java -Xmx6000000000 -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data ./data --generate-csv --csv-dir ../../../releaseScripts/default/UAutomizer-linux/csv -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/ai/eq-bench/svcomp-DerefFreeMemtrack-32bit-Automizer_Taipan+AI_EQ.epf -i ../../../trunk/examples/svcomp/ldv-memsafety/ArraysOfVariableLength_false-valid-deref-write.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-6b94a2f [2018-01-24 15:50:10,892 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-01-24 15:50:10,923 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-01-24 15:50:10,938 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-01-24 15:50:10,938 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-01-24 15:50:10,939 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-01-24 15:50:10,940 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-01-24 15:50:10,942 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-01-24 15:50:10,945 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-01-24 15:50:10,945 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-01-24 15:50:10,946 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-01-24 15:50:10,946 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-01-24 15:50:10,947 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-01-24 15:50:10,948 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-01-24 15:50:10,949 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-01-24 15:50:10,951 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-01-24 15:50:10,954 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-01-24 15:50:10,955 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-01-24 15:50:10,957 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-01-24 15:50:10,958 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-01-24 15:50:10,960 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-01-24 15:50:10,961 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-01-24 15:50:10,961 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-01-24 15:50:10,962 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-01-24 15:50:10,963 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-01-24 15:50:10,964 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-01-24 15:50:10,964 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-01-24 15:50:10,965 INFO L177 SettingsManager]: PEA to Boogie provides no preferences, ignoring... [2018-01-24 15:50:10,965 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-01-24 15:50:10,965 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-01-24 15:50:10,966 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-01-24 15:50:10,966 INFO L98 SettingsManager]: Beginning loading settings from /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/ai/eq-bench/svcomp-DerefFreeMemtrack-32bit-Automizer_Taipan+AI_EQ.epf [2018-01-24 15:50:10,976 INFO L110 SettingsManager]: Loading preferences was successful [2018-01-24 15:50:10,976 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-01-24 15:50:10,977 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-01-24 15:50:10,977 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-01-24 15:50:10,977 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-01-24 15:50:10,978 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=VPDomain [2018-01-24 15:50:10,978 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-01-24 15:50:10,978 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-01-24 15:50:10,979 INFO L133 SettingsManager]: * sizeof long=4 [2018-01-24 15:50:10,979 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-01-24 15:50:10,979 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-01-24 15:50:10,979 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-01-24 15:50:10,979 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-01-24 15:50:10,979 INFO L133 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2018-01-24 15:50:10,980 INFO L133 SettingsManager]: * Bitprecise bitfields=true [2018-01-24 15:50:10,980 INFO L133 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2018-01-24 15:50:10,980 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-01-24 15:50:10,980 INFO L133 SettingsManager]: * sizeof long double=12 [2018-01-24 15:50:10,980 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-01-24 15:50:10,981 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-01-24 15:50:10,981 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-01-24 15:50:10,981 INFO L133 SettingsManager]: * Add additional assume for each assert=false [2018-01-24 15:50:10,981 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-01-24 15:50:10,981 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-01-24 15:50:10,982 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-01-24 15:50:10,982 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-01-24 15:50:10,982 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-01-24 15:50:10,982 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-01-24 15:50:10,982 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-01-24 15:50:10,983 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-01-24 15:50:10,983 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-01-24 15:50:10,983 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-01-24 15:50:10,983 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-01-24 15:50:10,984 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-01-24 15:50:10,984 INFO L133 SettingsManager]: * TransformationType=HEAP_SEPARATOR [2018-01-24 15:50:11,019 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-01-24 15:50:11,033 INFO L266 ainManager$Toolchain]: [Toolchain 1]: Parser(s) successfully initialized [2018-01-24 15:50:11,036 INFO L222 ainManager$Toolchain]: [Toolchain 1]: Toolchain data selected. [2018-01-24 15:50:11,038 INFO L271 PluginConnector]: Initializing CDTParser... [2018-01-24 15:50:11,038 INFO L276 PluginConnector]: CDTParser initialized [2018-01-24 15:50:11,039 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-memsafety/ArraysOfVariableLength_false-valid-deref-write.c [2018-01-24 15:50:11,137 INFO L304 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-01-24 15:50:11,144 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-01-24 15:50:11,145 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-01-24 15:50:11,145 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-01-24 15:50:11,151 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-01-24 15:50:11,152 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.01 03:50:11" (1/1) ... [2018-01-24 15:50:11,155 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@400f498e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 03:50:11, skipping insertion in model container [2018-01-24 15:50:11,155 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.01 03:50:11" (1/1) ... [2018-01-24 15:50:11,175 INFO L153 Dispatcher]: Using SV-COMP mode [2018-01-24 15:50:11,195 INFO L153 Dispatcher]: Using SV-COMP mode [2018-01-24 15:50:11,313 INFO L450 PostProcessor]: Settings: Checked method=main [2018-01-24 15:50:11,329 INFO L450 PostProcessor]: Settings: Checked method=main [2018-01-24 15:50:11,335 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 03:50:11 WrapperNode [2018-01-24 15:50:11,335 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-01-24 15:50:11,335 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-01-24 15:50:11,336 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-01-24 15:50:11,336 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-01-24 15:50:11,347 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 03:50:11" (1/1) ... [2018-01-24 15:50:11,347 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 03:50:11" (1/1) ... [2018-01-24 15:50:11,355 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 03:50:11" (1/1) ... [2018-01-24 15:50:11,355 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 03:50:11" (1/1) ... [2018-01-24 15:50:11,359 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 03:50:11" (1/1) ... [2018-01-24 15:50:11,363 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 03:50:11" (1/1) ... [2018-01-24 15:50:11,364 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 03:50:11" (1/1) ... [2018-01-24 15:50:11,367 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-01-24 15:50:11,368 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-01-24 15:50:11,368 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-01-24 15:50:11,368 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-01-24 15:50:11,369 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 03:50:11" (1/1) ... No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-01-24 15:50:11,414 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-01-24 15:50:11,414 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-01-24 15:50:11,414 INFO L136 BoogieDeclarations]: Found implementation of procedure foo [2018-01-24 15:50:11,415 INFO L136 BoogieDeclarations]: Found implementation of procedure main [2018-01-24 15:50:11,415 INFO L128 BoogieDeclarations]: Found specification of procedure write~int [2018-01-24 15:50:11,415 INFO L128 BoogieDeclarations]: Found specification of procedure read~int [2018-01-24 15:50:11,415 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.free [2018-01-24 15:50:11,415 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-01-24 15:50:11,415 INFO L128 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-01-24 15:50:11,416 INFO L128 BoogieDeclarations]: Found specification of procedure foo [2018-01-24 15:50:11,416 INFO L128 BoogieDeclarations]: Found specification of procedure main [2018-01-24 15:50:11,416 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-01-24 15:50:11,416 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-01-24 15:50:11,607 INFO L257 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-01-24 15:50:11,607 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.01 03:50:11 BoogieIcfgContainer [2018-01-24 15:50:11,608 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-01-24 15:50:11,608 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-01-24 15:50:11,609 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-01-24 15:50:11,610 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-01-24 15:50:11,611 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.01 03:50:11" (1/3) ... [2018-01-24 15:50:11,612 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@558c6a6d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.01 03:50:11, skipping insertion in model container [2018-01-24 15:50:11,612 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 03:50:11" (2/3) ... [2018-01-24 15:50:11,612 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@558c6a6d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.01 03:50:11, skipping insertion in model container [2018-01-24 15:50:11,612 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.01 03:50:11" (3/3) ... [2018-01-24 15:50:11,613 INFO L105 eAbstractionObserver]: Analyzing ICFG ArraysOfVariableLength_false-valid-deref-write.c [2018-01-24 15:50:11,622 INFO L130 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-01-24 15:50:11,627 INFO L142 ceAbstractionStarter]: Appying trace abstraction to program that has 8 error locations. [2018-01-24 15:50:11,663 INFO L322 AbstractCegarLoop]: Interprodecural is true [2018-01-24 15:50:11,663 INFO L323 AbstractCegarLoop]: Hoare is true [2018-01-24 15:50:11,664 INFO L324 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-01-24 15:50:11,664 INFO L325 AbstractCegarLoop]: Backedges is TWOTRACK [2018-01-24 15:50:11,664 INFO L326 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-01-24 15:50:11,664 INFO L327 AbstractCegarLoop]: Difference is false [2018-01-24 15:50:11,664 INFO L328 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-01-24 15:50:11,664 INFO L333 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-01-24 15:50:11,665 INFO L87 2NestedWordAutomaton]: Mode: main mode - execution starts in main procedure [2018-01-24 15:50:11,687 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states. [2018-01-24 15:50:11,693 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2018-01-24 15:50:11,694 INFO L314 BasicCegarLoop]: Found error trace [2018-01-24 15:50:11,695 INFO L322 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-24 15:50:11,695 INFO L371 AbstractCegarLoop]: === Iteration 1 === [fooErr1RequiresViolation, fooErr0AssertViolation, fooErr2RequiresViolation, mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr0RequiresViolation, mainErr4EnsuresViolation]=== [2018-01-24 15:50:11,700 INFO L82 PathProgramCache]: Analyzing trace with hash 1202729229, now seen corresponding path program 1 times [2018-01-24 15:50:11,703 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-24 15:50:11,755 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 15:50:11,755 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-24 15:50:11,755 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 15:50:11,755 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-24 15:50:11,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-24 15:50:11,794 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-24 15:50:11,826 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-24 15:50:11,828 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-24 15:50:11,828 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-01-24 15:50:11,828 INFO L252 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-01-24 15:50:11,831 INFO L409 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-01-24 15:50:11,842 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-01-24 15:50:11,843 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-01-24 15:50:11,844 INFO L87 Difference]: Start difference. First operand 49 states. Second operand 2 states. [2018-01-24 15:50:11,864 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-24 15:50:11,865 INFO L93 Difference]: Finished difference Result 90 states and 103 transitions. [2018-01-24 15:50:11,865 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-01-24 15:50:11,866 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 13 [2018-01-24 15:50:11,866 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-24 15:50:11,873 INFO L225 Difference]: With dead ends: 90 [2018-01-24 15:50:11,873 INFO L226 Difference]: Without dead ends: 46 [2018-01-24 15:50:11,876 INFO L525 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-01-24 15:50:11,891 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2018-01-24 15:50:11,904 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 46. [2018-01-24 15:50:11,905 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 46 states. [2018-01-24 15:50:11,906 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 49 transitions. [2018-01-24 15:50:11,908 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 49 transitions. Word has length 13 [2018-01-24 15:50:11,908 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-24 15:50:11,908 INFO L432 AbstractCegarLoop]: Abstraction has 46 states and 49 transitions. [2018-01-24 15:50:11,908 INFO L433 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-01-24 15:50:11,908 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 49 transitions. [2018-01-24 15:50:11,909 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2018-01-24 15:50:11,909 INFO L314 BasicCegarLoop]: Found error trace [2018-01-24 15:50:11,909 INFO L322 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-24 15:50:11,909 INFO L371 AbstractCegarLoop]: === Iteration 2 === [fooErr1RequiresViolation, fooErr0AssertViolation, fooErr2RequiresViolation, mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr0RequiresViolation, mainErr4EnsuresViolation]=== [2018-01-24 15:50:11,909 INFO L82 PathProgramCache]: Analyzing trace with hash -1812590093, now seen corresponding path program 1 times [2018-01-24 15:50:11,909 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-24 15:50:11,910 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 15:50:11,910 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-24 15:50:11,910 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 15:50:11,911 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-24 15:50:11,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-24 15:50:11,924 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-24 15:50:11,977 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-24 15:50:11,977 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-24 15:50:11,978 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-01-24 15:50:11,978 INFO L252 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-01-24 15:50:11,980 INFO L409 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-01-24 15:50:11,980 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-01-24 15:50:11,981 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-01-24 15:50:11,981 INFO L87 Difference]: Start difference. First operand 46 states and 49 transitions. Second operand 3 states. [2018-01-24 15:50:12,120 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-24 15:50:12,120 INFO L93 Difference]: Finished difference Result 83 states and 90 transitions. [2018-01-24 15:50:12,120 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-01-24 15:50:12,120 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 14 [2018-01-24 15:50:12,121 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-24 15:50:12,124 INFO L225 Difference]: With dead ends: 83 [2018-01-24 15:50:12,124 INFO L226 Difference]: Without dead ends: 67 [2018-01-24 15:50:12,125 INFO L525 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-01-24 15:50:12,126 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67 states. [2018-01-24 15:50:12,137 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67 to 50. [2018-01-24 15:50:12,137 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 50 states. [2018-01-24 15:50:12,139 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 53 transitions. [2018-01-24 15:50:12,139 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 53 transitions. Word has length 14 [2018-01-24 15:50:12,139 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-24 15:50:12,139 INFO L432 AbstractCegarLoop]: Abstraction has 50 states and 53 transitions. [2018-01-24 15:50:12,139 INFO L433 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-01-24 15:50:12,140 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 53 transitions. [2018-01-24 15:50:12,140 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2018-01-24 15:50:12,140 INFO L314 BasicCegarLoop]: Found error trace [2018-01-24 15:50:12,140 INFO L322 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-24 15:50:12,141 INFO L371 AbstractCegarLoop]: === Iteration 3 === [fooErr1RequiresViolation, fooErr0AssertViolation, fooErr2RequiresViolation, mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr0RequiresViolation, mainErr4EnsuresViolation]=== [2018-01-24 15:50:12,141 INFO L82 PathProgramCache]: Analyzing trace with hash -267768884, now seen corresponding path program 1 times [2018-01-24 15:50:12,141 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-24 15:50:12,142 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 15:50:12,142 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-24 15:50:12,142 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 15:50:12,142 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-24 15:50:12,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-01-24 15:50:12,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-01-24 15:50:12,200 INFO L381 BasicCegarLoop]: Counterexample might be feasible [2018-01-24 15:50:12,222 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.01 03:50:12 BoogieIcfgContainer [2018-01-24 15:50:12,222 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-01-24 15:50:12,223 INFO L168 Benchmark]: Toolchain (without parser) took 1085.14 ms. Allocated memory was 307.8 MB in the beginning and 468.2 MB in the end (delta: 160.4 MB). Free memory was 268.8 MB in the beginning and 431.8 MB in the end (delta: -163.0 MB). There was no memory consumed. Max. memory is 5.3 GB. [2018-01-24 15:50:12,224 INFO L168 Benchmark]: CDTParser took 0.13 ms. Allocated memory is still 307.8 MB. Free memory is still 273.8 MB. There was no memory consumed. Max. memory is 5.3 GB. [2018-01-24 15:50:12,225 INFO L168 Benchmark]: CACSL2BoogieTranslator took 189.90 ms. Allocated memory is still 307.8 MB. Free memory was 268.8 MB in the beginning and 259.6 MB in the end (delta: 9.2 MB). Peak memory consumption was 9.2 MB. Max. memory is 5.3 GB. [2018-01-24 15:50:12,225 INFO L168 Benchmark]: Boogie Preprocessor took 31.64 ms. Allocated memory is still 307.8 MB. Free memory was 259.6 MB in the beginning and 258.6 MB in the end (delta: 996.3 kB). Peak memory consumption was 996.3 kB. Max. memory is 5.3 GB. [2018-01-24 15:50:12,225 INFO L168 Benchmark]: RCFGBuilder took 240.13 ms. Allocated memory is still 307.8 MB. Free memory was 258.6 MB in the beginning and 241.7 MB in the end (delta: 16.9 MB). Peak memory consumption was 16.9 MB. Max. memory is 5.3 GB. [2018-01-24 15:50:12,226 INFO L168 Benchmark]: TraceAbstraction took 613.81 ms. Allocated memory was 307.8 MB in the beginning and 468.2 MB in the end (delta: 160.4 MB). Free memory was 241.7 MB in the beginning and 431.8 MB in the end (delta: -190.1 MB). There was no memory consumed. Max. memory is 5.3 GB. [2018-01-24 15:50:12,228 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 307.8 MB. Free memory is still 273.8 MB. There was no memory consumed. Max. memory is 5.3 GB. * CACSL2BoogieTranslator took 189.90 ms. Allocated memory is still 307.8 MB. Free memory was 268.8 MB in the beginning and 259.6 MB in the end (delta: 9.2 MB). Peak memory consumption was 9.2 MB. Max. memory is 5.3 GB. * Boogie Preprocessor took 31.64 ms. Allocated memory is still 307.8 MB. Free memory was 259.6 MB in the beginning and 258.6 MB in the end (delta: 996.3 kB). Peak memory consumption was 996.3 kB. Max. memory is 5.3 GB. * RCFGBuilder took 240.13 ms. Allocated memory is still 307.8 MB. Free memory was 258.6 MB in the beginning and 241.7 MB in the end (delta: 16.9 MB). Peak memory consumption was 16.9 MB. Max. memory is 5.3 GB. * TraceAbstraction took 613.81 ms. Allocated memory was 307.8 MB in the beginning and 468.2 MB in the end (delta: 160.4 MB). Free memory was 241.7 MB in the beginning and 431.8 MB in the end (delta: -190.1 MB). There was no memory consumed. Max. memory is 5.3 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 15]: array index can be out of bounds array index can be out of bounds We found a FailurePath: [L21] int i, b[100]; VAL [b={402:0}] [L22] i = 0 VAL [b={402:0}, i=0] [L22] COND TRUE i < 100 VAL [b={402:0}, i=0] [L23] CALL foo(i, b, i + 1) VAL [\old(n)=0, \old(size)=1, b={402:0}] [L13] int a[n], i; [L14] i = 0 VAL [\old(n)=0, \old(size)=1, b={402:0}, b={402:0}, i=0, n=0, size=1] [L14] COND TRUE i < size VAL [\old(n)=0, \old(size)=1, b={402:0}, b={402:0}, i=0, n=0, size=1] [L15] a[i] VAL [\old(n)=0, \old(size)=1, b={402:0}, b={402:0}, i=0, n=0, size=1] - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 49 locations, 8 error locations. UNSAFE Result, 0.5s OverallTime, 3 OverallIterations, 1 TraceHistogramMax, 0.1s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 92 SDtfs, 17 SDslu, 34 SDs, 0 SdLazy, 23 SolverSat, 2 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=50occurred in iteration=2, 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, 2 MinimizatonAttempts, 17 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 42 NumberOfCodeBlocks, 42 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 25 ConstructedInterpolants, 0 QuantifiedInterpolants, 365 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 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/ArraysOfVariableLength_false-valid-deref-write.c_svcomp-DerefFreeMemtrack-32bit-Automizer_Taipan+AI_EQ.epf_AutomizerC.xml/Csv-Benchmark-0-2018-01-24_15-50-12-235.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/ArraysOfVariableLength_false-valid-deref-write.c_svcomp-DerefFreeMemtrack-32bit-Automizer_Taipan+AI_EQ.epf_AutomizerC.xml/Csv-TraceAbstractionBenchmarks-0-2018-01-24_15-50-12-235.csv Received shutdown request...