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.epf -i ../../../trunk/examples/svcomp/heap-manipulation/bubble_sort_linux_true-unreach-call_true-valid-memsafety.i -------------------------------------------------------------------------------- This is Ultimate 0.1.23-6b94a2f [2018-01-24 16:03:16,655 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-01-24 16:03:16,678 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-01-24 16:03:16,693 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-01-24 16:03:16,693 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-01-24 16:03:16,694 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-01-24 16:03:16,695 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-01-24 16:03:16,697 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-01-24 16:03:16,699 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-01-24 16:03:16,700 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-01-24 16:03:16,701 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-01-24 16:03:16,701 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-01-24 16:03:16,702 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-01-24 16:03:16,703 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-01-24 16:03:16,704 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-01-24 16:03:16,707 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-01-24 16:03:16,709 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-01-24 16:03:16,711 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-01-24 16:03:16,712 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-01-24 16:03:16,714 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-01-24 16:03:16,716 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-01-24 16:03:16,716 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-01-24 16:03:16,716 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-01-24 16:03:16,717 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-01-24 16:03:16,718 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-01-24 16:03:16,719 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-01-24 16:03:16,720 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-01-24 16:03:16,720 INFO L177 SettingsManager]: PEA to Boogie provides no preferences, ignoring... [2018-01-24 16:03:16,720 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-01-24 16:03:16,721 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-01-24 16:03:16,721 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-01-24 16:03:16,721 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.epf [2018-01-24 16:03:16,731 INFO L110 SettingsManager]: Loading preferences was successful [2018-01-24 16:03:16,731 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-01-24 16:03:16,732 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-01-24 16:03:16,732 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-01-24 16:03:16,732 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-01-24 16:03:16,733 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=VPDomain [2018-01-24 16:03:16,733 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-01-24 16:03:16,733 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-01-24 16:03:16,734 INFO L133 SettingsManager]: * sizeof long=4 [2018-01-24 16:03:16,734 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-01-24 16:03:16,734 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-01-24 16:03:16,734 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-01-24 16:03:16,734 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-01-24 16:03:16,735 INFO L133 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2018-01-24 16:03:16,735 INFO L133 SettingsManager]: * Bitprecise bitfields=true [2018-01-24 16:03:16,735 INFO L133 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2018-01-24 16:03:16,735 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-01-24 16:03:16,735 INFO L133 SettingsManager]: * sizeof long double=12 [2018-01-24 16:03:16,736 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-01-24 16:03:16,736 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-01-24 16:03:16,736 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-01-24 16:03:16,736 INFO L133 SettingsManager]: * Add additional assume for each assert=false [2018-01-24 16:03:16,736 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-01-24 16:03:16,737 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-01-24 16:03:16,737 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-01-24 16:03:16,737 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-01-24 16:03:16,737 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-01-24 16:03:16,737 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-01-24 16:03:16,738 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-01-24 16:03:16,738 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-01-24 16:03:16,738 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-01-24 16:03:16,738 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-01-24 16:03:16,738 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-01-24 16:03:16,739 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-01-24 16:03:16,739 INFO L133 SettingsManager]: * TransformationType=HEAP_SEPARATOR [2018-01-24 16:03:16,774 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-01-24 16:03:16,787 INFO L266 ainManager$Toolchain]: [Toolchain 1]: Parser(s) successfully initialized [2018-01-24 16:03:16,791 INFO L222 ainManager$Toolchain]: [Toolchain 1]: Toolchain data selected. [2018-01-24 16:03:16,792 INFO L271 PluginConnector]: Initializing CDTParser... [2018-01-24 16:03:16,792 INFO L276 PluginConnector]: CDTParser initialized [2018-01-24 16:03:16,793 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/heap-manipulation/bubble_sort_linux_true-unreach-call_true-valid-memsafety.i [2018-01-24 16:03:16,985 INFO L304 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-01-24 16:03:16,991 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-01-24 16:03:16,992 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-01-24 16:03:16,992 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-01-24 16:03:16,997 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-01-24 16:03:16,998 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.01 04:03:16" (1/1) ... [2018-01-24 16:03:17,002 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@608f2b7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 04:03:16, skipping insertion in model container [2018-01-24 16:03:17,002 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.01 04:03:16" (1/1) ... [2018-01-24 16:03:17,022 INFO L153 Dispatcher]: Using SV-COMP mode [2018-01-24 16:03:17,076 INFO L153 Dispatcher]: Using SV-COMP mode [2018-01-24 16:03:17,214 INFO L450 PostProcessor]: Settings: Checked method=main [2018-01-24 16:03:17,243 INFO L450 PostProcessor]: Settings: Checked method=main [2018-01-24 16:03:17,256 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 04:03:17 WrapperNode [2018-01-24 16:03:17,257 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-01-24 16:03:17,257 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-01-24 16:03:17,257 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-01-24 16:03:17,258 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-01-24 16:03:17,271 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 04:03:17" (1/1) ... [2018-01-24 16:03:17,271 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 04:03:17" (1/1) ... [2018-01-24 16:03:17,282 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 04:03:17" (1/1) ... [2018-01-24 16:03:17,282 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 04:03:17" (1/1) ... [2018-01-24 16:03:17,295 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 04:03:17" (1/1) ... [2018-01-24 16:03:17,303 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 04:03:17" (1/1) ... [2018-01-24 16:03:17,306 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 04:03:17" (1/1) ... [2018-01-24 16:03:17,310 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-01-24 16:03:17,310 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-01-24 16:03:17,310 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-01-24 16:03:17,311 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-01-24 16:03:17,311 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 04:03:17" (1/1) ... No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-01-24 16:03:17,362 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-01-24 16:03:17,362 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-01-24 16:03:17,362 INFO L136 BoogieDeclarations]: Found implementation of procedure fail [2018-01-24 16:03:17,362 INFO L136 BoogieDeclarations]: Found implementation of procedure inspect [2018-01-24 16:03:17,362 INFO L136 BoogieDeclarations]: Found implementation of procedure __list_add [2018-01-24 16:03:17,363 INFO L136 BoogieDeclarations]: Found implementation of procedure __list_del [2018-01-24 16:03:17,363 INFO L136 BoogieDeclarations]: Found implementation of procedure list_add [2018-01-24 16:03:17,363 INFO L136 BoogieDeclarations]: Found implementation of procedure list_move [2018-01-24 16:03:17,363 INFO L136 BoogieDeclarations]: Found implementation of procedure gl_insert [2018-01-24 16:03:17,363 INFO L136 BoogieDeclarations]: Found implementation of procedure gl_read [2018-01-24 16:03:17,363 INFO L136 BoogieDeclarations]: Found implementation of procedure gl_destroy [2018-01-24 16:03:17,363 INFO L136 BoogieDeclarations]: Found implementation of procedure val_from_node [2018-01-24 16:03:17,363 INFO L136 BoogieDeclarations]: Found implementation of procedure gl_sort_pass [2018-01-24 16:03:17,363 INFO L136 BoogieDeclarations]: Found implementation of procedure gl_sort [2018-01-24 16:03:17,363 INFO L136 BoogieDeclarations]: Found implementation of procedure main [2018-01-24 16:03:17,364 INFO L128 BoogieDeclarations]: Found specification of procedure write~int [2018-01-24 16:03:17,364 INFO L128 BoogieDeclarations]: Found specification of procedure read~int [2018-01-24 16:03:17,364 INFO L128 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2018-01-24 16:03:17,364 INFO L128 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2018-01-24 16:03:17,364 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.free [2018-01-24 16:03:17,364 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-01-24 16:03:17,364 INFO L128 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-01-24 16:03:17,364 INFO L128 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2018-01-24 16:03:17,364 INFO L128 BoogieDeclarations]: Found specification of procedure free [2018-01-24 16:03:17,365 INFO L128 BoogieDeclarations]: Found specification of procedure abort [2018-01-24 16:03:17,365 INFO L128 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2018-01-24 16:03:17,365 INFO L128 BoogieDeclarations]: Found specification of procedure fail [2018-01-24 16:03:17,365 INFO L128 BoogieDeclarations]: Found specification of procedure inspect [2018-01-24 16:03:17,365 INFO L128 BoogieDeclarations]: Found specification of procedure __list_add [2018-01-24 16:03:17,365 INFO L128 BoogieDeclarations]: Found specification of procedure __list_del [2018-01-24 16:03:17,365 INFO L128 BoogieDeclarations]: Found specification of procedure list_add [2018-01-24 16:03:17,365 INFO L128 BoogieDeclarations]: Found specification of procedure list_move [2018-01-24 16:03:17,365 INFO L128 BoogieDeclarations]: Found specification of procedure gl_insert [2018-01-24 16:03:17,365 INFO L128 BoogieDeclarations]: Found specification of procedure gl_read [2018-01-24 16:03:17,366 INFO L128 BoogieDeclarations]: Found specification of procedure gl_destroy [2018-01-24 16:03:17,366 INFO L128 BoogieDeclarations]: Found specification of procedure val_from_node [2018-01-24 16:03:17,366 INFO L128 BoogieDeclarations]: Found specification of procedure gl_sort_pass [2018-01-24 16:03:17,366 INFO L128 BoogieDeclarations]: Found specification of procedure gl_sort [2018-01-24 16:03:17,366 INFO L128 BoogieDeclarations]: Found specification of procedure main [2018-01-24 16:03:17,366 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-01-24 16:03:17,366 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-01-24 16:03:18,109 INFO L257 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-01-24 16:03:18,110 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.01 04:03:18 BoogieIcfgContainer [2018-01-24 16:03:18,110 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-01-24 16:03:18,111 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-01-24 16:03:18,111 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-01-24 16:03:18,114 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-01-24 16:03:18,114 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.01 04:03:16" (1/3) ... [2018-01-24 16:03:18,115 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5d56ae07 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.01 04:03:18, skipping insertion in model container [2018-01-24 16:03:18,115 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 04:03:17" (2/3) ... [2018-01-24 16:03:18,115 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5d56ae07 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.01 04:03:18, skipping insertion in model container [2018-01-24 16:03:18,116 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.01 04:03:18" (3/3) ... [2018-01-24 16:03:18,117 INFO L105 eAbstractionObserver]: Analyzing ICFG bubble_sort_linux_true-unreach-call_true-valid-memsafety.i [2018-01-24 16:03:18,124 INFO L130 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-01-24 16:03:18,131 INFO L142 ceAbstractionStarter]: Appying trace abstraction to program that has 73 error locations. [2018-01-24 16:03:18,190 INFO L322 AbstractCegarLoop]: Interprodecural is true [2018-01-24 16:03:18,190 INFO L323 AbstractCegarLoop]: Hoare is true [2018-01-24 16:03:18,190 INFO L324 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-01-24 16:03:18,190 INFO L325 AbstractCegarLoop]: Backedges is TWOTRACK [2018-01-24 16:03:18,190 INFO L326 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-01-24 16:03:18,190 INFO L327 AbstractCegarLoop]: Difference is false [2018-01-24 16:03:18,190 INFO L328 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-01-24 16:03:18,190 INFO L333 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-01-24 16:03:18,191 INFO L87 2NestedWordAutomaton]: Mode: main mode - execution starts in main procedure [2018-01-24 16:03:18,215 INFO L276 IsEmpty]: Start isEmpty. Operand 268 states. [2018-01-24 16:03:18,219 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2018-01-24 16:03:18,220 INFO L314 BasicCegarLoop]: Found error trace [2018-01-24 16:03:18,221 INFO L322 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2018-01-24 16:03:18,221 INFO L371 AbstractCegarLoop]: === Iteration 1 === [__list_addErr1RequiresViolation, __list_addErr3RequiresViolation, __list_addErr0RequiresViolation, __list_addErr2RequiresViolation, __list_addErr4RequiresViolation, __list_addErr7RequiresViolation, __list_addErr5RequiresViolation, __list_addErr6RequiresViolation, ULTIMATE.initErr3RequiresViolation, ULTIMATE.initErr1RequiresViolation, ULTIMATE.initErr2RequiresViolation, ULTIMATE.initErr0RequiresViolation, list_moveErr0RequiresViolation, list_moveErr3RequiresViolation, list_moveErr2RequiresViolation, list_moveErr1RequiresViolation, val_from_nodeErr0RequiresViolation, val_from_nodeErr1RequiresViolation, gl_sort_passErr1RequiresViolation, gl_sort_passErr3RequiresViolation, gl_sort_passErr0RequiresViolation, gl_sort_passErr2RequiresViolation, inspectErr7RequiresViolation, inspectErr20RequiresViolation, inspectErr15RequiresViolation, inspectErr25RequiresViolation, inspectErr28RequiresViolation, inspectErr2RequiresViolation, inspectErr18RequiresViolation, inspectErr9RequiresViolation, inspectErr0RequiresViolation, inspectErr12RequiresViolation, inspectErr6RequiresViolation, inspectErr3RequiresViolation, inspectErr19RequiresViolation, inspectErr22RequiresViolation, inspectErr11RequiresViolation, inspectErr29RequiresViolation, inspectErr16RequiresViolation, inspectErr24RequiresViolation, inspectErr26RequiresViolation, inspectErr21RequiresViolation, inspectErr13RequiresViolation, inspectErr27RequiresViolation, inspectErr17RequiresViolation, inspectErr23RequiresViolation, inspectErr4RequiresViolation, inspectErr5RequiresViolation, inspectErr8RequiresViolation, inspectErr10RequiresViolation, inspectErr14RequiresViolation, inspectErr1RequiresViolation, list_addErr1RequiresViolation, list_addErr0RequiresViolation, mainErr0EnsuresViolation, __list_delErr0RequiresViolation, __list_delErr2RequiresViolation, __list_delErr3RequiresViolation, __list_delErr1RequiresViolation, gl_insertErr5RequiresViolation, gl_insertErr3RequiresViolation, gl_insertErr4RequiresViolation, gl_insertErr0RequiresViolation, gl_insertErr2RequiresViolation, gl_insertErr1RequiresViolation, gl_destroyErr4RequiresViolation, gl_destroyErr2RequiresViolation, gl_destroyErr0RequiresViolation, gl_destroyErr1RequiresViolation, gl_destroyErr6RequiresViolation, gl_destroyErr7RequiresViolation, gl_destroyErr3RequiresViolation, gl_destroyErr5RequiresViolation]=== [2018-01-24 16:03:18,224 INFO L82 PathProgramCache]: Analyzing trace with hash 19743518, now seen corresponding path program 1 times [2018-01-24 16:03:18,226 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-24 16:03:18,267 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 16:03:18,267 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-24 16:03:18,268 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 16:03:18,268 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-24 16:03:18,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-24 16:03:18,306 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-24 16:03:18,443 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-24 16:03:18,445 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-24 16:03:18,445 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-01-24 16:03:18,445 INFO L252 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-01-24 16:03:18,448 INFO L409 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-01-24 16:03:18,459 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-01-24 16:03:18,459 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-01-24 16:03:18,461 INFO L87 Difference]: Start difference. First operand 268 states. Second operand 3 states. [2018-01-24 16:03:18,759 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-24 16:03:18,760 INFO L93 Difference]: Finished difference Result 520 states and 695 transitions. [2018-01-24 16:03:18,760 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-01-24 16:03:18,762 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 4 [2018-01-24 16:03:18,762 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-24 16:03:18,775 INFO L225 Difference]: With dead ends: 520 [2018-01-24 16:03:18,775 INFO L226 Difference]: Without dead ends: 244 [2018-01-24 16:03:18,781 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 [2018-01-24 16:03:18,796 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 244 states. [2018-01-24 16:03:18,836 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 244 to 243. [2018-01-24 16:03:18,837 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 243 states. [2018-01-24 16:03:18,841 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 243 states to 243 states and 252 transitions. [2018-01-24 16:03:18,842 INFO L78 Accepts]: Start accepts. Automaton has 243 states and 252 transitions. Word has length 4 [2018-01-24 16:03:18,843 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-24 16:03:18,843 INFO L432 AbstractCegarLoop]: Abstraction has 243 states and 252 transitions. [2018-01-24 16:03:18,843 INFO L433 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-01-24 16:03:18,843 INFO L276 IsEmpty]: Start isEmpty. Operand 243 states and 252 transitions. [2018-01-24 16:03:18,843 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2018-01-24 16:03:18,843 INFO L314 BasicCegarLoop]: Found error trace [2018-01-24 16:03:18,843 INFO L322 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2018-01-24 16:03:18,843 INFO L371 AbstractCegarLoop]: === Iteration 2 === [__list_addErr1RequiresViolation, __list_addErr3RequiresViolation, __list_addErr0RequiresViolation, __list_addErr2RequiresViolation, __list_addErr4RequiresViolation, __list_addErr7RequiresViolation, __list_addErr5RequiresViolation, __list_addErr6RequiresViolation, ULTIMATE.initErr3RequiresViolation, ULTIMATE.initErr1RequiresViolation, ULTIMATE.initErr2RequiresViolation, ULTIMATE.initErr0RequiresViolation, list_moveErr0RequiresViolation, list_moveErr3RequiresViolation, list_moveErr2RequiresViolation, list_moveErr1RequiresViolation, val_from_nodeErr0RequiresViolation, val_from_nodeErr1RequiresViolation, gl_sort_passErr1RequiresViolation, gl_sort_passErr3RequiresViolation, gl_sort_passErr0RequiresViolation, gl_sort_passErr2RequiresViolation, inspectErr7RequiresViolation, inspectErr20RequiresViolation, inspectErr15RequiresViolation, inspectErr25RequiresViolation, inspectErr28RequiresViolation, inspectErr2RequiresViolation, inspectErr18RequiresViolation, inspectErr9RequiresViolation, inspectErr0RequiresViolation, inspectErr12RequiresViolation, inspectErr6RequiresViolation, inspectErr3RequiresViolation, inspectErr19RequiresViolation, inspectErr22RequiresViolation, inspectErr11RequiresViolation, inspectErr29RequiresViolation, inspectErr16RequiresViolation, inspectErr24RequiresViolation, inspectErr26RequiresViolation, inspectErr21RequiresViolation, inspectErr13RequiresViolation, inspectErr27RequiresViolation, inspectErr17RequiresViolation, inspectErr23RequiresViolation, inspectErr4RequiresViolation, inspectErr5RequiresViolation, inspectErr8RequiresViolation, inspectErr10RequiresViolation, inspectErr14RequiresViolation, inspectErr1RequiresViolation, list_addErr1RequiresViolation, list_addErr0RequiresViolation, mainErr0EnsuresViolation, __list_delErr0RequiresViolation, __list_delErr2RequiresViolation, __list_delErr3RequiresViolation, __list_delErr1RequiresViolation, gl_insertErr5RequiresViolation, gl_insertErr3RequiresViolation, gl_insertErr4RequiresViolation, gl_insertErr0RequiresViolation, gl_insertErr2RequiresViolation, gl_insertErr1RequiresViolation, gl_destroyErr4RequiresViolation, gl_destroyErr2RequiresViolation, gl_destroyErr0RequiresViolation, gl_destroyErr1RequiresViolation, gl_destroyErr6RequiresViolation, gl_destroyErr7RequiresViolation, gl_destroyErr3RequiresViolation, gl_destroyErr5RequiresViolation]=== [2018-01-24 16:03:18,844 INFO L82 PathProgramCache]: Analyzing trace with hash 19743519, now seen corresponding path program 1 times [2018-01-24 16:03:18,844 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-24 16:03:18,845 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 16:03:18,845 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-24 16:03:18,845 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 16:03:18,845 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-24 16:03:18,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-24 16:03:18,863 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-24 16:03:18,922 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-24 16:03:18,922 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-24 16:03:18,922 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-01-24 16:03:18,923 INFO L252 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-01-24 16:03:18,924 INFO L409 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-01-24 16:03:18,925 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-01-24 16:03:18,925 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-01-24 16:03:18,925 INFO L87 Difference]: Start difference. First operand 243 states and 252 transitions. Second operand 3 states. [2018-01-24 16:03:19,128 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-24 16:03:19,128 INFO L93 Difference]: Finished difference Result 247 states and 257 transitions. [2018-01-24 16:03:19,128 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-01-24 16:03:19,128 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 4 [2018-01-24 16:03:19,128 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-24 16:03:19,132 INFO L225 Difference]: With dead ends: 247 [2018-01-24 16:03:19,133 INFO L226 Difference]: Without dead ends: 245 [2018-01-24 16:03:19,134 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 [2018-01-24 16:03:19,134 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 245 states. [2018-01-24 16:03:19,154 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 245 to 241. [2018-01-24 16:03:19,154 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 241 states. [2018-01-24 16:03:19,155 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 241 states to 241 states and 250 transitions. [2018-01-24 16:03:19,156 INFO L78 Accepts]: Start accepts. Automaton has 241 states and 250 transitions. Word has length 4 [2018-01-24 16:03:19,156 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-24 16:03:19,156 INFO L432 AbstractCegarLoop]: Abstraction has 241 states and 250 transitions. [2018-01-24 16:03:19,156 INFO L433 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-01-24 16:03:19,156 INFO L276 IsEmpty]: Start isEmpty. Operand 241 states and 250 transitions. [2018-01-24 16:03:19,157 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2018-01-24 16:03:19,157 INFO L314 BasicCegarLoop]: Found error trace [2018-01-24 16:03:19,157 INFO L322 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-24 16:03:19,157 INFO L371 AbstractCegarLoop]: === Iteration 3 === [__list_addErr1RequiresViolation, __list_addErr3RequiresViolation, __list_addErr0RequiresViolation, __list_addErr2RequiresViolation, __list_addErr4RequiresViolation, __list_addErr7RequiresViolation, __list_addErr5RequiresViolation, __list_addErr6RequiresViolation, ULTIMATE.initErr3RequiresViolation, ULTIMATE.initErr1RequiresViolation, ULTIMATE.initErr2RequiresViolation, ULTIMATE.initErr0RequiresViolation, list_moveErr0RequiresViolation, list_moveErr3RequiresViolation, list_moveErr2RequiresViolation, list_moveErr1RequiresViolation, val_from_nodeErr0RequiresViolation, val_from_nodeErr1RequiresViolation, gl_sort_passErr1RequiresViolation, gl_sort_passErr3RequiresViolation, gl_sort_passErr0RequiresViolation, gl_sort_passErr2RequiresViolation, inspectErr7RequiresViolation, inspectErr20RequiresViolation, inspectErr15RequiresViolation, inspectErr25RequiresViolation, inspectErr28RequiresViolation, inspectErr2RequiresViolation, inspectErr18RequiresViolation, inspectErr9RequiresViolation, inspectErr0RequiresViolation, inspectErr12RequiresViolation, inspectErr6RequiresViolation, inspectErr3RequiresViolation, inspectErr19RequiresViolation, inspectErr22RequiresViolation, inspectErr11RequiresViolation, inspectErr29RequiresViolation, inspectErr16RequiresViolation, inspectErr24RequiresViolation, inspectErr26RequiresViolation, inspectErr21RequiresViolation, inspectErr13RequiresViolation, inspectErr27RequiresViolation, inspectErr17RequiresViolation, inspectErr23RequiresViolation, inspectErr4RequiresViolation, inspectErr5RequiresViolation, inspectErr8RequiresViolation, inspectErr10RequiresViolation, inspectErr14RequiresViolation, inspectErr1RequiresViolation, list_addErr1RequiresViolation, list_addErr0RequiresViolation, mainErr0EnsuresViolation, __list_delErr0RequiresViolation, __list_delErr2RequiresViolation, __list_delErr3RequiresViolation, __list_delErr1RequiresViolation, gl_insertErr5RequiresViolation, gl_insertErr3RequiresViolation, gl_insertErr4RequiresViolation, gl_insertErr0RequiresViolation, gl_insertErr2RequiresViolation, gl_insertErr1RequiresViolation, gl_destroyErr4RequiresViolation, gl_destroyErr2RequiresViolation, gl_destroyErr0RequiresViolation, gl_destroyErr1RequiresViolation, gl_destroyErr6RequiresViolation, gl_destroyErr7RequiresViolation, gl_destroyErr3RequiresViolation, gl_destroyErr5RequiresViolation]=== [2018-01-24 16:03:19,157 INFO L82 PathProgramCache]: Analyzing trace with hash -935456334, now seen corresponding path program 1 times [2018-01-24 16:03:19,157 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-24 16:03:19,158 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 16:03:19,159 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-24 16:03:19,159 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 16:03:19,159 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-24 16:03:19,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-24 16:03:19,183 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-24 16:03:19,228 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-24 16:03:19,229 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-24 16:03:19,229 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-01-24 16:03:19,229 INFO L252 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-01-24 16:03:19,229 INFO L409 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-01-24 16:03:19,230 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-01-24 16:03:19,230 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-01-24 16:03:19,230 INFO L87 Difference]: Start difference. First operand 241 states and 250 transitions. Second operand 4 states. [2018-01-24 16:03:19,390 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-24 16:03:19,390 INFO L93 Difference]: Finished difference Result 241 states and 250 transitions. [2018-01-24 16:03:19,390 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-01-24 16:03:19,390 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 16 [2018-01-24 16:03:19,390 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-24 16:03:19,392 INFO L225 Difference]: With dead ends: 241 [2018-01-24 16:03:19,392 INFO L226 Difference]: Without dead ends: 238 [2018-01-24 16:03:19,392 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 [2018-01-24 16:03:19,393 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 238 states. [2018-01-24 16:03:19,408 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 238 to 238. [2018-01-24 16:03:19,408 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 238 states. [2018-01-24 16:03:19,411 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 238 states to 238 states and 247 transitions. [2018-01-24 16:03:19,412 INFO L78 Accepts]: Start accepts. Automaton has 238 states and 247 transitions. Word has length 16 [2018-01-24 16:03:19,413 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-24 16:03:19,413 INFO L432 AbstractCegarLoop]: Abstraction has 238 states and 247 transitions. [2018-01-24 16:03:19,413 INFO L433 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-01-24 16:03:19,413 INFO L276 IsEmpty]: Start isEmpty. Operand 238 states and 247 transitions. [2018-01-24 16:03:19,414 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2018-01-24 16:03:19,414 INFO L314 BasicCegarLoop]: Found error trace [2018-01-24 16:03:19,414 INFO L322 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-24 16:03:19,414 INFO L371 AbstractCegarLoop]: === Iteration 4 === [__list_addErr1RequiresViolation, __list_addErr3RequiresViolation, __list_addErr0RequiresViolation, __list_addErr2RequiresViolation, __list_addErr4RequiresViolation, __list_addErr7RequiresViolation, __list_addErr5RequiresViolation, __list_addErr6RequiresViolation, ULTIMATE.initErr3RequiresViolation, ULTIMATE.initErr1RequiresViolation, ULTIMATE.initErr2RequiresViolation, ULTIMATE.initErr0RequiresViolation, list_moveErr0RequiresViolation, list_moveErr3RequiresViolation, list_moveErr2RequiresViolation, list_moveErr1RequiresViolation, val_from_nodeErr0RequiresViolation, val_from_nodeErr1RequiresViolation, gl_sort_passErr1RequiresViolation, gl_sort_passErr3RequiresViolation, gl_sort_passErr0RequiresViolation, gl_sort_passErr2RequiresViolation, inspectErr7RequiresViolation, inspectErr20RequiresViolation, inspectErr15RequiresViolation, inspectErr25RequiresViolation, inspectErr28RequiresViolation, inspectErr2RequiresViolation, inspectErr18RequiresViolation, inspectErr9RequiresViolation, inspectErr0RequiresViolation, inspectErr12RequiresViolation, inspectErr6RequiresViolation, inspectErr3RequiresViolation, inspectErr19RequiresViolation, inspectErr22RequiresViolation, inspectErr11RequiresViolation, inspectErr29RequiresViolation, inspectErr16RequiresViolation, inspectErr24RequiresViolation, inspectErr26RequiresViolation, inspectErr21RequiresViolation, inspectErr13RequiresViolation, inspectErr27RequiresViolation, inspectErr17RequiresViolation, inspectErr23RequiresViolation, inspectErr4RequiresViolation, inspectErr5RequiresViolation, inspectErr8RequiresViolation, inspectErr10RequiresViolation, inspectErr14RequiresViolation, inspectErr1RequiresViolation, list_addErr1RequiresViolation, list_addErr0RequiresViolation, mainErr0EnsuresViolation, __list_delErr0RequiresViolation, __list_delErr2RequiresViolation, __list_delErr3RequiresViolation, __list_delErr1RequiresViolation, gl_insertErr5RequiresViolation, gl_insertErr3RequiresViolation, gl_insertErr4RequiresViolation, gl_insertErr0RequiresViolation, gl_insertErr2RequiresViolation, gl_insertErr1RequiresViolation, gl_destroyErr4RequiresViolation, gl_destroyErr2RequiresViolation, gl_destroyErr0RequiresViolation, gl_destroyErr1RequiresViolation, gl_destroyErr6RequiresViolation, gl_destroyErr7RequiresViolation, gl_destroyErr3RequiresViolation, gl_destroyErr5RequiresViolation]=== [2018-01-24 16:03:19,414 INFO L82 PathProgramCache]: Analyzing trace with hash -935456333, now seen corresponding path program 1 times [2018-01-24 16:03:19,415 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-24 16:03:19,416 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 16:03:19,416 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-24 16:03:19,416 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 16:03:19,416 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-24 16:03:19,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-24 16:03:19,437 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-24 16:03:19,492 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-24 16:03:19,492 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-24 16:03:19,492 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-01-24 16:03:19,493 INFO L252 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-01-24 16:03:19,493 INFO L409 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-01-24 16:03:19,493 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-01-24 16:03:19,493 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-01-24 16:03:19,493 INFO L87 Difference]: Start difference. First operand 238 states and 247 transitions. Second operand 4 states. [2018-01-24 16:03:19,649 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-24 16:03:19,649 INFO L93 Difference]: Finished difference Result 238 states and 247 transitions. [2018-01-24 16:03:19,649 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-01-24 16:03:19,650 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 16 [2018-01-24 16:03:19,650 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-24 16:03:19,651 INFO L225 Difference]: With dead ends: 238 [2018-01-24 16:03:19,651 INFO L226 Difference]: Without dead ends: 235 [2018-01-24 16:03:19,652 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 [2018-01-24 16:03:19,652 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 235 states. [2018-01-24 16:03:19,664 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 235 to 235. [2018-01-24 16:03:19,664 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 235 states. [2018-01-24 16:03:19,666 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 235 states to 235 states and 244 transitions. [2018-01-24 16:03:19,666 INFO L78 Accepts]: Start accepts. Automaton has 235 states and 244 transitions. Word has length 16 [2018-01-24 16:03:19,666 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-24 16:03:19,666 INFO L432 AbstractCegarLoop]: Abstraction has 235 states and 244 transitions. [2018-01-24 16:03:19,666 INFO L433 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-01-24 16:03:19,666 INFO L276 IsEmpty]: Start isEmpty. Operand 235 states and 244 transitions. [2018-01-24 16:03:19,667 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2018-01-24 16:03:19,667 INFO L314 BasicCegarLoop]: Found error trace [2018-01-24 16:03:19,667 INFO L322 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-24 16:03:19,667 INFO L371 AbstractCegarLoop]: === Iteration 5 === [__list_addErr1RequiresViolation, __list_addErr3RequiresViolation, __list_addErr0RequiresViolation, __list_addErr2RequiresViolation, __list_addErr4RequiresViolation, __list_addErr7RequiresViolation, __list_addErr5RequiresViolation, __list_addErr6RequiresViolation, ULTIMATE.initErr3RequiresViolation, ULTIMATE.initErr1RequiresViolation, ULTIMATE.initErr2RequiresViolation, ULTIMATE.initErr0RequiresViolation, list_moveErr0RequiresViolation, list_moveErr3RequiresViolation, list_moveErr2RequiresViolation, list_moveErr1RequiresViolation, val_from_nodeErr0RequiresViolation, val_from_nodeErr1RequiresViolation, gl_sort_passErr1RequiresViolation, gl_sort_passErr3RequiresViolation, gl_sort_passErr0RequiresViolation, gl_sort_passErr2RequiresViolation, inspectErr7RequiresViolation, inspectErr20RequiresViolation, inspectErr15RequiresViolation, inspectErr25RequiresViolation, inspectErr28RequiresViolation, inspectErr2RequiresViolation, inspectErr18RequiresViolation, inspectErr9RequiresViolation, inspectErr0RequiresViolation, inspectErr12RequiresViolation, inspectErr6RequiresViolation, inspectErr3RequiresViolation, inspectErr19RequiresViolation, inspectErr22RequiresViolation, inspectErr11RequiresViolation, inspectErr29RequiresViolation, inspectErr16RequiresViolation, inspectErr24RequiresViolation, inspectErr26RequiresViolation, inspectErr21RequiresViolation, inspectErr13RequiresViolation, inspectErr27RequiresViolation, inspectErr17RequiresViolation, inspectErr23RequiresViolation, inspectErr4RequiresViolation, inspectErr5RequiresViolation, inspectErr8RequiresViolation, inspectErr10RequiresViolation, inspectErr14RequiresViolation, inspectErr1RequiresViolation, list_addErr1RequiresViolation, list_addErr0RequiresViolation, mainErr0EnsuresViolation, __list_delErr0RequiresViolation, __list_delErr2RequiresViolation, __list_delErr3RequiresViolation, __list_delErr1RequiresViolation, gl_insertErr5RequiresViolation, gl_insertErr3RequiresViolation, gl_insertErr4RequiresViolation, gl_insertErr0RequiresViolation, gl_insertErr2RequiresViolation, gl_insertErr1RequiresViolation, gl_destroyErr4RequiresViolation, gl_destroyErr2RequiresViolation, gl_destroyErr0RequiresViolation, gl_destroyErr1RequiresViolation, gl_destroyErr6RequiresViolation, gl_destroyErr7RequiresViolation, gl_destroyErr3RequiresViolation, gl_destroyErr5RequiresViolation]=== [2018-01-24 16:03:19,668 INFO L82 PathProgramCache]: Analyzing trace with hash 1863730920, now seen corresponding path program 1 times [2018-01-24 16:03:19,668 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-24 16:03:19,669 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 16:03:19,669 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-24 16:03:19,669 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 16:03:19,669 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-24 16:03:19,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-24 16:03:19,697 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-24 16:03:19,794 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-24 16:03:19,794 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-24 16:03:19,794 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-01-24 16:03:19,794 INFO L252 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-01-24 16:03:19,794 INFO L409 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-01-24 16:03:19,795 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-01-24 16:03:19,795 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2018-01-24 16:03:19,795 INFO L87 Difference]: Start difference. First operand 235 states and 244 transitions. Second operand 7 states. [2018-01-24 16:03:20,127 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-24 16:03:20,127 INFO L93 Difference]: Finished difference Result 244 states and 252 transitions. [2018-01-24 16:03:20,127 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-01-24 16:03:20,127 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 19 [2018-01-24 16:03:20,128 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-24 16:03:20,129 INFO L225 Difference]: With dead ends: 244 [2018-01-24 16:03:20,130 INFO L226 Difference]: Without dead ends: 243 [2018-01-24 16:03:20,130 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 [2018-01-24 16:03:20,131 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 243 states. [2018-01-24 16:03:20,139 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 243 to 241. [2018-01-24 16:03:20,139 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 241 states. [2018-01-24 16:03:20,141 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 241 states to 241 states and 251 transitions. [2018-01-24 16:03:20,141 INFO L78 Accepts]: Start accepts. Automaton has 241 states and 251 transitions. Word has length 19 [2018-01-24 16:03:20,141 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-24 16:03:20,141 INFO L432 AbstractCegarLoop]: Abstraction has 241 states and 251 transitions. [2018-01-24 16:03:20,141 INFO L433 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-01-24 16:03:20,141 INFO L276 IsEmpty]: Start isEmpty. Operand 241 states and 251 transitions. [2018-01-24 16:03:20,142 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2018-01-24 16:03:20,142 INFO L314 BasicCegarLoop]: Found error trace [2018-01-24 16:03:20,142 INFO L322 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-24 16:03:20,142 INFO L371 AbstractCegarLoop]: === Iteration 6 === [__list_addErr1RequiresViolation, __list_addErr3RequiresViolation, __list_addErr0RequiresViolation, __list_addErr2RequiresViolation, __list_addErr4RequiresViolation, __list_addErr7RequiresViolation, __list_addErr5RequiresViolation, __list_addErr6RequiresViolation, ULTIMATE.initErr3RequiresViolation, ULTIMATE.initErr1RequiresViolation, ULTIMATE.initErr2RequiresViolation, ULTIMATE.initErr0RequiresViolation, list_moveErr0RequiresViolation, list_moveErr3RequiresViolation, list_moveErr2RequiresViolation, list_moveErr1RequiresViolation, val_from_nodeErr0RequiresViolation, val_from_nodeErr1RequiresViolation, gl_sort_passErr1RequiresViolation, gl_sort_passErr3RequiresViolation, gl_sort_passErr0RequiresViolation, gl_sort_passErr2RequiresViolation, inspectErr7RequiresViolation, inspectErr20RequiresViolation, inspectErr15RequiresViolation, inspectErr25RequiresViolation, inspectErr28RequiresViolation, inspectErr2RequiresViolation, inspectErr18RequiresViolation, inspectErr9RequiresViolation, inspectErr0RequiresViolation, inspectErr12RequiresViolation, inspectErr6RequiresViolation, inspectErr3RequiresViolation, inspectErr19RequiresViolation, inspectErr22RequiresViolation, inspectErr11RequiresViolation, inspectErr29RequiresViolation, inspectErr16RequiresViolation, inspectErr24RequiresViolation, inspectErr26RequiresViolation, inspectErr21RequiresViolation, inspectErr13RequiresViolation, inspectErr27RequiresViolation, inspectErr17RequiresViolation, inspectErr23RequiresViolation, inspectErr4RequiresViolation, inspectErr5RequiresViolation, inspectErr8RequiresViolation, inspectErr10RequiresViolation, inspectErr14RequiresViolation, inspectErr1RequiresViolation, list_addErr1RequiresViolation, list_addErr0RequiresViolation, mainErr0EnsuresViolation, __list_delErr0RequiresViolation, __list_delErr2RequiresViolation, __list_delErr3RequiresViolation, __list_delErr1RequiresViolation, gl_insertErr5RequiresViolation, gl_insertErr3RequiresViolation, gl_insertErr4RequiresViolation, gl_insertErr0RequiresViolation, gl_insertErr2RequiresViolation, gl_insertErr1RequiresViolation, gl_destroyErr4RequiresViolation, gl_destroyErr2RequiresViolation, gl_destroyErr0RequiresViolation, gl_destroyErr1RequiresViolation, gl_destroyErr6RequiresViolation, gl_destroyErr7RequiresViolation, gl_destroyErr3RequiresViolation, gl_destroyErr5RequiresViolation]=== [2018-01-24 16:03:20,142 INFO L82 PathProgramCache]: Analyzing trace with hash 1863730921, now seen corresponding path program 1 times [2018-01-24 16:03:20,142 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-24 16:03:20,143 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 16:03:20,143 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-24 16:03:20,144 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 16:03:20,144 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-24 16:03:20,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-24 16:03:20,167 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-24 16:03:20,322 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-24 16:03:20,322 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-24 16:03:20,322 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2018-01-24 16:03:20,322 INFO L252 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-01-24 16:03:20,323 INFO L409 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-01-24 16:03:20,323 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-01-24 16:03:20,323 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2018-01-24 16:03:20,323 INFO L87 Difference]: Start difference. First operand 241 states and 251 transitions. Second operand 9 states. [2018-01-24 16:03:20,792 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-24 16:03:20,793 INFO L93 Difference]: Finished difference Result 242 states and 251 transitions. [2018-01-24 16:03:20,793 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-01-24 16:03:20,793 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 19 [2018-01-24 16:03:20,793 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-24 16:03:20,794 INFO L225 Difference]: With dead ends: 242 [2018-01-24 16:03:20,795 INFO L226 Difference]: Without dead ends: 238 [2018-01-24 16:03:20,795 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 [2018-01-24 16:03:20,796 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 238 states. [2018-01-24 16:03:20,808 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 238 to 238. [2018-01-24 16:03:20,808 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 238 states. [2018-01-24 16:03:20,810 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 238 states to 238 states and 246 transitions. [2018-01-24 16:03:20,811 INFO L78 Accepts]: Start accepts. Automaton has 238 states and 246 transitions. Word has length 19 [2018-01-24 16:03:20,811 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-24 16:03:20,811 INFO L432 AbstractCegarLoop]: Abstraction has 238 states and 246 transitions. [2018-01-24 16:03:20,811 INFO L433 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-01-24 16:03:20,812 INFO L276 IsEmpty]: Start isEmpty. Operand 238 states and 246 transitions. [2018-01-24 16:03:20,812 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2018-01-24 16:03:20,812 INFO L314 BasicCegarLoop]: Found error trace [2018-01-24 16:03:20,813 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] [2018-01-24 16:03:20,813 INFO L371 AbstractCegarLoop]: === Iteration 7 === [__list_addErr1RequiresViolation, __list_addErr3RequiresViolation, __list_addErr0RequiresViolation, __list_addErr2RequiresViolation, __list_addErr4RequiresViolation, __list_addErr7RequiresViolation, __list_addErr5RequiresViolation, __list_addErr6RequiresViolation, ULTIMATE.initErr3RequiresViolation, ULTIMATE.initErr1RequiresViolation, ULTIMATE.initErr2RequiresViolation, ULTIMATE.initErr0RequiresViolation, list_moveErr0RequiresViolation, list_moveErr3RequiresViolation, list_moveErr2RequiresViolation, list_moveErr1RequiresViolation, val_from_nodeErr0RequiresViolation, val_from_nodeErr1RequiresViolation, gl_sort_passErr1RequiresViolation, gl_sort_passErr3RequiresViolation, gl_sort_passErr0RequiresViolation, gl_sort_passErr2RequiresViolation, inspectErr7RequiresViolation, inspectErr20RequiresViolation, inspectErr15RequiresViolation, inspectErr25RequiresViolation, inspectErr28RequiresViolation, inspectErr2RequiresViolation, inspectErr18RequiresViolation, inspectErr9RequiresViolation, inspectErr0RequiresViolation, inspectErr12RequiresViolation, inspectErr6RequiresViolation, inspectErr3RequiresViolation, inspectErr19RequiresViolation, inspectErr22RequiresViolation, inspectErr11RequiresViolation, inspectErr29RequiresViolation, inspectErr16RequiresViolation, inspectErr24RequiresViolation, inspectErr26RequiresViolation, inspectErr21RequiresViolation, inspectErr13RequiresViolation, inspectErr27RequiresViolation, inspectErr17RequiresViolation, inspectErr23RequiresViolation, inspectErr4RequiresViolation, inspectErr5RequiresViolation, inspectErr8RequiresViolation, inspectErr10RequiresViolation, inspectErr14RequiresViolation, inspectErr1RequiresViolation, list_addErr1RequiresViolation, list_addErr0RequiresViolation, mainErr0EnsuresViolation, __list_delErr0RequiresViolation, __list_delErr2RequiresViolation, __list_delErr3RequiresViolation, __list_delErr1RequiresViolation, gl_insertErr5RequiresViolation, gl_insertErr3RequiresViolation, gl_insertErr4RequiresViolation, gl_insertErr0RequiresViolation, gl_insertErr2RequiresViolation, gl_insertErr1RequiresViolation, gl_destroyErr4RequiresViolation, gl_destroyErr2RequiresViolation, gl_destroyErr0RequiresViolation, gl_destroyErr1RequiresViolation, gl_destroyErr6RequiresViolation, gl_destroyErr7RequiresViolation, gl_destroyErr3RequiresViolation, gl_destroyErr5RequiresViolation]=== [2018-01-24 16:03:20,813 INFO L82 PathProgramCache]: Analyzing trace with hash 1366173164, now seen corresponding path program 1 times [2018-01-24 16:03:20,813 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-24 16:03:20,814 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 16:03:20,814 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-24 16:03:20,814 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 16:03:20,815 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-24 16:03:20,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-24 16:03:20,838 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-24 16:03:20,954 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-24 16:03:20,955 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-24 16:03:20,955 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2018-01-24 16:03:20,955 INFO L252 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-01-24 16:03:20,955 INFO L409 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-01-24 16:03:20,956 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-01-24 16:03:20,956 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2018-01-24 16:03:20,956 INFO L87 Difference]: Start difference. First operand 238 states and 246 transitions. Second operand 10 states. [2018-01-24 16:03:21,458 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-24 16:03:21,458 INFO L93 Difference]: Finished difference Result 265 states and 275 transitions. [2018-01-24 16:03:21,459 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2018-01-24 16:03:21,459 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 22 [2018-01-24 16:03:21,459 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-24 16:03:21,460 INFO L225 Difference]: With dead ends: 265 [2018-01-24 16:03:21,461 INFO L226 Difference]: Without dead ends: 264 [2018-01-24 16:03:21,461 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 [2018-01-24 16:03:21,462 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 264 states. [2018-01-24 16:03:21,472 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 264 to 256. [2018-01-24 16:03:21,473 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 256 states. [2018-01-24 16:03:21,474 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 256 states to 256 states and 273 transitions. [2018-01-24 16:03:21,474 INFO L78 Accepts]: Start accepts. Automaton has 256 states and 273 transitions. Word has length 22 [2018-01-24 16:03:21,475 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-24 16:03:21,475 INFO L432 AbstractCegarLoop]: Abstraction has 256 states and 273 transitions. [2018-01-24 16:03:21,475 INFO L433 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-01-24 16:03:21,475 INFO L276 IsEmpty]: Start isEmpty. Operand 256 states and 273 transitions. [2018-01-24 16:03:21,475 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2018-01-24 16:03:21,475 INFO L314 BasicCegarLoop]: Found error trace [2018-01-24 16:03:21,476 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] [2018-01-24 16:03:21,476 INFO L371 AbstractCegarLoop]: === Iteration 8 === [__list_addErr1RequiresViolation, __list_addErr3RequiresViolation, __list_addErr0RequiresViolation, __list_addErr2RequiresViolation, __list_addErr4RequiresViolation, __list_addErr7RequiresViolation, __list_addErr5RequiresViolation, __list_addErr6RequiresViolation, ULTIMATE.initErr3RequiresViolation, ULTIMATE.initErr1RequiresViolation, ULTIMATE.initErr2RequiresViolation, ULTIMATE.initErr0RequiresViolation, list_moveErr0RequiresViolation, list_moveErr3RequiresViolation, list_moveErr2RequiresViolation, list_moveErr1RequiresViolation, val_from_nodeErr0RequiresViolation, val_from_nodeErr1RequiresViolation, gl_sort_passErr1RequiresViolation, gl_sort_passErr3RequiresViolation, gl_sort_passErr0RequiresViolation, gl_sort_passErr2RequiresViolation, inspectErr7RequiresViolation, inspectErr20RequiresViolation, inspectErr15RequiresViolation, inspectErr25RequiresViolation, inspectErr28RequiresViolation, inspectErr2RequiresViolation, inspectErr18RequiresViolation, inspectErr9RequiresViolation, inspectErr0RequiresViolation, inspectErr12RequiresViolation, inspectErr6RequiresViolation, inspectErr3RequiresViolation, inspectErr19RequiresViolation, inspectErr22RequiresViolation, inspectErr11RequiresViolation, inspectErr29RequiresViolation, inspectErr16RequiresViolation, inspectErr24RequiresViolation, inspectErr26RequiresViolation, inspectErr21RequiresViolation, inspectErr13RequiresViolation, inspectErr27RequiresViolation, inspectErr17RequiresViolation, inspectErr23RequiresViolation, inspectErr4RequiresViolation, inspectErr5RequiresViolation, inspectErr8RequiresViolation, inspectErr10RequiresViolation, inspectErr14RequiresViolation, inspectErr1RequiresViolation, list_addErr1RequiresViolation, list_addErr0RequiresViolation, mainErr0EnsuresViolation, __list_delErr0RequiresViolation, __list_delErr2RequiresViolation, __list_delErr3RequiresViolation, __list_delErr1RequiresViolation, gl_insertErr5RequiresViolation, gl_insertErr3RequiresViolation, gl_insertErr4RequiresViolation, gl_insertErr0RequiresViolation, gl_insertErr2RequiresViolation, gl_insertErr1RequiresViolation, gl_destroyErr4RequiresViolation, gl_destroyErr2RequiresViolation, gl_destroyErr0RequiresViolation, gl_destroyErr1RequiresViolation, gl_destroyErr6RequiresViolation, gl_destroyErr7RequiresViolation, gl_destroyErr3RequiresViolation, gl_destroyErr5RequiresViolation]=== [2018-01-24 16:03:21,476 INFO L82 PathProgramCache]: Analyzing trace with hash 1366173165, now seen corresponding path program 1 times [2018-01-24 16:03:21,476 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-24 16:03:21,477 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 16:03:21,477 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-24 16:03:21,477 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 16:03:21,477 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-24 16:03:21,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-24 16:03:21,494 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-24 16:03:21,751 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-24 16:03:21,756 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-24 16:03:21,756 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2018-01-24 16:03:21,756 INFO L252 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-01-24 16:03:21,756 INFO L409 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-01-24 16:03:21,756 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-01-24 16:03:21,756 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2018-01-24 16:03:21,757 INFO L87 Difference]: Start difference. First operand 256 states and 273 transitions. Second operand 11 states. [2018-01-24 16:03:22,624 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-24 16:03:22,624 INFO L93 Difference]: Finished difference Result 485 states and 501 transitions. [2018-01-24 16:03:22,624 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2018-01-24 16:03:22,624 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 22 [2018-01-24 16:03:22,625 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-24 16:03:22,627 INFO L225 Difference]: With dead ends: 485 [2018-01-24 16:03:22,627 INFO L226 Difference]: Without dead ends: 484 [2018-01-24 16:03:22,627 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 [2018-01-24 16:03:22,628 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 484 states. [2018-01-24 16:03:22,652 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 484 to 400. [2018-01-24 16:03:22,652 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 400 states. [2018-01-24 16:03:22,656 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 400 states to 400 states and 473 transitions. [2018-01-24 16:03:22,657 INFO L78 Accepts]: Start accepts. Automaton has 400 states and 473 transitions. Word has length 22 [2018-01-24 16:03:22,657 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-24 16:03:22,657 INFO L432 AbstractCegarLoop]: Abstraction has 400 states and 473 transitions. [2018-01-24 16:03:22,657 INFO L433 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-01-24 16:03:22,657 INFO L276 IsEmpty]: Start isEmpty. Operand 400 states and 473 transitions. [2018-01-24 16:03:22,658 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2018-01-24 16:03:22,658 INFO L314 BasicCegarLoop]: Found error trace [2018-01-24 16:03:22,658 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] [2018-01-24 16:03:22,658 INFO L371 AbstractCegarLoop]: === Iteration 9 === [__list_addErr1RequiresViolation, __list_addErr3RequiresViolation, __list_addErr0RequiresViolation, __list_addErr2RequiresViolation, __list_addErr4RequiresViolation, __list_addErr7RequiresViolation, __list_addErr5RequiresViolation, __list_addErr6RequiresViolation, ULTIMATE.initErr3RequiresViolation, ULTIMATE.initErr1RequiresViolation, ULTIMATE.initErr2RequiresViolation, ULTIMATE.initErr0RequiresViolation, list_moveErr0RequiresViolation, list_moveErr3RequiresViolation, list_moveErr2RequiresViolation, list_moveErr1RequiresViolation, val_from_nodeErr0RequiresViolation, val_from_nodeErr1RequiresViolation, gl_sort_passErr1RequiresViolation, gl_sort_passErr3RequiresViolation, gl_sort_passErr0RequiresViolation, gl_sort_passErr2RequiresViolation, inspectErr7RequiresViolation, inspectErr20RequiresViolation, inspectErr15RequiresViolation, inspectErr25RequiresViolation, inspectErr28RequiresViolation, inspectErr2RequiresViolation, inspectErr18RequiresViolation, inspectErr9RequiresViolation, inspectErr0RequiresViolation, inspectErr12RequiresViolation, inspectErr6RequiresViolation, inspectErr3RequiresViolation, inspectErr19RequiresViolation, inspectErr22RequiresViolation, inspectErr11RequiresViolation, inspectErr29RequiresViolation, inspectErr16RequiresViolation, inspectErr24RequiresViolation, inspectErr26RequiresViolation, inspectErr21RequiresViolation, inspectErr13RequiresViolation, inspectErr27RequiresViolation, inspectErr17RequiresViolation, inspectErr23RequiresViolation, inspectErr4RequiresViolation, inspectErr5RequiresViolation, inspectErr8RequiresViolation, inspectErr10RequiresViolation, inspectErr14RequiresViolation, inspectErr1RequiresViolation, list_addErr1RequiresViolation, list_addErr0RequiresViolation, mainErr0EnsuresViolation, __list_delErr0RequiresViolation, __list_delErr2RequiresViolation, __list_delErr3RequiresViolation, __list_delErr1RequiresViolation, gl_insertErr5RequiresViolation, gl_insertErr3RequiresViolation, gl_insertErr4RequiresViolation, gl_insertErr0RequiresViolation, gl_insertErr2RequiresViolation, gl_insertErr1RequiresViolation, gl_destroyErr4RequiresViolation, gl_destroyErr2RequiresViolation, gl_destroyErr0RequiresViolation, gl_destroyErr1RequiresViolation, gl_destroyErr6RequiresViolation, gl_destroyErr7RequiresViolation, gl_destroyErr3RequiresViolation, gl_destroyErr5RequiresViolation]=== [2018-01-24 16:03:22,659 INFO L82 PathProgramCache]: Analyzing trace with hash -598304902, now seen corresponding path program 1 times [2018-01-24 16:03:22,659 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-24 16:03:22,660 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 16:03:22,660 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-24 16:03:22,660 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 16:03:22,660 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-24 16:03:22,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-24 16:03:22,676 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-24 16:03:22,748 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-24 16:03:22,748 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-24 16:03:22,748 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-01-24 16:03:22,749 INFO L252 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-01-24 16:03:22,749 INFO L409 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-01-24 16:03:22,749 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-01-24 16:03:22,749 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-01-24 16:03:22,750 INFO L87 Difference]: Start difference. First operand 400 states and 473 transitions. Second operand 7 states. [2018-01-24 16:03:23,238 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-24 16:03:23,239 INFO L93 Difference]: Finished difference Result 414 states and 487 transitions. [2018-01-24 16:03:23,239 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-01-24 16:03:23,239 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 23 [2018-01-24 16:03:23,240 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-24 16:03:23,242 INFO L225 Difference]: With dead ends: 414 [2018-01-24 16:03:23,242 INFO L226 Difference]: Without dead ends: 412 [2018-01-24 16:03:23,244 INFO L525 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2018-01-24 16:03:23,245 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 412 states. [2018-01-24 16:03:23,265 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 412 to 271. [2018-01-24 16:03:23,265 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 271 states. [2018-01-24 16:03:23,267 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 271 states to 271 states and 288 transitions. [2018-01-24 16:03:23,268 INFO L78 Accepts]: Start accepts. Automaton has 271 states and 288 transitions. Word has length 23 [2018-01-24 16:03:23,268 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-24 16:03:23,268 INFO L432 AbstractCegarLoop]: Abstraction has 271 states and 288 transitions. [2018-01-24 16:03:23,268 INFO L433 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-01-24 16:03:23,268 INFO L276 IsEmpty]: Start isEmpty. Operand 271 states and 288 transitions. [2018-01-24 16:03:23,269 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2018-01-24 16:03:23,269 INFO L314 BasicCegarLoop]: Found error trace [2018-01-24 16:03:23,269 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] [2018-01-24 16:03:23,269 INFO L371 AbstractCegarLoop]: === Iteration 10 === [__list_addErr1RequiresViolation, __list_addErr3RequiresViolation, __list_addErr0RequiresViolation, __list_addErr2RequiresViolation, __list_addErr4RequiresViolation, __list_addErr7RequiresViolation, __list_addErr5RequiresViolation, __list_addErr6RequiresViolation, ULTIMATE.initErr3RequiresViolation, ULTIMATE.initErr1RequiresViolation, ULTIMATE.initErr2RequiresViolation, ULTIMATE.initErr0RequiresViolation, list_moveErr0RequiresViolation, list_moveErr3RequiresViolation, list_moveErr2RequiresViolation, list_moveErr1RequiresViolation, val_from_nodeErr0RequiresViolation, val_from_nodeErr1RequiresViolation, gl_sort_passErr1RequiresViolation, gl_sort_passErr3RequiresViolation, gl_sort_passErr0RequiresViolation, gl_sort_passErr2RequiresViolation, inspectErr7RequiresViolation, inspectErr20RequiresViolation, inspectErr15RequiresViolation, inspectErr25RequiresViolation, inspectErr28RequiresViolation, inspectErr2RequiresViolation, inspectErr18RequiresViolation, inspectErr9RequiresViolation, inspectErr0RequiresViolation, inspectErr12RequiresViolation, inspectErr6RequiresViolation, inspectErr3RequiresViolation, inspectErr19RequiresViolation, inspectErr22RequiresViolation, inspectErr11RequiresViolation, inspectErr29RequiresViolation, inspectErr16RequiresViolation, inspectErr24RequiresViolation, inspectErr26RequiresViolation, inspectErr21RequiresViolation, inspectErr13RequiresViolation, inspectErr27RequiresViolation, inspectErr17RequiresViolation, inspectErr23RequiresViolation, inspectErr4RequiresViolation, inspectErr5RequiresViolation, inspectErr8RequiresViolation, inspectErr10RequiresViolation, inspectErr14RequiresViolation, inspectErr1RequiresViolation, list_addErr1RequiresViolation, list_addErr0RequiresViolation, mainErr0EnsuresViolation, __list_delErr0RequiresViolation, __list_delErr2RequiresViolation, __list_delErr3RequiresViolation, __list_delErr1RequiresViolation, gl_insertErr5RequiresViolation, gl_insertErr3RequiresViolation, gl_insertErr4RequiresViolation, gl_insertErr0RequiresViolation, gl_insertErr2RequiresViolation, gl_insertErr1RequiresViolation, gl_destroyErr4RequiresViolation, gl_destroyErr2RequiresViolation, gl_destroyErr0RequiresViolation, gl_destroyErr1RequiresViolation, gl_destroyErr6RequiresViolation, gl_destroyErr7RequiresViolation, gl_destroyErr3RequiresViolation, gl_destroyErr5RequiresViolation]=== [2018-01-24 16:03:23,270 INFO L82 PathProgramCache]: Analyzing trace with hash -598304901, now seen corresponding path program 1 times [2018-01-24 16:03:23,270 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-24 16:03:23,271 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 16:03:23,271 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-24 16:03:23,271 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 16:03:23,271 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-24 16:03:23,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-24 16:03:23,287 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-24 16:03:23,414 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-24 16:03:23,414 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-24 16:03:23,414 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-01-24 16:03:23,414 INFO L252 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-01-24 16:03:23,415 INFO L409 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-01-24 16:03:23,415 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-01-24 16:03:23,415 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2018-01-24 16:03:23,416 INFO L87 Difference]: Start difference. First operand 271 states and 288 transitions. Second operand 8 states. [2018-01-24 16:03:23,777 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-24 16:03:23,777 INFO L93 Difference]: Finished difference Result 277 states and 288 transitions. [2018-01-24 16:03:23,778 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-01-24 16:03:23,778 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 23 [2018-01-24 16:03:23,778 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-24 16:03:23,779 INFO L225 Difference]: With dead ends: 277 [2018-01-24 16:03:23,780 INFO L226 Difference]: Without dead ends: 275 [2018-01-24 16:03:23,780 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 [2018-01-24 16:03:23,780 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 275 states. [2018-01-24 16:03:23,795 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 275 to 271. [2018-01-24 16:03:23,795 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 271 states. [2018-01-24 16:03:23,797 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 271 states to 271 states and 284 transitions. [2018-01-24 16:03:23,798 INFO L78 Accepts]: Start accepts. Automaton has 271 states and 284 transitions. Word has length 23 [2018-01-24 16:03:23,798 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-24 16:03:23,798 INFO L432 AbstractCegarLoop]: Abstraction has 271 states and 284 transitions. [2018-01-24 16:03:23,798 INFO L433 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-01-24 16:03:23,798 INFO L276 IsEmpty]: Start isEmpty. Operand 271 states and 284 transitions. [2018-01-24 16:03:23,799 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2018-01-24 16:03:23,799 INFO L314 BasicCegarLoop]: Found error trace [2018-01-24 16:03:23,799 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] [2018-01-24 16:03:23,799 INFO L371 AbstractCegarLoop]: === Iteration 11 === [__list_addErr1RequiresViolation, __list_addErr3RequiresViolation, __list_addErr0RequiresViolation, __list_addErr2RequiresViolation, __list_addErr4RequiresViolation, __list_addErr7RequiresViolation, __list_addErr5RequiresViolation, __list_addErr6RequiresViolation, ULTIMATE.initErr3RequiresViolation, ULTIMATE.initErr1RequiresViolation, ULTIMATE.initErr2RequiresViolation, ULTIMATE.initErr0RequiresViolation, list_moveErr0RequiresViolation, list_moveErr3RequiresViolation, list_moveErr2RequiresViolation, list_moveErr1RequiresViolation, val_from_nodeErr0RequiresViolation, val_from_nodeErr1RequiresViolation, gl_sort_passErr1RequiresViolation, gl_sort_passErr3RequiresViolation, gl_sort_passErr0RequiresViolation, gl_sort_passErr2RequiresViolation, inspectErr7RequiresViolation, inspectErr20RequiresViolation, inspectErr15RequiresViolation, inspectErr25RequiresViolation, inspectErr28RequiresViolation, inspectErr2RequiresViolation, inspectErr18RequiresViolation, inspectErr9RequiresViolation, inspectErr0RequiresViolation, inspectErr12RequiresViolation, inspectErr6RequiresViolation, inspectErr3RequiresViolation, inspectErr19RequiresViolation, inspectErr22RequiresViolation, inspectErr11RequiresViolation, inspectErr29RequiresViolation, inspectErr16RequiresViolation, inspectErr24RequiresViolation, inspectErr26RequiresViolation, inspectErr21RequiresViolation, inspectErr13RequiresViolation, inspectErr27RequiresViolation, inspectErr17RequiresViolation, inspectErr23RequiresViolation, inspectErr4RequiresViolation, inspectErr5RequiresViolation, inspectErr8RequiresViolation, inspectErr10RequiresViolation, inspectErr14RequiresViolation, inspectErr1RequiresViolation, list_addErr1RequiresViolation, list_addErr0RequiresViolation, mainErr0EnsuresViolation, __list_delErr0RequiresViolation, __list_delErr2RequiresViolation, __list_delErr3RequiresViolation, __list_delErr1RequiresViolation, gl_insertErr5RequiresViolation, gl_insertErr3RequiresViolation, gl_insertErr4RequiresViolation, gl_insertErr0RequiresViolation, gl_insertErr2RequiresViolation, gl_insertErr1RequiresViolation, gl_destroyErr4RequiresViolation, gl_destroyErr2RequiresViolation, gl_destroyErr0RequiresViolation, gl_destroyErr1RequiresViolation, gl_destroyErr6RequiresViolation, gl_destroyErr7RequiresViolation, gl_destroyErr3RequiresViolation, gl_destroyErr5RequiresViolation]=== [2018-01-24 16:03:23,800 INFO L82 PathProgramCache]: Analyzing trace with hash 554606109, now seen corresponding path program 1 times [2018-01-24 16:03:23,800 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-24 16:03:23,801 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 16:03:23,801 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-24 16:03:23,801 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 16:03:23,801 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-24 16:03:23,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-24 16:03:23,817 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-24 16:03:23,866 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-24 16:03:23,866 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-24 16:03:23,866 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-01-24 16:03:23,867 INFO L252 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-01-24 16:03:23,867 INFO L409 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-01-24 16:03:23,867 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-01-24 16:03:23,867 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-01-24 16:03:23,868 INFO L87 Difference]: Start difference. First operand 271 states and 284 transitions. Second operand 5 states. [2018-01-24 16:03:24,159 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-24 16:03:24,160 INFO L93 Difference]: Finished difference Result 271 states and 284 transitions. [2018-01-24 16:03:24,160 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-01-24 16:03:24,160 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 25 [2018-01-24 16:03:24,160 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-24 16:03:24,162 INFO L225 Difference]: With dead ends: 271 [2018-01-24 16:03:24,162 INFO L226 Difference]: Without dead ends: 270 [2018-01-24 16:03:24,162 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 [2018-01-24 16:03:24,163 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 270 states. [2018-01-24 16:03:24,172 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 270 to 270. [2018-01-24 16:03:24,173 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 270 states. [2018-01-24 16:03:24,174 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 270 states to 270 states and 281 transitions. [2018-01-24 16:03:24,174 INFO L78 Accepts]: Start accepts. Automaton has 270 states and 281 transitions. Word has length 25 [2018-01-24 16:03:24,175 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-24 16:03:24,175 INFO L432 AbstractCegarLoop]: Abstraction has 270 states and 281 transitions. [2018-01-24 16:03:24,175 INFO L433 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-01-24 16:03:24,175 INFO L276 IsEmpty]: Start isEmpty. Operand 270 states and 281 transitions. [2018-01-24 16:03:24,176 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2018-01-24 16:03:24,176 INFO L314 BasicCegarLoop]: Found error trace [2018-01-24 16:03:24,176 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] [2018-01-24 16:03:24,176 INFO L371 AbstractCegarLoop]: === Iteration 12 === [__list_addErr1RequiresViolation, __list_addErr3RequiresViolation, __list_addErr0RequiresViolation, __list_addErr2RequiresViolation, __list_addErr4RequiresViolation, __list_addErr7RequiresViolation, __list_addErr5RequiresViolation, __list_addErr6RequiresViolation, ULTIMATE.initErr3RequiresViolation, ULTIMATE.initErr1RequiresViolation, ULTIMATE.initErr2RequiresViolation, ULTIMATE.initErr0RequiresViolation, list_moveErr0RequiresViolation, list_moveErr3RequiresViolation, list_moveErr2RequiresViolation, list_moveErr1RequiresViolation, val_from_nodeErr0RequiresViolation, val_from_nodeErr1RequiresViolation, gl_sort_passErr1RequiresViolation, gl_sort_passErr3RequiresViolation, gl_sort_passErr0RequiresViolation, gl_sort_passErr2RequiresViolation, inspectErr7RequiresViolation, inspectErr20RequiresViolation, inspectErr15RequiresViolation, inspectErr25RequiresViolation, inspectErr28RequiresViolation, inspectErr2RequiresViolation, inspectErr18RequiresViolation, inspectErr9RequiresViolation, inspectErr0RequiresViolation, inspectErr12RequiresViolation, inspectErr6RequiresViolation, inspectErr3RequiresViolation, inspectErr19RequiresViolation, inspectErr22RequiresViolation, inspectErr11RequiresViolation, inspectErr29RequiresViolation, inspectErr16RequiresViolation, inspectErr24RequiresViolation, inspectErr26RequiresViolation, inspectErr21RequiresViolation, inspectErr13RequiresViolation, inspectErr27RequiresViolation, inspectErr17RequiresViolation, inspectErr23RequiresViolation, inspectErr4RequiresViolation, inspectErr5RequiresViolation, inspectErr8RequiresViolation, inspectErr10RequiresViolation, inspectErr14RequiresViolation, inspectErr1RequiresViolation, list_addErr1RequiresViolation, list_addErr0RequiresViolation, mainErr0EnsuresViolation, __list_delErr0RequiresViolation, __list_delErr2RequiresViolation, __list_delErr3RequiresViolation, __list_delErr1RequiresViolation, gl_insertErr5RequiresViolation, gl_insertErr3RequiresViolation, gl_insertErr4RequiresViolation, gl_insertErr0RequiresViolation, gl_insertErr2RequiresViolation, gl_insertErr1RequiresViolation, gl_destroyErr4RequiresViolation, gl_destroyErr2RequiresViolation, gl_destroyErr0RequiresViolation, gl_destroyErr1RequiresViolation, gl_destroyErr6RequiresViolation, gl_destroyErr7RequiresViolation, gl_destroyErr3RequiresViolation, gl_destroyErr5RequiresViolation]=== [2018-01-24 16:03:24,176 INFO L82 PathProgramCache]: Analyzing trace with hash 554606110, now seen corresponding path program 1 times [2018-01-24 16:03:24,176 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-24 16:03:24,177 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 16:03:24,177 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-24 16:03:24,177 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 16:03:24,178 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-24 16:03:24,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-24 16:03:24,191 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-24 16:03:24,400 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-24 16:03:24,401 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-24 16:03:24,401 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-01-24 16:03:24,401 INFO L252 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-01-24 16:03:24,401 INFO L409 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-01-24 16:03:24,401 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-01-24 16:03:24,402 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2018-01-24 16:03:24,402 INFO L87 Difference]: Start difference. First operand 270 states and 281 transitions. Second operand 8 states. [2018-01-24 16:03:24,609 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-24 16:03:24,609 INFO L93 Difference]: Finished difference Result 273 states and 281 transitions. [2018-01-24 16:03:24,609 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-01-24 16:03:24,609 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 25 [2018-01-24 16:03:24,609 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-24 16:03:24,611 INFO L225 Difference]: With dead ends: 273 [2018-01-24 16:03:24,611 INFO L226 Difference]: Without dead ends: 272 [2018-01-24 16:03:24,611 INFO L525 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=42, Invalid=114, Unknown=0, NotChecked=0, Total=156 [2018-01-24 16:03:24,612 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 272 states. [2018-01-24 16:03:24,629 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 272 to 270. [2018-01-24 16:03:24,629 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 270 states. [2018-01-24 16:03:24,630 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 270 states to 270 states and 279 transitions. [2018-01-24 16:03:24,631 INFO L78 Accepts]: Start accepts. Automaton has 270 states and 279 transitions. Word has length 25 [2018-01-24 16:03:24,631 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-24 16:03:24,631 INFO L432 AbstractCegarLoop]: Abstraction has 270 states and 279 transitions. [2018-01-24 16:03:24,631 INFO L433 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-01-24 16:03:24,631 INFO L276 IsEmpty]: Start isEmpty. Operand 270 states and 279 transitions. [2018-01-24 16:03:24,633 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2018-01-24 16:03:24,633 INFO L314 BasicCegarLoop]: Found error trace [2018-01-24 16:03:24,633 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, 1, 1, 1, 1, 1, 1, 1] [2018-01-24 16:03:24,633 INFO L371 AbstractCegarLoop]: === Iteration 13 === [__list_addErr1RequiresViolation, __list_addErr3RequiresViolation, __list_addErr0RequiresViolation, __list_addErr2RequiresViolation, __list_addErr4RequiresViolation, __list_addErr7RequiresViolation, __list_addErr5RequiresViolation, __list_addErr6RequiresViolation, ULTIMATE.initErr3RequiresViolation, ULTIMATE.initErr1RequiresViolation, ULTIMATE.initErr2RequiresViolation, ULTIMATE.initErr0RequiresViolation, list_moveErr0RequiresViolation, list_moveErr3RequiresViolation, list_moveErr2RequiresViolation, list_moveErr1RequiresViolation, val_from_nodeErr0RequiresViolation, val_from_nodeErr1RequiresViolation, gl_sort_passErr1RequiresViolation, gl_sort_passErr3RequiresViolation, gl_sort_passErr0RequiresViolation, gl_sort_passErr2RequiresViolation, inspectErr7RequiresViolation, inspectErr20RequiresViolation, inspectErr15RequiresViolation, inspectErr25RequiresViolation, inspectErr28RequiresViolation, inspectErr2RequiresViolation, inspectErr18RequiresViolation, inspectErr9RequiresViolation, inspectErr0RequiresViolation, inspectErr12RequiresViolation, inspectErr6RequiresViolation, inspectErr3RequiresViolation, inspectErr19RequiresViolation, inspectErr22RequiresViolation, inspectErr11RequiresViolation, inspectErr29RequiresViolation, inspectErr16RequiresViolation, inspectErr24RequiresViolation, inspectErr26RequiresViolation, inspectErr21RequiresViolation, inspectErr13RequiresViolation, inspectErr27RequiresViolation, inspectErr17RequiresViolation, inspectErr23RequiresViolation, inspectErr4RequiresViolation, inspectErr5RequiresViolation, inspectErr8RequiresViolation, inspectErr10RequiresViolation, inspectErr14RequiresViolation, inspectErr1RequiresViolation, list_addErr1RequiresViolation, list_addErr0RequiresViolation, mainErr0EnsuresViolation, __list_delErr0RequiresViolation, __list_delErr2RequiresViolation, __list_delErr3RequiresViolation, __list_delErr1RequiresViolation, gl_insertErr5RequiresViolation, gl_insertErr3RequiresViolation, gl_insertErr4RequiresViolation, gl_insertErr0RequiresViolation, gl_insertErr2RequiresViolation, gl_insertErr1RequiresViolation, gl_destroyErr4RequiresViolation, gl_destroyErr2RequiresViolation, gl_destroyErr0RequiresViolation, gl_destroyErr1RequiresViolation, gl_destroyErr6RequiresViolation, gl_destroyErr7RequiresViolation, gl_destroyErr3RequiresViolation, gl_destroyErr5RequiresViolation]=== [2018-01-24 16:03:24,633 INFO L82 PathProgramCache]: Analyzing trace with hash 1199658537, now seen corresponding path program 1 times [2018-01-24 16:03:24,634 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-24 16:03:24,634 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 16:03:24,635 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-24 16:03:24,635 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 16:03:24,635 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-24 16:03:24,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-24 16:03:24,654 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-24 16:03:24,872 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-24 16:03:24,872 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-24 16:03:24,872 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2018-01-24 16:03:24,872 INFO L252 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-01-24 16:03:24,873 INFO L409 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-01-24 16:03:24,873 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-01-24 16:03:24,873 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2018-01-24 16:03:24,873 INFO L87 Difference]: Start difference. First operand 270 states and 279 transitions. Second operand 11 states. [2018-01-24 16:03:25,319 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-24 16:03:25,319 INFO L93 Difference]: Finished difference Result 270 states and 279 transitions. [2018-01-24 16:03:25,319 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-01-24 16:03:25,319 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 48 [2018-01-24 16:03:25,320 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-24 16:03:25,321 INFO L225 Difference]: With dead ends: 270 [2018-01-24 16:03:25,321 INFO L226 Difference]: Without dead ends: 269 [2018-01-24 16:03:25,322 INFO L525 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=70, Invalid=236, Unknown=0, NotChecked=0, Total=306 [2018-01-24 16:03:25,322 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 269 states. [2018-01-24 16:03:25,333 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 269 to 269. [2018-01-24 16:03:25,333 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 269 states. [2018-01-24 16:03:25,334 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 269 states to 269 states and 278 transitions. [2018-01-24 16:03:25,335 INFO L78 Accepts]: Start accepts. Automaton has 269 states and 278 transitions. Word has length 48 [2018-01-24 16:03:25,335 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-24 16:03:25,335 INFO L432 AbstractCegarLoop]: Abstraction has 269 states and 278 transitions. [2018-01-24 16:03:25,335 INFO L433 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-01-24 16:03:25,335 INFO L276 IsEmpty]: Start isEmpty. Operand 269 states and 278 transitions. [2018-01-24 16:03:25,336 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2018-01-24 16:03:25,336 INFO L314 BasicCegarLoop]: Found error trace [2018-01-24 16:03:25,336 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, 1, 1, 1, 1, 1, 1, 1] [2018-01-24 16:03:25,337 INFO L371 AbstractCegarLoop]: === Iteration 14 === [__list_addErr1RequiresViolation, __list_addErr3RequiresViolation, __list_addErr0RequiresViolation, __list_addErr2RequiresViolation, __list_addErr4RequiresViolation, __list_addErr7RequiresViolation, __list_addErr5RequiresViolation, __list_addErr6RequiresViolation, ULTIMATE.initErr3RequiresViolation, ULTIMATE.initErr1RequiresViolation, ULTIMATE.initErr2RequiresViolation, ULTIMATE.initErr0RequiresViolation, list_moveErr0RequiresViolation, list_moveErr3RequiresViolation, list_moveErr2RequiresViolation, list_moveErr1RequiresViolation, val_from_nodeErr0RequiresViolation, val_from_nodeErr1RequiresViolation, gl_sort_passErr1RequiresViolation, gl_sort_passErr3RequiresViolation, gl_sort_passErr0RequiresViolation, gl_sort_passErr2RequiresViolation, inspectErr7RequiresViolation, inspectErr20RequiresViolation, inspectErr15RequiresViolation, inspectErr25RequiresViolation, inspectErr28RequiresViolation, inspectErr2RequiresViolation, inspectErr18RequiresViolation, inspectErr9RequiresViolation, inspectErr0RequiresViolation, inspectErr12RequiresViolation, inspectErr6RequiresViolation, inspectErr3RequiresViolation, inspectErr19RequiresViolation, inspectErr22RequiresViolation, inspectErr11RequiresViolation, inspectErr29RequiresViolation, inspectErr16RequiresViolation, inspectErr24RequiresViolation, inspectErr26RequiresViolation, inspectErr21RequiresViolation, inspectErr13RequiresViolation, inspectErr27RequiresViolation, inspectErr17RequiresViolation, inspectErr23RequiresViolation, inspectErr4RequiresViolation, inspectErr5RequiresViolation, inspectErr8RequiresViolation, inspectErr10RequiresViolation, inspectErr14RequiresViolation, inspectErr1RequiresViolation, list_addErr1RequiresViolation, list_addErr0RequiresViolation, mainErr0EnsuresViolation, __list_delErr0RequiresViolation, __list_delErr2RequiresViolation, __list_delErr3RequiresViolation, __list_delErr1RequiresViolation, gl_insertErr5RequiresViolation, gl_insertErr3RequiresViolation, gl_insertErr4RequiresViolation, gl_insertErr0RequiresViolation, gl_insertErr2RequiresViolation, gl_insertErr1RequiresViolation, gl_destroyErr4RequiresViolation, gl_destroyErr2RequiresViolation, gl_destroyErr0RequiresViolation, gl_destroyErr1RequiresViolation, gl_destroyErr6RequiresViolation, gl_destroyErr7RequiresViolation, gl_destroyErr3RequiresViolation, gl_destroyErr5RequiresViolation]=== [2018-01-24 16:03:25,337 INFO L82 PathProgramCache]: Analyzing trace with hash 1199658536, now seen corresponding path program 1 times [2018-01-24 16:03:25,337 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-24 16:03:25,338 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 16:03:25,338 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-24 16:03:25,338 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 16:03:25,338 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-24 16:03:25,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-24 16:03:25,351 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-24 16:03:25,484 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-24 16:03:25,485 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-24 16:03:25,485 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-01-24 16:03:25,485 INFO L252 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-01-24 16:03:25,485 INFO L409 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-01-24 16:03:25,485 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-01-24 16:03:25,486 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-01-24 16:03:25,486 INFO L87 Difference]: Start difference. First operand 269 states and 278 transitions. Second operand 7 states. [2018-01-24 16:03:25,952 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-24 16:03:25,952 INFO L93 Difference]: Finished difference Result 269 states and 278 transitions. [2018-01-24 16:03:25,952 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-01-24 16:03:25,953 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 48 [2018-01-24 16:03:25,953 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-24 16:03:25,954 INFO L225 Difference]: With dead ends: 269 [2018-01-24 16:03:25,954 INFO L226 Difference]: Without dead ends: 264 [2018-01-24 16:03:25,955 INFO L525 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=96, Unknown=0, NotChecked=0, Total=132 [2018-01-24 16:03:25,955 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 264 states. [2018-01-24 16:03:25,965 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 264 to 264. [2018-01-24 16:03:25,966 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 264 states. [2018-01-24 16:03:25,967 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 264 states to 264 states and 273 transitions. [2018-01-24 16:03:25,967 INFO L78 Accepts]: Start accepts. Automaton has 264 states and 273 transitions. Word has length 48 [2018-01-24 16:03:25,967 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-24 16:03:25,967 INFO L432 AbstractCegarLoop]: Abstraction has 264 states and 273 transitions. [2018-01-24 16:03:25,968 INFO L433 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-01-24 16:03:25,968 INFO L276 IsEmpty]: Start isEmpty. Operand 264 states and 273 transitions. [2018-01-24 16:03:25,968 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2018-01-24 16:03:25,969 INFO L314 BasicCegarLoop]: Found error trace [2018-01-24 16:03:25,969 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, 1, 1, 1, 1] [2018-01-24 16:03:25,969 INFO L371 AbstractCegarLoop]: === Iteration 15 === [__list_addErr1RequiresViolation, __list_addErr3RequiresViolation, __list_addErr0RequiresViolation, __list_addErr2RequiresViolation, __list_addErr4RequiresViolation, __list_addErr7RequiresViolation, __list_addErr5RequiresViolation, __list_addErr6RequiresViolation, ULTIMATE.initErr3RequiresViolation, ULTIMATE.initErr1RequiresViolation, ULTIMATE.initErr2RequiresViolation, ULTIMATE.initErr0RequiresViolation, list_moveErr0RequiresViolation, list_moveErr3RequiresViolation, list_moveErr2RequiresViolation, list_moveErr1RequiresViolation, val_from_nodeErr0RequiresViolation, val_from_nodeErr1RequiresViolation, gl_sort_passErr1RequiresViolation, gl_sort_passErr3RequiresViolation, gl_sort_passErr0RequiresViolation, gl_sort_passErr2RequiresViolation, inspectErr7RequiresViolation, inspectErr20RequiresViolation, inspectErr15RequiresViolation, inspectErr25RequiresViolation, inspectErr28RequiresViolation, inspectErr2RequiresViolation, inspectErr18RequiresViolation, inspectErr9RequiresViolation, inspectErr0RequiresViolation, inspectErr12RequiresViolation, inspectErr6RequiresViolation, inspectErr3RequiresViolation, inspectErr19RequiresViolation, inspectErr22RequiresViolation, inspectErr11RequiresViolation, inspectErr29RequiresViolation, inspectErr16RequiresViolation, inspectErr24RequiresViolation, inspectErr26RequiresViolation, inspectErr21RequiresViolation, inspectErr13RequiresViolation, inspectErr27RequiresViolation, inspectErr17RequiresViolation, inspectErr23RequiresViolation, inspectErr4RequiresViolation, inspectErr5RequiresViolation, inspectErr8RequiresViolation, inspectErr10RequiresViolation, inspectErr14RequiresViolation, inspectErr1RequiresViolation, list_addErr1RequiresViolation, list_addErr0RequiresViolation, mainErr0EnsuresViolation, __list_delErr0RequiresViolation, __list_delErr2RequiresViolation, __list_delErr3RequiresViolation, __list_delErr1RequiresViolation, gl_insertErr5RequiresViolation, gl_insertErr3RequiresViolation, gl_insertErr4RequiresViolation, gl_insertErr0RequiresViolation, gl_insertErr2RequiresViolation, gl_insertErr1RequiresViolation, gl_destroyErr4RequiresViolation, gl_destroyErr2RequiresViolation, gl_destroyErr0RequiresViolation, gl_destroyErr1RequiresViolation, gl_destroyErr6RequiresViolation, gl_destroyErr7RequiresViolation, gl_destroyErr3RequiresViolation, gl_destroyErr5RequiresViolation]=== [2018-01-24 16:03:25,969 INFO L82 PathProgramCache]: Analyzing trace with hash 652522709, now seen corresponding path program 1 times [2018-01-24 16:03:25,969 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-24 16:03:25,970 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 16:03:25,970 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-24 16:03:25,970 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 16:03:25,971 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-24 16:03:26,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-24 16:03:26,001 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-24 16:03:27,058 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 4 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-24 16:03:27,058 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-01-24 16:03:27,100 INFO L187 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-01-24 16:03:27,100 INFO L199 CegarAbsIntRunner]: Running AI on error trace of length 53 with the following transitions: [2018-01-24 16:03:27,102 INFO L201 CegarAbsIntRunner]: [0], [1], [2], [4], [7], [10], [13], [97], [99], [101], [106], [142], [143], [144], [147], [150], [524], [525], [529], [530], [534], [535], [536], [541], [543], [550], [551], [554], [560], [566], [573], [589], [590], [625], [626], [627], [628], [629], [631], [632] [2018-01-24 16:03:27,152 INFO L147 AbstractInterpreter]: Using domain VPDomain [2018-01-24 16:03:27,152 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