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 --cacsl2boogietranslator.bitprecise.bitfields false -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/cade18-smtinterpol/svcomp-DerefFreeMemtrack-32bit-Automizer_SmtInterpol_NoArray.epf -i ../../../trunk/examples/svcomp/array-memsafety/bubblesort_unsafe_false-valid-deref.i -------------------------------------------------------------------------------- This is Ultimate 0.1.23-408c70d-m [2018-04-13 03:39:53,301 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-04-13 03:39:53,302 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-04-13 03:39:53,314 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-04-13 03:39:53,314 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-04-13 03:39:53,315 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-04-13 03:39:53,315 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-04-13 03:39:53,317 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-04-13 03:39:53,318 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-04-13 03:39:53,319 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-04-13 03:39:53,320 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-04-13 03:39:53,320 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-04-13 03:39:53,321 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-04-13 03:39:53,322 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-04-13 03:39:53,322 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-04-13 03:39:53,324 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-04-13 03:39:53,325 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-04-13 03:39:53,327 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-04-13 03:39:53,328 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-04-13 03:39:53,329 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-04-13 03:39:53,330 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-04-13 03:39:53,335 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-04-13 03:39:53,336 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-04-13 03:39:53,336 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 [2018-04-13 03:39:53,361 INFO L110 SettingsManager]: Loading preferences was successful [2018-04-13 03:39:53,361 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-04-13 03:39:53,362 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-04-13 03:39:53,362 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-04-13 03:39:53,363 INFO L133 SettingsManager]: * Use SBE=true [2018-04-13 03:39:53,363 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-04-13 03:39:53,363 INFO L133 SettingsManager]: * sizeof long=4 [2018-04-13 03:39:53,363 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-04-13 03:39:53,363 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-04-13 03:39:53,364 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-04-13 03:39:53,364 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-04-13 03:39:53,364 INFO L133 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2018-04-13 03:39:53,364 INFO L133 SettingsManager]: * Bitprecise bitfields=true [2018-04-13 03:39:53,364 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-04-13 03:39:53,364 INFO L133 SettingsManager]: * sizeof long double=12 [2018-04-13 03:39:53,364 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-04-13 03:39:53,364 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-04-13 03:39:53,365 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-04-13 03:39:53,365 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-04-13 03:39:53,365 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-04-13 03:39:53,365 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-04-13 03:39:53,365 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-04-13 03:39:53,365 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-04-13 03:39:53,365 INFO L133 SettingsManager]: * Trace refinement strategy=SMTINTERPOL Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Bitprecise bitfields -> false [2018-04-13 03:39:53,392 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-04-13 03:39:53,400 INFO L266 ainManager$Toolchain]: [Toolchain 1]: Parser(s) successfully (re)initialized [2018-04-13 03:39:53,402 INFO L222 ainManager$Toolchain]: [Toolchain 1]: Toolchain data selected. [2018-04-13 03:39:53,403 INFO L271 PluginConnector]: Initializing CDTParser... [2018-04-13 03:39:53,403 INFO L276 PluginConnector]: CDTParser initialized [2018-04-13 03:39:53,404 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/array-memsafety/bubblesort_unsafe_false-valid-deref.i [2018-04-13 03:39:53,759 INFO L225 CDTParser]: Created temporary CDT project at /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/data/FLAGae0c4ca5f [2018-04-13 03:39:53,832 INFO L287 CDTParser]: IsIndexed: true [2018-04-13 03:39:53,833 INFO L288 CDTParser]: Found 1 translation units. [2018-04-13 03:39:53,833 INFO L168 CDTParser]: Scanning bubblesort_unsafe_false-valid-deref.i [2018-04-13 03:39:53,834 INFO L210 ultiparseSymbolTable]: Include resolver: [2018-04-13 03:39:53,834 INFO L215 ultiparseSymbolTable]: [2018-04-13 03:39:53,834 INFO L218 ultiparseSymbolTable]: Function table: [2018-04-13 03:39:53,834 INFO L221 ultiparseSymbolTable]: Function definition of null ('main') in bubblesort_unsafe_false-valid-deref.i [2018-04-13 03:39:53,834 INFO L221 ultiparseSymbolTable]: Function definition of __U_MULTI_fbubblesort_unsafe_false_valid_deref_i__bubbleSort ('bubbleSort') in bubblesort_unsafe_false-valid-deref.i [2018-04-13 03:39:53,834 INFO L227 ultiparseSymbolTable]: Global variable table: [2018-04-13 03:39:53,834 INFO L233 ultiparseSymbolTable]: [2018-04-13 03:39:53,846 INFO L330 CDTParser]: Deleted temporary CDT project at /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/data/FLAGae0c4ca5f [2018-04-13 03:39:53,849 INFO L304 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-04-13 03:39:53,850 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-04-13 03:39:53,850 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-04-13 03:39:53,850 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-04-13 03:39:53,854 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-04-13 03:39:53,854 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.04 03:39:53" (1/1) ... [2018-04-13 03:39:53,856 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3c6e4317 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.04 03:39:53, skipping insertion in model container [2018-04-13 03:39:53,856 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.04 03:39:53" (1/1) ... [2018-04-13 03:39:53,868 INFO L167 Dispatcher]: Using SV-COMP mode [2018-04-13 03:39:53,876 INFO L167 Dispatcher]: Using SV-COMP mode [2018-04-13 03:39:53,967 INFO L175 PostProcessor]: Settings: Checked method=main [2018-04-13 03:39:53,984 INFO L175 PostProcessor]: Settings: Checked method=main [2018-04-13 03:39:53,988 INFO L100 SccComputation]: Graph consists of 0 InCaSumBalls and 9 non ball SCCs. Number of states in SCCs 9. [2018-04-13 03:39:53,993 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.04 03:39:53 WrapperNode [2018-04-13 03:39:53,993 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-04-13 03:39:53,993 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-04-13 03:39:53,993 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-04-13 03:39:53,993 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-04-13 03:39:54,000 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.04 03:39:53" (1/1) ... [2018-04-13 03:39:54,001 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.04 03:39:53" (1/1) ... [2018-04-13 03:39:54,008 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.04 03:39:53" (1/1) ... [2018-04-13 03:39:54,008 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.04 03:39:53" (1/1) ... [2018-04-13 03:39:54,012 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.04 03:39:53" (1/1) ... [2018-04-13 03:39:54,016 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.04 03:39:53" (1/1) ... [2018-04-13 03:39:54,017 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.04 03:39:53" (1/1) ... [2018-04-13 03:39:54,019 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-04-13 03:39:54,019 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-04-13 03:39:54,019 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-04-13 03:39:54,019 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-04-13 03:39:54,020 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.04 03:39:53" (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 [2018-04-13 03:39:54,052 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-04-13 03:39:54,053 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-04-13 03:39:54,053 INFO L136 BoogieDeclarations]: Found implementation of procedure __U_MULTI_fbubblesort_unsafe_false_valid_deref_i__bubbleSort [2018-04-13 03:39:54,053 INFO L136 BoogieDeclarations]: Found implementation of procedure main [2018-04-13 03:39:54,053 INFO L128 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2018-04-13 03:39:54,053 INFO L128 BoogieDeclarations]: Found specification of procedure __U_MULTI_fbubblesort_unsafe_false_valid_deref_i__bubbleSort [2018-04-13 03:39:54,053 INFO L128 BoogieDeclarations]: Found specification of procedure read~int [2018-04-13 03:39:54,053 INFO L128 BoogieDeclarations]: Found specification of procedure write~int [2018-04-13 03:39:54,053 INFO L128 BoogieDeclarations]: Found specification of procedure main [2018-04-13 03:39:54,053 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-04-13 03:39:54,053 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-04-13 03:39:54,053 INFO L128 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2018-04-13 03:39:54,054 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-04-13 03:39:54,260 INFO L259 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-04-13 03:39:54,261 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.04 03:39:54 BoogieIcfgContainer [2018-04-13 03:39:54,261 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-04-13 03:39:54,261 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-04-13 03:39:54,261 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-04-13 03:39:54,263 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-04-13 03:39:54,264 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.04 03:39:53" (1/3) ... [2018-04-13 03:39:54,264 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4ce715c9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.04 03:39:54, skipping insertion in model container [2018-04-13 03:39:54,264 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.04 03:39:53" (2/3) ... [2018-04-13 03:39:54,264 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4ce715c9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.04 03:39:54, skipping insertion in model container [2018-04-13 03:39:54,264 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.04 03:39:54" (3/3) ... [2018-04-13 03:39:54,265 INFO L107 eAbstractionObserver]: Analyzing ICFG bubblesort_unsafe_false-valid-deref.i [2018-04-13 03:39:54,272 INFO L131 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-04-13 03:39:54,277 INFO L143 ceAbstractionStarter]: Appying trace abstraction to program that has 13 error locations. [2018-04-13 03:39:54,304 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2018-04-13 03:39:54,305 INFO L369 AbstractCegarLoop]: Interprodecural is true [2018-04-13 03:39:54,305 INFO L370 AbstractCegarLoop]: Hoare is false [2018-04-13 03:39:54,305 INFO L371 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-04-13 03:39:54,306 INFO L372 AbstractCegarLoop]: Backedges is TWOTRACK [2018-04-13 03:39:54,306 INFO L373 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-04-13 03:39:54,306 INFO L374 AbstractCegarLoop]: Difference is false [2018-04-13 03:39:54,306 INFO L375 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-04-13 03:39:54,306 INFO L380 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-04-13 03:39:54,307 INFO L87 2NestedWordAutomaton]: Mode: main mode - execution starts in main procedure [2018-04-13 03:39:54,318 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states. [2018-04-13 03:39:54,325 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2018-04-13 03:39:54,325 INFO L347 BasicCegarLoop]: Found error trace [2018-04-13 03:39:54,326 INFO L355 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-13 03:39:54,326 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]=== [2018-04-13 03:39:54,330 INFO L82 PathProgramCache]: Analyzing trace with hash 1618604079, now seen corresponding path program 1 times [2018-04-13 03:39:54,332 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-04-13 03:39:54,332 INFO L68 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-04-13 03:39:54,364 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-13 03:39:54,364 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-13 03:39:54,364 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-13 03:39:54,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 03:39:54,399 WARN L250 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-13 03:39:54,416 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 03:39:54,418 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-04-13 03:39:54,418 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-04-13 03:39:54,419 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-04-13 03:39:54,430 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-04-13 03:39:54,431 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-04-13 03:39:54,432 INFO L87 Difference]: Start difference. First operand 43 states. Second operand 2 states. [2018-04-13 03:39:54,448 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-13 03:39:54,448 INFO L93 Difference]: Finished difference Result 42 states and 44 transitions. [2018-04-13 03:39:54,448 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-04-13 03:39:54,449 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 13 [2018-04-13 03:39:54,450 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-13 03:39:54,457 INFO L225 Difference]: With dead ends: 42 [2018-04-13 03:39:54,458 INFO L226 Difference]: Without dead ends: 35 [2018-04-13 03:39:54,459 INFO L567 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 [2018-04-13 03:39:54,474 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2018-04-13 03:39:54,485 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 35. [2018-04-13 03:39:54,486 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35 states. [2018-04-13 03:39:54,487 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 37 transitions. [2018-04-13 03:39:54,488 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 37 transitions. Word has length 13 [2018-04-13 03:39:54,488 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-13 03:39:54,488 INFO L459 AbstractCegarLoop]: Abstraction has 35 states and 37 transitions. [2018-04-13 03:39:54,488 INFO L460 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-04-13 03:39:54,488 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 37 transitions. [2018-04-13 03:39:54,488 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2018-04-13 03:39:54,489 INFO L347 BasicCegarLoop]: Found error trace [2018-04-13 03:39:54,489 INFO L355 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-13 03:39:54,489 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]=== [2018-04-13 03:39:54,489 INFO L82 PathProgramCache]: Analyzing trace with hash 1573832596, now seen corresponding path program 1 times [2018-04-13 03:39:54,489 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-04-13 03:39:54,489 INFO L68 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-04-13 03:39:54,490 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-13 03:39:54,490 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-13 03:39:54,490 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-13 03:39:54,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-04-13 03:39:54,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-04-13 03:39:54,527 INFO L421 BasicCegarLoop]: Counterexample might be feasible [2018-04-13 03:39:54,544 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.04 03:39:54 BoogieIcfgContainer [2018-04-13 03:39:54,544 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-04-13 03:39:54,544 INFO L168 Benchmark]: Toolchain (without parser) took 695.37 ms. Allocated memory was 390.6 MB in the beginning and 589.8 MB in the end (delta: 199.2 MB). Free memory was 330.1 MB in the beginning and 526.6 MB in the end (delta: -196.5 MB). Peak memory consumption was 2.7 MB. Max. memory is 5.3 GB. [2018-04-13 03:39:54,545 INFO L168 Benchmark]: CDTParser took 0.10 ms. Allocated memory is still 390.6 MB. Free memory is still 351.0 MB. There was no memory consumed. Max. memory is 5.3 GB. [2018-04-13 03:39:54,546 INFO L168 Benchmark]: CACSL2BoogieTranslator took 142.98 ms. Allocated memory is still 390.6 MB. Free memory was 330.1 MB in the beginning and 320.6 MB in the end (delta: 9.5 MB). Peak memory consumption was 9.5 MB. Max. memory is 5.3 GB. [2018-04-13 03:39:54,546 INFO L168 Benchmark]: Boogie Preprocessor took 25.68 ms. Allocated memory is still 390.6 MB. Free memory was 320.6 MB in the beginning and 319.3 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 5.3 GB. [2018-04-13 03:39:54,547 INFO L168 Benchmark]: RCFGBuilder took 241.79 ms. Allocated memory was 390.6 MB in the beginning and 589.8 MB in the end (delta: 199.2 MB). Free memory was 319.3 MB in the beginning and 553.4 MB in the end (delta: -234.1 MB). Peak memory consumption was 26.5 MB. Max. memory is 5.3 GB. [2018-04-13 03:39:54,547 INFO L168 Benchmark]: TraceAbstraction took 282.54 ms. Allocated memory is still 589.8 MB. Free memory was 553.4 MB in the beginning and 526.6 MB in the end (delta: 26.8 MB). Peak memory consumption was 26.8 MB. Max. memory is 5.3 GB. [2018-04-13 03:39:54,549 INFO L344 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10 ms. Allocated memory is still 390.6 MB. Free memory is still 351.0 MB. There was no memory consumed. Max. memory is 5.3 GB. * CACSL2BoogieTranslator took 142.98 ms. Allocated memory is still 390.6 MB. Free memory was 330.1 MB in the beginning and 320.6 MB in the end (delta: 9.5 MB). Peak memory consumption was 9.5 MB. Max. memory is 5.3 GB. * Boogie Preprocessor took 25.68 ms. Allocated memory is still 390.6 MB. Free memory was 320.6 MB in the beginning and 319.3 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 5.3 GB. * RCFGBuilder took 241.79 ms. Allocated memory was 390.6 MB in the beginning and 589.8 MB in the end (delta: 199.2 MB). Free memory was 319.3 MB in the beginning and 553.4 MB in the end (delta: -234.1 MB). Peak memory consumption was 26.5 MB. Max. memory is 5.3 GB. * TraceAbstraction took 282.54 ms. Allocated memory is still 589.8 MB. Free memory was 553.4 MB in the beginning and 526.6 MB in the end (delta: 26.8 MB). Peak memory consumption was 26.8 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(); [L18] CALL bubbleSort(numbers, array_size) VAL [\old(array_size)=2, numbers={4:3}] [L4] int i, j, temp; [L5] i = (array_size - 1) VAL [\old(array_size)=2, array_size=2, i=1, numbers={4:3}, numbers={4:3}] [L5] COND TRUE i >= 0 [L6] j = 1 VAL [\old(array_size)=2, array_size=2, i=1, j=1, numbers={4:3}, numbers={4:3}] [L6] COND TRUE j <= i VAL [\old(array_size)=2, array_size=2, i=1, j=1, numbers={4:3}, numbers={4:3}] [L7] FCALL numbers[j-1] - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 43 locations, 13 error locations. UNSAFE Result, 0.2s OverallTime, 2 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 44 SDtfs, 0 SDslu, 0 SDs, 0 SdLazy, 0 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=43occurred 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, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 26 NumberOfCodeBlocks, 26 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 12 ConstructedInterpolants, 0 QuantifiedInterpolants, 144 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 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 /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/bubblesort_unsafe_false-valid-deref.i_svcomp-DerefFreeMemtrack-32bit-Automizer_SmtInterpol_NoArray.epf_AutomizerC.xml/Csv-Benchmark-0-2018-04-13_03-39-54-555.csv Written .csv to /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/bubblesort_unsafe_false-valid-deref.i_svcomp-DerefFreeMemtrack-32bit-Automizer_SmtInterpol_NoArray.epf_AutomizerC.xml/Csv-TraceAbstractionBenchmarks-0-2018-04-13_03-39-54-555.csv Received shutdown request...