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_Fixed_noBitfields+AI_EQ_SS.epf -i ../../../trunk/examples/svcomp/array-memsafety/bubblesort_unsafe_false-valid-deref.i -------------------------------------------------------------------------------- This is Ultimate 0.1.23-835382a-m [2018-04-05 15:15:38,267 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-04-05 15:15:38,269 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-04-05 15:15:38,314 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-04-05 15:15:38,323 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-04-05 15:15:38,324 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-04-05 15:15:38,327 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-04-05 15:15:38,335 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-04-05 15:15:38,338 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-04-05 15:15:38,339 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-04-05 15:15:38,344 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-04-05 15:15:38,344 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-04-05 15:15:38,346 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-04-05 15:15:38,355 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-04-05 15:15:38,356 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-04-05 15:15:38,372 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-04-05 15:15:38,374 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-04-05 15:15:38,386 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-04-05 15:15:38,387 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-04-05 15:15:38,394 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-04-05 15:15:38,397 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-04-05 15:15:38,399 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-04-05 15:15:38,400 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-04-05 15:15:38,401 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-04-05 15:15:38,402 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-04-05 15:15:38,408 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-04-05 15:15:38,408 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-04-05 15:15:38,409 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-04-05 15:15:38,410 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-04-05 15:15:38,410 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-04-05 15:15:38,418 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-04-05 15:15:38,419 INFO L98 SettingsManager]: Beginning loading settings from /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/ai/eq-bench/svcomp-DerefFreeMemtrack-32bit-Automizer_Fixed_noBitfields+AI_EQ_SS.epf [2018-04-05 15:15:38,498 INFO L110 SettingsManager]: Loading preferences was successful [2018-04-05 15:15:38,499 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-04-05 15:15:38,499 INFO L131 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2018-04-05 15:15:38,499 INFO L133 SettingsManager]: * ultimate.logging.details=de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation=DEBUG; [2018-04-05 15:15:38,502 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-04-05 15:15:38,502 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-04-05 15:15:38,503 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-04-05 15:15:38,503 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=VPDomain [2018-04-05 15:15:38,503 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-04-05 15:15:38,504 INFO L131 SettingsManager]: Preferences of LTL2Aut differ from their defaults: [2018-04-05 15:15:38,504 INFO L133 SettingsManager]: * Property to check=[] a a: x > 42 [2018-04-05 15:15:38,504 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-04-05 15:15:38,505 INFO L133 SettingsManager]: * sizeof long=4 [2018-04-05 15:15:38,505 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-04-05 15:15:38,505 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-04-05 15:15:38,510 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-04-05 15:15:38,510 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-04-05 15:15:38,510 INFO L133 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2018-04-05 15:15:38,511 INFO L133 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2018-04-05 15:15:38,511 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-04-05 15:15:38,511 INFO L133 SettingsManager]: * sizeof long double=12 [2018-04-05 15:15:38,511 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-04-05 15:15:38,511 INFO L133 SettingsManager]: * Size of a code block=SingleStatement [2018-04-05 15:15:38,512 INFO L133 SettingsManager]: * Add additional assume for each assert=false [2018-04-05 15:15:38,512 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-04-05 15:15:38,512 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-04-05 15:15:38,512 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-04-05 15:15:38,512 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-04-05 15:15:38,512 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-04-05 15:15:38,513 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-04-05 15:15:38,513 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-04-05 15:15:38,513 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-05 15:15:38,513 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-04-05 15:15:38,527 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-04-05 15:15:38,527 INFO L133 SettingsManager]: * TransformationType=HEAP_SEPARATOR [2018-04-05 15:15:38,528 INFO L131 SettingsManager]: Preferences of Boogie Printer differ from their defaults: [2018-04-05 15:15:38,528 INFO L133 SettingsManager]: * Dump path:=C:\Users\alex\AppData\Local\Temp\ [2018-04-05 15:15:38,642 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-04-05 15:15:38,689 INFO L266 ainManager$Toolchain]: [Toolchain 1]: Parser(s) successfully (re)initialized [2018-04-05 15:15:38,710 INFO L222 ainManager$Toolchain]: [Toolchain 1]: Toolchain data selected. [2018-04-05 15:15:38,712 INFO L271 PluginConnector]: Initializing CDTParser... [2018-04-05 15:15:38,713 INFO L276 PluginConnector]: CDTParser initialized [2018-04-05 15:15:38,719 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/array-memsafety/bubblesort_unsafe_false-valid-deref.i [2018-04-05 15:15:39,313 INFO L225 CDTParser]: Created temporary CDT project at /storage/ultimate/releaseScripts/default/UAutomizer-linux/data/FLAG930f66e51 [2018-04-05 15:15:39,654 INFO L287 CDTParser]: IsIndexed: true [2018-04-05 15:15:39,654 INFO L288 CDTParser]: Found 1 translation units. [2018-04-05 15:15:39,655 INFO L168 CDTParser]: Scanning bubblesort_unsafe_false-valid-deref.i [2018-04-05 15:15:39,660 INFO L210 ultiparseSymbolTable]: Include resolver: [2018-04-05 15:15:39,660 INFO L215 ultiparseSymbolTable]: [2018-04-05 15:15:39,660 INFO L218 ultiparseSymbolTable]: Function table: [2018-04-05 15:15:39,661 INFO L221 ultiparseSymbolTable]: Function definition of null ('main') in bubblesort_unsafe_false-valid-deref.i [2018-04-05 15:15:39,661 INFO L221 ultiparseSymbolTable]: Function definition of __U_MULTI_fbubblesort_unsafe_false_valid_deref_i__bubbleSort ('bubbleSort') in bubblesort_unsafe_false-valid-deref.i [2018-04-05 15:15:39,661 INFO L227 ultiparseSymbolTable]: Global variable table: [2018-04-05 15:15:39,661 INFO L233 ultiparseSymbolTable]: [2018-04-05 15:15:39,695 INFO L330 CDTParser]: Deleted temporary CDT project at /storage/ultimate/releaseScripts/default/UAutomizer-linux/data/FLAG930f66e51 [2018-04-05 15:15:39,707 INFO L304 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-04-05 15:15:39,713 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-04-05 15:15:39,714 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-04-05 15:15:39,715 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-04-05 15:15:39,729 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-04-05 15:15:39,731 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.04 03:15:39" (1/1) ... [2018-04-05 15:15:39,738 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5dede8b0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.04 03:15:39, skipping insertion in model container [2018-04-05 15:15:39,738 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.04 03:15:39" (1/1) ... [2018-04-05 15:15:39,766 INFO L167 Dispatcher]: Using SV-COMP mode [2018-04-05 15:15:39,793 INFO L167 Dispatcher]: Using SV-COMP mode [2018-04-05 15:15:40,101 INFO L175 PostProcessor]: Settings: Checked method=main [2018-04-05 15:15:40,170 INFO L175 PostProcessor]: Settings: Checked method=main [2018-04-05 15:15:40,177 INFO L100 SccComputation]: Graph consists of 0 InCaSumBalls and 9 non ball SCCs. Number of states in SCCs 9. [2018-04-05 15:15:40,204 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.04 03:15:40 WrapperNode [2018-04-05 15:15:40,205 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-04-05 15:15:40,206 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-04-05 15:15:40,206 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-04-05 15:15:40,206 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-04-05 15:15:40,221 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.04 03:15:40" (1/1) ... [2018-04-05 15:15:40,221 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.04 03:15:40" (1/1) ... [2018-04-05 15:15:40,233 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.04 03:15:40" (1/1) ... [2018-04-05 15:15:40,233 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.04 03:15:40" (1/1) ... [2018-04-05 15:15:40,241 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.04 03:15:40" (1/1) ... [2018-04-05 15:15:40,260 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.04 03:15:40" (1/1) ... [2018-04-05 15:15:40,262 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.04 03:15:40" (1/1) ... [2018-04-05 15:15:40,264 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-04-05 15:15:40,271 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-04-05 15:15:40,271 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-04-05 15:15:40,272 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-04-05 15:15:40,273 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.04 03:15:40" (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 [2018-04-05 15:15:40,406 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-04-05 15:15:40,407 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-04-05 15:15:40,407 INFO L136 BoogieDeclarations]: Found implementation of procedure __U_MULTI_fbubblesort_unsafe_false_valid_deref_i__bubbleSort [2018-04-05 15:15:40,407 INFO L136 BoogieDeclarations]: Found implementation of procedure main [2018-04-05 15:15:40,407 INFO L128 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2018-04-05 15:15:40,409 INFO L128 BoogieDeclarations]: Found specification of procedure __U_MULTI_fbubblesort_unsafe_false_valid_deref_i__bubbleSort [2018-04-05 15:15:40,410 INFO L128 BoogieDeclarations]: Found specification of procedure read~int [2018-04-05 15:15:40,410 INFO L128 BoogieDeclarations]: Found specification of procedure write~int [2018-04-05 15:15:40,410 INFO L128 BoogieDeclarations]: Found specification of procedure main [2018-04-05 15:15:40,410 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-04-05 15:15:40,410 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-04-05 15:15:40,410 INFO L128 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2018-04-05 15:15:40,411 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-04-05 15:15:41,363 INFO L259 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-04-05 15:15:41,364 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.04 03:15:41 BoogieIcfgContainer [2018-04-05 15:15:41,364 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-04-05 15:15:41,370 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-04-05 15:15:41,371 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-04-05 15:15:41,379 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-04-05 15:15:41,379 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 05.04 03:15:39" (1/3) ... [2018-04-05 15:15:41,380 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@531e9eab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.04 03:15:41, skipping insertion in model container [2018-04-05 15:15:41,380 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.04 03:15:40" (2/3) ... [2018-04-05 15:15:41,381 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@531e9eab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.04 03:15:41, skipping insertion in model container [2018-04-05 15:15:41,381 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.04 03:15:41" (3/3) ... [2018-04-05 15:15:41,383 INFO L107 eAbstractionObserver]: Analyzing ICFG bubblesort_unsafe_false-valid-deref.i [2018-04-05 15:15:41,429 INFO L131 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-04-05 15:15:41,576 INFO L143 ceAbstractionStarter]: Appying trace abstraction to program that has 13 error locations. [2018-04-05 15:15:41,663 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2018-04-05 15:15:41,664 INFO L369 AbstractCegarLoop]: Interprodecural is true [2018-04-05 15:15:41,664 INFO L370 AbstractCegarLoop]: Hoare is true [2018-04-05 15:15:41,664 INFO L371 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-04-05 15:15:41,664 INFO L372 AbstractCegarLoop]: Backedges is TWOTRACK [2018-04-05 15:15:41,664 INFO L373 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-04-05 15:15:41,664 INFO L374 AbstractCegarLoop]: Difference is false [2018-04-05 15:15:41,665 INFO L375 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-04-05 15:15:41,665 INFO L380 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-04-05 15:15:41,680 INFO L87 2NestedWordAutomaton]: Mode: main mode - execution starts in main procedure [2018-04-05 15:15:41,741 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states. [2018-04-05 15:15:41,753 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2018-04-05 15:15:41,753 INFO L347 BasicCegarLoop]: Found error trace [2018-04-05 15:15:41,754 INFO L355 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] [2018-04-05 15:15:41,754 INFO L408 AbstractCegarLoop]: === Iteration 1 === [__U_MULTI_fbubblesort_unsafe_false_valid_deref_i__bubbleSortErr9RequiresViolation, __U_MULTI_fbubblesort_unsafe_false_valid_deref_i__bubbleSortErr7RequiresViolation, __U_MULTI_fbubblesort_unsafe_false_valid_deref_i__bubbleSortErr10RequiresViolation, __U_MULTI_fbubblesort_unsafe_false_valid_deref_i__bubbleSortErr2RequiresViolation, __U_MULTI_fbubblesort_unsafe_false_valid_deref_i__bubbleSortErr5RequiresViolation, __U_MULTI_fbubblesort_unsafe_false_valid_deref_i__bubbleSortErr3RequiresViolation, __U_MULTI_fbubblesort_unsafe_false_valid_deref_i__bubbleSortErr4RequiresViolation, __U_MULTI_fbubblesort_unsafe_false_valid_deref_i__bubbleSortErr11RequiresViolation, __U_MULTI_fbubblesort_unsafe_false_valid_deref_i__bubbleSortErr8RequiresViolation, __U_MULTI_fbubblesort_unsafe_false_valid_deref_i__bubbleSortErr1RequiresViolation, __U_MULTI_fbubblesort_unsafe_false_valid_deref_i__bubbleSortErr0RequiresViolation, __U_MULTI_fbubblesort_unsafe_false_valid_deref_i__bubbleSortErr6RequiresViolation, mainErr0EnsuresViolationMEMORY_LEAK]=== [2018-04-05 15:15:41,761 INFO L82 PathProgramCache]: Analyzing trace with hash 633836373, now seen corresponding path program 1 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-05 15:15:41,815 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-05 15:15:41,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-05 15:15:41,992 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-05 15:15:42,050 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-05 15:15:42,060 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-05 15:15:42,133 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-05 15:15:42,179 INFO L320 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2018-04-05 15:15:42,181 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2018-04-05 15:15:42,184 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-04-05 15:15:42,201 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-04-05 15:15:42,202 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-04-05 15:15:42,204 INFO L87 Difference]: Start difference. First operand 62 states. Second operand 2 states. [2018-04-05 15:15:42,249 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-05 15:15:42,249 INFO L93 Difference]: Finished difference Result 106 states and 115 transitions. [2018-04-05 15:15:42,250 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-04-05 15:15:42,251 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 22 [2018-04-05 15:15:42,252 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-05 15:15:42,267 INFO L225 Difference]: With dead ends: 106 [2018-04-05 15:15:42,268 INFO L226 Difference]: Without dead ends: 54 [2018-04-05 15:15:42,276 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-04-05 15:15:42,306 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2018-04-05 15:15:42,336 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 54. [2018-04-05 15:15:42,340 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 54 states. [2018-04-05 15:15:42,343 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 56 transitions. [2018-04-05 15:15:42,346 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 56 transitions. Word has length 22 [2018-04-05 15:15:42,346 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-05 15:15:42,346 INFO L459 AbstractCegarLoop]: Abstraction has 54 states and 56 transitions. [2018-04-05 15:15:42,357 INFO L460 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-04-05 15:15:42,357 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 56 transitions. [2018-04-05 15:15:42,367 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2018-04-05 15:15:42,367 INFO L347 BasicCegarLoop]: Found error trace [2018-04-05 15:15:42,372 INFO L355 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] [2018-04-05 15:15:42,372 INFO L408 AbstractCegarLoop]: === Iteration 2 === [__U_MULTI_fbubblesort_unsafe_false_valid_deref_i__bubbleSortErr9RequiresViolation, __U_MULTI_fbubblesort_unsafe_false_valid_deref_i__bubbleSortErr7RequiresViolation, __U_MULTI_fbubblesort_unsafe_false_valid_deref_i__bubbleSortErr10RequiresViolation, __U_MULTI_fbubblesort_unsafe_false_valid_deref_i__bubbleSortErr2RequiresViolation, __U_MULTI_fbubblesort_unsafe_false_valid_deref_i__bubbleSortErr5RequiresViolation, __U_MULTI_fbubblesort_unsafe_false_valid_deref_i__bubbleSortErr3RequiresViolation, __U_MULTI_fbubblesort_unsafe_false_valid_deref_i__bubbleSortErr4RequiresViolation, __U_MULTI_fbubblesort_unsafe_false_valid_deref_i__bubbleSortErr11RequiresViolation, __U_MULTI_fbubblesort_unsafe_false_valid_deref_i__bubbleSortErr8RequiresViolation, __U_MULTI_fbubblesort_unsafe_false_valid_deref_i__bubbleSortErr1RequiresViolation, __U_MULTI_fbubblesort_unsafe_false_valid_deref_i__bubbleSortErr0RequiresViolation, __U_MULTI_fbubblesort_unsafe_false_valid_deref_i__bubbleSortErr6RequiresViolation, mainErr0EnsuresViolationMEMORY_LEAK]=== [2018-04-05 15:15:42,372 INFO L82 PathProgramCache]: Analyzing trace with hash 785091502, now seen corresponding path program 1 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-05 15:15:42,413 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-05 15:15:42,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-04-05 15:15:42,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-04-05 15:15:42,702 INFO L421 BasicCegarLoop]: Counterexample might be feasible [2018-04-05 15:15:42,784 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 05.04 03:15:42 BoogieIcfgContainer [2018-04-05 15:15:42,785 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-04-05 15:15:42,786 INFO L168 Benchmark]: Toolchain (without parser) took 3078.41 ms. Allocated memory was 303.6 MB in the beginning and 469.8 MB in the end (delta: 166.2 MB). Free memory was 247.2 MB in the beginning and 404.1 MB in the end (delta: -156.9 MB). Peak memory consumption was 9.3 MB. Max. memory is 5.3 GB. [2018-04-05 15:15:42,796 INFO L168 Benchmark]: CDTParser took 0.28 ms. Allocated memory is still 303.6 MB. Free memory is still 265.9 MB. There was no memory consumed. Max. memory is 5.3 GB. [2018-04-05 15:15:42,796 INFO L168 Benchmark]: CACSL2BoogieTranslator took 490.66 ms. Allocated memory is still 303.6 MB. Free memory was 246.2 MB in the beginning and 237.2 MB in the end (delta: 9.1 MB). Peak memory consumption was 9.1 MB. Max. memory is 5.3 GB. [2018-04-05 15:15:42,797 INFO L168 Benchmark]: Boogie Preprocessor took 65.20 ms. Allocated memory is still 303.6 MB. Free memory was 237.2 MB in the beginning and 235.2 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 5.3 GB. [2018-04-05 15:15:42,801 INFO L168 Benchmark]: RCFGBuilder took 1093.24 ms. Allocated memory was 303.6 MB in the beginning and 469.8 MB in the end (delta: 166.2 MB). Free memory was 235.2 MB in the beginning and 435.7 MB in the end (delta: -200.5 MB). Peak memory consumption was 26.6 MB. Max. memory is 5.3 GB. [2018-04-05 15:15:42,802 INFO L168 Benchmark]: TraceAbstraction took 1414.23 ms. Allocated memory is still 469.8 MB. Free memory was 435.7 MB in the beginning and 404.1 MB in the end (delta: 31.6 MB). Peak memory consumption was 31.6 MB. Max. memory is 5.3 GB. [2018-04-05 15:15:42,808 INFO L344 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28 ms. Allocated memory is still 303.6 MB. Free memory is still 265.9 MB. There was no memory consumed. Max. memory is 5.3 GB. * CACSL2BoogieTranslator took 490.66 ms. Allocated memory is still 303.6 MB. Free memory was 246.2 MB in the beginning and 237.2 MB in the end (delta: 9.1 MB). Peak memory consumption was 9.1 MB. Max. memory is 5.3 GB. * Boogie Preprocessor took 65.20 ms. Allocated memory is still 303.6 MB. Free memory was 237.2 MB in the beginning and 235.2 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 5.3 GB. * RCFGBuilder took 1093.24 ms. Allocated memory was 303.6 MB in the beginning and 469.8 MB in the end (delta: 166.2 MB). Free memory was 235.2 MB in the beginning and 435.7 MB in the end (delta: -200.5 MB). Peak memory consumption was 26.6 MB. Max. memory is 5.3 GB. * TraceAbstraction took 1414.23 ms. Allocated memory is still 469.8 MB. Free memory was 435.7 MB in the beginning and 404.1 MB in the end (delta: 31.6 MB). Peak memory consumption was 31.6 MB. Max. memory is 5.3 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 7]: pointer dereference may fail pointer dereference may fail We found a FailurePath: [L16] int* numbers; [L17] int array_size = __VERIFIER_nondet_int(); VAL [__VERIFIER_nondet_int()=2, array_size=2] [L18] CALL bubbleSort(numbers, array_size) VAL [\old(array_size)=2, numbers={0:7}] [L4] int i, j, temp; VAL [\old(array_size)=2, array_size=2, numbers={0:7}, numbers={0:7}] [L5] i = (array_size - 1) VAL [\old(array_size)=2, array_size=2, i=1, numbers={0:7}, numbers={0:7}] [L5] COND TRUE i >= 0 VAL [\old(array_size)=2, array_size=2, i=1, numbers={0:7}, numbers={0:7}] [L6] j = 1 VAL [\old(array_size)=2, array_size=2, i=1, j=1, numbers={0:7}, numbers={0:7}] [L6] COND TRUE j <= i VAL [\old(array_size)=2, array_size=2, i=1, j=1, numbers={0:7}, numbers={0:7}] [L7] FCALL numbers[j-1] - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 62 locations, 13 error locations. UNSAFE Result, 1.1s OverallTime, 2 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 63 SDtfs, 0 SDslu, 0 SDs, 0 SdLazy, 0 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 43 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=62occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 45 NumberOfCodeBlocks, 45 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 42 ConstructedInterpolants, 0 QuantifiedInterpolants, 882 SizeOfPredicates, 0 NumberOfNonLiveVariables, 54 ConjunctsInSsa, 1 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/bubblesort_unsafe_false-valid-deref.i_svcomp-DerefFreeMemtrack-32bit-Automizer_Fixed_noBitfields+AI_EQ_SS.epf_AutomizerC.xml/Csv-Benchmark-0-2018-04-05_15-15-42-836.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/bubblesort_unsafe_false-valid-deref.i_svcomp-DerefFreeMemtrack-32bit-Automizer_Fixed_noBitfields+AI_EQ_SS.epf_AutomizerC.xml/Csv-TraceAbstractionBenchmarks-0-2018-04-05_15-15-42-836.csv Received shutdown request...