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_smtcomp.epf -i ../../../trunk/examples/svcomp/memsafety/test-0134_true-valid-memsafety.i -------------------------------------------------------------------------------- This is Ultimate 0.1.23-6b94a2f [2018-01-25 05:41:06,450 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-01-25 05:41:06,452 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-01-25 05:41:06,467 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-01-25 05:41:06,468 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-01-25 05:41:06,469 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-01-25 05:41:06,470 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-01-25 05:41:06,471 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-01-25 05:41:06,474 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-01-25 05:41:06,475 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-01-25 05:41:06,476 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-01-25 05:41:06,476 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-01-25 05:41:06,477 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-01-25 05:41:06,478 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-01-25 05:41:06,479 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-01-25 05:41:06,482 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-01-25 05:41:06,484 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-01-25 05:41:06,487 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-01-25 05:41:06,488 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-01-25 05:41:06,489 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-01-25 05:41:06,492 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-01-25 05:41:06,492 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-01-25 05:41:06,492 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-01-25 05:41:06,493 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-01-25 05:41:06,494 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-01-25 05:41:06,495 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-01-25 05:41:06,495 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-01-25 05:41:06,496 INFO L177 SettingsManager]: PEA to Boogie provides no preferences, ignoring... [2018-01-25 05:41:06,496 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-01-25 05:41:06,496 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-01-25 05:41:06,497 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-01-25 05:41:06,498 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_smtcomp.epf [2018-01-25 05:41:06,506 INFO L110 SettingsManager]: Loading preferences was successful [2018-01-25 05:41:06,506 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-01-25 05:41:06,507 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-01-25 05:41:06,507 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-01-25 05:41:06,507 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-01-25 05:41:06,507 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=VPDomain [2018-01-25 05:41:06,507 INFO L133 SettingsManager]: * Precise comparison operator=true [2018-01-25 05:41:06,507 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-01-25 05:41:06,508 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-01-25 05:41:06,508 INFO L133 SettingsManager]: * sizeof long=4 [2018-01-25 05:41:06,508 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-01-25 05:41:06,508 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-01-25 05:41:06,508 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-01-25 05:41:06,509 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-01-25 05:41:06,509 INFO L133 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2018-01-25 05:41:06,509 INFO L133 SettingsManager]: * Bitprecise bitfields=true [2018-01-25 05:41:06,509 INFO L133 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2018-01-25 05:41:06,509 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-01-25 05:41:06,509 INFO L133 SettingsManager]: * sizeof long double=12 [2018-01-25 05:41:06,509 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-01-25 05:41:06,509 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-01-25 05:41:06,510 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-01-25 05:41:06,510 INFO L133 SettingsManager]: * Add additional assume for each assert=false [2018-01-25 05:41:06,510 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-01-25 05:41:06,510 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-01-25 05:41:06,511 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-01-25 05:41:06,511 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-01-25 05:41:06,511 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-01-25 05:41:06,511 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-01-25 05:41:06,511 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-01-25 05:41:06,511 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-01-25 05:41:06,511 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-01-25 05:41:06,511 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-01-25 05:41:06,511 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-01-25 05:41:06,512 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-01-25 05:41:06,512 INFO L133 SettingsManager]: * TransformationType=HEAP_SEPARATOR [2018-01-25 05:41:06,547 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-01-25 05:41:06,558 INFO L266 ainManager$Toolchain]: [Toolchain 1]: Parser(s) successfully initialized [2018-01-25 05:41:06,562 INFO L222 ainManager$Toolchain]: [Toolchain 1]: Toolchain data selected. [2018-01-25 05:41:06,563 INFO L271 PluginConnector]: Initializing CDTParser... [2018-01-25 05:41:06,563 INFO L276 PluginConnector]: CDTParser initialized [2018-01-25 05:41:06,564 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/memsafety/test-0134_true-valid-memsafety.i [2018-01-25 05:41:06,733 INFO L304 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-01-25 05:41:06,739 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-01-25 05:41:06,739 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-01-25 05:41:06,739 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-01-25 05:41:06,745 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-01-25 05:41:06,746 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.01 05:41:06" (1/1) ... [2018-01-25 05:41:06,749 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6546250d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.01 05:41:06, skipping insertion in model container [2018-01-25 05:41:06,749 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.01 05:41:06" (1/1) ... [2018-01-25 05:41:06,764 INFO L153 Dispatcher]: Using SV-COMP mode [2018-01-25 05:41:06,806 INFO L153 Dispatcher]: Using SV-COMP mode [2018-01-25 05:41:06,939 INFO L450 PostProcessor]: Settings: Checked method=main [2018-01-25 05:41:06,966 INFO L450 PostProcessor]: Settings: Checked method=main [2018-01-25 05:41:06,979 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.01 05:41:06 WrapperNode [2018-01-25 05:41:06,980 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-01-25 05:41:06,981 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-01-25 05:41:06,981 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-01-25 05:41:06,981 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-01-25 05:41:06,994 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.01 05:41:06" (1/1) ... [2018-01-25 05:41:06,994 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.01 05:41:06" (1/1) ... [2018-01-25 05:41:07,005 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.01 05:41:06" (1/1) ... [2018-01-25 05:41:07,005 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.01 05:41:06" (1/1) ... [2018-01-25 05:41:07,016 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.01 05:41:06" (1/1) ... [2018-01-25 05:41:07,020 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.01 05:41:06" (1/1) ... [2018-01-25 05:41:07,023 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.01 05:41:06" (1/1) ... [2018-01-25 05:41:07,026 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-01-25 05:41:07,027 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-01-25 05:41:07,027 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-01-25 05:41:07,027 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-01-25 05:41:07,028 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.01 05:41:06" (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 05:41:07,081 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-01-25 05:41:07,082 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-01-25 05:41:07,082 INFO L136 BoogieDeclarations]: Found implementation of procedure list_empty [2018-01-25 05:41:07,082 INFO L136 BoogieDeclarations]: Found implementation of procedure __list_add [2018-01-25 05:41:07,082 INFO L136 BoogieDeclarations]: Found implementation of procedure __list_del [2018-01-25 05:41:07,082 INFO L136 BoogieDeclarations]: Found implementation of procedure list_add [2018-01-25 05:41:07,083 INFO L136 BoogieDeclarations]: Found implementation of procedure list_del [2018-01-25 05:41:07,083 INFO L136 BoogieDeclarations]: Found implementation of procedure list_move [2018-01-25 05:41:07,083 INFO L136 BoogieDeclarations]: Found implementation of procedure gl_insert [2018-01-25 05:41:07,083 INFO L136 BoogieDeclarations]: Found implementation of procedure gl_read [2018-01-25 05:41:07,083 INFO L136 BoogieDeclarations]: Found implementation of procedure gl_destroy [2018-01-25 05:41:07,083 INFO L136 BoogieDeclarations]: Found implementation of procedure val_from_node [2018-01-25 05:41:07,084 INFO L136 BoogieDeclarations]: Found implementation of procedure gl_seek_max [2018-01-25 05:41:07,084 INFO L136 BoogieDeclarations]: Found implementation of procedure gl_sort [2018-01-25 05:41:07,084 INFO L136 BoogieDeclarations]: Found implementation of procedure main [2018-01-25 05:41:07,084 INFO L128 BoogieDeclarations]: Found specification of procedure write~int [2018-01-25 05:41:07,084 INFO L128 BoogieDeclarations]: Found specification of procedure read~int [2018-01-25 05:41:07,084 INFO L128 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2018-01-25 05:41:07,084 INFO L128 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2018-01-25 05:41:07,085 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.free [2018-01-25 05:41:07,085 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-01-25 05:41:07,085 INFO L128 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-01-25 05:41:07,085 INFO L128 BoogieDeclarations]: Found specification of procedure free [2018-01-25 05:41:07,085 INFO L128 BoogieDeclarations]: Found specification of procedure abort [2018-01-25 05:41:07,085 INFO L128 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2018-01-25 05:41:07,085 INFO L128 BoogieDeclarations]: Found specification of procedure list_empty [2018-01-25 05:41:07,086 INFO L128 BoogieDeclarations]: Found specification of procedure __list_add [2018-01-25 05:41:07,086 INFO L128 BoogieDeclarations]: Found specification of procedure __list_del [2018-01-25 05:41:07,086 INFO L128 BoogieDeclarations]: Found specification of procedure list_add [2018-01-25 05:41:07,086 INFO L128 BoogieDeclarations]: Found specification of procedure list_del [2018-01-25 05:41:07,086 INFO L128 BoogieDeclarations]: Found specification of procedure list_move [2018-01-25 05:41:07,087 INFO L128 BoogieDeclarations]: Found specification of procedure gl_insert [2018-01-25 05:41:07,087 INFO L128 BoogieDeclarations]: Found specification of procedure gl_read [2018-01-25 05:41:07,087 INFO L128 BoogieDeclarations]: Found specification of procedure gl_destroy [2018-01-25 05:41:07,087 INFO L128 BoogieDeclarations]: Found specification of procedure val_from_node [2018-01-25 05:41:07,087 INFO L128 BoogieDeclarations]: Found specification of procedure gl_seek_max [2018-01-25 05:41:07,087 INFO L128 BoogieDeclarations]: Found specification of procedure gl_sort [2018-01-25 05:41:07,087 INFO L128 BoogieDeclarations]: Found specification of procedure main [2018-01-25 05:41:07,088 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-01-25 05:41:07,088 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-01-25 05:41:07,645 INFO L257 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-01-25 05:41:07,645 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.01 05:41:07 BoogieIcfgContainer [2018-01-25 05:41:07,646 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-01-25 05:41:07,647 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-01-25 05:41:07,647 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-01-25 05:41:07,649 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-01-25 05:41:07,649 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.01 05:41:06" (1/3) ... [2018-01-25 05:41:07,650 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5b44d579 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.01 05:41:07, skipping insertion in model container [2018-01-25 05:41:07,650 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.01 05:41:06" (2/3) ... [2018-01-25 05:41:07,650 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5b44d579 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.01 05:41:07, skipping insertion in model container [2018-01-25 05:41:07,650 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.01 05:41:07" (3/3) ... [2018-01-25 05:41:07,652 INFO L105 eAbstractionObserver]: Analyzing ICFG test-0134_true-valid-memsafety.i [2018-01-25 05:41:07,659 INFO L130 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-01-25 05:41:07,666 INFO L142 ceAbstractionStarter]: Appying trace abstraction to program that has 55 error locations. [2018-01-25 05:41:07,710 INFO L322 AbstractCegarLoop]: Interprodecural is true [2018-01-25 05:41:07,711 INFO L323 AbstractCegarLoop]: Hoare is true [2018-01-25 05:41:07,711 INFO L324 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-01-25 05:41:07,711 INFO L325 AbstractCegarLoop]: Backedges is TWOTRACK [2018-01-25 05:41:07,711 INFO L326 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-01-25 05:41:07,711 INFO L327 AbstractCegarLoop]: Difference is false [2018-01-25 05:41:07,711 INFO L328 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-01-25 05:41:07,711 INFO L333 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-01-25 05:41:07,712 INFO L87 2NestedWordAutomaton]: Mode: main mode - execution starts in main procedure [2018-01-25 05:41:07,734 INFO L276 IsEmpty]: Start isEmpty. Operand 179 states. [2018-01-25 05:41:07,739 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2018-01-25 05:41:07,739 INFO L314 BasicCegarLoop]: Found error trace [2018-01-25 05:41:07,740 INFO L322 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2018-01-25 05:41:07,741 INFO L371 AbstractCegarLoop]: === Iteration 1 === [__list_addErr1RequiresViolation, __list_addErr3RequiresViolation, __list_addErr0RequiresViolation, __list_addErr2RequiresViolation, __list_addErr4RequiresViolation, __list_addErr7RequiresViolation, __list_addErr5RequiresViolation, __list_addErr6RequiresViolation, val_from_nodeErr0RequiresViolation, val_from_nodeErr1RequiresViolation, gl_sortErr2RequiresViolation, gl_sortErr0RequiresViolation, gl_sortErr1RequiresViolation, gl_sortErr3RequiresViolation, list_emptyErr0RequiresViolation, list_emptyErr1RequiresViolation, mainErr0EnsuresViolation, __list_delErr0RequiresViolation, __list_delErr2RequiresViolation, __list_delErr3RequiresViolation, __list_delErr1RequiresViolation, gl_destroyErr4RequiresViolation, gl_destroyErr2RequiresViolation, gl_destroyErr0RequiresViolation, gl_destroyErr1RequiresViolation, gl_destroyErr6RequiresViolation, gl_destroyErr7RequiresViolation, gl_destroyErr3RequiresViolation, gl_destroyErr5RequiresViolation, ULTIMATE.initErr3RequiresViolation, ULTIMATE.initErr1RequiresViolation, ULTIMATE.initErr2RequiresViolation, ULTIMATE.initErr0RequiresViolation, list_delErr2RequiresViolation, list_delErr4RequiresViolation, list_delErr3RequiresViolation, list_delErr1RequiresViolation, list_delErr7RequiresViolation, list_delErr5RequiresViolation, list_delErr0RequiresViolation, list_delErr6RequiresViolation, list_moveErr0RequiresViolation, list_moveErr3RequiresViolation, list_moveErr2RequiresViolation, list_moveErr1RequiresViolation, list_addErr1RequiresViolation, list_addErr0RequiresViolation, gl_insertErr0RequiresViolation, gl_insertErr1RequiresViolation, gl_seek_maxErr0RequiresViolation, gl_seek_maxErr2RequiresViolation, gl_seek_maxErr1RequiresViolation, gl_seek_maxErr5RequiresViolation, gl_seek_maxErr3RequiresViolation, gl_seek_maxErr4RequiresViolation]=== [2018-01-25 05:41:07,745 INFO L82 PathProgramCache]: Analyzing trace with hash 8457694, now seen corresponding path program 1 times [2018-01-25 05:41:07,747 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-25 05:41:07,789 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-25 05:41:07,790 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-25 05:41:07,790 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-25 05:41:07,790 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-25 05:41:07,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-25 05:41:07,838 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-25 05:41:07,884 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 05:41:07,885 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-25 05:41:07,886 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-01-25 05:41:07,886 INFO L252 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-01-25 05:41:07,888 INFO L409 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-01-25 05:41:07,994 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-01-25 05:41:07,995 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-01-25 05:41:07,997 INFO L87 Difference]: Start difference. First operand 179 states. Second operand 3 states. [2018-01-25 05:41:08,208 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-25 05:41:08,208 INFO L93 Difference]: Finished difference Result 350 states and 392 transitions. [2018-01-25 05:41:08,209 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-01-25 05:41:08,211 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 4 [2018-01-25 05:41:08,211 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-25 05:41:08,227 INFO L225 Difference]: With dead ends: 350 [2018-01-25 05:41:08,227 INFO L226 Difference]: Without dead ends: 179 [2018-01-25 05:41:08,233 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 05:41:08,254 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 179 states. [2018-01-25 05:41:08,286 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 179 to 178. [2018-01-25 05:41:08,287 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 178 states. [2018-01-25 05:41:08,290 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 178 states to 178 states and 191 transitions. [2018-01-25 05:41:08,291 INFO L78 Accepts]: Start accepts. Automaton has 178 states and 191 transitions. Word has length 4 [2018-01-25 05:41:08,291 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-25 05:41:08,292 INFO L432 AbstractCegarLoop]: Abstraction has 178 states and 191 transitions. [2018-01-25 05:41:08,292 INFO L433 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-01-25 05:41:08,292 INFO L276 IsEmpty]: Start isEmpty. Operand 178 states and 191 transitions. [2018-01-25 05:41:08,292 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2018-01-25 05:41:08,292 INFO L314 BasicCegarLoop]: Found error trace [2018-01-25 05:41:08,292 INFO L322 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2018-01-25 05:41:08,292 INFO L371 AbstractCegarLoop]: === Iteration 2 === [__list_addErr1RequiresViolation, __list_addErr3RequiresViolation, __list_addErr0RequiresViolation, __list_addErr2RequiresViolation, __list_addErr4RequiresViolation, __list_addErr7RequiresViolation, __list_addErr5RequiresViolation, __list_addErr6RequiresViolation, val_from_nodeErr0RequiresViolation, val_from_nodeErr1RequiresViolation, gl_sortErr2RequiresViolation, gl_sortErr0RequiresViolation, gl_sortErr1RequiresViolation, gl_sortErr3RequiresViolation, list_emptyErr0RequiresViolation, list_emptyErr1RequiresViolation, mainErr0EnsuresViolation, __list_delErr0RequiresViolation, __list_delErr2RequiresViolation, __list_delErr3RequiresViolation, __list_delErr1RequiresViolation, gl_destroyErr4RequiresViolation, gl_destroyErr2RequiresViolation, gl_destroyErr0RequiresViolation, gl_destroyErr1RequiresViolation, gl_destroyErr6RequiresViolation, gl_destroyErr7RequiresViolation, gl_destroyErr3RequiresViolation, gl_destroyErr5RequiresViolation, ULTIMATE.initErr3RequiresViolation, ULTIMATE.initErr1RequiresViolation, ULTIMATE.initErr2RequiresViolation, ULTIMATE.initErr0RequiresViolation, list_delErr2RequiresViolation, list_delErr4RequiresViolation, list_delErr3RequiresViolation, list_delErr1RequiresViolation, list_delErr7RequiresViolation, list_delErr5RequiresViolation, list_delErr0RequiresViolation, list_delErr6RequiresViolation, list_moveErr0RequiresViolation, list_moveErr3RequiresViolation, list_moveErr2RequiresViolation, list_moveErr1RequiresViolation, list_addErr1RequiresViolation, list_addErr0RequiresViolation, gl_insertErr0RequiresViolation, gl_insertErr1RequiresViolation, gl_seek_maxErr0RequiresViolation, gl_seek_maxErr2RequiresViolation, gl_seek_maxErr1RequiresViolation, gl_seek_maxErr5RequiresViolation, gl_seek_maxErr3RequiresViolation, gl_seek_maxErr4RequiresViolation]=== [2018-01-25 05:41:08,293 INFO L82 PathProgramCache]: Analyzing trace with hash 8457695, now seen corresponding path program 1 times [2018-01-25 05:41:08,293 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-25 05:41:08,293 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-25 05:41:08,294 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-25 05:41:08,294 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-25 05:41:08,294 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-25 05:41:08,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-25 05:41:08,309 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-25 05:41:08,358 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 05:41:08,358 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-25 05:41:08,358 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-01-25 05:41:08,359 INFO L252 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-01-25 05:41:08,360 INFO L409 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-01-25 05:41:08,360 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-01-25 05:41:08,361 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-01-25 05:41:08,361 INFO L87 Difference]: Start difference. First operand 178 states and 191 transitions. Second operand 3 states. [2018-01-25 05:41:08,530 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-25 05:41:08,530 INFO L93 Difference]: Finished difference Result 182 states and 196 transitions. [2018-01-25 05:41:08,531 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-01-25 05:41:08,531 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 4 [2018-01-25 05:41:08,531 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-25 05:41:08,533 INFO L225 Difference]: With dead ends: 182 [2018-01-25 05:41:08,534 INFO L226 Difference]: Without dead ends: 180 [2018-01-25 05:41:08,535 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 05:41:08,535 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 180 states. [2018-01-25 05:41:08,553 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 180 to 176. [2018-01-25 05:41:08,553 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 176 states. [2018-01-25 05:41:08,555 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 176 states to 176 states and 189 transitions. [2018-01-25 05:41:08,555 INFO L78 Accepts]: Start accepts. Automaton has 176 states and 189 transitions. Word has length 4 [2018-01-25 05:41:08,556 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-25 05:41:08,556 INFO L432 AbstractCegarLoop]: Abstraction has 176 states and 189 transitions. [2018-01-25 05:41:08,556 INFO L433 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-01-25 05:41:08,556 INFO L276 IsEmpty]: Start isEmpty. Operand 176 states and 189 transitions. [2018-01-25 05:41:08,557 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2018-01-25 05:41:08,557 INFO L314 BasicCegarLoop]: Found error trace [2018-01-25 05:41:08,557 INFO L322 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-25 05:41:08,557 INFO L371 AbstractCegarLoop]: === Iteration 3 === [__list_addErr1RequiresViolation, __list_addErr3RequiresViolation, __list_addErr0RequiresViolation, __list_addErr2RequiresViolation, __list_addErr4RequiresViolation, __list_addErr7RequiresViolation, __list_addErr5RequiresViolation, __list_addErr6RequiresViolation, val_from_nodeErr0RequiresViolation, val_from_nodeErr1RequiresViolation, gl_sortErr2RequiresViolation, gl_sortErr0RequiresViolation, gl_sortErr1RequiresViolation, gl_sortErr3RequiresViolation, list_emptyErr0RequiresViolation, list_emptyErr1RequiresViolation, mainErr0EnsuresViolation, __list_delErr0RequiresViolation, __list_delErr2RequiresViolation, __list_delErr3RequiresViolation, __list_delErr1RequiresViolation, gl_destroyErr4RequiresViolation, gl_destroyErr2RequiresViolation, gl_destroyErr0RequiresViolation, gl_destroyErr1RequiresViolation, gl_destroyErr6RequiresViolation, gl_destroyErr7RequiresViolation, gl_destroyErr3RequiresViolation, gl_destroyErr5RequiresViolation, ULTIMATE.initErr3RequiresViolation, ULTIMATE.initErr1RequiresViolation, ULTIMATE.initErr2RequiresViolation, ULTIMATE.initErr0RequiresViolation, list_delErr2RequiresViolation, list_delErr4RequiresViolation, list_delErr3RequiresViolation, list_delErr1RequiresViolation, list_delErr7RequiresViolation, list_delErr5RequiresViolation, list_delErr0RequiresViolation, list_delErr6RequiresViolation, list_moveErr0RequiresViolation, list_moveErr3RequiresViolation, list_moveErr2RequiresViolation, list_moveErr1RequiresViolation, list_addErr1RequiresViolation, list_addErr0RequiresViolation, gl_insertErr0RequiresViolation, gl_insertErr1RequiresViolation, gl_seek_maxErr0RequiresViolation, gl_seek_maxErr2RequiresViolation, gl_seek_maxErr1RequiresViolation, gl_seek_maxErr5RequiresViolation, gl_seek_maxErr3RequiresViolation, gl_seek_maxErr4RequiresViolation]=== [2018-01-25 05:41:08,557 INFO L82 PathProgramCache]: Analyzing trace with hash 809839361, now seen corresponding path program 1 times [2018-01-25 05:41:08,557 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-25 05:41:08,558 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-25 05:41:08,559 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-25 05:41:08,559 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-25 05:41:08,559 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-25 05:41:08,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-25 05:41:08,584 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-25 05:41:08,648 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 05:41:08,648 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-25 05:41:08,648 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-01-25 05:41:08,648 INFO L252 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-01-25 05:41:08,649 INFO L409 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-01-25 05:41:08,649 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-01-25 05:41:08,649 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-01-25 05:41:08,650 INFO L87 Difference]: Start difference. First operand 176 states and 189 transitions. Second operand 4 states. [2018-01-25 05:41:08,829 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-25 05:41:08,829 INFO L93 Difference]: Finished difference Result 176 states and 189 transitions. [2018-01-25 05:41:08,829 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-01-25 05:41:08,829 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 16 [2018-01-25 05:41:08,830 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-25 05:41:08,831 INFO L225 Difference]: With dead ends: 176 [2018-01-25 05:41:08,831 INFO L226 Difference]: Without dead ends: 175 [2018-01-25 05:41:08,831 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 05:41:08,832 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 175 states. [2018-01-25 05:41:08,845 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 175 to 175. [2018-01-25 05:41:08,845 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 175 states. [2018-01-25 05:41:08,846 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 175 states to 175 states and 188 transitions. [2018-01-25 05:41:08,847 INFO L78 Accepts]: Start accepts. Automaton has 175 states and 188 transitions. Word has length 16 [2018-01-25 05:41:08,847 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-25 05:41:08,847 INFO L432 AbstractCegarLoop]: Abstraction has 175 states and 188 transitions. [2018-01-25 05:41:08,847 INFO L433 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-01-25 05:41:08,847 INFO L276 IsEmpty]: Start isEmpty. Operand 175 states and 188 transitions. [2018-01-25 05:41:08,847 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2018-01-25 05:41:08,847 INFO L314 BasicCegarLoop]: Found error trace [2018-01-25 05:41:08,848 INFO L322 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-25 05:41:08,848 INFO L371 AbstractCegarLoop]: === Iteration 4 === [__list_addErr1RequiresViolation, __list_addErr3RequiresViolation, __list_addErr0RequiresViolation, __list_addErr2RequiresViolation, __list_addErr4RequiresViolation, __list_addErr7RequiresViolation, __list_addErr5RequiresViolation, __list_addErr6RequiresViolation, val_from_nodeErr0RequiresViolation, val_from_nodeErr1RequiresViolation, gl_sortErr2RequiresViolation, gl_sortErr0RequiresViolation, gl_sortErr1RequiresViolation, gl_sortErr3RequiresViolation, list_emptyErr0RequiresViolation, list_emptyErr1RequiresViolation, mainErr0EnsuresViolation, __list_delErr0RequiresViolation, __list_delErr2RequiresViolation, __list_delErr3RequiresViolation, __list_delErr1RequiresViolation, gl_destroyErr4RequiresViolation, gl_destroyErr2RequiresViolation, gl_destroyErr0RequiresViolation, gl_destroyErr1RequiresViolation, gl_destroyErr6RequiresViolation, gl_destroyErr7RequiresViolation, gl_destroyErr3RequiresViolation, gl_destroyErr5RequiresViolation, ULTIMATE.initErr3RequiresViolation, ULTIMATE.initErr1RequiresViolation, ULTIMATE.initErr2RequiresViolation, ULTIMATE.initErr0RequiresViolation, list_delErr2RequiresViolation, list_delErr4RequiresViolation, list_delErr3RequiresViolation, list_delErr1RequiresViolation, list_delErr7RequiresViolation, list_delErr5RequiresViolation, list_delErr0RequiresViolation, list_delErr6RequiresViolation, list_moveErr0RequiresViolation, list_moveErr3RequiresViolation, list_moveErr2RequiresViolation, list_moveErr1RequiresViolation, list_addErr1RequiresViolation, list_addErr0RequiresViolation, gl_insertErr0RequiresViolation, gl_insertErr1RequiresViolation, gl_seek_maxErr0RequiresViolation, gl_seek_maxErr2RequiresViolation, gl_seek_maxErr1RequiresViolation, gl_seek_maxErr5RequiresViolation, gl_seek_maxErr3RequiresViolation, gl_seek_maxErr4RequiresViolation]=== [2018-01-25 05:41:08,848 INFO L82 PathProgramCache]: Analyzing trace with hash 809839362, now seen corresponding path program 1 times [2018-01-25 05:41:08,848 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-25 05:41:08,849 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-25 05:41:08,849 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-25 05:41:08,849 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-25 05:41:08,849 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-25 05:41:08,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-25 05:41:08,871 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-25 05:41:08,948 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 05:41:08,949 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-25 05:41:08,949 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-01-25 05:41:08,949 INFO L252 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-01-25 05:41:08,949 INFO L409 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-01-25 05:41:08,950 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-01-25 05:41:08,950 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-01-25 05:41:08,950 INFO L87 Difference]: Start difference. First operand 175 states and 188 transitions. Second operand 4 states. [2018-01-25 05:41:09,087 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-25 05:41:09,088 INFO L93 Difference]: Finished difference Result 175 states and 188 transitions. [2018-01-25 05:41:09,088 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-01-25 05:41:09,088 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 16 [2018-01-25 05:41:09,088 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-25 05:41:09,090 INFO L225 Difference]: With dead ends: 175 [2018-01-25 05:41:09,090 INFO L226 Difference]: Without dead ends: 174 [2018-01-25 05:41:09,090 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 05:41:09,091 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 174 states. [2018-01-25 05:41:09,101 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 174 to 174. [2018-01-25 05:41:09,101 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 174 states. [2018-01-25 05:41:09,103 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 174 states to 174 states and 187 transitions. [2018-01-25 05:41:09,104 INFO L78 Accepts]: Start accepts. Automaton has 174 states and 187 transitions. Word has length 16 [2018-01-25 05:41:09,104 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-25 05:41:09,104 INFO L432 AbstractCegarLoop]: Abstraction has 174 states and 187 transitions. [2018-01-25 05:41:09,104 INFO L433 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-01-25 05:41:09,104 INFO L276 IsEmpty]: Start isEmpty. Operand 174 states and 187 transitions. [2018-01-25 05:41:09,105 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2018-01-25 05:41:09,105 INFO L314 BasicCegarLoop]: Found error trace [2018-01-25 05:41:09,105 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 05:41:09,106 INFO L371 AbstractCegarLoop]: === Iteration 5 === [__list_addErr1RequiresViolation, __list_addErr3RequiresViolation, __list_addErr0RequiresViolation, __list_addErr2RequiresViolation, __list_addErr4RequiresViolation, __list_addErr7RequiresViolation, __list_addErr5RequiresViolation, __list_addErr6RequiresViolation, val_from_nodeErr0RequiresViolation, val_from_nodeErr1RequiresViolation, gl_sortErr2RequiresViolation, gl_sortErr0RequiresViolation, gl_sortErr1RequiresViolation, gl_sortErr3RequiresViolation, list_emptyErr0RequiresViolation, list_emptyErr1RequiresViolation, mainErr0EnsuresViolation, __list_delErr0RequiresViolation, __list_delErr2RequiresViolation, __list_delErr3RequiresViolation, __list_delErr1RequiresViolation, gl_destroyErr4RequiresViolation, gl_destroyErr2RequiresViolation, gl_destroyErr0RequiresViolation, gl_destroyErr1RequiresViolation, gl_destroyErr6RequiresViolation, gl_destroyErr7RequiresViolation, gl_destroyErr3RequiresViolation, gl_destroyErr5RequiresViolation, ULTIMATE.initErr3RequiresViolation, ULTIMATE.initErr1RequiresViolation, ULTIMATE.initErr2RequiresViolation, ULTIMATE.initErr0RequiresViolation, list_delErr2RequiresViolation, list_delErr4RequiresViolation, list_delErr3RequiresViolation, list_delErr1RequiresViolation, list_delErr7RequiresViolation, list_delErr5RequiresViolation, list_delErr0RequiresViolation, list_delErr6RequiresViolation, list_moveErr0RequiresViolation, list_moveErr3RequiresViolation, list_moveErr2RequiresViolation, list_moveErr1RequiresViolation, list_addErr1RequiresViolation, list_addErr0RequiresViolation, gl_insertErr0RequiresViolation, gl_insertErr1RequiresViolation, gl_seek_maxErr0RequiresViolation, gl_seek_maxErr2RequiresViolation, gl_seek_maxErr1RequiresViolation, gl_seek_maxErr5RequiresViolation, gl_seek_maxErr3RequiresViolation, gl_seek_maxErr4RequiresViolation]=== [2018-01-25 05:41:09,106 INFO L82 PathProgramCache]: Analyzing trace with hash 1093319294, now seen corresponding path program 1 times [2018-01-25 05:41:09,106 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-25 05:41:09,107 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-25 05:41:09,107 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-25 05:41:09,108 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-25 05:41:09,108 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-25 05:41:09,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-25 05:41:09,131 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-25 05:41:09,249 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 05:41:09,250 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-25 05:41:09,250 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-01-25 05:41:09,250 INFO L252 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-01-25 05:41:09,250 INFO L409 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-01-25 05:41:09,251 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-01-25 05:41:09,251 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2018-01-25 05:41:09,251 INFO L87 Difference]: Start difference. First operand 174 states and 187 transitions. Second operand 7 states. [2018-01-25 05:41:09,580 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-25 05:41:09,580 INFO L93 Difference]: Finished difference Result 183 states and 195 transitions. [2018-01-25 05:41:09,580 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-01-25 05:41:09,581 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 19 [2018-01-25 05:41:09,582 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-25 05:41:09,583 INFO L225 Difference]: With dead ends: 183 [2018-01-25 05:41:09,583 INFO L226 Difference]: Without dead ends: 182 [2018-01-25 05:41:09,583 INFO L525 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2018-01-25 05:41:09,584 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 182 states. [2018-01-25 05:41:09,593 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 182 to 180. [2018-01-25 05:41:09,594 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 180 states. [2018-01-25 05:41:09,595 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 180 states to 180 states and 194 transitions. [2018-01-25 05:41:09,595 INFO L78 Accepts]: Start accepts. Automaton has 180 states and 194 transitions. Word has length 19 [2018-01-25 05:41:09,595 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-25 05:41:09,595 INFO L432 AbstractCegarLoop]: Abstraction has 180 states and 194 transitions. [2018-01-25 05:41:09,595 INFO L433 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-01-25 05:41:09,596 INFO L276 IsEmpty]: Start isEmpty. Operand 180 states and 194 transitions. [2018-01-25 05:41:09,596 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2018-01-25 05:41:09,596 INFO L314 BasicCegarLoop]: Found error trace [2018-01-25 05:41:09,596 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 05:41:09,596 INFO L371 AbstractCegarLoop]: === Iteration 6 === [__list_addErr1RequiresViolation, __list_addErr3RequiresViolation, __list_addErr0RequiresViolation, __list_addErr2RequiresViolation, __list_addErr4RequiresViolation, __list_addErr7RequiresViolation, __list_addErr5RequiresViolation, __list_addErr6RequiresViolation, val_from_nodeErr0RequiresViolation, val_from_nodeErr1RequiresViolation, gl_sortErr2RequiresViolation, gl_sortErr0RequiresViolation, gl_sortErr1RequiresViolation, gl_sortErr3RequiresViolation, list_emptyErr0RequiresViolation, list_emptyErr1RequiresViolation, mainErr0EnsuresViolation, __list_delErr0RequiresViolation, __list_delErr2RequiresViolation, __list_delErr3RequiresViolation, __list_delErr1RequiresViolation, gl_destroyErr4RequiresViolation, gl_destroyErr2RequiresViolation, gl_destroyErr0RequiresViolation, gl_destroyErr1RequiresViolation, gl_destroyErr6RequiresViolation, gl_destroyErr7RequiresViolation, gl_destroyErr3RequiresViolation, gl_destroyErr5RequiresViolation, ULTIMATE.initErr3RequiresViolation, ULTIMATE.initErr1RequiresViolation, ULTIMATE.initErr2RequiresViolation, ULTIMATE.initErr0RequiresViolation, list_delErr2RequiresViolation, list_delErr4RequiresViolation, list_delErr3RequiresViolation, list_delErr1RequiresViolation, list_delErr7RequiresViolation, list_delErr5RequiresViolation, list_delErr0RequiresViolation, list_delErr6RequiresViolation, list_moveErr0RequiresViolation, list_moveErr3RequiresViolation, list_moveErr2RequiresViolation, list_moveErr1RequiresViolation, list_addErr1RequiresViolation, list_addErr0RequiresViolation, gl_insertErr0RequiresViolation, gl_insertErr1RequiresViolation, gl_seek_maxErr0RequiresViolation, gl_seek_maxErr2RequiresViolation, gl_seek_maxErr1RequiresViolation, gl_seek_maxErr5RequiresViolation, gl_seek_maxErr3RequiresViolation, gl_seek_maxErr4RequiresViolation]=== [2018-01-25 05:41:09,596 INFO L82 PathProgramCache]: Analyzing trace with hash 1093319295, now seen corresponding path program 1 times [2018-01-25 05:41:09,596 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-25 05:41:09,597 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-25 05:41:09,597 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-25 05:41:09,597 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-25 05:41:09,597 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-25 05:41:09,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-25 05:41:09,617 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-25 05:41:09,800 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 05:41:09,800 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-25 05:41:09,800 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2018-01-25 05:41:09,800 INFO L252 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-01-25 05:41:09,800 INFO L409 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-01-25 05:41:09,801 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-01-25 05:41:09,801 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2018-01-25 05:41:09,801 INFO L87 Difference]: Start difference. First operand 180 states and 194 transitions. Second operand 9 states. [2018-01-25 05:41:10,227 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-25 05:41:10,227 INFO L93 Difference]: Finished difference Result 181 states and 194 transitions. [2018-01-25 05:41:10,227 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-01-25 05:41:10,227 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 19 [2018-01-25 05:41:10,228 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-25 05:41:10,229 INFO L225 Difference]: With dead ends: 181 [2018-01-25 05:41:10,229 INFO L226 Difference]: Without dead ends: 177 [2018-01-25 05:41:10,229 INFO L525 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=44, Invalid=88, Unknown=0, NotChecked=0, Total=132 [2018-01-25 05:41:10,229 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 177 states. [2018-01-25 05:41:10,239 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 177 to 177. [2018-01-25 05:41:10,240 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 177 states. [2018-01-25 05:41:10,241 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 177 states to 177 states and 189 transitions. [2018-01-25 05:41:10,241 INFO L78 Accepts]: Start accepts. Automaton has 177 states and 189 transitions. Word has length 19 [2018-01-25 05:41:10,241 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-25 05:41:10,241 INFO L432 AbstractCegarLoop]: Abstraction has 177 states and 189 transitions. [2018-01-25 05:41:10,241 INFO L433 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-01-25 05:41:10,241 INFO L276 IsEmpty]: Start isEmpty. Operand 177 states and 189 transitions. [2018-01-25 05:41:10,242 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2018-01-25 05:41:10,242 INFO L314 BasicCegarLoop]: Found error trace [2018-01-25 05:41:10,242 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 05:41:10,242 INFO L371 AbstractCegarLoop]: === Iteration 7 === [__list_addErr1RequiresViolation, __list_addErr3RequiresViolation, __list_addErr0RequiresViolation, __list_addErr2RequiresViolation, __list_addErr4RequiresViolation, __list_addErr7RequiresViolation, __list_addErr5RequiresViolation, __list_addErr6RequiresViolation, val_from_nodeErr0RequiresViolation, val_from_nodeErr1RequiresViolation, gl_sortErr2RequiresViolation, gl_sortErr0RequiresViolation, gl_sortErr1RequiresViolation, gl_sortErr3RequiresViolation, list_emptyErr0RequiresViolation, list_emptyErr1RequiresViolation, mainErr0EnsuresViolation, __list_delErr0RequiresViolation, __list_delErr2RequiresViolation, __list_delErr3RequiresViolation, __list_delErr1RequiresViolation, gl_destroyErr4RequiresViolation, gl_destroyErr2RequiresViolation, gl_destroyErr0RequiresViolation, gl_destroyErr1RequiresViolation, gl_destroyErr6RequiresViolation, gl_destroyErr7RequiresViolation, gl_destroyErr3RequiresViolation, gl_destroyErr5RequiresViolation, ULTIMATE.initErr3RequiresViolation, ULTIMATE.initErr1RequiresViolation, ULTIMATE.initErr2RequiresViolation, ULTIMATE.initErr0RequiresViolation, list_delErr2RequiresViolation, list_delErr4RequiresViolation, list_delErr3RequiresViolation, list_delErr1RequiresViolation, list_delErr7RequiresViolation, list_delErr5RequiresViolation, list_delErr0RequiresViolation, list_delErr6RequiresViolation, list_moveErr0RequiresViolation, list_moveErr3RequiresViolation, list_moveErr2RequiresViolation, list_moveErr1RequiresViolation, list_addErr1RequiresViolation, list_addErr0RequiresViolation, gl_insertErr0RequiresViolation, gl_insertErr1RequiresViolation, gl_seek_maxErr0RequiresViolation, gl_seek_maxErr2RequiresViolation, gl_seek_maxErr1RequiresViolation, gl_seek_maxErr5RequiresViolation, gl_seek_maxErr3RequiresViolation, gl_seek_maxErr4RequiresViolation]=== [2018-01-25 05:41:10,242 INFO L82 PathProgramCache]: Analyzing trace with hash -1956678693, now seen corresponding path program 1 times [2018-01-25 05:41:10,242 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-25 05:41:10,243 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-25 05:41:10,243 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-25 05:41:10,243 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-25 05:41:10,244 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-25 05:41:10,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-25 05:41:10,262 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-25 05:41:10,395 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 05:41:10,396 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-25 05:41:10,396 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2018-01-25 05:41:10,396 INFO L252 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-01-25 05:41:10,396 INFO L409 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-01-25 05:41:10,397 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-01-25 05:41:10,397 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2018-01-25 05:41:10,397 INFO L87 Difference]: Start difference. First operand 177 states and 189 transitions. Second operand 10 states. [2018-01-25 05:41:10,734 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-25 05:41:10,734 INFO L93 Difference]: Finished difference Result 204 states and 218 transitions. [2018-01-25 05:41:10,735 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2018-01-25 05:41:10,735 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 22 [2018-01-25 05:41:10,735 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-25 05:41:10,736 INFO L225 Difference]: With dead ends: 204 [2018-01-25 05:41:10,736 INFO L226 Difference]: Without dead ends: 203 [2018-01-25 05:41:10,737 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 05:41:10,737 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 203 states. [2018-01-25 05:41:10,748 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 203 to 195. [2018-01-25 05:41:10,748 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 195 states. [2018-01-25 05:41:10,749 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 195 states to 195 states and 216 transitions. [2018-01-25 05:41:10,750 INFO L78 Accepts]: Start accepts. Automaton has 195 states and 216 transitions. Word has length 22 [2018-01-25 05:41:10,750 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-25 05:41:10,750 INFO L432 AbstractCegarLoop]: Abstraction has 195 states and 216 transitions. [2018-01-25 05:41:10,750 INFO L433 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-01-25 05:41:10,750 INFO L276 IsEmpty]: Start isEmpty. Operand 195 states and 216 transitions. [2018-01-25 05:41:10,750 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2018-01-25 05:41:10,750 INFO L314 BasicCegarLoop]: Found error trace [2018-01-25 05:41:10,750 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 05:41:10,751 INFO L371 AbstractCegarLoop]: === Iteration 8 === [__list_addErr1RequiresViolation, __list_addErr3RequiresViolation, __list_addErr0RequiresViolation, __list_addErr2RequiresViolation, __list_addErr4RequiresViolation, __list_addErr7RequiresViolation, __list_addErr5RequiresViolation, __list_addErr6RequiresViolation, val_from_nodeErr0RequiresViolation, val_from_nodeErr1RequiresViolation, gl_sortErr2RequiresViolation, gl_sortErr0RequiresViolation, gl_sortErr1RequiresViolation, gl_sortErr3RequiresViolation, list_emptyErr0RequiresViolation, list_emptyErr1RequiresViolation, mainErr0EnsuresViolation, __list_delErr0RequiresViolation, __list_delErr2RequiresViolation, __list_delErr3RequiresViolation, __list_delErr1RequiresViolation, gl_destroyErr4RequiresViolation, gl_destroyErr2RequiresViolation, gl_destroyErr0RequiresViolation, gl_destroyErr1RequiresViolation, gl_destroyErr6RequiresViolation, gl_destroyErr7RequiresViolation, gl_destroyErr3RequiresViolation, gl_destroyErr5RequiresViolation, ULTIMATE.initErr3RequiresViolation, ULTIMATE.initErr1RequiresViolation, ULTIMATE.initErr2RequiresViolation, ULTIMATE.initErr0RequiresViolation, list_delErr2RequiresViolation, list_delErr4RequiresViolation, list_delErr3RequiresViolation, list_delErr1RequiresViolation, list_delErr7RequiresViolation, list_delErr5RequiresViolation, list_delErr0RequiresViolation, list_delErr6RequiresViolation, list_moveErr0RequiresViolation, list_moveErr3RequiresViolation, list_moveErr2RequiresViolation, list_moveErr1RequiresViolation, list_addErr1RequiresViolation, list_addErr0RequiresViolation, gl_insertErr0RequiresViolation, gl_insertErr1RequiresViolation, gl_seek_maxErr0RequiresViolation, gl_seek_maxErr2RequiresViolation, gl_seek_maxErr1RequiresViolation, gl_seek_maxErr5RequiresViolation, gl_seek_maxErr3RequiresViolation, gl_seek_maxErr4RequiresViolation]=== [2018-01-25 05:41:10,751 INFO L82 PathProgramCache]: Analyzing trace with hash -1956678692, now seen corresponding path program 1 times [2018-01-25 05:41:10,751 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-25 05:41:10,751 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-25 05:41:10,751 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-25 05:41:10,752 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-25 05:41:10,752 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-25 05:41:10,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-25 05:41:10,769 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-25 05:41:11,004 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 05:41:11,005 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-25 05:41:11,005 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2018-01-25 05:41:11,005 INFO L252 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-01-25 05:41:11,005 INFO L409 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-01-25 05:41:11,005 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-01-25 05:41:11,006 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2018-01-25 05:41:11,006 INFO L87 Difference]: Start difference. First operand 195 states and 216 transitions. Second operand 11 states. [2018-01-25 05:41:12,194 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-25 05:41:12,195 INFO L93 Difference]: Finished difference Result 363 states and 387 transitions. [2018-01-25 05:41:12,195 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2018-01-25 05:41:12,195 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 22 [2018-01-25 05:41:12,195 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-25 05:41:12,197 INFO L225 Difference]: With dead ends: 363 [2018-01-25 05:41:12,198 INFO L226 Difference]: Without dead ends: 362 [2018-01-25 05:41:12,198 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 05:41:12,198 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 362 states. [2018-01-25 05:41:12,216 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 362 to 290. [2018-01-25 05:41:12,216 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 290 states. [2018-01-25 05:41:12,218 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 290 states to 290 states and 356 transitions. [2018-01-25 05:41:12,218 INFO L78 Accepts]: Start accepts. Automaton has 290 states and 356 transitions. Word has length 22 [2018-01-25 05:41:12,218 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-25 05:41:12,219 INFO L432 AbstractCegarLoop]: Abstraction has 290 states and 356 transitions. [2018-01-25 05:41:12,219 INFO L433 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-01-25 05:41:12,219 INFO L276 IsEmpty]: Start isEmpty. Operand 290 states and 356 transitions. [2018-01-25 05:41:12,219 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2018-01-25 05:41:12,219 INFO L314 BasicCegarLoop]: Found error trace [2018-01-25 05:41:12,219 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 05:41:12,219 INFO L371 AbstractCegarLoop]: === Iteration 9 === [__list_addErr1RequiresViolation, __list_addErr3RequiresViolation, __list_addErr0RequiresViolation, __list_addErr2RequiresViolation, __list_addErr4RequiresViolation, __list_addErr7RequiresViolation, __list_addErr5RequiresViolation, __list_addErr6RequiresViolation, val_from_nodeErr0RequiresViolation, val_from_nodeErr1RequiresViolation, gl_sortErr2RequiresViolation, gl_sortErr0RequiresViolation, gl_sortErr1RequiresViolation, gl_sortErr3RequiresViolation, list_emptyErr0RequiresViolation, list_emptyErr1RequiresViolation, mainErr0EnsuresViolation, __list_delErr0RequiresViolation, __list_delErr2RequiresViolation, __list_delErr3RequiresViolation, __list_delErr1RequiresViolation, gl_destroyErr4RequiresViolation, gl_destroyErr2RequiresViolation, gl_destroyErr0RequiresViolation, gl_destroyErr1RequiresViolation, gl_destroyErr6RequiresViolation, gl_destroyErr7RequiresViolation, gl_destroyErr3RequiresViolation, gl_destroyErr5RequiresViolation, ULTIMATE.initErr3RequiresViolation, ULTIMATE.initErr1RequiresViolation, ULTIMATE.initErr2RequiresViolation, ULTIMATE.initErr0RequiresViolation, list_delErr2RequiresViolation, list_delErr4RequiresViolation, list_delErr3RequiresViolation, list_delErr1RequiresViolation, list_delErr7RequiresViolation, list_delErr5RequiresViolation, list_delErr0RequiresViolation, list_delErr6RequiresViolation, list_moveErr0RequiresViolation, list_moveErr3RequiresViolation, list_moveErr2RequiresViolation, list_moveErr1RequiresViolation, list_addErr1RequiresViolation, list_addErr0RequiresViolation, gl_insertErr0RequiresViolation, gl_insertErr1RequiresViolation, gl_seek_maxErr0RequiresViolation, gl_seek_maxErr2RequiresViolation, gl_seek_maxErr1RequiresViolation, gl_seek_maxErr5RequiresViolation, gl_seek_maxErr3RequiresViolation, gl_seek_maxErr4RequiresViolation]=== [2018-01-25 05:41:12,220 INFO L82 PathProgramCache]: Analyzing trace with hash -527497365, now seen corresponding path program 1 times [2018-01-25 05:41:12,220 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-25 05:41:12,220 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-25 05:41:12,220 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-25 05:41:12,220 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-25 05:41:12,221 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-25 05:41:12,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-25 05:41:12,235 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-25 05:41:12,351 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 05:41:12,351 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-25 05:41:12,351 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-01-25 05:41:12,351 INFO L252 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-01-25 05:41:12,352 INFO L409 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-01-25 05:41:12,352 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-01-25 05:41:12,352 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-01-25 05:41:12,352 INFO L87 Difference]: Start difference. First operand 290 states and 356 transitions. Second operand 7 states. [2018-01-25 05:41:12,671 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-25 05:41:12,672 INFO L93 Difference]: Finished difference Result 304 states and 370 transitions. [2018-01-25 05:41:12,672 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-01-25 05:41:12,672 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 23 [2018-01-25 05:41:12,672 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-25 05:41:12,675 INFO L225 Difference]: With dead ends: 304 [2018-01-25 05:41:12,675 INFO L226 Difference]: Without dead ends: 302 [2018-01-25 05:41:12,676 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 05:41:12,676 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 302 states. [2018-01-25 05:41:12,690 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 302 to 206. [2018-01-25 05:41:12,690 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 206 states. [2018-01-25 05:41:12,692 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 206 states to 206 states and 227 transitions. [2018-01-25 05:41:12,692 INFO L78 Accepts]: Start accepts. Automaton has 206 states and 227 transitions. Word has length 23 [2018-01-25 05:41:12,693 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-25 05:41:12,693 INFO L432 AbstractCegarLoop]: Abstraction has 206 states and 227 transitions. [2018-01-25 05:41:12,693 INFO L433 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-01-25 05:41:12,693 INFO L276 IsEmpty]: Start isEmpty. Operand 206 states and 227 transitions. [2018-01-25 05:41:12,693 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2018-01-25 05:41:12,693 INFO L314 BasicCegarLoop]: Found error trace [2018-01-25 05:41:12,693 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 05:41:12,693 INFO L371 AbstractCegarLoop]: === Iteration 10 === [__list_addErr1RequiresViolation, __list_addErr3RequiresViolation, __list_addErr0RequiresViolation, __list_addErr2RequiresViolation, __list_addErr4RequiresViolation, __list_addErr7RequiresViolation, __list_addErr5RequiresViolation, __list_addErr6RequiresViolation, val_from_nodeErr0RequiresViolation, val_from_nodeErr1RequiresViolation, gl_sortErr2RequiresViolation, gl_sortErr0RequiresViolation, gl_sortErr1RequiresViolation, gl_sortErr3RequiresViolation, list_emptyErr0RequiresViolation, list_emptyErr1RequiresViolation, mainErr0EnsuresViolation, __list_delErr0RequiresViolation, __list_delErr2RequiresViolation, __list_delErr3RequiresViolation, __list_delErr1RequiresViolation, gl_destroyErr4RequiresViolation, gl_destroyErr2RequiresViolation, gl_destroyErr0RequiresViolation, gl_destroyErr1RequiresViolation, gl_destroyErr6RequiresViolation, gl_destroyErr7RequiresViolation, gl_destroyErr3RequiresViolation, gl_destroyErr5RequiresViolation, ULTIMATE.initErr3RequiresViolation, ULTIMATE.initErr1RequiresViolation, ULTIMATE.initErr2RequiresViolation, ULTIMATE.initErr0RequiresViolation, list_delErr2RequiresViolation, list_delErr4RequiresViolation, list_delErr3RequiresViolation, list_delErr1RequiresViolation, list_delErr7RequiresViolation, list_delErr5RequiresViolation, list_delErr0RequiresViolation, list_delErr6RequiresViolation, list_moveErr0RequiresViolation, list_moveErr3RequiresViolation, list_moveErr2RequiresViolation, list_moveErr1RequiresViolation, list_addErr1RequiresViolation, list_addErr0RequiresViolation, gl_insertErr0RequiresViolation, gl_insertErr1RequiresViolation, gl_seek_maxErr0RequiresViolation, gl_seek_maxErr2RequiresViolation, gl_seek_maxErr1RequiresViolation, gl_seek_maxErr5RequiresViolation, gl_seek_maxErr3RequiresViolation, gl_seek_maxErr4RequiresViolation]=== [2018-01-25 05:41:12,694 INFO L82 PathProgramCache]: Analyzing trace with hash -527497364, now seen corresponding path program 1 times [2018-01-25 05:41:12,694 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-25 05:41:12,695 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-25 05:41:12,695 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-25 05:41:12,695 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-25 05:41:12,695 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-25 05:41:12,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-25 05:41:12,711 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-25 05:41:12,805 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 05:41:12,805 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-25 05:41:12,805 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-01-25 05:41:12,805 INFO L252 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-01-25 05:41:12,805 INFO L409 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-01-25 05:41:12,806 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-01-25 05:41:12,806 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2018-01-25 05:41:12,806 INFO L87 Difference]: Start difference. First operand 206 states and 227 transitions. Second operand 8 states. [2018-01-25 05:41:13,211 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-25 05:41:13,212 INFO L93 Difference]: Finished difference Result 212 states and 227 transitions. [2018-01-25 05:41:13,212 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-01-25 05:41:13,212 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 23 [2018-01-25 05:41:13,212 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-25 05:41:13,214 INFO L225 Difference]: With dead ends: 212 [2018-01-25 05:41:13,214 INFO L226 Difference]: Without dead ends: 210 [2018-01-25 05:41:13,214 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 05:41:13,215 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 210 states. [2018-01-25 05:41:13,226 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 210 to 206. [2018-01-25 05:41:13,226 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 206 states. [2018-01-25 05:41:13,228 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 206 states to 206 states and 223 transitions. [2018-01-25 05:41:13,228 INFO L78 Accepts]: Start accepts. Automaton has 206 states and 223 transitions. Word has length 23 [2018-01-25 05:41:13,229 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-25 05:41:13,229 INFO L432 AbstractCegarLoop]: Abstraction has 206 states and 223 transitions. [2018-01-25 05:41:13,229 INFO L433 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-01-25 05:41:13,229 INFO L276 IsEmpty]: Start isEmpty. Operand 206 states and 223 transitions. [2018-01-25 05:41:13,230 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2018-01-25 05:41:13,230 INFO L314 BasicCegarLoop]: Found error trace [2018-01-25 05:41:13,230 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 05:41:13,230 INFO L371 AbstractCegarLoop]: === Iteration 11 === [__list_addErr1RequiresViolation, __list_addErr3RequiresViolation, __list_addErr0RequiresViolation, __list_addErr2RequiresViolation, __list_addErr4RequiresViolation, __list_addErr7RequiresViolation, __list_addErr5RequiresViolation, __list_addErr6RequiresViolation, val_from_nodeErr0RequiresViolation, val_from_nodeErr1RequiresViolation, gl_sortErr2RequiresViolation, gl_sortErr0RequiresViolation, gl_sortErr1RequiresViolation, gl_sortErr3RequiresViolation, list_emptyErr0RequiresViolation, list_emptyErr1RequiresViolation, mainErr0EnsuresViolation, __list_delErr0RequiresViolation, __list_delErr2RequiresViolation, __list_delErr3RequiresViolation, __list_delErr1RequiresViolation, gl_destroyErr4RequiresViolation, gl_destroyErr2RequiresViolation, gl_destroyErr0RequiresViolation, gl_destroyErr1RequiresViolation, gl_destroyErr6RequiresViolation, gl_destroyErr7RequiresViolation, gl_destroyErr3RequiresViolation, gl_destroyErr5RequiresViolation, ULTIMATE.initErr3RequiresViolation, ULTIMATE.initErr1RequiresViolation, ULTIMATE.initErr2RequiresViolation, ULTIMATE.initErr0RequiresViolation, list_delErr2RequiresViolation, list_delErr4RequiresViolation, list_delErr3RequiresViolation, list_delErr1RequiresViolation, list_delErr7RequiresViolation, list_delErr5RequiresViolation, list_delErr0RequiresViolation, list_delErr6RequiresViolation, list_moveErr0RequiresViolation, list_moveErr3RequiresViolation, list_moveErr2RequiresViolation, list_moveErr1RequiresViolation, list_addErr1RequiresViolation, list_addErr0RequiresViolation, gl_insertErr0RequiresViolation, gl_insertErr1RequiresViolation, gl_seek_maxErr0RequiresViolation, gl_seek_maxErr2RequiresViolation, gl_seek_maxErr1RequiresViolation, gl_seek_maxErr5RequiresViolation, gl_seek_maxErr3RequiresViolation, gl_seek_maxErr4RequiresViolation]=== [2018-01-25 05:41:13,230 INFO L82 PathProgramCache]: Analyzing trace with hash -118827570, now seen corresponding path program 1 times [2018-01-25 05:41:13,230 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-25 05:41:13,231 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-25 05:41:13,231 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-25 05:41:13,231 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-25 05:41:13,232 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-25 05:41:13,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-25 05:41:13,247 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-25 05:41:13,302 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 05:41:13,302 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-25 05:41:13,302 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-01-25 05:41:13,302 INFO L252 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-01-25 05:41:13,303 INFO L409 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-01-25 05:41:13,303 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-01-25 05:41:13,303 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-01-25 05:41:13,303 INFO L87 Difference]: Start difference. First operand 206 states and 223 transitions. Second operand 5 states. [2018-01-25 05:41:13,491 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-25 05:41:13,492 INFO L93 Difference]: Finished difference Result 206 states and 223 transitions. [2018-01-25 05:41:13,492 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-01-25 05:41:13,492 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 25 [2018-01-25 05:41:13,493 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-25 05:41:13,494 INFO L225 Difference]: With dead ends: 206 [2018-01-25 05:41:13,494 INFO L226 Difference]: Without dead ends: 205 [2018-01-25 05:41:13,495 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 05:41:13,498 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 205 states. [2018-01-25 05:41:13,513 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 205 to 205. [2018-01-25 05:41:13,514 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 205 states. [2018-01-25 05:41:13,515 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 205 states to 205 states and 220 transitions. [2018-01-25 05:41:13,515 INFO L78 Accepts]: Start accepts. Automaton has 205 states and 220 transitions. Word has length 25 [2018-01-25 05:41:13,516 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-25 05:41:13,516 INFO L432 AbstractCegarLoop]: Abstraction has 205 states and 220 transitions. [2018-01-25 05:41:13,516 INFO L433 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-01-25 05:41:13,516 INFO L276 IsEmpty]: Start isEmpty. Operand 205 states and 220 transitions. [2018-01-25 05:41:13,517 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2018-01-25 05:41:13,517 INFO L314 BasicCegarLoop]: Found error trace [2018-01-25 05:41:13,517 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 05:41:13,517 INFO L371 AbstractCegarLoop]: === Iteration 12 === [__list_addErr1RequiresViolation, __list_addErr3RequiresViolation, __list_addErr0RequiresViolation, __list_addErr2RequiresViolation, __list_addErr4RequiresViolation, __list_addErr7RequiresViolation, __list_addErr5RequiresViolation, __list_addErr6RequiresViolation, val_from_nodeErr0RequiresViolation, val_from_nodeErr1RequiresViolation, gl_sortErr2RequiresViolation, gl_sortErr0RequiresViolation, gl_sortErr1RequiresViolation, gl_sortErr3RequiresViolation, list_emptyErr0RequiresViolation, list_emptyErr1RequiresViolation, mainErr0EnsuresViolation, __list_delErr0RequiresViolation, __list_delErr2RequiresViolation, __list_delErr3RequiresViolation, __list_delErr1RequiresViolation, gl_destroyErr4RequiresViolation, gl_destroyErr2RequiresViolation, gl_destroyErr0RequiresViolation, gl_destroyErr1RequiresViolation, gl_destroyErr6RequiresViolation, gl_destroyErr7RequiresViolation, gl_destroyErr3RequiresViolation, gl_destroyErr5RequiresViolation, ULTIMATE.initErr3RequiresViolation, ULTIMATE.initErr1RequiresViolation, ULTIMATE.initErr2RequiresViolation, ULTIMATE.initErr0RequiresViolation, list_delErr2RequiresViolation, list_delErr4RequiresViolation, list_delErr3RequiresViolation, list_delErr1RequiresViolation, list_delErr7RequiresViolation, list_delErr5RequiresViolation, list_delErr0RequiresViolation, list_delErr6RequiresViolation, list_moveErr0RequiresViolation, list_moveErr3RequiresViolation, list_moveErr2RequiresViolation, list_moveErr1RequiresViolation, list_addErr1RequiresViolation, list_addErr0RequiresViolation, gl_insertErr0RequiresViolation, gl_insertErr1RequiresViolation, gl_seek_maxErr0RequiresViolation, gl_seek_maxErr2RequiresViolation, gl_seek_maxErr1RequiresViolation, gl_seek_maxErr5RequiresViolation, gl_seek_maxErr3RequiresViolation, gl_seek_maxErr4RequiresViolation]=== [2018-01-25 05:41:13,517 INFO L82 PathProgramCache]: Analyzing trace with hash -118827569, now seen corresponding path program 1 times [2018-01-25 05:41:13,517 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-25 05:41:13,518 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-25 05:41:13,518 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-25 05:41:13,519 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-25 05:41:13,519 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-25 05:41:13,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-25 05:41:13,537 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-25 05:41:13,626 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 05:41:13,626 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-25 05:41:13,627 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-01-25 05:41:13,627 INFO L252 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-01-25 05:41:13,627 INFO L409 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-01-25 05:41:13,627 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-01-25 05:41:13,627 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2018-01-25 05:41:13,628 INFO L87 Difference]: Start difference. First operand 205 states and 220 transitions. Second operand 8 states. [2018-01-25 05:41:13,908 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-25 05:41:13,908 INFO L93 Difference]: Finished difference Result 208 states and 220 transitions. [2018-01-25 05:41:13,909 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-01-25 05:41:13,909 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 25 [2018-01-25 05:41:13,909 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-25 05:41:13,910 INFO L225 Difference]: With dead ends: 208 [2018-01-25 05:41:13,910 INFO L226 Difference]: Without dead ends: 207 [2018-01-25 05:41:13,910 INFO L525 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=42, Invalid=114, Unknown=0, NotChecked=0, Total=156 [2018-01-25 05:41:13,911 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 207 states. [2018-01-25 05:41:13,924 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 207 to 205. [2018-01-25 05:41:13,924 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 205 states. [2018-01-25 05:41:13,926 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 205 states to 205 states and 218 transitions. [2018-01-25 05:41:13,926 INFO L78 Accepts]: Start accepts. Automaton has 205 states and 218 transitions. Word has length 25 [2018-01-25 05:41:13,926 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-25 05:41:13,927 INFO L432 AbstractCegarLoop]: Abstraction has 205 states and 218 transitions. [2018-01-25 05:41:13,927 INFO L433 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-01-25 05:41:13,927 INFO L276 IsEmpty]: Start isEmpty. Operand 205 states and 218 transitions. [2018-01-25 05:41:13,928 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2018-01-25 05:41:13,928 INFO L314 BasicCegarLoop]: Found error trace [2018-01-25 05:41:13,928 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 05:41:13,928 INFO L371 AbstractCegarLoop]: === Iteration 13 === [__list_addErr1RequiresViolation, __list_addErr3RequiresViolation, __list_addErr0RequiresViolation, __list_addErr2RequiresViolation, __list_addErr4RequiresViolation, __list_addErr7RequiresViolation, __list_addErr5RequiresViolation, __list_addErr6RequiresViolation, val_from_nodeErr0RequiresViolation, val_from_nodeErr1RequiresViolation, gl_sortErr2RequiresViolation, gl_sortErr0RequiresViolation, gl_sortErr1RequiresViolation, gl_sortErr3RequiresViolation, list_emptyErr0RequiresViolation, list_emptyErr1RequiresViolation, mainErr0EnsuresViolation, __list_delErr0RequiresViolation, __list_delErr2RequiresViolation, __list_delErr3RequiresViolation, __list_delErr1RequiresViolation, gl_destroyErr4RequiresViolation, gl_destroyErr2RequiresViolation, gl_destroyErr0RequiresViolation, gl_destroyErr1RequiresViolation, gl_destroyErr6RequiresViolation, gl_destroyErr7RequiresViolation, gl_destroyErr3RequiresViolation, gl_destroyErr5RequiresViolation, ULTIMATE.initErr3RequiresViolation, ULTIMATE.initErr1RequiresViolation, ULTIMATE.initErr2RequiresViolation, ULTIMATE.initErr0RequiresViolation, list_delErr2RequiresViolation, list_delErr4RequiresViolation, list_delErr3RequiresViolation, list_delErr1RequiresViolation, list_delErr7RequiresViolation, list_delErr5RequiresViolation, list_delErr0RequiresViolation, list_delErr6RequiresViolation, list_moveErr0RequiresViolation, list_moveErr3RequiresViolation, list_moveErr2RequiresViolation, list_moveErr1RequiresViolation, list_addErr1RequiresViolation, list_addErr0RequiresViolation, gl_insertErr0RequiresViolation, gl_insertErr1RequiresViolation, gl_seek_maxErr0RequiresViolation, gl_seek_maxErr2RequiresViolation, gl_seek_maxErr1RequiresViolation, gl_seek_maxErr5RequiresViolation, gl_seek_maxErr3RequiresViolation, gl_seek_maxErr4RequiresViolation]=== [2018-01-25 05:41:13,929 INFO L82 PathProgramCache]: Analyzing trace with hash 1902858492, now seen corresponding path program 1 times [2018-01-25 05:41:13,929 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-25 05:41:13,930 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-25 05:41:13,930 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-25 05:41:13,930 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-25 05:41:13,930 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-25 05:41:13,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-25 05:41:13,950 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-25 05:41:14,039 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 05:41:14,039 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-25 05:41:14,039 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2018-01-25 05:41:14,039 INFO L252 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-01-25 05:41:14,040 INFO L409 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-01-25 05:41:14,040 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-01-25 05:41:14,040 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2018-01-25 05:41:14,041 INFO L87 Difference]: Start difference. First operand 205 states and 218 transitions. Second operand 9 states. [2018-01-25 05:41:14,597 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-25 05:41:14,598 INFO L93 Difference]: Finished difference Result 205 states and 218 transitions. [2018-01-25 05:41:14,598 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-01-25 05:41:14,598 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 41 [2018-01-25 05:41:14,598 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-25 05:41:14,600 INFO L225 Difference]: With dead ends: 205 [2018-01-25 05:41:14,600 INFO L226 Difference]: Without dead ends: 204 [2018-01-25 05:41:14,600 INFO L525 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=50, Invalid=190, Unknown=0, NotChecked=0, Total=240 [2018-01-25 05:41:14,601 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 204 states. [2018-01-25 05:41:14,612 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 204 to 204. [2018-01-25 05:41:14,612 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 204 states. [2018-01-25 05:41:14,613 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 204 states to 204 states and 217 transitions. [2018-01-25 05:41:14,614 INFO L78 Accepts]: Start accepts. Automaton has 204 states and 217 transitions. Word has length 41 [2018-01-25 05:41:14,614 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-25 05:41:14,614 INFO L432 AbstractCegarLoop]: Abstraction has 204 states and 217 transitions. [2018-01-25 05:41:14,614 INFO L433 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-01-25 05:41:14,614 INFO L276 IsEmpty]: Start isEmpty. Operand 204 states and 217 transitions. [2018-01-25 05:41:14,615 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2018-01-25 05:41:14,615 INFO L314 BasicCegarLoop]: Found error trace [2018-01-25 05:41:14,615 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 05:41:14,615 INFO L371 AbstractCegarLoop]: === Iteration 14 === [__list_addErr1RequiresViolation, __list_addErr3RequiresViolation, __list_addErr0RequiresViolation, __list_addErr2RequiresViolation, __list_addErr4RequiresViolation, __list_addErr7RequiresViolation, __list_addErr5RequiresViolation, __list_addErr6RequiresViolation, val_from_nodeErr0RequiresViolation, val_from_nodeErr1RequiresViolation, gl_sortErr2RequiresViolation, gl_sortErr0RequiresViolation, gl_sortErr1RequiresViolation, gl_sortErr3RequiresViolation, list_emptyErr0RequiresViolation, list_emptyErr1RequiresViolation, mainErr0EnsuresViolation, __list_delErr0RequiresViolation, __list_delErr2RequiresViolation, __list_delErr3RequiresViolation, __list_delErr1RequiresViolation, gl_destroyErr4RequiresViolation, gl_destroyErr2RequiresViolation, gl_destroyErr0RequiresViolation, gl_destroyErr1RequiresViolation, gl_destroyErr6RequiresViolation, gl_destroyErr7RequiresViolation, gl_destroyErr3RequiresViolation, gl_destroyErr5RequiresViolation, ULTIMATE.initErr3RequiresViolation, ULTIMATE.initErr1RequiresViolation, ULTIMATE.initErr2RequiresViolation, ULTIMATE.initErr0RequiresViolation, list_delErr2RequiresViolation, list_delErr4RequiresViolation, list_delErr3RequiresViolation, list_delErr1RequiresViolation, list_delErr7RequiresViolation, list_delErr5RequiresViolation, list_delErr0RequiresViolation, list_delErr6RequiresViolation, list_moveErr0RequiresViolation, list_moveErr3RequiresViolation, list_moveErr2RequiresViolation, list_moveErr1RequiresViolation, list_addErr1RequiresViolation, list_addErr0RequiresViolation, gl_insertErr0RequiresViolation, gl_insertErr1RequiresViolation, gl_seek_maxErr0RequiresViolation, gl_seek_maxErr2RequiresViolation, gl_seek_maxErr1RequiresViolation, gl_seek_maxErr5RequiresViolation, gl_seek_maxErr3RequiresViolation, gl_seek_maxErr4RequiresViolation]=== [2018-01-25 05:41:14,616 INFO L82 PathProgramCache]: Analyzing trace with hash 1902858493, now seen corresponding path program 1 times [2018-01-25 05:41:14,616 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-25 05:41:14,617 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-25 05:41:14,617 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-25 05:41:14,617 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-25 05:41:14,617 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-25 05:41:14,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-25 05:41:14,630 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-25 05:41:14,941 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 05:41:14,942 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-25 05:41:14,942 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2018-01-25 05:41:14,942 INFO L252 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-01-25 05:41:14,942 INFO L409 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-01-25 05:41:14,942 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-01-25 05:41:14,943 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2018-01-25 05:41:14,943 INFO L87 Difference]: Start difference. First operand 204 states and 217 transitions. Second operand 11 states. [2018-01-25 05:41:15,699 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-25 05:41:15,699 INFO L93 Difference]: Finished difference Result 204 states and 217 transitions. [2018-01-25 05:41:15,699 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-01-25 05:41:15,700 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 41 [2018-01-25 05:41:15,700 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-25 05:41:15,701 INFO L225 Difference]: With dead ends: 204 [2018-01-25 05:41:15,701 INFO L226 Difference]: Without dead ends: 203 [2018-01-25 05:41:15,701 INFO L525 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=70, Invalid=236, Unknown=0, NotChecked=0, Total=306 [2018-01-25 05:41:15,702 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 203 states. [2018-01-25 05:41:15,712 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 203 to 203. [2018-01-25 05:41:15,712 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 203 states. [2018-01-25 05:41:15,714 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 203 states to 203 states and 216 transitions. [2018-01-25 05:41:15,714 INFO L78 Accepts]: Start accepts. Automaton has 203 states and 216 transitions. Word has length 41 [2018-01-25 05:41:15,714 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-25 05:41:15,714 INFO L432 AbstractCegarLoop]: Abstraction has 203 states and 216 transitions. [2018-01-25 05:41:15,714 INFO L433 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-01-25 05:41:15,715 INFO L276 IsEmpty]: Start isEmpty. Operand 203 states and 216 transitions. [2018-01-25 05:41:15,716 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2018-01-25 05:41:15,716 INFO L314 BasicCegarLoop]: Found error trace [2018-01-25 05:41:15,716 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 05:41:15,716 INFO L371 AbstractCegarLoop]: === Iteration 15 === [__list_addErr1RequiresViolation, __list_addErr3RequiresViolation, __list_addErr0RequiresViolation, __list_addErr2RequiresViolation, __list_addErr4RequiresViolation, __list_addErr7RequiresViolation, __list_addErr5RequiresViolation, __list_addErr6RequiresViolation, val_from_nodeErr0RequiresViolation, val_from_nodeErr1RequiresViolation, gl_sortErr2RequiresViolation, gl_sortErr0RequiresViolation, gl_sortErr1RequiresViolation, gl_sortErr3RequiresViolation, list_emptyErr0RequiresViolation, list_emptyErr1RequiresViolation, mainErr0EnsuresViolation, __list_delErr0RequiresViolation, __list_delErr2RequiresViolation, __list_delErr3RequiresViolation, __list_delErr1RequiresViolation, gl_destroyErr4RequiresViolation, gl_destroyErr2RequiresViolation, gl_destroyErr0RequiresViolation, gl_destroyErr1RequiresViolation, gl_destroyErr6RequiresViolation, gl_destroyErr7RequiresViolation, gl_destroyErr3RequiresViolation, gl_destroyErr5RequiresViolation, ULTIMATE.initErr3RequiresViolation, ULTIMATE.initErr1RequiresViolation, ULTIMATE.initErr2RequiresViolation, ULTIMATE.initErr0RequiresViolation, list_delErr2RequiresViolation, list_delErr4RequiresViolation, list_delErr3RequiresViolation, list_delErr1RequiresViolation, list_delErr7RequiresViolation, list_delErr5RequiresViolation, list_delErr0RequiresViolation, list_delErr6RequiresViolation, list_moveErr0RequiresViolation, list_moveErr3RequiresViolation, list_moveErr2RequiresViolation, list_moveErr1RequiresViolation, list_addErr1RequiresViolation, list_addErr0RequiresViolation, gl_insertErr0RequiresViolation, gl_insertErr1RequiresViolation, gl_seek_maxErr0RequiresViolation, gl_seek_maxErr2RequiresViolation, gl_seek_maxErr1RequiresViolation, gl_seek_maxErr5RequiresViolation, gl_seek_maxErr3RequiresViolation, gl_seek_maxErr4RequiresViolation]=== [2018-01-25 05:41:15,716 INFO L82 PathProgramCache]: Analyzing trace with hash 873260496, now seen corresponding path program 1 times [2018-01-25 05:41:15,717 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-25 05:41:15,717 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-25 05:41:15,717 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-25 05:41:15,718 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-25 05:41:15,718 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-25 05:41:15,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-25 05:41:15,746 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-25 05:41:16,354 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 9 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-25 05:41:16,355 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-01-25 05:41:16,355 INFO L187 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-01-25 05:41:16,356 INFO L199 CegarAbsIntRunner]: Running AI on error trace of length 49 with the following transitions: [2018-01-25 05:41:16,357 INFO L201 CegarAbsIntRunner]: [0], [1], [2], [4], [7], [10], [13], [104], [106], [108], [113], [147], [148], [149], [152], [155], [156], [157], [161], [162], [166], [167], [168], [173], [175], [179], [222], [244], [245], [246], [247], [248], [249], [250], [252], [253] [2018-01-25 05:41:16,406 INFO L147 AbstractInterpreter]: Using domain VPDomain [2018-01-25 05:41:16,406 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