java -Xmx6000000000 -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data ./data --generate-csv --csv-dir ../../../releaseScripts/default/UAutomizer-linux/csv -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/ai/eq-bench/svcomp-DerefFreeMemtrack-32bit-Automizer_Taipan+AI_EQ_preciseopt.epf -i ../../../trunk/examples/svcomp/memsafety/test-0137_false-valid-deref.i -------------------------------------------------------------------------------- This is Ultimate 0.1.23-6b94a2f [2018-01-25 02:51:41,651 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-01-25 02:51:41,652 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-01-25 02:51:41,665 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-01-25 02:51:41,666 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-01-25 02:51:41,667 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-01-25 02:51:41,668 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-01-25 02:51:41,670 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-01-25 02:51:41,672 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-01-25 02:51:41,673 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-01-25 02:51:41,674 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-01-25 02:51:41,675 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-01-25 02:51:41,676 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-01-25 02:51:41,677 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-01-25 02:51:41,678 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-01-25 02:51:41,681 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-01-25 02:51:41,683 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-01-25 02:51:41,685 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-01-25 02:51:41,687 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-01-25 02:51:41,688 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-01-25 02:51:41,691 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-01-25 02:51:41,691 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-01-25 02:51:41,691 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-01-25 02:51:41,692 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-01-25 02:51:41,693 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-01-25 02:51:41,695 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-01-25 02:51:41,695 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-01-25 02:51:41,696 INFO L177 SettingsManager]: PEA to Boogie provides no preferences, ignoring... [2018-01-25 02:51:41,696 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-01-25 02:51:41,696 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-01-25 02:51:41,697 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-01-25 02:51:41,697 INFO L98 SettingsManager]: Beginning loading settings from /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/ai/eq-bench/svcomp-DerefFreeMemtrack-32bit-Automizer_Taipan+AI_EQ_preciseopt.epf [2018-01-25 02:51:41,707 INFO L110 SettingsManager]: Loading preferences was successful [2018-01-25 02:51:41,708 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-01-25 02:51:41,709 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-01-25 02:51:41,709 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-01-25 02:51:41,709 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-01-25 02:51:41,709 INFO L133 SettingsManager]: * Weq Fattening=true [2018-01-25 02:51:41,709 INFO L133 SettingsManager]: * Flatten before fatten=true [2018-01-25 02:51:41,710 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=VPDomain [2018-01-25 02:51:41,710 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-01-25 02:51:41,711 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-01-25 02:51:41,711 INFO L133 SettingsManager]: * sizeof long=4 [2018-01-25 02:51:41,711 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-01-25 02:51:41,711 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-01-25 02:51:41,711 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-01-25 02:51:41,712 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-01-25 02:51:41,712 INFO L133 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2018-01-25 02:51:41,712 INFO L133 SettingsManager]: * Bitprecise bitfields=true [2018-01-25 02:51:41,712 INFO L133 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2018-01-25 02:51:41,712 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-01-25 02:51:41,713 INFO L133 SettingsManager]: * sizeof long double=12 [2018-01-25 02:51:41,713 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-01-25 02:51:41,713 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-01-25 02:51:41,713 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-01-25 02:51:41,713 INFO L133 SettingsManager]: * Add additional assume for each assert=false [2018-01-25 02:51:41,714 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-01-25 02:51:41,714 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-01-25 02:51:41,714 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-01-25 02:51:41,714 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-01-25 02:51:41,714 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-01-25 02:51:41,715 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-01-25 02:51:41,715 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-01-25 02:51:41,715 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-01-25 02:51:41,715 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-01-25 02:51:41,715 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-01-25 02:51:41,715 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-01-25 02:51:41,716 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-01-25 02:51:41,716 INFO L133 SettingsManager]: * TransformationType=HEAP_SEPARATOR [2018-01-25 02:51:41,752 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-01-25 02:51:41,765 INFO L266 ainManager$Toolchain]: [Toolchain 1]: Parser(s) successfully initialized [2018-01-25 02:51:41,770 INFO L222 ainManager$Toolchain]: [Toolchain 1]: Toolchain data selected. [2018-01-25 02:51:41,771 INFO L271 PluginConnector]: Initializing CDTParser... [2018-01-25 02:51:41,772 INFO L276 PluginConnector]: CDTParser initialized [2018-01-25 02:51:41,773 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/memsafety/test-0137_false-valid-deref.i [2018-01-25 02:51:41,975 INFO L304 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-01-25 02:51:41,979 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-01-25 02:51:41,980 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-01-25 02:51:41,980 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-01-25 02:51:41,985 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-01-25 02:51:41,986 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.01 02:51:41" (1/1) ... [2018-01-25 02:51:41,989 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@54cae534 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.01 02:51:41, skipping insertion in model container [2018-01-25 02:51:41,989 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.01 02:51:41" (1/1) ... [2018-01-25 02:51:42,008 INFO L153 Dispatcher]: Using SV-COMP mode [2018-01-25 02:51:42,053 INFO L153 Dispatcher]: Using SV-COMP mode [2018-01-25 02:51:42,235 INFO L450 PostProcessor]: Settings: Checked method=main [2018-01-25 02:51:42,262 INFO L450 PostProcessor]: Settings: Checked method=main [2018-01-25 02:51:42,277 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.01 02:51:42 WrapperNode [2018-01-25 02:51:42,277 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-01-25 02:51:42,279 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-01-25 02:51:42,279 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-01-25 02:51:42,280 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-01-25 02:51:42,296 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.01 02:51:42" (1/1) ... [2018-01-25 02:51:42,296 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.01 02:51:42" (1/1) ... [2018-01-25 02:51:42,309 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.01 02:51:42" (1/1) ... [2018-01-25 02:51:42,309 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.01 02:51:42" (1/1) ... [2018-01-25 02:51:42,318 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.01 02:51:42" (1/1) ... [2018-01-25 02:51:42,321 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.01 02:51:42" (1/1) ... [2018-01-25 02:51:42,323 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.01 02:51:42" (1/1) ... [2018-01-25 02:51:42,325 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-01-25 02:51:42,326 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-01-25 02:51:42,326 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-01-25 02:51:42,326 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-01-25 02:51:42,328 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.01 02:51:42" (1/1) ... No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-01-25 02:51:42,381 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-01-25 02:51:42,381 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-01-25 02:51:42,382 INFO L136 BoogieDeclarations]: Found implementation of procedure list_empty [2018-01-25 02:51:42,382 INFO L136 BoogieDeclarations]: Found implementation of procedure __list_add [2018-01-25 02:51:42,382 INFO L136 BoogieDeclarations]: Found implementation of procedure __list_del [2018-01-25 02:51:42,382 INFO L136 BoogieDeclarations]: Found implementation of procedure list_add [2018-01-25 02:51:42,382 INFO L136 BoogieDeclarations]: Found implementation of procedure list_move [2018-01-25 02:51:42,382 INFO L136 BoogieDeclarations]: Found implementation of procedure gl_insert [2018-01-25 02:51:42,382 INFO L136 BoogieDeclarations]: Found implementation of procedure gl_read [2018-01-25 02:51:42,382 INFO L136 BoogieDeclarations]: Found implementation of procedure gl_destroy [2018-01-25 02:51:42,382 INFO L136 BoogieDeclarations]: Found implementation of procedure val_from_node [2018-01-25 02:51:42,383 INFO L136 BoogieDeclarations]: Found implementation of procedure gl_seek_max [2018-01-25 02:51:42,383 INFO L136 BoogieDeclarations]: Found implementation of procedure gl_sort [2018-01-25 02:51:42,383 INFO L136 BoogieDeclarations]: Found implementation of procedure main [2018-01-25 02:51:42,383 INFO L128 BoogieDeclarations]: Found specification of procedure write~int [2018-01-25 02:51:42,383 INFO L128 BoogieDeclarations]: Found specification of procedure read~int [2018-01-25 02:51:42,383 INFO L128 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2018-01-25 02:51:42,383 INFO L128 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2018-01-25 02:51:42,384 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.free [2018-01-25 02:51:42,384 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-01-25 02:51:42,384 INFO L128 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-01-25 02:51:42,384 INFO L128 BoogieDeclarations]: Found specification of procedure free [2018-01-25 02:51:42,384 INFO L128 BoogieDeclarations]: Found specification of procedure abort [2018-01-25 02:51:42,385 INFO L128 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2018-01-25 02:51:42,385 INFO L128 BoogieDeclarations]: Found specification of procedure list_empty [2018-01-25 02:51:42,385 INFO L128 BoogieDeclarations]: Found specification of procedure __list_add [2018-01-25 02:51:42,385 INFO L128 BoogieDeclarations]: Found specification of procedure __list_del [2018-01-25 02:51:42,385 INFO L128 BoogieDeclarations]: Found specification of procedure list_add [2018-01-25 02:51:42,385 INFO L128 BoogieDeclarations]: Found specification of procedure list_move [2018-01-25 02:51:42,386 INFO L128 BoogieDeclarations]: Found specification of procedure gl_insert [2018-01-25 02:51:42,386 INFO L128 BoogieDeclarations]: Found specification of procedure gl_read [2018-01-25 02:51:42,386 INFO L128 BoogieDeclarations]: Found specification of procedure gl_destroy [2018-01-25 02:51:42,386 INFO L128 BoogieDeclarations]: Found specification of procedure val_from_node [2018-01-25 02:51:42,386 INFO L128 BoogieDeclarations]: Found specification of procedure gl_seek_max [2018-01-25 02:51:42,386 INFO L128 BoogieDeclarations]: Found specification of procedure gl_sort [2018-01-25 02:51:42,387 INFO L128 BoogieDeclarations]: Found specification of procedure main [2018-01-25 02:51:42,387 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-01-25 02:51:42,387 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-01-25 02:51:42,989 INFO L257 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-01-25 02:51:42,990 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.01 02:51:42 BoogieIcfgContainer [2018-01-25 02:51:42,990 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-01-25 02:51:42,991 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-01-25 02:51:42,992 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-01-25 02:51:42,995 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-01-25 02:51:42,996 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.01 02:51:41" (1/3) ... [2018-01-25 02:51:42,997 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@42da2202 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.01 02:51:42, skipping insertion in model container [2018-01-25 02:51:42,998 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.01 02:51:42" (2/3) ... [2018-01-25 02:51:42,998 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@42da2202 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.01 02:51:42, skipping insertion in model container [2018-01-25 02:51:42,998 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.01 02:51:42" (3/3) ... [2018-01-25 02:51:43,001 INFO L105 eAbstractionObserver]: Analyzing ICFG test-0137_false-valid-deref.i [2018-01-25 02:51:43,010 INFO L130 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-01-25 02:51:43,018 INFO L142 ceAbstractionStarter]: Appying trace abstraction to program that has 63 error locations. [2018-01-25 02:51:43,070 INFO L322 AbstractCegarLoop]: Interprodecural is true [2018-01-25 02:51:43,071 INFO L323 AbstractCegarLoop]: Hoare is true [2018-01-25 02:51:43,071 INFO L324 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-01-25 02:51:43,071 INFO L325 AbstractCegarLoop]: Backedges is TWOTRACK [2018-01-25 02:51:43,071 INFO L326 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-01-25 02:51:43,071 INFO L327 AbstractCegarLoop]: Difference is false [2018-01-25 02:51:43,071 INFO L328 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-01-25 02:51:43,071 INFO L333 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-01-25 02:51:43,072 INFO L87 2NestedWordAutomaton]: Mode: main mode - execution starts in main procedure [2018-01-25 02:51:43,097 INFO L276 IsEmpty]: Start isEmpty. Operand 188 states. [2018-01-25 02:51:43,103 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2018-01-25 02:51:43,104 INFO L314 BasicCegarLoop]: Found error trace [2018-01-25 02:51:43,105 INFO L322 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2018-01-25 02:51:43,105 INFO L371 AbstractCegarLoop]: === Iteration 1 === [__list_addErr1RequiresViolation, __list_addErr3RequiresViolation, __list_addErr0RequiresViolation, __list_addErr2RequiresViolation, __list_addErr4RequiresViolation, __list_addErr7RequiresViolation, __list_addErr5RequiresViolation, __list_addErr6RequiresViolation, ULTIMATE.initErr3RequiresViolation, ULTIMATE.initErr1RequiresViolation, ULTIMATE.initErr2RequiresViolation, ULTIMATE.initErr0RequiresViolation, val_from_nodeErr0RequiresViolation, val_from_nodeErr1RequiresViolation, list_moveErr0RequiresViolation, list_moveErr3RequiresViolation, list_moveErr2RequiresViolation, list_moveErr1RequiresViolation, gl_sortErr16RequiresViolation, gl_sortErr4RequiresViolation, gl_sortErr12RequiresViolation, gl_sortErr5RequiresViolation, gl_sortErr0RequiresViolation, gl_sortErr11RequiresViolation, gl_sortErr9RequiresViolation, gl_sortErr2RequiresViolation, gl_sortErr18RequiresViolation, gl_sortErr7RequiresViolation, gl_sortErr13RequiresViolation, gl_sortErr14RequiresViolation, gl_sortErr19RequiresViolation, gl_sortErr6RequiresViolation, gl_sortErr1RequiresViolation, gl_sortErr17RequiresViolation, gl_sortErr15RequiresViolation, gl_sortErr10RequiresViolation, gl_sortErr8RequiresViolation, gl_sortErr3RequiresViolation, list_addErr1RequiresViolation, list_addErr0RequiresViolation, list_emptyErr0RequiresViolation, list_emptyErr1RequiresViolation, __list_delErr0RequiresViolation, __list_delErr2RequiresViolation, __list_delErr3RequiresViolation, __list_delErr1RequiresViolation, mainErr0EnsuresViolation, gl_insertErr0RequiresViolation, gl_insertErr1RequiresViolation, gl_seek_maxErr0RequiresViolation, gl_seek_maxErr2RequiresViolation, gl_seek_maxErr1RequiresViolation, gl_seek_maxErr5RequiresViolation, gl_seek_maxErr3RequiresViolation, gl_seek_maxErr4RequiresViolation, gl_destroyErr4RequiresViolation, gl_destroyErr2RequiresViolation, gl_destroyErr0RequiresViolation, gl_destroyErr1RequiresViolation, gl_destroyErr6RequiresViolation, gl_destroyErr7RequiresViolation, gl_destroyErr3RequiresViolation, gl_destroyErr5RequiresViolation]=== [2018-01-25 02:51:43,111 INFO L82 PathProgramCache]: Analyzing trace with hash 8574872, now seen corresponding path program 1 times [2018-01-25 02:51:43,114 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-25 02:51:43,170 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-25 02:51:43,171 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-25 02:51:43,171 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-25 02:51:43,171 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-25 02:51:43,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-25 02:51:43,222 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-25 02:51:43,276 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-25 02:51:43,278 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-25 02:51:43,278 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-01-25 02:51:43,278 INFO L252 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-01-25 02:51:43,281 INFO L409 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-01-25 02:51:43,292 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-01-25 02:51:43,293 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-01-25 02:51:43,295 INFO L87 Difference]: Start difference. First operand 188 states. Second operand 3 states. [2018-01-25 02:51:43,581 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-25 02:51:43,581 INFO L93 Difference]: Finished difference Result 366 states and 406 transitions. [2018-01-25 02:51:43,581 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-01-25 02:51:43,582 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 4 [2018-01-25 02:51:43,583 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-25 02:51:43,598 INFO L225 Difference]: With dead ends: 366 [2018-01-25 02:51:43,598 INFO L226 Difference]: Without dead ends: 186 [2018-01-25 02:51:43,604 INFO L525 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-01-25 02:51:43,621 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 186 states. [2018-01-25 02:51:43,646 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 186 to 185. [2018-01-25 02:51:43,647 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 185 states. [2018-01-25 02:51:43,651 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 185 states to 185 states and 196 transitions. [2018-01-25 02:51:43,654 INFO L78 Accepts]: Start accepts. Automaton has 185 states and 196 transitions. Word has length 4 [2018-01-25 02:51:43,654 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-25 02:51:43,654 INFO L432 AbstractCegarLoop]: Abstraction has 185 states and 196 transitions. [2018-01-25 02:51:43,654 INFO L433 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-01-25 02:51:43,654 INFO L276 IsEmpty]: Start isEmpty. Operand 185 states and 196 transitions. [2018-01-25 02:51:43,655 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2018-01-25 02:51:43,655 INFO L314 BasicCegarLoop]: Found error trace [2018-01-25 02:51:43,655 INFO L322 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2018-01-25 02:51:43,655 INFO L371 AbstractCegarLoop]: === Iteration 2 === [__list_addErr1RequiresViolation, __list_addErr3RequiresViolation, __list_addErr0RequiresViolation, __list_addErr2RequiresViolation, __list_addErr4RequiresViolation, __list_addErr7RequiresViolation, __list_addErr5RequiresViolation, __list_addErr6RequiresViolation, ULTIMATE.initErr3RequiresViolation, ULTIMATE.initErr1RequiresViolation, ULTIMATE.initErr2RequiresViolation, ULTIMATE.initErr0RequiresViolation, val_from_nodeErr0RequiresViolation, val_from_nodeErr1RequiresViolation, list_moveErr0RequiresViolation, list_moveErr3RequiresViolation, list_moveErr2RequiresViolation, list_moveErr1RequiresViolation, gl_sortErr16RequiresViolation, gl_sortErr4RequiresViolation, gl_sortErr12RequiresViolation, gl_sortErr5RequiresViolation, gl_sortErr0RequiresViolation, gl_sortErr11RequiresViolation, gl_sortErr9RequiresViolation, gl_sortErr2RequiresViolation, gl_sortErr18RequiresViolation, gl_sortErr7RequiresViolation, gl_sortErr13RequiresViolation, gl_sortErr14RequiresViolation, gl_sortErr19RequiresViolation, gl_sortErr6RequiresViolation, gl_sortErr1RequiresViolation, gl_sortErr17RequiresViolation, gl_sortErr15RequiresViolation, gl_sortErr10RequiresViolation, gl_sortErr8RequiresViolation, gl_sortErr3RequiresViolation, list_addErr1RequiresViolation, list_addErr0RequiresViolation, list_emptyErr0RequiresViolation, list_emptyErr1RequiresViolation, __list_delErr0RequiresViolation, __list_delErr2RequiresViolation, __list_delErr3RequiresViolation, __list_delErr1RequiresViolation, mainErr0EnsuresViolation, gl_insertErr0RequiresViolation, gl_insertErr1RequiresViolation, gl_seek_maxErr0RequiresViolation, gl_seek_maxErr2RequiresViolation, gl_seek_maxErr1RequiresViolation, gl_seek_maxErr5RequiresViolation, gl_seek_maxErr3RequiresViolation, gl_seek_maxErr4RequiresViolation, gl_destroyErr4RequiresViolation, gl_destroyErr2RequiresViolation, gl_destroyErr0RequiresViolation, gl_destroyErr1RequiresViolation, gl_destroyErr6RequiresViolation, gl_destroyErr7RequiresViolation, gl_destroyErr3RequiresViolation, gl_destroyErr5RequiresViolation]=== [2018-01-25 02:51:43,655 INFO L82 PathProgramCache]: Analyzing trace with hash 8574873, now seen corresponding path program 1 times [2018-01-25 02:51:43,656 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-25 02:51:43,657 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-25 02:51:43,657 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-25 02:51:43,657 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-25 02:51:43,657 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-25 02:51:43,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-25 02:51:43,676 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-25 02:51:43,737 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-25 02:51:43,738 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-25 02:51:43,738 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-01-25 02:51:43,738 INFO L252 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-01-25 02:51:43,740 INFO L409 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-01-25 02:51:43,740 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-01-25 02:51:43,740 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-01-25 02:51:43,740 INFO L87 Difference]: Start difference. First operand 185 states and 196 transitions. Second operand 3 states. [2018-01-25 02:51:43,915 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-25 02:51:43,915 INFO L93 Difference]: Finished difference Result 189 states and 201 transitions. [2018-01-25 02:51:43,915 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-01-25 02:51:43,915 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 4 [2018-01-25 02:51:43,916 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-25 02:51:43,918 INFO L225 Difference]: With dead ends: 189 [2018-01-25 02:51:43,918 INFO L226 Difference]: Without dead ends: 187 [2018-01-25 02:51:43,919 INFO L525 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-01-25 02:51:43,920 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 187 states. [2018-01-25 02:51:43,936 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 187 to 183. [2018-01-25 02:51:43,937 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 183 states. [2018-01-25 02:51:43,939 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 183 states to 183 states and 194 transitions. [2018-01-25 02:51:43,939 INFO L78 Accepts]: Start accepts. Automaton has 183 states and 194 transitions. Word has length 4 [2018-01-25 02:51:43,939 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-25 02:51:43,939 INFO L432 AbstractCegarLoop]: Abstraction has 183 states and 194 transitions. [2018-01-25 02:51:43,940 INFO L433 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-01-25 02:51:43,940 INFO L276 IsEmpty]: Start isEmpty. Operand 183 states and 194 transitions. [2018-01-25 02:51:43,940 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2018-01-25 02:51:43,940 INFO L314 BasicCegarLoop]: Found error trace [2018-01-25 02:51:43,941 INFO L322 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-25 02:51:43,941 INFO L371 AbstractCegarLoop]: === Iteration 3 === [__list_addErr1RequiresViolation, __list_addErr3RequiresViolation, __list_addErr0RequiresViolation, __list_addErr2RequiresViolation, __list_addErr4RequiresViolation, __list_addErr7RequiresViolation, __list_addErr5RequiresViolation, __list_addErr6RequiresViolation, ULTIMATE.initErr3RequiresViolation, ULTIMATE.initErr1RequiresViolation, ULTIMATE.initErr2RequiresViolation, ULTIMATE.initErr0RequiresViolation, val_from_nodeErr0RequiresViolation, val_from_nodeErr1RequiresViolation, list_moveErr0RequiresViolation, list_moveErr3RequiresViolation, list_moveErr2RequiresViolation, list_moveErr1RequiresViolation, gl_sortErr16RequiresViolation, gl_sortErr4RequiresViolation, gl_sortErr12RequiresViolation, gl_sortErr5RequiresViolation, gl_sortErr0RequiresViolation, gl_sortErr11RequiresViolation, gl_sortErr9RequiresViolation, gl_sortErr2RequiresViolation, gl_sortErr18RequiresViolation, gl_sortErr7RequiresViolation, gl_sortErr13RequiresViolation, gl_sortErr14RequiresViolation, gl_sortErr19RequiresViolation, gl_sortErr6RequiresViolation, gl_sortErr1RequiresViolation, gl_sortErr17RequiresViolation, gl_sortErr15RequiresViolation, gl_sortErr10RequiresViolation, gl_sortErr8RequiresViolation, gl_sortErr3RequiresViolation, list_addErr1RequiresViolation, list_addErr0RequiresViolation, list_emptyErr0RequiresViolation, list_emptyErr1RequiresViolation, __list_delErr0RequiresViolation, __list_delErr2RequiresViolation, __list_delErr3RequiresViolation, __list_delErr1RequiresViolation, mainErr0EnsuresViolation, gl_insertErr0RequiresViolation, gl_insertErr1RequiresViolation, gl_seek_maxErr0RequiresViolation, gl_seek_maxErr2RequiresViolation, gl_seek_maxErr1RequiresViolation, gl_seek_maxErr5RequiresViolation, gl_seek_maxErr3RequiresViolation, gl_seek_maxErr4RequiresViolation, gl_destroyErr4RequiresViolation, gl_destroyErr2RequiresViolation, gl_destroyErr0RequiresViolation, gl_destroyErr1RequiresViolation, gl_destroyErr6RequiresViolation, gl_destroyErr7RequiresViolation, gl_destroyErr3RequiresViolation, gl_destroyErr5RequiresViolation]=== [2018-01-25 02:51:43,941 INFO L82 PathProgramCache]: Analyzing trace with hash 1609065266, now seen corresponding path program 1 times [2018-01-25 02:51:43,941 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-25 02:51:43,942 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-25 02:51:43,942 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-25 02:51:43,943 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-25 02:51:43,943 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-25 02:51:43,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-25 02:51:43,967 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-25 02:51:44,020 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-25 02:51:44,021 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-25 02:51:44,021 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-01-25 02:51:44,021 INFO L252 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-01-25 02:51:44,021 INFO L409 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-01-25 02:51:44,022 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-01-25 02:51:44,022 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-01-25 02:51:44,022 INFO L87 Difference]: Start difference. First operand 183 states and 194 transitions. Second operand 4 states. [2018-01-25 02:51:44,168 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-25 02:51:44,168 INFO L93 Difference]: Finished difference Result 183 states and 194 transitions. [2018-01-25 02:51:44,168 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-01-25 02:51:44,168 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 16 [2018-01-25 02:51:44,169 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-25 02:51:44,170 INFO L225 Difference]: With dead ends: 183 [2018-01-25 02:51:44,170 INFO L226 Difference]: Without dead ends: 182 [2018-01-25 02:51:44,170 INFO L525 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-01-25 02:51:44,171 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 182 states. [2018-01-25 02:51:44,185 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 182 to 182. [2018-01-25 02:51:44,186 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 182 states. [2018-01-25 02:51:44,188 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 182 states to 182 states and 193 transitions. [2018-01-25 02:51:44,188 INFO L78 Accepts]: Start accepts. Automaton has 182 states and 193 transitions. Word has length 16 [2018-01-25 02:51:44,188 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-25 02:51:44,188 INFO L432 AbstractCegarLoop]: Abstraction has 182 states and 193 transitions. [2018-01-25 02:51:44,189 INFO L433 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-01-25 02:51:44,189 INFO L276 IsEmpty]: Start isEmpty. Operand 182 states and 193 transitions. [2018-01-25 02:51:44,189 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2018-01-25 02:51:44,189 INFO L314 BasicCegarLoop]: Found error trace [2018-01-25 02:51:44,190 INFO L322 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-25 02:51:44,190 INFO L371 AbstractCegarLoop]: === Iteration 4 === [__list_addErr1RequiresViolation, __list_addErr3RequiresViolation, __list_addErr0RequiresViolation, __list_addErr2RequiresViolation, __list_addErr4RequiresViolation, __list_addErr7RequiresViolation, __list_addErr5RequiresViolation, __list_addErr6RequiresViolation, ULTIMATE.initErr3RequiresViolation, ULTIMATE.initErr1RequiresViolation, ULTIMATE.initErr2RequiresViolation, ULTIMATE.initErr0RequiresViolation, val_from_nodeErr0RequiresViolation, val_from_nodeErr1RequiresViolation, list_moveErr0RequiresViolation, list_moveErr3RequiresViolation, list_moveErr2RequiresViolation, list_moveErr1RequiresViolation, gl_sortErr16RequiresViolation, gl_sortErr4RequiresViolation, gl_sortErr12RequiresViolation, gl_sortErr5RequiresViolation, gl_sortErr0RequiresViolation, gl_sortErr11RequiresViolation, gl_sortErr9RequiresViolation, gl_sortErr2RequiresViolation, gl_sortErr18RequiresViolation, gl_sortErr7RequiresViolation, gl_sortErr13RequiresViolation, gl_sortErr14RequiresViolation, gl_sortErr19RequiresViolation, gl_sortErr6RequiresViolation, gl_sortErr1RequiresViolation, gl_sortErr17RequiresViolation, gl_sortErr15RequiresViolation, gl_sortErr10RequiresViolation, gl_sortErr8RequiresViolation, gl_sortErr3RequiresViolation, list_addErr1RequiresViolation, list_addErr0RequiresViolation, list_emptyErr0RequiresViolation, list_emptyErr1RequiresViolation, __list_delErr0RequiresViolation, __list_delErr2RequiresViolation, __list_delErr3RequiresViolation, __list_delErr1RequiresViolation, mainErr0EnsuresViolation, gl_insertErr0RequiresViolation, gl_insertErr1RequiresViolation, gl_seek_maxErr0RequiresViolation, gl_seek_maxErr2RequiresViolation, gl_seek_maxErr1RequiresViolation, gl_seek_maxErr5RequiresViolation, gl_seek_maxErr3RequiresViolation, gl_seek_maxErr4RequiresViolation, gl_destroyErr4RequiresViolation, gl_destroyErr2RequiresViolation, gl_destroyErr0RequiresViolation, gl_destroyErr1RequiresViolation, gl_destroyErr6RequiresViolation, gl_destroyErr7RequiresViolation, gl_destroyErr3RequiresViolation, gl_destroyErr5RequiresViolation]=== [2018-01-25 02:51:44,190 INFO L82 PathProgramCache]: Analyzing trace with hash 1609065267, now seen corresponding path program 1 times [2018-01-25 02:51:44,190 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-25 02:51:44,191 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-25 02:51:44,191 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-25 02:51:44,192 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-25 02:51:44,192 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-25 02:51:44,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-25 02:51:44,214 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-25 02:51:44,312 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-25 02:51:44,313 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-25 02:51:44,313 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-01-25 02:51:44,313 INFO L252 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-01-25 02:51:44,313 INFO L409 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-01-25 02:51:44,314 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-01-25 02:51:44,314 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-01-25 02:51:44,314 INFO L87 Difference]: Start difference. First operand 182 states and 193 transitions. Second operand 4 states. [2018-01-25 02:51:44,507 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-25 02:51:44,507 INFO L93 Difference]: Finished difference Result 182 states and 193 transitions. [2018-01-25 02:51:44,508 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-01-25 02:51:44,508 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 16 [2018-01-25 02:51:44,508 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-25 02:51:44,509 INFO L225 Difference]: With dead ends: 182 [2018-01-25 02:51:44,509 INFO L226 Difference]: Without dead ends: 181 [2018-01-25 02:51:44,510 INFO L525 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-01-25 02:51:44,510 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 181 states. [2018-01-25 02:51:44,519 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 181 to 181. [2018-01-25 02:51:44,519 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 181 states. [2018-01-25 02:51:44,521 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 181 states to 181 states and 192 transitions. [2018-01-25 02:51:44,522 INFO L78 Accepts]: Start accepts. Automaton has 181 states and 192 transitions. Word has length 16 [2018-01-25 02:51:44,522 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-25 02:51:44,522 INFO L432 AbstractCegarLoop]: Abstraction has 181 states and 192 transitions. [2018-01-25 02:51:44,522 INFO L433 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-01-25 02:51:44,522 INFO L276 IsEmpty]: Start isEmpty. Operand 181 states and 192 transitions. [2018-01-25 02:51:44,523 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2018-01-25 02:51:44,523 INFO L314 BasicCegarLoop]: Found error trace [2018-01-25 02:51:44,523 INFO L322 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-25 02:51:44,523 INFO L371 AbstractCegarLoop]: === Iteration 5 === [__list_addErr1RequiresViolation, __list_addErr3RequiresViolation, __list_addErr0RequiresViolation, __list_addErr2RequiresViolation, __list_addErr4RequiresViolation, __list_addErr7RequiresViolation, __list_addErr5RequiresViolation, __list_addErr6RequiresViolation, ULTIMATE.initErr3RequiresViolation, ULTIMATE.initErr1RequiresViolation, ULTIMATE.initErr2RequiresViolation, ULTIMATE.initErr0RequiresViolation, val_from_nodeErr0RequiresViolation, val_from_nodeErr1RequiresViolation, list_moveErr0RequiresViolation, list_moveErr3RequiresViolation, list_moveErr2RequiresViolation, list_moveErr1RequiresViolation, gl_sortErr16RequiresViolation, gl_sortErr4RequiresViolation, gl_sortErr12RequiresViolation, gl_sortErr5RequiresViolation, gl_sortErr0RequiresViolation, gl_sortErr11RequiresViolation, gl_sortErr9RequiresViolation, gl_sortErr2RequiresViolation, gl_sortErr18RequiresViolation, gl_sortErr7RequiresViolation, gl_sortErr13RequiresViolation, gl_sortErr14RequiresViolation, gl_sortErr19RequiresViolation, gl_sortErr6RequiresViolation, gl_sortErr1RequiresViolation, gl_sortErr17RequiresViolation, gl_sortErr15RequiresViolation, gl_sortErr10RequiresViolation, gl_sortErr8RequiresViolation, gl_sortErr3RequiresViolation, list_addErr1RequiresViolation, list_addErr0RequiresViolation, list_emptyErr0RequiresViolation, list_emptyErr1RequiresViolation, __list_delErr0RequiresViolation, __list_delErr2RequiresViolation, __list_delErr3RequiresViolation, __list_delErr1RequiresViolation, mainErr0EnsuresViolation, gl_insertErr0RequiresViolation, gl_insertErr1RequiresViolation, gl_seek_maxErr0RequiresViolation, gl_seek_maxErr2RequiresViolation, gl_seek_maxErr1RequiresViolation, gl_seek_maxErr5RequiresViolation, gl_seek_maxErr3RequiresViolation, gl_seek_maxErr4RequiresViolation, gl_destroyErr4RequiresViolation, gl_destroyErr2RequiresViolation, gl_destroyErr0RequiresViolation, gl_destroyErr1RequiresViolation, gl_destroyErr6RequiresViolation, gl_destroyErr7RequiresViolation, gl_destroyErr3RequiresViolation, gl_destroyErr5RequiresViolation]=== [2018-01-25 02:51:44,523 INFO L82 PathProgramCache]: Analyzing trace with hash -466429743, now seen corresponding path program 1 times [2018-01-25 02:51:44,524 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-25 02:51:44,525 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-25 02:51:44,525 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-25 02:51:44,525 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-25 02:51:44,525 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-25 02:51:44,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-25 02:51:44,550 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-25 02:51:44,666 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-25 02:51:44,666 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-25 02:51:44,666 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-01-25 02:51:44,666 INFO L252 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-01-25 02:51:44,667 INFO L409 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-01-25 02:51:44,667 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-01-25 02:51:44,667 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2018-01-25 02:51:44,667 INFO L87 Difference]: Start difference. First operand 181 states and 192 transitions. Second operand 7 states. [2018-01-25 02:51:45,051 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-25 02:51:45,051 INFO L93 Difference]: Finished difference Result 190 states and 200 transitions. [2018-01-25 02:51:45,051 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-01-25 02:51:45,051 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 19 [2018-01-25 02:51:45,051 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-25 02:51:45,053 INFO L225 Difference]: With dead ends: 190 [2018-01-25 02:51:45,053 INFO L226 Difference]: Without dead ends: 189 [2018-01-25 02:51:45,053 INFO L525 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2018-01-25 02:51:45,053 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 189 states. [2018-01-25 02:51:45,063 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 189 to 187. [2018-01-25 02:51:45,063 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 187 states. [2018-01-25 02:51:45,065 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 187 states to 187 states and 199 transitions. [2018-01-25 02:51:45,065 INFO L78 Accepts]: Start accepts. Automaton has 187 states and 199 transitions. Word has length 19 [2018-01-25 02:51:45,065 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-25 02:51:45,065 INFO L432 AbstractCegarLoop]: Abstraction has 187 states and 199 transitions. [2018-01-25 02:51:45,065 INFO L433 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-01-25 02:51:45,065 INFO L276 IsEmpty]: Start isEmpty. Operand 187 states and 199 transitions. [2018-01-25 02:51:45,066 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2018-01-25 02:51:45,066 INFO L314 BasicCegarLoop]: Found error trace [2018-01-25 02:51:45,066 INFO L322 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-25 02:51:45,066 INFO L371 AbstractCegarLoop]: === Iteration 6 === [__list_addErr1RequiresViolation, __list_addErr3RequiresViolation, __list_addErr0RequiresViolation, __list_addErr2RequiresViolation, __list_addErr4RequiresViolation, __list_addErr7RequiresViolation, __list_addErr5RequiresViolation, __list_addErr6RequiresViolation, ULTIMATE.initErr3RequiresViolation, ULTIMATE.initErr1RequiresViolation, ULTIMATE.initErr2RequiresViolation, ULTIMATE.initErr0RequiresViolation, val_from_nodeErr0RequiresViolation, val_from_nodeErr1RequiresViolation, list_moveErr0RequiresViolation, list_moveErr3RequiresViolation, list_moveErr2RequiresViolation, list_moveErr1RequiresViolation, gl_sortErr16RequiresViolation, gl_sortErr4RequiresViolation, gl_sortErr12RequiresViolation, gl_sortErr5RequiresViolation, gl_sortErr0RequiresViolation, gl_sortErr11RequiresViolation, gl_sortErr9RequiresViolation, gl_sortErr2RequiresViolation, gl_sortErr18RequiresViolation, gl_sortErr7RequiresViolation, gl_sortErr13RequiresViolation, gl_sortErr14RequiresViolation, gl_sortErr19RequiresViolation, gl_sortErr6RequiresViolation, gl_sortErr1RequiresViolation, gl_sortErr17RequiresViolation, gl_sortErr15RequiresViolation, gl_sortErr10RequiresViolation, gl_sortErr8RequiresViolation, gl_sortErr3RequiresViolation, list_addErr1RequiresViolation, list_addErr0RequiresViolation, list_emptyErr0RequiresViolation, list_emptyErr1RequiresViolation, __list_delErr0RequiresViolation, __list_delErr2RequiresViolation, __list_delErr3RequiresViolation, __list_delErr1RequiresViolation, mainErr0EnsuresViolation, gl_insertErr0RequiresViolation, gl_insertErr1RequiresViolation, gl_seek_maxErr0RequiresViolation, gl_seek_maxErr2RequiresViolation, gl_seek_maxErr1RequiresViolation, gl_seek_maxErr5RequiresViolation, gl_seek_maxErr3RequiresViolation, gl_seek_maxErr4RequiresViolation, gl_destroyErr4RequiresViolation, gl_destroyErr2RequiresViolation, gl_destroyErr0RequiresViolation, gl_destroyErr1RequiresViolation, gl_destroyErr6RequiresViolation, gl_destroyErr7RequiresViolation, gl_destroyErr3RequiresViolation, gl_destroyErr5RequiresViolation]=== [2018-01-25 02:51:45,066 INFO L82 PathProgramCache]: Analyzing trace with hash -466429742, now seen corresponding path program 1 times [2018-01-25 02:51:45,066 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-25 02:51:45,067 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-25 02:51:45,067 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-25 02:51:45,067 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-25 02:51:45,067 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-25 02:51:45,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-25 02:51:45,087 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-25 02:51:45,163 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-25 02:51:45,164 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-25 02:51:45,164 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-01-25 02:51:45,164 INFO L252 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-01-25 02:51:45,164 INFO L409 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-01-25 02:51:45,165 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-01-25 02:51:45,165 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2018-01-25 02:51:45,165 INFO L87 Difference]: Start difference. First operand 187 states and 199 transitions. Second operand 7 states. [2018-01-25 02:51:45,574 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-25 02:51:45,574 INFO L93 Difference]: Finished difference Result 188 states and 199 transitions. [2018-01-25 02:51:45,575 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-01-25 02:51:45,575 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 19 [2018-01-25 02:51:45,575 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-25 02:51:45,576 INFO L225 Difference]: With dead ends: 188 [2018-01-25 02:51:45,577 INFO L226 Difference]: Without dead ends: 182 [2018-01-25 02:51:45,577 INFO L525 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2018-01-25 02:51:45,577 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 182 states. [2018-01-25 02:51:45,587 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 182 to 182. [2018-01-25 02:51:45,587 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 182 states. [2018-01-25 02:51:45,589 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 182 states to 182 states and 192 transitions. [2018-01-25 02:51:45,589 INFO L78 Accepts]: Start accepts. Automaton has 182 states and 192 transitions. Word has length 19 [2018-01-25 02:51:45,590 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-25 02:51:45,590 INFO L432 AbstractCegarLoop]: Abstraction has 182 states and 192 transitions. [2018-01-25 02:51:45,590 INFO L433 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-01-25 02:51:45,590 INFO L276 IsEmpty]: Start isEmpty. Operand 182 states and 192 transitions. [2018-01-25 02:51:45,591 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2018-01-25 02:51:45,591 INFO L314 BasicCegarLoop]: Found error trace [2018-01-25 02:51:45,591 INFO L322 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-25 02:51:45,591 INFO L371 AbstractCegarLoop]: === Iteration 7 === [__list_addErr1RequiresViolation, __list_addErr3RequiresViolation, __list_addErr0RequiresViolation, __list_addErr2RequiresViolation, __list_addErr4RequiresViolation, __list_addErr7RequiresViolation, __list_addErr5RequiresViolation, __list_addErr6RequiresViolation, ULTIMATE.initErr3RequiresViolation, ULTIMATE.initErr1RequiresViolation, ULTIMATE.initErr2RequiresViolation, ULTIMATE.initErr0RequiresViolation, val_from_nodeErr0RequiresViolation, val_from_nodeErr1RequiresViolation, list_moveErr0RequiresViolation, list_moveErr3RequiresViolation, list_moveErr2RequiresViolation, list_moveErr1RequiresViolation, gl_sortErr16RequiresViolation, gl_sortErr4RequiresViolation, gl_sortErr12RequiresViolation, gl_sortErr5RequiresViolation, gl_sortErr0RequiresViolation, gl_sortErr11RequiresViolation, gl_sortErr9RequiresViolation, gl_sortErr2RequiresViolation, gl_sortErr18RequiresViolation, gl_sortErr7RequiresViolation, gl_sortErr13RequiresViolation, gl_sortErr14RequiresViolation, gl_sortErr19RequiresViolation, gl_sortErr6RequiresViolation, gl_sortErr1RequiresViolation, gl_sortErr17RequiresViolation, gl_sortErr15RequiresViolation, gl_sortErr10RequiresViolation, gl_sortErr8RequiresViolation, gl_sortErr3RequiresViolation, list_addErr1RequiresViolation, list_addErr0RequiresViolation, list_emptyErr0RequiresViolation, list_emptyErr1RequiresViolation, __list_delErr0RequiresViolation, __list_delErr2RequiresViolation, __list_delErr3RequiresViolation, __list_delErr1RequiresViolation, mainErr0EnsuresViolation, gl_insertErr0RequiresViolation, gl_insertErr1RequiresViolation, gl_seek_maxErr0RequiresViolation, gl_seek_maxErr2RequiresViolation, gl_seek_maxErr1RequiresViolation, gl_seek_maxErr5RequiresViolation, gl_seek_maxErr3RequiresViolation, gl_seek_maxErr4RequiresViolation, gl_destroyErr4RequiresViolation, gl_destroyErr2RequiresViolation, gl_destroyErr0RequiresViolation, gl_destroyErr1RequiresViolation, gl_destroyErr6RequiresViolation, gl_destroyErr7RequiresViolation, gl_destroyErr3RequiresViolation, gl_destroyErr5RequiresViolation]=== [2018-01-25 02:51:45,592 INFO L82 PathProgramCache]: Analyzing trace with hash -1189060692, now seen corresponding path program 1 times [2018-01-25 02:51:45,592 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-25 02:51:45,593 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-25 02:51:45,593 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-25 02:51:45,593 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-25 02:51:45,594 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-25 02:51:45,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-25 02:51:45,616 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-25 02:51:45,756 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-25 02:51:45,756 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-25 02:51:45,757 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2018-01-25 02:51:45,757 INFO L252 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-01-25 02:51:45,757 INFO L409 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-01-25 02:51:45,757 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-01-25 02:51:45,757 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2018-01-25 02:51:45,757 INFO L87 Difference]: Start difference. First operand 182 states and 192 transitions. Second operand 10 states. [2018-01-25 02:51:46,144 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-25 02:51:46,172 INFO L93 Difference]: Finished difference Result 209 states and 221 transitions. [2018-01-25 02:51:46,172 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2018-01-25 02:51:46,173 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 22 [2018-01-25 02:51:46,173 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-25 02:51:46,174 INFO L225 Difference]: With dead ends: 209 [2018-01-25 02:51:46,174 INFO L226 Difference]: Without dead ends: 208 [2018-01-25 02:51:46,175 INFO L525 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 2 SyntacticMatches, 4 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=60, Invalid=246, Unknown=0, NotChecked=0, Total=306 [2018-01-25 02:51:46,175 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 208 states. [2018-01-25 02:51:46,188 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 208 to 200. [2018-01-25 02:51:46,188 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 200 states. [2018-01-25 02:51:46,189 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 200 states to 200 states and 219 transitions. [2018-01-25 02:51:46,190 INFO L78 Accepts]: Start accepts. Automaton has 200 states and 219 transitions. Word has length 22 [2018-01-25 02:51:46,190 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-25 02:51:46,190 INFO L432 AbstractCegarLoop]: Abstraction has 200 states and 219 transitions. [2018-01-25 02:51:46,190 INFO L433 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-01-25 02:51:46,190 INFO L276 IsEmpty]: Start isEmpty. Operand 200 states and 219 transitions. [2018-01-25 02:51:46,191 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2018-01-25 02:51:46,191 INFO L314 BasicCegarLoop]: Found error trace [2018-01-25 02:51:46,191 INFO L322 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-25 02:51:46,191 INFO L371 AbstractCegarLoop]: === Iteration 8 === [__list_addErr1RequiresViolation, __list_addErr3RequiresViolation, __list_addErr0RequiresViolation, __list_addErr2RequiresViolation, __list_addErr4RequiresViolation, __list_addErr7RequiresViolation, __list_addErr5RequiresViolation, __list_addErr6RequiresViolation, ULTIMATE.initErr3RequiresViolation, ULTIMATE.initErr1RequiresViolation, ULTIMATE.initErr2RequiresViolation, ULTIMATE.initErr0RequiresViolation, val_from_nodeErr0RequiresViolation, val_from_nodeErr1RequiresViolation, list_moveErr0RequiresViolation, list_moveErr3RequiresViolation, list_moveErr2RequiresViolation, list_moveErr1RequiresViolation, gl_sortErr16RequiresViolation, gl_sortErr4RequiresViolation, gl_sortErr12RequiresViolation, gl_sortErr5RequiresViolation, gl_sortErr0RequiresViolation, gl_sortErr11RequiresViolation, gl_sortErr9RequiresViolation, gl_sortErr2RequiresViolation, gl_sortErr18RequiresViolation, gl_sortErr7RequiresViolation, gl_sortErr13RequiresViolation, gl_sortErr14RequiresViolation, gl_sortErr19RequiresViolation, gl_sortErr6RequiresViolation, gl_sortErr1RequiresViolation, gl_sortErr17RequiresViolation, gl_sortErr15RequiresViolation, gl_sortErr10RequiresViolation, gl_sortErr8RequiresViolation, gl_sortErr3RequiresViolation, list_addErr1RequiresViolation, list_addErr0RequiresViolation, list_emptyErr0RequiresViolation, list_emptyErr1RequiresViolation, __list_delErr0RequiresViolation, __list_delErr2RequiresViolation, __list_delErr3RequiresViolation, __list_delErr1RequiresViolation, mainErr0EnsuresViolation, gl_insertErr0RequiresViolation, gl_insertErr1RequiresViolation, gl_seek_maxErr0RequiresViolation, gl_seek_maxErr2RequiresViolation, gl_seek_maxErr1RequiresViolation, gl_seek_maxErr5RequiresViolation, gl_seek_maxErr3RequiresViolation, gl_seek_maxErr4RequiresViolation, gl_destroyErr4RequiresViolation, gl_destroyErr2RequiresViolation, gl_destroyErr0RequiresViolation, gl_destroyErr1RequiresViolation, gl_destroyErr6RequiresViolation, gl_destroyErr7RequiresViolation, gl_destroyErr3RequiresViolation, gl_destroyErr5RequiresViolation]=== [2018-01-25 02:51:46,191 INFO L82 PathProgramCache]: Analyzing trace with hash -1189060691, now seen corresponding path program 1 times [2018-01-25 02:51:46,191 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-25 02:51:46,192 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-25 02:51:46,192 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-25 02:51:46,192 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-25 02:51:46,192 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-25 02:51:46,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-25 02:51:46,213 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-25 02:51:46,459 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-25 02:51:46,459 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-25 02:51:46,460 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2018-01-25 02:51:46,460 INFO L252 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-01-25 02:51:46,460 INFO L409 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-01-25 02:51:46,460 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-01-25 02:51:46,460 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2018-01-25 02:51:46,460 INFO L87 Difference]: Start difference. First operand 200 states and 219 transitions. Second operand 11 states. [2018-01-25 02:51:48,011 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-25 02:51:48,011 INFO L93 Difference]: Finished difference Result 373 states and 393 transitions. [2018-01-25 02:51:48,024 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2018-01-25 02:51:48,024 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 22 [2018-01-25 02:51:48,025 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-25 02:51:48,027 INFO L225 Difference]: With dead ends: 373 [2018-01-25 02:51:48,028 INFO L226 Difference]: Without dead ends: 372 [2018-01-25 02:51:48,028 INFO L525 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 2 SyntacticMatches, 4 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=86, Invalid=334, Unknown=0, NotChecked=0, Total=420 [2018-01-25 02:51:48,029 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 372 states. [2018-01-25 02:51:48,076 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 372 to 296. [2018-01-25 02:51:48,076 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 296 states. [2018-01-25 02:51:48,079 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 296 states to 296 states and 362 transitions. [2018-01-25 02:51:48,079 INFO L78 Accepts]: Start accepts. Automaton has 296 states and 362 transitions. Word has length 22 [2018-01-25 02:51:48,085 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-25 02:51:48,085 INFO L432 AbstractCegarLoop]: Abstraction has 296 states and 362 transitions. [2018-01-25 02:51:48,085 INFO L433 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-01-25 02:51:48,085 INFO L276 IsEmpty]: Start isEmpty. Operand 296 states and 362 transitions. [2018-01-25 02:51:48,086 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2018-01-25 02:51:48,086 INFO L314 BasicCegarLoop]: Found error trace [2018-01-25 02:51:48,086 INFO L322 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-25 02:51:48,086 INFO L371 AbstractCegarLoop]: === Iteration 9 === [__list_addErr1RequiresViolation, __list_addErr3RequiresViolation, __list_addErr0RequiresViolation, __list_addErr2RequiresViolation, __list_addErr4RequiresViolation, __list_addErr7RequiresViolation, __list_addErr5RequiresViolation, __list_addErr6RequiresViolation, ULTIMATE.initErr3RequiresViolation, ULTIMATE.initErr1RequiresViolation, ULTIMATE.initErr2RequiresViolation, ULTIMATE.initErr0RequiresViolation, val_from_nodeErr0RequiresViolation, val_from_nodeErr1RequiresViolation, list_moveErr0RequiresViolation, list_moveErr3RequiresViolation, list_moveErr2RequiresViolation, list_moveErr1RequiresViolation, gl_sortErr16RequiresViolation, gl_sortErr4RequiresViolation, gl_sortErr12RequiresViolation, gl_sortErr5RequiresViolation, gl_sortErr0RequiresViolation, gl_sortErr11RequiresViolation, gl_sortErr9RequiresViolation, gl_sortErr2RequiresViolation, gl_sortErr18RequiresViolation, gl_sortErr7RequiresViolation, gl_sortErr13RequiresViolation, gl_sortErr14RequiresViolation, gl_sortErr19RequiresViolation, gl_sortErr6RequiresViolation, gl_sortErr1RequiresViolation, gl_sortErr17RequiresViolation, gl_sortErr15RequiresViolation, gl_sortErr10RequiresViolation, gl_sortErr8RequiresViolation, gl_sortErr3RequiresViolation, list_addErr1RequiresViolation, list_addErr0RequiresViolation, list_emptyErr0RequiresViolation, list_emptyErr1RequiresViolation, __list_delErr0RequiresViolation, __list_delErr2RequiresViolation, __list_delErr3RequiresViolation, __list_delErr1RequiresViolation, mainErr0EnsuresViolation, gl_insertErr0RequiresViolation, gl_insertErr1RequiresViolation, gl_seek_maxErr0RequiresViolation, gl_seek_maxErr2RequiresViolation, gl_seek_maxErr1RequiresViolation, gl_seek_maxErr5RequiresViolation, gl_seek_maxErr3RequiresViolation, gl_seek_maxErr4RequiresViolation, gl_destroyErr4RequiresViolation, gl_destroyErr2RequiresViolation, gl_destroyErr0RequiresViolation, gl_destroyErr1RequiresViolation, gl_destroyErr6RequiresViolation, gl_destroyErr7RequiresViolation, gl_destroyErr3RequiresViolation, gl_destroyErr5RequiresViolation]=== [2018-01-25 02:51:48,086 INFO L82 PathProgramCache]: Analyzing trace with hash 1793824186, now seen corresponding path program 1 times [2018-01-25 02:51:48,086 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-25 02:51:48,087 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-25 02:51:48,088 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-25 02:51:48,088 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-25 02:51:48,088 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-25 02:51:48,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-25 02:51:48,140 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-25 02:51:48,261 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-25 02:51:48,261 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-25 02:51:48,261 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-01-25 02:51:48,261 INFO L252 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-01-25 02:51:48,262 INFO L409 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-01-25 02:51:48,262 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-01-25 02:51:48,262 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-01-25 02:51:48,262 INFO L87 Difference]: Start difference. First operand 296 states and 362 transitions. Second operand 7 states. [2018-01-25 02:51:48,639 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-25 02:51:48,640 INFO L93 Difference]: Finished difference Result 310 states and 376 transitions. [2018-01-25 02:51:48,640 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-01-25 02:51:48,640 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 23 [2018-01-25 02:51:48,640 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-25 02:51:48,642 INFO L225 Difference]: With dead ends: 310 [2018-01-25 02:51:48,642 INFO L226 Difference]: Without dead ends: 308 [2018-01-25 02:51:48,643 INFO L525 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2018-01-25 02:51:48,643 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 308 states. [2018-01-25 02:51:48,661 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 308 to 211. [2018-01-25 02:51:48,661 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 211 states. [2018-01-25 02:51:48,663 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 211 states to 211 states and 230 transitions. [2018-01-25 02:51:48,664 INFO L78 Accepts]: Start accepts. Automaton has 211 states and 230 transitions. Word has length 23 [2018-01-25 02:51:48,664 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-25 02:51:48,664 INFO L432 AbstractCegarLoop]: Abstraction has 211 states and 230 transitions. [2018-01-25 02:51:48,664 INFO L433 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-01-25 02:51:48,664 INFO L276 IsEmpty]: Start isEmpty. Operand 211 states and 230 transitions. [2018-01-25 02:51:48,665 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2018-01-25 02:51:48,665 INFO L314 BasicCegarLoop]: Found error trace [2018-01-25 02:51:48,665 INFO L322 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-25 02:51:48,665 INFO L371 AbstractCegarLoop]: === Iteration 10 === [__list_addErr1RequiresViolation, __list_addErr3RequiresViolation, __list_addErr0RequiresViolation, __list_addErr2RequiresViolation, __list_addErr4RequiresViolation, __list_addErr7RequiresViolation, __list_addErr5RequiresViolation, __list_addErr6RequiresViolation, ULTIMATE.initErr3RequiresViolation, ULTIMATE.initErr1RequiresViolation, ULTIMATE.initErr2RequiresViolation, ULTIMATE.initErr0RequiresViolation, val_from_nodeErr0RequiresViolation, val_from_nodeErr1RequiresViolation, list_moveErr0RequiresViolation, list_moveErr3RequiresViolation, list_moveErr2RequiresViolation, list_moveErr1RequiresViolation, gl_sortErr16RequiresViolation, gl_sortErr4RequiresViolation, gl_sortErr12RequiresViolation, gl_sortErr5RequiresViolation, gl_sortErr0RequiresViolation, gl_sortErr11RequiresViolation, gl_sortErr9RequiresViolation, gl_sortErr2RequiresViolation, gl_sortErr18RequiresViolation, gl_sortErr7RequiresViolation, gl_sortErr13RequiresViolation, gl_sortErr14RequiresViolation, gl_sortErr19RequiresViolation, gl_sortErr6RequiresViolation, gl_sortErr1RequiresViolation, gl_sortErr17RequiresViolation, gl_sortErr15RequiresViolation, gl_sortErr10RequiresViolation, gl_sortErr8RequiresViolation, gl_sortErr3RequiresViolation, list_addErr1RequiresViolation, list_addErr0RequiresViolation, list_emptyErr0RequiresViolation, list_emptyErr1RequiresViolation, __list_delErr0RequiresViolation, __list_delErr2RequiresViolation, __list_delErr3RequiresViolation, __list_delErr1RequiresViolation, mainErr0EnsuresViolation, gl_insertErr0RequiresViolation, gl_insertErr1RequiresViolation, gl_seek_maxErr0RequiresViolation, gl_seek_maxErr2RequiresViolation, gl_seek_maxErr1RequiresViolation, gl_seek_maxErr5RequiresViolation, gl_seek_maxErr3RequiresViolation, gl_seek_maxErr4RequiresViolation, gl_destroyErr4RequiresViolation, gl_destroyErr2RequiresViolation, gl_destroyErr0RequiresViolation, gl_destroyErr1RequiresViolation, gl_destroyErr6RequiresViolation, gl_destroyErr7RequiresViolation, gl_destroyErr3RequiresViolation, gl_destroyErr5RequiresViolation]=== [2018-01-25 02:51:48,665 INFO L82 PathProgramCache]: Analyzing trace with hash 1793824187, now seen corresponding path program 1 times [2018-01-25 02:51:48,665 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-25 02:51:48,666 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-25 02:51:48,666 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-25 02:51:48,667 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-25 02:51:48,667 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-25 02:51:48,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-25 02:51:48,682 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-25 02:51:48,833 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-25 02:51:48,833 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-25 02:51:48,834 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-01-25 02:51:48,834 INFO L252 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-01-25 02:51:48,834 INFO L409 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-01-25 02:51:48,834 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-01-25 02:51:48,835 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2018-01-25 02:51:48,835 INFO L87 Difference]: Start difference. First operand 211 states and 230 transitions. Second operand 8 states. [2018-01-25 02:51:49,357 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-25 02:51:49,358 INFO L93 Difference]: Finished difference Result 217 states and 230 transitions. [2018-01-25 02:51:49,358 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-01-25 02:51:49,358 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 23 [2018-01-25 02:51:49,358 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-25 02:51:49,360 INFO L225 Difference]: With dead ends: 217 [2018-01-25 02:51:49,360 INFO L226 Difference]: Without dead ends: 215 [2018-01-25 02:51:49,360 INFO L525 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2018-01-25 02:51:49,360 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 215 states. [2018-01-25 02:51:49,373 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 215 to 211. [2018-01-25 02:51:49,373 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 211 states. [2018-01-25 02:51:49,375 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 211 states to 211 states and 226 transitions. [2018-01-25 02:51:49,375 INFO L78 Accepts]: Start accepts. Automaton has 211 states and 226 transitions. Word has length 23 [2018-01-25 02:51:49,375 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-25 02:51:49,376 INFO L432 AbstractCegarLoop]: Abstraction has 211 states and 226 transitions. [2018-01-25 02:51:49,376 INFO L433 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-01-25 02:51:49,376 INFO L276 IsEmpty]: Start isEmpty. Operand 211 states and 226 transitions. [2018-01-25 02:51:49,376 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2018-01-25 02:51:49,376 INFO L314 BasicCegarLoop]: Found error trace [2018-01-25 02:51:49,377 INFO L322 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-25 02:51:49,377 INFO L371 AbstractCegarLoop]: === Iteration 11 === [__list_addErr1RequiresViolation, __list_addErr3RequiresViolation, __list_addErr0RequiresViolation, __list_addErr2RequiresViolation, __list_addErr4RequiresViolation, __list_addErr7RequiresViolation, __list_addErr5RequiresViolation, __list_addErr6RequiresViolation, ULTIMATE.initErr3RequiresViolation, ULTIMATE.initErr1RequiresViolation, ULTIMATE.initErr2RequiresViolation, ULTIMATE.initErr0RequiresViolation, val_from_nodeErr0RequiresViolation, val_from_nodeErr1RequiresViolation, list_moveErr0RequiresViolation, list_moveErr3RequiresViolation, list_moveErr2RequiresViolation, list_moveErr1RequiresViolation, gl_sortErr16RequiresViolation, gl_sortErr4RequiresViolation, gl_sortErr12RequiresViolation, gl_sortErr5RequiresViolation, gl_sortErr0RequiresViolation, gl_sortErr11RequiresViolation, gl_sortErr9RequiresViolation, gl_sortErr2RequiresViolation, gl_sortErr18RequiresViolation, gl_sortErr7RequiresViolation, gl_sortErr13RequiresViolation, gl_sortErr14RequiresViolation, gl_sortErr19RequiresViolation, gl_sortErr6RequiresViolation, gl_sortErr1RequiresViolation, gl_sortErr17RequiresViolation, gl_sortErr15RequiresViolation, gl_sortErr10RequiresViolation, gl_sortErr8RequiresViolation, gl_sortErr3RequiresViolation, list_addErr1RequiresViolation, list_addErr0RequiresViolation, list_emptyErr0RequiresViolation, list_emptyErr1RequiresViolation, __list_delErr0RequiresViolation, __list_delErr2RequiresViolation, __list_delErr3RequiresViolation, __list_delErr1RequiresViolation, mainErr0EnsuresViolation, gl_insertErr0RequiresViolation, gl_insertErr1RequiresViolation, gl_seek_maxErr0RequiresViolation, gl_seek_maxErr2RequiresViolation, gl_seek_maxErr1RequiresViolation, gl_seek_maxErr5RequiresViolation, gl_seek_maxErr3RequiresViolation, gl_seek_maxErr4RequiresViolation, gl_destroyErr4RequiresViolation, gl_destroyErr2RequiresViolation, gl_destroyErr0RequiresViolation, gl_destroyErr1RequiresViolation, gl_destroyErr6RequiresViolation, gl_destroyErr7RequiresViolation, gl_destroyErr3RequiresViolation, gl_destroyErr5RequiresViolation]=== [2018-01-25 02:51:49,377 INFO L82 PathProgramCache]: Analyzing trace with hash 1583156317, now seen corresponding path program 1 times [2018-01-25 02:51:49,377 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-25 02:51:49,381 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-25 02:51:49,381 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-25 02:51:49,381 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-25 02:51:49,381 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-25 02:51:49,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-25 02:51:49,400 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-25 02:51:49,446 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-25 02:51:49,447 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-25 02:51:49,447 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-01-25 02:51:49,447 INFO L252 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-01-25 02:51:49,447 INFO L409 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-01-25 02:51:49,447 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-01-25 02:51:49,447 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-01-25 02:51:49,448 INFO L87 Difference]: Start difference. First operand 211 states and 226 transitions. Second operand 5 states. [2018-01-25 02:51:49,670 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-25 02:51:49,671 INFO L93 Difference]: Finished difference Result 211 states and 226 transitions. [2018-01-25 02:51:49,671 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-01-25 02:51:49,671 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 25 [2018-01-25 02:51:49,672 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-25 02:51:49,673 INFO L225 Difference]: With dead ends: 211 [2018-01-25 02:51:49,673 INFO L226 Difference]: Without dead ends: 210 [2018-01-25 02:51:49,674 INFO L525 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-01-25 02:51:49,674 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 210 states. [2018-01-25 02:51:49,687 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 210 to 210. [2018-01-25 02:51:49,688 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 210 states. [2018-01-25 02:51:49,689 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 210 states to 210 states and 223 transitions. [2018-01-25 02:51:49,690 INFO L78 Accepts]: Start accepts. Automaton has 210 states and 223 transitions. Word has length 25 [2018-01-25 02:51:49,690 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-25 02:51:49,690 INFO L432 AbstractCegarLoop]: Abstraction has 210 states and 223 transitions. [2018-01-25 02:51:49,690 INFO L433 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-01-25 02:51:49,690 INFO L276 IsEmpty]: Start isEmpty. Operand 210 states and 223 transitions. [2018-01-25 02:51:49,691 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2018-01-25 02:51:49,691 INFO L314 BasicCegarLoop]: Found error trace [2018-01-25 02:51:49,691 INFO L322 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-25 02:51:49,691 INFO L371 AbstractCegarLoop]: === Iteration 12 === [__list_addErr1RequiresViolation, __list_addErr3RequiresViolation, __list_addErr0RequiresViolation, __list_addErr2RequiresViolation, __list_addErr4RequiresViolation, __list_addErr7RequiresViolation, __list_addErr5RequiresViolation, __list_addErr6RequiresViolation, ULTIMATE.initErr3RequiresViolation, ULTIMATE.initErr1RequiresViolation, ULTIMATE.initErr2RequiresViolation, ULTIMATE.initErr0RequiresViolation, val_from_nodeErr0RequiresViolation, val_from_nodeErr1RequiresViolation, list_moveErr0RequiresViolation, list_moveErr3RequiresViolation, list_moveErr2RequiresViolation, list_moveErr1RequiresViolation, gl_sortErr16RequiresViolation, gl_sortErr4RequiresViolation, gl_sortErr12RequiresViolation, gl_sortErr5RequiresViolation, gl_sortErr0RequiresViolation, gl_sortErr11RequiresViolation, gl_sortErr9RequiresViolation, gl_sortErr2RequiresViolation, gl_sortErr18RequiresViolation, gl_sortErr7RequiresViolation, gl_sortErr13RequiresViolation, gl_sortErr14RequiresViolation, gl_sortErr19RequiresViolation, gl_sortErr6RequiresViolation, gl_sortErr1RequiresViolation, gl_sortErr17RequiresViolation, gl_sortErr15RequiresViolation, gl_sortErr10RequiresViolation, gl_sortErr8RequiresViolation, gl_sortErr3RequiresViolation, list_addErr1RequiresViolation, list_addErr0RequiresViolation, list_emptyErr0RequiresViolation, list_emptyErr1RequiresViolation, __list_delErr0RequiresViolation, __list_delErr2RequiresViolation, __list_delErr3RequiresViolation, __list_delErr1RequiresViolation, mainErr0EnsuresViolation, gl_insertErr0RequiresViolation, gl_insertErr1RequiresViolation, gl_seek_maxErr0RequiresViolation, gl_seek_maxErr2RequiresViolation, gl_seek_maxErr1RequiresViolation, gl_seek_maxErr5RequiresViolation, gl_seek_maxErr3RequiresViolation, gl_seek_maxErr4RequiresViolation, gl_destroyErr4RequiresViolation, gl_destroyErr2RequiresViolation, gl_destroyErr0RequiresViolation, gl_destroyErr1RequiresViolation, gl_destroyErr6RequiresViolation, gl_destroyErr7RequiresViolation, gl_destroyErr3RequiresViolation, gl_destroyErr5RequiresViolation]=== [2018-01-25 02:51:49,691 INFO L82 PathProgramCache]: Analyzing trace with hash 1583156318, now seen corresponding path program 1 times [2018-01-25 02:51:49,692 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-25 02:51:49,692 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-25 02:51:49,693 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-25 02:51:49,693 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-25 02:51:49,693 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-25 02:51:49,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-25 02:51:49,705 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-25 02:51:49,925 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-25 02:51:49,925 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-25 02:51:49,925 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-01-25 02:51:49,925 INFO L252 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-01-25 02:51:49,926 INFO L409 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-01-25 02:51:49,926 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-01-25 02:51:49,926 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2018-01-25 02:51:49,926 INFO L87 Difference]: Start difference. First operand 210 states and 223 transitions. Second operand 8 states. [2018-01-25 02:51:50,501 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-25 02:51:50,502 INFO L93 Difference]: Finished difference Result 213 states and 223 transitions. [2018-01-25 02:51:50,502 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-01-25 02:51:50,502 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 25 [2018-01-25 02:51:50,502 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-25 02:51:50,503 INFO L225 Difference]: With dead ends: 213 [2018-01-25 02:51:50,503 INFO L226 Difference]: Without dead ends: 212 [2018-01-25 02:51:50,504 INFO L525 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=42, Invalid=114, Unknown=0, NotChecked=0, Total=156 [2018-01-25 02:51:50,504 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 212 states. [2018-01-25 02:51:50,511 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 212 to 210. [2018-01-25 02:51:50,512 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 210 states. [2018-01-25 02:51:50,513 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 210 states to 210 states and 221 transitions. [2018-01-25 02:51:50,514 INFO L78 Accepts]: Start accepts. Automaton has 210 states and 221 transitions. Word has length 25 [2018-01-25 02:51:50,514 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-25 02:51:50,514 INFO L432 AbstractCegarLoop]: Abstraction has 210 states and 221 transitions. [2018-01-25 02:51:50,514 INFO L433 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-01-25 02:51:50,514 INFO L276 IsEmpty]: Start isEmpty. Operand 210 states and 221 transitions. [2018-01-25 02:51:50,515 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2018-01-25 02:51:50,515 INFO L314 BasicCegarLoop]: Found error trace [2018-01-25 02:51:50,516 INFO L322 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-25 02:51:50,516 INFO L371 AbstractCegarLoop]: === Iteration 13 === [__list_addErr1RequiresViolation, __list_addErr3RequiresViolation, __list_addErr0RequiresViolation, __list_addErr2RequiresViolation, __list_addErr4RequiresViolation, __list_addErr7RequiresViolation, __list_addErr5RequiresViolation, __list_addErr6RequiresViolation, ULTIMATE.initErr3RequiresViolation, ULTIMATE.initErr1RequiresViolation, ULTIMATE.initErr2RequiresViolation, ULTIMATE.initErr0RequiresViolation, val_from_nodeErr0RequiresViolation, val_from_nodeErr1RequiresViolation, list_moveErr0RequiresViolation, list_moveErr3RequiresViolation, list_moveErr2RequiresViolation, list_moveErr1RequiresViolation, gl_sortErr16RequiresViolation, gl_sortErr4RequiresViolation, gl_sortErr12RequiresViolation, gl_sortErr5RequiresViolation, gl_sortErr0RequiresViolation, gl_sortErr11RequiresViolation, gl_sortErr9RequiresViolation, gl_sortErr2RequiresViolation, gl_sortErr18RequiresViolation, gl_sortErr7RequiresViolation, gl_sortErr13RequiresViolation, gl_sortErr14RequiresViolation, gl_sortErr19RequiresViolation, gl_sortErr6RequiresViolation, gl_sortErr1RequiresViolation, gl_sortErr17RequiresViolation, gl_sortErr15RequiresViolation, gl_sortErr10RequiresViolation, gl_sortErr8RequiresViolation, gl_sortErr3RequiresViolation, list_addErr1RequiresViolation, list_addErr0RequiresViolation, list_emptyErr0RequiresViolation, list_emptyErr1RequiresViolation, __list_delErr0RequiresViolation, __list_delErr2RequiresViolation, __list_delErr3RequiresViolation, __list_delErr1RequiresViolation, mainErr0EnsuresViolation, gl_insertErr0RequiresViolation, gl_insertErr1RequiresViolation, gl_seek_maxErr0RequiresViolation, gl_seek_maxErr2RequiresViolation, gl_seek_maxErr1RequiresViolation, gl_seek_maxErr5RequiresViolation, gl_seek_maxErr3RequiresViolation, gl_seek_maxErr4RequiresViolation, gl_destroyErr4RequiresViolation, gl_destroyErr2RequiresViolation, gl_destroyErr0RequiresViolation, gl_destroyErr1RequiresViolation, gl_destroyErr6RequiresViolation, gl_destroyErr7RequiresViolation, gl_destroyErr3RequiresViolation, gl_destroyErr5RequiresViolation]=== [2018-01-25 02:51:50,516 INFO L82 PathProgramCache]: Analyzing trace with hash 1201783090, now seen corresponding path program 1 times [2018-01-25 02:51:50,516 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-25 02:51:50,517 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-25 02:51:50,517 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-25 02:51:50,517 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-25 02:51:50,517 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-25 02:51:50,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-25 02:51:50,535 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-25 02:51:50,608 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-25 02:51:50,608 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-25 02:51:50,609 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2018-01-25 02:51:50,609 INFO L252 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-01-25 02:51:50,609 INFO L409 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-01-25 02:51:50,609 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-01-25 02:51:50,610 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2018-01-25 02:51:50,610 INFO L87 Difference]: Start difference. First operand 210 states and 221 transitions. Second operand 9 states. [2018-01-25 02:51:50,969 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-25 02:51:50,969 INFO L93 Difference]: Finished difference Result 210 states and 221 transitions. [2018-01-25 02:51:50,969 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-01-25 02:51:50,969 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 41 [2018-01-25 02:51:50,970 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-25 02:51:50,970 INFO L225 Difference]: With dead ends: 210 [2018-01-25 02:51:50,971 INFO L226 Difference]: Without dead ends: 209 [2018-01-25 02:51:50,971 INFO L525 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=50, Invalid=190, Unknown=0, NotChecked=0, Total=240 [2018-01-25 02:51:50,971 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 209 states. [2018-01-25 02:51:50,984 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 209 to 209. [2018-01-25 02:51:50,984 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 209 states. [2018-01-25 02:51:50,985 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 209 states to 209 states and 220 transitions. [2018-01-25 02:51:50,986 INFO L78 Accepts]: Start accepts. Automaton has 209 states and 220 transitions. Word has length 41 [2018-01-25 02:51:50,986 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-25 02:51:50,986 INFO L432 AbstractCegarLoop]: Abstraction has 209 states and 220 transitions. [2018-01-25 02:51:50,986 INFO L433 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-01-25 02:51:50,987 INFO L276 IsEmpty]: Start isEmpty. Operand 209 states and 220 transitions. [2018-01-25 02:51:50,988 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2018-01-25 02:51:50,988 INFO L314 BasicCegarLoop]: Found error trace [2018-01-25 02:51:50,988 INFO L322 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-25 02:51:50,988 INFO L371 AbstractCegarLoop]: === Iteration 14 === [__list_addErr1RequiresViolation, __list_addErr3RequiresViolation, __list_addErr0RequiresViolation, __list_addErr2RequiresViolation, __list_addErr4RequiresViolation, __list_addErr7RequiresViolation, __list_addErr5RequiresViolation, __list_addErr6RequiresViolation, ULTIMATE.initErr3RequiresViolation, ULTIMATE.initErr1RequiresViolation, ULTIMATE.initErr2RequiresViolation, ULTIMATE.initErr0RequiresViolation, val_from_nodeErr0RequiresViolation, val_from_nodeErr1RequiresViolation, list_moveErr0RequiresViolation, list_moveErr3RequiresViolation, list_moveErr2RequiresViolation, list_moveErr1RequiresViolation, gl_sortErr16RequiresViolation, gl_sortErr4RequiresViolation, gl_sortErr12RequiresViolation, gl_sortErr5RequiresViolation, gl_sortErr0RequiresViolation, gl_sortErr11RequiresViolation, gl_sortErr9RequiresViolation, gl_sortErr2RequiresViolation, gl_sortErr18RequiresViolation, gl_sortErr7RequiresViolation, gl_sortErr13RequiresViolation, gl_sortErr14RequiresViolation, gl_sortErr19RequiresViolation, gl_sortErr6RequiresViolation, gl_sortErr1RequiresViolation, gl_sortErr17RequiresViolation, gl_sortErr15RequiresViolation, gl_sortErr10RequiresViolation, gl_sortErr8RequiresViolation, gl_sortErr3RequiresViolation, list_addErr1RequiresViolation, list_addErr0RequiresViolation, list_emptyErr0RequiresViolation, list_emptyErr1RequiresViolation, __list_delErr0RequiresViolation, __list_delErr2RequiresViolation, __list_delErr3RequiresViolation, __list_delErr1RequiresViolation, mainErr0EnsuresViolation, gl_insertErr0RequiresViolation, gl_insertErr1RequiresViolation, gl_seek_maxErr0RequiresViolation, gl_seek_maxErr2RequiresViolation, gl_seek_maxErr1RequiresViolation, gl_seek_maxErr5RequiresViolation, gl_seek_maxErr3RequiresViolation, gl_seek_maxErr4RequiresViolation, gl_destroyErr4RequiresViolation, gl_destroyErr2RequiresViolation, gl_destroyErr0RequiresViolation, gl_destroyErr1RequiresViolation, gl_destroyErr6RequiresViolation, gl_destroyErr7RequiresViolation, gl_destroyErr3RequiresViolation, gl_destroyErr5RequiresViolation]=== [2018-01-25 02:51:50,988 INFO L82 PathProgramCache]: Analyzing trace with hash 1201783091, now seen corresponding path program 1 times [2018-01-25 02:51:50,988 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-25 02:51:50,989 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-25 02:51:50,989 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-25 02:51:50,990 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-25 02:51:50,990 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-25 02:51:51,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-25 02:51:51,007 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-25 02:51:51,201 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-25 02:51:51,202 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-25 02:51:51,240 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2018-01-25 02:51:51,240 INFO L252 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-01-25 02:51:51,240 INFO L409 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-01-25 02:51:51,241 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-01-25 02:51:51,241 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2018-01-25 02:51:51,241 INFO L87 Difference]: Start difference. First operand 209 states and 220 transitions. Second operand 11 states. [2018-01-25 02:51:51,746 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-25 02:51:51,746 INFO L93 Difference]: Finished difference Result 209 states and 220 transitions. [2018-01-25 02:51:51,746 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-01-25 02:51:51,746 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 41 [2018-01-25 02:51:51,746 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-25 02:51:51,747 INFO L225 Difference]: With dead ends: 209 [2018-01-25 02:51:51,747 INFO L226 Difference]: Without dead ends: 208 [2018-01-25 02:51:51,748 INFO L525 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=70, Invalid=236, Unknown=0, NotChecked=0, Total=306 [2018-01-25 02:51:51,748 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 208 states. [2018-01-25 02:51:51,760 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 208 to 208. [2018-01-25 02:51:51,760 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 208 states. [2018-01-25 02:51:51,762 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 208 states to 208 states and 219 transitions. [2018-01-25 02:51:51,762 INFO L78 Accepts]: Start accepts. Automaton has 208 states and 219 transitions. Word has length 41 [2018-01-25 02:51:51,762 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-25 02:51:51,763 INFO L432 AbstractCegarLoop]: Abstraction has 208 states and 219 transitions. [2018-01-25 02:51:51,763 INFO L433 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-01-25 02:51:51,763 INFO L276 IsEmpty]: Start isEmpty. Operand 208 states and 219 transitions. [2018-01-25 02:51:51,764 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2018-01-25 02:51:51,764 INFO L314 BasicCegarLoop]: Found error trace [2018-01-25 02:51:51,764 INFO L322 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-01-25 02:51:51,764 INFO L371 AbstractCegarLoop]: === Iteration 15 === [__list_addErr1RequiresViolation, __list_addErr3RequiresViolation, __list_addErr0RequiresViolation, __list_addErr2RequiresViolation, __list_addErr4RequiresViolation, __list_addErr7RequiresViolation, __list_addErr5RequiresViolation, __list_addErr6RequiresViolation, ULTIMATE.initErr3RequiresViolation, ULTIMATE.initErr1RequiresViolation, ULTIMATE.initErr2RequiresViolation, ULTIMATE.initErr0RequiresViolation, val_from_nodeErr0RequiresViolation, val_from_nodeErr1RequiresViolation, list_moveErr0RequiresViolation, list_moveErr3RequiresViolation, list_moveErr2RequiresViolation, list_moveErr1RequiresViolation, gl_sortErr16RequiresViolation, gl_sortErr4RequiresViolation, gl_sortErr12RequiresViolation, gl_sortErr5RequiresViolation, gl_sortErr0RequiresViolation, gl_sortErr11RequiresViolation, gl_sortErr9RequiresViolation, gl_sortErr2RequiresViolation, gl_sortErr18RequiresViolation, gl_sortErr7RequiresViolation, gl_sortErr13RequiresViolation, gl_sortErr14RequiresViolation, gl_sortErr19RequiresViolation, gl_sortErr6RequiresViolation, gl_sortErr1RequiresViolation, gl_sortErr17RequiresViolation, gl_sortErr15RequiresViolation, gl_sortErr10RequiresViolation, gl_sortErr8RequiresViolation, gl_sortErr3RequiresViolation, list_addErr1RequiresViolation, list_addErr0RequiresViolation, list_emptyErr0RequiresViolation, list_emptyErr1RequiresViolation, __list_delErr0RequiresViolation, __list_delErr2RequiresViolation, __list_delErr3RequiresViolation, __list_delErr1RequiresViolation, mainErr0EnsuresViolation, gl_insertErr0RequiresViolation, gl_insertErr1RequiresViolation, gl_seek_maxErr0RequiresViolation, gl_seek_maxErr2RequiresViolation, gl_seek_maxErr1RequiresViolation, gl_seek_maxErr5RequiresViolation, gl_seek_maxErr3RequiresViolation, gl_seek_maxErr4RequiresViolation, gl_destroyErr4RequiresViolation, gl_destroyErr2RequiresViolation, gl_destroyErr0RequiresViolation, gl_destroyErr1RequiresViolation, gl_destroyErr6RequiresViolation, gl_destroyErr7RequiresViolation, gl_destroyErr3RequiresViolation, gl_destroyErr5RequiresViolation]=== [2018-01-25 02:51:51,765 INFO L82 PathProgramCache]: Analyzing trace with hash 856902849, now seen corresponding path program 1 times [2018-01-25 02:51:51,765 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-25 02:51:51,765 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-25 02:51:51,766 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-25 02:51:51,766 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-25 02:51:51,766 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-25 02:51:51,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-25 02:51:51,794 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-25 02:51:52,046 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 6 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-25 02:51:52,047 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-01-25 02:51:52,047 INFO L187 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-01-25 02:51:52,048 INFO L199 CegarAbsIntRunner]: Running AI on error trace of length 49 with the following transitions: [2018-01-25 02:51:52,049 INFO L201 CegarAbsIntRunner]: [0], [1], [2], [4], [7], [10], [13], [102], [104], [106], [111], [145], [146], [147], [150], [153], [165], [166], [170], [171], [175], [176], [177], [182], [184], [188], [238], [244], [245], [250], [251], [252], [253], [254], [256], [257] [2018-01-25 02:51:52,094 INFO L147 AbstractInterpreter]: Using domain VPDomain [2018-01-25 02:51:52,094 INFO L101 FixpointEngine]: Starting fixpoint engine with domain VPDomain (maxUnwinding=3, maxParallelStates=2) Received shutdown request... Cannot interrupt operation gracefully because timeout expired. Forcing shutdown