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_preciseopt.epf -i ../../../trunk/examples/svcomp/array-memsafety/bubblesort_unsafe_false-valid-deref.i -------------------------------------------------------------------------------- This is Ultimate 0.1.23-2f49842 [2018-01-21 08:11:19,992 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-01-21 08:11:19,993 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-01-21 08:11:20,036 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-01-21 08:11:20,037 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-01-21 08:11:20,037 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-01-21 08:11:20,038 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-01-21 08:11:20,040 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-01-21 08:11:20,042 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-01-21 08:11:20,043 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-01-21 08:11:20,044 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-01-21 08:11:20,044 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-01-21 08:11:20,045 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-01-21 08:11:20,046 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-01-21 08:11:20,047 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-01-21 08:11:20,050 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-01-21 08:11:20,052 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-01-21 08:11:20,054 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-01-21 08:11:20,055 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-01-21 08:11:20,057 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-01-21 08:11:20,060 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-01-21 08:11:20,065 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-01-21 08:11:20,065 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-01-21 08:11:20,066 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_preciseopt.epf [2018-01-21 08:11:20,076 INFO L110 SettingsManager]: Loading preferences was successful [2018-01-21 08:11:20,076 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-01-21 08:11:20,077 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-01-21 08:11:20,077 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-01-21 08:11:20,077 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-01-21 08:11:20,077 INFO L133 SettingsManager]: * Weq Fattening=true [2018-01-21 08:11:20,078 INFO L133 SettingsManager]: * Flatten before fatten=true [2018-01-21 08:11:20,078 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=VPDomain [2018-01-21 08:11:20,078 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-01-21 08:11:20,079 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-01-21 08:11:20,079 INFO L133 SettingsManager]: * sizeof long=4 [2018-01-21 08:11:20,079 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-01-21 08:11:20,079 INFO L133 SettingsManager]: * Check allocation purity=true [2018-01-21 08:11:20,080 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-01-21 08:11:20,080 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-01-21 08:11:20,080 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-01-21 08:11:20,080 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-01-21 08:11:20,080 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-01-21 08:11:20,081 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-01-21 08:11:20,081 INFO L133 SettingsManager]: * sizeof long double=12 [2018-01-21 08:11:20,081 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-01-21 08:11:20,081 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-01-21 08:11:20,081 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-01-21 08:11:20,082 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-01-21 08:11:20,082 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-01-21 08:11:20,082 INFO L133 SettingsManager]: * Add additional assume for each assert=false [2018-01-21 08:11:20,082 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-01-21 08:11:20,082 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-01-21 08:11:20,083 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-01-21 08:11:20,083 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-01-21 08:11:20,083 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-01-21 08:11:20,083 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-01-21 08:11:20,083 INFO L133 SettingsManager]: * Stop after first violation was found=false [2018-01-21 08:11:20,083 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-01-21 08:11:20,083 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-01-21 08:11:20,083 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-01-21 08:11:20,083 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-01-21 08:11:20,083 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-01-21 08:11:20,084 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-01-21 08:11:20,084 INFO L133 SettingsManager]: * TransformationType=HEAP_SEPARATOR [2018-01-21 08:11:20,117 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-01-21 08:11:20,127 INFO L266 ainManager$Toolchain]: [Toolchain 1]: Parser(s) successfully initialized [2018-01-21 08:11:20,131 INFO L222 ainManager$Toolchain]: [Toolchain 1]: Toolchain data selected. [2018-01-21 08:11:20,132 INFO L271 PluginConnector]: Initializing CDTParser... [2018-01-21 08:11:20,132 INFO L276 PluginConnector]: CDTParser initialized [2018-01-21 08:11:20,133 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/array-memsafety/bubblesort_unsafe_false-valid-deref.i [2018-01-21 08:11:20,228 INFO L304 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-01-21 08:11:20,232 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-01-21 08:11:20,232 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-01-21 08:11:20,232 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-01-21 08:11:20,238 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-01-21 08:11:20,239 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.01 08:11:20" (1/1) ... [2018-01-21 08:11:20,242 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3ca73ec6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.01 08:11:20, skipping insertion in model container [2018-01-21 08:11:20,242 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.01 08:11:20" (1/1) ... [2018-01-21 08:11:20,257 INFO L153 Dispatcher]: Using SV-COMP mode [2018-01-21 08:11:20,272 INFO L153 Dispatcher]: Using SV-COMP mode [2018-01-21 08:11:20,387 INFO L450 PostProcessor]: Settings: Checked method=main [2018-01-21 08:11:20,403 INFO L450 PostProcessor]: Settings: Checked method=main [2018-01-21 08:11:20,409 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.01 08:11:20 WrapperNode [2018-01-21 08:11:20,410 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-01-21 08:11:20,410 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-01-21 08:11:20,411 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-01-21 08:11:20,411 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-01-21 08:11:20,422 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.01 08:11:20" (1/1) ... [2018-01-21 08:11:20,422 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.01 08:11:20" (1/1) ... [2018-01-21 08:11:20,430 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.01 08:11:20" (1/1) ... [2018-01-21 08:11:20,430 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.01 08:11:20" (1/1) ... [2018-01-21 08:11:20,433 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.01 08:11:20" (1/1) ... [2018-01-21 08:11:20,437 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.01 08:11:20" (1/1) ... [2018-01-21 08:11:20,438 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.01 08:11:20" (1/1) ... [2018-01-21 08:11:20,440 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-01-21 08:11:20,441 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-01-21 08:11:20,441 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-01-21 08:11:20,441 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-01-21 08:11:20,442 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.01 08:11:20" (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 08:11:20,485 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-01-21 08:11:20,485 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-01-21 08:11:20,485 INFO L136 BoogieDeclarations]: Found implementation of procedure bubbleSort [2018-01-21 08:11:20,485 INFO L136 BoogieDeclarations]: Found implementation of procedure main [2018-01-21 08:11:20,485 INFO L128 BoogieDeclarations]: Found specification of procedure write~int [2018-01-21 08:11:20,485 INFO L128 BoogieDeclarations]: Found specification of procedure read~int [2018-01-21 08:11:20,485 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.free [2018-01-21 08:11:20,486 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-01-21 08:11:20,486 INFO L128 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2018-01-21 08:11:20,486 INFO L128 BoogieDeclarations]: Found specification of procedure bubbleSort [2018-01-21 08:11:20,486 INFO L128 BoogieDeclarations]: Found specification of procedure main [2018-01-21 08:11:20,486 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-01-21 08:11:20,486 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-01-21 08:11:20,650 INFO L257 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-01-21 08:11:20,650 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.01 08:11:20 BoogieIcfgContainer [2018-01-21 08:11:20,650 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-01-21 08:11:20,651 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-01-21 08:11:20,651 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-01-21 08:11:20,653 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-01-21 08:11:20,653 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.01 08:11:20" (1/3) ... [2018-01-21 08:11:20,654 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@50f86eb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.01 08:11:20, skipping insertion in model container [2018-01-21 08:11:20,654 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.01 08:11:20" (2/3) ... [2018-01-21 08:11:20,655 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@50f86eb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.01 08:11:20, skipping insertion in model container [2018-01-21 08:11:20,655 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.01 08:11:20" (3/3) ... [2018-01-21 08:11:20,657 INFO L105 eAbstractionObserver]: Analyzing ICFG bubblesort_unsafe_false-valid-deref.i [2018-01-21 08:11:20,664 INFO L130 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-01-21 08:11:20,670 INFO L142 ceAbstractionStarter]: Appying trace abstraction to program that has 4 error locations. [2018-01-21 08:11:20,711 INFO L322 AbstractCegarLoop]: Interprodecural is true [2018-01-21 08:11:20,711 INFO L323 AbstractCegarLoop]: Hoare is true [2018-01-21 08:11:20,711 INFO L324 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-01-21 08:11:20,711 INFO L325 AbstractCegarLoop]: Backedges is TWOTRACK [2018-01-21 08:11:20,711 INFO L326 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-01-21 08:11:20,712 INFO L327 AbstractCegarLoop]: Difference is false [2018-01-21 08:11:20,712 INFO L328 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-01-21 08:11:20,712 INFO L333 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == bubbleSortErr0EnsuresViolation======== [2018-01-21 08:11:20,713 INFO L87 2NestedWordAutomaton]: Mode: main mode - execution starts in main procedure [2018-01-21 08:11:20,733 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states. [2018-01-21 08:11:20,740 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-01-21 08:11:20,741 INFO L314 BasicCegarLoop]: Found error trace [2018-01-21 08:11:20,742 INFO L322 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-21 08:11:20,742 INFO L371 AbstractCegarLoop]: === Iteration 1 === [bubbleSortErr0EnsuresViolation]=== [2018-01-21 08:11:20,748 INFO L82 PathProgramCache]: Analyzing trace with hash -916784254, now seen corresponding path program 1 times [2018-01-21 08:11:20,750 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-21 08:11:20,794 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-21 08:11:20,794 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-21 08:11:20,794 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-21 08:11:20,794 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-21 08:11:20,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-21 08:11:20,839 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-21 08:11:20,867 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 08:11:20,869 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-21 08:11:20,870 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-01-21 08:11:20,870 INFO L252 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-01-21 08:11:20,872 INFO L409 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-01-21 08:11:20,882 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-01-21 08:11:20,883 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-01-21 08:11:20,885 INFO L87 Difference]: Start difference. First operand 34 states. Second operand 2 states. [2018-01-21 08:11:20,903 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-21 08:11:20,903 INFO L93 Difference]: Finished difference Result 57 states and 67 transitions. [2018-01-21 08:11:20,903 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-01-21 08:11:20,904 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 10 [2018-01-21 08:11:20,905 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-21 08:11:20,910 INFO L225 Difference]: With dead ends: 57 [2018-01-21 08:11:20,910 INFO L226 Difference]: Without dead ends: 0 [2018-01-21 08:11:20,913 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 08:11:20,927 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-01-21 08:11:20,932 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-01-21 08:11:20,933 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-01-21 08:11:20,933 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-01-21 08:11:20,935 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 10 [2018-01-21 08:11:20,935 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-21 08:11:20,935 INFO L432 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-01-21 08:11:20,935 INFO L433 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-01-21 08:11:20,935 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-01-21 08:11:20,935 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-01-21 08:11:20,939 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-01-21 08:11:21,053 INFO L401 ceAbstractionStarter]: For program point L5''''(lines 5 13) no Hoare annotation was computed. [2018-01-21 08:11:21,054 INFO L404 ceAbstractionStarter]: At program point L6'''(lines 6 12) the Hoare annotation is: true [2018-01-21 08:11:21,054 INFO L401 ceAbstractionStarter]: For program point L9'(line 9) no Hoare annotation was computed. [2018-01-21 08:11:21,054 INFO L401 ceAbstractionStarter]: For program point bubbleSortEXIT(lines 2 14) no Hoare annotation was computed. [2018-01-21 08:11:21,054 INFO L401 ceAbstractionStarter]: For program point L7'(line 7) no Hoare annotation was computed. [2018-01-21 08:11:21,054 INFO L401 ceAbstractionStarter]: For program point L7''(line 7) no Hoare annotation was computed. [2018-01-21 08:11:21,054 INFO L401 ceAbstractionStarter]: For program point L5(lines 5 13) no Hoare annotation was computed. [2018-01-21 08:11:21,054 INFO L401 ceAbstractionStarter]: For program point L6''(lines 6 12) no Hoare annotation was computed. [2018-01-21 08:11:21,055 INFO L401 ceAbstractionStarter]: For program point L6(lines 6 12) no Hoare annotation was computed. [2018-01-21 08:11:21,055 INFO L401 ceAbstractionStarter]: For program point L10(line 10) no Hoare annotation was computed. [2018-01-21 08:11:21,055 INFO L401 ceAbstractionStarter]: For program point L5''(lines 5 13) no Hoare annotation was computed. [2018-01-21 08:11:21,055 INFO L401 ceAbstractionStarter]: For program point L7(line 7) no Hoare annotation was computed. [2018-01-21 08:11:21,055 INFO L401 ceAbstractionStarter]: For program point L8(line 8) no Hoare annotation was computed. [2018-01-21 08:11:21,055 INFO L401 ceAbstractionStarter]: For program point L9(line 9) no Hoare annotation was computed. [2018-01-21 08:11:21,056 INFO L401 ceAbstractionStarter]: For program point L9''(line 9) no Hoare annotation was computed. [2018-01-21 08:11:21,056 INFO L401 ceAbstractionStarter]: For program point bubbleSortErr0EnsuresViolation(lines 2 14) no Hoare annotation was computed. [2018-01-21 08:11:21,056 INFO L404 ceAbstractionStarter]: At program point L5'''(lines 5 13) the Hoare annotation is: true [2018-01-21 08:11:21,056 INFO L401 ceAbstractionStarter]: For program point L8'(line 8) no Hoare annotation was computed. [2018-01-21 08:11:21,056 INFO L404 ceAbstractionStarter]: At program point bubbleSortENTRY(lines 2 14) the Hoare annotation is: true [2018-01-21 08:11:21,056 INFO L401 ceAbstractionStarter]: For program point ULTIMATE.initErr0EnsuresViolation(lines 1 20) no Hoare annotation was computed. [2018-01-21 08:11:21,056 INFO L401 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(lines 1 20) no Hoare annotation was computed. [2018-01-21 08:11:21,056 INFO L404 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(lines 1 20) the Hoare annotation is: true [2018-01-21 08:11:21,057 INFO L401 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(lines 1 20) no Hoare annotation was computed. [2018-01-21 08:11:21,057 INFO L404 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(lines 1 20) the Hoare annotation is: true [2018-01-21 08:11:21,057 INFO L401 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(lines 1 20) no Hoare annotation was computed. [2018-01-21 08:11:21,057 INFO L404 ceAbstractionStarter]: At program point L1(lines 1 20) the Hoare annotation is: true [2018-01-21 08:11:21,057 INFO L401 ceAbstractionStarter]: For program point ULTIMATE.startErr0EnsuresViolation(lines 1 20) no Hoare annotation was computed. [2018-01-21 08:11:21,057 INFO L401 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(lines 1 20) no Hoare annotation was computed. [2018-01-21 08:11:21,057 INFO L404 ceAbstractionStarter]: At program point mainENTRY(lines 15 20) the Hoare annotation is: true [2018-01-21 08:11:21,057 INFO L404 ceAbstractionStarter]: At program point L18(line 18) the Hoare annotation is: true [2018-01-21 08:11:21,057 INFO L401 ceAbstractionStarter]: For program point L18'(line 18) no Hoare annotation was computed. [2018-01-21 08:11:21,058 INFO L401 ceAbstractionStarter]: For program point mainFINAL(lines 15 20) no Hoare annotation was computed. [2018-01-21 08:11:21,058 INFO L401 ceAbstractionStarter]: For program point mainEXIT(lines 15 20) no Hoare annotation was computed. [2018-01-21 08:11:21,058 INFO L401 ceAbstractionStarter]: For program point mainErr0EnsuresViolation(lines 15 20) no Hoare annotation was computed. [2018-01-21 08:11:21,061 INFO L322 AbstractCegarLoop]: Interprodecural is true [2018-01-21 08:11:21,062 INFO L323 AbstractCegarLoop]: Hoare is true [2018-01-21 08:11:21,062 INFO L324 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-01-21 08:11:21,062 INFO L325 AbstractCegarLoop]: Backedges is TWOTRACK [2018-01-21 08:11:21,062 INFO L326 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-01-21 08:11:21,062 INFO L327 AbstractCegarLoop]: Difference is false [2018-01-21 08:11:21,062 INFO L328 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-01-21 08:11:21,063 INFO L333 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == ULTIMATE.initErr0EnsuresViolation======== [2018-01-21 08:11:21,063 INFO L87 2NestedWordAutomaton]: Mode: main mode - execution starts in main procedure [2018-01-21 08:11:21,064 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states. [2018-01-21 08:11:21,065 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2018-01-21 08:11:21,065 INFO L314 BasicCegarLoop]: Found error trace [2018-01-21 08:11:21,065 INFO L322 BasicCegarLoop]: trace histogram [1, 1, 1] [2018-01-21 08:11:21,065 INFO L371 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.initErr0EnsuresViolation]=== [2018-01-21 08:11:21,066 INFO L82 PathProgramCache]: Analyzing trace with hash 84024, now seen corresponding path program 1 times [2018-01-21 08:11:21,066 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-21 08:11:21,067 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-21 08:11:21,067 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-21 08:11:21,067 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-21 08:11:21,068 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-21 08:11:21,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-01-21 08:11:21,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-01-21 08:11:21,099 INFO L381 BasicCegarLoop]: Counterexample might be feasible [2018-01-21 08:11:21,103 WARN L343 cessorBacktranslator]: Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) [2018-01-21 08:11:21,107 INFO L322 AbstractCegarLoop]: Interprodecural is true [2018-01-21 08:11:21,107 INFO L323 AbstractCegarLoop]: Hoare is true [2018-01-21 08:11:21,108 INFO L324 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-01-21 08:11:21,108 INFO L325 AbstractCegarLoop]: Backedges is TWOTRACK [2018-01-21 08:11:21,108 INFO L326 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-01-21 08:11:21,108 INFO L327 AbstractCegarLoop]: Difference is false [2018-01-21 08:11:21,108 INFO L328 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-01-21 08:11:21,108 INFO L333 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == ULTIMATE.startErr0EnsuresViolation======== [2018-01-21 08:11:21,108 INFO L87 2NestedWordAutomaton]: Mode: main mode - execution starts in main procedure [2018-01-21 08:11:21,109 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states. [2018-01-21 08:11:21,110 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2018-01-21 08:11:21,110 INFO L314 BasicCegarLoop]: Found error trace [2018-01-21 08:11:21,110 INFO L322 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-21 08:11:21,110 INFO L371 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0EnsuresViolation]=== [2018-01-21 08:11:21,110 INFO L82 PathProgramCache]: Analyzing trace with hash 785449171, now seen corresponding path program 1 times [2018-01-21 08:11:21,110 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-21 08:11:21,111 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-21 08:11:21,112 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-21 08:11:21,112 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-21 08:11:21,112 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-21 08:11:21,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-21 08:11:21,122 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-21 08:11:21,137 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 08:11:21,137 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-21 08:11:21,137 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-01-21 08:11:21,137 INFO L252 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-01-21 08:11:21,137 INFO L409 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-01-21 08:11:21,137 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-01-21 08:11:21,138 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-01-21 08:11:21,138 INFO L87 Difference]: Start difference. First operand 34 states. Second operand 2 states. [2018-01-21 08:11:21,141 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-21 08:11:21,141 INFO L93 Difference]: Finished difference Result 57 states and 67 transitions. [2018-01-21 08:11:21,141 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-01-21 08:11:21,141 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 15 [2018-01-21 08:11:21,142 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-21 08:11:21,144 INFO L225 Difference]: With dead ends: 57 [2018-01-21 08:11:21,144 INFO L226 Difference]: Without dead ends: 30 [2018-01-21 08:11:21,145 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 08:11:21,145 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2018-01-21 08:11:21,152 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 30. [2018-01-21 08:11:21,153 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2018-01-21 08:11:21,153 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 32 transitions. [2018-01-21 08:11:21,154 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 32 transitions. Word has length 15 [2018-01-21 08:11:21,154 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-21 08:11:21,154 INFO L432 AbstractCegarLoop]: Abstraction has 30 states and 32 transitions. [2018-01-21 08:11:21,154 INFO L433 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-01-21 08:11:21,154 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 32 transitions. [2018-01-21 08:11:21,154 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2018-01-21 08:11:21,154 INFO L314 BasicCegarLoop]: Found error trace [2018-01-21 08:11:21,155 INFO L322 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-21 08:11:21,155 INFO L371 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0EnsuresViolation]=== [2018-01-21 08:11:21,155 INFO L82 PathProgramCache]: Analyzing trace with hash 1358314189, now seen corresponding path program 1 times [2018-01-21 08:11:21,155 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-21 08:11:21,156 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-21 08:11:21,156 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-21 08:11:21,156 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-21 08:11:21,156 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-21 08:11:21,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-01-21 08:11:21,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-01-21 08:11:21,183 INFO L381 BasicCegarLoop]: Counterexample might be feasible [2018-01-21 08:11:21,187 WARN L343 cessorBacktranslator]: Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) [2018-01-21 08:11:21,188 WARN L343 cessorBacktranslator]: Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) [2018-01-21 08:11:21,189 WARN L343 cessorBacktranslator]: Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) [2018-01-21 08:11:21,189 WARN L343 cessorBacktranslator]: Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) [2018-01-21 08:11:21,195 INFO L322 AbstractCegarLoop]: Interprodecural is true [2018-01-21 08:11:21,195 INFO L323 AbstractCegarLoop]: Hoare is true [2018-01-21 08:11:21,195 INFO L324 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-01-21 08:11:21,195 INFO L325 AbstractCegarLoop]: Backedges is TWOTRACK [2018-01-21 08:11:21,195 INFO L326 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-01-21 08:11:21,195 INFO L327 AbstractCegarLoop]: Difference is false [2018-01-21 08:11:21,195 INFO L328 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-01-21 08:11:21,195 INFO L333 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == mainErr0EnsuresViolation======== [2018-01-21 08:11:21,195 INFO L87 2NestedWordAutomaton]: Mode: main mode - execution starts in main procedure [2018-01-21 08:11:21,196 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states. [2018-01-21 08:11:21,197 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2018-01-21 08:11:21,197 INFO L314 BasicCegarLoop]: Found error trace [2018-01-21 08:11:21,197 INFO L322 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-21 08:11:21,197 INFO L371 AbstractCegarLoop]: === Iteration 1 === [mainErr0EnsuresViolation]=== [2018-01-21 08:11:21,197 INFO L82 PathProgramCache]: Analyzing trace with hash -222646115, now seen corresponding path program 1 times [2018-01-21 08:11:21,197 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-21 08:11:21,198 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-21 08:11:21,198 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-21 08:11:21,198 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-21 08:11:21,198 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-21 08:11:21,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-21 08:11:21,206 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-21 08:11:21,217 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 08:11:21,217 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-21 08:11:21,217 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-01-21 08:11:21,217 INFO L252 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-01-21 08:11:21,218 INFO L409 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-01-21 08:11:21,218 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-01-21 08:11:21,218 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-01-21 08:11:21,218 INFO L87 Difference]: Start difference. First operand 34 states. Second operand 2 states. [2018-01-21 08:11:21,222 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-21 08:11:21,222 INFO L93 Difference]: Finished difference Result 57 states and 67 transitions. [2018-01-21 08:11:21,222 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-01-21 08:11:21,222 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 13 [2018-01-21 08:11:21,222 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-21 08:11:21,223 INFO L225 Difference]: With dead ends: 57 [2018-01-21 08:11:21,223 INFO L226 Difference]: Without dead ends: 0 [2018-01-21 08:11:21,223 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 08:11:21,224 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-01-21 08:11:21,224 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-01-21 08:11:21,224 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-01-21 08:11:21,224 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-01-21 08:11:21,224 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 13 [2018-01-21 08:11:21,224 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-21 08:11:21,225 INFO L432 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-01-21 08:11:21,225 INFO L433 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-01-21 08:11:21,225 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-01-21 08:11:21,225 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-01-21 08:11:21,227 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.01 08:11:21 BoogieIcfgContainer [2018-01-21 08:11:21,227 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-01-21 08:11:21,228 INFO L168 Benchmark]: Toolchain (without parser) took 998.85 ms. Allocated memory was 299.9 MB in the beginning and 456.1 MB in the end (delta: 156.2 MB). Free memory was 259.2 MB in the beginning and 413.4 MB in the end (delta: -154.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 5.3 GB. [2018-01-21 08:11:21,229 INFO L168 Benchmark]: CDTParser took 0.13 ms. Allocated memory is still 299.9 MB. Free memory is still 264.2 MB. There was no memory consumed. Max. memory is 5.3 GB. [2018-01-21 08:11:21,229 INFO L168 Benchmark]: CACSL2BoogieTranslator took 177.74 ms. Allocated memory is still 299.9 MB. Free memory was 259.2 MB in the beginning and 251.0 MB in the end (delta: 8.2 MB). Peak memory consumption was 8.2 MB. Max. memory is 5.3 GB. [2018-01-21 08:11:21,230 INFO L168 Benchmark]: Boogie Preprocessor took 29.79 ms. Allocated memory is still 299.9 MB. Free memory was 251.0 MB in the beginning and 249.0 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 5.3 GB. [2018-01-21 08:11:21,231 INFO L168 Benchmark]: RCFGBuilder took 209.83 ms. Allocated memory is still 299.9 MB. Free memory was 249.0 MB in the beginning and 234.3 MB in the end (delta: 14.7 MB). Peak memory consumption was 14.7 MB. Max. memory is 5.3 GB. [2018-01-21 08:11:21,231 INFO L168 Benchmark]: TraceAbstraction took 576.09 ms. Allocated memory was 299.9 MB in the beginning and 456.1 MB in the end (delta: 156.2 MB). Free memory was 234.3 MB in the beginning and 413.4 MB in the end (delta: -179.1 MB). There was no memory consumed. Max. memory is 5.3 GB. [2018-01-21 08:11:21,234 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 299.9 MB. Free memory is still 264.2 MB. There was no memory consumed. Max. memory is 5.3 GB. * CACSL2BoogieTranslator took 177.74 ms. Allocated memory is still 299.9 MB. Free memory was 259.2 MB in the beginning and 251.0 MB in the end (delta: 8.2 MB). Peak memory consumption was 8.2 MB. Max. memory is 5.3 GB. * Boogie Preprocessor took 29.79 ms. Allocated memory is still 299.9 MB. Free memory was 251.0 MB in the beginning and 249.0 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 5.3 GB. * RCFGBuilder took 209.83 ms. Allocated memory is still 299.9 MB. Free memory was 249.0 MB in the beginning and 234.3 MB in the end (delta: 14.7 MB). Peak memory consumption was 14.7 MB. Max. memory is 5.3 GB. * TraceAbstraction took 576.09 ms. Allocated memory was 299.9 MB in the beginning and 456.1 MB in the end (delta: 156.2 MB). Free memory was 234.3 MB in the beginning and 413.4 MB in the end (delta: -179.1 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: - 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: bubbleSortErr0EnsuresViolation CFG has 4 procedures, 34 locations, 4 error locations. SAFE Result, 0.3s OverallTime, 1 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.1s 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: 0.0s HoareAnnotationTime, 8 LocationsWithAnnotation, 8 PreInvPairs, 10 NumberOfFragments, 8 HoareAnnotationTreeSize, 8 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 8 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, 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: - StatisticsResult: Ultimate Automizer benchmark data for error location: ULTIMATE.initErr0EnsuresViolation CFG has 4 procedures, 34 locations, 4 error locations. UNSAFE Result, 0.0s 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 - CounterExampleResult [Line: 1]: not all allocated memory was freed not all allocated memory was freed We found a FailurePath: [L16] int* numbers; [L17] int array_size = __VERIFIER_nondet_int(); [L18] CALL bubbleSort(numbers, array_size) VAL [\old(array_size)=0, numbers={3:2}] [L4] int i, j, temp; [L5] i = (array_size - 1) VAL [\old(array_size)=0, array_size=0, i=-1, numbers={3:2}, numbers={3:2}] [L5] COND FALSE, RET !(i >= 0) VAL [\old(array_size)=0, array_size=0, i=-1, numbers={3:2}, numbers={3:2}] [L18] bubbleSort(numbers, array_size) VAL [array_size=0, numbers={3:2}] [L19] 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: 15]: 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 - InvariantResult [Line: 6]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 5]: Loop Invariant Derived loop invariant: 1 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_mempurity-32bit-Automizer_Taipan+AI_EQ_preciseopt.epf_AutomizerC.xml/Csv-Benchmark-0-2018-01-21_08-11-21-246.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/bubblesort_unsafe_false-valid-deref.i_mempurity-32bit-Automizer_Taipan+AI_EQ_preciseopt.epf_AutomizerC.xml/Csv-TraceAbstractionBenchmarks-0-2018-01-21_08-11-21-246.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/bubblesort_unsafe_false-valid-deref.i_mempurity-32bit-Automizer_Taipan+AI_EQ_preciseopt.epf_AutomizerC.xml/Csv-TraceAbstractionBenchmarks-1-2018-01-21_08-11-21-246.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/bubblesort_unsafe_false-valid-deref.i_mempurity-32bit-Automizer_Taipan+AI_EQ_preciseopt.epf_AutomizerC.xml/Csv-TraceAbstractionBenchmarks-2-2018-01-21_08-11-21-246.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/bubblesort_unsafe_false-valid-deref.i_mempurity-32bit-Automizer_Taipan+AI_EQ_preciseopt.epf_AutomizerC.xml/Csv-TraceAbstractionBenchmarks-3-2018-01-21_08-11-21-246.csv Received shutdown request...