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/cade18-smtinterpol/svcomp-DerefFreeMemtrack-32bit-Automizer_SmtInterpol_NoArray.epf -i ../../../trunk/examples/svcomp/memsafety/test-0137_false-valid-deref.i -------------------------------------------------------------------------------- This is Ultimate 0.1.23-ccafca9-m [2018-02-04 04:07:17,055 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-02-04 04:07:17,057 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-02-04 04:07:17,068 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-02-04 04:07:17,068 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-02-04 04:07:17,069 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-02-04 04:07:17,069 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-02-04 04:07:17,071 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-02-04 04:07:17,072 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-02-04 04:07:17,073 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-02-04 04:07:17,073 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-02-04 04:07:17,074 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-02-04 04:07:17,074 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-02-04 04:07:17,075 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-02-04 04:07:17,076 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-02-04 04:07:17,078 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-02-04 04:07:17,080 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-02-04 04:07:17,081 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-02-04 04:07:17,082 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-02-04 04:07:17,083 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-02-04 04:07:17,085 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-02-04 04:07:17,085 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-02-04 04:07:17,086 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-02-04 04:07:17,087 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-02-04 04:07:17,088 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-02-04 04:07:17,089 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-02-04 04:07:17,090 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-02-04 04:07:17,091 INFO L177 SettingsManager]: PEA to Boogie provides no preferences, ignoring... [2018-02-04 04:07:17,091 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-02-04 04:07:17,091 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-02-04 04:07:17,092 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-02-04 04:07:17,092 INFO L98 SettingsManager]: Beginning loading settings from /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/cade18-smtinterpol/svcomp-DerefFreeMemtrack-32bit-Automizer_SmtInterpol_NoArray.epf [2018-02-04 04:07:17,102 INFO L110 SettingsManager]: Loading preferences was successful [2018-02-04 04:07:17,103 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-02-04 04:07:17,104 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-02-04 04:07:17,104 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-02-04 04:07:17,104 INFO L133 SettingsManager]: * Use SBE=true [2018-02-04 04:07:17,104 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-02-04 04:07:17,105 INFO L133 SettingsManager]: * sizeof long=4 [2018-02-04 04:07:17,105 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-02-04 04:07:17,105 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-02-04 04:07:17,105 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-02-04 04:07:17,105 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-02-04 04:07:17,105 INFO L133 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2018-02-04 04:07:17,105 INFO L133 SettingsManager]: * Bitprecise bitfields=true [2018-02-04 04:07:17,106 INFO L133 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2018-02-04 04:07:17,106 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-02-04 04:07:17,106 INFO L133 SettingsManager]: * sizeof long double=12 [2018-02-04 04:07:17,106 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-02-04 04:07:17,106 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-02-04 04:07:17,106 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-02-04 04:07:17,107 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-02-04 04:07:17,107 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-02-04 04:07:17,107 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-02-04 04:07:17,107 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-02-04 04:07:17,107 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-02-04 04:07:17,107 INFO L133 SettingsManager]: * Trace refinement strategy=SMTINTERPOL [2018-02-04 04:07:17,140 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-02-04 04:07:17,153 INFO L266 ainManager$Toolchain]: [Toolchain 1]: Parser(s) successfully initialized [2018-02-04 04:07:17,159 INFO L222 ainManager$Toolchain]: [Toolchain 1]: Toolchain data selected. [2018-02-04 04:07:17,161 INFO L271 PluginConnector]: Initializing CDTParser... [2018-02-04 04:07:17,161 INFO L276 PluginConnector]: CDTParser initialized [2018-02-04 04:07:17,162 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/memsafety/test-0137_false-valid-deref.i [2018-02-04 04:07:17,316 INFO L304 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-02-04 04:07:17,318 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-02-04 04:07:17,318 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-02-04 04:07:17,318 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-02-04 04:07:17,324 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-02-04 04:07:17,325 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.02 04:07:17" (1/1) ... [2018-02-04 04:07:17,328 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@87928be and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 04:07:17, skipping insertion in model container [2018-02-04 04:07:17,328 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.02 04:07:17" (1/1) ... [2018-02-04 04:07:17,342 INFO L153 Dispatcher]: Using SV-COMP mode [2018-02-04 04:07:17,372 INFO L153 Dispatcher]: Using SV-COMP mode [2018-02-04 04:07:17,464 INFO L450 PostProcessor]: Settings: Checked method=main [2018-02-04 04:07:17,481 INFO L450 PostProcessor]: Settings: Checked method=main [2018-02-04 04:07:17,490 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 04:07:17 WrapperNode [2018-02-04 04:07:17,491 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-02-04 04:07:17,491 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-02-04 04:07:17,491 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-02-04 04:07:17,491 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-02-04 04:07:17,502 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 04:07:17" (1/1) ... [2018-02-04 04:07:17,502 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 04:07:17" (1/1) ... [2018-02-04 04:07:17,512 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 04:07:17" (1/1) ... [2018-02-04 04:07:17,513 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 04:07:17" (1/1) ... [2018-02-04 04:07:17,518 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 04:07:17" (1/1) ... [2018-02-04 04:07:17,521 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 04:07:17" (1/1) ... [2018-02-04 04:07:17,522 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 04:07:17" (1/1) ... [2018-02-04 04:07:17,523 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-02-04 04:07:17,524 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-02-04 04:07:17,524 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-02-04 04:07:17,524 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-02-04 04:07:17,525 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 04:07:17" (1/1) ... No working directory specified, using /home/ultimate/work/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 [2018-02-04 04:07:17,560 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-02-04 04:07:17,560 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-02-04 04:07:17,560 INFO L136 BoogieDeclarations]: Found implementation of procedure list_empty [2018-02-04 04:07:17,560 INFO L136 BoogieDeclarations]: Found implementation of procedure __list_add [2018-02-04 04:07:17,560 INFO L136 BoogieDeclarations]: Found implementation of procedure __list_del [2018-02-04 04:07:17,560 INFO L136 BoogieDeclarations]: Found implementation of procedure list_add [2018-02-04 04:07:17,561 INFO L136 BoogieDeclarations]: Found implementation of procedure list_move [2018-02-04 04:07:17,561 INFO L136 BoogieDeclarations]: Found implementation of procedure gl_insert [2018-02-04 04:07:17,561 INFO L136 BoogieDeclarations]: Found implementation of procedure gl_read [2018-02-04 04:07:17,561 INFO L136 BoogieDeclarations]: Found implementation of procedure gl_destroy [2018-02-04 04:07:17,561 INFO L136 BoogieDeclarations]: Found implementation of procedure val_from_node [2018-02-04 04:07:17,561 INFO L136 BoogieDeclarations]: Found implementation of procedure gl_seek_max [2018-02-04 04:07:17,561 INFO L136 BoogieDeclarations]: Found implementation of procedure gl_sort [2018-02-04 04:07:17,561 INFO L136 BoogieDeclarations]: Found implementation of procedure main [2018-02-04 04:07:17,561 INFO L128 BoogieDeclarations]: Found specification of procedure write~int [2018-02-04 04:07:17,561 INFO L128 BoogieDeclarations]: Found specification of procedure read~int [2018-02-04 04:07:17,561 INFO L128 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2018-02-04 04:07:17,561 INFO L128 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2018-02-04 04:07:17,561 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.free [2018-02-04 04:07:17,562 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-02-04 04:07:17,562 INFO L128 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-02-04 04:07:17,562 INFO L128 BoogieDeclarations]: Found specification of procedure free [2018-02-04 04:07:17,562 INFO L128 BoogieDeclarations]: Found specification of procedure abort [2018-02-04 04:07:17,562 INFO L128 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2018-02-04 04:07:17,562 INFO L128 BoogieDeclarations]: Found specification of procedure list_empty [2018-02-04 04:07:17,562 INFO L128 BoogieDeclarations]: Found specification of procedure __list_add [2018-02-04 04:07:17,562 INFO L128 BoogieDeclarations]: Found specification of procedure __list_del [2018-02-04 04:07:17,562 INFO L128 BoogieDeclarations]: Found specification of procedure list_add [2018-02-04 04:07:17,562 INFO L128 BoogieDeclarations]: Found specification of procedure list_move [2018-02-04 04:07:17,562 INFO L128 BoogieDeclarations]: Found specification of procedure gl_insert [2018-02-04 04:07:17,562 INFO L128 BoogieDeclarations]: Found specification of procedure gl_read [2018-02-04 04:07:17,562 INFO L128 BoogieDeclarations]: Found specification of procedure gl_destroy [2018-02-04 04:07:17,562 INFO L128 BoogieDeclarations]: Found specification of procedure val_from_node [2018-02-04 04:07:17,563 INFO L128 BoogieDeclarations]: Found specification of procedure gl_seek_max [2018-02-04 04:07:17,563 INFO L128 BoogieDeclarations]: Found specification of procedure gl_sort [2018-02-04 04:07:17,563 INFO L128 BoogieDeclarations]: Found specification of procedure main [2018-02-04 04:07:17,563 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-02-04 04:07:17,563 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-02-04 04:07:17,966 INFO L257 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-02-04 04:07:17,967 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.02 04:07:17 BoogieIcfgContainer [2018-02-04 04:07:17,967 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-02-04 04:07:17,968 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-02-04 04:07:17,968 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-02-04 04:07:17,971 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-02-04 04:07:17,971 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 04.02 04:07:17" (1/3) ... [2018-02-04 04:07:17,972 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@45d37a21 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.02 04:07:17, skipping insertion in model container [2018-02-04 04:07:17,972 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 04:07:17" (2/3) ... [2018-02-04 04:07:17,972 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@45d37a21 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.02 04:07:17, skipping insertion in model container [2018-02-04 04:07:17,972 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.02 04:07:17" (3/3) ... [2018-02-04 04:07:17,974 INFO L107 eAbstractionObserver]: Analyzing ICFG test-0137_false-valid-deref.i [2018-02-04 04:07:17,981 INFO L128 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-02-04 04:07:17,987 INFO L140 ceAbstractionStarter]: Appying trace abstraction to program that has 63 error locations. [2018-02-04 04:07:18,018 INFO L322 AbstractCegarLoop]: Interprodecural is true [2018-02-04 04:07:18,018 INFO L323 AbstractCegarLoop]: Hoare is false [2018-02-04 04:07:18,018 INFO L324 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-02-04 04:07:18,018 INFO L325 AbstractCegarLoop]: Backedges is TWOTRACK [2018-02-04 04:07:18,019 INFO L326 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-02-04 04:07:18,019 INFO L327 AbstractCegarLoop]: Difference is false [2018-02-04 04:07:18,019 INFO L328 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-02-04 04:07:18,019 INFO L333 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-02-04 04:07:18,019 INFO L87 2NestedWordAutomaton]: Mode: main mode - execution starts in main procedure [2018-02-04 04:07:18,031 INFO L276 IsEmpty]: Start isEmpty. Operand 188 states. [2018-02-04 04:07:18,037 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2018-02-04 04:07:18,037 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 04:07:18,038 INFO L351 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2018-02-04 04:07:18,038 INFO L371 AbstractCegarLoop]: === Iteration 1 === [__list_addErr1RequiresViolation, __list_addErr3RequiresViolation, __list_addErr0RequiresViolation, __list_addErr2RequiresViolation, __list_addErr4RequiresViolation, __list_addErr7RequiresViolation, __list_addErr5RequiresViolation, __list_addErr6RequiresViolation, ULTIMATE.initErr3RequiresViolation, ULTIMATE.initErr1RequiresViolation, ULTIMATE.initErr2RequiresViolation, ULTIMATE.initErr0RequiresViolation, val_from_nodeErr0RequiresViolation, val_from_nodeErr1RequiresViolation, list_moveErr0RequiresViolation, list_moveErr3RequiresViolation, list_moveErr2RequiresViolation, list_moveErr1RequiresViolation, gl_sortErr16RequiresViolation, gl_sortErr4RequiresViolation, gl_sortErr12RequiresViolation, gl_sortErr5RequiresViolation, gl_sortErr0RequiresViolation, gl_sortErr11RequiresViolation, gl_sortErr9RequiresViolation, gl_sortErr2RequiresViolation, gl_sortErr18RequiresViolation, gl_sortErr7RequiresViolation, gl_sortErr13RequiresViolation, gl_sortErr14RequiresViolation, gl_sortErr19RequiresViolation, gl_sortErr6RequiresViolation, gl_sortErr1RequiresViolation, gl_sortErr17RequiresViolation, gl_sortErr15RequiresViolation, gl_sortErr10RequiresViolation, gl_sortErr8RequiresViolation, gl_sortErr3RequiresViolation, list_addErr1RequiresViolation, list_addErr0RequiresViolation, list_emptyErr0RequiresViolation, list_emptyErr1RequiresViolation, __list_delErr0RequiresViolation, __list_delErr2RequiresViolation, __list_delErr3RequiresViolation, __list_delErr1RequiresViolation, mainErr0EnsuresViolation, gl_insertErr0RequiresViolation, gl_insertErr1RequiresViolation, gl_seek_maxErr0RequiresViolation, gl_seek_maxErr2RequiresViolation, gl_seek_maxErr1RequiresViolation, gl_seek_maxErr5RequiresViolation, gl_seek_maxErr3RequiresViolation, gl_seek_maxErr4RequiresViolation, gl_destroyErr4RequiresViolation, gl_destroyErr2RequiresViolation, gl_destroyErr0RequiresViolation, gl_destroyErr1RequiresViolation, gl_destroyErr6RequiresViolation, gl_destroyErr7RequiresViolation, gl_destroyErr3RequiresViolation, gl_destroyErr5RequiresViolation]=== [2018-02-04 04:07:18,041 INFO L82 PathProgramCache]: Analyzing trace with hash 8574872, now seen corresponding path program 1 times [2018-02-04 04:07:18,042 INFO L213 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-02-04 04:07:18,042 INFO L67 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-02-04 04:07:18,072 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 04:07:18,072 INFO L109 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-02-04 04:07:18,073 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 04:07:18,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 04:07:18,106 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-04 04:07:18,144 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 04:07:18,145 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-02-04 04:07:18,145 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-02-04 04:07:18,146 INFO L409 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-02-04 04:07:18,154 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-02-04 04:07:18,155 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-02-04 04:07:18,156 INFO L87 Difference]: Start difference. First operand 188 states. Second operand 3 states. [2018-02-04 04:07:18,359 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-04 04:07:18,359 INFO L93 Difference]: Finished difference Result 189 states and 199 transitions. [2018-02-04 04:07:18,359 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-02-04 04:07:18,360 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 4 [2018-02-04 04:07:18,360 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-04 04:07:18,368 INFO L225 Difference]: With dead ends: 189 [2018-02-04 04:07:18,368 INFO L226 Difference]: Without dead ends: 186 [2018-02-04 04:07:18,369 INFO L554 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 [2018-02-04 04:07:18,379 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 186 states. [2018-02-04 04:07:18,396 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 186 to 185. [2018-02-04 04:07:18,397 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 185 states. [2018-02-04 04:07:18,399 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 185 states to 185 states and 196 transitions. [2018-02-04 04:07:18,400 INFO L78 Accepts]: Start accepts. Automaton has 185 states and 196 transitions. Word has length 4 [2018-02-04 04:07:18,400 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-04 04:07:18,400 INFO L432 AbstractCegarLoop]: Abstraction has 185 states and 196 transitions. [2018-02-04 04:07:18,400 INFO L433 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-02-04 04:07:18,400 INFO L276 IsEmpty]: Start isEmpty. Operand 185 states and 196 transitions. [2018-02-04 04:07:18,400 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2018-02-04 04:07:18,401 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 04:07:18,401 INFO L351 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2018-02-04 04:07:18,401 INFO L371 AbstractCegarLoop]: === Iteration 2 === [__list_addErr1RequiresViolation, __list_addErr3RequiresViolation, __list_addErr0RequiresViolation, __list_addErr2RequiresViolation, __list_addErr4RequiresViolation, __list_addErr7RequiresViolation, __list_addErr5RequiresViolation, __list_addErr6RequiresViolation, ULTIMATE.initErr3RequiresViolation, ULTIMATE.initErr1RequiresViolation, ULTIMATE.initErr2RequiresViolation, ULTIMATE.initErr0RequiresViolation, val_from_nodeErr0RequiresViolation, val_from_nodeErr1RequiresViolation, list_moveErr0RequiresViolation, list_moveErr3RequiresViolation, list_moveErr2RequiresViolation, list_moveErr1RequiresViolation, gl_sortErr16RequiresViolation, gl_sortErr4RequiresViolation, gl_sortErr12RequiresViolation, gl_sortErr5RequiresViolation, gl_sortErr0RequiresViolation, gl_sortErr11RequiresViolation, gl_sortErr9RequiresViolation, gl_sortErr2RequiresViolation, gl_sortErr18RequiresViolation, gl_sortErr7RequiresViolation, gl_sortErr13RequiresViolation, gl_sortErr14RequiresViolation, gl_sortErr19RequiresViolation, gl_sortErr6RequiresViolation, gl_sortErr1RequiresViolation, gl_sortErr17RequiresViolation, gl_sortErr15RequiresViolation, gl_sortErr10RequiresViolation, gl_sortErr8RequiresViolation, gl_sortErr3RequiresViolation, list_addErr1RequiresViolation, list_addErr0RequiresViolation, list_emptyErr0RequiresViolation, list_emptyErr1RequiresViolation, __list_delErr0RequiresViolation, __list_delErr2RequiresViolation, __list_delErr3RequiresViolation, __list_delErr1RequiresViolation, mainErr0EnsuresViolation, gl_insertErr0RequiresViolation, gl_insertErr1RequiresViolation, gl_seek_maxErr0RequiresViolation, gl_seek_maxErr2RequiresViolation, gl_seek_maxErr1RequiresViolation, gl_seek_maxErr5RequiresViolation, gl_seek_maxErr3RequiresViolation, gl_seek_maxErr4RequiresViolation, gl_destroyErr4RequiresViolation, gl_destroyErr2RequiresViolation, gl_destroyErr0RequiresViolation, gl_destroyErr1RequiresViolation, gl_destroyErr6RequiresViolation, gl_destroyErr7RequiresViolation, gl_destroyErr3RequiresViolation, gl_destroyErr5RequiresViolation]=== [2018-02-04 04:07:18,401 INFO L82 PathProgramCache]: Analyzing trace with hash 8574873, now seen corresponding path program 1 times [2018-02-04 04:07:18,401 INFO L213 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-02-04 04:07:18,401 INFO L67 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-02-04 04:07:18,402 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 04:07:18,403 INFO L109 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-02-04 04:07:18,403 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 04:07:18,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 04:07:18,416 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-04 04:07:18,460 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 04:07:18,460 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-02-04 04:07:18,460 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-02-04 04:07:18,461 INFO L409 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-02-04 04:07:18,461 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-02-04 04:07:18,462 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-02-04 04:07:18,462 INFO L87 Difference]: Start difference. First operand 185 states and 196 transitions. Second operand 3 states. [2018-02-04 04:07:18,563 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-04 04:07:18,563 INFO L93 Difference]: Finished difference Result 187 states and 199 transitions. [2018-02-04 04:07:18,564 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-02-04 04:07:18,564 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 4 [2018-02-04 04:07:18,564 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-04 04:07:18,566 INFO L225 Difference]: With dead ends: 187 [2018-02-04 04:07:18,567 INFO L226 Difference]: Without dead ends: 187 [2018-02-04 04:07:18,567 INFO L554 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 [2018-02-04 04:07:18,568 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 187 states. [2018-02-04 04:07:18,577 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 187 to 183. [2018-02-04 04:07:18,577 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 183 states. [2018-02-04 04:07:18,579 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 183 states to 183 states and 194 transitions. [2018-02-04 04:07:18,579 INFO L78 Accepts]: Start accepts. Automaton has 183 states and 194 transitions. Word has length 4 [2018-02-04 04:07:18,580 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-04 04:07:18,580 INFO L432 AbstractCegarLoop]: Abstraction has 183 states and 194 transitions. [2018-02-04 04:07:18,580 INFO L433 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-02-04 04:07:18,580 INFO L276 IsEmpty]: Start isEmpty. Operand 183 states and 194 transitions. [2018-02-04 04:07:18,580 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2018-02-04 04:07:18,581 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 04:07:18,581 INFO L351 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-04 04:07:18,581 INFO L371 AbstractCegarLoop]: === Iteration 3 === [__list_addErr1RequiresViolation, __list_addErr3RequiresViolation, __list_addErr0RequiresViolation, __list_addErr2RequiresViolation, __list_addErr4RequiresViolation, __list_addErr7RequiresViolation, __list_addErr5RequiresViolation, __list_addErr6RequiresViolation, ULTIMATE.initErr3RequiresViolation, ULTIMATE.initErr1RequiresViolation, ULTIMATE.initErr2RequiresViolation, ULTIMATE.initErr0RequiresViolation, val_from_nodeErr0RequiresViolation, val_from_nodeErr1RequiresViolation, list_moveErr0RequiresViolation, list_moveErr3RequiresViolation, list_moveErr2RequiresViolation, list_moveErr1RequiresViolation, gl_sortErr16RequiresViolation, gl_sortErr4RequiresViolation, gl_sortErr12RequiresViolation, gl_sortErr5RequiresViolation, gl_sortErr0RequiresViolation, gl_sortErr11RequiresViolation, gl_sortErr9RequiresViolation, gl_sortErr2RequiresViolation, gl_sortErr18RequiresViolation, gl_sortErr7RequiresViolation, gl_sortErr13RequiresViolation, gl_sortErr14RequiresViolation, gl_sortErr19RequiresViolation, gl_sortErr6RequiresViolation, gl_sortErr1RequiresViolation, gl_sortErr17RequiresViolation, gl_sortErr15RequiresViolation, gl_sortErr10RequiresViolation, gl_sortErr8RequiresViolation, gl_sortErr3RequiresViolation, list_addErr1RequiresViolation, list_addErr0RequiresViolation, list_emptyErr0RequiresViolation, list_emptyErr1RequiresViolation, __list_delErr0RequiresViolation, __list_delErr2RequiresViolation, __list_delErr3RequiresViolation, __list_delErr1RequiresViolation, mainErr0EnsuresViolation, gl_insertErr0RequiresViolation, gl_insertErr1RequiresViolation, gl_seek_maxErr0RequiresViolation, gl_seek_maxErr2RequiresViolation, gl_seek_maxErr1RequiresViolation, gl_seek_maxErr5RequiresViolation, gl_seek_maxErr3RequiresViolation, gl_seek_maxErr4RequiresViolation, gl_destroyErr4RequiresViolation, gl_destroyErr2RequiresViolation, gl_destroyErr0RequiresViolation, gl_destroyErr1RequiresViolation, gl_destroyErr6RequiresViolation, gl_destroyErr7RequiresViolation, gl_destroyErr3RequiresViolation, gl_destroyErr5RequiresViolation]=== [2018-02-04 04:07:18,581 INFO L82 PathProgramCache]: Analyzing trace with hash 1609065266, now seen corresponding path program 1 times [2018-02-04 04:07:18,581 INFO L213 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-02-04 04:07:18,581 INFO L67 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-02-04 04:07:18,582 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 04:07:18,582 INFO L109 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-02-04 04:07:18,583 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 04:07:18,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 04:07:18,601 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-04 04:07:18,633 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 04:07:18,634 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-02-04 04:07:18,634 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-02-04 04:07:18,634 INFO L409 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-02-04 04:07:18,634 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-02-04 04:07:18,635 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-02-04 04:07:18,635 INFO L87 Difference]: Start difference. First operand 183 states and 194 transitions. Second operand 4 states. [2018-02-04 04:07:18,776 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-04 04:07:18,777 INFO L93 Difference]: Finished difference Result 182 states and 193 transitions. [2018-02-04 04:07:18,777 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-02-04 04:07:18,777 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 16 [2018-02-04 04:07:18,777 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-04 04:07:18,778 INFO L225 Difference]: With dead ends: 182 [2018-02-04 04:07:18,779 INFO L226 Difference]: Without dead ends: 182 [2018-02-04 04:07:18,779 INFO L554 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 [2018-02-04 04:07:18,779 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 182 states. [2018-02-04 04:07:18,786 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 182 to 182. [2018-02-04 04:07:18,786 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 182 states. [2018-02-04 04:07:18,788 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 182 states to 182 states and 193 transitions. [2018-02-04 04:07:18,788 INFO L78 Accepts]: Start accepts. Automaton has 182 states and 193 transitions. Word has length 16 [2018-02-04 04:07:18,788 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-04 04:07:18,788 INFO L432 AbstractCegarLoop]: Abstraction has 182 states and 193 transitions. [2018-02-04 04:07:18,788 INFO L433 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-02-04 04:07:18,788 INFO L276 IsEmpty]: Start isEmpty. Operand 182 states and 193 transitions. [2018-02-04 04:07:18,789 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2018-02-04 04:07:18,789 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 04:07:18,789 INFO L351 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-04 04:07:18,789 INFO L371 AbstractCegarLoop]: === Iteration 4 === [__list_addErr1RequiresViolation, __list_addErr3RequiresViolation, __list_addErr0RequiresViolation, __list_addErr2RequiresViolation, __list_addErr4RequiresViolation, __list_addErr7RequiresViolation, __list_addErr5RequiresViolation, __list_addErr6RequiresViolation, ULTIMATE.initErr3RequiresViolation, ULTIMATE.initErr1RequiresViolation, ULTIMATE.initErr2RequiresViolation, ULTIMATE.initErr0RequiresViolation, val_from_nodeErr0RequiresViolation, val_from_nodeErr1RequiresViolation, list_moveErr0RequiresViolation, list_moveErr3RequiresViolation, list_moveErr2RequiresViolation, list_moveErr1RequiresViolation, gl_sortErr16RequiresViolation, gl_sortErr4RequiresViolation, gl_sortErr12RequiresViolation, gl_sortErr5RequiresViolation, gl_sortErr0RequiresViolation, gl_sortErr11RequiresViolation, gl_sortErr9RequiresViolation, gl_sortErr2RequiresViolation, gl_sortErr18RequiresViolation, gl_sortErr7RequiresViolation, gl_sortErr13RequiresViolation, gl_sortErr14RequiresViolation, gl_sortErr19RequiresViolation, gl_sortErr6RequiresViolation, gl_sortErr1RequiresViolation, gl_sortErr17RequiresViolation, gl_sortErr15RequiresViolation, gl_sortErr10RequiresViolation, gl_sortErr8RequiresViolation, gl_sortErr3RequiresViolation, list_addErr1RequiresViolation, list_addErr0RequiresViolation, list_emptyErr0RequiresViolation, list_emptyErr1RequiresViolation, __list_delErr0RequiresViolation, __list_delErr2RequiresViolation, __list_delErr3RequiresViolation, __list_delErr1RequiresViolation, mainErr0EnsuresViolation, gl_insertErr0RequiresViolation, gl_insertErr1RequiresViolation, gl_seek_maxErr0RequiresViolation, gl_seek_maxErr2RequiresViolation, gl_seek_maxErr1RequiresViolation, gl_seek_maxErr5RequiresViolation, gl_seek_maxErr3RequiresViolation, gl_seek_maxErr4RequiresViolation, gl_destroyErr4RequiresViolation, gl_destroyErr2RequiresViolation, gl_destroyErr0RequiresViolation, gl_destroyErr1RequiresViolation, gl_destroyErr6RequiresViolation, gl_destroyErr7RequiresViolation, gl_destroyErr3RequiresViolation, gl_destroyErr5RequiresViolation]=== [2018-02-04 04:07:18,789 INFO L82 PathProgramCache]: Analyzing trace with hash 1609065267, now seen corresponding path program 1 times [2018-02-04 04:07:18,789 INFO L213 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-02-04 04:07:18,789 INFO L67 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-02-04 04:07:18,790 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 04:07:18,790 INFO L109 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-02-04 04:07:18,790 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 04:07:18,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 04:07:18,808 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-04 04:07:18,859 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 04:07:18,859 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-02-04 04:07:18,859 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-02-04 04:07:18,859 INFO L409 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-02-04 04:07:18,860 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-02-04 04:07:18,860 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-02-04 04:07:18,860 INFO L87 Difference]: Start difference. First operand 182 states and 193 transitions. Second operand 4 states. [2018-02-04 04:07:18,969 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-04 04:07:18,969 INFO L93 Difference]: Finished difference Result 181 states and 192 transitions. [2018-02-04 04:07:18,969 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-02-04 04:07:18,969 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 16 [2018-02-04 04:07:18,969 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-04 04:07:18,970 INFO L225 Difference]: With dead ends: 181 [2018-02-04 04:07:18,970 INFO L226 Difference]: Without dead ends: 181 [2018-02-04 04:07:18,971 INFO L554 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 [2018-02-04 04:07:18,971 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 181 states. [2018-02-04 04:07:18,976 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 181 to 181. [2018-02-04 04:07:18,976 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 181 states. [2018-02-04 04:07:18,977 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 181 states to 181 states and 192 transitions. [2018-02-04 04:07:18,977 INFO L78 Accepts]: Start accepts. Automaton has 181 states and 192 transitions. Word has length 16 [2018-02-04 04:07:18,978 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-04 04:07:18,978 INFO L432 AbstractCegarLoop]: Abstraction has 181 states and 192 transitions. [2018-02-04 04:07:18,978 INFO L433 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-02-04 04:07:18,978 INFO L276 IsEmpty]: Start isEmpty. Operand 181 states and 192 transitions. [2018-02-04 04:07:18,978 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2018-02-04 04:07:18,978 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 04:07:18,978 INFO L351 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-04 04:07:18,978 INFO L371 AbstractCegarLoop]: === Iteration 5 === [__list_addErr1RequiresViolation, __list_addErr3RequiresViolation, __list_addErr0RequiresViolation, __list_addErr2RequiresViolation, __list_addErr4RequiresViolation, __list_addErr7RequiresViolation, __list_addErr5RequiresViolation, __list_addErr6RequiresViolation, ULTIMATE.initErr3RequiresViolation, ULTIMATE.initErr1RequiresViolation, ULTIMATE.initErr2RequiresViolation, ULTIMATE.initErr0RequiresViolation, val_from_nodeErr0RequiresViolation, val_from_nodeErr1RequiresViolation, list_moveErr0RequiresViolation, list_moveErr3RequiresViolation, list_moveErr2RequiresViolation, list_moveErr1RequiresViolation, gl_sortErr16RequiresViolation, gl_sortErr4RequiresViolation, gl_sortErr12RequiresViolation, gl_sortErr5RequiresViolation, gl_sortErr0RequiresViolation, gl_sortErr11RequiresViolation, gl_sortErr9RequiresViolation, gl_sortErr2RequiresViolation, gl_sortErr18RequiresViolation, gl_sortErr7RequiresViolation, gl_sortErr13RequiresViolation, gl_sortErr14RequiresViolation, gl_sortErr19RequiresViolation, gl_sortErr6RequiresViolation, gl_sortErr1RequiresViolation, gl_sortErr17RequiresViolation, gl_sortErr15RequiresViolation, gl_sortErr10RequiresViolation, gl_sortErr8RequiresViolation, gl_sortErr3RequiresViolation, list_addErr1RequiresViolation, list_addErr0RequiresViolation, list_emptyErr0RequiresViolation, list_emptyErr1RequiresViolation, __list_delErr0RequiresViolation, __list_delErr2RequiresViolation, __list_delErr3RequiresViolation, __list_delErr1RequiresViolation, mainErr0EnsuresViolation, gl_insertErr0RequiresViolation, gl_insertErr1RequiresViolation, gl_seek_maxErr0RequiresViolation, gl_seek_maxErr2RequiresViolation, gl_seek_maxErr1RequiresViolation, gl_seek_maxErr5RequiresViolation, gl_seek_maxErr3RequiresViolation, gl_seek_maxErr4RequiresViolation, gl_destroyErr4RequiresViolation, gl_destroyErr2RequiresViolation, gl_destroyErr0RequiresViolation, gl_destroyErr1RequiresViolation, gl_destroyErr6RequiresViolation, gl_destroyErr7RequiresViolation, gl_destroyErr3RequiresViolation, gl_destroyErr5RequiresViolation]=== [2018-02-04 04:07:18,979 INFO L82 PathProgramCache]: Analyzing trace with hash -466429743, now seen corresponding path program 1 times [2018-02-04 04:07:18,979 INFO L213 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-02-04 04:07:18,979 INFO L67 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-02-04 04:07:18,979 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 04:07:18,979 INFO L109 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-02-04 04:07:18,980 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 04:07:19,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 04:07:19,002 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-04 04:07:19,010 FATAL L292 ToolchainWalker]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.UnsupportedOperationException: Unknown lemma type! at de.uni_freiburg.informatik.ultimate.smtinterpol.interpolate.Interpolator.walkLeafNode(Interpolator.java:299) at de.uni_freiburg.informatik.ultimate.smtinterpol.interpolate.Interpolator.access$1(Interpolator.java:263) at de.uni_freiburg.informatik.ultimate.smtinterpol.interpolate.Interpolator$ProofTreeWalker.walk(Interpolator.java:132) at de.uni_freiburg.informatik.ultimate.logic.NonRecursive.run(NonRecursive.java:122) at de.uni_freiburg.informatik.ultimate.logic.NonRecursive.run(NonRecursive.java:113) at de.uni_freiburg.informatik.ultimate.smtinterpol.interpolate.Interpolator.interpolate(Interpolator.java:220) at de.uni_freiburg.informatik.ultimate.smtinterpol.interpolate.Interpolator.getInterpolants(Interpolator.java:201) at de.uni_freiburg.informatik.ultimate.smtinterpol.smtlib2.SMTInterpol.getInterpolants(SMTInterpol.java:915) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.managedscript.ManagedScript.getInterpolants(ManagedScript.java:192) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.NestedInterpolantsBuilder.computeCraigInterpolants(NestedInterpolantsBuilder.java:281) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.NestedInterpolantsBuilder.(NestedInterpolantsBuilder.java:164) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.InterpolatingTraceCheckCraig.computeInterpolantsTree(InterpolatingTraceCheckCraig.java:263) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.InterpolatingTraceCheckCraig.computeInterpolants(InterpolatingTraceCheckCraig.java:199) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.InterpolatingTraceCheckCraig.(InterpolatingTraceCheckCraig.java:106) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceCheckConstructor.constructCraig(TraceCheckConstructor.java:222) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceCheckConstructor.get(TraceCheckConstructor.java:179) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.MultiTrackTraceAbstractionRefinementStrategy.getTraceCheck(MultiTrackTraceAbstractionRefinementStrategy.java:222) 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:397) 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:292) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:147) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:115) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:119) 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) [2018-02-04 04:07:19,013 INFO L168 Benchmark]: Toolchain (without parser) took 1696.11 ms. Allocated memory was 403.2 MB in the beginning and 614.5 MB in the end (delta: 211.3 MB). Free memory was 360.1 MB in the beginning and 475.3 MB in the end (delta: -115.2 MB). Peak memory consumption was 96.1 MB. Max. memory is 5.3 GB. [2018-02-04 04:07:19,014 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 403.2 MB. Free memory is still 366.7 MB. There was no memory consumed. Max. memory is 5.3 GB. [2018-02-04 04:07:19,015 INFO L168 Benchmark]: CACSL2BoogieTranslator took 172.55 ms. Allocated memory is still 403.2 MB. Free memory was 360.1 MB in the beginning and 348.0 MB in the end (delta: 12.1 MB). Peak memory consumption was 12.1 MB. Max. memory is 5.3 GB. [2018-02-04 04:07:19,015 INFO L168 Benchmark]: Boogie Preprocessor took 32.48 ms. Allocated memory is still 403.2 MB. Free memory was 348.0 MB in the beginning and 346.7 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 5.3 GB. [2018-02-04 04:07:19,015 INFO L168 Benchmark]: RCFGBuilder took 443.45 ms. Allocated memory is still 403.2 MB. Free memory was 346.7 MB in the beginning and 300.6 MB in the end (delta: 46.0 MB). Peak memory consumption was 46.0 MB. Max. memory is 5.3 GB. [2018-02-04 04:07:19,015 INFO L168 Benchmark]: TraceAbstraction took 1044.54 ms. Allocated memory was 403.2 MB in the beginning and 614.5 MB in the end (delta: 211.3 MB). Free memory was 299.3 MB in the beginning and 475.3 MB in the end (delta: -175.9 MB). Peak memory consumption was 35.3 MB. Max. memory is 5.3 GB. [2018-02-04 04:07:19,017 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 403.2 MB. Free memory is still 366.7 MB. There was no memory consumed. Max. memory is 5.3 GB. * CACSL2BoogieTranslator took 172.55 ms. Allocated memory is still 403.2 MB. Free memory was 360.1 MB in the beginning and 348.0 MB in the end (delta: 12.1 MB). Peak memory consumption was 12.1 MB. Max. memory is 5.3 GB. * Boogie Preprocessor took 32.48 ms. Allocated memory is still 403.2 MB. Free memory was 348.0 MB in the beginning and 346.7 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 5.3 GB. * RCFGBuilder took 443.45 ms. Allocated memory is still 403.2 MB. Free memory was 346.7 MB in the beginning and 300.6 MB in the end (delta: 46.0 MB). Peak memory consumption was 46.0 MB. Max. memory is 5.3 GB. * TraceAbstraction took 1044.54 ms. Allocated memory was 403.2 MB in the beginning and 614.5 MB in the end (delta: 211.3 MB). Free memory was 299.3 MB in the beginning and 475.3 MB in the end (delta: -175.9 MB). Peak memory consumption was 35.3 MB. Max. memory is 5.3 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: UnsupportedOperationException: Unknown lemma type! de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: UnsupportedOperationException: Unknown lemma type!: de.uni_freiburg.informatik.ultimate.smtinterpol.interpolate.Interpolator.walkLeafNode(Interpolator.java:299) RESULT: Ultimate could not prove your program: Toolchain returned no result. Written .csv to /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/test-0137_false-valid-deref.i_svcomp-DerefFreeMemtrack-32bit-Automizer_SmtInterpol_NoArray.epf_AutomizerC.xml/Csv-Benchmark-0-2018-02-04_04-07-19-023.csv Received shutdown request...