java -Xmx6000000000 -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data ./data --generate-csv --csv-dir ../../../releaseScripts/default/UAutomizer-linux/csv -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/ai/eq-bench/svcomp-DerefFreeMemtrack-32bit-Automizer_Camel+AI_EQ_SS.epf -i ../../../trunk/examples/svcomp/array-memsafety/selectionsort_unsafe_false-valid-deref.i -------------------------------------------------------------------------------- This is Ultimate 0.1.23-d4a2356 [2018-03-23 11:42:05,613 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-03-23 11:42:05,614 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-03-23 11:42:05,630 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-03-23 11:42:05,630 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-03-23 11:42:05,631 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-03-23 11:42:05,632 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-03-23 11:42:05,633 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-03-23 11:42:05,635 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-03-23 11:42:05,635 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-03-23 11:42:05,636 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-03-23 11:42:05,637 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-03-23 11:42:05,638 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-03-23 11:42:05,639 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-03-23 11:42:05,640 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-03-23 11:42:05,643 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-03-23 11:42:05,645 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-03-23 11:42:05,647 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-03-23 11:42:05,648 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-03-23 11:42:05,649 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-03-23 11:42:05,651 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-03-23 11:42:05,652 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-03-23 11:42:05,652 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-03-23 11:42:05,653 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-03-23 11:42:05,654 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-03-23 11:42:05,655 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-03-23 11:42:05,655 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-03-23 11:42:05,656 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-03-23 11:42:05,656 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-03-23 11:42:05,657 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-03-23 11:42:05,657 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-03-23 11:42:05,658 INFO L98 SettingsManager]: Beginning loading settings from /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/ai/eq-bench/svcomp-DerefFreeMemtrack-32bit-Automizer_Camel+AI_EQ_SS.epf [2018-03-23 11:42:05,667 INFO L110 SettingsManager]: Loading preferences was successful [2018-03-23 11:42:05,667 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-03-23 11:42:05,668 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-03-23 11:42:05,668 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-03-23 11:42:05,668 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-03-23 11:42:05,668 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=VPDomain [2018-03-23 11:42:05,669 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-03-23 11:42:05,669 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-03-23 11:42:05,669 INFO L133 SettingsManager]: * sizeof long=4 [2018-03-23 11:42:05,670 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-03-23 11:42:05,670 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-03-23 11:42:05,670 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-03-23 11:42:05,670 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-03-23 11:42:05,670 INFO L133 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2018-03-23 11:42:05,671 INFO L133 SettingsManager]: * Bitprecise bitfields=true [2018-03-23 11:42:05,671 INFO L133 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2018-03-23 11:42:05,671 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-03-23 11:42:05,671 INFO L133 SettingsManager]: * sizeof long double=12 [2018-03-23 11:42:05,671 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-03-23 11:42:05,671 INFO L133 SettingsManager]: * Size of a code block=SingleStatement [2018-03-23 11:42:05,672 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-03-23 11:42:05,672 INFO L133 SettingsManager]: * Add additional assume for each assert=false [2018-03-23 11:42:05,672 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-03-23 11:42:05,672 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-03-23 11:42:05,672 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-03-23 11:42:05,673 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-03-23 11:42:05,673 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-03-23 11:42:05,673 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-03-23 11:42:05,673 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-03-23 11:42:05,673 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-03-23 11:42:05,674 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-03-23 11:42:05,674 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-03-23 11:42:05,675 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-03-23 11:42:05,675 INFO L133 SettingsManager]: * TransformationType=HEAP_SEPARATOR [2018-03-23 11:42:05,710 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-03-23 11:42:05,723 INFO L266 ainManager$Toolchain]: [Toolchain 1]: Parser(s) successfully (re)initialized [2018-03-23 11:42:05,727 INFO L222 ainManager$Toolchain]: [Toolchain 1]: Toolchain data selected. [2018-03-23 11:42:05,729 INFO L271 PluginConnector]: Initializing CDTParser... [2018-03-23 11:42:05,730 INFO L276 PluginConnector]: CDTParser initialized [2018-03-23 11:42:05,731 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/array-memsafety/selectionsort_unsafe_false-valid-deref.i [2018-03-23 11:42:06,057 INFO L228 CDTParser]: Created temporary CDT project at /storage/ultimate/releaseScripts/default/UAutomizer-linux/data/FLAGdfe697cae [2018-03-23 11:42:06,174 INFO L291 CDTParser]: IsIndexed: true [2018-03-23 11:42:06,174 INFO L292 CDTParser]: Found 1 translation units. [2018-03-23 11:42:06,175 INFO L171 CDTParser]: Scanning selectionsort_unsafe_false-valid-deref.i [2018-03-23 11:42:06,176 INFO L210 ultiparseSymbolTable]: Include resolver: [2018-03-23 11:42:06,176 INFO L215 ultiparseSymbolTable]: [2018-03-23 11:42:06,176 INFO L218 ultiparseSymbolTable]: Function table: [2018-03-23 11:42:06,176 INFO L221 ultiparseSymbolTable]: Function definition of null ('main') in selectionsort_unsafe_false-valid-deref.i [2018-03-23 11:42:06,177 INFO L221 ultiparseSymbolTable]: Function definition of __U_MULTI_fselectionsort_unsafe_false_valid_deref_i__SelectionSort ('SelectionSort') in selectionsort_unsafe_false-valid-deref.i [2018-03-23 11:42:06,177 INFO L227 ultiparseSymbolTable]: Global variable table: [2018-03-23 11:42:06,177 INFO L233 ultiparseSymbolTable]: [2018-03-23 11:42:06,208 INFO L334 CDTParser]: Deleted temporary CDT project at /storage/ultimate/releaseScripts/default/UAutomizer-linux/data/FLAGdfe697cae [2018-03-23 11:42:06,212 INFO L304 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-03-23 11:42:06,213 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-03-23 11:42:06,214 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-03-23 11:42:06,214 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-03-23 11:42:06,218 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-03-23 11:42:06,220 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.03 11:42:06" (1/1) ... [2018-03-23 11:42:06,222 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@761803cb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.03 11:42:06, skipping insertion in model container [2018-03-23 11:42:06,223 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.03 11:42:06" (1/1) ... [2018-03-23 11:42:06,238 INFO L167 Dispatcher]: Using SV-COMP mode [2018-03-23 11:42:06,249 INFO L167 Dispatcher]: Using SV-COMP mode [2018-03-23 11:42:06,387 INFO L175 PostProcessor]: Settings: Checked method=main [2018-03-23 11:42:06,411 INFO L175 PostProcessor]: Settings: Checked method=main [2018-03-23 11:42:06,414 INFO L100 SccComputation]: Graph consists of 0 InCaSumBalls and 9 non ball SCCs. Number of states in SCCs 9. [2018-03-23 11:42:06,423 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.03 11:42:06 WrapperNode [2018-03-23 11:42:06,423 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-03-23 11:42:06,424 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-03-23 11:42:06,424 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-03-23 11:42:06,424 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-03-23 11:42:06,436 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.03 11:42:06" (1/1) ... [2018-03-23 11:42:06,437 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.03 11:42:06" (1/1) ... [2018-03-23 11:42:06,444 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.03 11:42:06" (1/1) ... [2018-03-23 11:42:06,444 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.03 11:42:06" (1/1) ... [2018-03-23 11:42:06,447 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.03 11:42:06" (1/1) ... [2018-03-23 11:42:06,450 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.03 11:42:06" (1/1) ... [2018-03-23 11:42:06,451 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.03 11:42:06" (1/1) ... [2018-03-23 11:42:06,453 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-03-23 11:42:06,454 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-03-23 11:42:06,454 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-03-23 11:42:06,454 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-03-23 11:42:06,455 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.03 11:42:06" (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 [2018-03-23 11:42:06,500 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-03-23 11:42:06,501 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-03-23 11:42:06,501 INFO L136 BoogieDeclarations]: Found implementation of procedure __U_MULTI_fselectionsort_unsafe_false_valid_deref_i__SelectionSort [2018-03-23 11:42:06,501 INFO L136 BoogieDeclarations]: Found implementation of procedure main [2018-03-23 11:42:06,501 INFO L128 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2018-03-23 11:42:06,501 INFO L128 BoogieDeclarations]: Found specification of procedure __U_MULTI_fselectionsort_unsafe_false_valid_deref_i__SelectionSort [2018-03-23 11:42:06,501 INFO L128 BoogieDeclarations]: Found specification of procedure read~int [2018-03-23 11:42:06,502 INFO L128 BoogieDeclarations]: Found specification of procedure write~int [2018-03-23 11:42:06,502 INFO L128 BoogieDeclarations]: Found specification of procedure main [2018-03-23 11:42:06,502 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-03-23 11:42:06,502 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-03-23 11:42:06,502 INFO L128 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2018-03-23 11:42:06,502 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-03-23 11:42:06,814 INFO L259 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-03-23 11:42:06,814 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.03 11:42:06 BoogieIcfgContainer [2018-03-23 11:42:06,814 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-03-23 11:42:06,815 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-03-23 11:42:06,815 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-03-23 11:42:06,817 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-03-23 11:42:06,818 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.03 11:42:06" (1/3) ... [2018-03-23 11:42:06,818 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@342baf3c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.03 11:42:06, skipping insertion in model container [2018-03-23 11:42:06,818 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.03 11:42:06" (2/3) ... [2018-03-23 11:42:06,819 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@342baf3c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.03 11:42:06, skipping insertion in model container [2018-03-23 11:42:06,819 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.03 11:42:06" (3/3) ... [2018-03-23 11:42:06,820 INFO L107 eAbstractionObserver]: Analyzing ICFG selectionsort_unsafe_false-valid-deref.i [2018-03-23 11:42:06,827 INFO L131 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-03-23 11:42:06,834 INFO L143 ceAbstractionStarter]: Appying trace abstraction to program that has 13 error locations. [2018-03-23 11:42:06,869 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2018-03-23 11:42:06,869 INFO L369 AbstractCegarLoop]: Interprodecural is true [2018-03-23 11:42:06,870 INFO L370 AbstractCegarLoop]: Hoare is true [2018-03-23 11:42:06,870 INFO L371 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-03-23 11:42:06,870 INFO L372 AbstractCegarLoop]: Backedges is TWOTRACK [2018-03-23 11:42:06,870 INFO L373 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-03-23 11:42:06,870 INFO L374 AbstractCegarLoop]: Difference is false [2018-03-23 11:42:06,870 INFO L375 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-03-23 11:42:06,871 INFO L380 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-03-23 11:42:06,872 INFO L87 2NestedWordAutomaton]: Mode: main mode - execution starts in main procedure [2018-03-23 11:42:06,890 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states. [2018-03-23 11:42:06,895 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2018-03-23 11:42:06,895 INFO L345 BasicCegarLoop]: Found error trace [2018-03-23 11:42:06,896 INFO L353 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-03-23 11:42:06,896 INFO L408 AbstractCegarLoop]: === Iteration 1 === [mainErr0EnsuresViolationMEMORY_LEAK, __U_MULTI_fselectionsort_unsafe_false_valid_deref_i__SelectionSortErr8RequiresViolation, __U_MULTI_fselectionsort_unsafe_false_valid_deref_i__SelectionSortErr11RequiresViolation, __U_MULTI_fselectionsort_unsafe_false_valid_deref_i__SelectionSortErr2RequiresViolation, __U_MULTI_fselectionsort_unsafe_false_valid_deref_i__SelectionSortErr3RequiresViolation, __U_MULTI_fselectionsort_unsafe_false_valid_deref_i__SelectionSortErr4RequiresViolation, __U_MULTI_fselectionsort_unsafe_false_valid_deref_i__SelectionSortErr9RequiresViolation, __U_MULTI_fselectionsort_unsafe_false_valid_deref_i__SelectionSortErr10RequiresViolation, __U_MULTI_fselectionsort_unsafe_false_valid_deref_i__SelectionSortErr7RequiresViolation, __U_MULTI_fselectionsort_unsafe_false_valid_deref_i__SelectionSortErr5RequiresViolation, __U_MULTI_fselectionsort_unsafe_false_valid_deref_i__SelectionSortErr1RequiresViolation, __U_MULTI_fselectionsort_unsafe_false_valid_deref_i__SelectionSortErr0RequiresViolation, __U_MULTI_fselectionsort_unsafe_false_valid_deref_i__SelectionSortErr6RequiresViolation]=== [2018-03-23 11:42:06,900 INFO L82 PathProgramCache]: Analyzing trace with hash -1266473235, now seen corresponding path program 1 times [2018-03-23 11:42:06,901 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-03-23 11:42:06,902 INFO L68 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-03-23 11:42:06,940 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-03-23 11:42:06,940 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-03-23 11:42:06,940 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-03-23 11:42:06,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-23 11:42:06,991 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-03-23 11:42:07,021 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-23 11:42:07,024 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-03-23 11:42:07,024 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-03-23 11:42:07,026 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-03-23 11:42:07,036 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-03-23 11:42:07,037 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-03-23 11:42:07,039 INFO L87 Difference]: Start difference. First operand 65 states. Second operand 2 states. [2018-03-23 11:42:07,065 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-03-23 11:42:07,065 INFO L93 Difference]: Finished difference Result 114 states and 123 transitions. [2018-03-23 11:42:07,065 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-03-23 11:42:07,067 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 20 [2018-03-23 11:42:07,067 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-03-23 11:42:07,075 INFO L225 Difference]: With dead ends: 114 [2018-03-23 11:42:07,075 INFO L226 Difference]: Without dead ends: 57 [2018-03-23 11:42:07,079 INFO L568 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-03-23 11:42:07,092 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57 states. [2018-03-23 11:42:07,105 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57 to 57. [2018-03-23 11:42:07,106 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 57 states. [2018-03-23 11:42:07,108 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 59 transitions. [2018-03-23 11:42:07,109 INFO L78 Accepts]: Start accepts. Automaton has 57 states and 59 transitions. Word has length 20 [2018-03-23 11:42:07,109 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-03-23 11:42:07,109 INFO L459 AbstractCegarLoop]: Abstraction has 57 states and 59 transitions. [2018-03-23 11:42:07,109 INFO L460 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-03-23 11:42:07,109 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 59 transitions. [2018-03-23 11:42:07,110 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2018-03-23 11:42:07,110 INFO L345 BasicCegarLoop]: Found error trace [2018-03-23 11:42:07,110 INFO L353 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] [2018-03-23 11:42:07,110 INFO L408 AbstractCegarLoop]: === Iteration 2 === [mainErr0EnsuresViolationMEMORY_LEAK, __U_MULTI_fselectionsort_unsafe_false_valid_deref_i__SelectionSortErr8RequiresViolation, __U_MULTI_fselectionsort_unsafe_false_valid_deref_i__SelectionSortErr11RequiresViolation, __U_MULTI_fselectionsort_unsafe_false_valid_deref_i__SelectionSortErr2RequiresViolation, __U_MULTI_fselectionsort_unsafe_false_valid_deref_i__SelectionSortErr3RequiresViolation, __U_MULTI_fselectionsort_unsafe_false_valid_deref_i__SelectionSortErr4RequiresViolation, __U_MULTI_fselectionsort_unsafe_false_valid_deref_i__SelectionSortErr9RequiresViolation, __U_MULTI_fselectionsort_unsafe_false_valid_deref_i__SelectionSortErr10RequiresViolation, __U_MULTI_fselectionsort_unsafe_false_valid_deref_i__SelectionSortErr7RequiresViolation, __U_MULTI_fselectionsort_unsafe_false_valid_deref_i__SelectionSortErr5RequiresViolation, __U_MULTI_fselectionsort_unsafe_false_valid_deref_i__SelectionSortErr1RequiresViolation, __U_MULTI_fselectionsort_unsafe_false_valid_deref_i__SelectionSortErr0RequiresViolation, __U_MULTI_fselectionsort_unsafe_false_valid_deref_i__SelectionSortErr6RequiresViolation]=== [2018-03-23 11:42:07,110 INFO L82 PathProgramCache]: Analyzing trace with hash 1945419733, now seen corresponding path program 1 times [2018-03-23 11:42:07,111 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-03-23 11:42:07,111 INFO L68 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-03-23 11:42:07,112 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-03-23 11:42:07,112 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-03-23 11:42:07,112 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-03-23 11:42:07,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-23 11:42:07,130 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-03-23 11:42:07,214 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-23 11:42:07,214 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-03-23 11:42:07,214 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-03-23 11:42:07,216 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-03-23 11:42:07,216 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-03-23 11:42:07,216 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-03-23 11:42:07,217 INFO L87 Difference]: Start difference. First operand 57 states and 59 transitions. Second operand 4 states. [2018-03-23 11:42:07,303 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-03-23 11:42:07,303 INFO L93 Difference]: Finished difference Result 101 states and 106 transitions. [2018-03-23 11:42:07,304 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-03-23 11:42:07,304 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 25 [2018-03-23 11:42:07,304 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-03-23 11:42:07,305 INFO L225 Difference]: With dead ends: 101 [2018-03-23 11:42:07,305 INFO L226 Difference]: Without dead ends: 59 [2018-03-23 11:42:07,306 INFO L568 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-03-23 11:42:07,307 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59 states. [2018-03-23 11:42:07,312 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59 to 59. [2018-03-23 11:42:07,312 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 59 states. [2018-03-23 11:42:07,314 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 61 transitions. [2018-03-23 11:42:07,314 INFO L78 Accepts]: Start accepts. Automaton has 59 states and 61 transitions. Word has length 25 [2018-03-23 11:42:07,315 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-03-23 11:42:07,315 INFO L459 AbstractCegarLoop]: Abstraction has 59 states and 61 transitions. [2018-03-23 11:42:07,315 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-03-23 11:42:07,315 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 61 transitions. [2018-03-23 11:42:07,316 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2018-03-23 11:42:07,316 INFO L345 BasicCegarLoop]: Found error trace [2018-03-23 11:42:07,316 INFO L353 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] [2018-03-23 11:42:07,316 INFO L408 AbstractCegarLoop]: === Iteration 3 === [mainErr0EnsuresViolationMEMORY_LEAK, __U_MULTI_fselectionsort_unsafe_false_valid_deref_i__SelectionSortErr8RequiresViolation, __U_MULTI_fselectionsort_unsafe_false_valid_deref_i__SelectionSortErr11RequiresViolation, __U_MULTI_fselectionsort_unsafe_false_valid_deref_i__SelectionSortErr2RequiresViolation, __U_MULTI_fselectionsort_unsafe_false_valid_deref_i__SelectionSortErr3RequiresViolation, __U_MULTI_fselectionsort_unsafe_false_valid_deref_i__SelectionSortErr4RequiresViolation, __U_MULTI_fselectionsort_unsafe_false_valid_deref_i__SelectionSortErr9RequiresViolation, __U_MULTI_fselectionsort_unsafe_false_valid_deref_i__SelectionSortErr10RequiresViolation, __U_MULTI_fselectionsort_unsafe_false_valid_deref_i__SelectionSortErr7RequiresViolation, __U_MULTI_fselectionsort_unsafe_false_valid_deref_i__SelectionSortErr5RequiresViolation, __U_MULTI_fselectionsort_unsafe_false_valid_deref_i__SelectionSortErr1RequiresViolation, __U_MULTI_fselectionsort_unsafe_false_valid_deref_i__SelectionSortErr0RequiresViolation, __U_MULTI_fselectionsort_unsafe_false_valid_deref_i__SelectionSortErr6RequiresViolation]=== [2018-03-23 11:42:07,316 INFO L82 PathProgramCache]: Analyzing trace with hash 1945419772, now seen corresponding path program 1 times [2018-03-23 11:42:07,316 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-03-23 11:42:07,317 INFO L68 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-03-23 11:42:07,318 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-03-23 11:42:07,318 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-03-23 11:42:07,318 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-03-23 11:42:07,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-03-23 11:42:07,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-03-23 11:42:07,364 INFO L419 BasicCegarLoop]: Counterexample might be feasible [2018-03-23 11:42:07,391 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.03 11:42:07 BoogieIcfgContainer [2018-03-23 11:42:07,391 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-03-23 11:42:07,392 INFO L168 Benchmark]: Toolchain (without parser) took 1180.09 ms. Allocated memory was 304.1 MB in the beginning and 462.9 MB in the end (delta: 158.9 MB). Free memory was 249.4 MB in the beginning and 387.9 MB in the end (delta: -138.5 MB). Peak memory consumption was 20.4 MB. Max. memory is 5.3 GB. [2018-03-23 11:42:07,394 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 304.1 MB. Free memory is still 267.1 MB. There was no memory consumed. Max. memory is 5.3 GB. [2018-03-23 11:42:07,394 INFO L168 Benchmark]: CACSL2BoogieTranslator took 209.59 ms. Allocated memory is still 304.1 MB. Free memory was 249.4 MB in the beginning and 239.4 MB in the end (delta: 10.0 MB). Peak memory consumption was 10.0 MB. Max. memory is 5.3 GB. [2018-03-23 11:42:07,395 INFO L168 Benchmark]: Boogie Preprocessor took 29.20 ms. Allocated memory is still 304.1 MB. Free memory was 239.4 MB in the beginning and 237.4 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 5.3 GB. [2018-03-23 11:42:07,395 INFO L168 Benchmark]: RCFGBuilder took 361.00 ms. Allocated memory was 304.1 MB in the beginning and 462.9 MB in the end (delta: 158.9 MB). Free memory was 237.4 MB in the beginning and 429.3 MB in the end (delta: -191.9 MB). Peak memory consumption was 24.2 MB. Max. memory is 5.3 GB. [2018-03-23 11:42:07,396 INFO L168 Benchmark]: TraceAbstraction took 576.27 ms. Allocated memory is still 462.9 MB. Free memory was 427.4 MB in the beginning and 387.9 MB in the end (delta: 39.5 MB). Peak memory consumption was 39.5 MB. Max. memory is 5.3 GB. [2018-03-23 11:42:07,399 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 304.1 MB. Free memory is still 267.1 MB. There was no memory consumed. Max. memory is 5.3 GB. * CACSL2BoogieTranslator took 209.59 ms. Allocated memory is still 304.1 MB. Free memory was 249.4 MB in the beginning and 239.4 MB in the end (delta: 10.0 MB). Peak memory consumption was 10.0 MB. Max. memory is 5.3 GB. * Boogie Preprocessor took 29.20 ms. Allocated memory is still 304.1 MB. Free memory was 239.4 MB in the beginning and 237.4 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 5.3 GB. * RCFGBuilder took 361.00 ms. Allocated memory was 304.1 MB in the beginning and 462.9 MB in the end (delta: 158.9 MB). Free memory was 237.4 MB in the beginning and 429.3 MB in the end (delta: -191.9 MB). Peak memory consumption was 24.2 MB. Max. memory is 5.3 GB. * TraceAbstraction took 576.27 ms. Allocated memory is still 462.9 MB. Free memory was 427.4 MB in the beginning and 387.9 MB in the end (delta: 39.5 MB). Peak memory consumption was 39.5 MB. Max. memory is 5.3 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 11]: pointer dereference may fail pointer dereference may fail We found a FailurePath: [L20] int *a; [L21] int array_size = __VERIFIER_nondet_int(); VAL [__VERIFIER_nondet_int()=2, array_size=2] [L22] CALL SelectionSort(a, array_size) VAL [\old(array_size)=2, a={4:3}] [L4] int i; VAL [\old(array_size)=2, a={4:3}, a={4:3}, array_size=2] [L5] i = 0 VAL [\old(array_size)=2, a={4:3}, a={4:3}, array_size=2, i=0] [L5] COND TRUE i < array_size - 1 VAL [\old(array_size)=2, a={4:3}, a={4:3}, array_size=2, i=0] [L7] int j, min, temp; VAL [\old(array_size)=2, a={4:3}, a={4:3}, array_size=2, i=0] [L8] min = i VAL [\old(array_size)=2, a={4:3}, a={4:3}, array_size=2, i=0, min=0] [L9] j = i+1 VAL [\old(array_size)=2, a={4:3}, a={4:3}, array_size=2, i=0, j=1, min=0] [L9] COND TRUE j < array_size VAL [\old(array_size)=2, a={4:3}, a={4:3}, array_size=2, i=0, j=1, min=0] [L11] FCALL a[j] - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 65 locations, 13 error locations. UNSAFE Result, 0.5s OverallTime, 3 OverallIterations, 1 TraceHistogramMax, 0.1s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 110 SDtfs, 52 SDslu, 45 SDs, 0 SdLazy, 31 SolverSat, 2 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=65occurred 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, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 70 NumberOfCodeBlocks, 70 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 43 ConstructedInterpolants, 0 QuantifiedInterpolants, 1609 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 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/selectionsort_unsafe_false-valid-deref.i_svcomp-DerefFreeMemtrack-32bit-Automizer_Camel+AI_EQ_SS.epf_AutomizerC.xml/Csv-Benchmark-0-2018-03-23_11-42-07-409.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/selectionsort_unsafe_false-valid-deref.i_svcomp-DerefFreeMemtrack-32bit-Automizer_Camel+AI_EQ_SS.epf_AutomizerC.xml/Csv-TraceAbstractionBenchmarks-0-2018-03-23_11-42-07-409.csv Received shutdown request...