java -Xmx6000000000 -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data ./data --generate-csv --csv-dir ../../../releaseScripts/default/UAutomizer-linux/csv -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/ai/eq-bench/svcomp-DerefFreeMemtrack-32bit-Automizer_Taipan+AI_EQ_smtcomp.epf -i ../../../trunk/examples/svcomp/heap-manipulation/bubble_sort_linux_true-unreach-call_true-valid-memsafety.i -------------------------------------------------------------------------------- This is Ultimate 0.1.23-6b94a2f [2018-01-25 06:12:14,791 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-01-25 06:12:14,793 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-01-25 06:12:14,808 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-01-25 06:12:14,808 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-01-25 06:12:14,810 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-01-25 06:12:14,811 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-01-25 06:12:14,812 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-01-25 06:12:14,814 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-01-25 06:12:14,814 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-01-25 06:12:14,815 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-01-25 06:12:14,815 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-01-25 06:12:14,816 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-01-25 06:12:14,817 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-01-25 06:12:14,818 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-01-25 06:12:14,820 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-01-25 06:12:14,823 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-01-25 06:12:14,825 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-01-25 06:12:14,826 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-01-25 06:12:14,827 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-01-25 06:12:14,830 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-01-25 06:12:14,830 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-01-25 06:12:14,830 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-01-25 06:12:14,832 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-01-25 06:12:14,832 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-01-25 06:12:14,834 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-01-25 06:12:14,834 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-01-25 06:12:14,835 INFO L177 SettingsManager]: PEA to Boogie provides no preferences, ignoring... [2018-01-25 06:12:14,835 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-01-25 06:12:14,835 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-01-25 06:12:14,836 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-01-25 06:12:14,836 INFO L98 SettingsManager]: Beginning loading settings from /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/ai/eq-bench/svcomp-DerefFreeMemtrack-32bit-Automizer_Taipan+AI_EQ_smtcomp.epf [2018-01-25 06:12:14,847 INFO L110 SettingsManager]: Loading preferences was successful [2018-01-25 06:12:14,847 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-01-25 06:12:14,848 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-01-25 06:12:14,848 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-01-25 06:12:14,848 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-01-25 06:12:14,848 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=VPDomain [2018-01-25 06:12:14,849 INFO L133 SettingsManager]: * Precise comparison operator=true [2018-01-25 06:12:14,849 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-01-25 06:12:14,849 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-01-25 06:12:14,850 INFO L133 SettingsManager]: * sizeof long=4 [2018-01-25 06:12:14,850 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-01-25 06:12:14,850 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-01-25 06:12:14,850 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-01-25 06:12:14,851 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-01-25 06:12:14,851 INFO L133 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2018-01-25 06:12:14,851 INFO L133 SettingsManager]: * Bitprecise bitfields=true [2018-01-25 06:12:14,851 INFO L133 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2018-01-25 06:12:14,851 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-01-25 06:12:14,852 INFO L133 SettingsManager]: * sizeof long double=12 [2018-01-25 06:12:14,852 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-01-25 06:12:14,852 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-01-25 06:12:14,852 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-01-25 06:12:14,852 INFO L133 SettingsManager]: * Add additional assume for each assert=false [2018-01-25 06:12:14,853 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-01-25 06:12:14,853 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-01-25 06:12:14,853 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-01-25 06:12:14,853 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-01-25 06:12:14,853 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-01-25 06:12:14,854 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-01-25 06:12:14,854 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-01-25 06:12:14,854 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-01-25 06:12:14,854 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-01-25 06:12:14,854 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-01-25 06:12:14,855 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-01-25 06:12:14,855 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-01-25 06:12:14,856 INFO L133 SettingsManager]: * TransformationType=HEAP_SEPARATOR [2018-01-25 06:12:14,891 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-01-25 06:12:14,905 INFO L266 ainManager$Toolchain]: [Toolchain 1]: Parser(s) successfully initialized [2018-01-25 06:12:14,909 INFO L222 ainManager$Toolchain]: [Toolchain 1]: Toolchain data selected. [2018-01-25 06:12:14,911 INFO L271 PluginConnector]: Initializing CDTParser... [2018-01-25 06:12:14,911 INFO L276 PluginConnector]: CDTParser initialized [2018-01-25 06:12:14,912 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/heap-manipulation/bubble_sort_linux_true-unreach-call_true-valid-memsafety.i [2018-01-25 06:12:15,123 INFO L304 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-01-25 06:12:15,127 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-01-25 06:12:15,128 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-01-25 06:12:15,128 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-01-25 06:12:15,132 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-01-25 06:12:15,133 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.01 06:12:15" (1/1) ... [2018-01-25 06:12:15,137 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@54da1839 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.01 06:12:15, skipping insertion in model container [2018-01-25 06:12:15,137 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.01 06:12:15" (1/1) ... [2018-01-25 06:12:15,156 INFO L153 Dispatcher]: Using SV-COMP mode [2018-01-25 06:12:15,206 INFO L153 Dispatcher]: Using SV-COMP mode [2018-01-25 06:12:15,332 INFO L450 PostProcessor]: Settings: Checked method=main [2018-01-25 06:12:15,365 INFO L450 PostProcessor]: Settings: Checked method=main [2018-01-25 06:12:15,379 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.01 06:12:15 WrapperNode [2018-01-25 06:12:15,380 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-01-25 06:12:15,380 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-01-25 06:12:15,381 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-01-25 06:12:15,381 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-01-25 06:12:15,396 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.01 06:12:15" (1/1) ... [2018-01-25 06:12:15,396 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.01 06:12:15" (1/1) ... [2018-01-25 06:12:15,406 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.01 06:12:15" (1/1) ... [2018-01-25 06:12:15,406 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.01 06:12:15" (1/1) ... [2018-01-25 06:12:15,419 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.01 06:12:15" (1/1) ... [2018-01-25 06:12:15,428 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.01 06:12:15" (1/1) ... [2018-01-25 06:12:15,430 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.01 06:12:15" (1/1) ... [2018-01-25 06:12:15,434 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-01-25 06:12:15,434 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-01-25 06:12:15,434 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-01-25 06:12:15,434 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-01-25 06:12:15,435 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.01 06:12:15" (1/1) ... No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-01-25 06:12:15,475 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-01-25 06:12:15,475 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-01-25 06:12:15,475 INFO L136 BoogieDeclarations]: Found implementation of procedure fail [2018-01-25 06:12:15,475 INFO L136 BoogieDeclarations]: Found implementation of procedure inspect [2018-01-25 06:12:15,475 INFO L136 BoogieDeclarations]: Found implementation of procedure __list_add [2018-01-25 06:12:15,476 INFO L136 BoogieDeclarations]: Found implementation of procedure __list_del [2018-01-25 06:12:15,476 INFO L136 BoogieDeclarations]: Found implementation of procedure list_add [2018-01-25 06:12:15,476 INFO L136 BoogieDeclarations]: Found implementation of procedure list_move [2018-01-25 06:12:15,476 INFO L136 BoogieDeclarations]: Found implementation of procedure gl_insert [2018-01-25 06:12:15,476 INFO L136 BoogieDeclarations]: Found implementation of procedure gl_read [2018-01-25 06:12:15,476 INFO L136 BoogieDeclarations]: Found implementation of procedure gl_destroy [2018-01-25 06:12:15,477 INFO L136 BoogieDeclarations]: Found implementation of procedure val_from_node [2018-01-25 06:12:15,477 INFO L136 BoogieDeclarations]: Found implementation of procedure gl_sort_pass [2018-01-25 06:12:15,477 INFO L136 BoogieDeclarations]: Found implementation of procedure gl_sort [2018-01-25 06:12:15,477 INFO L136 BoogieDeclarations]: Found implementation of procedure main [2018-01-25 06:12:15,477 INFO L128 BoogieDeclarations]: Found specification of procedure write~int [2018-01-25 06:12:15,477 INFO L128 BoogieDeclarations]: Found specification of procedure read~int [2018-01-25 06:12:15,478 INFO L128 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2018-01-25 06:12:15,478 INFO L128 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2018-01-25 06:12:15,478 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.free [2018-01-25 06:12:15,478 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-01-25 06:12:15,478 INFO L128 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-01-25 06:12:15,478 INFO L128 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2018-01-25 06:12:15,479 INFO L128 BoogieDeclarations]: Found specification of procedure free [2018-01-25 06:12:15,479 INFO L128 BoogieDeclarations]: Found specification of procedure abort [2018-01-25 06:12:15,479 INFO L128 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2018-01-25 06:12:15,479 INFO L128 BoogieDeclarations]: Found specification of procedure fail [2018-01-25 06:12:15,479 INFO L128 BoogieDeclarations]: Found specification of procedure inspect [2018-01-25 06:12:15,479 INFO L128 BoogieDeclarations]: Found specification of procedure __list_add [2018-01-25 06:12:15,480 INFO L128 BoogieDeclarations]: Found specification of procedure __list_del [2018-01-25 06:12:15,480 INFO L128 BoogieDeclarations]: Found specification of procedure list_add [2018-01-25 06:12:15,480 INFO L128 BoogieDeclarations]: Found specification of procedure list_move [2018-01-25 06:12:15,480 INFO L128 BoogieDeclarations]: Found specification of procedure gl_insert [2018-01-25 06:12:15,480 INFO L128 BoogieDeclarations]: Found specification of procedure gl_read [2018-01-25 06:12:15,480 INFO L128 BoogieDeclarations]: Found specification of procedure gl_destroy [2018-01-25 06:12:15,480 INFO L128 BoogieDeclarations]: Found specification of procedure val_from_node [2018-01-25 06:12:15,481 INFO L128 BoogieDeclarations]: Found specification of procedure gl_sort_pass [2018-01-25 06:12:15,481 INFO L128 BoogieDeclarations]: Found specification of procedure gl_sort [2018-01-25 06:12:15,481 INFO L128 BoogieDeclarations]: Found specification of procedure main [2018-01-25 06:12:15,481 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-01-25 06:12:15,481 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-01-25 06:12:16,199 INFO L257 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-01-25 06:12:16,200 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.01 06:12:16 BoogieIcfgContainer [2018-01-25 06:12:16,221 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-01-25 06:12:16,222 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-01-25 06:12:16,222 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-01-25 06:12:16,223 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-01-25 06:12:16,224 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.01 06:12:15" (1/3) ... [2018-01-25 06:12:16,224 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@19763fea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.01 06:12:16, skipping insertion in model container [2018-01-25 06:12:16,225 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.01 06:12:15" (2/3) ... [2018-01-25 06:12:16,225 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@19763fea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.01 06:12:16, skipping insertion in model container [2018-01-25 06:12:16,225 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.01 06:12:16" (3/3) ... [2018-01-25 06:12:16,226 INFO L105 eAbstractionObserver]: Analyzing ICFG bubble_sort_linux_true-unreach-call_true-valid-memsafety.i [2018-01-25 06:12:16,233 INFO L130 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-01-25 06:12:16,239 INFO L142 ceAbstractionStarter]: Appying trace abstraction to program that has 73 error locations. [2018-01-25 06:12:16,304 INFO L322 AbstractCegarLoop]: Interprodecural is true [2018-01-25 06:12:16,304 INFO L323 AbstractCegarLoop]: Hoare is true [2018-01-25 06:12:16,304 INFO L324 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-01-25 06:12:16,305 INFO L325 AbstractCegarLoop]: Backedges is TWOTRACK [2018-01-25 06:12:16,305 INFO L326 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-01-25 06:12:16,305 INFO L327 AbstractCegarLoop]: Difference is false [2018-01-25 06:12:16,305 INFO L328 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-01-25 06:12:16,305 INFO L333 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-01-25 06:12:16,305 INFO L87 2NestedWordAutomaton]: Mode: main mode - execution starts in main procedure [2018-01-25 06:12:16,331 INFO L276 IsEmpty]: Start isEmpty. Operand 268 states. [2018-01-25 06:12:16,335 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2018-01-25 06:12:16,335 INFO L314 BasicCegarLoop]: Found error trace [2018-01-25 06:12:16,336 INFO L322 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2018-01-25 06:12:16,336 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]=== [2018-01-25 06:12:16,340 INFO L82 PathProgramCache]: Analyzing trace with hash 19743518, now seen corresponding path program 1 times [2018-01-25 06:12:16,342 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-25 06:12:16,381 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-25 06:12:16,381 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-25 06:12:16,381 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-25 06:12:16,382 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-25 06:12:16,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-25 06:12:16,427 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-25 06:12:16,469 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-25 06:12:16,556 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-25 06:12:16,556 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-01-25 06:12:16,556 INFO L252 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-01-25 06:12:16,560 INFO L409 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-01-25 06:12:16,575 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-01-25 06:12:16,576 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-01-25 06:12:16,578 INFO L87 Difference]: Start difference. First operand 268 states. Second operand 3 states. [2018-01-25 06:12:16,892 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-25 06:12:16,893 INFO L93 Difference]: Finished difference Result 520 states and 695 transitions. [2018-01-25 06:12:16,893 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-01-25 06:12:16,895 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 4 [2018-01-25 06:12:16,895 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-25 06:12:16,909 INFO L225 Difference]: With dead ends: 520 [2018-01-25 06:12:16,910 INFO L226 Difference]: Without dead ends: 244 [2018-01-25 06:12:16,917 INFO L525 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-01-25 06:12:16,938 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 244 states. [2018-01-25 06:12:16,970 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 244 to 243. [2018-01-25 06:12:16,971 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 243 states. [2018-01-25 06:12:16,974 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 243 states to 243 states and 252 transitions. [2018-01-25 06:12:16,975 INFO L78 Accepts]: Start accepts. Automaton has 243 states and 252 transitions. Word has length 4 [2018-01-25 06:12:16,976 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-25 06:12:16,976 INFO L432 AbstractCegarLoop]: Abstraction has 243 states and 252 transitions. [2018-01-25 06:12:16,976 INFO L433 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-01-25 06:12:16,976 INFO L276 IsEmpty]: Start isEmpty. Operand 243 states and 252 transitions. [2018-01-25 06:12:16,976 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2018-01-25 06:12:16,976 INFO L314 BasicCegarLoop]: Found error trace [2018-01-25 06:12:16,976 INFO L322 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2018-01-25 06:12:16,976 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]=== [2018-01-25 06:12:16,977 INFO L82 PathProgramCache]: Analyzing trace with hash 19743519, now seen corresponding path program 1 times [2018-01-25 06:12:16,977 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-25 06:12:16,977 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-25 06:12:16,978 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-25 06:12:16,978 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-25 06:12:16,978 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-25 06:12:16,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-25 06:12:16,999 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-25 06:12:17,065 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-25 06:12:17,066 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-25 06:12:17,066 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-01-25 06:12:17,066 INFO L252 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-01-25 06:12:17,068 INFO L409 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-01-25 06:12:17,068 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-01-25 06:12:17,068 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-01-25 06:12:17,068 INFO L87 Difference]: Start difference. First operand 243 states and 252 transitions. Second operand 3 states. [2018-01-25 06:12:17,226 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-25 06:12:17,226 INFO L93 Difference]: Finished difference Result 247 states and 257 transitions. [2018-01-25 06:12:17,227 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-01-25 06:12:17,227 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 4 [2018-01-25 06:12:17,227 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-25 06:12:17,233 INFO L225 Difference]: With dead ends: 247 [2018-01-25 06:12:17,234 INFO L226 Difference]: Without dead ends: 245 [2018-01-25 06:12:17,235 INFO L525 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-01-25 06:12:17,236 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 245 states. [2018-01-25 06:12:17,255 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 245 to 241. [2018-01-25 06:12:17,255 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 241 states. [2018-01-25 06:12:17,257 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 241 states to 241 states and 250 transitions. [2018-01-25 06:12:17,258 INFO L78 Accepts]: Start accepts. Automaton has 241 states and 250 transitions. Word has length 4 [2018-01-25 06:12:17,258 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-25 06:12:17,258 INFO L432 AbstractCegarLoop]: Abstraction has 241 states and 250 transitions. [2018-01-25 06:12:17,258 INFO L433 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-01-25 06:12:17,258 INFO L276 IsEmpty]: Start isEmpty. Operand 241 states and 250 transitions. [2018-01-25 06:12:17,259 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2018-01-25 06:12:17,259 INFO L314 BasicCegarLoop]: Found error trace [2018-01-25 06:12:17,259 INFO L322 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-25 06:12:17,260 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]=== [2018-01-25 06:12:17,260 INFO L82 PathProgramCache]: Analyzing trace with hash -935456334, now seen corresponding path program 1 times [2018-01-25 06:12:17,260 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-25 06:12:17,261 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-25 06:12:17,261 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-25 06:12:17,261 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-25 06:12:17,261 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-25 06:12:17,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-25 06:12:17,285 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-25 06:12:17,343 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-25 06:12:17,344 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-25 06:12:17,344 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-01-25 06:12:17,344 INFO L252 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-01-25 06:12:17,344 INFO L409 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-01-25 06:12:17,345 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-01-25 06:12:17,345 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-01-25 06:12:17,345 INFO L87 Difference]: Start difference. First operand 241 states and 250 transitions. Second operand 4 states. [2018-01-25 06:12:17,527 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-25 06:12:17,527 INFO L93 Difference]: Finished difference Result 241 states and 250 transitions. [2018-01-25 06:12:17,527 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-01-25 06:12:17,527 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 16 [2018-01-25 06:12:17,528 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-25 06:12:17,529 INFO L225 Difference]: With dead ends: 241 [2018-01-25 06:12:17,529 INFO L226 Difference]: Without dead ends: 238 [2018-01-25 06:12:17,530 INFO L525 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-01-25 06:12:17,530 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 238 states. [2018-01-25 06:12:17,545 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 238 to 238. [2018-01-25 06:12:17,545 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 238 states. [2018-01-25 06:12:17,546 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 238 states to 238 states and 247 transitions. [2018-01-25 06:12:17,547 INFO L78 Accepts]: Start accepts. Automaton has 238 states and 247 transitions. Word has length 16 [2018-01-25 06:12:17,547 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-25 06:12:17,547 INFO L432 AbstractCegarLoop]: Abstraction has 238 states and 247 transitions. [2018-01-25 06:12:17,547 INFO L433 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-01-25 06:12:17,548 INFO L276 IsEmpty]: Start isEmpty. Operand 238 states and 247 transitions. [2018-01-25 06:12:17,548 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2018-01-25 06:12:17,548 INFO L314 BasicCegarLoop]: Found error trace [2018-01-25 06:12:17,548 INFO L322 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-25 06:12:17,548 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]=== [2018-01-25 06:12:17,549 INFO L82 PathProgramCache]: Analyzing trace with hash -935456333, now seen corresponding path program 1 times [2018-01-25 06:12:17,549 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-25 06:12:17,550 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-25 06:12:17,550 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-25 06:12:17,550 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-25 06:12:17,550 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-25 06:12:17,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-25 06:12:17,569 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-25 06:12:17,636 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-25 06:12:17,636 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-25 06:12:17,636 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-01-25 06:12:17,637 INFO L252 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-01-25 06:12:17,637 INFO L409 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-01-25 06:12:17,637 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-01-25 06:12:17,637 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-01-25 06:12:17,638 INFO L87 Difference]: Start difference. First operand 238 states and 247 transitions. Second operand 4 states. [2018-01-25 06:12:17,824 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-25 06:12:17,824 INFO L93 Difference]: Finished difference Result 238 states and 247 transitions. [2018-01-25 06:12:17,824 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-01-25 06:12:17,824 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 16 [2018-01-25 06:12:17,825 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-25 06:12:17,827 INFO L225 Difference]: With dead ends: 238 [2018-01-25 06:12:17,827 INFO L226 Difference]: Without dead ends: 235 [2018-01-25 06:12:17,827 INFO L525 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-01-25 06:12:17,828 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 235 states. [2018-01-25 06:12:17,840 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 235 to 235. [2018-01-25 06:12:17,841 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 235 states. [2018-01-25 06:12:17,843 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 235 states to 235 states and 244 transitions. [2018-01-25 06:12:17,843 INFO L78 Accepts]: Start accepts. Automaton has 235 states and 244 transitions. Word has length 16 [2018-01-25 06:12:17,843 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-25 06:12:17,844 INFO L432 AbstractCegarLoop]: Abstraction has 235 states and 244 transitions. [2018-01-25 06:12:17,844 INFO L433 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-01-25 06:12:17,844 INFO L276 IsEmpty]: Start isEmpty. Operand 235 states and 244 transitions. [2018-01-25 06:12:17,844 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2018-01-25 06:12:17,845 INFO L314 BasicCegarLoop]: Found error trace [2018-01-25 06:12:17,845 INFO L322 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-25 06:12:17,845 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]=== [2018-01-25 06:12:17,845 INFO L82 PathProgramCache]: Analyzing trace with hash 1863730920, now seen corresponding path program 1 times [2018-01-25 06:12:17,845 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-25 06:12:17,846 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-25 06:12:17,847 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-25 06:12:17,847 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-25 06:12:17,847 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-25 06:12:17,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-25 06:12:17,874 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-25 06:12:17,974 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-25 06:12:17,975 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-25 06:12:17,975 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-01-25 06:12:17,975 INFO L252 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-01-25 06:12:17,975 INFO L409 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-01-25 06:12:17,976 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-01-25 06:12:17,976 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2018-01-25 06:12:17,976 INFO L87 Difference]: Start difference. First operand 235 states and 244 transitions. Second operand 7 states. [2018-01-25 06:12:18,268 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-25 06:12:18,268 INFO L93 Difference]: Finished difference Result 244 states and 252 transitions. [2018-01-25 06:12:18,268 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-01-25 06:12:18,268 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 19 [2018-01-25 06:12:18,269 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-25 06:12:18,270 INFO L225 Difference]: With dead ends: 244 [2018-01-25 06:12:18,271 INFO L226 Difference]: Without dead ends: 243 [2018-01-25 06:12:18,271 INFO L525 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2018-01-25 06:12:18,272 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 243 states. [2018-01-25 06:12:18,281 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 243 to 241. [2018-01-25 06:12:18,281 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 241 states. [2018-01-25 06:12:18,282 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 241 states to 241 states and 251 transitions. [2018-01-25 06:12:18,283 INFO L78 Accepts]: Start accepts. Automaton has 241 states and 251 transitions. Word has length 19 [2018-01-25 06:12:18,283 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-25 06:12:18,283 INFO L432 AbstractCegarLoop]: Abstraction has 241 states and 251 transitions. [2018-01-25 06:12:18,283 INFO L433 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-01-25 06:12:18,283 INFO L276 IsEmpty]: Start isEmpty. Operand 241 states and 251 transitions. [2018-01-25 06:12:18,283 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2018-01-25 06:12:18,283 INFO L314 BasicCegarLoop]: Found error trace [2018-01-25 06:12:18,284 INFO L322 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-25 06:12:18,284 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]=== [2018-01-25 06:12:18,284 INFO L82 PathProgramCache]: Analyzing trace with hash 1863730921, now seen corresponding path program 1 times [2018-01-25 06:12:18,284 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-25 06:12:18,285 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-25 06:12:18,285 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-25 06:12:18,285 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-25 06:12:18,285 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-25 06:12:18,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-25 06:12:18,306 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-25 06:12:18,460 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-25 06:12:18,461 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-25 06:12:18,461 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2018-01-25 06:12:18,461 INFO L252 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-01-25 06:12:18,461 INFO L409 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-01-25 06:12:18,461 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-01-25 06:12:18,462 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2018-01-25 06:12:18,462 INFO L87 Difference]: Start difference. First operand 241 states and 251 transitions. Second operand 9 states. [2018-01-25 06:12:18,971 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-25 06:12:18,971 INFO L93 Difference]: Finished difference Result 242 states and 251 transitions. [2018-01-25 06:12:18,971 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-01-25 06:12:18,972 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 19 [2018-01-25 06:12:18,972 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-25 06:12:18,973 INFO L225 Difference]: With dead ends: 242 [2018-01-25 06:12:18,974 INFO L226 Difference]: Without dead ends: 238 [2018-01-25 06:12:18,974 INFO L525 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=44, Invalid=88, Unknown=0, NotChecked=0, Total=132 [2018-01-25 06:12:18,975 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 238 states. [2018-01-25 06:12:18,987 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 238 to 238. [2018-01-25 06:12:18,987 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 238 states. [2018-01-25 06:12:18,990 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 238 states to 238 states and 246 transitions. [2018-01-25 06:12:18,990 INFO L78 Accepts]: Start accepts. Automaton has 238 states and 246 transitions. Word has length 19 [2018-01-25 06:12:18,990 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-25 06:12:18,990 INFO L432 AbstractCegarLoop]: Abstraction has 238 states and 246 transitions. [2018-01-25 06:12:18,991 INFO L433 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-01-25 06:12:18,991 INFO L276 IsEmpty]: Start isEmpty. Operand 238 states and 246 transitions. [2018-01-25 06:12:18,991 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2018-01-25 06:12:18,991 INFO L314 BasicCegarLoop]: Found error trace [2018-01-25 06:12:18,992 INFO L322 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-25 06:12:18,992 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]=== [2018-01-25 06:12:18,992 INFO L82 PathProgramCache]: Analyzing trace with hash 1366173164, now seen corresponding path program 1 times [2018-01-25 06:12:18,992 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-25 06:12:18,993 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-25 06:12:18,993 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-25 06:12:18,993 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-25 06:12:18,994 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-25 06:12:19,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-25 06:12:19,014 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-25 06:12:19,129 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-25 06:12:19,129 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-25 06:12:19,129 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2018-01-25 06:12:19,129 INFO L252 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-01-25 06:12:19,129 INFO L409 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-01-25 06:12:19,129 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-01-25 06:12:19,130 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2018-01-25 06:12:19,130 INFO L87 Difference]: Start difference. First operand 238 states and 246 transitions. Second operand 10 states. [2018-01-25 06:12:19,583 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-25 06:12:19,583 INFO L93 Difference]: Finished difference Result 265 states and 275 transitions. [2018-01-25 06:12:19,583 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2018-01-25 06:12:19,584 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 22 [2018-01-25 06:12:19,584 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-25 06:12:19,586 INFO L225 Difference]: With dead ends: 265 [2018-01-25 06:12:19,586 INFO L226 Difference]: Without dead ends: 264 [2018-01-25 06:12:19,586 INFO L525 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 2 SyntacticMatches, 4 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=60, Invalid=246, Unknown=0, NotChecked=0, Total=306 [2018-01-25 06:12:19,590 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 264 states. [2018-01-25 06:12:19,605 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 264 to 256. [2018-01-25 06:12:19,606 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 256 states. [2018-01-25 06:12:19,608 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 256 states to 256 states and 273 transitions. [2018-01-25 06:12:19,608 INFO L78 Accepts]: Start accepts. Automaton has 256 states and 273 transitions. Word has length 22 [2018-01-25 06:12:19,609 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-25 06:12:19,609 INFO L432 AbstractCegarLoop]: Abstraction has 256 states and 273 transitions. [2018-01-25 06:12:19,609 INFO L433 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-01-25 06:12:19,609 INFO L276 IsEmpty]: Start isEmpty. Operand 256 states and 273 transitions. [2018-01-25 06:12:19,609 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2018-01-25 06:12:19,610 INFO L314 BasicCegarLoop]: Found error trace [2018-01-25 06:12:19,610 INFO L322 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-25 06:12:19,610 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]=== [2018-01-25 06:12:19,610 INFO L82 PathProgramCache]: Analyzing trace with hash 1366173165, now seen corresponding path program 1 times [2018-01-25 06:12:19,610 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-25 06:12:19,611 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-25 06:12:19,611 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-25 06:12:19,612 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-25 06:12:19,612 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-25 06:12:19,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-25 06:12:19,630 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-25 06:12:19,931 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-25 06:12:19,932 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-25 06:12:19,932 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2018-01-25 06:12:19,932 INFO L252 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-01-25 06:12:19,932 INFO L409 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-01-25 06:12:19,933 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-01-25 06:12:19,933 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2018-01-25 06:12:19,933 INFO L87 Difference]: Start difference. First operand 256 states and 273 transitions. Second operand 11 states. [2018-01-25 06:12:20,888 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-25 06:12:20,888 INFO L93 Difference]: Finished difference Result 485 states and 501 transitions. [2018-01-25 06:12:20,889 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2018-01-25 06:12:20,889 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 22 [2018-01-25 06:12:20,889 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-25 06:12:20,892 INFO L225 Difference]: With dead ends: 485 [2018-01-25 06:12:20,892 INFO L226 Difference]: Without dead ends: 484 [2018-01-25 06:12:20,892 INFO L525 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 2 SyntacticMatches, 4 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=86, Invalid=334, Unknown=0, NotChecked=0, Total=420 [2018-01-25 06:12:20,893 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 484 states. [2018-01-25 06:12:20,919 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 484 to 400. [2018-01-25 06:12:20,919 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 400 states. [2018-01-25 06:12:20,923 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 400 states to 400 states and 473 transitions. [2018-01-25 06:12:20,923 INFO L78 Accepts]: Start accepts. Automaton has 400 states and 473 transitions. Word has length 22 [2018-01-25 06:12:20,923 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-25 06:12:20,923 INFO L432 AbstractCegarLoop]: Abstraction has 400 states and 473 transitions. [2018-01-25 06:12:20,924 INFO L433 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-01-25 06:12:20,924 INFO L276 IsEmpty]: Start isEmpty. Operand 400 states and 473 transitions. [2018-01-25 06:12:20,924 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2018-01-25 06:12:20,924 INFO L314 BasicCegarLoop]: Found error trace [2018-01-25 06:12:20,925 INFO L322 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-25 06:12:20,925 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]=== [2018-01-25 06:12:20,925 INFO L82 PathProgramCache]: Analyzing trace with hash -598304902, now seen corresponding path program 1 times [2018-01-25 06:12:20,925 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-25 06:12:20,926 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-25 06:12:20,926 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-25 06:12:20,927 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-25 06:12:20,927 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-25 06:12:20,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-25 06:12:20,942 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-25 06:12:21,004 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-25 06:12:21,005 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-25 06:12:21,005 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-01-25 06:12:21,005 INFO L252 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-01-25 06:12:21,005 INFO L409 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-01-25 06:12:21,005 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-01-25 06:12:21,006 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-01-25 06:12:21,006 INFO L87 Difference]: Start difference. First operand 400 states and 473 transitions. Second operand 7 states. [2018-01-25 06:12:21,466 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-25 06:12:21,466 INFO L93 Difference]: Finished difference Result 414 states and 487 transitions. [2018-01-25 06:12:21,466 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-01-25 06:12:21,466 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 23 [2018-01-25 06:12:21,467 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-25 06:12:21,469 INFO L225 Difference]: With dead ends: 414 [2018-01-25 06:12:21,470 INFO L226 Difference]: Without dead ends: 412 [2018-01-25 06:12:21,470 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 [2018-01-25 06:12:21,471 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 412 states. [2018-01-25 06:12:21,486 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 412 to 271. [2018-01-25 06:12:21,486 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 271 states. [2018-01-25 06:12:21,488 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 271 states to 271 states and 288 transitions. [2018-01-25 06:12:21,489 INFO L78 Accepts]: Start accepts. Automaton has 271 states and 288 transitions. Word has length 23 [2018-01-25 06:12:21,489 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-25 06:12:21,489 INFO L432 AbstractCegarLoop]: Abstraction has 271 states and 288 transitions. [2018-01-25 06:12:21,489 INFO L433 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-01-25 06:12:21,489 INFO L276 IsEmpty]: Start isEmpty. Operand 271 states and 288 transitions. [2018-01-25 06:12:21,490 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2018-01-25 06:12:21,490 INFO L314 BasicCegarLoop]: Found error trace [2018-01-25 06:12:21,490 INFO L322 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-25 06:12:21,490 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]=== [2018-01-25 06:12:21,490 INFO L82 PathProgramCache]: Analyzing trace with hash -598304901, now seen corresponding path program 1 times [2018-01-25 06:12:21,490 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-25 06:12:21,491 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-25 06:12:21,491 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-25 06:12:21,491 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-25 06:12:21,491 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-25 06:12:21,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-25 06:12:21,507 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-25 06:12:21,650 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-25 06:12:21,651 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-25 06:12:21,651 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-01-25 06:12:21,651 INFO L252 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-01-25 06:12:21,651 INFO L409 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-01-25 06:12:21,651 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-01-25 06:12:21,652 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2018-01-25 06:12:21,652 INFO L87 Difference]: Start difference. First operand 271 states and 288 transitions. Second operand 8 states. [2018-01-25 06:12:21,978 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-25 06:12:21,978 INFO L93 Difference]: Finished difference Result 277 states and 288 transitions. [2018-01-25 06:12:21,979 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-01-25 06:12:21,979 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 23 [2018-01-25 06:12:21,979 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-25 06:12:21,980 INFO L225 Difference]: With dead ends: 277 [2018-01-25 06:12:21,980 INFO L226 Difference]: Without dead ends: 275 [2018-01-25 06:12:21,981 INFO L525 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2018-01-25 06:12:21,981 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 275 states. [2018-01-25 06:12:21,991 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 275 to 271. [2018-01-25 06:12:21,991 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 271 states. [2018-01-25 06:12:21,992 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 271 states to 271 states and 284 transitions. [2018-01-25 06:12:21,993 INFO L78 Accepts]: Start accepts. Automaton has 271 states and 284 transitions. Word has length 23 [2018-01-25 06:12:21,993 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-25 06:12:21,993 INFO L432 AbstractCegarLoop]: Abstraction has 271 states and 284 transitions. [2018-01-25 06:12:21,993 INFO L433 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-01-25 06:12:21,993 INFO L276 IsEmpty]: Start isEmpty. Operand 271 states and 284 transitions. [2018-01-25 06:12:21,993 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2018-01-25 06:12:21,993 INFO L314 BasicCegarLoop]: Found error trace [2018-01-25 06:12:21,994 INFO L322 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-25 06:12:21,994 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]=== [2018-01-25 06:12:21,994 INFO L82 PathProgramCache]: Analyzing trace with hash 554606109, now seen corresponding path program 1 times [2018-01-25 06:12:21,994 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-25 06:12:21,994 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-25 06:12:21,994 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-25 06:12:21,995 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-25 06:12:21,995 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-25 06:12:22,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-25 06:12:22,006 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-25 06:12:22,062 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-25 06:12:22,063 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-25 06:12:22,063 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-01-25 06:12:22,063 INFO L252 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-01-25 06:12:22,063 INFO L409 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-01-25 06:12:22,063 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-01-25 06:12:22,063 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-01-25 06:12:22,063 INFO L87 Difference]: Start difference. First operand 271 states and 284 transitions. Second operand 5 states. [2018-01-25 06:12:22,298 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-25 06:12:22,299 INFO L93 Difference]: Finished difference Result 271 states and 284 transitions. [2018-01-25 06:12:22,299 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-01-25 06:12:22,299 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 25 [2018-01-25 06:12:22,299 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-25 06:12:22,312 INFO L225 Difference]: With dead ends: 271 [2018-01-25 06:12:22,313 INFO L226 Difference]: Without dead ends: 270 [2018-01-25 06:12:22,313 INFO L525 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-01-25 06:12:22,313 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 270 states. [2018-01-25 06:12:22,328 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 270 to 270. [2018-01-25 06:12:22,328 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 270 states. [2018-01-25 06:12:22,330 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 270 states to 270 states and 281 transitions. [2018-01-25 06:12:22,330 INFO L78 Accepts]: Start accepts. Automaton has 270 states and 281 transitions. Word has length 25 [2018-01-25 06:12:22,331 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-25 06:12:22,331 INFO L432 AbstractCegarLoop]: Abstraction has 270 states and 281 transitions. [2018-01-25 06:12:22,331 INFO L433 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-01-25 06:12:22,331 INFO L276 IsEmpty]: Start isEmpty. Operand 270 states and 281 transitions. [2018-01-25 06:12:22,332 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2018-01-25 06:12:22,332 INFO L314 BasicCegarLoop]: Found error trace [2018-01-25 06:12:22,332 INFO L322 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-25 06:12:22,332 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]=== [2018-01-25 06:12:22,332 INFO L82 PathProgramCache]: Analyzing trace with hash 554606110, now seen corresponding path program 1 times [2018-01-25 06:12:22,332 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-25 06:12:22,333 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-25 06:12:22,333 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-25 06:12:22,333 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-25 06:12:22,334 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-25 06:12:22,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-25 06:12:22,350 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-25 06:12:22,448 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-25 06:12:22,449 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-25 06:12:22,449 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-01-25 06:12:22,449 INFO L252 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-01-25 06:12:22,449 INFO L409 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-01-25 06:12:22,450 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-01-25 06:12:22,450 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2018-01-25 06:12:22,450 INFO L87 Difference]: Start difference. First operand 270 states and 281 transitions. Second operand 8 states. [2018-01-25 06:12:22,665 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-25 06:12:22,665 INFO L93 Difference]: Finished difference Result 273 states and 281 transitions. [2018-01-25 06:12:22,665 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-01-25 06:12:22,665 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 25 [2018-01-25 06:12:22,665 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-25 06:12:22,666 INFO L225 Difference]: With dead ends: 273 [2018-01-25 06:12:22,667 INFO L226 Difference]: Without dead ends: 272 [2018-01-25 06:12:22,667 INFO L525 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=42, Invalid=114, Unknown=0, NotChecked=0, Total=156 [2018-01-25 06:12:22,667 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 272 states. [2018-01-25 06:12:22,678 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 272 to 270. [2018-01-25 06:12:22,678 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 270 states. [2018-01-25 06:12:22,679 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 270 states to 270 states and 279 transitions. [2018-01-25 06:12:22,680 INFO L78 Accepts]: Start accepts. Automaton has 270 states and 279 transitions. Word has length 25 [2018-01-25 06:12:22,680 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-25 06:12:22,680 INFO L432 AbstractCegarLoop]: Abstraction has 270 states and 279 transitions. [2018-01-25 06:12:22,680 INFO L433 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-01-25 06:12:22,680 INFO L276 IsEmpty]: Start isEmpty. Operand 270 states and 279 transitions. [2018-01-25 06:12:22,681 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2018-01-25 06:12:22,681 INFO L314 BasicCegarLoop]: Found error trace [2018-01-25 06:12:22,681 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] [2018-01-25 06:12:22,682 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]=== [2018-01-25 06:12:22,682 INFO L82 PathProgramCache]: Analyzing trace with hash 1199658537, now seen corresponding path program 1 times [2018-01-25 06:12:22,682 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-25 06:12:22,683 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-25 06:12:22,683 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-25 06:12:22,683 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-25 06:12:22,683 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-25 06:12:22,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-25 06:12:22,700 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-25 06:12:23,137 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-25 06:12:23,138 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-25 06:12:23,138 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2018-01-25 06:12:23,138 INFO L252 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-01-25 06:12:23,138 INFO L409 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-01-25 06:12:23,139 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-01-25 06:12:23,139 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2018-01-25 06:12:23,139 INFO L87 Difference]: Start difference. First operand 270 states and 279 transitions. Second operand 11 states. [2018-01-25 06:12:23,570 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-25 06:12:23,570 INFO L93 Difference]: Finished difference Result 270 states and 279 transitions. [2018-01-25 06:12:23,571 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-01-25 06:12:23,571 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 48 [2018-01-25 06:12:23,571 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-25 06:12:23,572 INFO L225 Difference]: With dead ends: 270 [2018-01-25 06:12:23,572 INFO L226 Difference]: Without dead ends: 269 [2018-01-25 06:12:23,573 INFO L525 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=70, Invalid=236, Unknown=0, NotChecked=0, Total=306 [2018-01-25 06:12:23,573 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 269 states. [2018-01-25 06:12:23,592 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 269 to 269. [2018-01-25 06:12:23,592 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 269 states. [2018-01-25 06:12:23,594 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 269 states to 269 states and 278 transitions. [2018-01-25 06:12:23,594 INFO L78 Accepts]: Start accepts. Automaton has 269 states and 278 transitions. Word has length 48 [2018-01-25 06:12:23,595 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-25 06:12:23,595 INFO L432 AbstractCegarLoop]: Abstraction has 269 states and 278 transitions. [2018-01-25 06:12:23,595 INFO L433 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-01-25 06:12:23,595 INFO L276 IsEmpty]: Start isEmpty. Operand 269 states and 278 transitions. [2018-01-25 06:12:23,596 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2018-01-25 06:12:23,597 INFO L314 BasicCegarLoop]: Found error trace [2018-01-25 06:12:23,597 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] [2018-01-25 06:12:23,597 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]=== [2018-01-25 06:12:23,597 INFO L82 PathProgramCache]: Analyzing trace with hash 1199658536, now seen corresponding path program 1 times [2018-01-25 06:12:23,597 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-25 06:12:23,598 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-25 06:12:23,598 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-25 06:12:23,599 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-25 06:12:23,599 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-25 06:12:23,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-25 06:12:23,617 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-25 06:12:23,698 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-25 06:12:23,698 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-25 06:12:23,698 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-01-25 06:12:23,699 INFO L252 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-01-25 06:12:23,699 INFO L409 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-01-25 06:12:23,699 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-01-25 06:12:23,699 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-01-25 06:12:23,700 INFO L87 Difference]: Start difference. First operand 269 states and 278 transitions. Second operand 7 states. [2018-01-25 06:12:24,273 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-25 06:12:24,273 INFO L93 Difference]: Finished difference Result 269 states and 278 transitions. [2018-01-25 06:12:24,274 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-01-25 06:12:24,274 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 48 [2018-01-25 06:12:24,274 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-25 06:12:24,276 INFO L225 Difference]: With dead ends: 269 [2018-01-25 06:12:24,276 INFO L226 Difference]: Without dead ends: 264 [2018-01-25 06:12:24,277 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 [2018-01-25 06:12:24,277 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 264 states. [2018-01-25 06:12:24,294 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 264 to 264. [2018-01-25 06:12:24,294 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 264 states. [2018-01-25 06:12:24,296 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 264 states to 264 states and 273 transitions. [2018-01-25 06:12:24,296 INFO L78 Accepts]: Start accepts. Automaton has 264 states and 273 transitions. Word has length 48 [2018-01-25 06:12:24,297 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-25 06:12:24,297 INFO L432 AbstractCegarLoop]: Abstraction has 264 states and 273 transitions. [2018-01-25 06:12:24,297 INFO L433 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-01-25 06:12:24,297 INFO L276 IsEmpty]: Start isEmpty. Operand 264 states and 273 transitions. [2018-01-25 06:12:24,298 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2018-01-25 06:12:24,298 INFO L314 BasicCegarLoop]: Found error trace [2018-01-25 06:12:24,298 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] [2018-01-25 06:12:24,298 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]=== [2018-01-25 06:12:24,299 INFO L82 PathProgramCache]: Analyzing trace with hash 652522709, now seen corresponding path program 1 times [2018-01-25 06:12:24,299 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-25 06:12:24,299 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-25 06:12:24,300 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-25 06:12:24,300 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-25 06:12:24,300 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-25 06:12:24,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-25 06:12:24,337 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-25 06:12:24,688 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 4 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-25 06:12:24,688 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-01-25 06:12:24,688 INFO L187 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-01-25 06:12:24,689 INFO L199 CegarAbsIntRunner]: Running AI on error trace of length 53 with the following transitions: [2018-01-25 06:12:24,690 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] [2018-01-25 06:12:24,736 INFO L147 AbstractInterpreter]: Using domain VPDomain [2018-01-25 06:12:24,736 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