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/mempurity-32bit-Automizer_Taipan+AI_EQ_smtcomp.epf -i ../../../trunk/examples/svcomp/array-memsafety/selectionsort_unsafe_false-valid-deref.i -------------------------------------------------------------------------------- This is Ultimate 0.1.23-2f49842 [2018-01-21 10:06:12,186 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-01-21 10:06:12,188 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-01-21 10:06:12,204 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-01-21 10:06:12,205 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-01-21 10:06:12,205 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-01-21 10:06:12,207 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-01-21 10:06:12,208 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-01-21 10:06:12,210 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-01-21 10:06:12,210 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-01-21 10:06:12,211 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... 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[2018-01-21 10:06:12,231 INFO L98 SettingsManager]: Beginning loading settings from /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/ai/eq-bench/mempurity-32bit-Automizer_Taipan+AI_EQ_smtcomp.epf [2018-01-21 10:06:12,240 INFO L110 SettingsManager]: Loading preferences was successful [2018-01-21 10:06:12,241 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-01-21 10:06:12,242 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-01-21 10:06:12,242 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-01-21 10:06:12,242 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-01-21 10:06:12,242 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=VPDomain [2018-01-21 10:06:12,242 INFO L133 SettingsManager]: * Precise comparison operator=true [2018-01-21 10:06:12,243 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-01-21 10:06:12,243 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-01-21 10:06:12,243 INFO L133 SettingsManager]: * sizeof long=4 [2018-01-21 10:06:12,244 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-01-21 10:06:12,244 INFO L133 SettingsManager]: * Check allocation purity=true [2018-01-21 10:06:12,244 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-01-21 10:06:12,244 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-01-21 10:06:12,244 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-01-21 10:06:12,244 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-01-21 10:06:12,245 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-01-21 10:06:12,245 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-01-21 10:06:12,245 INFO L133 SettingsManager]: * sizeof long double=12 [2018-01-21 10:06:12,245 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-01-21 10:06:12,245 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-01-21 10:06:12,246 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-01-21 10:06:12,246 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-01-21 10:06:12,246 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-01-21 10:06:12,246 INFO L133 SettingsManager]: * Add additional assume for each assert=false [2018-01-21 10:06:12,246 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-01-21 10:06:12,247 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-01-21 10:06:12,247 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-01-21 10:06:12,247 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-01-21 10:06:12,247 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-01-21 10:06:12,247 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-01-21 10:06:12,247 INFO L133 SettingsManager]: * Stop after first violation was found=false [2018-01-21 10:06:12,248 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-01-21 10:06:12,248 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-01-21 10:06:12,248 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-01-21 10:06:12,248 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-01-21 10:06:12,248 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-01-21 10:06:12,249 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-01-21 10:06:12,249 INFO L133 SettingsManager]: * TransformationType=HEAP_SEPARATOR [2018-01-21 10:06:12,284 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-01-21 10:06:12,296 INFO L266 ainManager$Toolchain]: [Toolchain 1]: Parser(s) successfully initialized [2018-01-21 10:06:12,300 INFO L222 ainManager$Toolchain]: [Toolchain 1]: Toolchain data selected. [2018-01-21 10:06:12,302 INFO L271 PluginConnector]: Initializing CDTParser... [2018-01-21 10:06:12,302 INFO L276 PluginConnector]: CDTParser initialized [2018-01-21 10:06:12,303 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/array-memsafety/selectionsort_unsafe_false-valid-deref.i [2018-01-21 10:06:12,442 INFO L304 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-01-21 10:06:12,448 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-01-21 10:06:12,449 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-01-21 10:06:12,449 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-01-21 10:06:12,458 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-01-21 10:06:12,459 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.01 10:06:12" (1/1) ... [2018-01-21 10:06:12,463 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6a992d24 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.01 10:06:12, skipping insertion in model container [2018-01-21 10:06:12,463 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.01 10:06:12" (1/1) ... [2018-01-21 10:06:12,479 INFO L153 Dispatcher]: Using SV-COMP mode [2018-01-21 10:06:12,500 INFO L153 Dispatcher]: Using SV-COMP mode [2018-01-21 10:06:12,617 INFO L450 PostProcessor]: Settings: Checked method=main [2018-01-21 10:06:12,631 INFO L450 PostProcessor]: Settings: Checked method=main [2018-01-21 10:06:12,638 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.01 10:06:12 WrapperNode [2018-01-21 10:06:12,638 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-01-21 10:06:12,639 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-01-21 10:06:12,639 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-01-21 10:06:12,639 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-01-21 10:06:12,650 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.01 10:06:12" (1/1) ... [2018-01-21 10:06:12,650 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.01 10:06:12" (1/1) ... [2018-01-21 10:06:12,657 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.01 10:06:12" (1/1) ... [2018-01-21 10:06:12,658 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.01 10:06:12" (1/1) ... [2018-01-21 10:06:12,660 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.01 10:06:12" (1/1) ... [2018-01-21 10:06:12,662 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.01 10:06:12" (1/1) ... [2018-01-21 10:06:12,663 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.01 10:06:12" (1/1) ... [2018-01-21 10:06:12,665 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-01-21 10:06:12,665 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-01-21 10:06:12,665 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-01-21 10:06:12,665 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-01-21 10:06:12,666 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.01 10:06:12" (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 [2018-01-21 10:06:12,711 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-01-21 10:06:12,712 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-01-21 10:06:12,712 INFO L136 BoogieDeclarations]: Found implementation of procedure SelectionSort [2018-01-21 10:06:12,712 INFO L136 BoogieDeclarations]: Found implementation of procedure main [2018-01-21 10:06:12,712 INFO L128 BoogieDeclarations]: Found specification of procedure write~int [2018-01-21 10:06:12,712 INFO L128 BoogieDeclarations]: Found specification of procedure read~int [2018-01-21 10:06:12,712 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.free [2018-01-21 10:06:12,712 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-01-21 10:06:12,712 INFO L128 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2018-01-21 10:06:12,713 INFO L128 BoogieDeclarations]: Found specification of procedure SelectionSort [2018-01-21 10:06:12,713 INFO L128 BoogieDeclarations]: Found specification of procedure main [2018-01-21 10:06:12,713 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-01-21 10:06:12,713 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-01-21 10:06:12,864 INFO L257 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-01-21 10:06:12,865 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.01 10:06:12 BoogieIcfgContainer [2018-01-21 10:06:12,865 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-01-21 10:06:12,866 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-01-21 10:06:12,866 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-01-21 10:06:12,868 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-01-21 10:06:12,869 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.01 10:06:12" (1/3) ... [2018-01-21 10:06:12,870 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@630b8785 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.01 10:06:12, skipping insertion in model container [2018-01-21 10:06:12,870 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.01 10:06:12" (2/3) ... [2018-01-21 10:06:12,870 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@630b8785 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.01 10:06:12, skipping insertion in model container [2018-01-21 10:06:12,871 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.01 10:06:12" (3/3) ... [2018-01-21 10:06:12,872 INFO L105 eAbstractionObserver]: Analyzing ICFG selectionsort_unsafe_false-valid-deref.i [2018-01-21 10:06:12,881 INFO L130 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-01-21 10:06:12,889 INFO L142 ceAbstractionStarter]: Appying trace abstraction to program that has 4 error locations. [2018-01-21 10:06:12,932 INFO L322 AbstractCegarLoop]: Interprodecural is true [2018-01-21 10:06:12,932 INFO L323 AbstractCegarLoop]: Hoare is true [2018-01-21 10:06:12,932 INFO L324 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-01-21 10:06:12,933 INFO L325 AbstractCegarLoop]: Backedges is TWOTRACK [2018-01-21 10:06:12,933 INFO L326 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-01-21 10:06:12,933 INFO L327 AbstractCegarLoop]: Difference is false [2018-01-21 10:06:12,933 INFO L328 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-01-21 10:06:12,933 INFO L333 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == ULTIMATE.initErr0EnsuresViolation======== [2018-01-21 10:06:12,934 INFO L87 2NestedWordAutomaton]: Mode: main mode - execution starts in main procedure [2018-01-21 10:06:12,948 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states. [2018-01-21 10:06:12,952 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2018-01-21 10:06:12,952 INFO L314 BasicCegarLoop]: Found error trace [2018-01-21 10:06:12,953 INFO L322 BasicCegarLoop]: trace histogram [1, 1, 1] [2018-01-21 10:06:12,954 INFO L371 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.initErr0EnsuresViolation]=== [2018-01-21 10:06:12,959 INFO L82 PathProgramCache]: Analyzing trace with hash 83609, now seen corresponding path program 1 times [2018-01-21 10:06:12,962 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-21 10:06:13,004 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-21 10:06:13,004 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-21 10:06:13,004 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-21 10:06:13,004 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-21 10:06:13,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-01-21 10:06:13,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-01-21 10:06:13,057 INFO L381 BasicCegarLoop]: Counterexample might be feasible [2018-01-21 10:06:13,065 WARN L343 cessorBacktranslator]: Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) [2018-01-21 10:06:13,072 INFO L322 AbstractCegarLoop]: Interprodecural is true [2018-01-21 10:06:13,072 INFO L323 AbstractCegarLoop]: Hoare is true [2018-01-21 10:06:13,073 INFO L324 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-01-21 10:06:13,073 INFO L325 AbstractCegarLoop]: Backedges is TWOTRACK [2018-01-21 10:06:13,073 INFO L326 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-01-21 10:06:13,073 INFO L327 AbstractCegarLoop]: Difference is false [2018-01-21 10:06:13,073 INFO L328 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-01-21 10:06:13,073 INFO L333 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == SelectionSortErr0EnsuresViolation======== [2018-01-21 10:06:13,073 INFO L87 2NestedWordAutomaton]: Mode: main mode - execution starts in main procedure [2018-01-21 10:06:13,075 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states. [2018-01-21 10:06:13,075 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-01-21 10:06:13,075 INFO L314 BasicCegarLoop]: Found error trace [2018-01-21 10:06:13,075 INFO L322 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-21 10:06:13,076 INFO L371 AbstractCegarLoop]: === Iteration 1 === [SelectionSortErr0EnsuresViolation]=== [2018-01-21 10:06:13,076 INFO L82 PathProgramCache]: Analyzing trace with hash -1711478396, now seen corresponding path program 1 times [2018-01-21 10:06:13,076 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-21 10:06:13,077 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-21 10:06:13,077 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-21 10:06:13,077 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-21 10:06:13,077 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-21 10:06:13,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-21 10:06:13,098 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-21 10:06:13,127 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-21 10:06:13,129 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-21 10:06:13,129 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-01-21 10:06:13,129 INFO L252 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-01-21 10:06:13,131 INFO L409 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-01-21 10:06:13,142 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-01-21 10:06:13,142 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-01-21 10:06:13,145 INFO L87 Difference]: Start difference. First operand 34 states. Second operand 2 states. [2018-01-21 10:06:13,170 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-21 10:06:13,170 INFO L93 Difference]: Finished difference Result 57 states and 67 transitions. [2018-01-21 10:06:13,170 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-01-21 10:06:13,172 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 10 [2018-01-21 10:06:13,172 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-21 10:06:13,180 INFO L225 Difference]: With dead ends: 57 [2018-01-21 10:06:13,180 INFO L226 Difference]: Without dead ends: 0 [2018-01-21 10:06:13,184 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 [2018-01-21 10:06:13,264 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-01-21 10:06:13,270 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-01-21 10:06:13,271 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-01-21 10:06:13,272 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-01-21 10:06:13,273 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 10 [2018-01-21 10:06:13,273 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-21 10:06:13,273 INFO L432 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-01-21 10:06:13,273 INFO L433 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-01-21 10:06:13,273 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-01-21 10:06:13,273 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-01-21 10:06:13,275 INFO L322 AbstractCegarLoop]: Interprodecural is true [2018-01-21 10:06:13,275 INFO L323 AbstractCegarLoop]: Hoare is true [2018-01-21 10:06:13,276 INFO L324 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-01-21 10:06:13,276 INFO L325 AbstractCegarLoop]: Backedges is TWOTRACK [2018-01-21 10:06:13,276 INFO L326 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-01-21 10:06:13,276 INFO L327 AbstractCegarLoop]: Difference is false [2018-01-21 10:06:13,276 INFO L328 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-01-21 10:06:13,276 INFO L333 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == ULTIMATE.startErr0EnsuresViolation======== [2018-01-21 10:06:13,276 INFO L87 2NestedWordAutomaton]: Mode: main mode - execution starts in main procedure [2018-01-21 10:06:13,277 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states. [2018-01-21 10:06:13,278 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2018-01-21 10:06:13,278 INFO L314 BasicCegarLoop]: Found error trace [2018-01-21 10:06:13,278 INFO L322 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-21 10:06:13,278 INFO L371 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0EnsuresViolation]=== [2018-01-21 10:06:13,278 INFO L82 PathProgramCache]: Analyzing trace with hash -1079241774, now seen corresponding path program 1 times [2018-01-21 10:06:13,279 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-21 10:06:13,279 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-21 10:06:13,280 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-21 10:06:13,280 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-21 10:06:13,280 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-21 10:06:13,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-21 10:06:13,289 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-21 10:06:13,303 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-21 10:06:13,303 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-21 10:06:13,303 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-01-21 10:06:13,303 INFO L252 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-01-21 10:06:13,304 INFO L409 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-01-21 10:06:13,304 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-01-21 10:06:13,304 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-01-21 10:06:13,305 INFO L87 Difference]: Start difference. First operand 34 states. Second operand 2 states. [2018-01-21 10:06:13,309 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-21 10:06:13,309 INFO L93 Difference]: Finished difference Result 57 states and 67 transitions. [2018-01-21 10:06:13,309 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-01-21 10:06:13,310 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 15 [2018-01-21 10:06:13,310 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-21 10:06:13,312 INFO L225 Difference]: With dead ends: 57 [2018-01-21 10:06:13,313 INFO L226 Difference]: Without dead ends: 30 [2018-01-21 10:06:13,313 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 [2018-01-21 10:06:13,313 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2018-01-21 10:06:13,321 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 30. [2018-01-21 10:06:13,321 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2018-01-21 10:06:13,322 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 32 transitions. [2018-01-21 10:06:13,322 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 32 transitions. Word has length 15 [2018-01-21 10:06:13,322 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-21 10:06:13,322 INFO L432 AbstractCegarLoop]: Abstraction has 30 states and 32 transitions. [2018-01-21 10:06:13,323 INFO L433 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-01-21 10:06:13,323 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 32 transitions. [2018-01-21 10:06:13,323 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2018-01-21 10:06:13,323 INFO L314 BasicCegarLoop]: Found error trace [2018-01-21 10:06:13,323 INFO L322 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-21 10:06:13,323 INFO L371 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0EnsuresViolation]=== [2018-01-21 10:06:13,323 INFO L82 PathProgramCache]: Analyzing trace with hash 1138010476, now seen corresponding path program 1 times [2018-01-21 10:06:13,324 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-21 10:06:13,324 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-21 10:06:13,324 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-21 10:06:13,325 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-21 10:06:13,325 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-21 10:06:13,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-01-21 10:06:13,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-01-21 10:06:13,353 INFO L381 BasicCegarLoop]: Counterexample might be feasible [2018-01-21 10:06:13,357 WARN L343 cessorBacktranslator]: Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) [2018-01-21 10:06:13,358 WARN L343 cessorBacktranslator]: Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) [2018-01-21 10:06:13,358 WARN L343 cessorBacktranslator]: Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) [2018-01-21 10:06:13,359 WARN L343 cessorBacktranslator]: Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) [2018-01-21 10:06:13,364 INFO L322 AbstractCegarLoop]: Interprodecural is true [2018-01-21 10:06:13,364 INFO L323 AbstractCegarLoop]: Hoare is true [2018-01-21 10:06:13,364 INFO L324 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-01-21 10:06:13,364 INFO L325 AbstractCegarLoop]: Backedges is TWOTRACK [2018-01-21 10:06:13,364 INFO L326 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-01-21 10:06:13,364 INFO L327 AbstractCegarLoop]: Difference is false [2018-01-21 10:06:13,364 INFO L328 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-01-21 10:06:13,365 INFO L333 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == mainErr0EnsuresViolation======== [2018-01-21 10:06:13,365 INFO L87 2NestedWordAutomaton]: Mode: main mode - execution starts in main procedure [2018-01-21 10:06:13,366 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states. [2018-01-21 10:06:13,366 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2018-01-21 10:06:13,366 INFO L314 BasicCegarLoop]: Found error trace [2018-01-21 10:06:13,366 INFO L322 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-21 10:06:13,367 INFO L371 AbstractCegarLoop]: === Iteration 1 === [mainErr0EnsuresViolation]=== [2018-01-21 10:06:13,367 INFO L82 PathProgramCache]: Analyzing trace with hash -1096093892, now seen corresponding path program 1 times [2018-01-21 10:06:13,367 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-21 10:06:13,368 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-21 10:06:13,368 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-21 10:06:13,368 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-21 10:06:13,368 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-21 10:06:13,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-21 10:06:13,376 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-21 10:06:13,385 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-21 10:06:13,386 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-21 10:06:13,386 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-01-21 10:06:13,386 INFO L252 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-01-21 10:06:13,386 INFO L409 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-01-21 10:06:13,387 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-01-21 10:06:13,387 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-01-21 10:06:13,387 INFO L87 Difference]: Start difference. First operand 34 states. Second operand 2 states. [2018-01-21 10:06:13,392 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-21 10:06:13,392 INFO L93 Difference]: Finished difference Result 57 states and 67 transitions. [2018-01-21 10:06:13,392 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-01-21 10:06:13,392 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 13 [2018-01-21 10:06:13,393 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-21 10:06:13,393 INFO L225 Difference]: With dead ends: 57 [2018-01-21 10:06:13,393 INFO L226 Difference]: Without dead ends: 0 [2018-01-21 10:06:13,394 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 [2018-01-21 10:06:13,394 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-01-21 10:06:13,394 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-01-21 10:06:13,394 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-01-21 10:06:13,394 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-01-21 10:06:13,394 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 13 [2018-01-21 10:06:13,394 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-21 10:06:13,394 INFO L432 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-01-21 10:06:13,395 INFO L433 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-01-21 10:06:13,395 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-01-21 10:06:13,395 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-01-21 10:06:13,397 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.01 10:06:13 BoogieIcfgContainer [2018-01-21 10:06:13,397 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-01-21 10:06:13,397 INFO L168 Benchmark]: Toolchain (without parser) took 954.39 ms. Allocated memory was 303.0 MB in the beginning and 463.5 MB in the end (delta: 160.4 MB). Free memory was 262.2 MB in the beginning and 424.1 MB in the end (delta: -161.9 MB). There was no memory consumed. Max. memory is 5.3 GB. [2018-01-21 10:06:13,398 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 303.0 MB. Free memory is still 266.2 MB. There was no memory consumed. Max. memory is 5.3 GB. [2018-01-21 10:06:13,399 INFO L168 Benchmark]: CACSL2BoogieTranslator took 189.24 ms. Allocated memory is still 303.0 MB. Free memory was 262.2 MB in the beginning and 252.2 MB in the end (delta: 10.0 MB). Peak memory consumption was 10.0 MB. Max. memory is 5.3 GB. [2018-01-21 10:06:13,399 INFO L168 Benchmark]: Boogie Preprocessor took 25.90 ms. Allocated memory is still 303.0 MB. Free memory is still 252.2 MB. There was no memory consumed. Max. memory is 5.3 GB. [2018-01-21 10:06:13,399 INFO L168 Benchmark]: RCFGBuilder took 200.27 ms. Allocated memory is still 303.0 MB. Free memory was 252.2 MB in the beginning and 237.3 MB in the end (delta: 15.0 MB). Peak memory consumption was 15.0 MB. Max. memory is 5.3 GB. [2018-01-21 10:06:13,400 INFO L168 Benchmark]: TraceAbstraction took 530.87 ms. Allocated memory was 303.0 MB in the beginning and 463.5 MB in the end (delta: 160.4 MB). Free memory was 237.3 MB in the beginning and 424.1 MB in the end (delta: -186.8 MB). There was no memory consumed. Max. memory is 5.3 GB. [2018-01-21 10:06:13,402 INFO L344 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 ms. Allocated memory is still 303.0 MB. Free memory is still 266.2 MB. There was no memory consumed. Max. memory is 5.3 GB. * CACSL2BoogieTranslator took 189.24 ms. Allocated memory is still 303.0 MB. Free memory was 262.2 MB in the beginning and 252.2 MB in the end (delta: 10.0 MB). Peak memory consumption was 10.0 MB. Max. memory is 5.3 GB. * Boogie Preprocessor took 25.90 ms. Allocated memory is still 303.0 MB. Free memory is still 252.2 MB. There was no memory consumed. Max. memory is 5.3 GB. * RCFGBuilder took 200.27 ms. Allocated memory is still 303.0 MB. Free memory was 252.2 MB in the beginning and 237.3 MB in the end (delta: 15.0 MB). Peak memory consumption was 15.0 MB. Max. memory is 5.3 GB. * TraceAbstraction took 530.87 ms. Allocated memory was 303.0 MB in the beginning and 463.5 MB in the end (delta: 160.4 MB). Free memory was 237.3 MB in the beginning and 424.1 MB in the end (delta: -186.8 MB). There was no memory consumed. Max. memory is 5.3 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) - GenericResult: Unfinished Backtranslation Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) - GenericResult: Unfinished Backtranslation Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) - GenericResult: Unfinished Backtranslation Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) - GenericResult: Unfinished Backtranslation Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 1]: not all allocated memory was freed not all allocated memory was freed We found a FailurePath: - StatisticsResult: Ultimate Automizer benchmark data for error location: ULTIMATE.initErr0EnsuresViolation CFG has 4 procedures, 34 locations, 4 error locations. UNSAFE Result, 0.1s OverallTime, 1 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=34occurred 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: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 3 NumberOfCodeBlocks, 3 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, REUSE_STATISTICS: No data available - PositiveResult [Line: 2]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - StatisticsResult: Ultimate Automizer benchmark data for error location: SelectionSortErr0EnsuresViolation CFG has 4 procedures, 34 locations, 4 error locations. SAFE Result, 0.2s OverallTime, 1 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 34 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=34occurred 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, 10 NumberOfCodeBlocks, 10 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 9 ConstructedInterpolants, 0 QuantifiedInterpolants, 81 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 - CounterExampleResult [Line: 1]: not all allocated memory was freed not all allocated memory was freed We found a FailurePath: [L20] int *a; [L21] int array_size = __VERIFIER_nondet_int(); [L22] CALL SelectionSort(a, array_size) VAL [\old(array_size)=0, a={3:2}] [L4] int i; [L5] i = 0 VAL [\old(array_size)=0, a={3:2}, a={3:2}, array_size=0, i=0] [L5] COND FALSE, RET !(i < array_size - 1) VAL [\old(array_size)=0, a={3:2}, a={3:2}, array_size=0, i=0] [L22] SelectionSort(a, array_size) VAL [a={3:2}, array_size=0] [L23] return 0; - StatisticsResult: Ultimate Automizer benchmark data for error location: ULTIMATE.startErr0EnsuresViolation CFG has 4 procedures, 34 locations, 4 error locations. UNSAFE Result, 0.0s OverallTime, 2 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 34 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=34occurred 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, 31 NumberOfCodeBlocks, 31 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 14 ConstructedInterpolants, 0 QuantifiedInterpolants, 196 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 - PositiveResult [Line: 19]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - StatisticsResult: Ultimate Automizer benchmark data for error location: mainErr0EnsuresViolation CFG has 4 procedures, 34 locations, 4 error locations. SAFE Result, 0.0s OverallTime, 1 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 34 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=34occurred 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, 13 NumberOfCodeBlocks, 13 NumberOfCodeBlocksAsserted, 1 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/selectionsort_unsafe_false-valid-deref.i_mempurity-32bit-Automizer_Taipan+AI_EQ_smtcomp.epf_AutomizerC.xml/Csv-Benchmark-0-2018-01-21_10-06-13-410.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/selectionsort_unsafe_false-valid-deref.i_mempurity-32bit-Automizer_Taipan+AI_EQ_smtcomp.epf_AutomizerC.xml/Csv-TraceAbstractionBenchmarks-0-2018-01-21_10-06-13-410.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/selectionsort_unsafe_false-valid-deref.i_mempurity-32bit-Automizer_Taipan+AI_EQ_smtcomp.epf_AutomizerC.xml/Csv-TraceAbstractionBenchmarks-1-2018-01-21_10-06-13-410.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/selectionsort_unsafe_false-valid-deref.i_mempurity-32bit-Automizer_Taipan+AI_EQ_smtcomp.epf_AutomizerC.xml/Csv-TraceAbstractionBenchmarks-2-2018-01-21_10-06-13-410.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/selectionsort_unsafe_false-valid-deref.i_mempurity-32bit-Automizer_Taipan+AI_EQ_smtcomp.epf_AutomizerC.xml/Csv-TraceAbstractionBenchmarks-3-2018-01-21_10-06-13-410.csv Received shutdown request...