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.epf -i ../../../trunk/examples/svcomp/array-memsafety/bubblesort_unsafe_false-valid-deref.i -------------------------------------------------------------------------------- This is Ultimate 0.1.23-6b94a2f [2018-01-24 11:38:42,248 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-01-24 11:38:42,249 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-01-24 11:38:42,262 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-01-24 11:38:42,262 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-01-24 11:38:42,263 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-01-24 11:38:42,264 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-01-24 11:38:42,266 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-01-24 11:38:42,268 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-01-24 11:38:42,269 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-01-24 11:38:42,270 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-01-24 11:38:42,270 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-01-24 11:38:42,272 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-01-24 11:38:42,273 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-01-24 11:38:42,274 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-01-24 11:38:42,276 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-01-24 11:38:42,279 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-01-24 11:38:42,281 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-01-24 11:38:42,282 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-01-24 11:38:42,283 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-01-24 11:38:42,285 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-01-24 11:38:42,286 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-01-24 11:38:42,286 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-01-24 11:38:42,287 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-01-24 11:38:42,288 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-01-24 11:38:42,289 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-01-24 11:38:42,289 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-01-24 11:38:42,290 INFO L177 SettingsManager]: PEA to Boogie provides no preferences, ignoring... [2018-01-24 11:38:42,290 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-01-24 11:38:42,290 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-01-24 11:38:42,291 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-01-24 11:38:42,291 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.epf [2018-01-24 11:38:42,301 INFO L110 SettingsManager]: Loading preferences was successful [2018-01-24 11:38:42,302 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-01-24 11:38:42,303 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-01-24 11:38:42,303 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-01-24 11:38:42,303 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-01-24 11:38:42,303 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=VPDomain [2018-01-24 11:38:42,304 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-01-24 11:38:42,304 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-01-24 11:38:42,304 INFO L133 SettingsManager]: * sizeof long=4 [2018-01-24 11:38:42,305 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-01-24 11:38:42,305 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-01-24 11:38:42,305 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-01-24 11:38:42,305 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-01-24 11:38:42,305 INFO L133 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2018-01-24 11:38:42,306 INFO L133 SettingsManager]: * Bitprecise bitfields=true [2018-01-24 11:38:42,306 INFO L133 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2018-01-24 11:38:42,306 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-01-24 11:38:42,306 INFO L133 SettingsManager]: * sizeof long double=12 [2018-01-24 11:38:42,307 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-01-24 11:38:42,307 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-01-24 11:38:42,307 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-01-24 11:38:42,307 INFO L133 SettingsManager]: * Add additional assume for each assert=false [2018-01-24 11:38:42,307 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-01-24 11:38:42,308 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-01-24 11:38:42,308 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-01-24 11:38:42,308 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-01-24 11:38:42,308 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-01-24 11:38:42,308 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-01-24 11:38:42,309 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-01-24 11:38:42,309 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-01-24 11:38:42,309 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-01-24 11:38:42,309 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-01-24 11:38:42,310 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-01-24 11:38:42,310 INFO L133 SettingsManager]: * TransformationType=HEAP_SEPARATOR [2018-01-24 11:38:42,346 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-01-24 11:38:42,356 INFO L266 ainManager$Toolchain]: [Toolchain 1]: Parser(s) successfully initialized [2018-01-24 11:38:42,359 INFO L222 ainManager$Toolchain]: [Toolchain 1]: Toolchain data selected. [2018-01-24 11:38:42,360 INFO L271 PluginConnector]: Initializing CDTParser... [2018-01-24 11:38:42,361 INFO L276 PluginConnector]: CDTParser initialized [2018-01-24 11:38:42,361 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/array-memsafety/bubblesort_unsafe_false-valid-deref.i [2018-01-24 11:38:42,463 INFO L304 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-01-24 11:38:42,470 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-01-24 11:38:42,471 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-01-24 11:38:42,471 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-01-24 11:38:42,479 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-01-24 11:38:42,480 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.01 11:38:42" (1/1) ... [2018-01-24 11:38:42,483 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@9337ac2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 11:38:42, skipping insertion in model container [2018-01-24 11:38:42,483 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.01 11:38:42" (1/1) ... [2018-01-24 11:38:42,500 INFO L153 Dispatcher]: Using SV-COMP mode [2018-01-24 11:38:42,519 INFO L153 Dispatcher]: Using SV-COMP mode [2018-01-24 11:38:42,642 INFO L450 PostProcessor]: Settings: Checked method=main [2018-01-24 11:38:42,658 INFO L450 PostProcessor]: Settings: Checked method=main [2018-01-24 11:38:42,663 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 11:38:42 WrapperNode [2018-01-24 11:38:42,664 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-01-24 11:38:42,665 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-01-24 11:38:42,665 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-01-24 11:38:42,665 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-01-24 11:38:42,677 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 11:38:42" (1/1) ... [2018-01-24 11:38:42,678 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 11:38:42" (1/1) ... [2018-01-24 11:38:42,688 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 11:38:42" (1/1) ... [2018-01-24 11:38:42,688 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 11:38:42" (1/1) ... [2018-01-24 11:38:42,690 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 11:38:42" (1/1) ... [2018-01-24 11:38:42,693 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 11:38:42" (1/1) ... [2018-01-24 11:38:42,694 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 11:38:42" (1/1) ... [2018-01-24 11:38:42,695 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-01-24 11:38:42,696 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-01-24 11:38:42,696 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-01-24 11:38:42,696 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-01-24 11:38:42,697 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 11:38:42" (1/1) ... No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-01-24 11:38:42,747 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-01-24 11:38:42,747 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-01-24 11:38:42,747 INFO L136 BoogieDeclarations]: Found implementation of procedure bubbleSort [2018-01-24 11:38:42,748 INFO L136 BoogieDeclarations]: Found implementation of procedure main [2018-01-24 11:38:42,748 INFO L128 BoogieDeclarations]: Found specification of procedure write~int [2018-01-24 11:38:42,748 INFO L128 BoogieDeclarations]: Found specification of procedure read~int [2018-01-24 11:38:42,748 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.free [2018-01-24 11:38:42,748 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-01-24 11:38:42,748 INFO L128 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2018-01-24 11:38:42,748 INFO L128 BoogieDeclarations]: Found specification of procedure bubbleSort [2018-01-24 11:38:42,748 INFO L128 BoogieDeclarations]: Found specification of procedure main [2018-01-24 11:38:42,748 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-01-24 11:38:42,749 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-01-24 11:38:42,943 INFO L257 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-01-24 11:38:42,944 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.01 11:38:42 BoogieIcfgContainer [2018-01-24 11:38:42,944 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-01-24 11:38:42,945 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-01-24 11:38:42,945 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-01-24 11:38:42,947 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-01-24 11:38:42,948 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.01 11:38:42" (1/3) ... [2018-01-24 11:38:42,949 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3373a04e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.01 11:38:42, skipping insertion in model container [2018-01-24 11:38:42,949 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 11:38:42" (2/3) ... [2018-01-24 11:38:42,949 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3373a04e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.01 11:38:42, skipping insertion in model container [2018-01-24 11:38:42,949 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.01 11:38:42" (3/3) ... [2018-01-24 11:38:42,951 INFO L105 eAbstractionObserver]: Analyzing ICFG bubblesort_unsafe_false-valid-deref.i [2018-01-24 11:38:42,961 INFO L130 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-01-24 11:38:42,969 INFO L142 ceAbstractionStarter]: Appying trace abstraction to program that has 13 error locations. [2018-01-24 11:38:43,002 INFO L322 AbstractCegarLoop]: Interprodecural is true [2018-01-24 11:38:43,003 INFO L323 AbstractCegarLoop]: Hoare is true [2018-01-24 11:38:43,003 INFO L324 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-01-24 11:38:43,003 INFO L325 AbstractCegarLoop]: Backedges is TWOTRACK [2018-01-24 11:38:43,003 INFO L326 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-01-24 11:38:43,004 INFO L327 AbstractCegarLoop]: Difference is false [2018-01-24 11:38:43,004 INFO L328 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-01-24 11:38:43,004 INFO L333 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-01-24 11:38:43,004 INFO L87 2NestedWordAutomaton]: Mode: main mode - execution starts in main procedure [2018-01-24 11:38:43,022 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states. [2018-01-24 11:38:43,027 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2018-01-24 11:38:43,027 INFO L314 BasicCegarLoop]: Found error trace [2018-01-24 11:38:43,029 INFO L322 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-24 11:38:43,029 INFO L371 AbstractCegarLoop]: === Iteration 1 === [bubbleSortErr7RequiresViolation, bubbleSortErr11RequiresViolation, bubbleSortErr0RequiresViolation, bubbleSortErr3RequiresViolation, bubbleSortErr9RequiresViolation, bubbleSortErr1RequiresViolation, bubbleSortErr2RequiresViolation, bubbleSortErr8RequiresViolation, bubbleSortErr6RequiresViolation, bubbleSortErr10RequiresViolation, bubbleSortErr4RequiresViolation, bubbleSortErr5RequiresViolation, mainErr0EnsuresViolation]=== [2018-01-24 11:38:43,033 INFO L82 PathProgramCache]: Analyzing trace with hash 1618604079, now seen corresponding path program 1 times [2018-01-24 11:38:43,035 INFO L209 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-01-24 11:38:43,036 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-01-24 11:38:43,076 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 11:38:43,077 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-24 11:38:43,077 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 11:38:43,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-24 11:38:43,128 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-24 11:38:43,157 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-24 11:38:43,159 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-24 11:38:43,159 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-01-24 11:38:43,161 INFO L409 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-01-24 11:38:43,172 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-01-24 11:38:43,172 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-01-24 11:38:43,174 INFO L87 Difference]: Start difference. First operand 43 states. Second operand 2 states. [2018-01-24 11:38:43,194 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-24 11:38:43,194 INFO L93 Difference]: Finished difference Result 77 states and 86 transitions. [2018-01-24 11:38:43,194 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-01-24 11:38:43,195 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 13 [2018-01-24 11:38:43,196 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-24 11:38:43,204 INFO L225 Difference]: With dead ends: 77 [2018-01-24 11:38:43,204 INFO L226 Difference]: Without dead ends: 35 [2018-01-24 11:38:43,208 INFO L525 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 [2018-01-24 11:38:43,221 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2018-01-24 11:38:43,235 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 35. [2018-01-24 11:38:43,236 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35 states. [2018-01-24 11:38:43,237 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 37 transitions. [2018-01-24 11:38:43,239 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 37 transitions. Word has length 13 [2018-01-24 11:38:43,239 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-24 11:38:43,239 INFO L432 AbstractCegarLoop]: Abstraction has 35 states and 37 transitions. [2018-01-24 11:38:43,239 INFO L433 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-01-24 11:38:43,239 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 37 transitions. [2018-01-24 11:38:43,240 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2018-01-24 11:38:43,240 INFO L314 BasicCegarLoop]: Found error trace [2018-01-24 11:38:43,240 INFO L322 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-24 11:38:43,240 INFO L371 AbstractCegarLoop]: === Iteration 2 === [bubbleSortErr7RequiresViolation, bubbleSortErr11RequiresViolation, bubbleSortErr0RequiresViolation, bubbleSortErr3RequiresViolation, bubbleSortErr9RequiresViolation, bubbleSortErr1RequiresViolation, bubbleSortErr2RequiresViolation, bubbleSortErr8RequiresViolation, bubbleSortErr6RequiresViolation, bubbleSortErr10RequiresViolation, bubbleSortErr4RequiresViolation, bubbleSortErr5RequiresViolation, mainErr0EnsuresViolation]=== [2018-01-24 11:38:43,240 INFO L82 PathProgramCache]: Analyzing trace with hash 1573832596, now seen corresponding path program 1 times [2018-01-24 11:38:43,241 INFO L209 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-01-24 11:38:43,241 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-01-24 11:38:43,242 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 11:38:43,242 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-24 11:38:43,242 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 11:38:43,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-01-24 11:38:43,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-01-24 11:38:43,366 INFO L381 BasicCegarLoop]: Counterexample might be feasible [2018-01-24 11:38:43,389 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.01 11:38:43 BoogieIcfgContainer [2018-01-24 11:38:43,389 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-01-24 11:38:43,390 INFO L168 Benchmark]: Toolchain (without parser) took 926.41 ms. Allocated memory was 305.1 MB in the beginning and 469.2 MB in the end (delta: 164.1 MB). Free memory was 266.0 MB in the beginning and 442.3 MB in the end (delta: -176.3 MB). Peak memory consumption was 67.9 MB. Max. memory is 5.3 GB. [2018-01-24 11:38:43,392 INFO L168 Benchmark]: CDTParser took 0.13 ms. Allocated memory is still 305.1 MB. Free memory is still 270.0 MB. There was no memory consumed. Max. memory is 5.3 GB. [2018-01-24 11:38:43,393 INFO L168 Benchmark]: CACSL2BoogieTranslator took 193.44 ms. Allocated memory is still 305.1 MB. Free memory was 266.0 MB in the beginning and 256.1 MB in the end (delta: 10.0 MB). Peak memory consumption was 10.0 MB. Max. memory is 5.3 GB. [2018-01-24 11:38:43,393 INFO L168 Benchmark]: Boogie Preprocessor took 30.73 ms. Allocated memory is still 305.1 MB. Free memory is still 256.1 MB. There was no memory consumed. Max. memory is 5.3 GB. [2018-01-24 11:38:43,394 INFO L168 Benchmark]: RCFGBuilder took 248.79 ms. Allocated memory is still 305.1 MB. Free memory was 256.1 MB in the beginning and 239.1 MB in the end (delta: 17.0 MB). Peak memory consumption was 17.0 MB. Max. memory is 5.3 GB. [2018-01-24 11:38:43,394 INFO L168 Benchmark]: TraceAbstraction took 444.15 ms. Allocated memory was 305.1 MB in the beginning and 469.2 MB in the end (delta: 164.1 MB). Free memory was 239.1 MB in the beginning and 442.3 MB in the end (delta: -203.2 MB). Peak memory consumption was 41.0 MB. Max. memory is 5.3 GB. [2018-01-24 11:38:43,397 INFO L344 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13 ms. Allocated memory is still 305.1 MB. Free memory is still 270.0 MB. There was no memory consumed. Max. memory is 5.3 GB. * CACSL2BoogieTranslator took 193.44 ms. Allocated memory is still 305.1 MB. Free memory was 266.0 MB in the beginning and 256.1 MB in the end (delta: 10.0 MB). Peak memory consumption was 10.0 MB. Max. memory is 5.3 GB. * Boogie Preprocessor took 30.73 ms. Allocated memory is still 305.1 MB. Free memory is still 256.1 MB. There was no memory consumed. Max. memory is 5.3 GB. * RCFGBuilder took 248.79 ms. Allocated memory is still 305.1 MB. Free memory was 256.1 MB in the beginning and 239.1 MB in the end (delta: 17.0 MB). Peak memory consumption was 17.0 MB. Max. memory is 5.3 GB. * TraceAbstraction took 444.15 ms. Allocated memory was 305.1 MB in the beginning and 469.2 MB in the end (delta: 164.1 MB). Free memory was 239.1 MB in the beginning and 442.3 MB in the end (delta: -203.2 MB). Peak memory consumption was 41.0 MB. Max. memory is 5.3 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 1]: 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] VAL [\old(array_size)=2, array_size=2, i=1, j=1, numbers={4:3}, numbers={4:3}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 43 locations, 13 error locations. UNSAFE Result, 0.3s 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, 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, REUSE_STATISTICS: 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_Camel+AI_EQ.epf_AutomizerC.xml/Csv-Benchmark-0-2018-01-24_11-38-43-407.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_Camel+AI_EQ.epf_AutomizerC.xml/Csv-TraceAbstractionBenchmarks-0-2018-01-24_11-38-43-407.csv Received shutdown request...