-04 19:14:16,621 INFO L128 BoogieDeclarations]: Found specification of procedure ldv_kref_put [2018-02-04 19:14:16,621 INFO L128 BoogieDeclarations]: Found specification of procedure ldv_kobject_cleanup [2018-02-04 19:14:16,621 INFO L128 BoogieDeclarations]: Found specification of procedure ldv_kobject_release [2018-02-04 19:14:16,622 INFO L128 BoogieDeclarations]: Found specification of procedure ldv_kobject_put [2018-02-04 19:14:16,622 INFO L128 BoogieDeclarations]: Found specification of procedure ldv_kobject_get [2018-02-04 19:14:16,622 INFO L128 BoogieDeclarations]: Found specification of procedure ldv_kobject_init_internal [2018-02-04 19:14:16,622 INFO L128 BoogieDeclarations]: Found specification of procedure ldv_kobject_init [2018-02-04 19:14:16,622 INFO L128 BoogieDeclarations]: Found specification of procedure ldv_kobject_create [2018-02-04 19:14:16,622 INFO L128 BoogieDeclarations]: Found specification of procedure entry_point [2018-02-04 19:14:16,622 INFO L128 BoogieDeclarations]: Found specification of procedure main [2018-02-04 19:14:16,622 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-02-04 19:14:16,622 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-02-04 19:14:16,795 WARN L455 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2018-02-04 19:14:16,944 INFO L257 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-02-04 19:14:16,944 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.02 07:14:16 BoogieIcfgContainer [2018-02-04 19:14:16,944 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-02-04 19:14:16,945 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-02-04 19:14:16,945 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-02-04 19:14:16,948 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-02-04 19:14:16,948 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 04.02 07:14:16" (1/3) ... [2018-02-04 19:14:16,949 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@de53ac2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.02 07:14:16, skipping insertion in model container [2018-02-04 19:14:16,949 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 07:14:16" (2/3) ... [2018-02-04 19:14:16,949 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@de53ac2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.02 07:14:16, skipping insertion in model container [2018-02-04 19:14:16,949 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.02 07:14:16" (3/3) ... [2018-02-04 19:14:16,950 INFO L107 eAbstractionObserver]: Analyzing ICFG memleaks_test22_1_false-valid-memtrack_true-termination.i [2018-02-04 19:14:16,958 INFO L128 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-02-04 19:14:16,964 INFO L140 ceAbstractionStarter]: Appying trace abstraction to program that has 23 error locations. [2018-02-04 19:14:16,994 INFO L322 AbstractCegarLoop]: Interprodecural is true [2018-02-04 19:14:16,994 INFO L323 AbstractCegarLoop]: Hoare is false [2018-02-04 19:14:16,994 INFO L324 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-02-04 19:14:16,995 INFO L325 AbstractCegarLoop]: Backedges is TWOTRACK [2018-02-04 19:14:16,995 INFO L326 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-02-04 19:14:16,995 INFO L327 AbstractCegarLoop]: Difference is false [2018-02-04 19:14:16,995 INFO L328 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-02-04 19:14:16,995 INFO L333 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-02-04 19:14:16,996 INFO L87 2NestedWordAutomaton]: Mode: main mode - execution starts in main procedure [2018-02-04 19:14:17,007 INFO L276 IsEmpty]: Start isEmpty. Operand 142 states. [2018-02-04 19:14:17,014 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2018-02-04 19:14:17,014 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 19:14:17,015 INFO L351 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-04 19:14:17,015 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]=== [2018-02-04 19:14:17,018 INFO L82 PathProgramCache]: Analyzing trace with hash -1956546830, now seen corresponding path program 1 times [2018-02-04 19:14:17,019 INFO L213 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-02-04 19:14:17,019 INFO L67 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-02-04 19:14:17,052 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 19:14:17,052 INFO L109 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-02-04 19:14:17,052 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 19:14:17,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 19:14:17,097 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-04 19:14:17,268 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 19:14:17,271 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-02-04 19:14:17,271 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-02-04 19:14:17,273 INFO L409 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-02-04 19:14:17,287 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-02-04 19:14:17,288 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-02-04 19:14:17,290 INFO L87 Difference]: Start difference. First operand 142 states. Second operand 5 states. [2018-02-04 19:14:17,335 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-04 19:14:17,335 INFO L93 Difference]: Finished difference Result 148 states and 156 transitions. [2018-02-04 19:14:17,335 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-02-04 19:14:17,336 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 17 [2018-02-04 19:14:17,337 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-04 19:14:17,348 INFO L225 Difference]: With dead ends: 148 [2018-02-04 19:14:17,348 INFO L226 Difference]: Without dead ends: 145 [2018-02-04 19:14:17,350 INFO L554 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 [2018-02-04 19:14:17,363 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 145 states. [2018-02-04 19:14:17,381 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 145 to 143. [2018-02-04 19:14:17,382 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 143 states. [2018-02-04 19:14:17,385 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 143 states to 143 states and 151 transitions. [2018-02-04 19:14:17,386 INFO L78 Accepts]: Start accepts. Automaton has 143 states and 151 transitions. Word has length 17 [2018-02-04 19:14:17,386 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-04 19:14:17,386 INFO L432 AbstractCegarLoop]: Abstraction has 143 states and 151 transitions. [2018-02-04 19:14:17,387 INFO L433 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-02-04 19:14:17,387 INFO L276 IsEmpty]: Start isEmpty. Operand 143 states and 151 transitions. [2018-02-04 19:14:17,387 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2018-02-04 19:14:17,387 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 19:14:17,388 INFO L351 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-04 19:14:17,388 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]=== [2018-02-04 19:14:17,388 INFO L82 PathProgramCache]: Analyzing trace with hash 1123892084, now seen corresponding path program 1 times [2018-02-04 19:14:17,388 INFO L213 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-02-04 19:14:17,388 INFO L67 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-02-04 19:14:17,390 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 19:14:17,390 INFO L109 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-02-04 19:14:17,390 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 19:14:17,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 19:14:17,405 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-04 19:14:17,444 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 19:14:17,444 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-02-04 19:14:17,444 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-02-04 19:14:17,445 INFO L409 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-02-04 19:14:17,445 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-02-04 19:14:17,445 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-02-04 19:14:17,445 INFO L87 Difference]: Start difference. First operand 143 states and 151 transitions. Second operand 6 states. [2018-02-04 19:14:17,557 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-04 19:14:17,557 INFO L93 Difference]: Finished difference Result 144 states and 152 transitions. [2018-02-04 19:14:17,557 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-02-04 19:14:17,558 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 19 [2018-02-04 19:14:17,558 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-04 19:14:17,559 INFO L225 Difference]: With dead ends: 144 [2018-02-04 19:14:17,559 INFO L226 Difference]: Without dead ends: 144 [2018-02-04 19:14:17,560 INFO L554 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 [2018-02-04 19:14:17,560 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 144 states. [2018-02-04 19:14:17,566 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 144 to 142. [2018-02-04 19:14:17,566 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 142 states. [2018-02-04 19:14:17,568 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 142 states to 142 states and 150 transitions. [2018-02-04 19:14:17,569 INFO L78 Accepts]: Start accepts. Automaton has 142 states and 150 transitions. Word has length 19 [2018-02-04 19:14:17,569 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-04 19:14:17,569 INFO L432 AbstractCegarLoop]: Abstraction has 142 states and 150 transitions. [2018-02-04 19:14:17,569 INFO L433 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-02-04 19:14:17,569 INFO L276 IsEmpty]: Start isEmpty. Operand 142 states and 150 transitions. [2018-02-04 19:14:17,570 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2018-02-04 19:14:17,570 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 19:14:17,570 INFO L351 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-04 19:14:17,570 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]=== [2018-02-04 19:14:17,570 INFO L82 PathProgramCache]: Analyzing trace with hash 1123892085, now seen corresponding path program 1 times [2018-02-04 19:14:17,570 INFO L213 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-02-04 19:14:17,570 INFO L67 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-02-04 19:14:17,571 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 19:14:17,571 INFO L109 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-02-04 19:14:17,571 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 19:14:17,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 19:14:17,589 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-04 19:14:17,726 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 19:14:17,727 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-02-04 19:14:17,727 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-02-04 19:14:17,727 INFO L409 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-02-04 19:14:17,727 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-02-04 19:14:17,727 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-02-04 19:14:17,728 INFO L87 Difference]: Start difference. First operand 142 states and 150 transitions. Second operand 7 states. [2018-02-04 19:14:17,914 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-04 19:14:17,915 INFO L93 Difference]: Finished difference Result 143 states and 151 transitions. [2018-02-04 19:14:17,915 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-02-04 19:14:17,915 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 19 [2018-02-04 19:14:17,916 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-04 19:14:17,917 INFO L225 Difference]: With dead ends: 143 [2018-02-04 19:14:17,917 INFO L226 Difference]: Without dead ends: 143 [2018-02-04 19:14:17,917 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2018-02-04 19:14:17,917 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 143 states. [2018-02-04 19:14:17,923 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 143 to 141. [2018-02-04 19:14:17,923 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 141 states. [2018-02-04 19:14:17,925 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 141 states to 141 states and 149 transitions. [2018-02-04 19:14:17,925 INFO L78 Accepts]: Start accepts. Automaton has 141 states and 149 transitions. Word has length 19 [2018-02-04 19:14:17,925 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-04 19:14:17,925 INFO L432 AbstractCegarLoop]: Abstraction has 141 states and 149 transitions. [2018-02-04 19:14:17,925 INFO L433 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-02-04 19:14:17,925 INFO L276 IsEmpty]: Start isEmpty. Operand 141 states and 149 transitions. [2018-02-04 19:14:17,926 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2018-02-04 19:14:17,926 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 19:14:17,926 INFO L351 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-04 19:14:17,926 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]=== [2018-02-04 19:14:17,927 INFO L82 PathProgramCache]: Analyzing trace with hash -1414777661, now seen corresponding path program 1 times [2018-02-04 19:14:17,927 INFO L213 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-02-04 19:14:17,927 INFO L67 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-02-04 19:14:17,928 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 19:14:17,928 INFO L109 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-02-04 19:14:17,928 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 19:14:17,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 19:14:17,941 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-04 19:14:17,993 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 19:14:17,994 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-02-04 19:14:17,994 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-02-04 19:14:17,994 INFO L409 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-02-04 19:14:17,994 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-02-04 19:14:17,994 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-02-04 19:14:17,994 INFO L87 Difference]: Start difference. First operand 141 states and 149 transitions. Second operand 7 states. [2018-02-04 19:14:18,022 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-04 19:14:18,022 INFO L93 Difference]: Finished difference Result 157 states and 166 transitions. [2018-02-04 19:14:18,022 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-02-04 19:14:18,022 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 27 [2018-02-04 19:14:18,023 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-04 19:14:18,024 INFO L225 Difference]: With dead ends: 157 [2018-02-04 19:14:18,024 INFO L226 Difference]: Without dead ends: 157 [2018-02-04 19:14:18,024 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2018-02-04 19:14:18,024 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 157 states. [2018-02-04 19:14:18,031 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 157 to 150. [2018-02-04 19:14:18,031 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 150 states. [2018-02-04 19:14:18,032 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 150 states to 150 states and 158 transitions. [2018-02-04 19:14:18,032 INFO L78 Accepts]: Start accepts. Automaton has 150 states and 158 transitions. Word has length 27 [2018-02-04 19:14:18,032 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-04 19:14:18,033 INFO L432 AbstractCegarLoop]: Abstraction has 150 states and 158 transitions. [2018-02-04 19:14:18,033 INFO L433 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-02-04 19:14:18,033 INFO L276 IsEmpty]: Start isEmpty. Operand 150 states and 158 transitions. [2018-02-04 19:14:18,034 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2018-02-04 19:14:18,034 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 19:14:18,034 INFO L351 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] [2018-02-04 19:14:18,034 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]=== [2018-02-04 19:14:18,034 INFO L82 PathProgramCache]: Analyzing trace with hash 1439517623, now seen corresponding path program 1 times [2018-02-04 19:14:18,034 INFO L213 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-02-04 19:14:18,034 INFO L67 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-02-04 19:14:18,035 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 19:14:18,035 INFO L109 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-02-04 19:14:18,036 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 19:14:18,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 19:14:18,048 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-04 19:14:18,123 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 19:14:18,123 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-02-04 19:14:18,123 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2018-02-04 19:14:18,124 INFO L409 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-02-04 19:14:18,124 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-02-04 19:14:18,124 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2018-02-04 19:14:18,124 INFO L87 Difference]: Start difference. First operand 150 states and 158 transitions. Second operand 10 states. [2018-02-04 19:14:18,327 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-04 19:14:18,328 INFO L93 Difference]: Finished difference Result 149 states and 157 transitions. [2018-02-04 19:14:18,328 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-02-04 19:14:18,328 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 34 [2018-02-04 19:14:18,328 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-04 19:14:18,329 INFO L225 Difference]: With dead ends: 149 [2018-02-04 19:14:18,329 INFO L226 Difference]: Without dead ends: 149 [2018-02-04 19:14:18,329 INFO L554 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 [2018-02-04 19:14:18,329 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 149 states. [2018-02-04 19:14:18,333 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 149 to 149. [2018-02-04 19:14:18,333 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 149 states. [2018-02-04 19:14:18,334 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 149 states to 149 states and 157 transitions. [2018-02-04 19:14:18,334 INFO L78 Accepts]: Start accepts. Automaton has 149 states and 157 transitions. Word has length 34 [2018-02-04 19:14:18,335 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-04 19:14:18,335 INFO L432 AbstractCegarLoop]: Abstraction has 149 states and 157 transitions. [2018-02-04 19:14:18,335 INFO L433 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-02-04 19:14:18,335 INFO L276 IsEmpty]: Start isEmpty. Operand 149 states and 157 transitions. [2018-02-04 19:14:18,336 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2018-02-04 19:14:18,336 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 19:14:18,336 INFO L351 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] [2018-02-04 19:14:18,336 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]=== [2018-02-04 19:14:18,336 INFO L82 PathProgramCache]: Analyzing trace with hash 1439517624, now seen corresponding path program 1 times [2018-02-04 19:14:18,336 INFO L213 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-02-04 19:14:18,336 INFO L67 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-02-04 19:14:18,338 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 19:14:18,338 INFO L109 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-02-04 19:14:18,338 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 19:14:18,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 19:14:18,351 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-04 19:14:18,377 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 19:14:18,377 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-02-04 19:14:18,377 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-02-04 19:14:18,378 INFO L409 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-02-04 19:14:18,378 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-02-04 19:14:18,378 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-02-04 19:14:18,378 INFO L87 Difference]: Start difference. First operand 149 states and 157 transitions. Second operand 4 states. [2018-02-04 19:14:18,389 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-04 19:14:18,389 INFO L93 Difference]: Finished difference Result 152 states and 160 transitions. [2018-02-04 19:14:18,390 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-02-04 19:14:18,390 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 34 [2018-02-04 19:14:18,390 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-04 19:14:18,391 INFO L225 Difference]: With dead ends: 152 [2018-02-04 19:14:18,391 INFO L226 Difference]: Without dead ends: 150 [2018-02-04 19:14:18,391 INFO L554 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 [2018-02-04 19:14:18,392 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 150 states. [2018-02-04 19:14:18,396 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 150 to 150. [2018-02-04 19:14:18,396 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 150 states. [2018-02-04 19:14:18,397 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 150 states to 150 states and 158 transitions. [2018-02-04 19:14:18,397 INFO L78 Accepts]: Start accepts. Automaton has 150 states and 158 transitions. Word has length 34 [2018-02-04 19:14:18,397 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-04 19:14:18,397 INFO L432 AbstractCegarLoop]: Abstraction has 150 states and 158 transitions. [2018-02-04 19:14:18,397 INFO L433 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-02-04 19:14:18,398 INFO L276 IsEmpty]: Start isEmpty. Operand 150 states and 158 transitions. [2018-02-04 19:14:18,398 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2018-02-04 19:14:18,398 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 19:14:18,399 INFO L351 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] [2018-02-04 19:14:18,399 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]=== [2018-02-04 19:14:18,399 INFO L82 PathProgramCache]: Analyzing trace with hash -204456797, now seen corresponding path program 1 times [2018-02-04 19:14:18,399 INFO L213 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-02-04 19:14:18,399 INFO L67 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-02-04 19:14:18,400 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 19:14:18,400 INFO L109 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-02-04 19:14:18,400 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 19:14:18,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 19:14:18,413 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-04 19:14:18,464 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 19:14:18,464 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-02-04 19:14:18,465 INFO L213 onRefinementStrategy]: Switched to mode SMTINTERPOL_FP [2018-02-04 19:14:18,465 INFO L109 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-02-04 19:14:18,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 19:14:18,490 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-02-04 19:14:18,510 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 19:14:18,510 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-02-04 19:14:18,510 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 6 [2018-02-04 19:14:18,511 INFO L409 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-02-04 19:14:18,511 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-02-04 19:14:18,511 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-02-04 19:14:18,511 INFO L87 Difference]: Start difference. First operand 150 states and 158 transitions. Second operand 6 states. [2018-02-04 19:14:18,529 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-04 19:14:18,529 INFO L93 Difference]: Finished difference Result 153 states and 161 transitions. [2018-02-04 19:14:18,530 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-02-04 19:14:18,530 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 35 [2018-02-04 19:14:18,530 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-04 19:14:18,531 INFO L225 Difference]: With dead ends: 153 [2018-02-04 19:14:18,531 INFO L226 Difference]: Without dead ends: 151 [2018-02-04 19:14:18,531 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2018-02-04 19:14:18,532 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 151 states. [2018-02-04 19:14:18,544 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 151 to 151. [2018-02-04 19:14:18,545 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 151 states. [2018-02-04 19:14:18,545 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 151 states to 151 states and 159 transitions. [2018-02-04 19:14:18,546 INFO L78 Accepts]: Start accepts. Automaton has 151 states and 159 transitions. Word has length 35 [2018-02-04 19:14:18,546 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-04 19:14:18,546 INFO L432 AbstractCegarLoop]: Abstraction has 151 states and 159 transitions. [2018-02-04 19:14:18,546 INFO L433 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-02-04 19:14:18,546 INFO L276 IsEmpty]: Start isEmpty. Operand 151 states and 159 transitions. [2018-02-04 19:14:18,547 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2018-02-04 19:14:18,547 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 19:14:18,547 INFO L351 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, 1] [2018-02-04 19:14:18,547 INFO L371 AbstractCegarLoop]: === Iteration 8 === [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]=== [2018-02-04 19:14:18,548 INFO L82 PathProgramCache]: Analyzing trace with hash -1829139958, now seen corresponding path program 1 times [2018-02-04 19:14:18,548 INFO L213 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-02-04 19:14:18,548 INFO L67 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-02-04 19:14:18,549 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 19:14:18,549 INFO L109 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-02-04 19:14:18,549 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 19:14:18,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 19:14:18,560 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-04 19:14:18,641 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 19:14:18,641 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-02-04 19:14:18,641 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-02-04 19:14:18,641 INFO L409 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-02-04 19:14:18,642 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-02-04 19:14:18,642 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-02-04 19:14:18,642 INFO L87 Difference]: Start difference. First operand 151 states and 159 transitions. Second operand 7 states. [2018-02-04 19:14:18,664 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-04 19:14:18,664 INFO L93 Difference]: Finished difference Result 161 states and 169 transitions. [2018-02-04 19:14:18,664 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-02-04 19:14:18,664 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 36 [2018-02-04 19:14:18,665 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-04 19:14:18,665 INFO L225 Difference]: With dead ends: 161 [2018-02-04 19:14:18,665 INFO L226 Difference]: Without dead ends: 161 [2018-02-04 19:14:18,666 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2018-02-04 19:14:18,666 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 161 states. [2018-02-04 19:14:18,669 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 161 to 157. [2018-02-04 19:14:18,669 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 157 states. [2018-02-04 19:14:18,670 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 157 states to 157 states and 165 transitions. [2018-02-04 19:14:18,670 INFO L78 Accepts]: Start accepts. Automaton has 157 states and 165 transitions. Word has length 36 [2018-02-04 19:14:18,670 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-04 19:14:18,670 INFO L432 AbstractCegarLoop]: Abstraction has 157 states and 165 transitions. [2018-02-04 19:14:18,670 INFO L433 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-02-04 19:14:18,670 INFO L276 IsEmpty]: Start isEmpty. Operand 157 states and 165 transitions. [2018-02-04 19:14:18,671 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2018-02-04 19:14:18,671 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 19:14:18,671 INFO L351 BasicCegarLoop]: trace histogram [2, 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] [2018-02-04 19:14:18,672 INFO L371 AbstractCegarLoop]: === Iteration 9 === [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]=== [2018-02-04 19:14:18,672 INFO L82 PathProgramCache]: Analyzing trace with hash 371943704, now seen corresponding path program 2 times [2018-02-04 19:14:18,672 INFO L213 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-02-04 19:14:18,672 INFO L67 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-02-04 19:14:18,673 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 19:14:18,673 INFO L109 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-02-04 19:14:18,673 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 19:14:18,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 19:14:18,688 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-04 19:14:18,725 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 19:14:18,726 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-02-04 19:14:18,726 INFO L213 onRefinementStrategy]: Switched to mode SMTINTERPOL_FP [2018-02-04 19:14:18,726 INFO L109 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-02-04 19:14:18,746 INFO L242 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2018-02-04 19:14:18,746 INFO L243 tOrderPrioritization]: Conjunction of SSA is unsat [2018-02-04 19:14:18,750 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-02-04 19:14:18,779 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 16 [2018-02-04 19:14:18,780 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-02-04 19:14:18,797 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 19 [2018-02-04 19:14:18,797 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-02-04 19:14:18,810 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-02-04 19:14:18,811 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:38, output treesize:36 [2018-02-04 19:14:19,019 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2018-02-04 19:14:19,020 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-02-04 19:14:19,020 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [15] imperfect sequences [6] total 20 [2018-02-04 19:14:19,020 INFO L409 AbstractCegarLoop]: Interpolant automaton has 20 states [2018-02-04 19:14:19,020 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2018-02-04 19:14:19,020 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=329, Unknown=0, NotChecked=0, Total=380 [2018-02-04 19:14:19,021 INFO L87 Difference]: Start difference. First operand 157 states and 165 transitions. Second operand 20 states. [2018-02-04 19:14:19,574 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-04 19:14:19,574 INFO L93 Difference]: Finished difference Result 178 states and 185 transitions. [2018-02-04 19:14:19,574 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2018-02-04 19:14:19,575 INFO L78 Accepts]: Start accepts. Automaton has 20 states. Word has length 36 [2018-02-04 19:14:19,575 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-04 19:14:19,575 INFO L225 Difference]: With dead ends: 178 [2018-02-04 19:14:19,575 INFO L226 Difference]: Without dead ends: 176 [2018-02-04 19:14:19,576 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 102 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=104, Invalid=708, Unknown=0, NotChecked=0, Total=812 [2018-02-04 19:14:19,576 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 176 states. [2018-02-04 19:14:19,579 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 176 to 157. [2018-02-04 19:14:19,579 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 157 states. [2018-02-04 19:14:19,580 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 157 states to 157 states and 165 transitions. [2018-02-04 19:14:19,580 INFO L78 Accepts]: Start accepts. Automaton has 157 states and 165 transitions. Word has length 36 [2018-02-04 19:14:19,580 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-04 19:14:19,581 INFO L432 AbstractCegarLoop]: Abstraction has 157 states and 165 transitions. [2018-02-04 19:14:19,581 INFO L433 AbstractCegarLoop]: Interpolant automaton has 20 states. [2018-02-04 19:14:19,581 INFO L276 IsEmpty]: Start isEmpty. Operand 157 states and 165 transitions. [2018-02-04 19:14:19,581 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2018-02-04 19:14:19,582 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 19:14:19,582 INFO L351 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] [2018-02-04 19:14:19,582 INFO L371 AbstractCegarLoop]: === Iteration 10 === [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]=== [2018-02-04 19:14:19,582 INFO L82 PathProgramCache]: Analyzing trace with hash -1983848104, now seen corresponding path program 1 times [2018-02-04 19:14:19,582 INFO L213 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-02-04 19:14:19,582 INFO L67 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-02-04 19:14:19,583 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 19:14:19,583 INFO L107 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-02-04 19:14:19,583 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 19:14:19,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 19:14:19,589 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-04 19:14:19,606 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 19:14:19,607 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-02-04 19:14:19,607 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-02-04 19:14:19,607 INFO L409 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-02-04 19:14:19,607 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-02-04 19:14:19,608 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-02-04 19:14:19,608 INFO L87 Difference]: Start difference. First operand 157 states and 165 transitions. Second operand 3 states. [2018-02-04 19:14:19,690 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-04 19:14:19,691 INFO L93 Difference]: Finished difference Result 174 states and 183 transitions. [2018-02-04 19:14:19,691 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-02-04 19:14:19,691 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 34 [2018-02-04 19:14:19,691 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-04 19:14:19,692 INFO L225 Difference]: With dead ends: 174 [2018-02-04 19:14:19,692 INFO L226 Difference]: Without dead ends: 161 [2018-02-04 19:14:19,692 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-02-04 19:14:19,692 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 161 states. [2018-02-04 19:14:19,696 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 161 to 153. [2018-02-04 19:14:19,696 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 153 states. [2018-02-04 19:14:19,697 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 153 states to 153 states and 160 transitions. [2018-02-04 19:14:19,697 INFO L78 Accepts]: Start accepts. Automaton has 153 states and 160 transitions. Word has length 34 [2018-02-04 19:14:19,697 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-04 19:14:19,697 INFO L432 AbstractCegarLoop]: Abstraction has 153 states and 160 transitions. [2018-02-04 19:14:19,697 INFO L433 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-02-04 19:14:19,697 INFO L276 IsEmpty]: Start isEmpty. Operand 153 states and 160 transitions. [2018-02-04 19:14:19,698 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2018-02-04 19:14:19,698 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 19:14:19,698 INFO L351 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, 1] [2018-02-04 19:14:19,698 INFO L371 AbstractCegarLoop]: === Iteration 11 === [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]=== [2018-02-04 19:14:19,698 INFO L82 PathProgramCache]: Analyzing trace with hash 515535126, now seen corresponding path program 1 times [2018-02-04 19:14:19,698 INFO L213 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-02-04 19:14:19,698 INFO L67 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-02-04 19:14:19,699 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 19:14:19,699 INFO L109 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-02-04 19:14:19,699 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 19:14:19,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 19:14:19,704 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-04 19:14:19,730 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 19:14:19,730 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-02-04 19:14:19,731 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-02-04 19:14:19,731 INFO L409 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-02-04 19:14:19,731 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-02-04 19:14:19,731 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-02-04 19:14:19,731 INFO L87 Difference]: Start difference. First operand 153 states and 160 transitions. Second operand 6 states. [2018-02-04 19:14:19,746 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-04 19:14:19,746 INFO L93 Difference]: Finished difference Result 138 states and 144 transitions. [2018-02-04 19:14:19,747 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-02-04 19:14:19,747 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 36 [2018-02-04 19:14:19,747 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-04 19:14:19,748 INFO L225 Difference]: With dead ends: 138 [2018-02-04 19:14:19,748 INFO L226 Difference]: Without dead ends: 138 [2018-02-04 19:14:19,748 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2018-02-04 19:14:19,748 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 138 states. [2018-02-04 19:14:19,751 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 138 to 138. [2018-02-04 19:14:19,751 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 138 states. [2018-02-04 19:14:19,751 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 138 states to 138 states and 144 transitions. [2018-02-04 19:14:19,752 INFO L78 Accepts]: Start accepts. Automaton has 138 states and 144 transitions. Word has length 36 [2018-02-04 19:14:19,752 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-04 19:14:19,752 INFO L432 AbstractCegarLoop]: Abstraction has 138 states and 144 transitions. [2018-02-04 19:14:19,752 INFO L433 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-02-04 19:14:19,752 INFO L276 IsEmpty]: Start isEmpty. Operand 138 states and 144 transitions. [2018-02-04 19:14:19,752 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2018-02-04 19:14:19,753 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 19:14:19,753 INFO L351 BasicCegarLoop]: trace histogram [3, 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, 1, 1, 1, 1] [2018-02-04 19:14:19,753 INFO L371 AbstractCegarLoop]: === Iteration 12 === [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]=== [2018-02-04 19:14:19,753 INFO L82 PathProgramCache]: Analyzing trace with hash -723967063, now seen corresponding path program 1 times [2018-02-04 19:14:19,753 INFO L213 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-02-04 19:14:19,753 INFO L67 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-02-04 19:14:19,754 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 19:14:19,754 INFO L109 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-02-04 19:14:19,754 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 19:14:19,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 19:14:19,764 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-04 19:14:19,825 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2018-02-04 19:14:19,825 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-02-04 19:14:19,825 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2018-02-04 19:14:19,826 INFO L409 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-02-04 19:14:19,826 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-02-04 19:14:19,826 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2018-02-04 19:14:19,826 INFO L87 Difference]: Start difference. First operand 138 states and 144 transitions. Second operand 10 states. [2018-02-04 19:14:19,995 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-04 19:14:19,995 INFO L93 Difference]: Finished difference Result 136 states and 142 transitions. [2018-02-04 19:14:19,995 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-02-04 19:14:19,995 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 42 [2018-02-04 19:14:19,996 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-04 19:14:19,996 INFO L225 Difference]: With dead ends: 136 [2018-02-04 19:14:19,996 INFO L226 Difference]: Without dead ends: 136 [2018-02-04 19:14:19,997 INFO L554 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 [2018-02-04 19:14:19,997 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 136 states. [2018-02-04 19:14:19,999 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 136 to 136. [2018-02-04 19:14:19,999 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 136 states. [2018-02-04 19:14:20,000 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 136 states to 136 states and 142 transitions. [2018-02-04 19:14:20,000 INFO L78 Accepts]: Start accepts. Automaton has 136 states and 142 transitions. Word has length 42 [2018-02-04 19:14:20,000 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-04 19:14:20,000 INFO L432 AbstractCegarLoop]: Abstraction has 136 states and 142 transitions. [2018-02-04 19:14:20,000 INFO L433 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-02-04 19:14:20,001 INFO L276 IsEmpty]: Start isEmpty. Operand 136 states and 142 transitions. [2018-02-04 19:14:20,003 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2018-02-04 19:14:20,003 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 19:14:20,003 INFO L351 BasicCegarLoop]: trace histogram [3, 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, 1, 1, 1, 1] [2018-02-04 19:14:20,003 INFO L371 AbstractCegarLoop]: === Iteration 13 === [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]=== [2018-02-04 19:14:20,003 INFO L82 PathProgramCache]: Analyzing trace with hash -723967062, now seen corresponding path program 1 times [2018-02-04 19:14:20,004 INFO L213 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-02-04 19:14:20,004 INFO L67 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-02-04 19:14:20,004 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 19:14:20,005 INFO L109 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-02-04 19:14:20,005 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 19:14:20,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 19:14:20,015 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-04 19:14:20,054 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 19:14:20,054 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-02-04 19:14:20,055 INFO L213 onRefinementStrategy]: Switched to mode SMTINTERPOL_FP [2018-02-04 19:14:20,055 INFO L109 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-02-04 19:14:20,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 19:14:20,072 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-02-04 19:14:20,081 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 19:14:20,081 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-02-04 19:14:20,082 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 8 [2018-02-04 19:14:20,082 INFO L409 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-02-04 19:14:20,082 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-02-04 19:14:20,082 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2018-02-04 19:14:20,083 INFO L87 Difference]: Start difference. First operand 136 states and 142 transitions. Second operand 8 states. [2018-02-04 19:14:20,106 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-04 19:14:20,107 INFO L93 Difference]: Finished difference Result 139 states and 145 transitions. [2018-02-04 19:14:20,107 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-02-04 19:14:20,107 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 42 [2018-02-04 19:14:20,107 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-04 19:14:20,108 INFO L225 Difference]: With dead ends: 139 [2018-02-04 19:14:20,108 INFO L226 Difference]: Without dead ends: 137 [2018-02-04 19:14:20,108 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-02-04 19:14:20,108 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 137 states. [2018-02-04 19:14:20,110 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 137 to 137. [2018-02-04 19:14:20,110 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 137 states. [2018-02-04 19:14:20,111 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 137 states to 137 states and 143 transitions. [2018-02-04 19:14:20,111 INFO L78 Accepts]: Start accepts. Automaton has 137 states and 143 transitions. Word has length 42 [2018-02-04 19:14:20,111 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-04 19:14:20,112 INFO L432 AbstractCegarLoop]: Abstraction has 137 states and 143 transitions. [2018-02-04 19:14:20,112 INFO L433 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-02-04 19:14:20,112 INFO L276 IsEmpty]: Start isEmpty. Operand 137 states and 143 transitions. [2018-02-04 19:14:20,112 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2018-02-04 19:14:20,112 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 19:14:20,112 INFO L351 BasicCegarLoop]: trace histogram [4, 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, 1, 1, 1, 1] [2018-02-04 19:14:20,112 INFO L371 AbstractCegarLoop]: === Iteration 14 === [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]=== [2018-02-04 19:14:20,113 INFO L82 PathProgramCache]: Analyzing trace with hash -1816266347, now seen corresponding path program 2 times [2018-02-04 19:14:20,113 INFO L213 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-02-04 19:14:20,113 INFO L67 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-02-04 19:14:20,114 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 19:14:20,114 INFO L109 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-02-04 19:14:20,114 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 19:14:20,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 19:14:20,124 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-04 19:14:20,171 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 19:14:20,171 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-02-04 19:14:20,171 INFO L213 onRefinementStrategy]: Switched to mode SMTINTERPOL_FP [2018-02-04 19:14:20,172 INFO L109 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-02-04 19:14:20,188 INFO L242 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2018-02-04 19:14:20,188 INFO L243 tOrderPrioritization]: Conjunction of SSA is unsat [2018-02-04 19:14:20,191 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-02-04 19:14:20,202 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 16 [2018-02-04 19:14:20,202 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-02-04 19:14:20,219 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 19 [2018-02-04 19:14:20,220 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-02-04 19:14:20,232 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-02-04 19:14:20,232 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:38, output treesize:36 [2018-02-04 19:14:20,436 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2018-02-04 19:14:20,437 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-02-04 19:14:20,437 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [15] imperfect sequences [8] total 22 [2018-02-04 19:14:20,437 INFO L409 AbstractCegarLoop]: Interpolant automaton has 22 states [2018-02-04 19:14:20,437 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2018-02-04 19:14:20,437 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=400, Unknown=0, NotChecked=0, Total=462 [2018-02-04 19:14:20,437 INFO L87 Difference]: Start difference. First operand 137 states and 143 transitions. Second operand 22 states. [2018-02-04 19:14:20,990 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-04 19:14:20,990 INFO L93 Difference]: Finished difference Result 138 states and 144 transitions. [2018-02-04 19:14:20,990 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2018-02-04 19:14:20,990 INFO L78 Accepts]: Start accepts. Automaton has 22 states. Word has length 43 [2018-02-04 19:14:20,990 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-04 19:14:20,991 INFO L225 Difference]: With dead ends: 138 [2018-02-04 19:14:20,991 INFO L226 Difference]: Without dead ends: 136 [2018-02-04 19:14:20,991 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 28 SyntacticMatches, 2 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 170 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=139, Invalid=917, Unknown=0, NotChecked=0, Total=1056 [2018-02-04 19:14:20,992 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 136 states. [2018-02-04 19:14:20,994 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 136 to 136. [2018-02-04 19:14:20,994 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 136 states. [2018-02-04 19:14:20,995 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 136 states to 136 states and 142 transitions. [2018-02-04 19:14:20,995 INFO L78 Accepts]: Start accepts. Automaton has 136 states and 142 transitions. Word has length 43 [2018-02-04 19:14:20,995 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-04 19:14:20,995 INFO L432 AbstractCegarLoop]: Abstraction has 136 states and 142 transitions. [2018-02-04 19:14:20,996 INFO L433 AbstractCegarLoop]: Interpolant automaton has 22 states. [2018-02-04 19:14:20,996 INFO L276 IsEmpty]: Start isEmpty. Operand 136 states and 142 transitions. [2018-02-04 19:14:20,996 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2018-02-04 19:14:20,996 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 19:14:20,996 INFO L351 BasicCegarLoop]: trace histogram [5, 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, 1, 1, 1, 1, 1, 1, 1] [2018-02-04 19:14:20,996 INFO L371 AbstractCegarLoop]: === Iteration 15 === [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]=== [2018-02-04 19:14:20,997 INFO L82 PathProgramCache]: Analyzing trace with hash -2123180192, now seen corresponding path program 1 times [2018-02-04 19:14:20,997 INFO L213 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-02-04 19:14:20,997 INFO L67 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-02-04 19:14:20,998 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 19:14:20,998 INFO L107 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-02-04 19:14:20,998 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 19:14:21,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 19:14:21,007 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-04 19:14:21,047 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2018-02-04 19:14:21,047 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-02-04 19:14:21,047 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2018-02-04 19:14:21,048 INFO L409 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-02-04 19:14:21,048 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-02-04 19:14:21,048 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2018-02-04 19:14:21,048 INFO L87 Difference]: Start difference. First operand 136 states and 142 transitions. Second operand 8 states. [2018-02-04 19:14:21,070 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-04 19:14:21,070 INFO L93 Difference]: Finished difference Result 138 states and 143 transitions. [2018-02-04 19:14:21,070 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-02-04 19:14:21,070 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 47 [2018-02-04 19:14:21,071 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-04 19:14:21,071 INFO L225 Difference]: With dead ends: 138 [2018-02-04 19:14:21,071 INFO L226 Difference]: Without dead ends: 136 [2018-02-04 19:14:21,071 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2018-02-04 19:14:21,071 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 136 states. [2018-02-04 19:14:21,073 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 136 to 136. [2018-02-04 19:14:21,073 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 136 states. [2018-02-04 19:14:21,074 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 136 states to 136 states and 141 transitions. [2018-02-04 19:14:21,074 INFO L78 Accepts]: Start accepts. Automaton has 136 states and 141 transitions. Word has length 47 [2018-02-04 19:14:21,074 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-04 19:14:21,074 INFO L432 AbstractCegarLoop]: Abstraction has 136 states and 141 transitions. [2018-02-04 19:14:21,074 INFO L433 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-02-04 19:14:21,074 INFO L276 IsEmpty]: Start isEmpty. Operand 136 states and 141 transitions. [2018-02-04 19:14:21,075 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2018-02-04 19:14:21,075 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 19:14:21,075 INFO L351 BasicCegarLoop]: trace histogram [5, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-04 19:14:21,075 INFO L371 AbstractCegarLoop]: === Iteration 16 === [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]=== [2018-02-04 19:14:21,075 INFO L82 PathProgramCache]: Analyzing trace with hash -1684319326, now seen corresponding path program 1 times [2018-02-04 19:14:21,076 INFO L213 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-02-04 19:14:21,076 INFO L67 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-02-04 19:14:21,076 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 19:14:21,077 INFO L109 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-02-04 19:14:21,077 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 19:14:21,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 19:14:21,085 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-04 19:14:21,137 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2018-02-04 19:14:21,137 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-02-04 19:14:21,137 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2018-02-04 19:14:21,137 INFO L409 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-02-04 19:14:21,137 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-02-04 19:14:21,137 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2018-02-04 19:14:21,137 INFO L87 Difference]: Start difference. First operand 136 states and 141 transitions. Second operand 10 states. [2018-02-04 19:14:21,174 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-04 19:14:21,174 INFO L93 Difference]: Finished difference Result 140 states and 144 transitions. [2018-02-04 19:14:21,174 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-02-04 19:14:21,174 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 52 [2018-02-04 19:14:21,175 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-04 19:14:21,175 INFO L225 Difference]: With dead ends: 140 [2018-02-04 19:14:21,175 INFO L226 Difference]: Without dead ends: 136 [2018-02-04 19:14:21,176 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=127, Unknown=0, NotChecked=0, Total=156 [2018-02-04 19:14:21,176 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 136 states. [2018-02-04 19:14:21,177 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 136 to 136. [2018-02-04 19:14:21,177 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 136 states. [2018-02-04 19:14:21,178 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 136 states to 136 states and 140 transitions. [2018-02-04 19:14:21,178 INFO L78 Accepts]: Start accepts. Automaton has 136 states and 140 transitions. Word has length 52 [2018-02-04 19:14:21,178 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-04 19:14:21,178 INFO L432 AbstractCegarLoop]: Abstraction has 136 states and 140 transitions. [2018-02-04 19:14:21,178 INFO L433 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-02-04 19:14:21,178 INFO L276 IsEmpty]: Start isEmpty. Operand 136 states and 140 transitions. [2018-02-04 19:14:21,178 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2018-02-04 19:14:21,183 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 19:14:21,183 INFO L351 BasicCegarLoop]: trace histogram [5, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-04 19:14:21,183 INFO L371 AbstractCegarLoop]: === Iteration 17 === [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]=== [2018-02-04 19:14:21,183 INFO L82 PathProgramCache]: Analyzing trace with hash 1703813979, now seen corresponding path program 1 times [2018-02-04 19:14:21,183 INFO L213 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-02-04 19:14:21,183 INFO L67 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-02-04 19:14:21,184 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 19:14:21,184 INFO L109 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-02-04 19:14:21,184 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 19:14:21,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 19:14:21,195 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-04 19:14:21,297 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2018-02-04 19:14:21,297 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-02-04 19:14:21,298 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2018-02-04 19:14:21,298 INFO L409 AbstractCegarLoop]: Interpolant automaton has 13 states [2018-02-04 19:14:21,298 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2018-02-04 19:14:21,298 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=133, Unknown=0, NotChecked=0, Total=156 [2018-02-04 19:14:21,299 INFO L87 Difference]: Start difference. First operand 136 states and 140 transitions. Second operand 13 states. [2018-02-04 19:14:21,533 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-04 19:14:21,533 INFO L93 Difference]: Finished difference Result 134 states and 138 transitions. [2018-02-04 19:14:21,533 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2018-02-04 19:14:21,533 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 63 [2018-02-04 19:14:21,534 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-04 19:14:21,534 INFO L225 Difference]: With dead ends: 134 [2018-02-04 19:14:21,534 INFO L226 Difference]: Without dead ends: 134 [2018-02-04 19:14:21,535 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=233, Unknown=0, NotChecked=0, Total=272 [2018-02-04 19:14:21,535 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 134 states. [2018-02-04 19:14:21,537 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 134 to 134. [2018-02-04 19:14:21,537 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 134 states. [2018-02-04 19:14:21,537 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 134 states to 134 states and 138 transitions. [2018-02-04 19:14:21,538 INFO L78 Accepts]: Start accepts. Automaton has 134 states and 138 transitions. Word has length 63 [2018-02-04 19:14:21,538 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-04 19:14:21,538 INFO L432 AbstractCegarLoop]: Abstraction has 134 states and 138 transitions. [2018-02-04 19:14:21,538 INFO L433 AbstractCegarLoop]: Interpolant automaton has 13 states. [2018-02-04 19:14:21,538 INFO L276 IsEmpty]: Start isEmpty. Operand 134 states and 138 transitions. [2018-02-04 19:14:21,539 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2018-02-04 19:14:21,539 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 19:14:21,539 INFO L351 BasicCegarLoop]: trace histogram [5, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-04 19:14:21,539 INFO L371 AbstractCegarLoop]: === Iteration 18 === [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]=== [2018-02-04 19:14:21,540 INFO L82 PathProgramCache]: Analyzing trace with hash 1703813980, now seen corresponding path program 1 times [2018-02-04 19:14:21,540 INFO L213 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-02-04 19:14:21,540 INFO L67 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-02-04 19:14:21,540 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 19:14:21,541 INFO L109 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-02-04 19:14:21,541 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 19:14:21,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 19:14:21,552 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-04 19:14:21,601 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 19:14:21,601 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-02-04 19:14:21,601 INFO L213 onRefinementStrategy]: Switched to mode SMTINTERPOL_FP [2018-02-04 19:14:21,602 INFO L109 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-02-04 19:14:21,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 19:14:21,622 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-02-04 19:14:21,639 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 19:14:21,639 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-02-04 19:14:21,639 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 10 [2018-02-04 19:14:21,639 INFO L409 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-02-04 19:14:21,639 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-02-04 19:14:21,640 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2018-02-04 19:14:21,640 INFO L87 Difference]: Start difference. First operand 134 states and 138 transitions. Second operand 10 states. [2018-02-04 19:14:21,659 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-04 19:14:21,660 INFO L93 Difference]: Finished difference Result 137 states and 141 transitions. [2018-02-04 19:14:21,660 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-02-04 19:14:21,660 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 63 [2018-02-04 19:14:21,660 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-04 19:14:21,660 INFO L225 Difference]: With dead ends: 137 [2018-02-04 19:14:21,660 INFO L226 Difference]: Without dead ends: 135 [2018-02-04 19:14:21,661 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 63 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=42, Invalid=68, Unknown=0, NotChecked=0, Total=110 [2018-02-04 19:14:21,661 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 135 states. [2018-02-04 19:14:21,663 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 135 to 135. [2018-02-04 19:14:21,663 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 135 states. [2018-02-04 19:14:21,664 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 135 states to 135 states and 139 transitions. [2018-02-04 19:14:21,664 INFO L78 Accepts]: Start accepts. Automaton has 135 states and 139 transitions. Word has length 63 [2018-02-04 19:14:21,664 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-04 19:14:21,664 INFO L432 AbstractCegarLoop]: Abstraction has 135 states and 139 transitions. [2018-02-04 19:14:21,664 INFO L433 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-02-04 19:14:21,664 INFO L276 IsEmpty]: Start isEmpty. Operand 135 states and 139 transitions. [2018-02-04 19:14:21,665 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2018-02-04 19:14:21,665 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 19:14:21,665 INFO L351 BasicCegarLoop]: trace histogram [6, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-04 19:14:21,665 INFO L371 AbstractCegarLoop]: === Iteration 19 === [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]=== [2018-02-04 19:14:21,665 INFO L82 PathProgramCache]: Analyzing trace with hash 1580383825, now seen corresponding path program 2 times [2018-02-04 19:14:21,666 INFO L213 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-02-04 19:14:21,666 INFO L67 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-02-04 19:14:21,667 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 19:14:21,667 INFO L109 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-02-04 19:14:21,667 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 19:14:21,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 19:14:21,679 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-04 19:14:21,733 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 19:14:21,733 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-02-04 19:14:21,734 INFO L213 onRefinementStrategy]: Switched to mode SMTINTERPOL_FP [2018-02-04 19:14:21,734 INFO L109 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-02-04 19:14:21,766 INFO L242 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2018-02-04 19:14:21,766 INFO L243 tOrderPrioritization]: Conjunction of SSA is unsat [2018-02-04 19:14:21,771 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-02-04 19:14:21,781 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 19 [2018-02-04 19:14:21,782 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-02-04 19:14:21,794 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 16 [2018-02-04 19:14:21,794 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-02-04 19:14:21,804 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-02-04 19:14:21,805 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:38, output treesize:36 [2018-02-04 19:14:22,129 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2018-02-04 19:14:22,129 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-02-04 19:14:22,129 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [18] imperfect sequences [10] total 27 [2018-02-04 19:14:22,130 INFO L409 AbstractCegarLoop]: Interpolant automaton has 27 states [2018-02-04 19:14:22,130 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2018-02-04 19:14:22,130 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=86, Invalid=616, Unknown=0, NotChecked=0, Total=702 [2018-02-04 19:14:22,131 INFO L87 Difference]: Start difference. First operand 135 states and 139 transitions. Second operand 27 states. [2018-02-04 19:14:22,773 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-04 19:14:22,773 INFO L93 Difference]: Finished difference Result 136 states and 140 transitions. [2018-02-04 19:14:22,773 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2018-02-04 19:14:22,773 INFO L78 Accepts]: Start accepts. Automaton has 27 states. Word has length 64 [2018-02-04 19:14:22,773 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-04 19:14:22,774 INFO L225 Difference]: With dead ends: 136 [2018-02-04 19:14:22,774 INFO L226 Difference]: Without dead ends: 134 [2018-02-04 19:14:22,774 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 87 GetRequests, 47 SyntacticMatches, 1 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 260 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=201, Invalid=1439, Unknown=0, NotChecked=0, Total=1640 [2018-02-04 19:14:22,775 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 134 states. [2018-02-04 19:14:22,776 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 134 to 134. [2018-02-04 19:14:22,777 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 134 states. [2018-02-04 19:14:22,777 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 134 states to 134 states and 138 transitions. [2018-02-04 19:14:22,777 INFO L78 Accepts]: Start accepts. Automaton has 134 states and 138 transitions. Word has length 64 [2018-02-04 19:14:22,777 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-04 19:14:22,778 INFO L432 AbstractCegarLoop]: Abstraction has 134 states and 138 transitions. [2018-02-04 19:14:22,778 INFO L433 AbstractCegarLoop]: Interpolant automaton has 27 states. [2018-02-04 19:14:22,778 INFO L276 IsEmpty]: Start isEmpty. Operand 134 states and 138 transitions. [2018-02-04 19:14:22,778 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2018-02-04 19:14:22,778 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 19:14:22,779 INFO L351 BasicCegarLoop]: trace histogram [7, 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, 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] [2018-02-04 19:14:22,779 INFO L371 AbstractCegarLoop]: === Iteration 20 === [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]=== [2018-02-04 19:14:22,779 INFO L82 PathProgramCache]: Analyzing trace with hash -1086612526, now seen corresponding path program 1 times [2018-02-04 19:14:22,779 INFO L213 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-02-04 19:14:22,779 INFO L67 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-02-04 19:14:22,780 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 19:14:22,780 INFO L107 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-02-04 19:14:22,780 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 19:14:22,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 19:14:22,792 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-04 19:14:22,840 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2018-02-04 19:14:22,841 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-02-04 19:14:22,841 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2018-02-04 19:14:22,841 INFO L409 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-02-04 19:14:22,841 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-02-04 19:14:22,841 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2018-02-04 19:14:22,841 INFO L87 Difference]: Start difference. First operand 134 states and 138 transitions. Second operand 11 states. [2018-02-04 19:14:22,911 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-04 19:14:22,912 INFO L93 Difference]: Finished difference Result 137 states and 140 transitions. [2018-02-04 19:14:22,912 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-02-04 19:14:22,912 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 74 [2018-02-04 19:14:22,912 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-04 19:14:22,913 INFO L225 Difference]: With dead ends: 137 [2018-02-04 19:14:22,913 INFO L226 Difference]: Without dead ends: 134 [2018-02-04 19:14:22,913 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=31, Invalid=151, Unknown=0, NotChecked=0, Total=182 [2018-02-04 19:14:22,913 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 134 states. [2018-02-04 19:14:22,915 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 134 to 134. [2018-02-04 19:14:22,915 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 134 states. [2018-02-04 19:14:22,915 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 134 states to 134 states and 137 transitions. [2018-02-04 19:14:22,915 INFO L78 Accepts]: Start accepts. Automaton has 134 states and 137 transitions. Word has length 74 [2018-02-04 19:14:22,916 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-04 19:14:22,916 INFO L432 AbstractCegarLoop]: Abstraction has 134 states and 137 transitions. [2018-02-04 19:14:22,916 INFO L433 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-02-04 19:14:22,916 INFO L276 IsEmpty]: Start isEmpty. Operand 134 states and 137 transitions. [2018-02-04 19:14:22,916 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2018-02-04 19:14:22,916 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 19:14:22,916 INFO L351 BasicCegarLoop]: trace histogram [7, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-04 19:14:22,916 INFO L371 AbstractCegarLoop]: === Iteration 21 === [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]=== [2018-02-04 19:14:22,916 INFO L82 PathProgramCache]: Analyzing trace with hash 27384906, now seen corresponding path program 1 times [2018-02-04 19:14:22,917 INFO L213 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-02-04 19:14:22,917 INFO L67 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-02-04 19:14:22,917 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 19:14:22,917 INFO L109 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-02-04 19:14:22,917 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 19:14:22,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 19:14:22,927 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-04 19:14:23,073 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2018-02-04 19:14:23,073 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-02-04 19:14:23,073 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2018-02-04 19:14:23,074 INFO L409 AbstractCegarLoop]: Interpolant automaton has 18 states [2018-02-04 19:14:23,074 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2018-02-04 19:14:23,074 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=271, Unknown=0, NotChecked=0, Total=306 [2018-02-04 19:14:23,074 INFO L87 Difference]: Start difference. First operand 134 states and 137 transitions. Second operand 18 states. [2018-02-04 19:14:23,378 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-04 19:14:23,378 INFO L93 Difference]: Finished difference Result 141 states and 144 transitions. [2018-02-04 19:14:23,378 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2018-02-04 19:14:23,379 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 87 [2018-02-04 19:14:23,379 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-04 19:14:23,379 INFO L225 Difference]: With dead ends: 141 [2018-02-04 19:14:23,379 INFO L226 Difference]: Without dead ends: 141 [2018-02-04 19:14:23,380 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=59, Invalid=493, Unknown=0, NotChecked=0, Total=552 [2018-02-04 19:14:23,380 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 141 states. [2018-02-04 19:14:23,382 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 141 to 132. [2018-02-04 19:14:23,382 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 132 states. [2018-02-04 19:14:23,383 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 132 states to 132 states and 135 transitions. [2018-02-04 19:14:23,383 INFO L78 Accepts]: Start accepts. Automaton has 132 states and 135 transitions. Word has length 87 [2018-02-04 19:14:23,383 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-04 19:14:23,384 INFO L432 AbstractCegarLoop]: Abstraction has 132 states and 135 transitions. [2018-02-04 19:14:23,384 INFO L433 AbstractCegarLoop]: Interpolant automaton has 18 states. [2018-02-04 19:14:23,384 INFO L276 IsEmpty]: Start isEmpty. Operand 132 states and 135 transitions. [2018-02-04 19:14:23,384 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2018-02-04 19:14:23,384 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 19:14:23,385 INFO L351 BasicCegarLoop]: trace histogram [7, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-04 19:14:23,385 INFO L371 AbstractCegarLoop]: === Iteration 22 === [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]=== [2018-02-04 19:14:23,385 INFO L82 PathProgramCache]: Analyzing trace with hash 27384907, now seen corresponding path program 1 times [2018-02-04 19:14:23,385 INFO L213 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-02-04 19:14:23,385 INFO L67 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-02-04 19:14:23,386 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 19:14:23,386 INFO L109 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-02-04 19:14:23,386 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 19:14:23,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 19:14:23,406 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-04 19:14:23,509 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 19:14:23,509 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-02-04 19:14:23,509 INFO L213 onRefinementStrategy]: Switched to mode SMTINTERPOL_FP [2018-02-04 19:14:23,510 INFO L109 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-02-04 19:14:23,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 19:14:23,534 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-02-04 19:14:23,549 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 19:14:23,550 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-02-04 19:14:23,550 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 12 [2018-02-04 19:14:23,550 INFO L409 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-02-04 19:14:23,551 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-02-04 19:14:23,551 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2018-02-04 19:14:23,551 INFO L87 Difference]: Start difference. First operand 132 states and 135 transitions. Second operand 12 states. [2018-02-04 19:14:23,579 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-04 19:14:23,579 INFO L93 Difference]: Finished difference Result 135 states and 138 transitions. [2018-02-04 19:14:23,581 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-02-04 19:14:23,581 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 87 [2018-02-04 19:14:23,581 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-04 19:14:23,581 INFO L225 Difference]: With dead ends: 135 [2018-02-04 19:14:23,582 INFO L226 Difference]: Without dead ends: 133 [2018-02-04 19:14:23,582 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 98 GetRequests, 87 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=61, Invalid=95, Unknown=0, NotChecked=0, Total=156 [2018-02-04 19:14:23,582 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 133 states. [2018-02-04 19:14:23,583 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 133 to 133. [2018-02-04 19:14:23,583 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 133 states. [2018-02-04 19:14:23,584 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 133 states to 133 states and 136 transitions. [2018-02-04 19:14:23,584 INFO L78 Accepts]: Start accepts. Automaton has 133 states and 136 transitions. Word has length 87 [2018-02-04 19:14:23,584 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-04 19:14:23,584 INFO L432 AbstractCegarLoop]: Abstraction has 133 states and 136 transitions. [2018-02-04 19:14:23,585 INFO L433 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-02-04 19:14:23,585 INFO L276 IsEmpty]: Start isEmpty. Operand 133 states and 136 transitions. [2018-02-04 19:14:23,585 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2018-02-04 19:14:23,585 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 19:14:23,585 INFO L351 BasicCegarLoop]: trace histogram [8, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-04 19:14:23,586 INFO L371 AbstractCegarLoop]: === Iteration 23 === [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]=== [2018-02-04 19:14:23,586 INFO L82 PathProgramCache]: Analyzing trace with hash -556652480, now seen corresponding path program 2 times [2018-02-04 19:14:23,586 INFO L213 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-02-04 19:14:23,586 INFO L67 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-02-04 19:14:23,587 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 19:14:23,587 INFO L109 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-02-04 19:14:23,587 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 19:14:23,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 19:14:23,604 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-04 19:14:23,704 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 19:14:23,704 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-02-04 19:14:23,704 INFO L213 onRefinementStrategy]: Switched to mode SMTINTERPOL_FP [2018-02-04 19:14:23,705 INFO L109 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-02-04 19:14:23,729 INFO L242 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2018-02-04 19:14:23,729 INFO L243 tOrderPrioritization]: Conjunction of SSA is unsat [2018-02-04 19:14:23,735 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-02-04 19:14:23,750 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 16 [2018-02-04 19:14:23,750 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-02-04 19:14:23,762 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 19 [2018-02-04 19:14:23,762 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-02-04 19:14:23,771 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-02-04 19:14:23,771 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:38, output treesize:36 [2018-02-04 19:14:24,152 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2018-02-04 19:14:24,152 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-02-04 19:14:24,152 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [20] imperfect sequences [12] total 31 [2018-02-04 19:14:24,153 INFO L409 AbstractCegarLoop]: Interpolant automaton has 31 states [2018-02-04 19:14:24,153 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2018-02-04 19:14:24,153 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=111, Invalid=819, Unknown=0, NotChecked=0, Total=930 [2018-02-04 19:14:24,153 INFO L87 Difference]: Start difference. First operand 133 states and 136 transitions. Second operand 31 states. [2018-02-04 19:14:24,887 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-04 19:14:24,887 INFO L93 Difference]: Finished difference Result 134 states and 137 transitions. [2018-02-04 19:14:24,887 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2018-02-04 19:14:24,887 INFO L78 Accepts]: Start accepts. Automaton has 31 states. Word has length 88 [2018-02-04 19:14:24,887 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-04 19:14:24,888 INFO L225 Difference]: With dead ends: 134 [2018-02-04 19:14:24,888 INFO L226 Difference]: Without dead ends: 132 [2018-02-04 19:14:24,888 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 116 GetRequests, 67 SyntacticMatches, 3 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 394 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=271, Invalid=1985, Unknown=0, NotChecked=0, Total=2256 [2018-02-04 19:14:24,888 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 132 states. [2018-02-04 19:14:24,889 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 132 to 132. [2018-02-04 19:14:24,889 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 132 states. [2018-02-04 19:14:24,890 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 132 states to 132 states and 135 transitions. [2018-02-04 19:14:24,890 INFO L78 Accepts]: Start accepts. Automaton has 132 states and 135 transitions. Word has length 88 [2018-02-04 19:14:24,890 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-04 19:14:24,890 INFO L432 AbstractCegarLoop]: Abstraction has 132 states and 135 transitions. [2018-02-04 19:14:24,890 INFO L433 AbstractCegarLoop]: Interpolant automaton has 31 states. [2018-02-04 19:14:24,890 INFO L276 IsEmpty]: Start isEmpty. Operand 132 states and 135 transitions. [2018-02-04 19:14:24,891 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2018-02-04 19:14:24,891 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 19:14:24,891 INFO L351 BasicCegarLoop]: trace histogram [9, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-04 19:14:24,891 INFO L371 AbstractCegarLoop]: === Iteration 24 === [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]=== [2018-02-04 19:14:24,891 INFO L82 PathProgramCache]: Analyzing trace with hash -2005833160, now seen corresponding path program 1 times [2018-02-04 19:14:24,891 INFO L213 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-02-04 19:14:24,891 INFO L67 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-02-04 19:14:24,892 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 19:14:24,892 INFO L107 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-02-04 19:14:24,892 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 19:14:24,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 19:14:24,905 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-04 19:14:24,976 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2018-02-04 19:14:24,976 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-02-04 19:14:24,976 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2018-02-04 19:14:24,976 INFO L409 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-02-04 19:14:24,977 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-02-04 19:14:24,977 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2018-02-04 19:14:24,977 INFO L87 Difference]: Start difference. First operand 132 states and 135 transitions. Second operand 11 states. [2018-02-04 19:14:25,025 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-04 19:14:25,025 INFO L93 Difference]: Finished difference Result 134 states and 136 transitions. [2018-02-04 19:14:25,025 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-02-04 19:14:25,025 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 87 [2018-02-04 19:14:25,025 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-04 19:14:25,026 INFO L225 Difference]: With dead ends: 134 [2018-02-04 19:14:25,026 INFO L226 Difference]: Without dead ends: 132 [2018-02-04 19:14:25,026 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=31, Invalid=151, Unknown=0, NotChecked=0, Total=182 [2018-02-04 19:14:25,027 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 132 states. [2018-02-04 19:14:25,028 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 132 to 132. [2018-02-04 19:14:25,028 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 132 states. [2018-02-04 19:14:25,029 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 132 states to 132 states and 134 transitions. [2018-02-04 19:14:25,029 INFO L78 Accepts]: Start accepts. Automaton has 132 states and 134 transitions. Word has length 87 [2018-02-04 19:14:25,029 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-04 19:14:25,029 INFO L432 AbstractCegarLoop]: Abstraction has 132 states and 134 transitions. [2018-02-04 19:14:25,029 INFO L433 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-02-04 19:14:25,029 INFO L276 IsEmpty]: Start isEmpty. Operand 132 states and 134 transitions. [2018-02-04 19:14:25,030 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2018-02-04 19:14:25,030 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 19:14:25,030 INFO L351 BasicCegarLoop]: trace histogram [9, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-04 19:14:25,030 INFO L371 AbstractCegarLoop]: === Iteration 25 === [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]=== [2018-02-04 19:14:25,030 INFO L82 PathProgramCache]: Analyzing trace with hash -1275758021, now seen corresponding path program 1 times [2018-02-04 19:14:25,030 INFO L213 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-02-04 19:14:25,030 INFO L67 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-02-04 19:14:25,031 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 19:14:25,031 INFO L109 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-02-04 19:14:25,031 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 19:14:25,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 19:14:25,046 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-04 19:14:25,266 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2018-02-04 19:14:25,266 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-02-04 19:14:25,266 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2018-02-04 19:14:25,267 INFO L409 AbstractCegarLoop]: Interpolant automaton has 22 states [2018-02-04 19:14:25,267 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2018-02-04 19:14:25,267 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=419, Unknown=0, NotChecked=0, Total=462 [2018-02-04 19:14:25,267 INFO L87 Difference]: Start difference. First operand 132 states and 134 transitions. Second operand 22 states. [2018-02-04 19:14:25,626 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-04 19:14:25,626 INFO L93 Difference]: Finished difference Result 135 states and 137 transitions. [2018-02-04 19:14:25,627 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2018-02-04 19:14:25,627 INFO L78 Accepts]: Start accepts. Automaton has 22 states. Word has length 103 [2018-02-04 19:14:25,627 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-04 19:14:25,627 INFO L225 Difference]: With dead ends: 135 [2018-02-04 19:14:25,627 INFO L226 Difference]: Without dead ends: 135 [2018-02-04 19:14:25,628 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=75, Invalid=795, Unknown=0, NotChecked=0, Total=870 [2018-02-04 19:14:25,628 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 135 states. [2018-02-04 19:14:25,629 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 135 to 130. [2018-02-04 19:14:25,629 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 130 states. [2018-02-04 19:14:25,629 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 130 states to 130 states and 132 transitions. [2018-02-04 19:14:25,629 INFO L78 Accepts]: Start accepts. Automaton has 130 states and 132 transitions. Word has length 103 [2018-02-04 19:14:25,629 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-04 19:14:25,629 INFO L432 AbstractCegarLoop]: Abstraction has 130 states and 132 transitions. [2018-02-04 19:14:25,629 INFO L433 AbstractCegarLoop]: Interpolant automaton has 22 states. [2018-02-04 19:14:25,630 INFO L276 IsEmpty]: Start isEmpty. Operand 130 states and 132 transitions. [2018-02-04 19:14:25,630 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2018-02-04 19:14:25,630 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 19:14:25,630 INFO L351 BasicCegarLoop]: trace histogram [9, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-04 19:14:25,630 INFO L371 AbstractCegarLoop]: === Iteration 26 === [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]=== [2018-02-04 19:14:25,630 INFO L82 PathProgramCache]: Analyzing trace with hash -1275758020, now seen corresponding path program 1 times [2018-02-04 19:14:25,630 INFO L213 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-02-04 19:14:25,630 INFO L67 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-02-04 19:14:25,631 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 19:14:25,631 INFO L109 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-02-04 19:14:25,631 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 19:14:25,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 19:14:25,641 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-04 19:14:25,739 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 45 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 19:14:25,740 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-02-04 19:14:25,740 INFO L213 onRefinementStrategy]: Switched to mode SMTINTERPOL_FP [2018-02-04 19:14:25,741 INFO L109 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-02-04 19:14:25,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 19:14:25,770 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-02-04 19:14:25,786 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 45 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 19:14:25,786 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-02-04 19:14:25,787 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13] total 14 [2018-02-04 19:14:25,787 INFO L409 AbstractCegarLoop]: Interpolant automaton has 14 states [2018-02-04 19:14:25,787 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2018-02-04 19:14:25,787 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=80, Invalid=102, Unknown=0, NotChecked=0, Total=182 [2018-02-04 19:14:25,788 INFO L87 Difference]: Start difference. First operand 130 states and 132 transitions. Second operand 14 states. [2018-02-04 19:14:25,824 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-04 19:14:25,824 INFO L93 Difference]: Finished difference Result 133 states and 135 transitions. [2018-02-04 19:14:25,824 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2018-02-04 19:14:25,824 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 103 [2018-02-04 19:14:25,825 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-04 19:14:25,825 INFO L225 Difference]: With dead ends: 133 [2018-02-04 19:14:25,825 INFO L226 Difference]: Without dead ends: 131 [2018-02-04 19:14:25,825 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 116 GetRequests, 103 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=84, Invalid=126, Unknown=0, NotChecked=0, Total=210 [2018-02-04 19:14:25,826 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 131 states. [2018-02-04 19:14:25,827 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 131 to 131. [2018-02-04 19:14:25,828 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 131 states. [2018-02-04 19:14:25,828 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 131 states to 131 states and 133 transitions. [2018-02-04 19:14:25,828 INFO L78 Accepts]: Start accepts. Automaton has 131 states and 133 transitions. Word has length 103 [2018-02-04 19:14:25,828 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-04 19:14:25,828 INFO L432 AbstractCegarLoop]: Abstraction has 131 states and 133 transitions. [2018-02-04 19:14:25,828 INFO L433 AbstractCegarLoop]: Interpolant automaton has 14 states. [2018-02-04 19:14:25,829 INFO L276 IsEmpty]: Start isEmpty. Operand 131 states and 133 transitions. [2018-02-04 19:14:25,829 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2018-02-04 19:14:25,829 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 19:14:25,829 INFO L351 BasicCegarLoop]: trace histogram [10, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-04 19:14:25,829 INFO L371 AbstractCegarLoop]: === Iteration 27 === [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]=== [2018-02-04 19:14:25,829 INFO L82 PathProgramCache]: Analyzing trace with hash 666975281, now seen corresponding path program 2 times [2018-02-04 19:14:25,830 INFO L213 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-02-04 19:14:25,830 INFO L67 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-02-04 19:14:25,830 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 19:14:25,830 INFO L109 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-02-04 19:14:25,831 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 19:14:25,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 19:14:25,847 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-04 19:14:25,948 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 19:14:25,948 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-02-04 19:14:25,948 INFO L213 onRefinementStrategy]: Switched to mode SMTINTERPOL_FP [2018-02-04 19:14:25,949 INFO L109 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-02-04 19:14:25,975 INFO L242 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2018-02-04 19:14:25,975 INFO L243 tOrderPrioritization]: Conjunction of SSA is unsat [2018-02-04 19:14:25,981 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-02-04 19:14:25,994 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 16 [2018-02-04 19:14:25,994 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-02-04 19:14:26,008 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 19 [2018-02-04 19:14:26,008 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-02-04 19:14:26,020 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-02-04 19:14:26,020 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:38, output treesize:36 [2018-02-04 19:14:26,490 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2018-02-04 19:14:26,490 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-02-04 19:14:26,490 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [24] imperfect sequences [14] total 37 [2018-02-04 19:14:26,491 INFO L409 AbstractCegarLoop]: Interpolant automaton has 37 states [2018-02-04 19:14:26,491 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 37 interpolants. [2018-02-04 19:14:26,491 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=146, Invalid=1186, Unknown=0, NotChecked=0, Total=1332 [2018-02-04 19:14:26,491 INFO L87 Difference]: Start difference. First operand 131 states and 133 transitions. Second operand 37 states. [2018-02-04 19:14:27,657 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-04 19:14:27,657 INFO L93 Difference]: Finished difference Result 132 states and 134 transitions. [2018-02-04 19:14:27,657 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2018-02-04 19:14:27,657 INFO L78 Accepts]: Start accepts. Automaton has 37 states. Word has length 104 [2018-02-04 19:14:27,657 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-04 19:14:27,658 INFO L225 Difference]: With dead ends: 132 [2018-02-04 19:14:27,658 INFO L226 Difference]: Without dead ends: 130 [2018-02-04 19:14:27,658 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 138 GetRequests, 77 SyntacticMatches, 5 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 608 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=364, Invalid=2942, Unknown=0, NotChecked=0, Total=3306 [2018-02-04 19:14:27,658 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 130 states. [2018-02-04 19:14:27,659 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 130 to 130. [2018-02-04 19:14:27,659 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 130 states. [2018-02-04 19:14:27,660 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 130 states to 130 states and 132 transitions. [2018-02-04 19:14:27,660 INFO L78 Accepts]: Start accepts. Automaton has 130 states and 132 transitions. Word has length 104 [2018-02-04 19:14:27,660 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-04 19:14:27,660 INFO L432 AbstractCegarLoop]: Abstraction has 130 states and 132 transitions. [2018-02-04 19:14:27,660 INFO L433 AbstractCegarLoop]: Interpolant automaton has 37 states. [2018-02-04 19:14:27,660 INFO L276 IsEmpty]: Start isEmpty. Operand 130 states and 132 transitions. [2018-02-04 19:14:27,660 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2018-02-04 19:14:27,660 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 19:14:27,661 INFO L351 BasicCegarLoop]: trace histogram [11, 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, 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, 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] [2018-02-04 19:14:27,661 INFO L371 AbstractCegarLoop]: === Iteration 28 === [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]=== [2018-02-04 19:14:27,661 INFO L82 PathProgramCache]: Analyzing trace with hash -603686051, now seen corresponding path program 1 times [2018-02-04 19:14:27,661 INFO L213 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-02-04 19:14:27,661 INFO L67 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-02-04 19:14:27,661 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 19:14:27,661 INFO L107 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-02-04 19:14:27,662 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 19:14:27,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 19:14:27,672 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-04 19:14:27,937 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 0 proven. 66 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 19:14:27,937 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-02-04 19:14:27,938 INFO L213 onRefinementStrategy]: Switched to mode SMTINTERPOL_FP [2018-02-04 19:14:27,938 INFO L109 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-02-04 19:14:27,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 19:14:27,968 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-02-04 19:14:28,090 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 0 proven. 66 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 19:14:28,090 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-02-04 19:14:28,090 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 15] total 16 [2018-02-04 19:14:28,091 INFO L409 AbstractCegarLoop]: Interpolant automaton has 16 states [2018-02-04 19:14:28,091 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2018-02-04 19:14:28,091 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=107, Invalid=133, Unknown=0, NotChecked=0, Total=240 [2018-02-04 19:14:28,091 INFO L87 Difference]: Start difference. First operand 130 states and 132 transitions. Second operand 16 states. [2018-02-04 19:14:28,277 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-04 19:14:28,277 INFO L93 Difference]: Finished difference Result 133 states and 135 transitions. [2018-02-04 19:14:28,278 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2018-02-04 19:14:28,278 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 109 [2018-02-04 19:14:28,278 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-04 19:14:28,279 INFO L225 Difference]: With dead ends: 133 [2018-02-04 19:14:28,279 INFO L226 Difference]: Without dead ends: 131 [2018-02-04 19:14:28,279 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 124 GetRequests, 109 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=111, Invalid=161, Unknown=0, NotChecked=0, Total=272 [2018-02-04 19:14:28,279 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 131 states. [2018-02-04 19:14:28,281 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 131 to 131. [2018-02-04 19:14:28,281 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 131 states. [2018-02-04 19:14:28,281 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 131 states to 131 states and 133 transitions. [2018-02-04 19:14:28,282 INFO L78 Accepts]: Start accepts. Automaton has 131 states and 133 transitions. Word has length 109 [2018-02-04 19:14:28,282 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-04 19:14:28,282 INFO L432 AbstractCegarLoop]: Abstraction has 131 states and 133 transitions. [2018-02-04 19:14:28,282 INFO L433 AbstractCegarLoop]: Interpolant automaton has 16 states. [2018-02-04 19:14:28,282 INFO L276 IsEmpty]: Start isEmpty. Operand 131 states and 133 transitions. [2018-02-04 19:14:28,282 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2018-02-04 19:14:28,283 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 19:14:28,283 INFO L351 BasicCegarLoop]: trace histogram [12, 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, 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, 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] [2018-02-04 19:14:28,283 INFO L371 AbstractCegarLoop]: === Iteration 29 === [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]=== [2018-02-04 19:14:28,283 INFO L82 PathProgramCache]: Analyzing trace with hash 1049768338, now seen corresponding path program 2 times [2018-02-04 19:14:28,283 INFO L213 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-02-04 19:14:28,283 INFO L67 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-02-04 19:14:28,284 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 19:14:28,284 INFO L109 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-02-04 19:14:28,284 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 19:14:28,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 19:14:28,302 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-04 19:14:28,443 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 0 proven. 78 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 19:14:28,444 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-02-04 19:14:28,444 INFO L213 onRefinementStrategy]: Switched to mode SMTINTERPOL_FP [2018-02-04 19:14:28,445 INFO L109 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-02-04 19:14:28,478 INFO L242 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2018-02-04 19:14:28,478 INFO L243 tOrderPrioritization]: Conjunction of SSA is unsat [2018-02-04 19:14:28,485 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-02-04 19:14:28,604 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 8 [2018-02-04 19:14:28,606 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-02-04 19:14:28,606 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-02-04 19:14:28,608 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 19:14:28,609 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-02-04 19:14:28,609 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:11, output treesize:7 [2018-02-04 19:14:28,689 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-02-04 19:14:28,691 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-02-04 19:14:28,696 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2018-02-04 19:14:28,696 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:38, output treesize:26 [2018-02-04 19:14:28,699 WARN L1033 $PredicateComparison]: unable to prove that (exists ((LDV_INIT_LIST_HEAD_~list.offset Int) (v_DerPreprocessor_2 Int)) (and (= |c_#memory_int| (store |c_old(#memory_int)| |c_LDV_INIT_LIST_HEAD_#in~list.base| (let ((.cse0 (+ LDV_INIT_LIST_HEAD_~list.offset 4))) (store (store (select |c_old(#memory_int)| |c_LDV_INIT_LIST_HEAD_#in~list.base|) LDV_INIT_LIST_HEAD_~list.offset v_DerPreprocessor_2) .cse0 (select (select |c_#memory_int| |c_LDV_INIT_LIST_HEAD_#in~list.base|) .cse0))))) (<= LDV_INIT_LIST_HEAD_~list.offset |c_LDV_INIT_LIST_HEAD_#in~list.offset|))) is different from true [2018-02-04 19:14:28,704 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 27 [2018-02-04 19:14:28,706 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:14:28,710 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 35 [2018-02-04 19:14:28,714 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:14:28,714 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:14:28,718 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 37 [2018-02-04 19:14:28,719 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-02-04 19:14:28,726 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 19:14:28,729 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 19:14:28,734 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-02-04 19:14:28,734 INFO L202 ElimStorePlain]: Needed 4 recursive calls to eliminate 3 variables, input treesize:37, output treesize:9 [2018-02-04 19:14:28,946 WARN L1033 $PredicateComparison]: unable to prove that (exists ((ldv_atomic_add_return_~temp~0 Int)) (let ((.cse0 (select |c_old(#memory_int)| |c_ldv_atomic_add_return_#in~v.base|))) (and (<= (+ |c_ldv_atomic_add_return_#in~i| (select .cse0 |c_ldv_atomic_add_return_#in~v.offset|)) ldv_atomic_add_return_~temp~0) (= |c_#memory_int| (store |c_old(#memory_int)| |c_ldv_atomic_add_return_#in~v.base| (store .cse0 |c_ldv_atomic_add_return_#in~v.offset| ldv_atomic_add_return_~temp~0)))))) is different from true [2018-02-04 19:14:28,951 WARN L1033 $PredicateComparison]: unable to prove that (exists ((ldv_atomic_add_return_~temp~0 Int)) (let ((.cse0 (select |c_old(#memory_int)| |c_ldv_kref_get_#in~kref.base|))) (and (= (store |c_old(#memory_int)| |c_ldv_kref_get_#in~kref.base| (store .cse0 |c_ldv_kref_get_#in~kref.offset| ldv_atomic_add_return_~temp~0)) |c_#memory_int|) (<= (+ (select .cse0 |c_ldv_kref_get_#in~kref.offset|) 1) ldv_atomic_add_return_~temp~0)))) is different from true [2018-02-04 19:14:28,955 WARN L1033 $PredicateComparison]: unable to prove that (exists ((ldv_atomic_add_return_~temp~0 Int)) (let ((.cse0 (select |c_old(#memory_int)| |c_ldv_kobject_get_#in~kobj.base|)) (.cse1 (+ |c_ldv_kobject_get_#in~kobj.offset| 12))) (and (= (store |c_old(#memory_int)| |c_ldv_kobject_get_#in~kobj.base| (store .cse0 .cse1 ldv_atomic_add_return_~temp~0)) |c_#memory_int|) (<= (+ (select .cse0 .cse1) 1) ldv_atomic_add_return_~temp~0)))) is different from true [2018-02-04 19:14:28,961 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 19:14:28,961 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 27 [2018-02-04 19:14:28,963 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 15 [2018-02-04 19:14:28,963 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-02-04 19:14:28,966 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 19:14:28,968 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-02-04 19:14:28,968 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:28, output treesize:7 [2018-02-04 19:14:29,247 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 13 [2018-02-04 19:14:29,253 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 13 treesize of output 17 [2018-02-04 19:14:29,254 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 2 xjuncts. [2018-02-04 19:14:29,256 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-02-04 19:14:29,258 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2018-02-04 19:14:29,258 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:17, output treesize:8 [2018-02-04 19:14:29,769 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 78 trivial. 0 not checked. [2018-02-04 19:14:29,769 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-02-04 19:14:29,769 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [49] imperfect sequences [16] total 63 [2018-02-04 19:14:29,770 INFO L409 AbstractCegarLoop]: Interpolant automaton has 63 states [2018-02-04 19:14:29,770 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 63 interpolants. [2018-02-04 19:14:29,770 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=215, Invalid=3219, Unknown=4, NotChecked=468, Total=3906 [2018-02-04 19:14:29,771 INFO L87 Difference]: Start difference. First operand 131 states and 133 transitions. Second operand 63 states. [2018-02-04 19:14:31,877 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-04 19:14:31,877 INFO L93 Difference]: Finished difference Result 123 states and 123 transitions. [2018-02-04 19:14:31,877 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 65 states. [2018-02-04 19:14:31,877 INFO L78 Accepts]: Start accepts. Automaton has 63 states. Word has length 110 [2018-02-04 19:14:31,877 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-04 19:14:31,878 INFO L225 Difference]: With dead ends: 123 [2018-02-04 19:14:31,878 INFO L226 Difference]: Without dead ends: 112 [2018-02-04 19:14:31,879 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 154 GetRequests, 64 SyntacticMatches, 0 SemanticMatches, 90 ConstructedPredicates, 4 IntricatePredicates, 0 DeprecatedPredicates, 1359 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=365, Invalid=7303, Unknown=4, NotChecked=700, Total=8372 [2018-02-04 19:14:31,880 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 112 states. [2018-02-04 19:14:31,881 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 112 to 112. [2018-02-04 19:14:31,881 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 112 states. [2018-02-04 19:14:31,881 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112 states to 112 states and 112 transitions. [2018-02-04 19:14:31,881 INFO L78 Accepts]: Start accepts. Automaton has 112 states and 112 transitions. Word has length 110 [2018-02-04 19:14:31,881 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-04 19:14:31,881 INFO L432 AbstractCegarLoop]: Abstraction has 112 states and 112 transitions. [2018-02-04 19:14:31,881 INFO L433 AbstractCegarLoop]: Interpolant automaton has 63 states. [2018-02-04 19:14:31,881 INFO L276 IsEmpty]: Start isEmpty. Operand 112 states and 112 transitions. [2018-02-04 19:14:31,882 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2018-02-04 19:14:31,882 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 19:14:31,882 INFO L351 BasicCegarLoop]: trace histogram [13, 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, 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, 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] [2018-02-04 19:14:31,882 INFO L371 AbstractCegarLoop]: === Iteration 30 === [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]=== [2018-02-04 19:14:31,882 INFO L82 PathProgramCache]: Analyzing trace with hash 1499710248, now seen corresponding path program 1 times [2018-02-04 19:14:31,882 INFO L213 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-02-04 19:14:31,882 INFO L67 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-02-04 19:14:31,883 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 19:14:31,883 INFO L107 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-02-04 19:14:31,883 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 19:14:31,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 19:14:31,899 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-04 19:14:32,088 INFO L134 CoverageAnalysis]: Checked inductivity of 91 backedges. 0 proven. 91 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 19:14:32,088 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-02-04 19:14:32,088 INFO L213 onRefinementStrategy]: Switched to mode SMTINTERPOL_FP [2018-02-04 19:14:32,089 INFO L109 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-02-04 19:14:32,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 19:14:32,107 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-02-04 19:14:32,120 INFO L134 CoverageAnalysis]: Checked inductivity of 91 backedges. 0 proven. 91 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 19:14:32,120 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-02-04 19:14:32,120 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17] total 18 [2018-02-04 19:14:32,121 INFO L409 AbstractCegarLoop]: Interpolant automaton has 18 states [2018-02-04 19:14:32,121 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2018-02-04 19:14:32,121 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=138, Invalid=168, Unknown=0, NotChecked=0, Total=306 [2018-02-04 19:14:32,121 INFO L87 Difference]: Start difference. First operand 112 states and 112 transitions. Second operand 18 states. [2018-02-04 19:14:32,150 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-04 19:14:32,150 INFO L93 Difference]: Finished difference Result 115 states and 115 transitions. [2018-02-04 19:14:32,150 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2018-02-04 19:14:32,150 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 111 [2018-02-04 19:14:32,151 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-04 19:14:32,151 INFO L225 Difference]: With dead ends: 115 [2018-02-04 19:14:32,151 INFO L226 Difference]: Without dead ends: 113 [2018-02-04 19:14:32,151 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 128 GetRequests, 111 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=142, Invalid=200, Unknown=0, NotChecked=0, Total=342 [2018-02-04 19:14:32,152 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 113 states. [2018-02-04 19:14:32,153 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 113 to 113. [2018-02-04 19:14:32,153 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 113 states. [2018-02-04 19:14:32,154 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 113 states to 113 states and 113 transitions. [2018-02-04 19:14:32,154 INFO L78 Accepts]: Start accepts. Automaton has 113 states and 113 transitions. Word has length 111 [2018-02-04 19:14:32,154 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-04 19:14:32,154 INFO L432 AbstractCegarLoop]: Abstraction has 113 states and 113 transitions. [2018-02-04 19:14:32,154 INFO L433 AbstractCegarLoop]: Interpolant automaton has 18 states. [2018-02-04 19:14:32,154 INFO L276 IsEmpty]: Start isEmpty. Operand 113 states and 113 transitions. [2018-02-04 19:14:32,155 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2018-02-04 19:14:32,155 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 19:14:32,155 INFO L351 BasicCegarLoop]: trace histogram [14, 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, 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, 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] [2018-02-04 19:14:32,155 INFO L371 AbstractCegarLoop]: === Iteration 31 === [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]=== [2018-02-04 19:14:32,155 INFO L82 PathProgramCache]: Analyzing trace with hash 1331478557, now seen corresponding path program 2 times [2018-02-04 19:14:32,155 INFO L213 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-02-04 19:14:32,155 INFO L67 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-02-04 19:14:32,156 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 19:14:32,156 INFO L109 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-02-04 19:14:32,156 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 19:14:32,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 19:14:32,168 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-04 19:14:32,303 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 0 proven. 105 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 19:14:32,304 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-02-04 19:14:32,304 INFO L213 onRefinementStrategy]: Switched to mode SMTINTERPOL_FP [2018-02-04 19:14:32,304 INFO L109 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-02-04 19:14:32,333 INFO L242 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2018-02-04 19:14:32,333 INFO L243 tOrderPrioritization]: Conjunction of SSA is unsat [2018-02-04 19:14:32,339 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-02-04 19:14:32,353 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 0 proven. 105 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 19:14:32,353 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-02-04 19:14:32,354 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 18] total 19 [2018-02-04 19:14:32,354 INFO L409 AbstractCegarLoop]: Interpolant automaton has 19 states [2018-02-04 19:14:32,354 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2018-02-04 19:14:32,354 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=155, Invalid=187, Unknown=0, NotChecked=0, Total=342 [2018-02-04 19:14:32,354 INFO L87 Difference]: Start difference. First operand 113 states and 113 transitions. Second operand 19 states. [2018-02-04 19:14:32,397 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-04 19:14:32,397 INFO L93 Difference]: Finished difference Result 116 states and 116 transitions. [2018-02-04 19:14:32,398 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2018-02-04 19:14:32,398 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 112 [2018-02-04 19:14:32,399 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-04 19:14:32,399 INFO L225 Difference]: With dead ends: 116 [2018-02-04 19:14:32,399 INFO L226 Difference]: Without dead ends: 114 [2018-02-04 19:14:32,400 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 130 GetRequests, 112 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=159, Invalid=221, Unknown=0, NotChecked=0, Total=380 [2018-02-04 19:14:32,400 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 114 states. [2018-02-04 19:14:32,402 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 114 to 114. [2018-02-04 19:14:32,402 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 114 states. [2018-02-04 19:14:32,402 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 114 states and 114 transitions. [2018-02-04 19:14:32,403 INFO L78 Accepts]: Start accepts. Automaton has 114 states and 114 transitions. Word has length 112 [2018-02-04 19:14:32,403 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-04 19:14:32,403 INFO L432 AbstractCegarLoop]: Abstraction has 114 states and 114 transitions. [2018-02-04 19:14:32,403 INFO L433 AbstractCegarLoop]: Interpolant automaton has 19 states. [2018-02-04 19:14:32,403 INFO L276 IsEmpty]: Start isEmpty. Operand 114 states and 114 transitions. [2018-02-04 19:14:32,405 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2018-02-04 19:14:32,405 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 19:14:32,405 INFO L351 BasicCegarLoop]: trace histogram [15, 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, 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, 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] [2018-02-04 19:14:32,405 INFO L371 AbstractCegarLoop]: === Iteration 32 === [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]=== [2018-02-04 19:14:32,405 INFO L82 PathProgramCache]: Analyzing trace with hash 411263432, now seen corresponding path program 3 times [2018-02-04 19:14:32,405 INFO L213 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-02-04 19:14:32,405 INFO L67 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-02-04 19:14:32,407 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 19:14:32,407 INFO L107 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-02-04 19:14:32,407 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 19:14:32,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 19:14:32,426 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-04 19:14:32,631 INFO L134 CoverageAnalysis]: Checked inductivity of 120 backedges. 0 proven. 120 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 19:14:32,631 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-02-04 19:14:32,631 INFO L213 onRefinementStrategy]: Switched to mode SMTINTERPOL_FP [2018-02-04 19:14:32,632 INFO L109 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2018-02-04 19:14:32,673 INFO L242 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 9 check-sat command(s) [2018-02-04 19:14:32,673 INFO L243 tOrderPrioritization]: Conjunction of SSA is unsat [2018-02-04 19:14:32,676 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-02-04 19:14:32,691 INFO L134 CoverageAnalysis]: Checked inductivity of 120 backedges. 0 proven. 120 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 19:14:32,691 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-02-04 19:14:32,691 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 19] total 20 [2018-02-04 19:14:32,692 INFO L409 AbstractCegarLoop]: Interpolant automaton has 20 states [2018-02-04 19:14:32,693 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2018-02-04 19:14:32,694 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=173, Invalid=207, Unknown=0, NotChecked=0, Total=380 [2018-02-04 19:14:32,694 INFO L87 Difference]: Start difference. First operand 114 states and 114 transitions. Second operand 20 states. [2018-02-04 19:14:32,801 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-04 19:14:32,801 INFO L93 Difference]: Finished difference Result 117 states and 117 transitions. [2018-02-04 19:14:32,802 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2018-02-04 19:14:32,802 INFO L78 Accepts]: Start accepts. Automaton has 20 states. Word has length 113 [2018-02-04 19:14:32,802 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-04 19:14:32,803 INFO L225 Difference]: With dead ends: 117 [2018-02-04 19:14:32,803 INFO L226 Difference]: Without dead ends: 115 [2018-02-04 19:14:32,803 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 132 GetRequests, 113 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=177, Invalid=243, Unknown=0, NotChecked=0, Total=420 [2018-02-04 19:14:32,803 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 115 states. [2018-02-04 19:14:32,805 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 115 to 115. [2018-02-04 19:14:32,805 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 115 states. [2018-02-04 19:14:32,805 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115 states to 115 states and 115 transitions. [2018-02-04 19:14:32,806 INFO L78 Accepts]: Start accepts. Automaton has 115 states and 115 transitions. Word has length 113 [2018-02-04 19:14:32,806 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-04 19:14:32,806 INFO L432 AbstractCegarLoop]: Abstraction has 115 states and 115 transitions. [2018-02-04 19:14:32,806 INFO L433 AbstractCegarLoop]: Interpolant automaton has 20 states. [2018-02-04 19:14:32,806 INFO L276 IsEmpty]: Start isEmpty. Operand 115 states and 115 transitions. [2018-02-04 19:14:32,807 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2018-02-04 19:14:32,807 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 19:14:32,807 INFO L351 BasicCegarLoop]: trace histogram [16, 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, 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, 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] [2018-02-04 19:14:32,807 INFO L371 AbstractCegarLoop]: === Iteration 33 === [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]=== [2018-02-04 19:14:32,807 INFO L82 PathProgramCache]: Analyzing trace with hash 1949365629, now seen corresponding path program 4 times [2018-02-04 19:14:32,807 INFO L213 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-02-04 19:14:32,807 INFO L67 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-02-04 19:14:32,808 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 19:14:32,809 INFO L107 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-02-04 19:14:32,809 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 19:14:32,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-02-04 19:14:32,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-02-04 19:14:32,922 INFO L410 BasicCegarLoop]: Counterexample might be feasible [2018-02-04 19:14:32,945 WARN L343 cessorBacktranslator]: Generated EnsuresSpecification free ensures #res.base == #ptr.base && #res.offset == #ptr.offset; is not ensure(true) [2018-02-04 19:14:32,953 WARN L343 cessorBacktranslator]: Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) [2018-02-04 19:14:32,970 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 04.02 07:14:32 BoogieIcfgContainer [2018-02-04 19:14:32,971 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-02-04 19:14:32,972 INFO L168 Benchmark]: Toolchain (without parser) took 16619.37 ms. Allocated memory was 404.8 MB in the beginning and 918.6 MB in the end (delta: 513.8 MB). Free memory was 358.8 MB in the beginning and 730.0 MB in the end (delta: -371.2 MB). Peak memory consumption was 142.6 MB. Max. memory is 5.3 GB. [2018-02-04 19:14:32,973 INFO L168 Benchmark]: CDTParser took 0.14 ms. Allocated memory is still 404.8 MB. Free memory is still 364.1 MB. There was no memory consumed. Max. memory is 5.3 GB. [2018-02-04 19:14:32,973 INFO L168 Benchmark]: CACSL2BoogieTranslator took 184.68 ms. Allocated memory is still 404.8 MB. Free memory was 358.8 MB in the beginning and 342.9 MB in the end (delta: 15.9 MB). Peak memory consumption was 15.9 MB. Max. memory is 5.3 GB. [2018-02-04 19:14:32,973 INFO L168 Benchmark]: Boogie Preprocessor took 34.96 ms. Allocated memory is still 404.8 MB. Free memory is still 342.9 MB. There was no memory consumed. Max. memory is 5.3 GB. [2018-02-04 19:14:32,973 INFO L168 Benchmark]: RCFGBuilder took 371.19 ms. Allocated memory is still 404.8 MB. Free memory was 342.9 MB in the beginning and 304.6 MB in the end (delta: 38.3 MB). Peak memory consumption was 38.3 MB. Max. memory is 5.3 GB. [2018-02-04 19:14:32,973 INFO L168 Benchmark]: TraceAbstraction took 16025.64 ms. Allocated memory was 404.8 MB in the beginning and 918.6 MB in the end (delta: 513.8 MB). Free memory was 304.6 MB in the beginning and 730.0 MB in the end (delta: -425.4 MB). Peak memory consumption was 88.4 MB. Max. memory is 5.3 GB. [2018-02-04 19:14:32,974 INFO L344 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14 ms. Allocated memory is still 404.8 MB. Free memory is still 364.1 MB. There was no memory consumed. Max. memory is 5.3 GB. * CACSL2BoogieTranslator took 184.68 ms. Allocated memory is still 404.8 MB. Free memory was 358.8 MB in the beginning and 342.9 MB in the end (delta: 15.9 MB). Peak memory consumption was 15.9 MB. Max. memory is 5.3 GB. * Boogie Preprocessor took 34.96 ms. Allocated memory is still 404.8 MB. Free memory is still 342.9 MB. There was no memory consumed. Max. memory is 5.3 GB. * RCFGBuilder took 371.19 ms. Allocated memory is still 404.8 MB. Free memory was 342.9 MB in the beginning and 304.6 MB in the end (delta: 38.3 MB). Peak memory consumption was 38.3 MB. Max. memory is 5.3 GB. * TraceAbstraction took 16025.64 ms. Allocated memory was 404.8 MB in the beginning and 918.6 MB in the end (delta: 513.8 MB). Free memory was 304.6 MB in the beginning and 730.0 MB in the end (delta: -425.4 MB). Peak memory consumption was 88.4 MB. Max. memory is 5.3 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Generated EnsuresSpecification free ensures #res.base == #ptr.base && #res.offset == #ptr.offset; is not ensure(true) - GenericResult: Unfinished Backtranslation Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 1443]: not all allocated memory was freed not all allocated memory was freed We found a FailurePath: [L1444] CALL entry_point() [L1436] struct ldv_kobject *kobj; [L1437] CALL, EXPR ldv_kobject_create() [L1406] struct ldv_kobject *kobj; [L1408] CALL, EXPR ldv_malloc(sizeof(*kobj)) VAL [\old(size)=16] [L1073] COND TRUE __VERIFIER_nondet_int() [L1074] EXPR, FCALL malloc(size) VAL [\old(size)=16, malloc(size)={19:0}, size=16] [L1074] RET return malloc(size); VAL [\old(size)=16, \result={19:0}, malloc(size)={19:0}, size=16] [L1408] EXPR ldv_malloc(sizeof(*kobj)) VAL [ldv_malloc(sizeof(*kobj))={19:0}] [L1408] kobj = ldv_malloc(sizeof(*kobj)) [L1409] COND FALSE !(!kobj) VAL [kobj={19:0}] [L1411] FCALL memset(kobj, 0, sizeof(*kobj)) VAL [kobj={19:0}, memset(kobj, 0, sizeof(*kobj))={19:0}] [L1413] CALL ldv_kobject_init(kobj) VAL [kobj={19:0}] [L1394] COND FALSE !(!kobj) VAL [kobj={19:0}, kobj={19:0}] [L1398] CALL ldv_kobject_init_internal(kobj) VAL [kobj={19:0}] [L1380] COND FALSE !(!kobj) VAL [kobj={19:0}, kobj={19:0}] [L1382] CALL ldv_kref_init(&kobj->kref) VAL [kref={19:12}] [L1294] RET, FCALL ((&kref->refcount)->counter) = (1) VAL [kref={19:12}, kref={19:12}] [L1382] ldv_kref_init(&kobj->kref) VAL [kobj={19:0}, kobj={19:0}] [L1383] CALL LDV_INIT_LIST_HEAD(&kobj->entry) VAL [list={19:4}] [L1099] FCALL list->next = list VAL [list={19:4}, list={19:4}] [L1100] FCALL list->prev = list VAL [list={19:4}, list={19:4}] [L1383] RET, FCALL LDV_INIT_LIST_HEAD(&kobj->entry) VAL [kobj={19:0}, kobj={19:0}] [L1413] ldv_kobject_init(kobj) VAL [kobj={19:0}] [L1414] RET return kobj; VAL [\result={19:0}, kobj={19:0}] [L1437] EXPR ldv_kobject_create() VAL [ldv_kobject_create()={19:0}] [L1437] kobj = ldv_kobject_create() [L1438] CALL ldv_kobject_get(kobj) VAL [kobj={19:0}] [L1373] COND TRUE \read(*kobj) VAL [kobj={19:0}, kobj={19:0}] [L1374] CALL ldv_kref_get(&kobj->kref) VAL [kref={19:12}] [L1308] CALL ldv_atomic_add_return(1, (&kref->refcount)) VAL [\old(i)=1, v={19:12}] [L1255] int temp; VAL [\old(i)=1, i=1, v={19:12}, v={19:12}] [L1256] EXPR, FCALL v->counter VAL [\old(i)=1, i=1, v={19:12}, v={19:12}, v->counter=1] [L1256] temp = v->counter [L1257] temp += i VAL [\old(i)=1, i=1, temp=2, v={19:12}, v={19:12}] [L1258] FCALL v->counter = temp VAL [\old(i)=1, i=1, temp=2, v={19:12}, v={19:12}] [L1259] RET return temp; VAL [\old(i)=1, \result=2, i=1, temp=2, v={19:12}, v={19:12}] [L1308] RET ldv_atomic_add_return(1, (&kref->refcount)) VAL [kref={19:12}, kref={19:12}, ldv_atomic_add_return(1, (&kref->refcount))=2] [L1374] ldv_kref_get(&kobj->kref) VAL [kobj={19:0}, kobj={19:0}] [L1375] RET return kobj; VAL [\result={19:0}, kobj={19:0}, kobj={19:0}] [L1438] ldv_kobject_get(kobj) VAL [kobj={19:0}, ldv_kobject_get(kobj)={19:0}] [L1440] CALL ldv_kobject_put(kobj) VAL [kobj={19:0}] [L1361] COND TRUE \read(*kobj) VAL [kobj={19:0}, kobj={19:0}] [L1363] CALL ldv_kref_put(&kobj->kref, ldv_kobject_release) VAL [kref={19:12}, release={-1:0}] [L1313] CALL, EXPR ldv_kref_sub(kref, 1, release) VAL [\old(count)=1, kref={19:12}, release={-1:0}] [L1281] CALL, EXPR ldv_atomic_sub_return(((int) count), (&kref->refcount)) VAL [\old(i)=1, v={19:12}] [L1264] int temp; VAL [\old(i)=1, i=1, v={19:12}, v={19:12}] [L1265] EXPR, FCALL v->counter VAL [\old(i)=1, i=1, v={19:12}, v={19:12}, v->counter=2] [L1265] temp = v->counter [L1266] temp -= i VAL [\old(i)=1, i=1, temp=1, v={19:12}, v={19:12}] [L1267] FCALL v->counter = temp VAL [\old(i)=1, i=1, temp=1, v={19:12}, v={19:12}] [L1268] RET return temp; VAL [\old(i)=1, \result=1, i=1, temp=1, v={19:12}, v={19:12}] [L1281] EXPR ldv_atomic_sub_return(((int) count), (&kref->refcount)) VAL [\old(count)=1, count=1, kref={19:12}, kref={19:12}, ldv_atomic_sub_return(((int) count), (&kref->refcount))=1, release={-1:0}, release={-1:0}] [L1281] COND FALSE !((ldv_atomic_sub_return(((int) count), (&kref->refcount)) == 0)) [L1285] RET return 0; VAL [\old(count)=1, \result=0, count=1, kref={19:12}, kref={19:12}, release={-1:0}, release={-1:0}] [L1313] EXPR ldv_kref_sub(kref, 1, release) VAL [kref={19:12}, kref={19:12}, ldv_kref_sub(kref, 1, release)=0, release={-1:0}, release={-1:0}] [L1313] RET return ldv_kref_sub(kref, 1, release); [L1363] ldv_kref_put(&kobj->kref, ldv_kobject_release) VAL [kobj={19:0}, kobj={19:0}, ldv_kref_put(&kobj->kref, ldv_kobject_release)=0] [L1440] FCALL ldv_kobject_put(kobj) - StatisticsResult: Ultimate Automizer benchmark data CFG has 21 procedures, 142 locations, 23 error locations. UNSAFE Result, 15.9s OverallTime, 33 OverallIterations, 16 TraceHistogramMax, 8.2s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 3824 SDtfs, 931 SDslu, 33622 SDs, 0 SdLazy, 12028 SolverSat, 217 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 5.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1696 GetRequests, 1116 SyntacticMatches, 11 SemanticMatches, 569 ConstructedPredicates, 4 IntricatePredicates, 0 DeprecatedPredicates, 3250 ImplicationChecksByTransitivity, 6.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=157occurred in iteration=8, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 32 MinimizatonAttempts, 58 StatesRemovedByMinimization, 9 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.1s SsaConstructionTime, 0.6s SatisfiabilityAnalysisTime, 6.3s InterpolantComputationTime, 3365 NumberOfCodeBlocks, 3323 NumberOfCodeBlocksAsserted, 57 NumberOfCheckSat, 3204 ConstructedInterpolants, 173 QuantifiedInterpolants, 634873 SizeOfPredicates, 113 NumberOfNonLiveVariables, 5589 ConjunctsInSsa, 545 ConjunctsInUnsatCore, 47 InterpolantComputations, 23 PerfectInterpolantSequences, 400/1557 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Written .csv to /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/memleaks_test22_1_false-valid-memtrack_true-termination.i_svcomp-DerefFreeMemtrack-32bit-Automizer_SmtInterpol_NoArray.epf_AutomizerC.xml/Csv-Benchmark-0-2018-02-04_19-14-32-981.csv Written .csv to /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/memleaks_test22_1_false-valid-memtrack_true-termination.i_svcomp-DerefFreeMemtrack-32bit-Automizer_SmtInterpol_NoArray.epf_AutomizerC.xml/Csv-TraceAbstractionBenchmarks-0-2018-02-04_19-14-32-981.csv Received shutdown request...