java -Xmx6000000000 -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data ./data --generate-csv --csv-dir ../../../releaseScripts/default/UAutomizer-linux/csv -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/ai/eq-bench/svcomp-DerefFreeMemtrack-32bit-Automizer_Taipan+AI_EQ_imprecise.epf -i ../../../trunk/examples/svcomp/memsafety/test-0134_true-valid-memsafety.i -------------------------------------------------------------------------------- This is Ultimate 0.1.23-6b94a2f [2018-01-24 17:00:33,029 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-01-24 17:00:33,032 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-01-24 17:00:33,045 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-01-24 17:00:33,045 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-01-24 17:00:33,046 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-01-24 17:00:33,047 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-01-24 17:00:33,049 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-01-24 17:00:33,051 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-01-24 17:00:33,051 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-01-24 17:00:33,052 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-01-24 17:00:33,052 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-01-24 17:00:33,053 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-01-24 17:00:33,054 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-01-24 17:00:33,054 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-01-24 17:00:33,057 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-01-24 17:00:33,059 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-01-24 17:00:33,061 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-01-24 17:00:33,062 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-01-24 17:00:33,063 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-01-24 17:00:33,066 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-01-24 17:00:33,066 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-01-24 17:00:33,066 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-01-24 17:00:33,067 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-01-24 17:00:33,068 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-01-24 17:00:33,070 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-01-24 17:00:33,070 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-01-24 17:00:33,070 INFO L177 SettingsManager]: PEA to Boogie provides no preferences, ignoring... [2018-01-24 17:00:33,071 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-01-24 17:00:33,071 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-01-24 17:00:33,071 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-01-24 17:00:33,072 INFO L98 SettingsManager]: Beginning loading settings from /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/ai/eq-bench/svcomp-DerefFreeMemtrack-32bit-Automizer_Taipan+AI_EQ_imprecise.epf [2018-01-24 17:00:33,082 INFO L110 SettingsManager]: Loading preferences was successful [2018-01-24 17:00:33,082 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-01-24 17:00:33,083 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-01-24 17:00:33,083 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-01-24 17:00:33,083 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-01-24 17:00:33,083 INFO L133 SettingsManager]: * Deactivate Weak Equivalences=true [2018-01-24 17:00:33,084 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=VPDomain [2018-01-24 17:00:33,084 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-01-24 17:00:33,085 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-01-24 17:00:33,085 INFO L133 SettingsManager]: * sizeof long=4 [2018-01-24 17:00:33,085 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-01-24 17:00:33,085 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-01-24 17:00:33,085 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-01-24 17:00:33,085 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-01-24 17:00:33,086 INFO L133 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2018-01-24 17:00:33,086 INFO L133 SettingsManager]: * Bitprecise bitfields=true [2018-01-24 17:00:33,086 INFO L133 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2018-01-24 17:00:33,086 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-01-24 17:00:33,086 INFO L133 SettingsManager]: * sizeof long double=12 [2018-01-24 17:00:33,087 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-01-24 17:00:33,087 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-01-24 17:00:33,087 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-01-24 17:00:33,087 INFO L133 SettingsManager]: * Add additional assume for each assert=false [2018-01-24 17:00:33,087 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-01-24 17:00:33,088 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-01-24 17:00:33,088 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-01-24 17:00:33,088 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-01-24 17:00:33,088 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-01-24 17:00:33,088 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-01-24 17:00:33,089 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-01-24 17:00:33,089 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-01-24 17:00:33,089 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-01-24 17:00:33,089 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-01-24 17:00:33,089 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-01-24 17:00:33,090 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-01-24 17:00:33,090 INFO L133 SettingsManager]: * TransformationType=HEAP_SEPARATOR [2018-01-24 17:00:33,124 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-01-24 17:00:33,134 INFO L266 ainManager$Toolchain]: [Toolchain 1]: Parser(s) successfully initialized [2018-01-24 17:00:33,137 INFO L222 ainManager$Toolchain]: [Toolchain 1]: Toolchain data selected. [2018-01-24 17:00:33,138 INFO L271 PluginConnector]: Initializing CDTParser... [2018-01-24 17:00:33,139 INFO L276 PluginConnector]: CDTParser initialized [2018-01-24 17:00:33,139 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/memsafety/test-0134_true-valid-memsafety.i [2018-01-24 17:00:33,311 INFO L304 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-01-24 17:00:33,318 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-01-24 17:00:33,319 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-01-24 17:00:33,319 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-01-24 17:00:33,327 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-01-24 17:00:33,328 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.01 05:00:33" (1/1) ... [2018-01-24 17:00:33,332 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 05:00:33, skipping insertion in model container [2018-01-24 17:00:33,332 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.01 05:00:33" (1/1) ... [2018-01-24 17:00:33,352 INFO L153 Dispatcher]: Using SV-COMP mode [2018-01-24 17:00:33,396 INFO L153 Dispatcher]: Using SV-COMP mode [2018-01-24 17:00:33,528 INFO L450 PostProcessor]: Settings: Checked method=main [2018-01-24 17:00:33,551 INFO L450 PostProcessor]: Settings: Checked method=main [2018-01-24 17:00:33,562 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 05:00:33 WrapperNode [2018-01-24 17:00:33,562 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-01-24 17:00:33,563 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-01-24 17:00:33,563 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-01-24 17:00:33,563 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-01-24 17:00:33,576 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 05:00:33" (1/1) ... [2018-01-24 17:00:33,577 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 05:00:33" (1/1) ... [2018-01-24 17:00:33,586 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 05:00:33" (1/1) ... [2018-01-24 17:00:33,587 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 05:00:33" (1/1) ... [2018-01-24 17:00:33,596 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 05:00:33" (1/1) ... [2018-01-24 17:00:33,599 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 05:00:33" (1/1) ... [2018-01-24 17:00:33,602 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 05:00:33" (1/1) ... [2018-01-24 17:00:33,604 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-01-24 17:00:33,604 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-01-24 17:00:33,604 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-01-24 17:00:33,605 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-01-24 17:00:33,605 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 05:00:33" (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 17:00:33,654 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-01-24 17:00:33,654 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-01-24 17:00:33,654 INFO L136 BoogieDeclarations]: Found implementation of procedure list_empty [2018-01-24 17:00:33,654 INFO L136 BoogieDeclarations]: Found implementation of procedure __list_add [2018-01-24 17:00:33,654 INFO L136 BoogieDeclarations]: Found implementation of procedure __list_del [2018-01-24 17:00:33,654 INFO L136 BoogieDeclarations]: Found implementation of procedure list_add [2018-01-24 17:00:33,654 INFO L136 BoogieDeclarations]: Found implementation of procedure list_del [2018-01-24 17:00:33,654 INFO L136 BoogieDeclarations]: Found implementation of procedure list_move [2018-01-24 17:00:33,654 INFO L136 BoogieDeclarations]: Found implementation of procedure gl_insert [2018-01-24 17:00:33,655 INFO L136 BoogieDeclarations]: Found implementation of procedure gl_read [2018-01-24 17:00:33,655 INFO L136 BoogieDeclarations]: Found implementation of procedure gl_destroy [2018-01-24 17:00:33,655 INFO L136 BoogieDeclarations]: Found implementation of procedure val_from_node [2018-01-24 17:00:33,655 INFO L136 BoogieDeclarations]: Found implementation of procedure gl_seek_max [2018-01-24 17:00:33,655 INFO L136 BoogieDeclarations]: Found implementation of procedure gl_sort [2018-01-24 17:00:33,655 INFO L136 BoogieDeclarations]: Found implementation of procedure main [2018-01-24 17:00:33,655 INFO L128 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2018-01-24 17:00:33,655 INFO L128 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2018-01-24 17:00:33,655 INFO L128 BoogieDeclarations]: Found specification of procedure write~int [2018-01-24 17:00:33,656 INFO L128 BoogieDeclarations]: Found specification of procedure read~int [2018-01-24 17:00:33,656 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.free [2018-01-24 17:00:33,656 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-01-24 17:00:33,656 INFO L128 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-01-24 17:00:33,656 INFO L128 BoogieDeclarations]: Found specification of procedure free [2018-01-24 17:00:33,656 INFO L128 BoogieDeclarations]: Found specification of procedure abort [2018-01-24 17:00:33,656 INFO L128 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2018-01-24 17:00:33,656 INFO L128 BoogieDeclarations]: Found specification of procedure list_empty [2018-01-24 17:00:33,656 INFO L128 BoogieDeclarations]: Found specification of procedure __list_add [2018-01-24 17:00:33,657 INFO L128 BoogieDeclarations]: Found specification of procedure __list_del [2018-01-24 17:00:33,657 INFO L128 BoogieDeclarations]: Found specification of procedure list_add [2018-01-24 17:00:33,657 INFO L128 BoogieDeclarations]: Found specification of procedure list_del [2018-01-24 17:00:33,657 INFO L128 BoogieDeclarations]: Found specification of procedure list_move [2018-01-24 17:00:33,657 INFO L128 BoogieDeclarations]: Found specification of procedure gl_insert [2018-01-24 17:00:33,657 INFO L128 BoogieDeclarations]: Found specification of procedure gl_read [2018-01-24 17:00:33,657 INFO L128 BoogieDeclarations]: Found specification of procedure gl_destroy [2018-01-24 17:00:33,657 INFO L128 BoogieDeclarations]: Found specification of procedure val_from_node [2018-01-24 17:00:33,657 INFO L128 BoogieDeclarations]: Found specification of procedure gl_seek_max [2018-01-24 17:00:33,657 INFO L128 BoogieDeclarations]: Found specification of procedure gl_sort [2018-01-24 17:00:33,657 INFO L128 BoogieDeclarations]: Found specification of procedure main [2018-01-24 17:00:33,658 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-01-24 17:00:33,658 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-01-24 17:00:34,227 INFO L257 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-01-24 17:00:34,227 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.01 05:00:34 BoogieIcfgContainer [2018-01-24 17:00:34,228 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-01-24 17:00:34,228 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-01-24 17:00:34,228 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-01-24 17:00:34,230 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-01-24 17:00:34,230 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.01 05:00:33" (1/3) ... [2018-01-24 17:00:34,231 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@641d2d9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.01 05:00:34, skipping insertion in model container [2018-01-24 17:00:34,231 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 05:00:33" (2/3) ... [2018-01-24 17:00:34,232 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@641d2d9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.01 05:00:34, skipping insertion in model container [2018-01-24 17:00:34,232 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.01 05:00:34" (3/3) ... [2018-01-24 17:00:34,233 INFO L105 eAbstractionObserver]: Analyzing ICFG test-0134_true-valid-memsafety.i [2018-01-24 17:00:34,240 INFO L130 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-01-24 17:00:34,246 INFO L142 ceAbstractionStarter]: Appying trace abstraction to program that has 55 error locations. [2018-01-24 17:00:34,301 INFO L322 AbstractCegarLoop]: Interprodecural is true [2018-01-24 17:00:34,301 INFO L323 AbstractCegarLoop]: Hoare is true [2018-01-24 17:00:34,301 INFO L324 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-01-24 17:00:34,301 INFO L325 AbstractCegarLoop]: Backedges is TWOTRACK [2018-01-24 17:00:34,301 INFO L326 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-01-24 17:00:34,302 INFO L327 AbstractCegarLoop]: Difference is false [2018-01-24 17:00:34,302 INFO L328 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-01-24 17:00:34,302 INFO L333 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-01-24 17:00:34,303 INFO L87 2NestedWordAutomaton]: Mode: main mode - execution starts in main procedure [2018-01-24 17:00:34,327 INFO L276 IsEmpty]: Start isEmpty. Operand 179 states. [2018-01-24 17:00:34,332 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2018-01-24 17:00:34,332 INFO L314 BasicCegarLoop]: Found error trace [2018-01-24 17:00:34,333 INFO L322 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2018-01-24 17:00:34,333 INFO L371 AbstractCegarLoop]: === Iteration 1 === [__list_addErr1RequiresViolation, __list_addErr3RequiresViolation, __list_addErr0RequiresViolation, __list_addErr2RequiresViolation, __list_addErr4RequiresViolation, __list_addErr7RequiresViolation, __list_addErr5RequiresViolation, __list_addErr6RequiresViolation, val_from_nodeErr0RequiresViolation, val_from_nodeErr1RequiresViolation, gl_sortErr2RequiresViolation, gl_sortErr0RequiresViolation, gl_sortErr1RequiresViolation, gl_sortErr3RequiresViolation, list_emptyErr0RequiresViolation, list_emptyErr1RequiresViolation, mainErr0EnsuresViolation, __list_delErr0RequiresViolation, __list_delErr2RequiresViolation, __list_delErr3RequiresViolation, __list_delErr1RequiresViolation, gl_destroyErr4RequiresViolation, gl_destroyErr2RequiresViolation, gl_destroyErr0RequiresViolation, gl_destroyErr1RequiresViolation, gl_destroyErr6RequiresViolation, gl_destroyErr7RequiresViolation, gl_destroyErr3RequiresViolation, gl_destroyErr5RequiresViolation, ULTIMATE.initErr3RequiresViolation, ULTIMATE.initErr1RequiresViolation, ULTIMATE.initErr2RequiresViolation, ULTIMATE.initErr0RequiresViolation, list_delErr2RequiresViolation, list_delErr4RequiresViolation, list_delErr3RequiresViolation, list_delErr1RequiresViolation, list_delErr7RequiresViolation, list_delErr5RequiresViolation, list_delErr0RequiresViolation, list_delErr6RequiresViolation, list_moveErr0RequiresViolation, list_moveErr3RequiresViolation, list_moveErr2RequiresViolation, list_moveErr1RequiresViolation, list_addErr1RequiresViolation, list_addErr0RequiresViolation, gl_insertErr0RequiresViolation, gl_insertErr1RequiresViolation, gl_seek_maxErr0RequiresViolation, gl_seek_maxErr2RequiresViolation, gl_seek_maxErr1RequiresViolation, gl_seek_maxErr5RequiresViolation, gl_seek_maxErr3RequiresViolation, gl_seek_maxErr4RequiresViolation]=== [2018-01-24 17:00:34,337 INFO L82 PathProgramCache]: Analyzing trace with hash 8457694, now seen corresponding path program 1 times [2018-01-24 17:00:34,339 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-24 17:00:34,381 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 17:00:34,382 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-24 17:00:34,382 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 17:00:34,382 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-24 17:00:34,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-24 17:00:34,440 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-24 17:00:34,498 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 17:00:34,500 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-24 17:00:34,501 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-01-24 17:00:34,501 INFO L252 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-01-24 17:00:34,504 INFO L409 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-01-24 17:00:34,614 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-01-24 17:00:34,615 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-01-24 17:00:34,617 INFO L87 Difference]: Start difference. First operand 179 states. Second operand 3 states. [2018-01-24 17:00:34,830 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-24 17:00:34,830 INFO L93 Difference]: Finished difference Result 350 states and 392 transitions. [2018-01-24 17:00:34,830 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-01-24 17:00:34,832 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 4 [2018-01-24 17:00:34,832 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-24 17:00:34,844 INFO L225 Difference]: With dead ends: 350 [2018-01-24 17:00:34,844 INFO L226 Difference]: Without dead ends: 179 [2018-01-24 17:00:34,848 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 17:00:34,862 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 179 states. [2018-01-24 17:00:34,899 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 179 to 178. [2018-01-24 17:00:34,900 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 178 states. [2018-01-24 17:00:34,904 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 178 states to 178 states and 191 transitions. [2018-01-24 17:00:34,905 INFO L78 Accepts]: Start accepts. Automaton has 178 states and 191 transitions. Word has length 4 [2018-01-24 17:00:34,906 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-24 17:00:34,906 INFO L432 AbstractCegarLoop]: Abstraction has 178 states and 191 transitions. [2018-01-24 17:00:34,906 INFO L433 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-01-24 17:00:34,906 INFO L276 IsEmpty]: Start isEmpty. Operand 178 states and 191 transitions. [2018-01-24 17:00:34,906 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2018-01-24 17:00:34,906 INFO L314 BasicCegarLoop]: Found error trace [2018-01-24 17:00:34,906 INFO L322 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2018-01-24 17:00:34,906 INFO L371 AbstractCegarLoop]: === Iteration 2 === [__list_addErr1RequiresViolation, __list_addErr3RequiresViolation, __list_addErr0RequiresViolation, __list_addErr2RequiresViolation, __list_addErr4RequiresViolation, __list_addErr7RequiresViolation, __list_addErr5RequiresViolation, __list_addErr6RequiresViolation, val_from_nodeErr0RequiresViolation, val_from_nodeErr1RequiresViolation, gl_sortErr2RequiresViolation, gl_sortErr0RequiresViolation, gl_sortErr1RequiresViolation, gl_sortErr3RequiresViolation, list_emptyErr0RequiresViolation, list_emptyErr1RequiresViolation, mainErr0EnsuresViolation, __list_delErr0RequiresViolation, __list_delErr2RequiresViolation, __list_delErr3RequiresViolation, __list_delErr1RequiresViolation, gl_destroyErr4RequiresViolation, gl_destroyErr2RequiresViolation, gl_destroyErr0RequiresViolation, gl_destroyErr1RequiresViolation, gl_destroyErr6RequiresViolation, gl_destroyErr7RequiresViolation, gl_destroyErr3RequiresViolation, gl_destroyErr5RequiresViolation, ULTIMATE.initErr3RequiresViolation, ULTIMATE.initErr1RequiresViolation, ULTIMATE.initErr2RequiresViolation, ULTIMATE.initErr0RequiresViolation, list_delErr2RequiresViolation, list_delErr4RequiresViolation, list_delErr3RequiresViolation, list_delErr1RequiresViolation, list_delErr7RequiresViolation, list_delErr5RequiresViolation, list_delErr0RequiresViolation, list_delErr6RequiresViolation, list_moveErr0RequiresViolation, list_moveErr3RequiresViolation, list_moveErr2RequiresViolation, list_moveErr1RequiresViolation, list_addErr1RequiresViolation, list_addErr0RequiresViolation, gl_insertErr0RequiresViolation, gl_insertErr1RequiresViolation, gl_seek_maxErr0RequiresViolation, gl_seek_maxErr2RequiresViolation, gl_seek_maxErr1RequiresViolation, gl_seek_maxErr5RequiresViolation, gl_seek_maxErr3RequiresViolation, gl_seek_maxErr4RequiresViolation]=== [2018-01-24 17:00:34,907 INFO L82 PathProgramCache]: Analyzing trace with hash 8457695, now seen corresponding path program 1 times [2018-01-24 17:00:34,907 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-24 17:00:34,908 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 17:00:34,908 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-24 17:00:34,908 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 17:00:34,908 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-24 17:00:34,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-24 17:00:34,922 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-24 17:00:34,969 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 17:00:34,969 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-24 17:00:34,969 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-01-24 17:00:34,969 INFO L252 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-01-24 17:00:34,971 INFO L409 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-01-24 17:00:34,971 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-01-24 17:00:34,971 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-01-24 17:00:34,971 INFO L87 Difference]: Start difference. First operand 178 states and 191 transitions. Second operand 3 states. [2018-01-24 17:00:35,141 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-24 17:00:35,141 INFO L93 Difference]: Finished difference Result 182 states and 196 transitions. [2018-01-24 17:00:35,141 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-01-24 17:00:35,142 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 4 [2018-01-24 17:00:35,142 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-24 17:00:35,145 INFO L225 Difference]: With dead ends: 182 [2018-01-24 17:00:35,145 INFO L226 Difference]: Without dead ends: 180 [2018-01-24 17:00:35,146 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 17:00:35,147 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 180 states. [2018-01-24 17:00:35,163 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 180 to 176. [2018-01-24 17:00:35,163 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 176 states. [2018-01-24 17:00:35,165 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 176 states to 176 states and 189 transitions. [2018-01-24 17:00:35,166 INFO L78 Accepts]: Start accepts. Automaton has 176 states and 189 transitions. Word has length 4 [2018-01-24 17:00:35,166 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-24 17:00:35,166 INFO L432 AbstractCegarLoop]: Abstraction has 176 states and 189 transitions. [2018-01-24 17:00:35,166 INFO L433 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-01-24 17:00:35,166 INFO L276 IsEmpty]: Start isEmpty. Operand 176 states and 189 transitions. [2018-01-24 17:00:35,167 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2018-01-24 17:00:35,167 INFO L314 BasicCegarLoop]: Found error trace [2018-01-24 17:00:35,167 INFO L322 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-24 17:00:35,167 INFO L371 AbstractCegarLoop]: === Iteration 3 === [__list_addErr1RequiresViolation, __list_addErr3RequiresViolation, __list_addErr0RequiresViolation, __list_addErr2RequiresViolation, __list_addErr4RequiresViolation, __list_addErr7RequiresViolation, __list_addErr5RequiresViolation, __list_addErr6RequiresViolation, val_from_nodeErr0RequiresViolation, val_from_nodeErr1RequiresViolation, gl_sortErr2RequiresViolation, gl_sortErr0RequiresViolation, gl_sortErr1RequiresViolation, gl_sortErr3RequiresViolation, list_emptyErr0RequiresViolation, list_emptyErr1RequiresViolation, mainErr0EnsuresViolation, __list_delErr0RequiresViolation, __list_delErr2RequiresViolation, __list_delErr3RequiresViolation, __list_delErr1RequiresViolation, gl_destroyErr4RequiresViolation, gl_destroyErr2RequiresViolation, gl_destroyErr0RequiresViolation, gl_destroyErr1RequiresViolation, gl_destroyErr6RequiresViolation, gl_destroyErr7RequiresViolation, gl_destroyErr3RequiresViolation, gl_destroyErr5RequiresViolation, ULTIMATE.initErr3RequiresViolation, ULTIMATE.initErr1RequiresViolation, ULTIMATE.initErr2RequiresViolation, ULTIMATE.initErr0RequiresViolation, list_delErr2RequiresViolation, list_delErr4RequiresViolation, list_delErr3RequiresViolation, list_delErr1RequiresViolation, list_delErr7RequiresViolation, list_delErr5RequiresViolation, list_delErr0RequiresViolation, list_delErr6RequiresViolation, list_moveErr0RequiresViolation, list_moveErr3RequiresViolation, list_moveErr2RequiresViolation, list_moveErr1RequiresViolation, list_addErr1RequiresViolation, list_addErr0RequiresViolation, gl_insertErr0RequiresViolation, gl_insertErr1RequiresViolation, gl_seek_maxErr0RequiresViolation, gl_seek_maxErr2RequiresViolation, gl_seek_maxErr1RequiresViolation, gl_seek_maxErr5RequiresViolation, gl_seek_maxErr3RequiresViolation, gl_seek_maxErr4RequiresViolation]=== [2018-01-24 17:00:35,168 INFO L82 PathProgramCache]: Analyzing trace with hash 809839361, now seen corresponding path program 1 times [2018-01-24 17:00:35,168 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-24 17:00:35,169 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 17:00:35,169 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-24 17:00:35,169 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 17:00:35,169 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-24 17:00:35,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-24 17:00:35,195 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-24 17:00:35,255 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 17:00:35,255 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-24 17:00:35,255 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-01-24 17:00:35,255 INFO L252 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-01-24 17:00:35,256 INFO L409 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-01-24 17:00:35,256 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-01-24 17:00:35,256 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-01-24 17:00:35,256 INFO L87 Difference]: Start difference. First operand 176 states and 189 transitions. Second operand 4 states. [2018-01-24 17:00:35,419 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-24 17:00:35,419 INFO L93 Difference]: Finished difference Result 176 states and 189 transitions. [2018-01-24 17:00:35,419 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-01-24 17:00:35,419 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 16 [2018-01-24 17:00:35,420 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-24 17:00:35,421 INFO L225 Difference]: With dead ends: 176 [2018-01-24 17:00:35,421 INFO L226 Difference]: Without dead ends: 175 [2018-01-24 17:00:35,422 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 17:00:35,422 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 175 states. [2018-01-24 17:00:35,436 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 175 to 175. [2018-01-24 17:00:35,436 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 175 states. [2018-01-24 17:00:35,438 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 175 states to 175 states and 188 transitions. [2018-01-24 17:00:35,438 INFO L78 Accepts]: Start accepts. Automaton has 175 states and 188 transitions. Word has length 16 [2018-01-24 17:00:35,439 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-24 17:00:35,439 INFO L432 AbstractCegarLoop]: Abstraction has 175 states and 188 transitions. [2018-01-24 17:00:35,439 INFO L433 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-01-24 17:00:35,439 INFO L276 IsEmpty]: Start isEmpty. Operand 175 states and 188 transitions. [2018-01-24 17:00:35,439 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2018-01-24 17:00:35,439 INFO L314 BasicCegarLoop]: Found error trace [2018-01-24 17:00:35,439 INFO L322 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-24 17:00:35,439 INFO L371 AbstractCegarLoop]: === Iteration 4 === [__list_addErr1RequiresViolation, __list_addErr3RequiresViolation, __list_addErr0RequiresViolation, __list_addErr2RequiresViolation, __list_addErr4RequiresViolation, __list_addErr7RequiresViolation, __list_addErr5RequiresViolation, __list_addErr6RequiresViolation, val_from_nodeErr0RequiresViolation, val_from_nodeErr1RequiresViolation, gl_sortErr2RequiresViolation, gl_sortErr0RequiresViolation, gl_sortErr1RequiresViolation, gl_sortErr3RequiresViolation, list_emptyErr0RequiresViolation, list_emptyErr1RequiresViolation, mainErr0EnsuresViolation, __list_delErr0RequiresViolation, __list_delErr2RequiresViolation, __list_delErr3RequiresViolation, __list_delErr1RequiresViolation, gl_destroyErr4RequiresViolation, gl_destroyErr2RequiresViolation, gl_destroyErr0RequiresViolation, gl_destroyErr1RequiresViolation, gl_destroyErr6RequiresViolation, gl_destroyErr7RequiresViolation, gl_destroyErr3RequiresViolation, gl_destroyErr5RequiresViolation, ULTIMATE.initErr3RequiresViolation, ULTIMATE.initErr1RequiresViolation, ULTIMATE.initErr2RequiresViolation, ULTIMATE.initErr0RequiresViolation, list_delErr2RequiresViolation, list_delErr4RequiresViolation, list_delErr3RequiresViolation, list_delErr1RequiresViolation, list_delErr7RequiresViolation, list_delErr5RequiresViolation, list_delErr0RequiresViolation, list_delErr6RequiresViolation, list_moveErr0RequiresViolation, list_moveErr3RequiresViolation, list_moveErr2RequiresViolation, list_moveErr1RequiresViolation, list_addErr1RequiresViolation, list_addErr0RequiresViolation, gl_insertErr0RequiresViolation, gl_insertErr1RequiresViolation, gl_seek_maxErr0RequiresViolation, gl_seek_maxErr2RequiresViolation, gl_seek_maxErr1RequiresViolation, gl_seek_maxErr5RequiresViolation, gl_seek_maxErr3RequiresViolation, gl_seek_maxErr4RequiresViolation]=== [2018-01-24 17:00:35,440 INFO L82 PathProgramCache]: Analyzing trace with hash 809839362, now seen corresponding path program 1 times [2018-01-24 17:00:35,440 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-24 17:00:35,441 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 17:00:35,441 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-24 17:00:35,441 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 17:00:35,441 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-24 17:00:35,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-24 17:00:35,462 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-24 17:00:35,538 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 17:00:35,538 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-24 17:00:35,618 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-01-24 17:00:35,619 INFO L252 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-01-24 17:00:35,619 INFO L409 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-01-24 17:00:35,619 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-01-24 17:00:35,619 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-01-24 17:00:35,619 INFO L87 Difference]: Start difference. First operand 175 states and 188 transitions. Second operand 4 states. [2018-01-24 17:00:35,758 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-24 17:00:35,759 INFO L93 Difference]: Finished difference Result 175 states and 188 transitions. [2018-01-24 17:00:35,759 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-01-24 17:00:35,759 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 16 [2018-01-24 17:00:35,759 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-24 17:00:35,760 INFO L225 Difference]: With dead ends: 175 [2018-01-24 17:00:35,760 INFO L226 Difference]: Without dead ends: 174 [2018-01-24 17:00:35,761 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 17:00:35,761 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 174 states. [2018-01-24 17:00:35,771 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 174 to 174. [2018-01-24 17:00:35,772 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 174 states. [2018-01-24 17:00:35,774 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 174 states to 174 states and 187 transitions. [2018-01-24 17:00:35,774 INFO L78 Accepts]: Start accepts. Automaton has 174 states and 187 transitions. Word has length 16 [2018-01-24 17:00:35,774 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-24 17:00:35,775 INFO L432 AbstractCegarLoop]: Abstraction has 174 states and 187 transitions. [2018-01-24 17:00:35,775 INFO L433 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-01-24 17:00:35,775 INFO L276 IsEmpty]: Start isEmpty. Operand 174 states and 187 transitions. [2018-01-24 17:00:35,776 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2018-01-24 17:00:35,776 INFO L314 BasicCegarLoop]: Found error trace [2018-01-24 17:00:35,776 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 17:00:35,776 INFO L371 AbstractCegarLoop]: === Iteration 5 === [__list_addErr1RequiresViolation, __list_addErr3RequiresViolation, __list_addErr0RequiresViolation, __list_addErr2RequiresViolation, __list_addErr4RequiresViolation, __list_addErr7RequiresViolation, __list_addErr5RequiresViolation, __list_addErr6RequiresViolation, val_from_nodeErr0RequiresViolation, val_from_nodeErr1RequiresViolation, gl_sortErr2RequiresViolation, gl_sortErr0RequiresViolation, gl_sortErr1RequiresViolation, gl_sortErr3RequiresViolation, list_emptyErr0RequiresViolation, list_emptyErr1RequiresViolation, mainErr0EnsuresViolation, __list_delErr0RequiresViolation, __list_delErr2RequiresViolation, __list_delErr3RequiresViolation, __list_delErr1RequiresViolation, gl_destroyErr4RequiresViolation, gl_destroyErr2RequiresViolation, gl_destroyErr0RequiresViolation, gl_destroyErr1RequiresViolation, gl_destroyErr6RequiresViolation, gl_destroyErr7RequiresViolation, gl_destroyErr3RequiresViolation, gl_destroyErr5RequiresViolation, ULTIMATE.initErr3RequiresViolation, ULTIMATE.initErr1RequiresViolation, ULTIMATE.initErr2RequiresViolation, ULTIMATE.initErr0RequiresViolation, list_delErr2RequiresViolation, list_delErr4RequiresViolation, list_delErr3RequiresViolation, list_delErr1RequiresViolation, list_delErr7RequiresViolation, list_delErr5RequiresViolation, list_delErr0RequiresViolation, list_delErr6RequiresViolation, list_moveErr0RequiresViolation, list_moveErr3RequiresViolation, list_moveErr2RequiresViolation, list_moveErr1RequiresViolation, list_addErr1RequiresViolation, list_addErr0RequiresViolation, gl_insertErr0RequiresViolation, gl_insertErr1RequiresViolation, gl_seek_maxErr0RequiresViolation, gl_seek_maxErr2RequiresViolation, gl_seek_maxErr1RequiresViolation, gl_seek_maxErr5RequiresViolation, gl_seek_maxErr3RequiresViolation, gl_seek_maxErr4RequiresViolation]=== [2018-01-24 17:00:35,777 INFO L82 PathProgramCache]: Analyzing trace with hash 1093319294, now seen corresponding path program 1 times [2018-01-24 17:00:35,777 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-24 17:00:35,778 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 17:00:35,778 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-24 17:00:35,778 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 17:00:35,778 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-24 17:00:35,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-24 17:00:35,801 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-24 17:00:35,930 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 17:00:35,930 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-24 17:00:35,930 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-01-24 17:00:35,930 INFO L252 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-01-24 17:00:35,931 INFO L409 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-01-24 17:00:35,934 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-01-24 17:00:35,934 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2018-01-24 17:00:35,934 INFO L87 Difference]: Start difference. First operand 174 states and 187 transitions. Second operand 7 states. [2018-01-24 17:00:36,256 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-24 17:00:36,256 INFO L93 Difference]: Finished difference Result 183 states and 195 transitions. [2018-01-24 17:00:36,257 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-01-24 17:00:36,257 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 19 [2018-01-24 17:00:36,257 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-24 17:00:36,258 INFO L225 Difference]: With dead ends: 183 [2018-01-24 17:00:36,259 INFO L226 Difference]: Without dead ends: 182 [2018-01-24 17:00:36,259 INFO L525 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2018-01-24 17:00:36,259 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 182 states. [2018-01-24 17:00:36,269 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 182 to 180. [2018-01-24 17:00:36,270 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 180 states. [2018-01-24 17:00:36,271 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 180 states to 180 states and 194 transitions. [2018-01-24 17:00:36,272 INFO L78 Accepts]: Start accepts. Automaton has 180 states and 194 transitions. Word has length 19 [2018-01-24 17:00:36,272 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-24 17:00:36,272 INFO L432 AbstractCegarLoop]: Abstraction has 180 states and 194 transitions. [2018-01-24 17:00:36,272 INFO L433 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-01-24 17:00:36,272 INFO L276 IsEmpty]: Start isEmpty. Operand 180 states and 194 transitions. [2018-01-24 17:00:36,273 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2018-01-24 17:00:36,273 INFO L314 BasicCegarLoop]: Found error trace [2018-01-24 17:00:36,273 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 17:00:36,273 INFO L371 AbstractCegarLoop]: === Iteration 6 === [__list_addErr1RequiresViolation, __list_addErr3RequiresViolation, __list_addErr0RequiresViolation, __list_addErr2RequiresViolation, __list_addErr4RequiresViolation, __list_addErr7RequiresViolation, __list_addErr5RequiresViolation, __list_addErr6RequiresViolation, val_from_nodeErr0RequiresViolation, val_from_nodeErr1RequiresViolation, gl_sortErr2RequiresViolation, gl_sortErr0RequiresViolation, gl_sortErr1RequiresViolation, gl_sortErr3RequiresViolation, list_emptyErr0RequiresViolation, list_emptyErr1RequiresViolation, mainErr0EnsuresViolation, __list_delErr0RequiresViolation, __list_delErr2RequiresViolation, __list_delErr3RequiresViolation, __list_delErr1RequiresViolation, gl_destroyErr4RequiresViolation, gl_destroyErr2RequiresViolation, gl_destroyErr0RequiresViolation, gl_destroyErr1RequiresViolation, gl_destroyErr6RequiresViolation, gl_destroyErr7RequiresViolation, gl_destroyErr3RequiresViolation, gl_destroyErr5RequiresViolation, ULTIMATE.initErr3RequiresViolation, ULTIMATE.initErr1RequiresViolation, ULTIMATE.initErr2RequiresViolation, ULTIMATE.initErr0RequiresViolation, list_delErr2RequiresViolation, list_delErr4RequiresViolation, list_delErr3RequiresViolation, list_delErr1RequiresViolation, list_delErr7RequiresViolation, list_delErr5RequiresViolation, list_delErr0RequiresViolation, list_delErr6RequiresViolation, list_moveErr0RequiresViolation, list_moveErr3RequiresViolation, list_moveErr2RequiresViolation, list_moveErr1RequiresViolation, list_addErr1RequiresViolation, list_addErr0RequiresViolation, gl_insertErr0RequiresViolation, gl_insertErr1RequiresViolation, gl_seek_maxErr0RequiresViolation, gl_seek_maxErr2RequiresViolation, gl_seek_maxErr1RequiresViolation, gl_seek_maxErr5RequiresViolation, gl_seek_maxErr3RequiresViolation, gl_seek_maxErr4RequiresViolation]=== [2018-01-24 17:00:36,273 INFO L82 PathProgramCache]: Analyzing trace with hash 1093319295, now seen corresponding path program 1 times [2018-01-24 17:00:36,273 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-24 17:00:36,274 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 17:00:36,274 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-24 17:00:36,275 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 17:00:36,275 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-24 17:00:36,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-24 17:00:36,295 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-24 17:00:36,440 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 17:00:36,441 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-24 17:00:36,441 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2018-01-24 17:00:36,441 INFO L252 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-01-24 17:00:36,441 INFO L409 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-01-24 17:00:36,442 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-01-24 17:00:36,442 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2018-01-24 17:00:36,442 INFO L87 Difference]: Start difference. First operand 180 states and 194 transitions. Second operand 9 states. [2018-01-24 17:00:36,848 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-24 17:00:36,849 INFO L93 Difference]: Finished difference Result 181 states and 194 transitions. [2018-01-24 17:00:36,849 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-01-24 17:00:36,849 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 19 [2018-01-24 17:00:36,849 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-24 17:00:36,851 INFO L225 Difference]: With dead ends: 181 [2018-01-24 17:00:36,851 INFO L226 Difference]: Without dead ends: 177 [2018-01-24 17:00:36,851 INFO L525 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=44, Invalid=88, Unknown=0, NotChecked=0, Total=132 [2018-01-24 17:00:36,851 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 177 states. [2018-01-24 17:00:36,862 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 177 to 177. [2018-01-24 17:00:36,862 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 177 states. [2018-01-24 17:00:36,864 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 177 states to 177 states and 189 transitions. [2018-01-24 17:00:36,865 INFO L78 Accepts]: Start accepts. Automaton has 177 states and 189 transitions. Word has length 19 [2018-01-24 17:00:36,865 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-24 17:00:36,865 INFO L432 AbstractCegarLoop]: Abstraction has 177 states and 189 transitions. [2018-01-24 17:00:36,865 INFO L433 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-01-24 17:00:36,865 INFO L276 IsEmpty]: Start isEmpty. Operand 177 states and 189 transitions. [2018-01-24 17:00:36,866 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2018-01-24 17:00:36,866 INFO L314 BasicCegarLoop]: Found error trace [2018-01-24 17:00:36,866 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 17:00:36,866 INFO L371 AbstractCegarLoop]: === Iteration 7 === [__list_addErr1RequiresViolation, __list_addErr3RequiresViolation, __list_addErr0RequiresViolation, __list_addErr2RequiresViolation, __list_addErr4RequiresViolation, __list_addErr7RequiresViolation, __list_addErr5RequiresViolation, __list_addErr6RequiresViolation, val_from_nodeErr0RequiresViolation, val_from_nodeErr1RequiresViolation, gl_sortErr2RequiresViolation, gl_sortErr0RequiresViolation, gl_sortErr1RequiresViolation, gl_sortErr3RequiresViolation, list_emptyErr0RequiresViolation, list_emptyErr1RequiresViolation, mainErr0EnsuresViolation, __list_delErr0RequiresViolation, __list_delErr2RequiresViolation, __list_delErr3RequiresViolation, __list_delErr1RequiresViolation, gl_destroyErr4RequiresViolation, gl_destroyErr2RequiresViolation, gl_destroyErr0RequiresViolation, gl_destroyErr1RequiresViolation, gl_destroyErr6RequiresViolation, gl_destroyErr7RequiresViolation, gl_destroyErr3RequiresViolation, gl_destroyErr5RequiresViolation, ULTIMATE.initErr3RequiresViolation, ULTIMATE.initErr1RequiresViolation, ULTIMATE.initErr2RequiresViolation, ULTIMATE.initErr0RequiresViolation, list_delErr2RequiresViolation, list_delErr4RequiresViolation, list_delErr3RequiresViolation, list_delErr1RequiresViolation, list_delErr7RequiresViolation, list_delErr5RequiresViolation, list_delErr0RequiresViolation, list_delErr6RequiresViolation, list_moveErr0RequiresViolation, list_moveErr3RequiresViolation, list_moveErr2RequiresViolation, list_moveErr1RequiresViolation, list_addErr1RequiresViolation, list_addErr0RequiresViolation, gl_insertErr0RequiresViolation, gl_insertErr1RequiresViolation, gl_seek_maxErr0RequiresViolation, gl_seek_maxErr2RequiresViolation, gl_seek_maxErr1RequiresViolation, gl_seek_maxErr5RequiresViolation, gl_seek_maxErr3RequiresViolation, gl_seek_maxErr4RequiresViolation]=== [2018-01-24 17:00:36,867 INFO L82 PathProgramCache]: Analyzing trace with hash -1956678693, now seen corresponding path program 1 times [2018-01-24 17:00:36,867 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-24 17:00:36,868 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 17:00:36,868 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-24 17:00:36,868 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 17:00:36,868 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-24 17:00:36,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-24 17:00:36,892 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-24 17:00:37,044 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 17:00:37,044 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-24 17:00:37,044 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2018-01-24 17:00:37,044 INFO L252 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-01-24 17:00:37,045 INFO L409 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-01-24 17:00:37,045 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-01-24 17:00:37,045 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2018-01-24 17:00:37,045 INFO L87 Difference]: Start difference. First operand 177 states and 189 transitions. Second operand 10 states. [2018-01-24 17:00:37,397 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-24 17:00:37,397 INFO L93 Difference]: Finished difference Result 204 states and 218 transitions. [2018-01-24 17:00:37,397 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2018-01-24 17:00:37,397 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 22 [2018-01-24 17:00:37,397 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-24 17:00:37,399 INFO L225 Difference]: With dead ends: 204 [2018-01-24 17:00:37,399 INFO L226 Difference]: Without dead ends: 203 [2018-01-24 17:00:37,399 INFO L525 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 2 SyntacticMatches, 4 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=60, Invalid=246, Unknown=0, NotChecked=0, Total=306 [2018-01-24 17:00:37,399 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 203 states. [2018-01-24 17:00:37,410 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 203 to 195. [2018-01-24 17:00:37,410 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 195 states. [2018-01-24 17:00:37,412 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 195 states to 195 states and 216 transitions. [2018-01-24 17:00:37,412 INFO L78 Accepts]: Start accepts. Automaton has 195 states and 216 transitions. Word has length 22 [2018-01-24 17:00:37,412 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-24 17:00:37,412 INFO L432 AbstractCegarLoop]: Abstraction has 195 states and 216 transitions. [2018-01-24 17:00:37,412 INFO L433 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-01-24 17:00:37,412 INFO L276 IsEmpty]: Start isEmpty. Operand 195 states and 216 transitions. [2018-01-24 17:00:37,413 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2018-01-24 17:00:37,413 INFO L314 BasicCegarLoop]: Found error trace [2018-01-24 17:00:37,413 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 17:00:37,413 INFO L371 AbstractCegarLoop]: === Iteration 8 === [__list_addErr1RequiresViolation, __list_addErr3RequiresViolation, __list_addErr0RequiresViolation, __list_addErr2RequiresViolation, __list_addErr4RequiresViolation, __list_addErr7RequiresViolation, __list_addErr5RequiresViolation, __list_addErr6RequiresViolation, val_from_nodeErr0RequiresViolation, val_from_nodeErr1RequiresViolation, gl_sortErr2RequiresViolation, gl_sortErr0RequiresViolation, gl_sortErr1RequiresViolation, gl_sortErr3RequiresViolation, list_emptyErr0RequiresViolation, list_emptyErr1RequiresViolation, mainErr0EnsuresViolation, __list_delErr0RequiresViolation, __list_delErr2RequiresViolation, __list_delErr3RequiresViolation, __list_delErr1RequiresViolation, gl_destroyErr4RequiresViolation, gl_destroyErr2RequiresViolation, gl_destroyErr0RequiresViolation, gl_destroyErr1RequiresViolation, gl_destroyErr6RequiresViolation, gl_destroyErr7RequiresViolation, gl_destroyErr3RequiresViolation, gl_destroyErr5RequiresViolation, ULTIMATE.initErr3RequiresViolation, ULTIMATE.initErr1RequiresViolation, ULTIMATE.initErr2RequiresViolation, ULTIMATE.initErr0RequiresViolation, list_delErr2RequiresViolation, list_delErr4RequiresViolation, list_delErr3RequiresViolation, list_delErr1RequiresViolation, list_delErr7RequiresViolation, list_delErr5RequiresViolation, list_delErr0RequiresViolation, list_delErr6RequiresViolation, list_moveErr0RequiresViolation, list_moveErr3RequiresViolation, list_moveErr2RequiresViolation, list_moveErr1RequiresViolation, list_addErr1RequiresViolation, list_addErr0RequiresViolation, gl_insertErr0RequiresViolation, gl_insertErr1RequiresViolation, gl_seek_maxErr0RequiresViolation, gl_seek_maxErr2RequiresViolation, gl_seek_maxErr1RequiresViolation, gl_seek_maxErr5RequiresViolation, gl_seek_maxErr3RequiresViolation, gl_seek_maxErr4RequiresViolation]=== [2018-01-24 17:00:37,413 INFO L82 PathProgramCache]: Analyzing trace with hash -1956678692, now seen corresponding path program 1 times [2018-01-24 17:00:37,413 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-24 17:00:37,414 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 17:00:37,414 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-24 17:00:37,414 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 17:00:37,414 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-24 17:00:37,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-24 17:00:37,433 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-24 17:00:37,652 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 17:00:37,653 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-24 17:00:37,653 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2018-01-24 17:00:37,653 INFO L252 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-01-24 17:00:37,653 INFO L409 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-01-24 17:00:37,653 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-01-24 17:00:37,653 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2018-01-24 17:00:37,654 INFO L87 Difference]: Start difference. First operand 195 states and 216 transitions. Second operand 11 states. [2018-01-24 17:00:38,668 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-24 17:00:38,669 INFO L93 Difference]: Finished difference Result 363 states and 387 transitions. [2018-01-24 17:00:38,669 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2018-01-24 17:00:38,669 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 22 [2018-01-24 17:00:38,669 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-24 17:00:38,672 INFO L225 Difference]: With dead ends: 363 [2018-01-24 17:00:38,672 INFO L226 Difference]: Without dead ends: 362 [2018-01-24 17:00:38,673 INFO L525 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 2 SyntacticMatches, 4 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=86, Invalid=334, Unknown=0, NotChecked=0, Total=420 [2018-01-24 17:00:38,674 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 362 states. [2018-01-24 17:00:38,697 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 362 to 290. [2018-01-24 17:00:38,698 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 290 states. [2018-01-24 17:00:38,700 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 290 states to 290 states and 356 transitions. [2018-01-24 17:00:38,700 INFO L78 Accepts]: Start accepts. Automaton has 290 states and 356 transitions. Word has length 22 [2018-01-24 17:00:38,701 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-24 17:00:38,701 INFO L432 AbstractCegarLoop]: Abstraction has 290 states and 356 transitions. [2018-01-24 17:00:38,701 INFO L433 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-01-24 17:00:38,701 INFO L276 IsEmpty]: Start isEmpty. Operand 290 states and 356 transitions. [2018-01-24 17:00:38,702 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2018-01-24 17:00:38,702 INFO L314 BasicCegarLoop]: Found error trace [2018-01-24 17:00:38,702 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 17:00:38,702 INFO L371 AbstractCegarLoop]: === Iteration 9 === [__list_addErr1RequiresViolation, __list_addErr3RequiresViolation, __list_addErr0RequiresViolation, __list_addErr2RequiresViolation, __list_addErr4RequiresViolation, __list_addErr7RequiresViolation, __list_addErr5RequiresViolation, __list_addErr6RequiresViolation, val_from_nodeErr0RequiresViolation, val_from_nodeErr1RequiresViolation, gl_sortErr2RequiresViolation, gl_sortErr0RequiresViolation, gl_sortErr1RequiresViolation, gl_sortErr3RequiresViolation, list_emptyErr0RequiresViolation, list_emptyErr1RequiresViolation, mainErr0EnsuresViolation, __list_delErr0RequiresViolation, __list_delErr2RequiresViolation, __list_delErr3RequiresViolation, __list_delErr1RequiresViolation, gl_destroyErr4RequiresViolation, gl_destroyErr2RequiresViolation, gl_destroyErr0RequiresViolation, gl_destroyErr1RequiresViolation, gl_destroyErr6RequiresViolation, gl_destroyErr7RequiresViolation, gl_destroyErr3RequiresViolation, gl_destroyErr5RequiresViolation, ULTIMATE.initErr3RequiresViolation, ULTIMATE.initErr1RequiresViolation, ULTIMATE.initErr2RequiresViolation, ULTIMATE.initErr0RequiresViolation, list_delErr2RequiresViolation, list_delErr4RequiresViolation, list_delErr3RequiresViolation, list_delErr1RequiresViolation, list_delErr7RequiresViolation, list_delErr5RequiresViolation, list_delErr0RequiresViolation, list_delErr6RequiresViolation, list_moveErr0RequiresViolation, list_moveErr3RequiresViolation, list_moveErr2RequiresViolation, list_moveErr1RequiresViolation, list_addErr1RequiresViolation, list_addErr0RequiresViolation, gl_insertErr0RequiresViolation, gl_insertErr1RequiresViolation, gl_seek_maxErr0RequiresViolation, gl_seek_maxErr2RequiresViolation, gl_seek_maxErr1RequiresViolation, gl_seek_maxErr5RequiresViolation, gl_seek_maxErr3RequiresViolation, gl_seek_maxErr4RequiresViolation]=== [2018-01-24 17:00:38,702 INFO L82 PathProgramCache]: Analyzing trace with hash -527497365, now seen corresponding path program 1 times [2018-01-24 17:00:38,702 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-24 17:00:38,703 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 17:00:38,704 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-24 17:00:38,704 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 17:00:38,704 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-24 17:00:38,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-24 17:00:38,718 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-24 17:00:38,807 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 17:00:38,807 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-24 17:00:38,807 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-01-24 17:00:38,807 INFO L252 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-01-24 17:00:38,808 INFO L409 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-01-24 17:00:38,808 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-01-24 17:00:38,808 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-01-24 17:00:38,809 INFO L87 Difference]: Start difference. First operand 290 states and 356 transitions. Second operand 7 states. [2018-01-24 17:00:39,168 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-24 17:00:39,169 INFO L93 Difference]: Finished difference Result 304 states and 370 transitions. [2018-01-24 17:00:39,170 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-01-24 17:00:39,170 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 23 [2018-01-24 17:00:39,171 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-24 17:00:39,173 INFO L225 Difference]: With dead ends: 304 [2018-01-24 17:00:39,173 INFO L226 Difference]: Without dead ends: 302 [2018-01-24 17:00:39,174 INFO L525 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2018-01-24 17:00:39,174 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 302 states. [2018-01-24 17:00:39,191 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 302 to 206. [2018-01-24 17:00:39,192 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 206 states. [2018-01-24 17:00:39,193 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 206 states to 206 states and 227 transitions. [2018-01-24 17:00:39,194 INFO L78 Accepts]: Start accepts. Automaton has 206 states and 227 transitions. Word has length 23 [2018-01-24 17:00:39,194 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-24 17:00:39,194 INFO L432 AbstractCegarLoop]: Abstraction has 206 states and 227 transitions. [2018-01-24 17:00:39,194 INFO L433 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-01-24 17:00:39,195 INFO L276 IsEmpty]: Start isEmpty. Operand 206 states and 227 transitions. [2018-01-24 17:00:39,195 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2018-01-24 17:00:39,195 INFO L314 BasicCegarLoop]: Found error trace [2018-01-24 17:00:39,195 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 17:00:39,195 INFO L371 AbstractCegarLoop]: === Iteration 10 === [__list_addErr1RequiresViolation, __list_addErr3RequiresViolation, __list_addErr0RequiresViolation, __list_addErr2RequiresViolation, __list_addErr4RequiresViolation, __list_addErr7RequiresViolation, __list_addErr5RequiresViolation, __list_addErr6RequiresViolation, val_from_nodeErr0RequiresViolation, val_from_nodeErr1RequiresViolation, gl_sortErr2RequiresViolation, gl_sortErr0RequiresViolation, gl_sortErr1RequiresViolation, gl_sortErr3RequiresViolation, list_emptyErr0RequiresViolation, list_emptyErr1RequiresViolation, mainErr0EnsuresViolation, __list_delErr0RequiresViolation, __list_delErr2RequiresViolation, __list_delErr3RequiresViolation, __list_delErr1RequiresViolation, gl_destroyErr4RequiresViolation, gl_destroyErr2RequiresViolation, gl_destroyErr0RequiresViolation, gl_destroyErr1RequiresViolation, gl_destroyErr6RequiresViolation, gl_destroyErr7RequiresViolation, gl_destroyErr3RequiresViolation, gl_destroyErr5RequiresViolation, ULTIMATE.initErr3RequiresViolation, ULTIMATE.initErr1RequiresViolation, ULTIMATE.initErr2RequiresViolation, ULTIMATE.initErr0RequiresViolation, list_delErr2RequiresViolation, list_delErr4RequiresViolation, list_delErr3RequiresViolation, list_delErr1RequiresViolation, list_delErr7RequiresViolation, list_delErr5RequiresViolation, list_delErr0RequiresViolation, list_delErr6RequiresViolation, list_moveErr0RequiresViolation, list_moveErr3RequiresViolation, list_moveErr2RequiresViolation, list_moveErr1RequiresViolation, list_addErr1RequiresViolation, list_addErr0RequiresViolation, gl_insertErr0RequiresViolation, gl_insertErr1RequiresViolation, gl_seek_maxErr0RequiresViolation, gl_seek_maxErr2RequiresViolation, gl_seek_maxErr1RequiresViolation, gl_seek_maxErr5RequiresViolation, gl_seek_maxErr3RequiresViolation, gl_seek_maxErr4RequiresViolation]=== [2018-01-24 17:00:39,196 INFO L82 PathProgramCache]: Analyzing trace with hash -527497364, now seen corresponding path program 1 times [2018-01-24 17:00:39,196 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-24 17:00:39,197 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 17:00:39,197 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-24 17:00:39,197 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 17:00:39,197 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-24 17:00:39,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-24 17:00:39,215 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-24 17:00:39,307 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 17:00:39,308 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-24 17:00:39,308 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-01-24 17:00:39,308 INFO L252 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-01-24 17:00:39,308 INFO L409 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-01-24 17:00:39,309 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-01-24 17:00:39,309 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2018-01-24 17:00:39,309 INFO L87 Difference]: Start difference. First operand 206 states and 227 transitions. Second operand 8 states. [2018-01-24 17:00:39,662 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-24 17:00:39,663 INFO L93 Difference]: Finished difference Result 212 states and 227 transitions. [2018-01-24 17:00:39,663 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-01-24 17:00:39,663 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 23 [2018-01-24 17:00:39,663 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-24 17:00:39,664 INFO L225 Difference]: With dead ends: 212 [2018-01-24 17:00:39,664 INFO L226 Difference]: Without dead ends: 210 [2018-01-24 17:00:39,665 INFO L525 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2018-01-24 17:00:39,665 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 210 states. [2018-01-24 17:00:39,677 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 210 to 206. [2018-01-24 17:00:39,677 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 206 states. [2018-01-24 17:00:39,679 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 206 states to 206 states and 223 transitions. [2018-01-24 17:00:39,679 INFO L78 Accepts]: Start accepts. Automaton has 206 states and 223 transitions. Word has length 23 [2018-01-24 17:00:39,680 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-24 17:00:39,680 INFO L432 AbstractCegarLoop]: Abstraction has 206 states and 223 transitions. [2018-01-24 17:00:39,680 INFO L433 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-01-24 17:00:39,680 INFO L276 IsEmpty]: Start isEmpty. Operand 206 states and 223 transitions. [2018-01-24 17:00:39,680 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2018-01-24 17:00:39,680 INFO L314 BasicCegarLoop]: Found error trace [2018-01-24 17:00:39,680 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 17:00:39,681 INFO L371 AbstractCegarLoop]: === Iteration 11 === [__list_addErr1RequiresViolation, __list_addErr3RequiresViolation, __list_addErr0RequiresViolation, __list_addErr2RequiresViolation, __list_addErr4RequiresViolation, __list_addErr7RequiresViolation, __list_addErr5RequiresViolation, __list_addErr6RequiresViolation, val_from_nodeErr0RequiresViolation, val_from_nodeErr1RequiresViolation, gl_sortErr2RequiresViolation, gl_sortErr0RequiresViolation, gl_sortErr1RequiresViolation, gl_sortErr3RequiresViolation, list_emptyErr0RequiresViolation, list_emptyErr1RequiresViolation, mainErr0EnsuresViolation, __list_delErr0RequiresViolation, __list_delErr2RequiresViolation, __list_delErr3RequiresViolation, __list_delErr1RequiresViolation, gl_destroyErr4RequiresViolation, gl_destroyErr2RequiresViolation, gl_destroyErr0RequiresViolation, gl_destroyErr1RequiresViolation, gl_destroyErr6RequiresViolation, gl_destroyErr7RequiresViolation, gl_destroyErr3RequiresViolation, gl_destroyErr5RequiresViolation, ULTIMATE.initErr3RequiresViolation, ULTIMATE.initErr1RequiresViolation, ULTIMATE.initErr2RequiresViolation, ULTIMATE.initErr0RequiresViolation, list_delErr2RequiresViolation, list_delErr4RequiresViolation, list_delErr3RequiresViolation, list_delErr1RequiresViolation, list_delErr7RequiresViolation, list_delErr5RequiresViolation, list_delErr0RequiresViolation, list_delErr6RequiresViolation, list_moveErr0RequiresViolation, list_moveErr3RequiresViolation, list_moveErr2RequiresViolation, list_moveErr1RequiresViolation, list_addErr1RequiresViolation, list_addErr0RequiresViolation, gl_insertErr0RequiresViolation, gl_insertErr1RequiresViolation, gl_seek_maxErr0RequiresViolation, gl_seek_maxErr2RequiresViolation, gl_seek_maxErr1RequiresViolation, gl_seek_maxErr5RequiresViolation, gl_seek_maxErr3RequiresViolation, gl_seek_maxErr4RequiresViolation]=== [2018-01-24 17:00:39,681 INFO L82 PathProgramCache]: Analyzing trace with hash -118827570, now seen corresponding path program 1 times [2018-01-24 17:00:39,681 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-24 17:00:39,681 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 17:00:39,682 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-24 17:00:39,682 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 17:00:39,682 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-24 17:00:39,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-24 17:00:39,694 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-24 17:00:39,740 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 17:00:39,741 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-24 17:00:39,741 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-01-24 17:00:39,741 INFO L252 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-01-24 17:00:39,741 INFO L409 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-01-24 17:00:39,741 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-01-24 17:00:39,741 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-01-24 17:00:39,741 INFO L87 Difference]: Start difference. First operand 206 states and 223 transitions. Second operand 5 states. [2018-01-24 17:00:39,887 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-24 17:00:39,888 INFO L93 Difference]: Finished difference Result 206 states and 223 transitions. [2018-01-24 17:00:39,888 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-01-24 17:00:39,888 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 25 [2018-01-24 17:00:39,888 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-24 17:00:39,890 INFO L225 Difference]: With dead ends: 206 [2018-01-24 17:00:39,890 INFO L226 Difference]: Without dead ends: 205 [2018-01-24 17:00:39,890 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 17:00:39,891 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 205 states. [2018-01-24 17:00:39,901 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 205 to 205. [2018-01-24 17:00:39,901 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 205 states. [2018-01-24 17:00:39,902 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 205 states to 205 states and 220 transitions. [2018-01-24 17:00:39,902 INFO L78 Accepts]: Start accepts. Automaton has 205 states and 220 transitions. Word has length 25 [2018-01-24 17:00:39,902 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-24 17:00:39,903 INFO L432 AbstractCegarLoop]: Abstraction has 205 states and 220 transitions. [2018-01-24 17:00:39,903 INFO L433 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-01-24 17:00:39,903 INFO L276 IsEmpty]: Start isEmpty. Operand 205 states and 220 transitions. [2018-01-24 17:00:39,903 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2018-01-24 17:00:39,903 INFO L314 BasicCegarLoop]: Found error trace [2018-01-24 17:00:39,903 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 17:00:39,904 INFO L371 AbstractCegarLoop]: === Iteration 12 === [__list_addErr1RequiresViolation, __list_addErr3RequiresViolation, __list_addErr0RequiresViolation, __list_addErr2RequiresViolation, __list_addErr4RequiresViolation, __list_addErr7RequiresViolation, __list_addErr5RequiresViolation, __list_addErr6RequiresViolation, val_from_nodeErr0RequiresViolation, val_from_nodeErr1RequiresViolation, gl_sortErr2RequiresViolation, gl_sortErr0RequiresViolation, gl_sortErr1RequiresViolation, gl_sortErr3RequiresViolation, list_emptyErr0RequiresViolation, list_emptyErr1RequiresViolation, mainErr0EnsuresViolation, __list_delErr0RequiresViolation, __list_delErr2RequiresViolation, __list_delErr3RequiresViolation, __list_delErr1RequiresViolation, gl_destroyErr4RequiresViolation, gl_destroyErr2RequiresViolation, gl_destroyErr0RequiresViolation, gl_destroyErr1RequiresViolation, gl_destroyErr6RequiresViolation, gl_destroyErr7RequiresViolation, gl_destroyErr3RequiresViolation, gl_destroyErr5RequiresViolation, ULTIMATE.initErr3RequiresViolation, ULTIMATE.initErr1RequiresViolation, ULTIMATE.initErr2RequiresViolation, ULTIMATE.initErr0RequiresViolation, list_delErr2RequiresViolation, list_delErr4RequiresViolation, list_delErr3RequiresViolation, list_delErr1RequiresViolation, list_delErr7RequiresViolation, list_delErr5RequiresViolation, list_delErr0RequiresViolation, list_delErr6RequiresViolation, list_moveErr0RequiresViolation, list_moveErr3RequiresViolation, list_moveErr2RequiresViolation, list_moveErr1RequiresViolation, list_addErr1RequiresViolation, list_addErr0RequiresViolation, gl_insertErr0RequiresViolation, gl_insertErr1RequiresViolation, gl_seek_maxErr0RequiresViolation, gl_seek_maxErr2RequiresViolation, gl_seek_maxErr1RequiresViolation, gl_seek_maxErr5RequiresViolation, gl_seek_maxErr3RequiresViolation, gl_seek_maxErr4RequiresViolation]=== [2018-01-24 17:00:39,904 INFO L82 PathProgramCache]: Analyzing trace with hash -118827569, now seen corresponding path program 1 times [2018-01-24 17:00:39,904 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-24 17:00:39,904 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 17:00:39,905 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-24 17:00:39,905 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 17:00:39,905 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-24 17:00:39,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-24 17:00:39,917 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-24 17:00:40,172 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 17:00:40,173 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-24 17:00:40,173 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-01-24 17:00:40,173 INFO L252 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-01-24 17:00:40,173 INFO L409 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-01-24 17:00:40,173 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-01-24 17:00:40,173 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2018-01-24 17:00:40,174 INFO L87 Difference]: Start difference. First operand 205 states and 220 transitions. Second operand 8 states. [2018-01-24 17:00:40,418 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-24 17:00:40,418 INFO L93 Difference]: Finished difference Result 208 states and 220 transitions. [2018-01-24 17:00:40,418 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-01-24 17:00:40,418 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 25 [2018-01-24 17:00:40,419 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-24 17:00:40,420 INFO L225 Difference]: With dead ends: 208 [2018-01-24 17:00:40,420 INFO L226 Difference]: Without dead ends: 207 [2018-01-24 17:00:40,421 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 17:00:40,421 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 207 states. [2018-01-24 17:00:40,436 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 207 to 205. [2018-01-24 17:00:40,437 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 205 states. [2018-01-24 17:00:40,438 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 205 states to 205 states and 218 transitions. [2018-01-24 17:00:40,438 INFO L78 Accepts]: Start accepts. Automaton has 205 states and 218 transitions. Word has length 25 [2018-01-24 17:00:40,439 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-24 17:00:40,439 INFO L432 AbstractCegarLoop]: Abstraction has 205 states and 218 transitions. [2018-01-24 17:00:40,439 INFO L433 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-01-24 17:00:40,439 INFO L276 IsEmpty]: Start isEmpty. Operand 205 states and 218 transitions. [2018-01-24 17:00:40,440 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2018-01-24 17:00:40,440 INFO L314 BasicCegarLoop]: Found error trace [2018-01-24 17:00:40,440 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 17:00:40,440 INFO L371 AbstractCegarLoop]: === Iteration 13 === [__list_addErr1RequiresViolation, __list_addErr3RequiresViolation, __list_addErr0RequiresViolation, __list_addErr2RequiresViolation, __list_addErr4RequiresViolation, __list_addErr7RequiresViolation, __list_addErr5RequiresViolation, __list_addErr6RequiresViolation, val_from_nodeErr0RequiresViolation, val_from_nodeErr1RequiresViolation, gl_sortErr2RequiresViolation, gl_sortErr0RequiresViolation, gl_sortErr1RequiresViolation, gl_sortErr3RequiresViolation, list_emptyErr0RequiresViolation, list_emptyErr1RequiresViolation, mainErr0EnsuresViolation, __list_delErr0RequiresViolation, __list_delErr2RequiresViolation, __list_delErr3RequiresViolation, __list_delErr1RequiresViolation, gl_destroyErr4RequiresViolation, gl_destroyErr2RequiresViolation, gl_destroyErr0RequiresViolation, gl_destroyErr1RequiresViolation, gl_destroyErr6RequiresViolation, gl_destroyErr7RequiresViolation, gl_destroyErr3RequiresViolation, gl_destroyErr5RequiresViolation, ULTIMATE.initErr3RequiresViolation, ULTIMATE.initErr1RequiresViolation, ULTIMATE.initErr2RequiresViolation, ULTIMATE.initErr0RequiresViolation, list_delErr2RequiresViolation, list_delErr4RequiresViolation, list_delErr3RequiresViolation, list_delErr1RequiresViolation, list_delErr7RequiresViolation, list_delErr5RequiresViolation, list_delErr0RequiresViolation, list_delErr6RequiresViolation, list_moveErr0RequiresViolation, list_moveErr3RequiresViolation, list_moveErr2RequiresViolation, list_moveErr1RequiresViolation, list_addErr1RequiresViolation, list_addErr0RequiresViolation, gl_insertErr0RequiresViolation, gl_insertErr1RequiresViolation, gl_seek_maxErr0RequiresViolation, gl_seek_maxErr2RequiresViolation, gl_seek_maxErr1RequiresViolation, gl_seek_maxErr5RequiresViolation, gl_seek_maxErr3RequiresViolation, gl_seek_maxErr4RequiresViolation]=== [2018-01-24 17:00:40,441 INFO L82 PathProgramCache]: Analyzing trace with hash 1902858492, now seen corresponding path program 1 times [2018-01-24 17:00:40,441 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-24 17:00:40,441 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 17:00:40,442 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-24 17:00:40,442 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 17:00:40,442 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-24 17:00:40,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-24 17:00:40,459 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-24 17:00:40,527 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 17:00:40,527 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-24 17:00:40,527 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2018-01-24 17:00:40,527 INFO L252 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-01-24 17:00:40,528 INFO L409 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-01-24 17:00:40,528 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-01-24 17:00:40,528 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2018-01-24 17:00:40,528 INFO L87 Difference]: Start difference. First operand 205 states and 218 transitions. Second operand 9 states. [2018-01-24 17:00:41,027 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-24 17:00:41,027 INFO L93 Difference]: Finished difference Result 205 states and 218 transitions. [2018-01-24 17:00:41,028 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-01-24 17:00:41,028 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 41 [2018-01-24 17:00:41,028 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-24 17:00:41,029 INFO L225 Difference]: With dead ends: 205 [2018-01-24 17:00:41,029 INFO L226 Difference]: Without dead ends: 204 [2018-01-24 17:00:41,030 INFO L525 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=50, Invalid=190, Unknown=0, NotChecked=0, Total=240 [2018-01-24 17:00:41,030 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 204 states. [2018-01-24 17:00:41,042 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 204 to 204. [2018-01-24 17:00:41,042 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 204 states. [2018-01-24 17:00:41,043 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 204 states to 204 states and 217 transitions. [2018-01-24 17:00:41,043 INFO L78 Accepts]: Start accepts. Automaton has 204 states and 217 transitions. Word has length 41 [2018-01-24 17:00:41,043 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-24 17:00:41,043 INFO L432 AbstractCegarLoop]: Abstraction has 204 states and 217 transitions. [2018-01-24 17:00:41,043 INFO L433 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-01-24 17:00:41,044 INFO L276 IsEmpty]: Start isEmpty. Operand 204 states and 217 transitions. [2018-01-24 17:00:41,044 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2018-01-24 17:00:41,044 INFO L314 BasicCegarLoop]: Found error trace [2018-01-24 17:00:41,045 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 17:00:41,045 INFO L371 AbstractCegarLoop]: === Iteration 14 === [__list_addErr1RequiresViolation, __list_addErr3RequiresViolation, __list_addErr0RequiresViolation, __list_addErr2RequiresViolation, __list_addErr4RequiresViolation, __list_addErr7RequiresViolation, __list_addErr5RequiresViolation, __list_addErr6RequiresViolation, val_from_nodeErr0RequiresViolation, val_from_nodeErr1RequiresViolation, gl_sortErr2RequiresViolation, gl_sortErr0RequiresViolation, gl_sortErr1RequiresViolation, gl_sortErr3RequiresViolation, list_emptyErr0RequiresViolation, list_emptyErr1RequiresViolation, mainErr0EnsuresViolation, __list_delErr0RequiresViolation, __list_delErr2RequiresViolation, __list_delErr3RequiresViolation, __list_delErr1RequiresViolation, gl_destroyErr4RequiresViolation, gl_destroyErr2RequiresViolation, gl_destroyErr0RequiresViolation, gl_destroyErr1RequiresViolation, gl_destroyErr6RequiresViolation, gl_destroyErr7RequiresViolation, gl_destroyErr3RequiresViolation, gl_destroyErr5RequiresViolation, ULTIMATE.initErr3RequiresViolation, ULTIMATE.initErr1RequiresViolation, ULTIMATE.initErr2RequiresViolation, ULTIMATE.initErr0RequiresViolation, list_delErr2RequiresViolation, list_delErr4RequiresViolation, list_delErr3RequiresViolation, list_delErr1RequiresViolation, list_delErr7RequiresViolation, list_delErr5RequiresViolation, list_delErr0RequiresViolation, list_delErr6RequiresViolation, list_moveErr0RequiresViolation, list_moveErr3RequiresViolation, list_moveErr2RequiresViolation, list_moveErr1RequiresViolation, list_addErr1RequiresViolation, list_addErr0RequiresViolation, gl_insertErr0RequiresViolation, gl_insertErr1RequiresViolation, gl_seek_maxErr0RequiresViolation, gl_seek_maxErr2RequiresViolation, gl_seek_maxErr1RequiresViolation, gl_seek_maxErr5RequiresViolation, gl_seek_maxErr3RequiresViolation, gl_seek_maxErr4RequiresViolation]=== [2018-01-24 17:00:41,045 INFO L82 PathProgramCache]: Analyzing trace with hash 1902858493, now seen corresponding path program 1 times [2018-01-24 17:00:41,045 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-24 17:00:41,046 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 17:00:41,046 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-24 17:00:41,046 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 17:00:41,046 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-24 17:00:41,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-24 17:00:41,058 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-24 17:00:41,179 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 17:00:41,179 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-24 17:00:41,179 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2018-01-24 17:00:41,179 INFO L252 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-01-24 17:00:41,180 INFO L409 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-01-24 17:00:41,180 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-01-24 17:00:41,180 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2018-01-24 17:00:41,180 INFO L87 Difference]: Start difference. First operand 204 states and 217 transitions. Second operand 11 states. [2018-01-24 17:00:41,852 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-24 17:00:41,852 INFO L93 Difference]: Finished difference Result 204 states and 217 transitions. [2018-01-24 17:00:41,853 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-01-24 17:00:41,853 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 41 [2018-01-24 17:00:41,853 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-24 17:00:41,854 INFO L225 Difference]: With dead ends: 204 [2018-01-24 17:00:41,854 INFO L226 Difference]: Without dead ends: 203 [2018-01-24 17:00:41,854 INFO L525 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=70, Invalid=236, Unknown=0, NotChecked=0, Total=306 [2018-01-24 17:00:41,855 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 203 states. [2018-01-24 17:00:41,865 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 203 to 203. [2018-01-24 17:00:41,865 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 203 states. [2018-01-24 17:00:41,866 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 203 states to 203 states and 216 transitions. [2018-01-24 17:00:41,866 INFO L78 Accepts]: Start accepts. Automaton has 203 states and 216 transitions. Word has length 41 [2018-01-24 17:00:41,866 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-24 17:00:41,867 INFO L432 AbstractCegarLoop]: Abstraction has 203 states and 216 transitions. [2018-01-24 17:00:41,867 INFO L433 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-01-24 17:00:41,867 INFO L276 IsEmpty]: Start isEmpty. Operand 203 states and 216 transitions. [2018-01-24 17:00:41,868 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2018-01-24 17:00:41,868 INFO L314 BasicCegarLoop]: Found error trace [2018-01-24 17:00:41,868 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 17:00:41,868 INFO L371 AbstractCegarLoop]: === Iteration 15 === [__list_addErr1RequiresViolation, __list_addErr3RequiresViolation, __list_addErr0RequiresViolation, __list_addErr2RequiresViolation, __list_addErr4RequiresViolation, __list_addErr7RequiresViolation, __list_addErr5RequiresViolation, __list_addErr6RequiresViolation, val_from_nodeErr0RequiresViolation, val_from_nodeErr1RequiresViolation, gl_sortErr2RequiresViolation, gl_sortErr0RequiresViolation, gl_sortErr1RequiresViolation, gl_sortErr3RequiresViolation, list_emptyErr0RequiresViolation, list_emptyErr1RequiresViolation, mainErr0EnsuresViolation, __list_delErr0RequiresViolation, __list_delErr2RequiresViolation, __list_delErr3RequiresViolation, __list_delErr1RequiresViolation, gl_destroyErr4RequiresViolation, gl_destroyErr2RequiresViolation, gl_destroyErr0RequiresViolation, gl_destroyErr1RequiresViolation, gl_destroyErr6RequiresViolation, gl_destroyErr7RequiresViolation, gl_destroyErr3RequiresViolation, gl_destroyErr5RequiresViolation, ULTIMATE.initErr3RequiresViolation, ULTIMATE.initErr1RequiresViolation, ULTIMATE.initErr2RequiresViolation, ULTIMATE.initErr0RequiresViolation, list_delErr2RequiresViolation, list_delErr4RequiresViolation, list_delErr3RequiresViolation, list_delErr1RequiresViolation, list_delErr7RequiresViolation, list_delErr5RequiresViolation, list_delErr0RequiresViolation, list_delErr6RequiresViolation, list_moveErr0RequiresViolation, list_moveErr3RequiresViolation, list_moveErr2RequiresViolation, list_moveErr1RequiresViolation, list_addErr1RequiresViolation, list_addErr0RequiresViolation, gl_insertErr0RequiresViolation, gl_insertErr1RequiresViolation, gl_seek_maxErr0RequiresViolation, gl_seek_maxErr2RequiresViolation, gl_seek_maxErr1RequiresViolation, gl_seek_maxErr5RequiresViolation, gl_seek_maxErr3RequiresViolation, gl_seek_maxErr4RequiresViolation]=== [2018-01-24 17:00:41,868 INFO L82 PathProgramCache]: Analyzing trace with hash 873260496, now seen corresponding path program 1 times [2018-01-24 17:00:41,868 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-24 17:00:41,869 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 17:00:41,869 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-24 17:00:41,870 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 17:00:41,870 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-24 17:00:41,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-24 17:00:41,896 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-24 17:00:42,747 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 9 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-24 17:00:42,748 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-01-24 17:00:42,748 INFO L187 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-01-24 17:00:42,749 INFO L199 CegarAbsIntRunner]: Running AI on error trace of length 49 with the following transitions: [2018-01-24 17:00:42,751 INFO L201 CegarAbsIntRunner]: [0], [1], [2], [4], [7], [10], [13], [104], [106], [108], [113], [147], [148], [149], [152], [155], [156], [157], [161], [162], [166], [167], [168], [173], [175], [179], [222], [244], [245], [246], [247], [248], [249], [250], [252], [253] [2018-01-24 17:00:42,816 INFO L147 AbstractInterpreter]: Using domain VPDomain [2018-01-24 17:00:42,816 INFO L101 FixpointEngine]: Starting fixpoint engine with domain VPDomain (maxUnwinding=3, maxParallelStates=2) [2018-01-24 17:00:43,282 INFO L259 AbstractInterpreter]: Some error location(s) were reachable [2018-01-24 17:00:43,283 INFO L268 AbstractInterpreter]: Visited 36 different actions 60 times. Merged at 2 different actions 2 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 30 variables. [2018-01-24 17:00:43,305 INFO L434 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-01-24 17:00:43,305 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-01-24 17:00:43,305 INFO L187 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG 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 17:00:43,311 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-24 17:00:43,312 INFO L280 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-01-24 17:00:43,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-24 17:00:43,377 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-01-24 17:00:43,653 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 17:00:43,657 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 17:00:43,657 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-01-24 17:00:43,661 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-01-24 17:00:43,667 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 17:00:43,667 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:20, output treesize:16 [2018-01-24 17:00:43,786 INFO L700 Elim1Store]: detected not equals via solver [2018-01-24 17:00:43,787 INFO L700 Elim1Store]: detected not equals via solver [2018-01-24 17:00:43,788 INFO L700 Elim1Store]: detected not equals via solver [2018-01-24 17:00:43,790 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 17:00:43,791 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-01-24 17:00:43,803 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-01-24 17:00:43,803 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:29, output treesize:35 [2018-01-24 17:00:43,898 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 17:00:43,901 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 17:00:43,914 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-01-24 17:00:43,938 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-01-24 17:00:43,949 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 17:00:43,949 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:50, output treesize:35 [2018-01-24 17:00:44,066 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 17:00:44,069 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 17:00:44,069 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-01-24 17:00:44,072 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-01-24 17:00:44,078 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 17:00:44,079 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:39, output treesize:24 [2018-01-24 17:00:44,184 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 17:00:44,184 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-01-24 17:00:44,250 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-01-24 17:00:44,261 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-01-24 17:00:44,265 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2018-01-24 17:00:44,265 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:32, output treesize:24 [2018-01-24 17:00:44,480 INFO L267 ElimStorePlain]: Start of recursive call 1: End of recursive call: and 1 xjuncts. [2018-01-24 17:00:44,480 INFO L202 ElimStorePlain]: Needed 1 recursive calls to eliminate 7 variables, input treesize:55, output treesize:1 [2018-01-24 17:00:44,557 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 2 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 30 [2018-01-24 17:00:44,570 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 9 treesize of output 8 [2018-01-24 17:00:44,570 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-01-24 17:00:44,578 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 21 treesize of output 17 [2018-01-24 17:00:44,579 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 17 treesize of output 8 [2018-01-24 17:00:44,579 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-01-24 17:00:44,580 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-01-24 17:00:44,582 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-01-24 17:00:44,586 INFO L267 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2018-01-24 17:00:44,586 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 5 variables, input treesize:49, output treesize:21 [2018-01-24 17:00:44,740 WARN L130 XnfTransformerHelper]: expecting exponential blowup for input size 9 [2018-01-24 17:00:44,799 WARN L130 XnfTransformerHelper]: expecting exponential blowup for input size 9 [2018-01-24 17:00:44,882 WARN L130 XnfTransformerHelper]: expecting exponential blowup for input size 9 [2018-01-24 17:00:44,889 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 2 new quantified variables, introduced 0 case distinctions, treesize of input 53 treesize of output 46 [2018-01-24 17:00:44,890 FATAL L292 ToolchainWalker]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.UnsupportedOperationException: alternation not yet supported at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.ElimStorePlain.applyNonSddEliminations(ElimStorePlain.java:347) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.ElimStorePlain.doElimOneRec(ElimStorePlain.java:223) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.ElimStorePlain.doElimAllRec(ElimStorePlain.java:247) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.ElimStorePlain.elimAllRec(ElimStorePlain.java:199) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.PartialQuantifierElimination.elim(PartialQuantifierElimination.java:270) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.PartialQuantifierElimination.tryToEliminate(PartialQuantifierElimination.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.predicates.IterativePredicateTransformer$QuantifierEliminationPostprocessor.postprocess(IterativePredicateTransformer.java:243) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.predicates.IterativePredicateTransformer.applyPostprocessors(IterativePredicateTransformer.java:445) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.predicates.IterativePredicateTransformer.computeBackwardSequence(IterativePredicateTransformer.java:386) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.predicates.IterativePredicateTransformer.computeWeakestPreconditionSequence(IterativePredicateTransformer.java:292) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.TraceCheckSpWp.computeInterpolantsUsingUnsatCore(TraceCheckSpWp.java:328) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.TraceCheckSpWp.computeInterpolants(TraceCheckSpWp.java:173) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.TraceCheckSpWp.(TraceCheckSpWp.java:160) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceCheckConstructor.constructForwardBackward(TraceCheckConstructor.java:237) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceCheckConstructor.get(TraceCheckConstructor.java:185) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.BaseTaipanRefinementStrategy.getTraceCheck(BaseTaipanRefinementStrategy.java:213) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.BaseRefinementStrategy.checkFeasibility(BaseRefinementStrategy.java:231) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.BaseRefinementStrategy.executeStrategy(BaseRefinementStrategy.java:205) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:68) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:368) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:381) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:316) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.iterate(TraceAbstractionStarter.java:294) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:149) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:113) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:117) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:324) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.runToolchainDefault(DefaultToolchainJob.java:221) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.BasicToolchainJob.run(BasicToolchainJob.java:134) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) [2018-01-24 17:00:44,894 INFO L168 Benchmark]: Toolchain (without parser) took 11582.47 ms. Allocated memory was 302.0 MB in the beginning and 573.6 MB in the end (delta: 271.6 MB). Free memory was 260.9 MB in the beginning and 362.5 MB in the end (delta: -101.6 MB). Peak memory consumption was 170.0 MB. Max. memory is 5.3 GB. [2018-01-24 17:00:44,894 INFO L168 Benchmark]: CDTParser took 0.19 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 17:00:44,894 INFO L168 Benchmark]: CACSL2BoogieTranslator took 243.91 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 17:00:44,895 INFO L168 Benchmark]: Boogie Preprocessor took 41.14 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 17:00:44,895 INFO L168 Benchmark]: RCFGBuilder took 623.35 ms. Allocated memory is still 302.0 MB. Free memory was 246.9 MB in the beginning and 204.0 MB in the end (delta: 42.9 MB). Peak memory consumption was 42.9 MB. Max. memory is 5.3 GB. [2018-01-24 17:00:44,895 INFO L168 Benchmark]: TraceAbstraction took 10664.48 ms. Allocated memory was 302.0 MB in the beginning and 573.6 MB in the end (delta: 271.6 MB). Free memory was 204.0 MB in the beginning and 362.5 MB in the end (delta: -158.5 MB). Peak memory consumption was 113.1 MB. Max. memory is 5.3 GB. [2018-01-24 17:00:44,897 INFO L344 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 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 243.91 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 41.14 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 623.35 ms. Allocated memory is still 302.0 MB. Free memory was 246.9 MB in the beginning and 204.0 MB in the end (delta: 42.9 MB). Peak memory consumption was 42.9 MB. Max. memory is 5.3 GB. * TraceAbstraction took 10664.48 ms. Allocated memory was 302.0 MB in the beginning and 573.6 MB in the end (delta: 271.6 MB). Free memory was 204.0 MB in the beginning and 362.5 MB in the end (delta: -158.5 MB). Peak memory consumption was 113.1 MB. Max. memory is 5.3 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2: - StatisticsResult: ArrayEqualityDomainStatistics #Locations : 35 LocStat_MAX_WEQGRAPH_SIZE : 0 LocStat_MAX_SIZEOF_WEQEDGELABEL : 0 LocStat_NO_SUPPORTING_EQUALITIES : 442 LocStat_NO_SUPPORTING_DISEQUALITIES : 139 LocStat_NO_DISJUNCTIONS : -70 LocStat_MAX_NO_DISJUNCTIONS : -1 #Transitions : 48 TransStat_MAX_WEQGRAPH_SIZE : 0 TransStat_MAX_SIZEOF_WEQEDGELABEL : 0 TransStat_NO_SUPPORTING_EQUALITIES : 118 TransStat_NO_SUPPORTING_DISEQUALITIES : 12 TransStat_NO_DISJUNCTIONS : 49 TransStat_MAX_NO_DISJUNCTIONS : 2 - StatisticsResult: EqConstraintFactoryStatistics CONJOIN_DISJUNCTIVE(MILLISECONDS) : 0.948275 RENAME_VARIABLES(MILLISECONDS) : 0.011917 UNFREEZE(MILLISECONDS) : 0.000000 CONJOIN(MILLISECONDS) : 0.475587 PROJECTAWAY(MILLISECONDS) : 1.756591 ADD_WEAK_EQUALITY(MILLISECONDS) : 0.001140 DISJOIN(MILLISECONDS) : 0.619142 RENAME_VARIABLES_DISJUNCTIVE(MILLISECONDS) : 0.029900 ADD_EQUALITY(MILLISECONDS) : 0.034017 DISJOIN_DISJUNCTIVE(MILLISECONDS) : 0.000000 ADD_DISEQUALITY(MILLISECONDS) : 0.019632 #CONJOIN_DISJUNCTIVE : 104 #RENAME_VARIABLES : 208 #UNFREEZE : 0 #CONJOIN : 280 #PROJECTAWAY : 169 #ADD_WEAK_EQUALITY : 47 #DISJOIN : 30 #RENAME_VARIABLES_DISJUNCTIVE : 205 #ADD_EQUALITY : 147 #DISJOIN_DISJUNCTIVE : 0 #ADD_DISEQUALITY : 6 * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: UnsupportedOperationException: alternation not yet supported de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: UnsupportedOperationException: alternation not yet supported: de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.ElimStorePlain.applyNonSddEliminations(ElimStorePlain.java:347) RESULT: Ultimate could not prove your program: Toolchain returned no result. Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/test-0134_true-valid-memsafety.i_svcomp-DerefFreeMemtrack-32bit-Automizer_Taipan+AI_EQ_imprecise.epf_AutomizerC.xml/Csv-Benchmark-0-2018-01-24_17-00-44-905.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/test-0134_true-valid-memsafety.i_svcomp-DerefFreeMemtrack-32bit-Automizer_Taipan+AI_EQ_imprecise.epf_AutomizerC.xml/Csv-VPDomainBenchmark-0-2018-01-24_17-00-44-905.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/test-0134_true-valid-memsafety.i_svcomp-DerefFreeMemtrack-32bit-Automizer_Taipan+AI_EQ_imprecise.epf_AutomizerC.xml/Csv-BenchmarkWithCounters-0-2018-01-24_17-00-44-905.csv Received shutdown request...