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_Camel+AI_EQ.epf -i ../../../trunk/examples/svcomp/memsafety/test-0137_false-valid-deref.i -------------------------------------------------------------------------------- This is Ultimate 0.1.23-6b94a2f [2018-01-24 11:52:02,710 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-01-24 11:52:02,713 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-01-24 11:52:02,731 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-01-24 11:52:02,732 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-01-24 11:52:02,734 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-01-24 11:52:02,735 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-01-24 11:52:02,737 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-01-24 11:52:02,740 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-01-24 11:52:02,741 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-01-24 11:52:02,742 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-01-24 11:52:02,742 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-01-24 11:52:02,744 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-01-24 11:52:02,745 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-01-24 11:52:02,746 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-01-24 11:52:02,749 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-01-24 11:52:02,752 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-01-24 11:52:02,755 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-01-24 11:52:02,756 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-01-24 11:52:02,758 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-01-24 11:52:02,760 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-01-24 11:52:02,761 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-01-24 11:52:02,761 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-01-24 11:52:02,762 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-01-24 11:52:02,763 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-01-24 11:52:02,765 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-01-24 11:52:02,765 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-01-24 11:52:02,766 INFO L177 SettingsManager]: PEA to Boogie provides no preferences, ignoring... [2018-01-24 11:52:02,766 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-01-24 11:52:02,767 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-01-24 11:52:02,767 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-01-24 11:52:02,768 INFO L98 SettingsManager]: Beginning loading settings from /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/ai/eq-bench/svcomp-DerefFreeMemtrack-32bit-Automizer_Camel+AI_EQ.epf [2018-01-24 11:52:02,779 INFO L110 SettingsManager]: Loading preferences was successful [2018-01-24 11:52:02,780 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-01-24 11:52:02,781 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-01-24 11:52:02,781 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-01-24 11:52:02,781 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-01-24 11:52:02,781 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=VPDomain [2018-01-24 11:52:02,781 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-01-24 11:52:02,782 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-01-24 11:52:02,782 INFO L133 SettingsManager]: * sizeof long=4 [2018-01-24 11:52:02,783 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-01-24 11:52:02,783 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-01-24 11:52:02,783 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-01-24 11:52:02,783 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-01-24 11:52:02,783 INFO L133 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2018-01-24 11:52:02,784 INFO L133 SettingsManager]: * Bitprecise bitfields=true [2018-01-24 11:52:02,784 INFO L133 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2018-01-24 11:52:02,784 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-01-24 11:52:02,784 INFO L133 SettingsManager]: * sizeof long double=12 [2018-01-24 11:52:02,784 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-01-24 11:52:02,785 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-01-24 11:52:02,785 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-01-24 11:52:02,785 INFO L133 SettingsManager]: * Add additional assume for each assert=false [2018-01-24 11:52:02,785 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-01-24 11:52:02,785 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-01-24 11:52:02,786 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-01-24 11:52:02,786 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-01-24 11:52:02,786 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-01-24 11:52:02,786 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-01-24 11:52:02,786 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-01-24 11:52:02,787 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-01-24 11:52:02,787 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-01-24 11:52:02,787 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-01-24 11:52:02,788 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-01-24 11:52:02,788 INFO L133 SettingsManager]: * TransformationType=HEAP_SEPARATOR [2018-01-24 11:52:02,833 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-01-24 11:52:02,851 INFO L266 ainManager$Toolchain]: [Toolchain 1]: Parser(s) successfully initialized [2018-01-24 11:52:02,858 INFO L222 ainManager$Toolchain]: [Toolchain 1]: Toolchain data selected. [2018-01-24 11:52:02,860 INFO L271 PluginConnector]: Initializing CDTParser... [2018-01-24 11:52:02,861 INFO L276 PluginConnector]: CDTParser initialized [2018-01-24 11:52:02,862 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/memsafety/test-0137_false-valid-deref.i [2018-01-24 11:52:03,160 INFO L304 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-01-24 11:52:03,170 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-01-24 11:52:03,171 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-01-24 11:52:03,171 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-01-24 11:52:03,178 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-01-24 11:52:03,179 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.01 11:52:03" (1/1) ... [2018-01-24 11:52:03,183 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5eed3178 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 11:52:03, skipping insertion in model container [2018-01-24 11:52:03,183 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.01 11:52:03" (1/1) ... [2018-01-24 11:52:03,199 INFO L153 Dispatcher]: Using SV-COMP mode [2018-01-24 11:52:03,242 INFO L153 Dispatcher]: Using SV-COMP mode [2018-01-24 11:52:03,394 INFO L450 PostProcessor]: Settings: Checked method=main [2018-01-24 11:52:03,421 INFO L450 PostProcessor]: Settings: Checked method=main [2018-01-24 11:52:03,439 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 11:52:03 WrapperNode [2018-01-24 11:52:03,439 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-01-24 11:52:03,440 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-01-24 11:52:03,440 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-01-24 11:52:03,440 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-01-24 11:52:03,455 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 11:52:03" (1/1) ... [2018-01-24 11:52:03,455 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 11:52:03" (1/1) ... [2018-01-24 11:52:03,467 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 11:52:03" (1/1) ... [2018-01-24 11:52:03,467 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 11:52:03" (1/1) ... [2018-01-24 11:52:03,476 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 11:52:03" (1/1) ... [2018-01-24 11:52:03,480 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 11:52:03" (1/1) ... [2018-01-24 11:52:03,483 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 11:52:03" (1/1) ... [2018-01-24 11:52:03,486 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-01-24 11:52:03,487 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-01-24 11:52:03,487 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-01-24 11:52:03,487 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-01-24 11:52:03,488 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 11:52:03" (1/1) ... No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-01-24 11:52:03,552 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-01-24 11:52:03,552 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-01-24 11:52:03,552 INFO L136 BoogieDeclarations]: Found implementation of procedure list_empty [2018-01-24 11:52:03,553 INFO L136 BoogieDeclarations]: Found implementation of procedure __list_add [2018-01-24 11:52:03,553 INFO L136 BoogieDeclarations]: Found implementation of procedure __list_del [2018-01-24 11:52:03,553 INFO L136 BoogieDeclarations]: Found implementation of procedure list_add [2018-01-24 11:52:03,553 INFO L136 BoogieDeclarations]: Found implementation of procedure list_move [2018-01-24 11:52:03,553 INFO L136 BoogieDeclarations]: Found implementation of procedure gl_insert [2018-01-24 11:52:03,553 INFO L136 BoogieDeclarations]: Found implementation of procedure gl_read [2018-01-24 11:52:03,553 INFO L136 BoogieDeclarations]: Found implementation of procedure gl_destroy [2018-01-24 11:52:03,553 INFO L136 BoogieDeclarations]: Found implementation of procedure val_from_node [2018-01-24 11:52:03,554 INFO L136 BoogieDeclarations]: Found implementation of procedure gl_seek_max [2018-01-24 11:52:03,554 INFO L136 BoogieDeclarations]: Found implementation of procedure gl_sort [2018-01-24 11:52:03,554 INFO L136 BoogieDeclarations]: Found implementation of procedure main [2018-01-24 11:52:03,554 INFO L128 BoogieDeclarations]: Found specification of procedure write~int [2018-01-24 11:52:03,554 INFO L128 BoogieDeclarations]: Found specification of procedure read~int [2018-01-24 11:52:03,554 INFO L128 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2018-01-24 11:52:03,555 INFO L128 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2018-01-24 11:52:03,555 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.free [2018-01-24 11:52:03,555 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-01-24 11:52:03,555 INFO L128 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-01-24 11:52:03,555 INFO L128 BoogieDeclarations]: Found specification of procedure free [2018-01-24 11:52:03,555 INFO L128 BoogieDeclarations]: Found specification of procedure abort [2018-01-24 11:52:03,556 INFO L128 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2018-01-24 11:52:03,556 INFO L128 BoogieDeclarations]: Found specification of procedure list_empty [2018-01-24 11:52:03,556 INFO L128 BoogieDeclarations]: Found specification of procedure __list_add [2018-01-24 11:52:03,556 INFO L128 BoogieDeclarations]: Found specification of procedure __list_del [2018-01-24 11:52:03,556 INFO L128 BoogieDeclarations]: Found specification of procedure list_add [2018-01-24 11:52:03,557 INFO L128 BoogieDeclarations]: Found specification of procedure list_move [2018-01-24 11:52:03,557 INFO L128 BoogieDeclarations]: Found specification of procedure gl_insert [2018-01-24 11:52:03,557 INFO L128 BoogieDeclarations]: Found specification of procedure gl_read [2018-01-24 11:52:03,557 INFO L128 BoogieDeclarations]: Found specification of procedure gl_destroy [2018-01-24 11:52:03,557 INFO L128 BoogieDeclarations]: Found specification of procedure val_from_node [2018-01-24 11:52:03,557 INFO L128 BoogieDeclarations]: Found specification of procedure gl_seek_max [2018-01-24 11:52:03,557 INFO L128 BoogieDeclarations]: Found specification of procedure gl_sort [2018-01-24 11:52:03,557 INFO L128 BoogieDeclarations]: Found specification of procedure main [2018-01-24 11:52:03,558 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-01-24 11:52:03,558 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-01-24 11:52:04,223 INFO L257 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-01-24 11:52:04,224 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.01 11:52:04 BoogieIcfgContainer [2018-01-24 11:52:04,224 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-01-24 11:52:04,225 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-01-24 11:52:04,225 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-01-24 11:52:04,227 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-01-24 11:52:04,227 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.01 11:52:03" (1/3) ... [2018-01-24 11:52:04,228 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@70c94f08 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.01 11:52:04, skipping insertion in model container [2018-01-24 11:52:04,229 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 11:52:03" (2/3) ... [2018-01-24 11:52:04,229 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@70c94f08 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.01 11:52:04, skipping insertion in model container [2018-01-24 11:52:04,229 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.01 11:52:04" (3/3) ... [2018-01-24 11:52:04,231 INFO L105 eAbstractionObserver]: Analyzing ICFG test-0137_false-valid-deref.i [2018-01-24 11:52:04,238 INFO L130 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-01-24 11:52:04,246 INFO L142 ceAbstractionStarter]: Appying trace abstraction to program that has 63 error locations. [2018-01-24 11:52:04,309 INFO L322 AbstractCegarLoop]: Interprodecural is true [2018-01-24 11:52:04,309 INFO L323 AbstractCegarLoop]: Hoare is true [2018-01-24 11:52:04,309 INFO L324 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-01-24 11:52:04,309 INFO L325 AbstractCegarLoop]: Backedges is TWOTRACK [2018-01-24 11:52:04,309 INFO L326 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-01-24 11:52:04,310 INFO L327 AbstractCegarLoop]: Difference is false [2018-01-24 11:52:04,310 INFO L328 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-01-24 11:52:04,310 INFO L333 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-01-24 11:52:04,311 INFO L87 2NestedWordAutomaton]: Mode: main mode - execution starts in main procedure [2018-01-24 11:52:04,348 INFO L276 IsEmpty]: Start isEmpty. Operand 188 states. [2018-01-24 11:52:04,368 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2018-01-24 11:52:04,369 INFO L314 BasicCegarLoop]: Found error trace [2018-01-24 11:52:04,370 INFO L322 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2018-01-24 11:52:04,370 INFO L371 AbstractCegarLoop]: === Iteration 1 === [__list_addErr1RequiresViolation, __list_addErr3RequiresViolation, __list_addErr0RequiresViolation, __list_addErr2RequiresViolation, __list_addErr4RequiresViolation, __list_addErr7RequiresViolation, __list_addErr5RequiresViolation, __list_addErr6RequiresViolation, ULTIMATE.initErr3RequiresViolation, ULTIMATE.initErr1RequiresViolation, ULTIMATE.initErr2RequiresViolation, ULTIMATE.initErr0RequiresViolation, val_from_nodeErr0RequiresViolation, val_from_nodeErr1RequiresViolation, list_moveErr0RequiresViolation, list_moveErr3RequiresViolation, list_moveErr2RequiresViolation, list_moveErr1RequiresViolation, gl_sortErr16RequiresViolation, gl_sortErr4RequiresViolation, gl_sortErr12RequiresViolation, gl_sortErr5RequiresViolation, gl_sortErr0RequiresViolation, gl_sortErr11RequiresViolation, gl_sortErr9RequiresViolation, gl_sortErr2RequiresViolation, gl_sortErr18RequiresViolation, gl_sortErr7RequiresViolation, gl_sortErr13RequiresViolation, gl_sortErr14RequiresViolation, gl_sortErr19RequiresViolation, gl_sortErr6RequiresViolation, gl_sortErr1RequiresViolation, gl_sortErr17RequiresViolation, gl_sortErr15RequiresViolation, gl_sortErr10RequiresViolation, gl_sortErr8RequiresViolation, gl_sortErr3RequiresViolation, list_addErr1RequiresViolation, list_addErr0RequiresViolation, list_emptyErr0RequiresViolation, list_emptyErr1RequiresViolation, __list_delErr0RequiresViolation, __list_delErr2RequiresViolation, __list_delErr3RequiresViolation, __list_delErr1RequiresViolation, mainErr0EnsuresViolation, gl_insertErr0RequiresViolation, gl_insertErr1RequiresViolation, gl_seek_maxErr0RequiresViolation, gl_seek_maxErr2RequiresViolation, gl_seek_maxErr1RequiresViolation, gl_seek_maxErr5RequiresViolation, gl_seek_maxErr3RequiresViolation, gl_seek_maxErr4RequiresViolation, gl_destroyErr4RequiresViolation, gl_destroyErr2RequiresViolation, gl_destroyErr0RequiresViolation, gl_destroyErr1RequiresViolation, gl_destroyErr6RequiresViolation, gl_destroyErr7RequiresViolation, gl_destroyErr3RequiresViolation, gl_destroyErr5RequiresViolation]=== [2018-01-24 11:52:04,383 INFO L82 PathProgramCache]: Analyzing trace with hash 8574872, now seen corresponding path program 1 times [2018-01-24 11:52:04,385 INFO L209 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-01-24 11:52:04,386 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-01-24 11:52:04,472 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 11:52:04,473 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-24 11:52:04,473 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 11:52:04,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-24 11:52:04,527 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-24 11:52:04,604 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-24 11:52:04,606 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-24 11:52:04,606 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-01-24 11:52:04,608 INFO L409 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-01-24 11:52:04,624 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-01-24 11:52:04,624 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-01-24 11:52:04,627 INFO L87 Difference]: Start difference. First operand 188 states. Second operand 3 states. [2018-01-24 11:52:04,971 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-24 11:52:04,971 INFO L93 Difference]: Finished difference Result 366 states and 406 transitions. [2018-01-24 11:52:04,972 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-01-24 11:52:04,973 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 4 [2018-01-24 11:52:04,974 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-24 11:52:04,990 INFO L225 Difference]: With dead ends: 366 [2018-01-24 11:52:04,990 INFO L226 Difference]: Without dead ends: 186 [2018-01-24 11:52:04,995 INFO L525 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-01-24 11:52:05,014 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 186 states. [2018-01-24 11:52:05,051 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 186 to 185. [2018-01-24 11:52:05,052 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 185 states. [2018-01-24 11:52:05,056 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 185 states to 185 states and 196 transitions. [2018-01-24 11:52:05,058 INFO L78 Accepts]: Start accepts. Automaton has 185 states and 196 transitions. Word has length 4 [2018-01-24 11:52:05,058 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-24 11:52:05,059 INFO L432 AbstractCegarLoop]: Abstraction has 185 states and 196 transitions. [2018-01-24 11:52:05,059 INFO L433 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-01-24 11:52:05,059 INFO L276 IsEmpty]: Start isEmpty. Operand 185 states and 196 transitions. [2018-01-24 11:52:05,059 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2018-01-24 11:52:05,059 INFO L314 BasicCegarLoop]: Found error trace [2018-01-24 11:52:05,060 INFO L322 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2018-01-24 11:52:05,060 INFO L371 AbstractCegarLoop]: === Iteration 2 === [__list_addErr1RequiresViolation, __list_addErr3RequiresViolation, __list_addErr0RequiresViolation, __list_addErr2RequiresViolation, __list_addErr4RequiresViolation, __list_addErr7RequiresViolation, __list_addErr5RequiresViolation, __list_addErr6RequiresViolation, ULTIMATE.initErr3RequiresViolation, ULTIMATE.initErr1RequiresViolation, ULTIMATE.initErr2RequiresViolation, ULTIMATE.initErr0RequiresViolation, val_from_nodeErr0RequiresViolation, val_from_nodeErr1RequiresViolation, list_moveErr0RequiresViolation, list_moveErr3RequiresViolation, list_moveErr2RequiresViolation, list_moveErr1RequiresViolation, gl_sortErr16RequiresViolation, gl_sortErr4RequiresViolation, gl_sortErr12RequiresViolation, gl_sortErr5RequiresViolation, gl_sortErr0RequiresViolation, gl_sortErr11RequiresViolation, gl_sortErr9RequiresViolation, gl_sortErr2RequiresViolation, gl_sortErr18RequiresViolation, gl_sortErr7RequiresViolation, gl_sortErr13RequiresViolation, gl_sortErr14RequiresViolation, gl_sortErr19RequiresViolation, gl_sortErr6RequiresViolation, gl_sortErr1RequiresViolation, gl_sortErr17RequiresViolation, gl_sortErr15RequiresViolation, gl_sortErr10RequiresViolation, gl_sortErr8RequiresViolation, gl_sortErr3RequiresViolation, list_addErr1RequiresViolation, list_addErr0RequiresViolation, list_emptyErr0RequiresViolation, list_emptyErr1RequiresViolation, __list_delErr0RequiresViolation, __list_delErr2RequiresViolation, __list_delErr3RequiresViolation, __list_delErr1RequiresViolation, mainErr0EnsuresViolation, gl_insertErr0RequiresViolation, gl_insertErr1RequiresViolation, gl_seek_maxErr0RequiresViolation, gl_seek_maxErr2RequiresViolation, gl_seek_maxErr1RequiresViolation, gl_seek_maxErr5RequiresViolation, gl_seek_maxErr3RequiresViolation, gl_seek_maxErr4RequiresViolation, gl_destroyErr4RequiresViolation, gl_destroyErr2RequiresViolation, gl_destroyErr0RequiresViolation, gl_destroyErr1RequiresViolation, gl_destroyErr6RequiresViolation, gl_destroyErr7RequiresViolation, gl_destroyErr3RequiresViolation, gl_destroyErr5RequiresViolation]=== [2018-01-24 11:52:05,060 INFO L82 PathProgramCache]: Analyzing trace with hash 8574873, now seen corresponding path program 1 times [2018-01-24 11:52:05,060 INFO L209 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-01-24 11:52:05,060 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-01-24 11:52:05,061 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 11:52:05,062 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-24 11:52:05,062 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 11:52:05,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-24 11:52:05,078 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-24 11:52:05,153 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-24 11:52:05,153 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-24 11:52:05,153 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-01-24 11:52:05,155 INFO L409 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-01-24 11:52:05,155 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-01-24 11:52:05,156 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-01-24 11:52:05,156 INFO L87 Difference]: Start difference. First operand 185 states and 196 transitions. Second operand 3 states. [2018-01-24 11:52:05,338 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-24 11:52:05,338 INFO L93 Difference]: Finished difference Result 189 states and 201 transitions. [2018-01-24 11:52:05,340 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-01-24 11:52:05,340 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 4 [2018-01-24 11:52:05,341 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-24 11:52:05,343 INFO L225 Difference]: With dead ends: 189 [2018-01-24 11:52:05,343 INFO L226 Difference]: Without dead ends: 187 [2018-01-24 11:52:05,344 INFO L525 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-01-24 11:52:05,345 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 187 states. [2018-01-24 11:52:05,362 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 187 to 183. [2018-01-24 11:52:05,363 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 183 states. [2018-01-24 11:52:05,365 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 183 states to 183 states and 194 transitions. [2018-01-24 11:52:05,365 INFO L78 Accepts]: Start accepts. Automaton has 183 states and 194 transitions. Word has length 4 [2018-01-24 11:52:05,366 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-24 11:52:05,366 INFO L432 AbstractCegarLoop]: Abstraction has 183 states and 194 transitions. [2018-01-24 11:52:05,366 INFO L433 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-01-24 11:52:05,366 INFO L276 IsEmpty]: Start isEmpty. Operand 183 states and 194 transitions. [2018-01-24 11:52:05,367 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2018-01-24 11:52:05,367 INFO L314 BasicCegarLoop]: Found error trace [2018-01-24 11:52:05,367 INFO L322 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-24 11:52:05,367 INFO L371 AbstractCegarLoop]: === Iteration 3 === [__list_addErr1RequiresViolation, __list_addErr3RequiresViolation, __list_addErr0RequiresViolation, __list_addErr2RequiresViolation, __list_addErr4RequiresViolation, __list_addErr7RequiresViolation, __list_addErr5RequiresViolation, __list_addErr6RequiresViolation, ULTIMATE.initErr3RequiresViolation, ULTIMATE.initErr1RequiresViolation, ULTIMATE.initErr2RequiresViolation, ULTIMATE.initErr0RequiresViolation, val_from_nodeErr0RequiresViolation, val_from_nodeErr1RequiresViolation, list_moveErr0RequiresViolation, list_moveErr3RequiresViolation, list_moveErr2RequiresViolation, list_moveErr1RequiresViolation, gl_sortErr16RequiresViolation, gl_sortErr4RequiresViolation, gl_sortErr12RequiresViolation, gl_sortErr5RequiresViolation, gl_sortErr0RequiresViolation, gl_sortErr11RequiresViolation, gl_sortErr9RequiresViolation, gl_sortErr2RequiresViolation, gl_sortErr18RequiresViolation, gl_sortErr7RequiresViolation, gl_sortErr13RequiresViolation, gl_sortErr14RequiresViolation, gl_sortErr19RequiresViolation, gl_sortErr6RequiresViolation, gl_sortErr1RequiresViolation, gl_sortErr17RequiresViolation, gl_sortErr15RequiresViolation, gl_sortErr10RequiresViolation, gl_sortErr8RequiresViolation, gl_sortErr3RequiresViolation, list_addErr1RequiresViolation, list_addErr0RequiresViolation, list_emptyErr0RequiresViolation, list_emptyErr1RequiresViolation, __list_delErr0RequiresViolation, __list_delErr2RequiresViolation, __list_delErr3RequiresViolation, __list_delErr1RequiresViolation, mainErr0EnsuresViolation, gl_insertErr0RequiresViolation, gl_insertErr1RequiresViolation, gl_seek_maxErr0RequiresViolation, gl_seek_maxErr2RequiresViolation, gl_seek_maxErr1RequiresViolation, gl_seek_maxErr5RequiresViolation, gl_seek_maxErr3RequiresViolation, gl_seek_maxErr4RequiresViolation, gl_destroyErr4RequiresViolation, gl_destroyErr2RequiresViolation, gl_destroyErr0RequiresViolation, gl_destroyErr1RequiresViolation, gl_destroyErr6RequiresViolation, gl_destroyErr7RequiresViolation, gl_destroyErr3RequiresViolation, gl_destroyErr5RequiresViolation]=== [2018-01-24 11:52:05,368 INFO L82 PathProgramCache]: Analyzing trace with hash 1609065266, now seen corresponding path program 1 times [2018-01-24 11:52:05,368 INFO L209 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-01-24 11:52:05,368 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-01-24 11:52:05,369 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 11:52:05,369 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-24 11:52:05,370 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 11:52:05,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-24 11:52:05,395 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-24 11:52:05,505 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-24 11:52:05,505 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-24 11:52:05,505 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-01-24 11:52:05,506 INFO L409 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-01-24 11:52:05,507 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-01-24 11:52:05,508 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-01-24 11:52:05,508 INFO L87 Difference]: Start difference. First operand 183 states and 194 transitions. Second operand 4 states. [2018-01-24 11:52:05,692 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-24 11:52:05,692 INFO L93 Difference]: Finished difference Result 183 states and 194 transitions. [2018-01-24 11:52:05,693 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-01-24 11:52:05,693 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 16 [2018-01-24 11:52:05,693 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-24 11:52:05,695 INFO L225 Difference]: With dead ends: 183 [2018-01-24 11:52:05,695 INFO L226 Difference]: Without dead ends: 182 [2018-01-24 11:52:05,695 INFO L525 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-01-24 11:52:05,696 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 182 states. [2018-01-24 11:52:05,709 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 182 to 182. [2018-01-24 11:52:05,710 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 182 states. [2018-01-24 11:52:05,711 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 182 states to 182 states and 193 transitions. [2018-01-24 11:52:05,712 INFO L78 Accepts]: Start accepts. Automaton has 182 states and 193 transitions. Word has length 16 [2018-01-24 11:52:05,712 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-24 11:52:05,712 INFO L432 AbstractCegarLoop]: Abstraction has 182 states and 193 transitions. [2018-01-24 11:52:05,712 INFO L433 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-01-24 11:52:05,712 INFO L276 IsEmpty]: Start isEmpty. Operand 182 states and 193 transitions. [2018-01-24 11:52:05,713 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2018-01-24 11:52:05,713 INFO L314 BasicCegarLoop]: Found error trace [2018-01-24 11:52:05,713 INFO L322 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-24 11:52:05,713 INFO L371 AbstractCegarLoop]: === Iteration 4 === [__list_addErr1RequiresViolation, __list_addErr3RequiresViolation, __list_addErr0RequiresViolation, __list_addErr2RequiresViolation, __list_addErr4RequiresViolation, __list_addErr7RequiresViolation, __list_addErr5RequiresViolation, __list_addErr6RequiresViolation, ULTIMATE.initErr3RequiresViolation, ULTIMATE.initErr1RequiresViolation, ULTIMATE.initErr2RequiresViolation, ULTIMATE.initErr0RequiresViolation, val_from_nodeErr0RequiresViolation, val_from_nodeErr1RequiresViolation, list_moveErr0RequiresViolation, list_moveErr3RequiresViolation, list_moveErr2RequiresViolation, list_moveErr1RequiresViolation, gl_sortErr16RequiresViolation, gl_sortErr4RequiresViolation, gl_sortErr12RequiresViolation, gl_sortErr5RequiresViolation, gl_sortErr0RequiresViolation, gl_sortErr11RequiresViolation, gl_sortErr9RequiresViolation, gl_sortErr2RequiresViolation, gl_sortErr18RequiresViolation, gl_sortErr7RequiresViolation, gl_sortErr13RequiresViolation, gl_sortErr14RequiresViolation, gl_sortErr19RequiresViolation, gl_sortErr6RequiresViolation, gl_sortErr1RequiresViolation, gl_sortErr17RequiresViolation, gl_sortErr15RequiresViolation, gl_sortErr10RequiresViolation, gl_sortErr8RequiresViolation, gl_sortErr3RequiresViolation, list_addErr1RequiresViolation, list_addErr0RequiresViolation, list_emptyErr0RequiresViolation, list_emptyErr1RequiresViolation, __list_delErr0RequiresViolation, __list_delErr2RequiresViolation, __list_delErr3RequiresViolation, __list_delErr1RequiresViolation, mainErr0EnsuresViolation, gl_insertErr0RequiresViolation, gl_insertErr1RequiresViolation, gl_seek_maxErr0RequiresViolation, gl_seek_maxErr2RequiresViolation, gl_seek_maxErr1RequiresViolation, gl_seek_maxErr5RequiresViolation, gl_seek_maxErr3RequiresViolation, gl_seek_maxErr4RequiresViolation, gl_destroyErr4RequiresViolation, gl_destroyErr2RequiresViolation, gl_destroyErr0RequiresViolation, gl_destroyErr1RequiresViolation, gl_destroyErr6RequiresViolation, gl_destroyErr7RequiresViolation, gl_destroyErr3RequiresViolation, gl_destroyErr5RequiresViolation]=== [2018-01-24 11:52:05,714 INFO L82 PathProgramCache]: Analyzing trace with hash 1609065267, now seen corresponding path program 1 times [2018-01-24 11:52:05,714 INFO L209 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-01-24 11:52:05,714 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-01-24 11:52:05,715 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 11:52:05,715 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-24 11:52:05,715 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 11:52:05,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-24 11:52:05,749 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-24 11:52:05,847 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-24 11:52:05,847 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-24 11:52:05,848 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-01-24 11:52:05,848 INFO L409 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-01-24 11:52:05,848 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-01-24 11:52:05,848 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-01-24 11:52:05,849 INFO L87 Difference]: Start difference. First operand 182 states and 193 transitions. Second operand 4 states. [2018-01-24 11:52:05,988 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-24 11:52:05,988 INFO L93 Difference]: Finished difference Result 182 states and 193 transitions. [2018-01-24 11:52:05,988 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-01-24 11:52:05,989 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 16 [2018-01-24 11:52:05,989 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-24 11:52:05,990 INFO L225 Difference]: With dead ends: 182 [2018-01-24 11:52:05,990 INFO L226 Difference]: Without dead ends: 181 [2018-01-24 11:52:05,991 INFO L525 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-01-24 11:52:05,991 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 181 states. [2018-01-24 11:52:06,002 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 181 to 181. [2018-01-24 11:52:06,002 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 181 states. [2018-01-24 11:52:06,003 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 181 states to 181 states and 192 transitions. [2018-01-24 11:52:06,003 INFO L78 Accepts]: Start accepts. Automaton has 181 states and 192 transitions. Word has length 16 [2018-01-24 11:52:06,003 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-24 11:52:06,004 INFO L432 AbstractCegarLoop]: Abstraction has 181 states and 192 transitions. [2018-01-24 11:52:06,004 INFO L433 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-01-24 11:52:06,004 INFO L276 IsEmpty]: Start isEmpty. Operand 181 states and 192 transitions. [2018-01-24 11:52:06,004 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2018-01-24 11:52:06,004 INFO L314 BasicCegarLoop]: Found error trace [2018-01-24 11:52:06,004 INFO L322 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-24 11:52:06,004 INFO L371 AbstractCegarLoop]: === Iteration 5 === [__list_addErr1RequiresViolation, __list_addErr3RequiresViolation, __list_addErr0RequiresViolation, __list_addErr2RequiresViolation, __list_addErr4RequiresViolation, __list_addErr7RequiresViolation, __list_addErr5RequiresViolation, __list_addErr6RequiresViolation, ULTIMATE.initErr3RequiresViolation, ULTIMATE.initErr1RequiresViolation, ULTIMATE.initErr2RequiresViolation, ULTIMATE.initErr0RequiresViolation, val_from_nodeErr0RequiresViolation, val_from_nodeErr1RequiresViolation, list_moveErr0RequiresViolation, list_moveErr3RequiresViolation, list_moveErr2RequiresViolation, list_moveErr1RequiresViolation, gl_sortErr16RequiresViolation, gl_sortErr4RequiresViolation, gl_sortErr12RequiresViolation, gl_sortErr5RequiresViolation, gl_sortErr0RequiresViolation, gl_sortErr11RequiresViolation, gl_sortErr9RequiresViolation, gl_sortErr2RequiresViolation, gl_sortErr18RequiresViolation, gl_sortErr7RequiresViolation, gl_sortErr13RequiresViolation, gl_sortErr14RequiresViolation, gl_sortErr19RequiresViolation, gl_sortErr6RequiresViolation, gl_sortErr1RequiresViolation, gl_sortErr17RequiresViolation, gl_sortErr15RequiresViolation, gl_sortErr10RequiresViolation, gl_sortErr8RequiresViolation, gl_sortErr3RequiresViolation, list_addErr1RequiresViolation, list_addErr0RequiresViolation, list_emptyErr0RequiresViolation, list_emptyErr1RequiresViolation, __list_delErr0RequiresViolation, __list_delErr2RequiresViolation, __list_delErr3RequiresViolation, __list_delErr1RequiresViolation, mainErr0EnsuresViolation, gl_insertErr0RequiresViolation, gl_insertErr1RequiresViolation, gl_seek_maxErr0RequiresViolation, gl_seek_maxErr2RequiresViolation, gl_seek_maxErr1RequiresViolation, gl_seek_maxErr5RequiresViolation, gl_seek_maxErr3RequiresViolation, gl_seek_maxErr4RequiresViolation, gl_destroyErr4RequiresViolation, gl_destroyErr2RequiresViolation, gl_destroyErr0RequiresViolation, gl_destroyErr1RequiresViolation, gl_destroyErr6RequiresViolation, gl_destroyErr7RequiresViolation, gl_destroyErr3RequiresViolation, gl_destroyErr5RequiresViolation]=== [2018-01-24 11:52:06,005 INFO L82 PathProgramCache]: Analyzing trace with hash -466429743, now seen corresponding path program 1 times [2018-01-24 11:52:06,005 INFO L209 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-01-24 11:52:06,005 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-01-24 11:52:06,005 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 11:52:06,006 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-24 11:52:06,006 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 11:52:06,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-24 11:52:06,035 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-24 11:52:06,152 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-24 11:52:06,153 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-24 11:52:06,153 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-01-24 11:52:06,153 INFO L409 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-01-24 11:52:06,153 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-01-24 11:52:06,154 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2018-01-24 11:52:06,154 INFO L87 Difference]: Start difference. First operand 181 states and 192 transitions. Second operand 7 states. [2018-01-24 11:52:06,461 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-24 11:52:06,461 INFO L93 Difference]: Finished difference Result 190 states and 200 transitions. [2018-01-24 11:52:06,462 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-01-24 11:52:06,462 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 19 [2018-01-24 11:52:06,462 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-24 11:52:06,463 INFO L225 Difference]: With dead ends: 190 [2018-01-24 11:52:06,464 INFO L226 Difference]: Without dead ends: 189 [2018-01-24 11:52:06,464 INFO L525 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2018-01-24 11:52:06,465 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 189 states. [2018-01-24 11:52:06,474 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 189 to 187. [2018-01-24 11:52:06,475 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 187 states. [2018-01-24 11:52:06,476 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 187 states to 187 states and 199 transitions. [2018-01-24 11:52:06,476 INFO L78 Accepts]: Start accepts. Automaton has 187 states and 199 transitions. Word has length 19 [2018-01-24 11:52:06,477 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-24 11:52:06,477 INFO L432 AbstractCegarLoop]: Abstraction has 187 states and 199 transitions. [2018-01-24 11:52:06,477 INFO L433 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-01-24 11:52:06,477 INFO L276 IsEmpty]: Start isEmpty. Operand 187 states and 199 transitions. [2018-01-24 11:52:06,478 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2018-01-24 11:52:06,478 INFO L314 BasicCegarLoop]: Found error trace [2018-01-24 11:52:06,478 INFO L322 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-24 11:52:06,478 INFO L371 AbstractCegarLoop]: === Iteration 6 === [__list_addErr1RequiresViolation, __list_addErr3RequiresViolation, __list_addErr0RequiresViolation, __list_addErr2RequiresViolation, __list_addErr4RequiresViolation, __list_addErr7RequiresViolation, __list_addErr5RequiresViolation, __list_addErr6RequiresViolation, ULTIMATE.initErr3RequiresViolation, ULTIMATE.initErr1RequiresViolation, ULTIMATE.initErr2RequiresViolation, ULTIMATE.initErr0RequiresViolation, val_from_nodeErr0RequiresViolation, val_from_nodeErr1RequiresViolation, list_moveErr0RequiresViolation, list_moveErr3RequiresViolation, list_moveErr2RequiresViolation, list_moveErr1RequiresViolation, gl_sortErr16RequiresViolation, gl_sortErr4RequiresViolation, gl_sortErr12RequiresViolation, gl_sortErr5RequiresViolation, gl_sortErr0RequiresViolation, gl_sortErr11RequiresViolation, gl_sortErr9RequiresViolation, gl_sortErr2RequiresViolation, gl_sortErr18RequiresViolation, gl_sortErr7RequiresViolation, gl_sortErr13RequiresViolation, gl_sortErr14RequiresViolation, gl_sortErr19RequiresViolation, gl_sortErr6RequiresViolation, gl_sortErr1RequiresViolation, gl_sortErr17RequiresViolation, gl_sortErr15RequiresViolation, gl_sortErr10RequiresViolation, gl_sortErr8RequiresViolation, gl_sortErr3RequiresViolation, list_addErr1RequiresViolation, list_addErr0RequiresViolation, list_emptyErr0RequiresViolation, list_emptyErr1RequiresViolation, __list_delErr0RequiresViolation, __list_delErr2RequiresViolation, __list_delErr3RequiresViolation, __list_delErr1RequiresViolation, mainErr0EnsuresViolation, gl_insertErr0RequiresViolation, gl_insertErr1RequiresViolation, gl_seek_maxErr0RequiresViolation, gl_seek_maxErr2RequiresViolation, gl_seek_maxErr1RequiresViolation, gl_seek_maxErr5RequiresViolation, gl_seek_maxErr3RequiresViolation, gl_seek_maxErr4RequiresViolation, gl_destroyErr4RequiresViolation, gl_destroyErr2RequiresViolation, gl_destroyErr0RequiresViolation, gl_destroyErr1RequiresViolation, gl_destroyErr6RequiresViolation, gl_destroyErr7RequiresViolation, gl_destroyErr3RequiresViolation, gl_destroyErr5RequiresViolation]=== [2018-01-24 11:52:06,478 INFO L82 PathProgramCache]: Analyzing trace with hash -466429742, now seen corresponding path program 1 times [2018-01-24 11:52:06,478 INFO L209 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-01-24 11:52:06,479 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-01-24 11:52:06,479 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 11:52:06,480 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-24 11:52:06,480 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 11:52:06,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-24 11:52:06,500 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-24 11:52:06,599 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-24 11:52:06,599 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-24 11:52:06,599 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-01-24 11:52:06,600 INFO L409 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-01-24 11:52:06,600 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-01-24 11:52:06,600 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2018-01-24 11:52:06,601 INFO L87 Difference]: Start difference. First operand 187 states and 199 transitions. Second operand 7 states. [2018-01-24 11:52:07,182 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-24 11:52:07,182 INFO L93 Difference]: Finished difference Result 188 states and 199 transitions. [2018-01-24 11:52:07,182 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-01-24 11:52:07,182 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 19 [2018-01-24 11:52:07,183 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-24 11:52:07,184 INFO L225 Difference]: With dead ends: 188 [2018-01-24 11:52:07,184 INFO L226 Difference]: Without dead ends: 182 [2018-01-24 11:52:07,185 INFO L525 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2018-01-24 11:52:07,185 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 182 states. [2018-01-24 11:52:07,196 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 182 to 182. [2018-01-24 11:52:07,196 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 182 states. [2018-01-24 11:52:07,197 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 182 states to 182 states and 192 transitions. [2018-01-24 11:52:07,197 INFO L78 Accepts]: Start accepts. Automaton has 182 states and 192 transitions. Word has length 19 [2018-01-24 11:52:07,198 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-24 11:52:07,198 INFO L432 AbstractCegarLoop]: Abstraction has 182 states and 192 transitions. [2018-01-24 11:52:07,198 INFO L433 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-01-24 11:52:07,198 INFO L276 IsEmpty]: Start isEmpty. Operand 182 states and 192 transitions. [2018-01-24 11:52:07,198 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2018-01-24 11:52:07,198 INFO L314 BasicCegarLoop]: Found error trace [2018-01-24 11:52:07,198 INFO L322 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-24 11:52:07,199 INFO L371 AbstractCegarLoop]: === Iteration 7 === [__list_addErr1RequiresViolation, __list_addErr3RequiresViolation, __list_addErr0RequiresViolation, __list_addErr2RequiresViolation, __list_addErr4RequiresViolation, __list_addErr7RequiresViolation, __list_addErr5RequiresViolation, __list_addErr6RequiresViolation, ULTIMATE.initErr3RequiresViolation, ULTIMATE.initErr1RequiresViolation, ULTIMATE.initErr2RequiresViolation, ULTIMATE.initErr0RequiresViolation, val_from_nodeErr0RequiresViolation, val_from_nodeErr1RequiresViolation, list_moveErr0RequiresViolation, list_moveErr3RequiresViolation, list_moveErr2RequiresViolation, list_moveErr1RequiresViolation, gl_sortErr16RequiresViolation, gl_sortErr4RequiresViolation, gl_sortErr12RequiresViolation, gl_sortErr5RequiresViolation, gl_sortErr0RequiresViolation, gl_sortErr11RequiresViolation, gl_sortErr9RequiresViolation, gl_sortErr2RequiresViolation, gl_sortErr18RequiresViolation, gl_sortErr7RequiresViolation, gl_sortErr13RequiresViolation, gl_sortErr14RequiresViolation, gl_sortErr19RequiresViolation, gl_sortErr6RequiresViolation, gl_sortErr1RequiresViolation, gl_sortErr17RequiresViolation, gl_sortErr15RequiresViolation, gl_sortErr10RequiresViolation, gl_sortErr8RequiresViolation, gl_sortErr3RequiresViolation, list_addErr1RequiresViolation, list_addErr0RequiresViolation, list_emptyErr0RequiresViolation, list_emptyErr1RequiresViolation, __list_delErr0RequiresViolation, __list_delErr2RequiresViolation, __list_delErr3RequiresViolation, __list_delErr1RequiresViolation, mainErr0EnsuresViolation, gl_insertErr0RequiresViolation, gl_insertErr1RequiresViolation, gl_seek_maxErr0RequiresViolation, gl_seek_maxErr2RequiresViolation, gl_seek_maxErr1RequiresViolation, gl_seek_maxErr5RequiresViolation, gl_seek_maxErr3RequiresViolation, gl_seek_maxErr4RequiresViolation, gl_destroyErr4RequiresViolation, gl_destroyErr2RequiresViolation, gl_destroyErr0RequiresViolation, gl_destroyErr1RequiresViolation, gl_destroyErr6RequiresViolation, gl_destroyErr7RequiresViolation, gl_destroyErr3RequiresViolation, gl_destroyErr5RequiresViolation]=== [2018-01-24 11:52:07,199 INFO L82 PathProgramCache]: Analyzing trace with hash -1189060692, now seen corresponding path program 1 times [2018-01-24 11:52:07,199 INFO L209 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-01-24 11:52:07,199 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-01-24 11:52:07,200 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 11:52:07,200 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-24 11:52:07,200 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 11:52:07,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-24 11:52:07,223 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-24 11:52:07,442 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-24 11:52:07,442 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-24 11:52:07,442 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2018-01-24 11:52:07,443 INFO L409 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-01-24 11:52:07,443 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-01-24 11:52:07,443 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2018-01-24 11:52:07,443 INFO L87 Difference]: Start difference. First operand 182 states and 192 transitions. Second operand 10 states. [2018-01-24 11:52:07,901 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-24 11:52:07,902 INFO L93 Difference]: Finished difference Result 209 states and 221 transitions. [2018-01-24 11:52:07,902 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2018-01-24 11:52:07,902 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 22 [2018-01-24 11:52:07,902 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-24 11:52:07,904 INFO L225 Difference]: With dead ends: 209 [2018-01-24 11:52:07,904 INFO L226 Difference]: Without dead ends: 208 [2018-01-24 11:52:07,905 INFO L525 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 2 SyntacticMatches, 4 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=60, Invalid=246, Unknown=0, NotChecked=0, Total=306 [2018-01-24 11:52:07,905 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 208 states. [2018-01-24 11:52:07,919 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 208 to 200. [2018-01-24 11:52:07,919 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 200 states. [2018-01-24 11:52:07,921 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 200 states to 200 states and 219 transitions. [2018-01-24 11:52:07,921 INFO L78 Accepts]: Start accepts. Automaton has 200 states and 219 transitions. Word has length 22 [2018-01-24 11:52:07,921 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-24 11:52:07,921 INFO L432 AbstractCegarLoop]: Abstraction has 200 states and 219 transitions. [2018-01-24 11:52:07,921 INFO L433 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-01-24 11:52:07,922 INFO L276 IsEmpty]: Start isEmpty. Operand 200 states and 219 transitions. [2018-01-24 11:52:07,922 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2018-01-24 11:52:07,922 INFO L314 BasicCegarLoop]: Found error trace [2018-01-24 11:52:07,922 INFO L322 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-24 11:52:07,922 INFO L371 AbstractCegarLoop]: === Iteration 8 === [__list_addErr1RequiresViolation, __list_addErr3RequiresViolation, __list_addErr0RequiresViolation, __list_addErr2RequiresViolation, __list_addErr4RequiresViolation, __list_addErr7RequiresViolation, __list_addErr5RequiresViolation, __list_addErr6RequiresViolation, ULTIMATE.initErr3RequiresViolation, ULTIMATE.initErr1RequiresViolation, ULTIMATE.initErr2RequiresViolation, ULTIMATE.initErr0RequiresViolation, val_from_nodeErr0RequiresViolation, val_from_nodeErr1RequiresViolation, list_moveErr0RequiresViolation, list_moveErr3RequiresViolation, list_moveErr2RequiresViolation, list_moveErr1RequiresViolation, gl_sortErr16RequiresViolation, gl_sortErr4RequiresViolation, gl_sortErr12RequiresViolation, gl_sortErr5RequiresViolation, gl_sortErr0RequiresViolation, gl_sortErr11RequiresViolation, gl_sortErr9RequiresViolation, gl_sortErr2RequiresViolation, gl_sortErr18RequiresViolation, gl_sortErr7RequiresViolation, gl_sortErr13RequiresViolation, gl_sortErr14RequiresViolation, gl_sortErr19RequiresViolation, gl_sortErr6RequiresViolation, gl_sortErr1RequiresViolation, gl_sortErr17RequiresViolation, gl_sortErr15RequiresViolation, gl_sortErr10RequiresViolation, gl_sortErr8RequiresViolation, gl_sortErr3RequiresViolation, list_addErr1RequiresViolation, list_addErr0RequiresViolation, list_emptyErr0RequiresViolation, list_emptyErr1RequiresViolation, __list_delErr0RequiresViolation, __list_delErr2RequiresViolation, __list_delErr3RequiresViolation, __list_delErr1RequiresViolation, mainErr0EnsuresViolation, gl_insertErr0RequiresViolation, gl_insertErr1RequiresViolation, gl_seek_maxErr0RequiresViolation, gl_seek_maxErr2RequiresViolation, gl_seek_maxErr1RequiresViolation, gl_seek_maxErr5RequiresViolation, gl_seek_maxErr3RequiresViolation, gl_seek_maxErr4RequiresViolation, gl_destroyErr4RequiresViolation, gl_destroyErr2RequiresViolation, gl_destroyErr0RequiresViolation, gl_destroyErr1RequiresViolation, gl_destroyErr6RequiresViolation, gl_destroyErr7RequiresViolation, gl_destroyErr3RequiresViolation, gl_destroyErr5RequiresViolation]=== [2018-01-24 11:52:07,923 INFO L82 PathProgramCache]: Analyzing trace with hash -1189060691, now seen corresponding path program 1 times [2018-01-24 11:52:07,923 INFO L209 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-01-24 11:52:07,923 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-01-24 11:52:07,924 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 11:52:07,924 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-24 11:52:07,924 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 11:52:07,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-24 11:52:07,943 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-24 11:52:08,226 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-24 11:52:08,226 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-24 11:52:08,226 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2018-01-24 11:52:08,226 INFO L409 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-01-24 11:52:08,227 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-01-24 11:52:08,227 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2018-01-24 11:52:08,227 INFO L87 Difference]: Start difference. First operand 200 states and 219 transitions. Second operand 11 states. [2018-01-24 11:52:10,059 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-24 11:52:10,059 INFO L93 Difference]: Finished difference Result 373 states and 393 transitions. [2018-01-24 11:52:10,060 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2018-01-24 11:52:10,060 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 22 [2018-01-24 11:52:10,060 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-24 11:52:10,062 INFO L225 Difference]: With dead ends: 373 [2018-01-24 11:52:10,063 INFO L226 Difference]: Without dead ends: 372 [2018-01-24 11:52:10,063 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 [2018-01-24 11:52:10,064 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 372 states. [2018-01-24 11:52:10,083 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 372 to 296. [2018-01-24 11:52:10,083 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 296 states. [2018-01-24 11:52:10,086 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 296 states to 296 states and 362 transitions. [2018-01-24 11:52:10,086 INFO L78 Accepts]: Start accepts. Automaton has 296 states and 362 transitions. Word has length 22 [2018-01-24 11:52:10,086 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-24 11:52:10,087 INFO L432 AbstractCegarLoop]: Abstraction has 296 states and 362 transitions. [2018-01-24 11:52:10,087 INFO L433 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-01-24 11:52:10,087 INFO L276 IsEmpty]: Start isEmpty. Operand 296 states and 362 transitions. [2018-01-24 11:52:10,087 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2018-01-24 11:52:10,088 INFO L314 BasicCegarLoop]: Found error trace [2018-01-24 11:52:10,088 INFO L322 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-24 11:52:10,088 INFO L371 AbstractCegarLoop]: === Iteration 9 === [__list_addErr1RequiresViolation, __list_addErr3RequiresViolation, __list_addErr0RequiresViolation, __list_addErr2RequiresViolation, __list_addErr4RequiresViolation, __list_addErr7RequiresViolation, __list_addErr5RequiresViolation, __list_addErr6RequiresViolation, ULTIMATE.initErr3RequiresViolation, ULTIMATE.initErr1RequiresViolation, ULTIMATE.initErr2RequiresViolation, ULTIMATE.initErr0RequiresViolation, val_from_nodeErr0RequiresViolation, val_from_nodeErr1RequiresViolation, list_moveErr0RequiresViolation, list_moveErr3RequiresViolation, list_moveErr2RequiresViolation, list_moveErr1RequiresViolation, gl_sortErr16RequiresViolation, gl_sortErr4RequiresViolation, gl_sortErr12RequiresViolation, gl_sortErr5RequiresViolation, gl_sortErr0RequiresViolation, gl_sortErr11RequiresViolation, gl_sortErr9RequiresViolation, gl_sortErr2RequiresViolation, gl_sortErr18RequiresViolation, gl_sortErr7RequiresViolation, gl_sortErr13RequiresViolation, gl_sortErr14RequiresViolation, gl_sortErr19RequiresViolation, gl_sortErr6RequiresViolation, gl_sortErr1RequiresViolation, gl_sortErr17RequiresViolation, gl_sortErr15RequiresViolation, gl_sortErr10RequiresViolation, gl_sortErr8RequiresViolation, gl_sortErr3RequiresViolation, list_addErr1RequiresViolation, list_addErr0RequiresViolation, list_emptyErr0RequiresViolation, list_emptyErr1RequiresViolation, __list_delErr0RequiresViolation, __list_delErr2RequiresViolation, __list_delErr3RequiresViolation, __list_delErr1RequiresViolation, mainErr0EnsuresViolation, gl_insertErr0RequiresViolation, gl_insertErr1RequiresViolation, gl_seek_maxErr0RequiresViolation, gl_seek_maxErr2RequiresViolation, gl_seek_maxErr1RequiresViolation, gl_seek_maxErr5RequiresViolation, gl_seek_maxErr3RequiresViolation, gl_seek_maxErr4RequiresViolation, gl_destroyErr4RequiresViolation, gl_destroyErr2RequiresViolation, gl_destroyErr0RequiresViolation, gl_destroyErr1RequiresViolation, gl_destroyErr6RequiresViolation, gl_destroyErr7RequiresViolation, gl_destroyErr3RequiresViolation, gl_destroyErr5RequiresViolation]=== [2018-01-24 11:52:10,088 INFO L82 PathProgramCache]: Analyzing trace with hash 1793824186, now seen corresponding path program 1 times [2018-01-24 11:52:10,088 INFO L209 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-01-24 11:52:10,088 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-01-24 11:52:10,089 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 11:52:10,089 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-24 11:52:10,089 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 11:52:10,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-24 11:52:10,116 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-24 11:52:10,349 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-24 11:52:10,349 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-24 11:52:10,350 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-01-24 11:52:10,350 INFO L409 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-01-24 11:52:10,350 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-01-24 11:52:10,350 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-01-24 11:52:10,351 INFO L87 Difference]: Start difference. First operand 296 states and 362 transitions. Second operand 7 states. [2018-01-24 11:52:10,890 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-24 11:52:10,890 INFO L93 Difference]: Finished difference Result 310 states and 376 transitions. [2018-01-24 11:52:10,891 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-01-24 11:52:10,891 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 23 [2018-01-24 11:52:10,891 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-24 11:52:10,893 INFO L225 Difference]: With dead ends: 310 [2018-01-24 11:52:10,893 INFO L226 Difference]: Without dead ends: 308 [2018-01-24 11:52:10,894 INFO L525 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2018-01-24 11:52:10,894 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 308 states. [2018-01-24 11:52:10,909 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 308 to 211. [2018-01-24 11:52:10,909 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 211 states. [2018-01-24 11:52:10,911 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 211 states to 211 states and 230 transitions. [2018-01-24 11:52:10,912 INFO L78 Accepts]: Start accepts. Automaton has 211 states and 230 transitions. Word has length 23 [2018-01-24 11:52:10,912 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-24 11:52:10,912 INFO L432 AbstractCegarLoop]: Abstraction has 211 states and 230 transitions. [2018-01-24 11:52:10,912 INFO L433 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-01-24 11:52:10,912 INFO L276 IsEmpty]: Start isEmpty. Operand 211 states and 230 transitions. [2018-01-24 11:52:10,913 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2018-01-24 11:52:10,913 INFO L314 BasicCegarLoop]: Found error trace [2018-01-24 11:52:10,913 INFO L322 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-24 11:52:10,914 INFO L371 AbstractCegarLoop]: === Iteration 10 === [__list_addErr1RequiresViolation, __list_addErr3RequiresViolation, __list_addErr0RequiresViolation, __list_addErr2RequiresViolation, __list_addErr4RequiresViolation, __list_addErr7RequiresViolation, __list_addErr5RequiresViolation, __list_addErr6RequiresViolation, ULTIMATE.initErr3RequiresViolation, ULTIMATE.initErr1RequiresViolation, ULTIMATE.initErr2RequiresViolation, ULTIMATE.initErr0RequiresViolation, val_from_nodeErr0RequiresViolation, val_from_nodeErr1RequiresViolation, list_moveErr0RequiresViolation, list_moveErr3RequiresViolation, list_moveErr2RequiresViolation, list_moveErr1RequiresViolation, gl_sortErr16RequiresViolation, gl_sortErr4RequiresViolation, gl_sortErr12RequiresViolation, gl_sortErr5RequiresViolation, gl_sortErr0RequiresViolation, gl_sortErr11RequiresViolation, gl_sortErr9RequiresViolation, gl_sortErr2RequiresViolation, gl_sortErr18RequiresViolation, gl_sortErr7RequiresViolation, gl_sortErr13RequiresViolation, gl_sortErr14RequiresViolation, gl_sortErr19RequiresViolation, gl_sortErr6RequiresViolation, gl_sortErr1RequiresViolation, gl_sortErr17RequiresViolation, gl_sortErr15RequiresViolation, gl_sortErr10RequiresViolation, gl_sortErr8RequiresViolation, gl_sortErr3RequiresViolation, list_addErr1RequiresViolation, list_addErr0RequiresViolation, list_emptyErr0RequiresViolation, list_emptyErr1RequiresViolation, __list_delErr0RequiresViolation, __list_delErr2RequiresViolation, __list_delErr3RequiresViolation, __list_delErr1RequiresViolation, mainErr0EnsuresViolation, gl_insertErr0RequiresViolation, gl_insertErr1RequiresViolation, gl_seek_maxErr0RequiresViolation, gl_seek_maxErr2RequiresViolation, gl_seek_maxErr1RequiresViolation, gl_seek_maxErr5RequiresViolation, gl_seek_maxErr3RequiresViolation, gl_seek_maxErr4RequiresViolation, gl_destroyErr4RequiresViolation, gl_destroyErr2RequiresViolation, gl_destroyErr0RequiresViolation, gl_destroyErr1RequiresViolation, gl_destroyErr6RequiresViolation, gl_destroyErr7RequiresViolation, gl_destroyErr3RequiresViolation, gl_destroyErr5RequiresViolation]=== [2018-01-24 11:52:10,914 INFO L82 PathProgramCache]: Analyzing trace with hash 1793824187, now seen corresponding path program 1 times [2018-01-24 11:52:10,916 INFO L209 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-01-24 11:52:10,917 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-01-24 11:52:10,918 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 11:52:10,918 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-24 11:52:10,918 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 11:52:10,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-24 11:52:10,945 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-24 11:52:11,143 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-24 11:52:11,143 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-24 11:52:11,143 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-01-24 11:52:11,144 INFO L409 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-01-24 11:52:11,144 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-01-24 11:52:11,144 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2018-01-24 11:52:11,144 INFO L87 Difference]: Start difference. First operand 211 states and 230 transitions. Second operand 8 states. [2018-01-24 11:52:11,655 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-24 11:52:11,655 INFO L93 Difference]: Finished difference Result 217 states and 230 transitions. [2018-01-24 11:52:11,655 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-01-24 11:52:11,655 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 23 [2018-01-24 11:52:11,656 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-24 11:52:11,657 INFO L225 Difference]: With dead ends: 217 [2018-01-24 11:52:11,657 INFO L226 Difference]: Without dead ends: 215 [2018-01-24 11:52:11,657 INFO L525 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2018-01-24 11:52:11,658 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 215 states. [2018-01-24 11:52:11,670 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 215 to 211. [2018-01-24 11:52:11,671 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 211 states. [2018-01-24 11:52:11,672 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 211 states to 211 states and 226 transitions. [2018-01-24 11:52:11,673 INFO L78 Accepts]: Start accepts. Automaton has 211 states and 226 transitions. Word has length 23 [2018-01-24 11:52:11,673 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-24 11:52:11,673 INFO L432 AbstractCegarLoop]: Abstraction has 211 states and 226 transitions. [2018-01-24 11:52:11,673 INFO L433 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-01-24 11:52:11,673 INFO L276 IsEmpty]: Start isEmpty. Operand 211 states and 226 transitions. [2018-01-24 11:52:11,674 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2018-01-24 11:52:11,674 INFO L314 BasicCegarLoop]: Found error trace [2018-01-24 11:52:11,674 INFO L322 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-24 11:52:11,674 INFO L371 AbstractCegarLoop]: === Iteration 11 === [__list_addErr1RequiresViolation, __list_addErr3RequiresViolation, __list_addErr0RequiresViolation, __list_addErr2RequiresViolation, __list_addErr4RequiresViolation, __list_addErr7RequiresViolation, __list_addErr5RequiresViolation, __list_addErr6RequiresViolation, ULTIMATE.initErr3RequiresViolation, ULTIMATE.initErr1RequiresViolation, ULTIMATE.initErr2RequiresViolation, ULTIMATE.initErr0RequiresViolation, val_from_nodeErr0RequiresViolation, val_from_nodeErr1RequiresViolation, list_moveErr0RequiresViolation, list_moveErr3RequiresViolation, list_moveErr2RequiresViolation, list_moveErr1RequiresViolation, gl_sortErr16RequiresViolation, gl_sortErr4RequiresViolation, gl_sortErr12RequiresViolation, gl_sortErr5RequiresViolation, gl_sortErr0RequiresViolation, gl_sortErr11RequiresViolation, gl_sortErr9RequiresViolation, gl_sortErr2RequiresViolation, gl_sortErr18RequiresViolation, gl_sortErr7RequiresViolation, gl_sortErr13RequiresViolation, gl_sortErr14RequiresViolation, gl_sortErr19RequiresViolation, gl_sortErr6RequiresViolation, gl_sortErr1RequiresViolation, gl_sortErr17RequiresViolation, gl_sortErr15RequiresViolation, gl_sortErr10RequiresViolation, gl_sortErr8RequiresViolation, gl_sortErr3RequiresViolation, list_addErr1RequiresViolation, list_addErr0RequiresViolation, list_emptyErr0RequiresViolation, list_emptyErr1RequiresViolation, __list_delErr0RequiresViolation, __list_delErr2RequiresViolation, __list_delErr3RequiresViolation, __list_delErr1RequiresViolation, mainErr0EnsuresViolation, gl_insertErr0RequiresViolation, gl_insertErr1RequiresViolation, gl_seek_maxErr0RequiresViolation, gl_seek_maxErr2RequiresViolation, gl_seek_maxErr1RequiresViolation, gl_seek_maxErr5RequiresViolation, gl_seek_maxErr3RequiresViolation, gl_seek_maxErr4RequiresViolation, gl_destroyErr4RequiresViolation, gl_destroyErr2RequiresViolation, gl_destroyErr0RequiresViolation, gl_destroyErr1RequiresViolation, gl_destroyErr6RequiresViolation, gl_destroyErr7RequiresViolation, gl_destroyErr3RequiresViolation, gl_destroyErr5RequiresViolation]=== [2018-01-24 11:52:11,675 INFO L82 PathProgramCache]: Analyzing trace with hash 1583156317, now seen corresponding path program 1 times [2018-01-24 11:52:11,675 INFO L209 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-01-24 11:52:11,675 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-01-24 11:52:11,675 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 11:52:11,675 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-24 11:52:11,676 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 11:52:11,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-24 11:52:11,689 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-24 11:52:11,728 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-24 11:52:11,729 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-24 11:52:11,729 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-01-24 11:52:11,729 INFO L409 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-01-24 11:52:11,729 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-01-24 11:52:11,729 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-01-24 11:52:11,730 INFO L87 Difference]: Start difference. First operand 211 states and 226 transitions. Second operand 5 states. [2018-01-24 11:52:11,953 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-24 11:52:11,953 INFO L93 Difference]: Finished difference Result 211 states and 226 transitions. [2018-01-24 11:52:11,953 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-01-24 11:52:11,953 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 25 [2018-01-24 11:52:11,954 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-24 11:52:11,955 INFO L225 Difference]: With dead ends: 211 [2018-01-24 11:52:11,956 INFO L226 Difference]: Without dead ends: 210 [2018-01-24 11:52:11,957 INFO L525 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-01-24 11:52:11,957 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 210 states. [2018-01-24 11:52:11,971 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 210 to 210. [2018-01-24 11:52:11,971 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 210 states. [2018-01-24 11:52:11,973 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 210 states to 210 states and 223 transitions. [2018-01-24 11:52:11,973 INFO L78 Accepts]: Start accepts. Automaton has 210 states and 223 transitions. Word has length 25 [2018-01-24 11:52:11,973 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-24 11:52:11,973 INFO L432 AbstractCegarLoop]: Abstraction has 210 states and 223 transitions. [2018-01-24 11:52:11,973 INFO L433 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-01-24 11:52:11,974 INFO L276 IsEmpty]: Start isEmpty. Operand 210 states and 223 transitions. [2018-01-24 11:52:11,974 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2018-01-24 11:52:11,974 INFO L314 BasicCegarLoop]: Found error trace [2018-01-24 11:52:11,974 INFO L322 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-24 11:52:11,975 INFO L371 AbstractCegarLoop]: === Iteration 12 === [__list_addErr1RequiresViolation, __list_addErr3RequiresViolation, __list_addErr0RequiresViolation, __list_addErr2RequiresViolation, __list_addErr4RequiresViolation, __list_addErr7RequiresViolation, __list_addErr5RequiresViolation, __list_addErr6RequiresViolation, ULTIMATE.initErr3RequiresViolation, ULTIMATE.initErr1RequiresViolation, ULTIMATE.initErr2RequiresViolation, ULTIMATE.initErr0RequiresViolation, val_from_nodeErr0RequiresViolation, val_from_nodeErr1RequiresViolation, list_moveErr0RequiresViolation, list_moveErr3RequiresViolation, list_moveErr2RequiresViolation, list_moveErr1RequiresViolation, gl_sortErr16RequiresViolation, gl_sortErr4RequiresViolation, gl_sortErr12RequiresViolation, gl_sortErr5RequiresViolation, gl_sortErr0RequiresViolation, gl_sortErr11RequiresViolation, gl_sortErr9RequiresViolation, gl_sortErr2RequiresViolation, gl_sortErr18RequiresViolation, gl_sortErr7RequiresViolation, gl_sortErr13RequiresViolation, gl_sortErr14RequiresViolation, gl_sortErr19RequiresViolation, gl_sortErr6RequiresViolation, gl_sortErr1RequiresViolation, gl_sortErr17RequiresViolation, gl_sortErr15RequiresViolation, gl_sortErr10RequiresViolation, gl_sortErr8RequiresViolation, gl_sortErr3RequiresViolation, list_addErr1RequiresViolation, list_addErr0RequiresViolation, list_emptyErr0RequiresViolation, list_emptyErr1RequiresViolation, __list_delErr0RequiresViolation, __list_delErr2RequiresViolation, __list_delErr3RequiresViolation, __list_delErr1RequiresViolation, mainErr0EnsuresViolation, gl_insertErr0RequiresViolation, gl_insertErr1RequiresViolation, gl_seek_maxErr0RequiresViolation, gl_seek_maxErr2RequiresViolation, gl_seek_maxErr1RequiresViolation, gl_seek_maxErr5RequiresViolation, gl_seek_maxErr3RequiresViolation, gl_seek_maxErr4RequiresViolation, gl_destroyErr4RequiresViolation, gl_destroyErr2RequiresViolation, gl_destroyErr0RequiresViolation, gl_destroyErr1RequiresViolation, gl_destroyErr6RequiresViolation, gl_destroyErr7RequiresViolation, gl_destroyErr3RequiresViolation, gl_destroyErr5RequiresViolation]=== [2018-01-24 11:52:11,975 INFO L82 PathProgramCache]: Analyzing trace with hash 1583156318, now seen corresponding path program 1 times [2018-01-24 11:52:11,975 INFO L209 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-01-24 11:52:11,975 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-01-24 11:52:11,976 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 11:52:11,976 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-24 11:52:11,976 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 11:52:11,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-24 11:52:11,992 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-24 11:52:12,160 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-24 11:52:12,161 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-24 11:52:12,161 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-01-24 11:52:12,161 INFO L409 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-01-24 11:52:12,162 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-01-24 11:52:12,162 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2018-01-24 11:52:12,162 INFO L87 Difference]: Start difference. First operand 210 states and 223 transitions. Second operand 8 states. [2018-01-24 11:52:12,307 WARN L143 SmtUtils]: Spent 108ms on a formula simplification that was a NOOP. DAG size: 8 [2018-01-24 11:52:12,606 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-24 11:52:12,607 INFO L93 Difference]: Finished difference Result 213 states and 223 transitions. [2018-01-24 11:52:12,607 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-01-24 11:52:12,607 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 25 [2018-01-24 11:52:12,607 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-24 11:52:12,609 INFO L225 Difference]: With dead ends: 213 [2018-01-24 11:52:12,609 INFO L226 Difference]: Without dead ends: 212 [2018-01-24 11:52:12,609 INFO L525 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=42, Invalid=114, Unknown=0, NotChecked=0, Total=156 [2018-01-24 11:52:12,610 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 212 states. [2018-01-24 11:52:12,621 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 212 to 210. [2018-01-24 11:52:12,621 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 210 states. [2018-01-24 11:52:12,623 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 210 states to 210 states and 221 transitions. [2018-01-24 11:52:12,623 INFO L78 Accepts]: Start accepts. Automaton has 210 states and 221 transitions. Word has length 25 [2018-01-24 11:52:12,624 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-24 11:52:12,624 INFO L432 AbstractCegarLoop]: Abstraction has 210 states and 221 transitions. [2018-01-24 11:52:12,624 INFO L433 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-01-24 11:52:12,624 INFO L276 IsEmpty]: Start isEmpty. Operand 210 states and 221 transitions. [2018-01-24 11:52:12,625 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2018-01-24 11:52:12,625 INFO L314 BasicCegarLoop]: Found error trace [2018-01-24 11:52:12,625 INFO L322 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-24 11:52:12,625 INFO L371 AbstractCegarLoop]: === Iteration 13 === [__list_addErr1RequiresViolation, __list_addErr3RequiresViolation, __list_addErr0RequiresViolation, __list_addErr2RequiresViolation, __list_addErr4RequiresViolation, __list_addErr7RequiresViolation, __list_addErr5RequiresViolation, __list_addErr6RequiresViolation, ULTIMATE.initErr3RequiresViolation, ULTIMATE.initErr1RequiresViolation, ULTIMATE.initErr2RequiresViolation, ULTIMATE.initErr0RequiresViolation, val_from_nodeErr0RequiresViolation, val_from_nodeErr1RequiresViolation, list_moveErr0RequiresViolation, list_moveErr3RequiresViolation, list_moveErr2RequiresViolation, list_moveErr1RequiresViolation, gl_sortErr16RequiresViolation, gl_sortErr4RequiresViolation, gl_sortErr12RequiresViolation, gl_sortErr5RequiresViolation, gl_sortErr0RequiresViolation, gl_sortErr11RequiresViolation, gl_sortErr9RequiresViolation, gl_sortErr2RequiresViolation, gl_sortErr18RequiresViolation, gl_sortErr7RequiresViolation, gl_sortErr13RequiresViolation, gl_sortErr14RequiresViolation, gl_sortErr19RequiresViolation, gl_sortErr6RequiresViolation, gl_sortErr1RequiresViolation, gl_sortErr17RequiresViolation, gl_sortErr15RequiresViolation, gl_sortErr10RequiresViolation, gl_sortErr8RequiresViolation, gl_sortErr3RequiresViolation, list_addErr1RequiresViolation, list_addErr0RequiresViolation, list_emptyErr0RequiresViolation, list_emptyErr1RequiresViolation, __list_delErr0RequiresViolation, __list_delErr2RequiresViolation, __list_delErr3RequiresViolation, __list_delErr1RequiresViolation, mainErr0EnsuresViolation, gl_insertErr0RequiresViolation, gl_insertErr1RequiresViolation, gl_seek_maxErr0RequiresViolation, gl_seek_maxErr2RequiresViolation, gl_seek_maxErr1RequiresViolation, gl_seek_maxErr5RequiresViolation, gl_seek_maxErr3RequiresViolation, gl_seek_maxErr4RequiresViolation, gl_destroyErr4RequiresViolation, gl_destroyErr2RequiresViolation, gl_destroyErr0RequiresViolation, gl_destroyErr1RequiresViolation, gl_destroyErr6RequiresViolation, gl_destroyErr7RequiresViolation, gl_destroyErr3RequiresViolation, gl_destroyErr5RequiresViolation]=== [2018-01-24 11:52:12,626 INFO L82 PathProgramCache]: Analyzing trace with hash 1201783090, now seen corresponding path program 1 times [2018-01-24 11:52:12,626 INFO L209 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-01-24 11:52:12,626 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-01-24 11:52:12,627 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 11:52:12,627 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-24 11:52:12,627 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 11:52:12,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-24 11:52:12,643 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-24 11:52:12,707 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-24 11:52:12,708 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-24 11:52:12,708 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2018-01-24 11:52:12,708 INFO L409 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-01-24 11:52:12,709 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-01-24 11:52:12,709 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2018-01-24 11:52:12,709 INFO L87 Difference]: Start difference. First operand 210 states and 221 transitions. Second operand 9 states. [2018-01-24 11:52:13,125 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-24 11:52:13,125 INFO L93 Difference]: Finished difference Result 210 states and 221 transitions. [2018-01-24 11:52:13,126 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-01-24 11:52:13,126 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 41 [2018-01-24 11:52:13,126 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-24 11:52:13,128 INFO L225 Difference]: With dead ends: 210 [2018-01-24 11:52:13,128 INFO L226 Difference]: Without dead ends: 209 [2018-01-24 11:52:13,128 INFO L525 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=50, Invalid=190, Unknown=0, NotChecked=0, Total=240 [2018-01-24 11:52:13,129 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 209 states. [2018-01-24 11:52:13,138 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 209 to 209. [2018-01-24 11:52:13,139 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 209 states. [2018-01-24 11:52:13,140 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 209 states to 209 states and 220 transitions. [2018-01-24 11:52:13,140 INFO L78 Accepts]: Start accepts. Automaton has 209 states and 220 transitions. Word has length 41 [2018-01-24 11:52:13,140 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-24 11:52:13,140 INFO L432 AbstractCegarLoop]: Abstraction has 209 states and 220 transitions. [2018-01-24 11:52:13,140 INFO L433 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-01-24 11:52:13,140 INFO L276 IsEmpty]: Start isEmpty. Operand 209 states and 220 transitions. [2018-01-24 11:52:13,141 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2018-01-24 11:52:13,141 INFO L314 BasicCegarLoop]: Found error trace [2018-01-24 11:52:13,141 INFO L322 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-24 11:52:13,142 INFO L371 AbstractCegarLoop]: === Iteration 14 === [__list_addErr1RequiresViolation, __list_addErr3RequiresViolation, __list_addErr0RequiresViolation, __list_addErr2RequiresViolation, __list_addErr4RequiresViolation, __list_addErr7RequiresViolation, __list_addErr5RequiresViolation, __list_addErr6RequiresViolation, ULTIMATE.initErr3RequiresViolation, ULTIMATE.initErr1RequiresViolation, ULTIMATE.initErr2RequiresViolation, ULTIMATE.initErr0RequiresViolation, val_from_nodeErr0RequiresViolation, val_from_nodeErr1RequiresViolation, list_moveErr0RequiresViolation, list_moveErr3RequiresViolation, list_moveErr2RequiresViolation, list_moveErr1RequiresViolation, gl_sortErr16RequiresViolation, gl_sortErr4RequiresViolation, gl_sortErr12RequiresViolation, gl_sortErr5RequiresViolation, gl_sortErr0RequiresViolation, gl_sortErr11RequiresViolation, gl_sortErr9RequiresViolation, gl_sortErr2RequiresViolation, gl_sortErr18RequiresViolation, gl_sortErr7RequiresViolation, gl_sortErr13RequiresViolation, gl_sortErr14RequiresViolation, gl_sortErr19RequiresViolation, gl_sortErr6RequiresViolation, gl_sortErr1RequiresViolation, gl_sortErr17RequiresViolation, gl_sortErr15RequiresViolation, gl_sortErr10RequiresViolation, gl_sortErr8RequiresViolation, gl_sortErr3RequiresViolation, list_addErr1RequiresViolation, list_addErr0RequiresViolation, list_emptyErr0RequiresViolation, list_emptyErr1RequiresViolation, __list_delErr0RequiresViolation, __list_delErr2RequiresViolation, __list_delErr3RequiresViolation, __list_delErr1RequiresViolation, mainErr0EnsuresViolation, gl_insertErr0RequiresViolation, gl_insertErr1RequiresViolation, gl_seek_maxErr0RequiresViolation, gl_seek_maxErr2RequiresViolation, gl_seek_maxErr1RequiresViolation, gl_seek_maxErr5RequiresViolation, gl_seek_maxErr3RequiresViolation, gl_seek_maxErr4RequiresViolation, gl_destroyErr4RequiresViolation, gl_destroyErr2RequiresViolation, gl_destroyErr0RequiresViolation, gl_destroyErr1RequiresViolation, gl_destroyErr6RequiresViolation, gl_destroyErr7RequiresViolation, gl_destroyErr3RequiresViolation, gl_destroyErr5RequiresViolation]=== [2018-01-24 11:52:13,142 INFO L82 PathProgramCache]: Analyzing trace with hash 1201783091, now seen corresponding path program 1 times [2018-01-24 11:52:13,142 INFO L209 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-01-24 11:52:13,142 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-01-24 11:52:13,143 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 11:52:13,143 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-24 11:52:13,143 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 11:52:13,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-24 11:52:13,158 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-24 11:52:13,392 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-24 11:52:13,392 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-24 11:52:13,392 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2018-01-24 11:52:13,393 INFO L409 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-01-24 11:52:13,393 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-01-24 11:52:13,393 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2018-01-24 11:52:13,393 INFO L87 Difference]: Start difference. First operand 209 states and 220 transitions. Second operand 11 states. [2018-01-24 11:52:13,961 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-24 11:52:13,961 INFO L93 Difference]: Finished difference Result 209 states and 220 transitions. [2018-01-24 11:52:13,961 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-01-24 11:52:13,961 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 41 [2018-01-24 11:52:13,962 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-24 11:52:13,963 INFO L225 Difference]: With dead ends: 209 [2018-01-24 11:52:13,963 INFO L226 Difference]: Without dead ends: 208 [2018-01-24 11:52:13,963 INFO L525 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=70, Invalid=236, Unknown=0, NotChecked=0, Total=306 [2018-01-24 11:52:13,964 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 208 states. [2018-01-24 11:52:13,978 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 208 to 208. [2018-01-24 11:52:13,979 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 208 states. [2018-01-24 11:52:13,980 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 208 states to 208 states and 219 transitions. [2018-01-24 11:52:13,980 INFO L78 Accepts]: Start accepts. Automaton has 208 states and 219 transitions. Word has length 41 [2018-01-24 11:52:13,981 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-24 11:52:13,981 INFO L432 AbstractCegarLoop]: Abstraction has 208 states and 219 transitions. [2018-01-24 11:52:13,981 INFO L433 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-01-24 11:52:13,981 INFO L276 IsEmpty]: Start isEmpty. Operand 208 states and 219 transitions. [2018-01-24 11:52:13,982 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2018-01-24 11:52:13,982 INFO L314 BasicCegarLoop]: Found error trace [2018-01-24 11:52:13,982 INFO L322 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-24 11:52:13,982 INFO L371 AbstractCegarLoop]: === Iteration 15 === [__list_addErr1RequiresViolation, __list_addErr3RequiresViolation, __list_addErr0RequiresViolation, __list_addErr2RequiresViolation, __list_addErr4RequiresViolation, __list_addErr7RequiresViolation, __list_addErr5RequiresViolation, __list_addErr6RequiresViolation, ULTIMATE.initErr3RequiresViolation, ULTIMATE.initErr1RequiresViolation, ULTIMATE.initErr2RequiresViolation, ULTIMATE.initErr0RequiresViolation, val_from_nodeErr0RequiresViolation, val_from_nodeErr1RequiresViolation, list_moveErr0RequiresViolation, list_moveErr3RequiresViolation, list_moveErr2RequiresViolation, list_moveErr1RequiresViolation, gl_sortErr16RequiresViolation, gl_sortErr4RequiresViolation, gl_sortErr12RequiresViolation, gl_sortErr5RequiresViolation, gl_sortErr0RequiresViolation, gl_sortErr11RequiresViolation, gl_sortErr9RequiresViolation, gl_sortErr2RequiresViolation, gl_sortErr18RequiresViolation, gl_sortErr7RequiresViolation, gl_sortErr13RequiresViolation, gl_sortErr14RequiresViolation, gl_sortErr19RequiresViolation, gl_sortErr6RequiresViolation, gl_sortErr1RequiresViolation, gl_sortErr17RequiresViolation, gl_sortErr15RequiresViolation, gl_sortErr10RequiresViolation, gl_sortErr8RequiresViolation, gl_sortErr3RequiresViolation, list_addErr1RequiresViolation, list_addErr0RequiresViolation, list_emptyErr0RequiresViolation, list_emptyErr1RequiresViolation, __list_delErr0RequiresViolation, __list_delErr2RequiresViolation, __list_delErr3RequiresViolation, __list_delErr1RequiresViolation, mainErr0EnsuresViolation, gl_insertErr0RequiresViolation, gl_insertErr1RequiresViolation, gl_seek_maxErr0RequiresViolation, gl_seek_maxErr2RequiresViolation, gl_seek_maxErr1RequiresViolation, gl_seek_maxErr5RequiresViolation, gl_seek_maxErr3RequiresViolation, gl_seek_maxErr4RequiresViolation, gl_destroyErr4RequiresViolation, gl_destroyErr2RequiresViolation, gl_destroyErr0RequiresViolation, gl_destroyErr1RequiresViolation, gl_destroyErr6RequiresViolation, gl_destroyErr7RequiresViolation, gl_destroyErr3RequiresViolation, gl_destroyErr5RequiresViolation]=== [2018-01-24 11:52:13,982 INFO L82 PathProgramCache]: Analyzing trace with hash 856902849, now seen corresponding path program 1 times [2018-01-24 11:52:13,982 INFO L209 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-01-24 11:52:13,982 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-01-24 11:52:13,983 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 11:52:13,983 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-24 11:52:13,983 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 11:52:14,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-24 11:52:14,017 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-24 11:52:14,438 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 6 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-24 11:52:14,439 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-01-24 11:52:14,439 INFO L209 onRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-01-24 11:52:14,444 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-24 11:52:14,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-24 11:52:14,516 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-01-24 11:52:15,541 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 8 [2018-01-24 11:52:15,558 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-01-24 11:52:15,558 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-01-24 11:52:15,563 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-01-24 11:52:15,600 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-01-24 11:52:15,600 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:20, output treesize:16 [2018-01-24 11:52:16,058 INFO L700 Elim1Store]: detected not equals via solver [2018-01-24 11:52:16,060 INFO L700 Elim1Store]: detected not equals via solver [2018-01-24 11:52:16,062 INFO L700 Elim1Store]: detected not equals via solver [2018-01-24 11:52:16,064 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 42 [2018-01-24 11:52:16,065 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-01-24 11:52:16,074 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-01-24 11:52:16,074 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:29, output treesize:35 [2018-01-24 11:52:16,453 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 34 [2018-01-24 11:52:16,460 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 1 [2018-01-24 11:52:16,460 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-01-24 11:52:16,494 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-01-24 11:52:16,510 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-01-24 11:52:16,510 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:50, output treesize:35 [2018-01-24 11:52:16,836 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 19 [2018-01-24 11:52:16,838 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 10 [2018-01-24 11:52:16,839 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-01-24 11:52:16,841 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-01-24 11:52:16,849 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2018-01-24 11:52:16,849 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:39, output treesize:24 [2018-01-24 11:52:16,978 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 7 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-24 11:52:17,010 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-01-24 11:52:17,010 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 18] total 34 [2018-01-24 11:52:17,011 INFO L409 AbstractCegarLoop]: Interpolant automaton has 35 states [2018-01-24 11:52:17,011 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2018-01-24 11:52:17,012 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=121, Invalid=1069, Unknown=0, NotChecked=0, Total=1190 [2018-01-24 11:52:17,012 INFO L87 Difference]: Start difference. First operand 208 states and 219 transitions. Second operand 35 states. [2018-01-24 11:52:20,926 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-24 11:52:20,926 INFO L93 Difference]: Finished difference Result 300 states and 315 transitions. [2018-01-24 11:52:20,926 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2018-01-24 11:52:20,927 INFO L78 Accepts]: Start accepts. Automaton has 35 states. Word has length 48 [2018-01-24 11:52:20,927 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-24 11:52:20,929 INFO L225 Difference]: With dead ends: 300 [2018-01-24 11:52:20,929 INFO L226 Difference]: Without dead ends: 299 [2018-01-24 11:52:20,930 INFO L525 BasicCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 31 SyntacticMatches, 1 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 411 ImplicationChecksByTransitivity, 3.3s TimeCoverageRelationStatistics Valid=289, Invalid=1967, Unknown=0, NotChecked=0, Total=2256 [2018-01-24 11:52:20,930 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 299 states. [2018-01-24 11:52:20,959 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 299 to 217. [2018-01-24 11:52:20,960 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 217 states. [2018-01-24 11:52:20,961 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 217 states to 217 states and 227 transitions. [2018-01-24 11:52:20,962 INFO L78 Accepts]: Start accepts. Automaton has 217 states and 227 transitions. Word has length 48 [2018-01-24 11:52:20,962 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-24 11:52:20,963 INFO L432 AbstractCegarLoop]: Abstraction has 217 states and 227 transitions. [2018-01-24 11:52:20,963 INFO L433 AbstractCegarLoop]: Interpolant automaton has 35 states. [2018-01-24 11:52:20,963 INFO L276 IsEmpty]: Start isEmpty. Operand 217 states and 227 transitions. [2018-01-24 11:52:20,964 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2018-01-24 11:52:20,964 INFO L314 BasicCegarLoop]: Found error trace [2018-01-24 11:52:20,964 INFO L322 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-24 11:52:20,965 INFO L371 AbstractCegarLoop]: === Iteration 16 === [__list_addErr1RequiresViolation, __list_addErr3RequiresViolation, __list_addErr0RequiresViolation, __list_addErr2RequiresViolation, __list_addErr4RequiresViolation, __list_addErr7RequiresViolation, __list_addErr5RequiresViolation, __list_addErr6RequiresViolation, ULTIMATE.initErr3RequiresViolation, ULTIMATE.initErr1RequiresViolation, ULTIMATE.initErr2RequiresViolation, ULTIMATE.initErr0RequiresViolation, val_from_nodeErr0RequiresViolation, val_from_nodeErr1RequiresViolation, list_moveErr0RequiresViolation, list_moveErr3RequiresViolation, list_moveErr2RequiresViolation, list_moveErr1RequiresViolation, gl_sortErr16RequiresViolation, gl_sortErr4RequiresViolation, gl_sortErr12RequiresViolation, gl_sortErr5RequiresViolation, gl_sortErr0RequiresViolation, gl_sortErr11RequiresViolation, gl_sortErr9RequiresViolation, gl_sortErr2RequiresViolation, gl_sortErr18RequiresViolation, gl_sortErr7RequiresViolation, gl_sortErr13RequiresViolation, gl_sortErr14RequiresViolation, gl_sortErr19RequiresViolation, gl_sortErr6RequiresViolation, gl_sortErr1RequiresViolation, gl_sortErr17RequiresViolation, gl_sortErr15RequiresViolation, gl_sortErr10RequiresViolation, gl_sortErr8RequiresViolation, gl_sortErr3RequiresViolation, list_addErr1RequiresViolation, list_addErr0RequiresViolation, list_emptyErr0RequiresViolation, list_emptyErr1RequiresViolation, __list_delErr0RequiresViolation, __list_delErr2RequiresViolation, __list_delErr3RequiresViolation, __list_delErr1RequiresViolation, mainErr0EnsuresViolation, gl_insertErr0RequiresViolation, gl_insertErr1RequiresViolation, gl_seek_maxErr0RequiresViolation, gl_seek_maxErr2RequiresViolation, gl_seek_maxErr1RequiresViolation, gl_seek_maxErr5RequiresViolation, gl_seek_maxErr3RequiresViolation, gl_seek_maxErr4RequiresViolation, gl_destroyErr4RequiresViolation, gl_destroyErr2RequiresViolation, gl_destroyErr0RequiresViolation, gl_destroyErr1RequiresViolation, gl_destroyErr6RequiresViolation, gl_destroyErr7RequiresViolation, gl_destroyErr3RequiresViolation, gl_destroyErr5RequiresViolation]=== [2018-01-24 11:52:20,965 INFO L82 PathProgramCache]: Analyzing trace with hash 856902850, now seen corresponding path program 1 times [2018-01-24 11:52:20,965 INFO L209 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-01-24 11:52:20,965 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-01-24 11:52:20,966 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 11:52:20,966 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-24 11:52:20,966 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 11:52:21,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-24 11:52:21,003 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-24 11:52:21,554 WARN L146 SmtUtils]: Spent 192ms on a formula simplification. DAG size of input: 13 DAG size of output 9 [2018-01-24 11:52:21,916 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 6 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-24 11:52:21,917 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-01-24 11:52:21,917 INFO L209 onRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-01-24 11:52:21,924 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-24 11:52:21,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-24 11:52:21,978 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-01-24 11:52:22,049 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-01-24 11:52:22,049 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-01-24 11:52:22,053 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-01-24 11:52:22,053 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:13, output treesize:12 [2018-01-24 11:52:22,288 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 8 [2018-01-24 11:52:22,290 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-01-24 11:52:22,291 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-01-24 11:52:22,294 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-01-24 11:52:22,306 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 8 [2018-01-24 11:52:22,308 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-01-24 11:52:22,309 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-01-24 11:52:22,311 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-01-24 11:52:22,318 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2018-01-24 11:52:22,319 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 4 variables, input treesize:36, output treesize:28 [2018-01-24 11:52:22,440 INFO L700 Elim1Store]: detected not equals via solver [2018-01-24 11:52:22,441 INFO L700 Elim1Store]: detected not equals via solver [2018-01-24 11:52:22,441 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 4 [2018-01-24 11:52:22,442 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-01-24 11:52:22,451 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 15 [2018-01-24 11:52:22,451 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-01-24 11:52:22,458 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-01-24 11:52:22,458 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:43, output treesize:36 [2018-01-24 11:52:22,528 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 31 [2018-01-24 11:52:22,530 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 1 [2018-01-24 11:52:22,530 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-01-24 11:52:22,534 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-01-24 11:52:22,547 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 26 [2018-01-24 11:52:22,549 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 1 [2018-01-24 11:52:22,549 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-01-24 11:52:22,551 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-01-24 11:52:22,558 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-01-24 11:52:22,558 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 4 variables, input treesize:66, output treesize:36 [2018-01-24 11:52:22,671 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 13 [2018-01-24 11:52:22,673 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 5 [2018-01-24 11:52:22,673 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-01-24 11:52:22,675 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-01-24 11:52:22,692 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 16 [2018-01-24 11:52:22,695 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 7 [2018-01-24 11:52:22,696 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-01-24 11:52:22,699 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-01-24 11:52:22,705 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-01-24 11:52:22,705 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 4 variables, input treesize:47, output treesize:17 [2018-01-24 11:52:22,771 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 4 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-24 11:52:22,792 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-01-24 11:52:22,792 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 21] total 36 [2018-01-24 11:52:22,792 INFO L409 AbstractCegarLoop]: Interpolant automaton has 37 states [2018-01-24 11:52:22,792 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 37 interpolants. [2018-01-24 11:52:22,793 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=128, Invalid=1204, Unknown=0, NotChecked=0, Total=1332 [2018-01-24 11:52:22,793 INFO L87 Difference]: Start difference. First operand 217 states and 227 transitions. Second operand 37 states. [2018-01-24 11:52:23,734 WARN L146 SmtUtils]: Spent 147ms on a formula simplification. DAG size of input: 35 DAG size of output 31 [2018-01-24 11:52:23,984 WARN L146 SmtUtils]: Spent 128ms on a formula simplification. DAG size of input: 43 DAG size of output 39 [2018-01-24 11:52:24,168 WARN L146 SmtUtils]: Spent 124ms on a formula simplification. DAG size of input: 46 DAG size of output 40 [2018-01-24 11:52:24,407 WARN L146 SmtUtils]: Spent 155ms on a formula simplification. DAG size of input: 48 DAG size of output 46 [2018-01-24 11:52:26,414 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-24 11:52:26,414 INFO L93 Difference]: Finished difference Result 261 states and 274 transitions. [2018-01-24 11:52:26,414 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2018-01-24 11:52:26,414 INFO L78 Accepts]: Start accepts. Automaton has 37 states. Word has length 48 [2018-01-24 11:52:26,415 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-24 11:52:26,416 INFO L225 Difference]: With dead ends: 261 [2018-01-24 11:52:26,416 INFO L226 Difference]: Without dead ends: 260 [2018-01-24 11:52:26,417 INFO L525 BasicCegarLoop]: 0 DeclaredPredicates, 90 GetRequests, 32 SyntacticMatches, 2 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 644 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=425, Invalid=2881, Unknown=0, NotChecked=0, Total=3306 [2018-01-24 11:52:26,417 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 260 states. [2018-01-24 11:52:26,430 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 260 to 194. [2018-01-24 11:52:26,430 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 194 states. [2018-01-24 11:52:26,431 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 194 states to 194 states and 203 transitions. [2018-01-24 11:52:26,431 INFO L78 Accepts]: Start accepts. Automaton has 194 states and 203 transitions. Word has length 48 [2018-01-24 11:52:26,431 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-24 11:52:26,431 INFO L432 AbstractCegarLoop]: Abstraction has 194 states and 203 transitions. [2018-01-24 11:52:26,432 INFO L433 AbstractCegarLoop]: Interpolant automaton has 37 states. [2018-01-24 11:52:26,432 INFO L276 IsEmpty]: Start isEmpty. Operand 194 states and 203 transitions. [2018-01-24 11:52:26,433 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2018-01-24 11:52:26,433 INFO L314 BasicCegarLoop]: Found error trace [2018-01-24 11:52:26,433 INFO L322 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-24 11:52:26,433 INFO L371 AbstractCegarLoop]: === Iteration 17 === [__list_addErr1RequiresViolation, __list_addErr3RequiresViolation, __list_addErr0RequiresViolation, __list_addErr2RequiresViolation, __list_addErr4RequiresViolation, __list_addErr7RequiresViolation, __list_addErr5RequiresViolation, __list_addErr6RequiresViolation, ULTIMATE.initErr3RequiresViolation, ULTIMATE.initErr1RequiresViolation, ULTIMATE.initErr2RequiresViolation, ULTIMATE.initErr0RequiresViolation, val_from_nodeErr0RequiresViolation, val_from_nodeErr1RequiresViolation, list_moveErr0RequiresViolation, list_moveErr3RequiresViolation, list_moveErr2RequiresViolation, list_moveErr1RequiresViolation, gl_sortErr16RequiresViolation, gl_sortErr4RequiresViolation, gl_sortErr12RequiresViolation, gl_sortErr5RequiresViolation, gl_sortErr0RequiresViolation, gl_sortErr11RequiresViolation, gl_sortErr9RequiresViolation, gl_sortErr2RequiresViolation, gl_sortErr18RequiresViolation, gl_sortErr7RequiresViolation, gl_sortErr13RequiresViolation, gl_sortErr14RequiresViolation, gl_sortErr19RequiresViolation, gl_sortErr6RequiresViolation, gl_sortErr1RequiresViolation, gl_sortErr17RequiresViolation, gl_sortErr15RequiresViolation, gl_sortErr10RequiresViolation, gl_sortErr8RequiresViolation, gl_sortErr3RequiresViolation, list_addErr1RequiresViolation, list_addErr0RequiresViolation, list_emptyErr0RequiresViolation, list_emptyErr1RequiresViolation, __list_delErr0RequiresViolation, __list_delErr2RequiresViolation, __list_delErr3RequiresViolation, __list_delErr1RequiresViolation, mainErr0EnsuresViolation, gl_insertErr0RequiresViolation, gl_insertErr1RequiresViolation, gl_seek_maxErr0RequiresViolation, gl_seek_maxErr2RequiresViolation, gl_seek_maxErr1RequiresViolation, gl_seek_maxErr5RequiresViolation, gl_seek_maxErr3RequiresViolation, gl_seek_maxErr4RequiresViolation, gl_destroyErr4RequiresViolation, gl_destroyErr2RequiresViolation, gl_destroyErr0RequiresViolation, gl_destroyErr1RequiresViolation, gl_destroyErr6RequiresViolation, gl_destroyErr7RequiresViolation, gl_destroyErr3RequiresViolation, gl_destroyErr5RequiresViolation]=== [2018-01-24 11:52:26,433 INFO L82 PathProgramCache]: Analyzing trace with hash -1348377315, now seen corresponding path program 1 times [2018-01-24 11:52:26,434 INFO L209 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-01-24 11:52:26,434 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-01-24 11:52:26,434 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 11:52:26,435 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-24 11:52:26,435 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 11:52:26,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-24 11:52:26,450 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-24 11:52:26,475 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-24 11:52:26,476 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-24 11:52:26,476 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-01-24 11:52:26,476 INFO L409 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-01-24 11:52:26,476 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-01-24 11:52:26,476 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-01-24 11:52:26,477 INFO L87 Difference]: Start difference. First operand 194 states and 203 transitions. Second operand 3 states. [2018-01-24 11:52:26,594 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-24 11:52:26,594 INFO L93 Difference]: Finished difference Result 194 states and 203 transitions. [2018-01-24 11:52:26,594 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-01-24 11:52:26,595 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 48 [2018-01-24 11:52:26,595 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-24 11:52:26,596 INFO L225 Difference]: With dead ends: 194 [2018-01-24 11:52:26,596 INFO L226 Difference]: Without dead ends: 188 [2018-01-24 11:52:26,596 INFO L525 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-01-24 11:52:26,596 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 188 states. [2018-01-24 11:52:26,607 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 188 to 188. [2018-01-24 11:52:26,607 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 188 states. [2018-01-24 11:52:26,608 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 188 states to 188 states and 197 transitions. [2018-01-24 11:52:26,608 INFO L78 Accepts]: Start accepts. Automaton has 188 states and 197 transitions. Word has length 48 [2018-01-24 11:52:26,608 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-24 11:52:26,608 INFO L432 AbstractCegarLoop]: Abstraction has 188 states and 197 transitions. [2018-01-24 11:52:26,608 INFO L433 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-01-24 11:52:26,608 INFO L276 IsEmpty]: Start isEmpty. Operand 188 states and 197 transitions. [2018-01-24 11:52:26,608 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2018-01-24 11:52:26,609 INFO L314 BasicCegarLoop]: Found error trace [2018-01-24 11:52:26,609 INFO L322 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-24 11:52:26,609 INFO L371 AbstractCegarLoop]: === Iteration 18 === [__list_addErr1RequiresViolation, __list_addErr3RequiresViolation, __list_addErr0RequiresViolation, __list_addErr2RequiresViolation, __list_addErr4RequiresViolation, __list_addErr7RequiresViolation, __list_addErr5RequiresViolation, __list_addErr6RequiresViolation, ULTIMATE.initErr3RequiresViolation, ULTIMATE.initErr1RequiresViolation, ULTIMATE.initErr2RequiresViolation, ULTIMATE.initErr0RequiresViolation, val_from_nodeErr0RequiresViolation, val_from_nodeErr1RequiresViolation, list_moveErr0RequiresViolation, list_moveErr3RequiresViolation, list_moveErr2RequiresViolation, list_moveErr1RequiresViolation, gl_sortErr16RequiresViolation, gl_sortErr4RequiresViolation, gl_sortErr12RequiresViolation, gl_sortErr5RequiresViolation, gl_sortErr0RequiresViolation, gl_sortErr11RequiresViolation, gl_sortErr9RequiresViolation, gl_sortErr2RequiresViolation, gl_sortErr18RequiresViolation, gl_sortErr7RequiresViolation, gl_sortErr13RequiresViolation, gl_sortErr14RequiresViolation, gl_sortErr19RequiresViolation, gl_sortErr6RequiresViolation, gl_sortErr1RequiresViolation, gl_sortErr17RequiresViolation, gl_sortErr15RequiresViolation, gl_sortErr10RequiresViolation, gl_sortErr8RequiresViolation, gl_sortErr3RequiresViolation, list_addErr1RequiresViolation, list_addErr0RequiresViolation, list_emptyErr0RequiresViolation, list_emptyErr1RequiresViolation, __list_delErr0RequiresViolation, __list_delErr2RequiresViolation, __list_delErr3RequiresViolation, __list_delErr1RequiresViolation, mainErr0EnsuresViolation, gl_insertErr0RequiresViolation, gl_insertErr1RequiresViolation, gl_seek_maxErr0RequiresViolation, gl_seek_maxErr2RequiresViolation, gl_seek_maxErr1RequiresViolation, gl_seek_maxErr5RequiresViolation, gl_seek_maxErr3RequiresViolation, gl_seek_maxErr4RequiresViolation, gl_destroyErr4RequiresViolation, gl_destroyErr2RequiresViolation, gl_destroyErr0RequiresViolation, gl_destroyErr1RequiresViolation, gl_destroyErr6RequiresViolation, gl_destroyErr7RequiresViolation, gl_destroyErr3RequiresViolation, gl_destroyErr5RequiresViolation]=== [2018-01-24 11:52:26,609 INFO L82 PathProgramCache]: Analyzing trace with hash -1348377314, now seen corresponding path program 1 times [2018-01-24 11:52:26,609 INFO L209 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-01-24 11:52:26,609 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-01-24 11:52:26,610 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 11:52:26,610 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-24 11:52:26,610 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 11:52:26,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-24 11:52:26,628 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-24 11:52:26,676 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-24 11:52:26,676 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-24 11:52:26,676 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-01-24 11:52:26,677 INFO L409 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-01-24 11:52:26,677 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-01-24 11:52:26,677 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-01-24 11:52:26,677 INFO L87 Difference]: Start difference. First operand 188 states and 197 transitions. Second operand 3 states. [2018-01-24 11:52:26,733 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-24 11:52:26,733 INFO L93 Difference]: Finished difference Result 188 states and 197 transitions. [2018-01-24 11:52:26,733 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-01-24 11:52:26,733 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 48 [2018-01-24 11:52:26,734 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-24 11:52:26,734 INFO L225 Difference]: With dead ends: 188 [2018-01-24 11:52:26,734 INFO L226 Difference]: Without dead ends: 182 [2018-01-24 11:52:26,735 INFO L525 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-01-24 11:52:26,735 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 182 states. [2018-01-24 11:52:26,750 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 182 to 182. [2018-01-24 11:52:26,751 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 182 states. [2018-01-24 11:52:26,752 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 182 states to 182 states and 191 transitions. [2018-01-24 11:52:26,752 INFO L78 Accepts]: Start accepts. Automaton has 182 states and 191 transitions. Word has length 48 [2018-01-24 11:52:26,752 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-24 11:52:26,752 INFO L432 AbstractCegarLoop]: Abstraction has 182 states and 191 transitions. [2018-01-24 11:52:26,752 INFO L433 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-01-24 11:52:26,753 INFO L276 IsEmpty]: Start isEmpty. Operand 182 states and 191 transitions. [2018-01-24 11:52:26,753 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2018-01-24 11:52:26,753 INFO L314 BasicCegarLoop]: Found error trace [2018-01-24 11:52:26,754 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, 1, 1, 1, 1, 1, 1, 1] [2018-01-24 11:52:26,754 INFO L371 AbstractCegarLoop]: === Iteration 19 === [__list_addErr1RequiresViolation, __list_addErr3RequiresViolation, __list_addErr0RequiresViolation, __list_addErr2RequiresViolation, __list_addErr4RequiresViolation, __list_addErr7RequiresViolation, __list_addErr5RequiresViolation, __list_addErr6RequiresViolation, ULTIMATE.initErr3RequiresViolation, ULTIMATE.initErr1RequiresViolation, ULTIMATE.initErr2RequiresViolation, ULTIMATE.initErr0RequiresViolation, val_from_nodeErr0RequiresViolation, val_from_nodeErr1RequiresViolation, list_moveErr0RequiresViolation, list_moveErr3RequiresViolation, list_moveErr2RequiresViolation, list_moveErr1RequiresViolation, gl_sortErr16RequiresViolation, gl_sortErr4RequiresViolation, gl_sortErr12RequiresViolation, gl_sortErr5RequiresViolation, gl_sortErr0RequiresViolation, gl_sortErr11RequiresViolation, gl_sortErr9RequiresViolation, gl_sortErr2RequiresViolation, gl_sortErr18RequiresViolation, gl_sortErr7RequiresViolation, gl_sortErr13RequiresViolation, gl_sortErr14RequiresViolation, gl_sortErr19RequiresViolation, gl_sortErr6RequiresViolation, gl_sortErr1RequiresViolation, gl_sortErr17RequiresViolation, gl_sortErr15RequiresViolation, gl_sortErr10RequiresViolation, gl_sortErr8RequiresViolation, gl_sortErr3RequiresViolation, list_addErr1RequiresViolation, list_addErr0RequiresViolation, list_emptyErr0RequiresViolation, list_emptyErr1RequiresViolation, __list_delErr0RequiresViolation, __list_delErr2RequiresViolation, __list_delErr3RequiresViolation, __list_delErr1RequiresViolation, mainErr0EnsuresViolation, gl_insertErr0RequiresViolation, gl_insertErr1RequiresViolation, gl_seek_maxErr0RequiresViolation, gl_seek_maxErr2RequiresViolation, gl_seek_maxErr1RequiresViolation, gl_seek_maxErr5RequiresViolation, gl_seek_maxErr3RequiresViolation, gl_seek_maxErr4RequiresViolation, gl_destroyErr4RequiresViolation, gl_destroyErr2RequiresViolation, gl_destroyErr0RequiresViolation, gl_destroyErr1RequiresViolation, gl_destroyErr6RequiresViolation, gl_destroyErr7RequiresViolation, gl_destroyErr3RequiresViolation, gl_destroyErr5RequiresViolation]=== [2018-01-24 11:52:26,754 INFO L82 PathProgramCache]: Analyzing trace with hash 1058765471, now seen corresponding path program 1 times [2018-01-24 11:52:26,754 INFO L209 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-01-24 11:52:26,754 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-01-24 11:52:26,755 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 11:52:26,755 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-24 11:52:26,755 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 11:52:26,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-24 11:52:26,771 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-24 11:52:26,921 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-24 11:52:26,921 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-24 11:52:26,921 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2018-01-24 11:52:26,922 INFO L409 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-01-24 11:52:26,922 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-01-24 11:52:26,922 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2018-01-24 11:52:26,922 INFO L87 Difference]: Start difference. First operand 182 states and 191 transitions. Second operand 11 states. [2018-01-24 11:52:27,918 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-24 11:52:27,918 INFO L93 Difference]: Finished difference Result 268 states and 285 transitions. [2018-01-24 11:52:27,918 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2018-01-24 11:52:27,918 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 55 [2018-01-24 11:52:27,919 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-24 11:52:27,920 INFO L225 Difference]: With dead ends: 268 [2018-01-24 11:52:27,920 INFO L226 Difference]: Without dead ends: 266 [2018-01-24 11:52:27,921 INFO L525 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=70, Invalid=350, Unknown=0, NotChecked=0, Total=420 [2018-01-24 11:52:27,921 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 266 states. [2018-01-24 11:52:27,936 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 266 to 188. [2018-01-24 11:52:27,937 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 188 states. [2018-01-24 11:52:27,937 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 188 states to 188 states and 200 transitions. [2018-01-24 11:52:27,937 INFO L78 Accepts]: Start accepts. Automaton has 188 states and 200 transitions. Word has length 55 [2018-01-24 11:52:27,938 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-24 11:52:27,938 INFO L432 AbstractCegarLoop]: Abstraction has 188 states and 200 transitions. [2018-01-24 11:52:27,938 INFO L433 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-01-24 11:52:27,938 INFO L276 IsEmpty]: Start isEmpty. Operand 188 states and 200 transitions. [2018-01-24 11:52:27,938 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2018-01-24 11:52:27,938 INFO L314 BasicCegarLoop]: Found error trace [2018-01-24 11:52:27,938 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, 1, 1, 1, 1, 1, 1, 1] [2018-01-24 11:52:27,938 INFO L371 AbstractCegarLoop]: === Iteration 20 === [__list_addErr1RequiresViolation, __list_addErr3RequiresViolation, __list_addErr0RequiresViolation, __list_addErr2RequiresViolation, __list_addErr4RequiresViolation, __list_addErr7RequiresViolation, __list_addErr5RequiresViolation, __list_addErr6RequiresViolation, ULTIMATE.initErr3RequiresViolation, ULTIMATE.initErr1RequiresViolation, ULTIMATE.initErr2RequiresViolation, ULTIMATE.initErr0RequiresViolation, val_from_nodeErr0RequiresViolation, val_from_nodeErr1RequiresViolation, list_moveErr0RequiresViolation, list_moveErr3RequiresViolation, list_moveErr2RequiresViolation, list_moveErr1RequiresViolation, gl_sortErr16RequiresViolation, gl_sortErr4RequiresViolation, gl_sortErr12RequiresViolation, gl_sortErr5RequiresViolation, gl_sortErr0RequiresViolation, gl_sortErr11RequiresViolation, gl_sortErr9RequiresViolation, gl_sortErr2RequiresViolation, gl_sortErr18RequiresViolation, gl_sortErr7RequiresViolation, gl_sortErr13RequiresViolation, gl_sortErr14RequiresViolation, gl_sortErr19RequiresViolation, gl_sortErr6RequiresViolation, gl_sortErr1RequiresViolation, gl_sortErr17RequiresViolation, gl_sortErr15RequiresViolation, gl_sortErr10RequiresViolation, gl_sortErr8RequiresViolation, gl_sortErr3RequiresViolation, list_addErr1RequiresViolation, list_addErr0RequiresViolation, list_emptyErr0RequiresViolation, list_emptyErr1RequiresViolation, __list_delErr0RequiresViolation, __list_delErr2RequiresViolation, __list_delErr3RequiresViolation, __list_delErr1RequiresViolation, mainErr0EnsuresViolation, gl_insertErr0RequiresViolation, gl_insertErr1RequiresViolation, gl_seek_maxErr0RequiresViolation, gl_seek_maxErr2RequiresViolation, gl_seek_maxErr1RequiresViolation, gl_seek_maxErr5RequiresViolation, gl_seek_maxErr3RequiresViolation, gl_seek_maxErr4RequiresViolation, gl_destroyErr4RequiresViolation, gl_destroyErr2RequiresViolation, gl_destroyErr0RequiresViolation, gl_destroyErr1RequiresViolation, gl_destroyErr6RequiresViolation, gl_destroyErr7RequiresViolation, gl_destroyErr3RequiresViolation, gl_destroyErr5RequiresViolation]=== [2018-01-24 11:52:27,939 INFO L82 PathProgramCache]: Analyzing trace with hash 1058765472, now seen corresponding path program 1 times [2018-01-24 11:52:27,939 INFO L209 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-01-24 11:52:27,939 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-01-24 11:52:27,939 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 11:52:27,939 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-24 11:52:27,939 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 11:52:27,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-24 11:52:27,952 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-24 11:52:28,335 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-24 11:52:28,335 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-24 11:52:28,335 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2018-01-24 11:52:28,336 INFO L409 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-01-24 11:52:28,336 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-01-24 11:52:28,336 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2018-01-24 11:52:28,336 INFO L87 Difference]: Start difference. First operand 188 states and 200 transitions. Second operand 12 states. [2018-01-24 11:52:29,372 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-24 11:52:29,372 INFO L93 Difference]: Finished difference Result 212 states and 222 transitions. [2018-01-24 11:52:29,372 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2018-01-24 11:52:29,372 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 55 [2018-01-24 11:52:29,373 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-24 11:52:29,373 INFO L225 Difference]: With dead ends: 212 [2018-01-24 11:52:29,373 INFO L226 Difference]: Without dead ends: 210 [2018-01-24 11:52:29,374 INFO L525 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 50 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=77, Invalid=429, Unknown=0, NotChecked=0, Total=506 [2018-01-24 11:52:29,374 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 210 states. [2018-01-24 11:52:29,393 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 210 to 191. [2018-01-24 11:52:29,393 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 191 states. [2018-01-24 11:52:29,394 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 191 states to 191 states and 202 transitions. [2018-01-24 11:52:29,394 INFO L78 Accepts]: Start accepts. Automaton has 191 states and 202 transitions. Word has length 55 [2018-01-24 11:52:29,395 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-24 11:52:29,395 INFO L432 AbstractCegarLoop]: Abstraction has 191 states and 202 transitions. [2018-01-24 11:52:29,395 INFO L433 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-01-24 11:52:29,395 INFO L276 IsEmpty]: Start isEmpty. Operand 191 states and 202 transitions. [2018-01-24 11:52:29,396 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2018-01-24 11:52:29,396 INFO L314 BasicCegarLoop]: Found error trace [2018-01-24 11:52:29,396 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-24 11:52:29,396 INFO L371 AbstractCegarLoop]: === Iteration 21 === [__list_addErr1RequiresViolation, __list_addErr3RequiresViolation, __list_addErr0RequiresViolation, __list_addErr2RequiresViolation, __list_addErr4RequiresViolation, __list_addErr7RequiresViolation, __list_addErr5RequiresViolation, __list_addErr6RequiresViolation, ULTIMATE.initErr3RequiresViolation, ULTIMATE.initErr1RequiresViolation, ULTIMATE.initErr2RequiresViolation, ULTIMATE.initErr0RequiresViolation, val_from_nodeErr0RequiresViolation, val_from_nodeErr1RequiresViolation, list_moveErr0RequiresViolation, list_moveErr3RequiresViolation, list_moveErr2RequiresViolation, list_moveErr1RequiresViolation, gl_sortErr16RequiresViolation, gl_sortErr4RequiresViolation, gl_sortErr12RequiresViolation, gl_sortErr5RequiresViolation, gl_sortErr0RequiresViolation, gl_sortErr11RequiresViolation, gl_sortErr9RequiresViolation, gl_sortErr2RequiresViolation, gl_sortErr18RequiresViolation, gl_sortErr7RequiresViolation, gl_sortErr13RequiresViolation, gl_sortErr14RequiresViolation, gl_sortErr19RequiresViolation, gl_sortErr6RequiresViolation, gl_sortErr1RequiresViolation, gl_sortErr17RequiresViolation, gl_sortErr15RequiresViolation, gl_sortErr10RequiresViolation, gl_sortErr8RequiresViolation, gl_sortErr3RequiresViolation, list_addErr1RequiresViolation, list_addErr0RequiresViolation, list_emptyErr0RequiresViolation, list_emptyErr1RequiresViolation, __list_delErr0RequiresViolation, __list_delErr2RequiresViolation, __list_delErr3RequiresViolation, __list_delErr1RequiresViolation, mainErr0EnsuresViolation, gl_insertErr0RequiresViolation, gl_insertErr1RequiresViolation, gl_seek_maxErr0RequiresViolation, gl_seek_maxErr2RequiresViolation, gl_seek_maxErr1RequiresViolation, gl_seek_maxErr5RequiresViolation, gl_seek_maxErr3RequiresViolation, gl_seek_maxErr4RequiresViolation, gl_destroyErr4RequiresViolation, gl_destroyErr2RequiresViolation, gl_destroyErr0RequiresViolation, gl_destroyErr1RequiresViolation, gl_destroyErr6RequiresViolation, gl_destroyErr7RequiresViolation, gl_destroyErr3RequiresViolation, gl_destroyErr5RequiresViolation]=== [2018-01-24 11:52:29,396 INFO L82 PathProgramCache]: Analyzing trace with hash -558928184, now seen corresponding path program 1 times [2018-01-24 11:52:29,396 INFO L209 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-01-24 11:52:29,396 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-01-24 11:52:29,397 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 11:52:29,397 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-24 11:52:29,397 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 11:52:29,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-24 11:52:29,413 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-24 11:52:29,971 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-24 11:52:29,971 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-24 11:52:29,971 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2018-01-24 11:52:29,971 INFO L409 AbstractCegarLoop]: Interpolant automaton has 16 states [2018-01-24 11:52:29,972 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2018-01-24 11:52:29,972 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2018-01-24 11:52:29,972 INFO L87 Difference]: Start difference. First operand 191 states and 202 transitions. Second operand 16 states. [2018-01-24 11:52:31,502 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-24 11:52:31,503 INFO L93 Difference]: Finished difference Result 222 states and 238 transitions. [2018-01-24 11:52:31,503 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2018-01-24 11:52:31,503 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 58 [2018-01-24 11:52:31,503 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-24 11:52:31,504 INFO L225 Difference]: With dead ends: 222 [2018-01-24 11:52:31,504 INFO L226 Difference]: Without dead ends: 217 [2018-01-24 11:52:31,505 INFO L525 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 339 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=287, Invalid=1605, Unknown=0, NotChecked=0, Total=1892 [2018-01-24 11:52:31,505 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 217 states. [2018-01-24 11:52:31,521 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 217 to 189. [2018-01-24 11:52:31,521 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 189 states. [2018-01-24 11:52:31,522 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 189 states to 189 states and 199 transitions. [2018-01-24 11:52:31,522 INFO L78 Accepts]: Start accepts. Automaton has 189 states and 199 transitions. Word has length 58 [2018-01-24 11:52:31,522 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-24 11:52:31,523 INFO L432 AbstractCegarLoop]: Abstraction has 189 states and 199 transitions. [2018-01-24 11:52:31,523 INFO L433 AbstractCegarLoop]: Interpolant automaton has 16 states. [2018-01-24 11:52:31,523 INFO L276 IsEmpty]: Start isEmpty. Operand 189 states and 199 transitions. [2018-01-24 11:52:31,523 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2018-01-24 11:52:31,523 INFO L314 BasicCegarLoop]: Found error trace [2018-01-24 11:52:31,523 INFO L322 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-24 11:52:31,523 INFO L371 AbstractCegarLoop]: === Iteration 22 === [__list_addErr1RequiresViolation, __list_addErr3RequiresViolation, __list_addErr0RequiresViolation, __list_addErr2RequiresViolation, __list_addErr4RequiresViolation, __list_addErr7RequiresViolation, __list_addErr5RequiresViolation, __list_addErr6RequiresViolation, ULTIMATE.initErr3RequiresViolation, ULTIMATE.initErr1RequiresViolation, ULTIMATE.initErr2RequiresViolation, ULTIMATE.initErr0RequiresViolation, val_from_nodeErr0RequiresViolation, val_from_nodeErr1RequiresViolation, list_moveErr0RequiresViolation, list_moveErr3RequiresViolation, list_moveErr2RequiresViolation, list_moveErr1RequiresViolation, gl_sortErr16RequiresViolation, gl_sortErr4RequiresViolation, gl_sortErr12RequiresViolation, gl_sortErr5RequiresViolation, gl_sortErr0RequiresViolation, gl_sortErr11RequiresViolation, gl_sortErr9RequiresViolation, gl_sortErr2RequiresViolation, gl_sortErr18RequiresViolation, gl_sortErr7RequiresViolation, gl_sortErr13RequiresViolation, gl_sortErr14RequiresViolation, gl_sortErr19RequiresViolation, gl_sortErr6RequiresViolation, gl_sortErr1RequiresViolation, gl_sortErr17RequiresViolation, gl_sortErr15RequiresViolation, gl_sortErr10RequiresViolation, gl_sortErr8RequiresViolation, gl_sortErr3RequiresViolation, list_addErr1RequiresViolation, list_addErr0RequiresViolation, list_emptyErr0RequiresViolation, list_emptyErr1RequiresViolation, __list_delErr0RequiresViolation, __list_delErr2RequiresViolation, __list_delErr3RequiresViolation, __list_delErr1RequiresViolation, mainErr0EnsuresViolation, gl_insertErr0RequiresViolation, gl_insertErr1RequiresViolation, gl_seek_maxErr0RequiresViolation, gl_seek_maxErr2RequiresViolation, gl_seek_maxErr1RequiresViolation, gl_seek_maxErr5RequiresViolation, gl_seek_maxErr3RequiresViolation, gl_seek_maxErr4RequiresViolation, gl_destroyErr4RequiresViolation, gl_destroyErr2RequiresViolation, gl_destroyErr0RequiresViolation, gl_destroyErr1RequiresViolation, gl_destroyErr6RequiresViolation, gl_destroyErr7RequiresViolation, gl_destroyErr3RequiresViolation, gl_destroyErr5RequiresViolation]=== [2018-01-24 11:52:31,523 INFO L82 PathProgramCache]: Analyzing trace with hash 1044324748, now seen corresponding path program 1 times [2018-01-24 11:52:31,524 INFO L209 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-01-24 11:52:31,524 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-01-24 11:52:31,524 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 11:52:31,524 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-24 11:52:31,524 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 11:52:31,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-24 11:52:31,539 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-24 11:52:31,835 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-24 11:52:31,836 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-01-24 11:52:31,836 INFO L209 onRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-01-24 11:52:31,840 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-24 11:52:31,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-24 11:52:31,873 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-01-24 11:52:31,988 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2018-01-24 11:52:31,990 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 3 [2018-01-24 11:52:31,990 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-01-24 11:52:31,991 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-01-24 11:52:31,992 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-01-24 11:52:31,992 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:15, output treesize:3 [2018-01-24 11:52:32,031 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-24 11:52:32,059 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-01-24 11:52:32,059 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [19] total 28 [2018-01-24 11:52:32,060 INFO L409 AbstractCegarLoop]: Interpolant automaton has 28 states [2018-01-24 11:52:32,060 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2018-01-24 11:52:32,060 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=686, Unknown=0, NotChecked=0, Total=756 [2018-01-24 11:52:32,060 INFO L87 Difference]: Start difference. First operand 189 states and 199 transitions. Second operand 28 states. [2018-01-24 11:52:33,926 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-24 11:52:33,926 INFO L93 Difference]: Finished difference Result 218 states and 227 transitions. [2018-01-24 11:52:33,927 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2018-01-24 11:52:33,927 INFO L78 Accepts]: Start accepts. Automaton has 28 states. Word has length 60 [2018-01-24 11:52:33,927 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-24 11:52:33,928 INFO L225 Difference]: With dead ends: 218 [2018-01-24 11:52:33,928 INFO L226 Difference]: Without dead ends: 189 [2018-01-24 11:52:33,929 INFO L525 BasicCegarLoop]: 0 DeclaredPredicates, 116 GetRequests, 57 SyntacticMatches, 0 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 719 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=458, Invalid=3202, Unknown=0, NotChecked=0, Total=3660 [2018-01-24 11:52:33,929 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 189 states. [2018-01-24 11:52:33,941 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 189 to 171. [2018-01-24 11:52:33,942 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 171 states. [2018-01-24 11:52:33,942 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 171 states to 171 states and 177 transitions. [2018-01-24 11:52:33,942 INFO L78 Accepts]: Start accepts. Automaton has 171 states and 177 transitions. Word has length 60 [2018-01-24 11:52:33,943 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-24 11:52:33,943 INFO L432 AbstractCegarLoop]: Abstraction has 171 states and 177 transitions. [2018-01-24 11:52:33,943 INFO L433 AbstractCegarLoop]: Interpolant automaton has 28 states. [2018-01-24 11:52:33,943 INFO L276 IsEmpty]: Start isEmpty. Operand 171 states and 177 transitions. [2018-01-24 11:52:33,943 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2018-01-24 11:52:33,944 INFO L314 BasicCegarLoop]: Found error trace [2018-01-24 11:52:33,944 INFO L322 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-24 11:52:33,944 INFO L371 AbstractCegarLoop]: === Iteration 23 === [__list_addErr1RequiresViolation, __list_addErr3RequiresViolation, __list_addErr0RequiresViolation, __list_addErr2RequiresViolation, __list_addErr4RequiresViolation, __list_addErr7RequiresViolation, __list_addErr5RequiresViolation, __list_addErr6RequiresViolation, ULTIMATE.initErr3RequiresViolation, ULTIMATE.initErr1RequiresViolation, ULTIMATE.initErr2RequiresViolation, ULTIMATE.initErr0RequiresViolation, val_from_nodeErr0RequiresViolation, val_from_nodeErr1RequiresViolation, list_moveErr0RequiresViolation, list_moveErr3RequiresViolation, list_moveErr2RequiresViolation, list_moveErr1RequiresViolation, gl_sortErr16RequiresViolation, gl_sortErr4RequiresViolation, gl_sortErr12RequiresViolation, gl_sortErr5RequiresViolation, gl_sortErr0RequiresViolation, gl_sortErr11RequiresViolation, gl_sortErr9RequiresViolation, gl_sortErr2RequiresViolation, gl_sortErr18RequiresViolation, gl_sortErr7RequiresViolation, gl_sortErr13RequiresViolation, gl_sortErr14RequiresViolation, gl_sortErr19RequiresViolation, gl_sortErr6RequiresViolation, gl_sortErr1RequiresViolation, gl_sortErr17RequiresViolation, gl_sortErr15RequiresViolation, gl_sortErr10RequiresViolation, gl_sortErr8RequiresViolation, gl_sortErr3RequiresViolation, list_addErr1RequiresViolation, list_addErr0RequiresViolation, list_emptyErr0RequiresViolation, list_emptyErr1RequiresViolation, __list_delErr0RequiresViolation, __list_delErr2RequiresViolation, __list_delErr3RequiresViolation, __list_delErr1RequiresViolation, mainErr0EnsuresViolation, gl_insertErr0RequiresViolation, gl_insertErr1RequiresViolation, gl_seek_maxErr0RequiresViolation, gl_seek_maxErr2RequiresViolation, gl_seek_maxErr1RequiresViolation, gl_seek_maxErr5RequiresViolation, gl_seek_maxErr3RequiresViolation, gl_seek_maxErr4RequiresViolation, gl_destroyErr4RequiresViolation, gl_destroyErr2RequiresViolation, gl_destroyErr0RequiresViolation, gl_destroyErr1RequiresViolation, gl_destroyErr6RequiresViolation, gl_destroyErr7RequiresViolation, gl_destroyErr3RequiresViolation, gl_destroyErr5RequiresViolation]=== [2018-01-24 11:52:33,944 INFO L82 PathProgramCache]: Analyzing trace with hash 1010017735, now seen corresponding path program 1 times [2018-01-24 11:52:33,944 INFO L209 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-01-24 11:52:33,944 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-01-24 11:52:33,945 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 11:52:33,945 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-24 11:52:33,945 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 11:52:33,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-24 11:52:33,966 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-24 11:52:34,242 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-01-24 11:52:34,243 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-24 11:52:34,243 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2018-01-24 11:52:34,243 INFO L409 AbstractCegarLoop]: Interpolant automaton has 18 states [2018-01-24 11:52:34,243 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2018-01-24 11:52:34,243 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=270, Unknown=0, NotChecked=0, Total=306 [2018-01-24 11:52:34,244 INFO L87 Difference]: Start difference. First operand 171 states and 177 transitions. Second operand 18 states. [2018-01-24 11:52:35,061 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-24 11:52:35,061 INFO L93 Difference]: Finished difference Result 268 states and 286 transitions. [2018-01-24 11:52:35,061 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2018-01-24 11:52:35,061 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 66 [2018-01-24 11:52:35,061 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-24 11:52:35,062 INFO L225 Difference]: With dead ends: 268 [2018-01-24 11:52:35,063 INFO L226 Difference]: Without dead ends: 266 [2018-01-24 11:52:35,063 INFO L525 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 95 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=109, Invalid=761, Unknown=0, NotChecked=0, Total=870 [2018-01-24 11:52:35,063 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 266 states. [2018-01-24 11:52:35,081 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 266 to 208. [2018-01-24 11:52:35,081 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 208 states. [2018-01-24 11:52:35,082 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 208 states to 208 states and 223 transitions. [2018-01-24 11:52:35,082 INFO L78 Accepts]: Start accepts. Automaton has 208 states and 223 transitions. Word has length 66 [2018-01-24 11:52:35,082 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-24 11:52:35,082 INFO L432 AbstractCegarLoop]: Abstraction has 208 states and 223 transitions. [2018-01-24 11:52:35,082 INFO L433 AbstractCegarLoop]: Interpolant automaton has 18 states. [2018-01-24 11:52:35,082 INFO L276 IsEmpty]: Start isEmpty. Operand 208 states and 223 transitions. [2018-01-24 11:52:35,083 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2018-01-24 11:52:35,083 INFO L314 BasicCegarLoop]: Found error trace [2018-01-24 11:52:35,083 INFO L322 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-24 11:52:35,084 INFO L371 AbstractCegarLoop]: === Iteration 24 === [__list_addErr1RequiresViolation, __list_addErr3RequiresViolation, __list_addErr0RequiresViolation, __list_addErr2RequiresViolation, __list_addErr4RequiresViolation, __list_addErr7RequiresViolation, __list_addErr5RequiresViolation, __list_addErr6RequiresViolation, ULTIMATE.initErr3RequiresViolation, ULTIMATE.initErr1RequiresViolation, ULTIMATE.initErr2RequiresViolation, ULTIMATE.initErr0RequiresViolation, val_from_nodeErr0RequiresViolation, val_from_nodeErr1RequiresViolation, list_moveErr0RequiresViolation, list_moveErr3RequiresViolation, list_moveErr2RequiresViolation, list_moveErr1RequiresViolation, gl_sortErr16RequiresViolation, gl_sortErr4RequiresViolation, gl_sortErr12RequiresViolation, gl_sortErr5RequiresViolation, gl_sortErr0RequiresViolation, gl_sortErr11RequiresViolation, gl_sortErr9RequiresViolation, gl_sortErr2RequiresViolation, gl_sortErr18RequiresViolation, gl_sortErr7RequiresViolation, gl_sortErr13RequiresViolation, gl_sortErr14RequiresViolation, gl_sortErr19RequiresViolation, gl_sortErr6RequiresViolation, gl_sortErr1RequiresViolation, gl_sortErr17RequiresViolation, gl_sortErr15RequiresViolation, gl_sortErr10RequiresViolation, gl_sortErr8RequiresViolation, gl_sortErr3RequiresViolation, list_addErr1RequiresViolation, list_addErr0RequiresViolation, list_emptyErr0RequiresViolation, list_emptyErr1RequiresViolation, __list_delErr0RequiresViolation, __list_delErr2RequiresViolation, __list_delErr3RequiresViolation, __list_delErr1RequiresViolation, mainErr0EnsuresViolation, gl_insertErr0RequiresViolation, gl_insertErr1RequiresViolation, gl_seek_maxErr0RequiresViolation, gl_seek_maxErr2RequiresViolation, gl_seek_maxErr1RequiresViolation, gl_seek_maxErr5RequiresViolation, gl_seek_maxErr3RequiresViolation, gl_seek_maxErr4RequiresViolation, gl_destroyErr4RequiresViolation, gl_destroyErr2RequiresViolation, gl_destroyErr0RequiresViolation, gl_destroyErr1RequiresViolation, gl_destroyErr6RequiresViolation, gl_destroyErr7RequiresViolation, gl_destroyErr3RequiresViolation, gl_destroyErr5RequiresViolation]=== [2018-01-24 11:52:35,084 INFO L82 PathProgramCache]: Analyzing trace with hash 1010017736, now seen corresponding path program 1 times [2018-01-24 11:52:35,084 INFO L209 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-01-24 11:52:35,084 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-01-24 11:52:35,085 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 11:52:35,085 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-24 11:52:35,085 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 11:52:35,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-24 11:52:35,115 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-24 11:52:35,729 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-01-24 11:52:35,729 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-24 11:52:35,729 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2018-01-24 11:52:35,730 INFO L409 AbstractCegarLoop]: Interpolant automaton has 19 states [2018-01-24 11:52:35,730 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2018-01-24 11:52:35,730 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=302, Unknown=0, NotChecked=0, Total=342 [2018-01-24 11:52:35,730 INFO L87 Difference]: Start difference. First operand 208 states and 223 transitions. Second operand 19 states. [2018-01-24 11:52:36,755 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-24 11:52:36,755 INFO L93 Difference]: Finished difference Result 252 states and 268 transitions. [2018-01-24 11:52:36,756 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2018-01-24 11:52:36,756 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 66 [2018-01-24 11:52:36,756 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-24 11:52:36,757 INFO L225 Difference]: With dead ends: 252 [2018-01-24 11:52:36,757 INFO L226 Difference]: Without dead ends: 250 [2018-01-24 11:52:36,757 INFO L525 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 127 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=116, Invalid=876, Unknown=0, NotChecked=0, Total=992 [2018-01-24 11:52:36,758 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 250 states. [2018-01-24 11:52:36,786 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 250 to 208. [2018-01-24 11:52:36,786 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 208 states. [2018-01-24 11:52:36,787 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 208 states to 208 states and 221 transitions. [2018-01-24 11:52:36,788 INFO L78 Accepts]: Start accepts. Automaton has 208 states and 221 transitions. Word has length 66 [2018-01-24 11:52:36,788 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-24 11:52:36,788 INFO L432 AbstractCegarLoop]: Abstraction has 208 states and 221 transitions. [2018-01-24 11:52:36,788 INFO L433 AbstractCegarLoop]: Interpolant automaton has 19 states. [2018-01-24 11:52:36,788 INFO L276 IsEmpty]: Start isEmpty. Operand 208 states and 221 transitions. [2018-01-24 11:52:36,789 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2018-01-24 11:52:36,789 INFO L314 BasicCegarLoop]: Found error trace [2018-01-24 11:52:36,789 INFO L322 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-24 11:52:36,789 INFO L371 AbstractCegarLoop]: === Iteration 25 === [__list_addErr1RequiresViolation, __list_addErr3RequiresViolation, __list_addErr0RequiresViolation, __list_addErr2RequiresViolation, __list_addErr4RequiresViolation, __list_addErr7RequiresViolation, __list_addErr5RequiresViolation, __list_addErr6RequiresViolation, ULTIMATE.initErr3RequiresViolation, ULTIMATE.initErr1RequiresViolation, ULTIMATE.initErr2RequiresViolation, ULTIMATE.initErr0RequiresViolation, val_from_nodeErr0RequiresViolation, val_from_nodeErr1RequiresViolation, list_moveErr0RequiresViolation, list_moveErr3RequiresViolation, list_moveErr2RequiresViolation, list_moveErr1RequiresViolation, gl_sortErr16RequiresViolation, gl_sortErr4RequiresViolation, gl_sortErr12RequiresViolation, gl_sortErr5RequiresViolation, gl_sortErr0RequiresViolation, gl_sortErr11RequiresViolation, gl_sortErr9RequiresViolation, gl_sortErr2RequiresViolation, gl_sortErr18RequiresViolation, gl_sortErr7RequiresViolation, gl_sortErr13RequiresViolation, gl_sortErr14RequiresViolation, gl_sortErr19RequiresViolation, gl_sortErr6RequiresViolation, gl_sortErr1RequiresViolation, gl_sortErr17RequiresViolation, gl_sortErr15RequiresViolation, gl_sortErr10RequiresViolation, gl_sortErr8RequiresViolation, gl_sortErr3RequiresViolation, list_addErr1RequiresViolation, list_addErr0RequiresViolation, list_emptyErr0RequiresViolation, list_emptyErr1RequiresViolation, __list_delErr0RequiresViolation, __list_delErr2RequiresViolation, __list_delErr3RequiresViolation, __list_delErr1RequiresViolation, mainErr0EnsuresViolation, gl_insertErr0RequiresViolation, gl_insertErr1RequiresViolation, gl_seek_maxErr0RequiresViolation, gl_seek_maxErr2RequiresViolation, gl_seek_maxErr1RequiresViolation, gl_seek_maxErr5RequiresViolation, gl_seek_maxErr3RequiresViolation, gl_seek_maxErr4RequiresViolation, gl_destroyErr4RequiresViolation, gl_destroyErr2RequiresViolation, gl_destroyErr0RequiresViolation, gl_destroyErr1RequiresViolation, gl_destroyErr6RequiresViolation, gl_destroyErr7RequiresViolation, gl_destroyErr3RequiresViolation, gl_destroyErr5RequiresViolation]=== [2018-01-24 11:52:36,790 INFO L82 PathProgramCache]: Analyzing trace with hash 1387017030, now seen corresponding path program 1 times [2018-01-24 11:52:36,790 INFO L209 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-01-24 11:52:36,790 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-01-24 11:52:36,790 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 11:52:36,791 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-24 11:52:36,791 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 11:52:36,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-24 11:52:36,806 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-24 11:52:36,881 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-01-24 11:52:36,882 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-24 11:52:36,882 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-01-24 11:52:36,882 INFO L409 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-01-24 11:52:36,882 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-01-24 11:52:36,882 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-01-24 11:52:36,883 INFO L87 Difference]: Start difference. First operand 208 states and 221 transitions. Second operand 4 states. [2018-01-24 11:52:37,016 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-24 11:52:37,016 INFO L93 Difference]: Finished difference Result 215 states and 230 transitions. [2018-01-24 11:52:37,016 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-01-24 11:52:37,016 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 67 [2018-01-24 11:52:37,017 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-24 11:52:37,018 INFO L225 Difference]: With dead ends: 215 [2018-01-24 11:52:37,018 INFO L226 Difference]: Without dead ends: 214 [2018-01-24 11:52:37,018 INFO L525 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-01-24 11:52:37,019 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 214 states. [2018-01-24 11:52:37,044 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 214 to 212. [2018-01-24 11:52:37,045 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 212 states. [2018-01-24 11:52:37,045 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 212 states to 212 states and 227 transitions. [2018-01-24 11:52:37,046 INFO L78 Accepts]: Start accepts. Automaton has 212 states and 227 transitions. Word has length 67 [2018-01-24 11:52:37,046 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-24 11:52:37,046 INFO L432 AbstractCegarLoop]: Abstraction has 212 states and 227 transitions. [2018-01-24 11:52:37,046 INFO L433 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-01-24 11:52:37,046 INFO L276 IsEmpty]: Start isEmpty. Operand 212 states and 227 transitions. [2018-01-24 11:52:37,046 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2018-01-24 11:52:37,046 INFO L314 BasicCegarLoop]: Found error trace [2018-01-24 11:52:37,047 INFO L322 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-24 11:52:37,047 INFO L371 AbstractCegarLoop]: === Iteration 26 === [__list_addErr1RequiresViolation, __list_addErr3RequiresViolation, __list_addErr0RequiresViolation, __list_addErr2RequiresViolation, __list_addErr4RequiresViolation, __list_addErr7RequiresViolation, __list_addErr5RequiresViolation, __list_addErr6RequiresViolation, ULTIMATE.initErr3RequiresViolation, ULTIMATE.initErr1RequiresViolation, ULTIMATE.initErr2RequiresViolation, ULTIMATE.initErr0RequiresViolation, val_from_nodeErr0RequiresViolation, val_from_nodeErr1RequiresViolation, list_moveErr0RequiresViolation, list_moveErr3RequiresViolation, list_moveErr2RequiresViolation, list_moveErr1RequiresViolation, gl_sortErr16RequiresViolation, gl_sortErr4RequiresViolation, gl_sortErr12RequiresViolation, gl_sortErr5RequiresViolation, gl_sortErr0RequiresViolation, gl_sortErr11RequiresViolation, gl_sortErr9RequiresViolation, gl_sortErr2RequiresViolation, gl_sortErr18RequiresViolation, gl_sortErr7RequiresViolation, gl_sortErr13RequiresViolation, gl_sortErr14RequiresViolation, gl_sortErr19RequiresViolation, gl_sortErr6RequiresViolation, gl_sortErr1RequiresViolation, gl_sortErr17RequiresViolation, gl_sortErr15RequiresViolation, gl_sortErr10RequiresViolation, gl_sortErr8RequiresViolation, gl_sortErr3RequiresViolation, list_addErr1RequiresViolation, list_addErr0RequiresViolation, list_emptyErr0RequiresViolation, list_emptyErr1RequiresViolation, __list_delErr0RequiresViolation, __list_delErr2RequiresViolation, __list_delErr3RequiresViolation, __list_delErr1RequiresViolation, mainErr0EnsuresViolation, gl_insertErr0RequiresViolation, gl_insertErr1RequiresViolation, gl_seek_maxErr0RequiresViolation, gl_seek_maxErr2RequiresViolation, gl_seek_maxErr1RequiresViolation, gl_seek_maxErr5RequiresViolation, gl_seek_maxErr3RequiresViolation, gl_seek_maxErr4RequiresViolation, gl_destroyErr4RequiresViolation, gl_destroyErr2RequiresViolation, gl_destroyErr0RequiresViolation, gl_destroyErr1RequiresViolation, gl_destroyErr6RequiresViolation, gl_destroyErr7RequiresViolation, gl_destroyErr3RequiresViolation, gl_destroyErr5RequiresViolation]=== [2018-01-24 11:52:37,047 INFO L82 PathProgramCache]: Analyzing trace with hash 1387017031, now seen corresponding path program 1 times [2018-01-24 11:52:37,047 INFO L209 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-01-24 11:52:37,047 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-01-24 11:52:37,048 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 11:52:37,048 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-24 11:52:37,048 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 11:52:37,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-24 11:52:37,063 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-24 11:52:37,185 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-01-24 11:52:37,185 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-24 11:52:37,185 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-01-24 11:52:37,185 INFO L409 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-01-24 11:52:37,185 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-01-24 11:52:37,185 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-01-24 11:52:37,186 INFO L87 Difference]: Start difference. First operand 212 states and 227 transitions. Second operand 5 states. [2018-01-24 11:52:37,765 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-24 11:52:37,765 INFO L93 Difference]: Finished difference Result 219 states and 234 transitions. [2018-01-24 11:52:37,765 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-01-24 11:52:37,765 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 67 [2018-01-24 11:52:37,766 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-24 11:52:37,766 INFO L225 Difference]: With dead ends: 219 [2018-01-24 11:52:37,766 INFO L226 Difference]: Without dead ends: 218 [2018-01-24 11:52:37,767 INFO L525 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2018-01-24 11:52:37,767 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 218 states. [2018-01-24 11:52:37,785 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 218 to 212. [2018-01-24 11:52:37,785 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 212 states. [2018-01-24 11:52:37,786 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 212 states to 212 states and 226 transitions. [2018-01-24 11:52:37,786 INFO L78 Accepts]: Start accepts. Automaton has 212 states and 226 transitions. Word has length 67 [2018-01-24 11:52:37,786 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-24 11:52:37,786 INFO L432 AbstractCegarLoop]: Abstraction has 212 states and 226 transitions. [2018-01-24 11:52:37,786 INFO L433 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-01-24 11:52:37,786 INFO L276 IsEmpty]: Start isEmpty. Operand 212 states and 226 transitions. [2018-01-24 11:52:37,787 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2018-01-24 11:52:37,787 INFO L314 BasicCegarLoop]: Found error trace [2018-01-24 11:52:37,787 INFO L322 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-24 11:52:37,787 INFO L371 AbstractCegarLoop]: === Iteration 27 === [__list_addErr1RequiresViolation, __list_addErr3RequiresViolation, __list_addErr0RequiresViolation, __list_addErr2RequiresViolation, __list_addErr4RequiresViolation, __list_addErr7RequiresViolation, __list_addErr5RequiresViolation, __list_addErr6RequiresViolation, ULTIMATE.initErr3RequiresViolation, ULTIMATE.initErr1RequiresViolation, ULTIMATE.initErr2RequiresViolation, ULTIMATE.initErr0RequiresViolation, val_from_nodeErr0RequiresViolation, val_from_nodeErr1RequiresViolation, list_moveErr0RequiresViolation, list_moveErr3RequiresViolation, list_moveErr2RequiresViolation, list_moveErr1RequiresViolation, gl_sortErr16RequiresViolation, gl_sortErr4RequiresViolation, gl_sortErr12RequiresViolation, gl_sortErr5RequiresViolation, gl_sortErr0RequiresViolation, gl_sortErr11RequiresViolation, gl_sortErr9RequiresViolation, gl_sortErr2RequiresViolation, gl_sortErr18RequiresViolation, gl_sortErr7RequiresViolation, gl_sortErr13RequiresViolation, gl_sortErr14RequiresViolation, gl_sortErr19RequiresViolation, gl_sortErr6RequiresViolation, gl_sortErr1RequiresViolation, gl_sortErr17RequiresViolation, gl_sortErr15RequiresViolation, gl_sortErr10RequiresViolation, gl_sortErr8RequiresViolation, gl_sortErr3RequiresViolation, list_addErr1RequiresViolation, list_addErr0RequiresViolation, list_emptyErr0RequiresViolation, list_emptyErr1RequiresViolation, __list_delErr0RequiresViolation, __list_delErr2RequiresViolation, __list_delErr3RequiresViolation, __list_delErr1RequiresViolation, mainErr0EnsuresViolation, gl_insertErr0RequiresViolation, gl_insertErr1RequiresViolation, gl_seek_maxErr0RequiresViolation, gl_seek_maxErr2RequiresViolation, gl_seek_maxErr1RequiresViolation, gl_seek_maxErr5RequiresViolation, gl_seek_maxErr3RequiresViolation, gl_seek_maxErr4RequiresViolation, gl_destroyErr4RequiresViolation, gl_destroyErr2RequiresViolation, gl_destroyErr0RequiresViolation, gl_destroyErr1RequiresViolation, gl_destroyErr6RequiresViolation, gl_destroyErr7RequiresViolation, gl_destroyErr3RequiresViolation, gl_destroyErr5RequiresViolation]=== [2018-01-24 11:52:37,788 INFO L82 PathProgramCache]: Analyzing trace with hash 48096554, now seen corresponding path program 1 times [2018-01-24 11:52:37,788 INFO L209 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-01-24 11:52:37,788 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-01-24 11:52:37,788 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 11:52:37,788 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-24 11:52:37,788 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 11:52:37,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-24 11:52:37,801 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-24 11:52:37,892 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-01-24 11:52:37,892 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-24 11:52:37,892 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-01-24 11:52:37,892 INFO L409 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-01-24 11:52:37,892 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-01-24 11:52:37,893 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-01-24 11:52:37,893 INFO L87 Difference]: Start difference. First operand 212 states and 226 transitions. Second operand 5 states. [2018-01-24 11:52:37,987 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-24 11:52:37,987 INFO L93 Difference]: Finished difference Result 341 states and 362 transitions. [2018-01-24 11:52:37,987 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-01-24 11:52:37,987 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 68 [2018-01-24 11:52:37,987 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-24 11:52:37,988 INFO L225 Difference]: With dead ends: 341 [2018-01-24 11:52:37,988 INFO L226 Difference]: Without dead ends: 220 [2018-01-24 11:52:37,989 INFO L525 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-01-24 11:52:37,989 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 220 states. [2018-01-24 11:52:38,007 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 220 to 220. [2018-01-24 11:52:38,008 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 220 states. [2018-01-24 11:52:38,008 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 220 states to 220 states and 234 transitions. [2018-01-24 11:52:38,008 INFO L78 Accepts]: Start accepts. Automaton has 220 states and 234 transitions. Word has length 68 [2018-01-24 11:52:38,009 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-24 11:52:38,009 INFO L432 AbstractCegarLoop]: Abstraction has 220 states and 234 transitions. [2018-01-24 11:52:38,009 INFO L433 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-01-24 11:52:38,009 INFO L276 IsEmpty]: Start isEmpty. Operand 220 states and 234 transitions. [2018-01-24 11:52:38,009 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2018-01-24 11:52:38,010 INFO L314 BasicCegarLoop]: Found error trace [2018-01-24 11:52:38,010 INFO L322 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-24 11:52:38,010 INFO L371 AbstractCegarLoop]: === Iteration 28 === [__list_addErr1RequiresViolation, __list_addErr3RequiresViolation, __list_addErr0RequiresViolation, __list_addErr2RequiresViolation, __list_addErr4RequiresViolation, __list_addErr7RequiresViolation, __list_addErr5RequiresViolation, __list_addErr6RequiresViolation, ULTIMATE.initErr3RequiresViolation, ULTIMATE.initErr1RequiresViolation, ULTIMATE.initErr2RequiresViolation, ULTIMATE.initErr0RequiresViolation, val_from_nodeErr0RequiresViolation, val_from_nodeErr1RequiresViolation, list_moveErr0RequiresViolation, list_moveErr3RequiresViolation, list_moveErr2RequiresViolation, list_moveErr1RequiresViolation, gl_sortErr16RequiresViolation, gl_sortErr4RequiresViolation, gl_sortErr12RequiresViolation, gl_sortErr5RequiresViolation, gl_sortErr0RequiresViolation, gl_sortErr11RequiresViolation, gl_sortErr9RequiresViolation, gl_sortErr2RequiresViolation, gl_sortErr18RequiresViolation, gl_sortErr7RequiresViolation, gl_sortErr13RequiresViolation, gl_sortErr14RequiresViolation, gl_sortErr19RequiresViolation, gl_sortErr6RequiresViolation, gl_sortErr1RequiresViolation, gl_sortErr17RequiresViolation, gl_sortErr15RequiresViolation, gl_sortErr10RequiresViolation, gl_sortErr8RequiresViolation, gl_sortErr3RequiresViolation, list_addErr1RequiresViolation, list_addErr0RequiresViolation, list_emptyErr0RequiresViolation, list_emptyErr1RequiresViolation, __list_delErr0RequiresViolation, __list_delErr2RequiresViolation, __list_delErr3RequiresViolation, __list_delErr1RequiresViolation, mainErr0EnsuresViolation, gl_insertErr0RequiresViolation, gl_insertErr1RequiresViolation, gl_seek_maxErr0RequiresViolation, gl_seek_maxErr2RequiresViolation, gl_seek_maxErr1RequiresViolation, gl_seek_maxErr5RequiresViolation, gl_seek_maxErr3RequiresViolation, gl_seek_maxErr4RequiresViolation, gl_destroyErr4RequiresViolation, gl_destroyErr2RequiresViolation, gl_destroyErr0RequiresViolation, gl_destroyErr1RequiresViolation, gl_destroyErr6RequiresViolation, gl_destroyErr7RequiresViolation, gl_destroyErr3RequiresViolation, gl_destroyErr5RequiresViolation]=== [2018-01-24 11:52:38,010 INFO L82 PathProgramCache]: Analyzing trace with hash -1255988233, now seen corresponding path program 1 times [2018-01-24 11:52:38,010 INFO L209 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-01-24 11:52:38,010 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-01-24 11:52:38,011 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 11:52:38,011 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-24 11:52:38,011 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 11:52:38,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-24 11:52:38,026 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-24 11:52:38,446 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-01-24 11:52:38,446 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-24 11:52:38,446 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2018-01-24 11:52:38,447 INFO L409 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-01-24 11:52:38,447 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-01-24 11:52:38,447 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2018-01-24 11:52:38,447 INFO L87 Difference]: Start difference. First operand 220 states and 234 transitions. Second operand 11 states. [2018-01-24 11:52:38,878 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-24 11:52:38,879 INFO L93 Difference]: Finished difference Result 230 states and 245 transitions. [2018-01-24 11:52:38,879 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-01-24 11:52:38,879 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 70 [2018-01-24 11:52:38,879 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-24 11:52:38,880 INFO L225 Difference]: With dead ends: 230 [2018-01-24 11:52:38,880 INFO L226 Difference]: Without dead ends: 229 [2018-01-24 11:52:38,880 INFO L525 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 50 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=73, Invalid=269, Unknown=0, NotChecked=0, Total=342 [2018-01-24 11:52:38,881 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 229 states. [2018-01-24 11:52:38,910 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 229 to 223. [2018-01-24 11:52:38,910 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 223 states. [2018-01-24 11:52:38,911 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 223 states to 223 states and 238 transitions. [2018-01-24 11:52:38,911 INFO L78 Accepts]: Start accepts. Automaton has 223 states and 238 transitions. Word has length 70 [2018-01-24 11:52:38,911 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-24 11:52:38,911 INFO L432 AbstractCegarLoop]: Abstraction has 223 states and 238 transitions. [2018-01-24 11:52:38,912 INFO L433 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-01-24 11:52:38,912 INFO L276 IsEmpty]: Start isEmpty. Operand 223 states and 238 transitions. [2018-01-24 11:52:38,912 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2018-01-24 11:52:38,912 INFO L314 BasicCegarLoop]: Found error trace [2018-01-24 11:52:38,913 INFO L322 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-24 11:52:38,913 INFO L371 AbstractCegarLoop]: === Iteration 29 === [__list_addErr1RequiresViolation, __list_addErr3RequiresViolation, __list_addErr0RequiresViolation, __list_addErr2RequiresViolation, __list_addErr4RequiresViolation, __list_addErr7RequiresViolation, __list_addErr5RequiresViolation, __list_addErr6RequiresViolation, ULTIMATE.initErr3RequiresViolation, ULTIMATE.initErr1RequiresViolation, ULTIMATE.initErr2RequiresViolation, ULTIMATE.initErr0RequiresViolation, val_from_nodeErr0RequiresViolation, val_from_nodeErr1RequiresViolation, list_moveErr0RequiresViolation, list_moveErr3RequiresViolation, list_moveErr2RequiresViolation, list_moveErr1RequiresViolation, gl_sortErr16RequiresViolation, gl_sortErr4RequiresViolation, gl_sortErr12RequiresViolation, gl_sortErr5RequiresViolation, gl_sortErr0RequiresViolation, gl_sortErr11RequiresViolation, gl_sortErr9RequiresViolation, gl_sortErr2RequiresViolation, gl_sortErr18RequiresViolation, gl_sortErr7RequiresViolation, gl_sortErr13RequiresViolation, gl_sortErr14RequiresViolation, gl_sortErr19RequiresViolation, gl_sortErr6RequiresViolation, gl_sortErr1RequiresViolation, gl_sortErr17RequiresViolation, gl_sortErr15RequiresViolation, gl_sortErr10RequiresViolation, gl_sortErr8RequiresViolation, gl_sortErr3RequiresViolation, list_addErr1RequiresViolation, list_addErr0RequiresViolation, list_emptyErr0RequiresViolation, list_emptyErr1RequiresViolation, __list_delErr0RequiresViolation, __list_delErr2RequiresViolation, __list_delErr3RequiresViolation, __list_delErr1RequiresViolation, mainErr0EnsuresViolation, gl_insertErr0RequiresViolation, gl_insertErr1RequiresViolation, gl_seek_maxErr0RequiresViolation, gl_seek_maxErr2RequiresViolation, gl_seek_maxErr1RequiresViolation, gl_seek_maxErr5RequiresViolation, gl_seek_maxErr3RequiresViolation, gl_seek_maxErr4RequiresViolation, gl_destroyErr4RequiresViolation, gl_destroyErr2RequiresViolation, gl_destroyErr0RequiresViolation, gl_destroyErr1RequiresViolation, gl_destroyErr6RequiresViolation, gl_destroyErr7RequiresViolation, gl_destroyErr3RequiresViolation, gl_destroyErr5RequiresViolation]=== [2018-01-24 11:52:38,913 INFO L82 PathProgramCache]: Analyzing trace with hash -1255988232, now seen corresponding path program 1 times [2018-01-24 11:52:38,913 INFO L209 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-01-24 11:52:38,913 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-01-24 11:52:38,914 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 11:52:38,914 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-24 11:52:38,914 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 11:52:38,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-24 11:52:38,936 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-24 11:52:39,295 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-01-24 11:52:39,295 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-24 11:52:39,295 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2018-01-24 11:52:39,296 INFO L409 AbstractCegarLoop]: Interpolant automaton has 14 states [2018-01-24 11:52:39,296 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2018-01-24 11:52:39,296 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=143, Unknown=0, NotChecked=0, Total=182 [2018-01-24 11:52:39,296 INFO L87 Difference]: Start difference. First operand 223 states and 238 transitions. Second operand 14 states. [2018-01-24 11:52:39,936 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-24 11:52:39,936 INFO L93 Difference]: Finished difference Result 230 states and 245 transitions. [2018-01-24 11:52:39,936 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-01-24 11:52:39,936 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 70 [2018-01-24 11:52:39,937 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-24 11:52:39,937 INFO L225 Difference]: With dead ends: 230 [2018-01-24 11:52:39,938 INFO L226 Difference]: Without dead ends: 229 [2018-01-24 11:52:39,938 INFO L525 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 77 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=126, Invalid=380, Unknown=0, NotChecked=0, Total=506 [2018-01-24 11:52:39,938 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 229 states. [2018-01-24 11:52:39,961 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 229 to 223. [2018-01-24 11:52:39,961 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 223 states. [2018-01-24 11:52:39,962 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 223 states to 223 states and 237 transitions. [2018-01-24 11:52:39,962 INFO L78 Accepts]: Start accepts. Automaton has 223 states and 237 transitions. Word has length 70 [2018-01-24 11:52:39,962 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-24 11:52:39,963 INFO L432 AbstractCegarLoop]: Abstraction has 223 states and 237 transitions. [2018-01-24 11:52:39,963 INFO L433 AbstractCegarLoop]: Interpolant automaton has 14 states. [2018-01-24 11:52:39,963 INFO L276 IsEmpty]: Start isEmpty. Operand 223 states and 237 transitions. [2018-01-24 11:52:39,963 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2018-01-24 11:52:39,964 INFO L314 BasicCegarLoop]: Found error trace [2018-01-24 11:52:39,964 INFO L322 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-24 11:52:39,964 INFO L371 AbstractCegarLoop]: === Iteration 30 === [__list_addErr1RequiresViolation, __list_addErr3RequiresViolation, __list_addErr0RequiresViolation, __list_addErr2RequiresViolation, __list_addErr4RequiresViolation, __list_addErr7RequiresViolation, __list_addErr5RequiresViolation, __list_addErr6RequiresViolation, ULTIMATE.initErr3RequiresViolation, ULTIMATE.initErr1RequiresViolation, ULTIMATE.initErr2RequiresViolation, ULTIMATE.initErr0RequiresViolation, val_from_nodeErr0RequiresViolation, val_from_nodeErr1RequiresViolation, list_moveErr0RequiresViolation, list_moveErr3RequiresViolation, list_moveErr2RequiresViolation, list_moveErr1RequiresViolation, gl_sortErr16RequiresViolation, gl_sortErr4RequiresViolation, gl_sortErr12RequiresViolation, gl_sortErr5RequiresViolation, gl_sortErr0RequiresViolation, gl_sortErr11RequiresViolation, gl_sortErr9RequiresViolation, gl_sortErr2RequiresViolation, gl_sortErr18RequiresViolation, gl_sortErr7RequiresViolation, gl_sortErr13RequiresViolation, gl_sortErr14RequiresViolation, gl_sortErr19RequiresViolation, gl_sortErr6RequiresViolation, gl_sortErr1RequiresViolation, gl_sortErr17RequiresViolation, gl_sortErr15RequiresViolation, gl_sortErr10RequiresViolation, gl_sortErr8RequiresViolation, gl_sortErr3RequiresViolation, list_addErr1RequiresViolation, list_addErr0RequiresViolation, list_emptyErr0RequiresViolation, list_emptyErr1RequiresViolation, __list_delErr0RequiresViolation, __list_delErr2RequiresViolation, __list_delErr3RequiresViolation, __list_delErr1RequiresViolation, mainErr0EnsuresViolation, gl_insertErr0RequiresViolation, gl_insertErr1RequiresViolation, gl_seek_maxErr0RequiresViolation, gl_seek_maxErr2RequiresViolation, gl_seek_maxErr1RequiresViolation, gl_seek_maxErr5RequiresViolation, gl_seek_maxErr3RequiresViolation, gl_seek_maxErr4RequiresViolation, gl_destroyErr4RequiresViolation, gl_destroyErr2RequiresViolation, gl_destroyErr0RequiresViolation, gl_destroyErr1RequiresViolation, gl_destroyErr6RequiresViolation, gl_destroyErr7RequiresViolation, gl_destroyErr3RequiresViolation, gl_destroyErr5RequiresViolation]=== [2018-01-24 11:52:39,964 INFO L82 PathProgramCache]: Analyzing trace with hash 593824277, now seen corresponding path program 1 times [2018-01-24 11:52:39,964 INFO L209 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-01-24 11:52:39,964 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-01-24 11:52:39,965 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 11:52:39,965 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-24 11:52:39,965 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 11:52:39,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-24 11:52:39,995 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-24 11:52:40,823 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-01-24 11:52:40,824 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-24 11:52:40,824 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2018-01-24 11:52:40,824 INFO L409 AbstractCegarLoop]: Interpolant automaton has 27 states [2018-01-24 11:52:40,824 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2018-01-24 11:52:40,824 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=642, Unknown=0, NotChecked=0, Total=702 [2018-01-24 11:52:40,824 INFO L87 Difference]: Start difference. First operand 223 states and 237 transitions. Second operand 27 states. [2018-01-24 11:52:43,083 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-24 11:52:43,083 INFO L93 Difference]: Finished difference Result 292 states and 312 transitions. [2018-01-24 11:52:43,084 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2018-01-24 11:52:43,084 INFO L78 Accepts]: Start accepts. Automaton has 27 states. Word has length 77 [2018-01-24 11:52:43,084 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-24 11:52:43,086 INFO L225 Difference]: With dead ends: 292 [2018-01-24 11:52:43,086 INFO L226 Difference]: Without dead ends: 290 [2018-01-24 11:52:43,087 INFO L525 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 502 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=293, Invalid=2463, Unknown=0, NotChecked=0, Total=2756 [2018-01-24 11:52:43,087 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 290 states. [2018-01-24 11:52:43,121 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 290 to 234. [2018-01-24 11:52:43,121 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 234 states. [2018-01-24 11:52:43,122 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 234 states to 234 states and 252 transitions. [2018-01-24 11:52:43,122 INFO L78 Accepts]: Start accepts. Automaton has 234 states and 252 transitions. Word has length 77 [2018-01-24 11:52:43,123 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-24 11:52:43,123 INFO L432 AbstractCegarLoop]: Abstraction has 234 states and 252 transitions. [2018-01-24 11:52:43,123 INFO L433 AbstractCegarLoop]: Interpolant automaton has 27 states. [2018-01-24 11:52:43,123 INFO L276 IsEmpty]: Start isEmpty. Operand 234 states and 252 transitions. [2018-01-24 11:52:43,124 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2018-01-24 11:52:43,124 INFO L314 BasicCegarLoop]: Found error trace [2018-01-24 11:52:43,124 INFO L322 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-24 11:52:43,124 INFO L371 AbstractCegarLoop]: === Iteration 31 === [__list_addErr1RequiresViolation, __list_addErr3RequiresViolation, __list_addErr0RequiresViolation, __list_addErr2RequiresViolation, __list_addErr4RequiresViolation, __list_addErr7RequiresViolation, __list_addErr5RequiresViolation, __list_addErr6RequiresViolation, ULTIMATE.initErr3RequiresViolation, ULTIMATE.initErr1RequiresViolation, ULTIMATE.initErr2RequiresViolation, ULTIMATE.initErr0RequiresViolation, val_from_nodeErr0RequiresViolation, val_from_nodeErr1RequiresViolation, list_moveErr0RequiresViolation, list_moveErr3RequiresViolation, list_moveErr2RequiresViolation, list_moveErr1RequiresViolation, gl_sortErr16RequiresViolation, gl_sortErr4RequiresViolation, gl_sortErr12RequiresViolation, gl_sortErr5RequiresViolation, gl_sortErr0RequiresViolation, gl_sortErr11RequiresViolation, gl_sortErr9RequiresViolation, gl_sortErr2RequiresViolation, gl_sortErr18RequiresViolation, gl_sortErr7RequiresViolation, gl_sortErr13RequiresViolation, gl_sortErr14RequiresViolation, gl_sortErr19RequiresViolation, gl_sortErr6RequiresViolation, gl_sortErr1RequiresViolation, gl_sortErr17RequiresViolation, gl_sortErr15RequiresViolation, gl_sortErr10RequiresViolation, gl_sortErr8RequiresViolation, gl_sortErr3RequiresViolation, list_addErr1RequiresViolation, list_addErr0RequiresViolation, list_emptyErr0RequiresViolation, list_emptyErr1RequiresViolation, __list_delErr0RequiresViolation, __list_delErr2RequiresViolation, __list_delErr3RequiresViolation, __list_delErr1RequiresViolation, mainErr0EnsuresViolation, gl_insertErr0RequiresViolation, gl_insertErr1RequiresViolation, gl_seek_maxErr0RequiresViolation, gl_seek_maxErr2RequiresViolation, gl_seek_maxErr1RequiresViolation, gl_seek_maxErr5RequiresViolation, gl_seek_maxErr3RequiresViolation, gl_seek_maxErr4RequiresViolation, gl_destroyErr4RequiresViolation, gl_destroyErr2RequiresViolation, gl_destroyErr0RequiresViolation, gl_destroyErr1RequiresViolation, gl_destroyErr6RequiresViolation, gl_destroyErr7RequiresViolation, gl_destroyErr3RequiresViolation, gl_destroyErr5RequiresViolation]=== [2018-01-24 11:52:43,124 INFO L82 PathProgramCache]: Analyzing trace with hash 593824278, now seen corresponding path program 1 times [2018-01-24 11:52:43,124 INFO L209 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-01-24 11:52:43,124 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-01-24 11:52:43,125 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 11:52:43,125 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-24 11:52:43,125 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 11:52:43,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-01-24 11:52:43,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-01-24 11:52:43,219 INFO L381 BasicCegarLoop]: Counterexample might be feasible [2018-01-24 11:52:43,254 WARN L1215 BoogieBacktranslator]: Unfinished Backtranslation: IntegerLiteral 16 could not be translated for associated CType STRUCT#?next~$Pointer$?prev~$Pointer$# [2018-01-24 11:52:43,255 WARN L1215 BoogieBacktranslator]: Unfinished Backtranslation: IntegerLiteral 28 could not be translated for associated CType STRUCT#?next~$Pointer$?prev~$Pointer$# [2018-01-24 11:52:43,256 WARN L1215 BoogieBacktranslator]: Unfinished Backtranslation: IntegerLiteral 28 could not be translated for associated CType STRUCT#?next~$Pointer$?prev~$Pointer$# [2018-01-24 11:52:43,256 WARN L1215 BoogieBacktranslator]: Unfinished Backtranslation: IntegerLiteral 16 could not be translated for associated CType STRUCT#?next~$Pointer$?prev~$Pointer$# [2018-01-24 11:52:43,275 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.01 11:52:43 BoogieIcfgContainer [2018-01-24 11:52:43,276 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-01-24 11:52:43,277 INFO L168 Benchmark]: Toolchain (without parser) took 40115.77 ms. Allocated memory was 302.0 MB in the beginning and 746.6 MB in the end (delta: 444.6 MB). Free memory was 260.9 MB in the beginning and 461.7 MB in the end (delta: -200.8 MB). Peak memory consumption was 243.8 MB. Max. memory is 5.3 GB. [2018-01-24 11:52:43,278 INFO L168 Benchmark]: CDTParser took 0.38 ms. Allocated memory is still 302.0 MB. Free memory is still 266.9 MB. There was no memory consumed. Max. memory is 5.3 GB. [2018-01-24 11:52:43,279 INFO L168 Benchmark]: CACSL2BoogieTranslator took 268.40 ms. Allocated memory is still 302.0 MB. Free memory was 260.9 MB in the beginning and 248.9 MB in the end (delta: 12.0 MB). Peak memory consumption was 12.0 MB. Max. memory is 5.3 GB. [2018-01-24 11:52:43,279 INFO L168 Benchmark]: Boogie Preprocessor took 46.44 ms. Allocated memory is still 302.0 MB. Free memory was 248.9 MB in the beginning and 246.9 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 5.3 GB. [2018-01-24 11:52:43,279 INFO L168 Benchmark]: RCFGBuilder took 737.33 ms. Allocated memory is still 302.0 MB. Free memory was 246.9 MB in the beginning and 202.0 MB in the end (delta: 44.9 MB). Peak memory consumption was 44.9 MB. Max. memory is 5.3 GB. [2018-01-24 11:52:43,280 INFO L168 Benchmark]: TraceAbstraction took 39050.49 ms. Allocated memory was 302.0 MB in the beginning and 746.6 MB in the end (delta: 444.6 MB). Free memory was 202.0 MB in the beginning and 461.7 MB in the end (delta: -259.6 MB). Peak memory consumption was 185.0 MB. Max. memory is 5.3 GB. [2018-01-24 11:52:43,281 INFO L344 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.38 ms. Allocated memory is still 302.0 MB. Free memory is still 266.9 MB. There was no memory consumed. Max. memory is 5.3 GB. * CACSL2BoogieTranslator took 268.40 ms. Allocated memory is still 302.0 MB. Free memory was 260.9 MB in the beginning and 248.9 MB in the end (delta: 12.0 MB). Peak memory consumption was 12.0 MB. Max. memory is 5.3 GB. * Boogie Preprocessor took 46.44 ms. Allocated memory is still 302.0 MB. Free memory was 248.9 MB in the beginning and 246.9 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 5.3 GB. * RCFGBuilder took 737.33 ms. Allocated memory is still 302.0 MB. Free memory was 246.9 MB in the beginning and 202.0 MB in the end (delta: 44.9 MB). Peak memory consumption was 44.9 MB. Max. memory is 5.3 GB. * TraceAbstraction took 39050.49 ms. Allocated memory was 302.0 MB in the beginning and 746.6 MB in the end (delta: 444.6 MB). Free memory was 202.0 MB in the beginning and 461.7 MB in the end (delta: -259.6 MB). Peak memory consumption was 185.0 MB. Max. memory is 5.3 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IntegerLiteral 16 could not be translated for associated CType STRUCT#?next~$Pointer$?prev~$Pointer$# - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IntegerLiteral 28 could not be translated for associated CType STRUCT#?next~$Pointer$?prev~$Pointer$# - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IntegerLiteral 28 could not be translated for associated CType STRUCT#?next~$Pointer$?prev~$Pointer$# - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IntegerLiteral 16 could not be translated for associated CType STRUCT#?next~$Pointer$?prev~$Pointer$# * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 1]: pointer dereference may fail pointer dereference may fail We found a FailurePath: IVAL [\old(gl_list)=null, \old(gl_list)=null, gl_list={28:16}] [L660] FCALL struct list_head gl_list = { &(gl_list), &(gl_list) }; VAL [gl_list={20:0}] [L721] CALL gl_read() VAL [gl_list={20:0}] [L672] CALL gl_insert(__VERIFIER_nondet_int()) VAL [\old(value)=0, gl_list={20:0}] [L663] EXPR, FCALL malloc(sizeof *node) VAL [\old(value)=0, gl_list={20:0}, malloc(sizeof *node)={29:0}, value=0] [L663] struct node *node = malloc(sizeof *node); VAL [\old(value)=0, gl_list={20:0}, malloc(sizeof *node)={29:0}, node={29:0}, value=0] [L664] COND FALSE !(!node) VAL [\old(value)=0, gl_list={20:0}, malloc(sizeof *node)={29:0}, node={29:0}, value=0] [L666] FCALL node->value = value VAL [\old(value)=0, gl_list={20:0}, malloc(sizeof *node)={29:0}, node={29:0}, value=0] [L667] CALL list_add(&node->linkage, &gl_list) VAL [gl_list={20:0}, head={20:0}, new={29:4}] [L643] EXPR, FCALL head->next VAL [gl_list={20:0}, head={20:0}, head={20:0}, head->next={20:0}, new={29:4}, new={29:4}] [L643] CALL __list_add(new, head, head->next) VAL [gl_list={20:0}, new={29:4}, next={20:0}, prev={20:0}] [L631] FCALL next->prev = new VAL [gl_list={20:0}, new={29:4}, new={29:4}, next={20:0}, next={20:0}, prev={20:0}, prev={20:0}] [L632] FCALL new->next = next VAL [gl_list={20:0}, new={29:4}, new={29:4}, next={20:0}, next={20:0}, prev={20:0}, prev={20:0}] [L633] FCALL new->prev = prev VAL [gl_list={20:0}, new={29:4}, new={29:4}, next={20:0}, next={20:0}, prev={20:0}, prev={20:0}] [L634] RET, FCALL prev->next = new VAL [gl_list={20:0}, new={29:4}, new={29:4}, next={20:0}, next={20:0}, prev={20:0}, prev={20:0}] [L643] __list_add(new, head, head->next) VAL [gl_list={20:0}, head={20:0}, head={20:0}, head->next={20:0}, new={29:4}, new={29:4}] [L667] FCALL list_add(&node->linkage, &gl_list) VAL [__VERIFIER_nondet_int()=0, gl_list={20:0}] [L674] COND FALSE, RET !(__VERIFIER_nondet_int()) [L721] gl_read() VAL [gl_list={20:0}] [L722] CALL gl_sort() VAL [gl_list={20:0}] [L709] CALL list_empty(&gl_list) VAL [gl_list={20:0}, head={20:0}] [L625] EXPR, FCALL head->next VAL [gl_list={20:0}, head={20:0}, head={20:0}, head->next={29:4}] [L625] RET return head->next == head; [L709] list_empty(&gl_list) VAL [gl_list={20:0}, list_empty(&gl_list)=0] [L709] COND FALSE !(list_empty(&gl_list)) [L711] FCALL struct list_head dst = { &(dst), &(dst) }; VAL [dst={26:0}, gl_list={20:0}] [L712] struct list_head *max_pos; VAL [dst={26:0}, gl_list={20:0}] [L713] CALL gl_seek_max() VAL [gl_list={20:0}] [L690] struct list_head *pos, *max_pos = ((void *)0); [L691] int max; VAL [gl_list={20:0}, pos={0:0}] [L692] CALL list_empty(&gl_list) VAL [gl_list={20:0}, head={20:0}] [L625] EXPR, FCALL head->next VAL [gl_list={20:0}, head={20:0}, head={20:0}, head->next={29:4}] [L625] RET return head->next == head; [L692] list_empty(&gl_list) VAL [gl_list={20:0}, list_empty(&gl_list)=0, pos={0:0}] [L692] COND FALSE !(list_empty(&gl_list)) [L695] EXPR, FCALL gl_list.next VAL [gl_list={20:0}, gl_list.next={29:4}, pos={0:0}] [L695] max_pos = gl_list.next [L696] CALL, EXPR val_from_node(max_pos) VAL [gl_list={20:0}, head={29:4}] [L685] struct node *entry = ((struct node *)((char *)(head)-(unsigned long)(&((struct node *)0)->linkage))); VAL [entry={29:0}, gl_list={20:0}, head={29:4}, head={29:4}] [L686] EXPR, FCALL entry->value VAL [entry={29:0}, entry->value=0, gl_list={20:0}, head={29:4}, head={29:4}] [L686] RET return entry->value; [L696] EXPR val_from_node(max_pos) VAL [gl_list={20:0}, pos={29:4}, val_from_node(max_pos)=0] [L696] max = val_from_node(max_pos) [L698] EXPR, FCALL (max_pos)->next VAL [(max_pos)->next={20:0}, gl_list={20:0}, max=0, pos={29:4}] [L698] pos = (max_pos)->next [L698] COND TRUE pos != (max_pos) VAL [gl_list={20:0}, max=0, pos={20:0}, pos={29:4}] [L699] CALL val_from_node(pos) VAL [gl_list={20:0}, head={20:0}] [L685] struct node *entry = ((struct node *)((char *)(head)-(unsigned long)(&((struct node *)0)->linkage))); VAL [entry={20:-4}, gl_list={20:0}, head={20:0}, head={20:0}] [L686] FCALL entry->value VAL [entry={20:-4}, gl_list={20:0}, head={20:0}, head={20:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 14 procedures, 188 locations, 63 error locations. UNSAFE Result, 38.9s OverallTime, 31 OverallIterations, 2 TraceHistogramMax, 25.9s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 4005 SDtfs, 5369 SDslu, 17488 SDs, 0 SdLazy, 22535 SolverSat, 1218 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 16.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 742 GetRequests, 204 SyntacticMatches, 14 SemanticMatches, 524 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3176 ImplicationChecksByTransitivity, 14.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=296occurred in iteration=8, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, AutomataMinimizationStatistics: 0.5s AutomataMinimizationTime, 30 MinimizatonAttempts, 661 StatesRemovedByMinimization, 21 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.1s SsaConstructionTime, 0.6s SatisfiabilityAnalysisTime, 10.9s InterpolantComputationTime, 1504 NumberOfCodeBlocks, 1504 NumberOfCodeBlocksAsserted, 34 NumberOfCheckSat, 1394 ConstructedInterpolants, 31 QuantifiedInterpolants, 581356 SizeOfPredicates, 60 NumberOfNonLiveVariables, 920 ConjunctsInSsa, 169 ConjunctsInUnsatCore, 33 InterpolantComputations, 28 PerfectInterpolantSequences, 67/98 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, REUSE_STATISTICS: No data available RESULT: Ultimate proved your program to be incorrect! Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/test-0137_false-valid-deref.i_svcomp-DerefFreeMemtrack-32bit-Automizer_Camel+AI_EQ.epf_AutomizerC.xml/Csv-Benchmark-0-2018-01-24_11-52-43-289.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/test-0137_false-valid-deref.i_svcomp-DerefFreeMemtrack-32bit-Automizer_Camel+AI_EQ.epf_AutomizerC.xml/Csv-TraceAbstractionBenchmarks-0-2018-01-24_11-52-43-289.csv Received shutdown request...