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_precise.epf -i ../../../trunk/examples/svcomp/ldv-memsafety/memleaks_test18_true-valid-memsafety_true-termination.i -------------------------------------------------------------------------------- This is Ultimate 0.1.23-2f49842 [2018-01-21 06:13:34,493 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-01-21 06:13:34,495 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-01-21 06:13:34,510 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-01-21 06:13:34,510 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-01-21 06:13:34,511 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-01-21 06:13:34,512 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-01-21 06:13:34,514 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-01-21 06:13:34,516 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-01-21 06:13:34,517 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-01-21 06:13:34,518 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-01-21 06:13:34,518 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-01-21 06:13:34,519 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-01-21 06:13:34,520 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-01-21 06:13:34,521 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-01-21 06:13:34,523 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-01-21 06:13:34,526 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-01-21 06:13:34,528 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-01-21 06:13:34,529 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-01-21 06:13:34,530 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-01-21 06:13:34,533 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-01-21 06:13:34,538 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-01-21 06:13:34,538 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-01-21 06:13:34,539 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_precise.epf [2018-01-21 06:13:34,548 INFO L110 SettingsManager]: Loading preferences was successful [2018-01-21 06:13:34,548 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-01-21 06:13:34,549 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-01-21 06:13:34,549 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-01-21 06:13:34,549 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-01-21 06:13:34,549 INFO L133 SettingsManager]: * Weq Fattening=true [2018-01-21 06:13:34,550 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=VPDomain [2018-01-21 06:13:34,550 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-01-21 06:13:34,550 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-01-21 06:13:34,550 INFO L133 SettingsManager]: * sizeof long=4 [2018-01-21 06:13:34,550 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-01-21 06:13:34,550 INFO L133 SettingsManager]: * Check allocation purity=true [2018-01-21 06:13:34,551 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-01-21 06:13:34,551 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-01-21 06:13:34,551 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-01-21 06:13:34,551 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-01-21 06:13:34,551 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-01-21 06:13:34,551 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-01-21 06:13:34,551 INFO L133 SettingsManager]: * sizeof long double=12 [2018-01-21 06:13:34,552 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-01-21 06:13:34,552 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-01-21 06:13:34,552 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-01-21 06:13:34,552 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-01-21 06:13:34,552 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-01-21 06:13:34,552 INFO L133 SettingsManager]: * Add additional assume for each assert=false [2018-01-21 06:13:34,553 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-01-21 06:13:34,553 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-01-21 06:13:34,553 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-01-21 06:13:34,553 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-01-21 06:13:34,553 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-01-21 06:13:34,553 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-01-21 06:13:34,553 INFO L133 SettingsManager]: * Stop after first violation was found=false [2018-01-21 06:13:34,554 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-01-21 06:13:34,554 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-01-21 06:13:34,554 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-01-21 06:13:34,554 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-01-21 06:13:34,554 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-01-21 06:13:34,555 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-01-21 06:13:34,555 INFO L133 SettingsManager]: * TransformationType=HEAP_SEPARATOR [2018-01-21 06:13:34,587 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-01-21 06:13:34,597 INFO L266 ainManager$Toolchain]: [Toolchain 1]: Parser(s) successfully initialized [2018-01-21 06:13:34,601 INFO L222 ainManager$Toolchain]: [Toolchain 1]: Toolchain data selected. [2018-01-21 06:13:34,602 INFO L271 PluginConnector]: Initializing CDTParser... [2018-01-21 06:13:34,602 INFO L276 PluginConnector]: CDTParser initialized [2018-01-21 06:13:34,603 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-memsafety/memleaks_test18_true-valid-memsafety_true-termination.i [2018-01-21 06:13:34,794 INFO L304 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-01-21 06:13:34,799 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-01-21 06:13:34,800 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-01-21 06:13:34,833 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-01-21 06:13:34,838 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-01-21 06:13:34,839 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.01 06:13:34" (1/1) ... [2018-01-21 06:13:34,843 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@ba505b3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.01 06:13:34, skipping insertion in model container [2018-01-21 06:13:34,843 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.01 06:13:34" (1/1) ... [2018-01-21 06:13:34,863 INFO L153 Dispatcher]: Using SV-COMP mode [2018-01-21 06:13:34,915 INFO L153 Dispatcher]: Using SV-COMP mode [2018-01-21 06:13:35,038 INFO L450 PostProcessor]: Settings: Checked method=main [2018-01-21 06:13:35,058 INFO L450 PostProcessor]: Settings: Checked method=main [2018-01-21 06:13:35,066 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.01 06:13:35 WrapperNode [2018-01-21 06:13:35,067 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-01-21 06:13:35,068 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-01-21 06:13:35,068 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-01-21 06:13:35,068 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-01-21 06:13:35,083 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.01 06:13:35" (1/1) ... [2018-01-21 06:13:35,083 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.01 06:13:35" (1/1) ... [2018-01-21 06:13:35,091 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.01 06:13:35" (1/1) ... [2018-01-21 06:13:35,092 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.01 06:13:35" (1/1) ... [2018-01-21 06:13:35,096 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.01 06:13:35" (1/1) ... [2018-01-21 06:13:35,099 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.01 06:13:35" (1/1) ... [2018-01-21 06:13:35,100 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.01 06:13:35" (1/1) ... [2018-01-21 06:13:35,102 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-01-21 06:13:35,103 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-01-21 06:13:35,103 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-01-21 06:13:35,103 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-01-21 06:13:35,104 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.01 06:13:35" (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 06:13:35,151 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-01-21 06:13:35,151 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-01-21 06:13:35,151 INFO L136 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2018-01-21 06:13:35,151 INFO L136 BoogieDeclarations]: Found implementation of procedure entry_point [2018-01-21 06:13:35,152 INFO L136 BoogieDeclarations]: Found implementation of procedure main [2018-01-21 06:13:35,152 INFO L128 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2018-01-21 06:13:35,152 INFO L128 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2018-01-21 06:13:35,152 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.free [2018-01-21 06:13:35,152 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-01-21 06:13:35,152 INFO L128 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-01-21 06:13:35,152 INFO L128 BoogieDeclarations]: Found specification of procedure malloc [2018-01-21 06:13:35,152 INFO L128 BoogieDeclarations]: Found specification of procedure free [2018-01-21 06:13:35,152 INFO L128 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2018-01-21 06:13:35,153 INFO L128 BoogieDeclarations]: Found specification of procedure ldv_malloc [2018-01-21 06:13:35,153 INFO L128 BoogieDeclarations]: Found specification of procedure entry_point [2018-01-21 06:13:35,153 INFO L128 BoogieDeclarations]: Found specification of procedure main [2018-01-21 06:13:35,153 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-01-21 06:13:35,153 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-01-21 06:13:35,362 INFO L257 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-01-21 06:13:35,362 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.01 06:13:35 BoogieIcfgContainer [2018-01-21 06:13:35,362 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-01-21 06:13:35,363 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-01-21 06:13:35,363 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-01-21 06:13:35,365 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-01-21 06:13:35,365 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.01 06:13:34" (1/3) ... [2018-01-21 06:13:35,366 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@73ca388 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.01 06:13:35, skipping insertion in model container [2018-01-21 06:13:35,366 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.01 06:13:35" (2/3) ... [2018-01-21 06:13:35,366 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@73ca388 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.01 06:13:35, skipping insertion in model container [2018-01-21 06:13:35,366 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.01 06:13:35" (3/3) ... [2018-01-21 06:13:35,368 INFO L105 eAbstractionObserver]: Analyzing ICFG memleaks_test18_true-valid-memsafety_true-termination.i [2018-01-21 06:13:35,376 INFO L130 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-01-21 06:13:35,382 INFO L142 ceAbstractionStarter]: Appying trace abstraction to program that has 5 error locations. [2018-01-21 06:13:35,431 INFO L322 AbstractCegarLoop]: Interprodecural is true [2018-01-21 06:13:35,432 INFO L323 AbstractCegarLoop]: Hoare is true [2018-01-21 06:13:35,432 INFO L324 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-01-21 06:13:35,432 INFO L325 AbstractCegarLoop]: Backedges is TWOTRACK [2018-01-21 06:13:35,432 INFO L326 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-01-21 06:13:35,432 INFO L327 AbstractCegarLoop]: Difference is false [2018-01-21 06:13:35,433 INFO L328 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-01-21 06:13:35,433 INFO L333 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == ldv_mallocErr0EnsuresViolation======== [2018-01-21 06:13:35,434 INFO L87 2NestedWordAutomaton]: Mode: main mode - execution starts in main procedure [2018-01-21 06:13:35,455 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states. [2018-01-21 06:13:35,462 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2018-01-21 06:13:35,462 INFO L314 BasicCegarLoop]: Found error trace [2018-01-21 06:13:35,463 INFO L322 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-21 06:13:35,464 INFO L371 AbstractCegarLoop]: === Iteration 1 === [ldv_mallocErr0EnsuresViolation]=== [2018-01-21 06:13:35,469 INFO L82 PathProgramCache]: Analyzing trace with hash 2025112334, now seen corresponding path program 1 times [2018-01-21 06:13:35,472 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-21 06:13:35,526 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-21 06:13:35,526 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-21 06:13:35,526 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-21 06:13:35,526 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-21 06:13:35,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-21 06:13:35,580 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-21 06:13:35,631 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 06:13:35,633 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-21 06:13:35,633 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-01-21 06:13:35,633 INFO L252 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-01-21 06:13:35,635 INFO L409 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-01-21 06:13:35,646 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-01-21 06:13:35,647 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-01-21 06:13:35,649 INFO L87 Difference]: Start difference. First operand 42 states. Second operand 3 states. [2018-01-21 06:13:35,851 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-21 06:13:35,851 INFO L93 Difference]: Finished difference Result 66 states and 78 transitions. [2018-01-21 06:13:35,853 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-01-21 06:13:35,854 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 11 [2018-01-21 06:13:35,855 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-21 06:13:35,867 INFO L225 Difference]: With dead ends: 66 [2018-01-21 06:13:35,867 INFO L226 Difference]: Without dead ends: 25 [2018-01-21 06:13:35,872 INFO L525 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-01-21 06:13:35,890 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states. [2018-01-21 06:13:35,908 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 25. [2018-01-21 06:13:35,909 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25 states. [2018-01-21 06:13:35,910 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 27 transitions. [2018-01-21 06:13:35,911 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 27 transitions. Word has length 11 [2018-01-21 06:13:35,911 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-21 06:13:35,911 INFO L432 AbstractCegarLoop]: Abstraction has 25 states and 27 transitions. [2018-01-21 06:13:35,911 INFO L433 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-01-21 06:13:35,912 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 27 transitions. [2018-01-21 06:13:35,913 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2018-01-21 06:13:35,913 INFO L314 BasicCegarLoop]: Found error trace [2018-01-21 06:13:35,913 INFO L322 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-21 06:13:35,913 INFO L371 AbstractCegarLoop]: === Iteration 2 === [ldv_mallocErr0EnsuresViolation]=== [2018-01-21 06:13:35,913 INFO L82 PathProgramCache]: Analyzing trace with hash 512674928, now seen corresponding path program 1 times [2018-01-21 06:13:35,913 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-21 06:13:35,914 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-21 06:13:35,915 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-21 06:13:35,915 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-21 06:13:35,915 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-21 06:13:35,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-01-21 06:13:35,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-01-21 06:13:35,974 INFO L381 BasicCegarLoop]: Counterexample might be feasible [2018-01-21 06:13:35,981 WARN L343 cessorBacktranslator]: Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) [2018-01-21 06:13:35,983 WARN L343 cessorBacktranslator]: Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) [2018-01-21 06:13:35,994 INFO L322 AbstractCegarLoop]: Interprodecural is true [2018-01-21 06:13:35,994 INFO L323 AbstractCegarLoop]: Hoare is true [2018-01-21 06:13:35,994 INFO L324 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-01-21 06:13:35,994 INFO L325 AbstractCegarLoop]: Backedges is TWOTRACK [2018-01-21 06:13:35,994 INFO L326 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-01-21 06:13:35,994 INFO L327 AbstractCegarLoop]: Difference is false [2018-01-21 06:13:35,994 INFO L328 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-01-21 06:13:35,995 INFO L333 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == ULTIMATE.initErr0EnsuresViolation======== [2018-01-21 06:13:35,995 INFO L87 2NestedWordAutomaton]: Mode: main mode - execution starts in main procedure [2018-01-21 06:13:35,996 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states. [2018-01-21 06:13:35,996 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2018-01-21 06:13:35,996 INFO L314 BasicCegarLoop]: Found error trace [2018-01-21 06:13:35,996 INFO L322 BasicCegarLoop]: trace histogram [1, 1, 1] [2018-01-21 06:13:35,996 INFO L371 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.initErr0EnsuresViolation]=== [2018-01-21 06:13:35,996 INFO L82 PathProgramCache]: Analyzing trace with hash 100330, now seen corresponding path program 1 times [2018-01-21 06:13:35,997 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-21 06:13:35,998 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-21 06:13:35,998 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-21 06:13:35,999 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-21 06:13:35,999 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-21 06:13:36,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-01-21 06:13:36,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-01-21 06:13:36,009 INFO L381 BasicCegarLoop]: Counterexample might be feasible [2018-01-21 06:13:36,010 WARN L343 cessorBacktranslator]: Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) [2018-01-21 06:13:36,012 INFO L322 AbstractCegarLoop]: Interprodecural is true [2018-01-21 06:13:36,012 INFO L323 AbstractCegarLoop]: Hoare is true [2018-01-21 06:13:36,012 INFO L324 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-01-21 06:13:36,013 INFO L325 AbstractCegarLoop]: Backedges is TWOTRACK [2018-01-21 06:13:36,013 INFO L326 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-01-21 06:13:36,013 INFO L327 AbstractCegarLoop]: Difference is false [2018-01-21 06:13:36,013 INFO L328 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-01-21 06:13:36,013 INFO L333 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == ULTIMATE.startErr0EnsuresViolation======== [2018-01-21 06:13:36,013 INFO L87 2NestedWordAutomaton]: Mode: main mode - execution starts in main procedure [2018-01-21 06:13:36,015 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states. [2018-01-21 06:13:36,016 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2018-01-21 06:13:36,016 INFO L314 BasicCegarLoop]: Found error trace [2018-01-21 06:13:36,016 INFO L322 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-21 06:13:36,017 INFO L371 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0EnsuresViolation]=== [2018-01-21 06:13:36,017 INFO L82 PathProgramCache]: Analyzing trace with hash -1602503307, now seen corresponding path program 1 times [2018-01-21 06:13:36,017 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-21 06:13:36,018 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-21 06:13:36,019 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-21 06:13:36,019 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-21 06:13:36,019 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-21 06:13:36,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-01-21 06:13:36,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-01-21 06:13:36,050 INFO L381 BasicCegarLoop]: Counterexample might be feasible [2018-01-21 06:13:36,052 WARN L343 cessorBacktranslator]: Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) [2018-01-21 06:13:36,053 WARN L343 cessorBacktranslator]: Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) [2018-01-21 06:13:36,054 WARN L343 cessorBacktranslator]: Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) [2018-01-21 06:13:36,054 WARN L343 cessorBacktranslator]: Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) [2018-01-21 06:13:36,054 WARN L343 cessorBacktranslator]: Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) [2018-01-21 06:13:36,058 INFO L322 AbstractCegarLoop]: Interprodecural is true [2018-01-21 06:13:36,058 INFO L323 AbstractCegarLoop]: Hoare is true [2018-01-21 06:13:36,058 INFO L324 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-01-21 06:13:36,058 INFO L325 AbstractCegarLoop]: Backedges is TWOTRACK [2018-01-21 06:13:36,058 INFO L326 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-01-21 06:13:36,058 INFO L327 AbstractCegarLoop]: Difference is false [2018-01-21 06:13:36,059 INFO L328 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-01-21 06:13:36,059 INFO L333 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == mainErr0EnsuresViolation======== [2018-01-21 06:13:36,059 INFO L87 2NestedWordAutomaton]: Mode: main mode - execution starts in main procedure [2018-01-21 06:13:36,060 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states. [2018-01-21 06:13:36,061 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2018-01-21 06:13:36,062 INFO L314 BasicCegarLoop]: Found error trace [2018-01-21 06:13:36,062 INFO L322 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-21 06:13:36,062 INFO L371 AbstractCegarLoop]: === Iteration 1 === [mainErr0EnsuresViolation]=== [2018-01-21 06:13:36,062 INFO L82 PathProgramCache]: Analyzing trace with hash -1226247184, now seen corresponding path program 1 times [2018-01-21 06:13:36,062 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-21 06:13:36,064 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-21 06:13:36,064 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-21 06:13:36,064 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-21 06:13:36,064 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-21 06:13:36,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-21 06:13:36,076 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-21 06:13:36,125 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 06:13:36,125 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-21 06:13:36,126 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-01-21 06:13:36,126 INFO L252 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-01-21 06:13:36,126 INFO L409 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-01-21 06:13:36,126 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-01-21 06:13:36,127 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-01-21 06:13:36,127 INFO L87 Difference]: Start difference. First operand 42 states. Second operand 3 states. [2018-01-21 06:13:36,200 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-21 06:13:36,201 INFO L93 Difference]: Finished difference Result 66 states and 78 transitions. [2018-01-21 06:13:36,201 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-01-21 06:13:36,201 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 17 [2018-01-21 06:13:36,202 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-21 06:13:36,202 INFO L225 Difference]: With dead ends: 66 [2018-01-21 06:13:36,202 INFO L226 Difference]: Without dead ends: 0 [2018-01-21 06:13:36,203 INFO L525 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-01-21 06:13:36,203 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-01-21 06:13:36,203 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-01-21 06:13:36,203 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-01-21 06:13:36,204 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-01-21 06:13:36,204 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 17 [2018-01-21 06:13:36,204 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-21 06:13:36,204 INFO L432 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-01-21 06:13:36,204 INFO L433 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-01-21 06:13:36,204 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-01-21 06:13:36,204 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-01-21 06:13:36,207 INFO L322 AbstractCegarLoop]: Interprodecural is true [2018-01-21 06:13:36,207 INFO L323 AbstractCegarLoop]: Hoare is true [2018-01-21 06:13:36,207 INFO L324 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-01-21 06:13:36,207 INFO L325 AbstractCegarLoop]: Backedges is TWOTRACK [2018-01-21 06:13:36,207 INFO L326 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-01-21 06:13:36,207 INFO L327 AbstractCegarLoop]: Difference is false [2018-01-21 06:13:36,207 INFO L328 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-01-21 06:13:36,208 INFO L333 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == entry_pointErr0EnsuresViolation======== [2018-01-21 06:13:36,208 INFO L87 2NestedWordAutomaton]: Mode: main mode - execution starts in main procedure [2018-01-21 06:13:36,209 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states. [2018-01-21 06:13:36,209 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2018-01-21 06:13:36,210 INFO L314 BasicCegarLoop]: Found error trace [2018-01-21 06:13:36,210 INFO L322 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-21 06:13:36,210 INFO L371 AbstractCegarLoop]: === Iteration 1 === [entry_pointErr0EnsuresViolation]=== [2018-01-21 06:13:36,210 INFO L82 PathProgramCache]: Analyzing trace with hash -1149878089, now seen corresponding path program 1 times [2018-01-21 06:13:36,210 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-21 06:13:36,212 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-21 06:13:36,212 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-21 06:13:36,212 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-21 06:13:36,212 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-21 06:13:36,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-21 06:13:36,222 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-21 06:13:36,247 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 06:13:36,247 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-21 06:13:36,247 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-01-21 06:13:36,248 INFO L252 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-01-21 06:13:36,248 INFO L409 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-01-21 06:13:36,248 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-01-21 06:13:36,248 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-01-21 06:13:36,249 INFO L87 Difference]: Start difference. First operand 42 states. Second operand 3 states. [2018-01-21 06:13:36,292 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-21 06:13:36,292 INFO L93 Difference]: Finished difference Result 66 states and 78 transitions. [2018-01-21 06:13:36,293 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-01-21 06:13:36,293 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 15 [2018-01-21 06:13:36,293 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-21 06:13:36,293 INFO L225 Difference]: With dead ends: 66 [2018-01-21 06:13:36,294 INFO L226 Difference]: Without dead ends: 39 [2018-01-21 06:13:36,294 INFO L525 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-01-21 06:13:36,294 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2018-01-21 06:13:36,298 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 33. [2018-01-21 06:13:36,298 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33 states. [2018-01-21 06:13:36,299 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 37 transitions. [2018-01-21 06:13:36,299 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 37 transitions. Word has length 15 [2018-01-21 06:13:36,301 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-21 06:13:36,301 INFO L432 AbstractCegarLoop]: Abstraction has 33 states and 37 transitions. [2018-01-21 06:13:36,301 INFO L433 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-01-21 06:13:36,301 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 37 transitions. [2018-01-21 06:13:36,302 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2018-01-21 06:13:36,302 INFO L314 BasicCegarLoop]: Found error trace [2018-01-21 06:13:36,302 INFO L322 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-21 06:13:36,302 INFO L371 AbstractCegarLoop]: === Iteration 2 === [entry_pointErr0EnsuresViolation]=== [2018-01-21 06:13:36,303 INFO L82 PathProgramCache]: Analyzing trace with hash 1096214288, now seen corresponding path program 1 times [2018-01-21 06:13:36,303 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-21 06:13:36,304 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-21 06:13:36,305 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-21 06:13:36,305 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-21 06:13:36,305 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-21 06:13:36,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-21 06:13:36,318 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-21 06:13:36,366 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 06:13:36,366 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-21 06:13:36,366 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-01-21 06:13:36,366 INFO L252 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-01-21 06:13:36,366 INFO L409 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-01-21 06:13:36,367 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-01-21 06:13:36,367 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-01-21 06:13:36,367 INFO L87 Difference]: Start difference. First operand 33 states and 37 transitions. Second operand 5 states. [2018-01-21 06:13:36,386 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-21 06:13:36,386 INFO L93 Difference]: Finished difference Result 60 states and 68 transitions. [2018-01-21 06:13:36,387 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-01-21 06:13:36,387 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 21 [2018-01-21 06:13:36,387 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-21 06:13:36,389 INFO L225 Difference]: With dead ends: 60 [2018-01-21 06:13:36,389 INFO L226 Difference]: Without dead ends: 35 [2018-01-21 06:13:36,390 INFO L525 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-01-21 06:13:36,390 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2018-01-21 06:13:36,395 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 35. [2018-01-21 06:13:36,395 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35 states. [2018-01-21 06:13:36,396 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 39 transitions. [2018-01-21 06:13:36,396 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 39 transitions. Word has length 21 [2018-01-21 06:13:36,397 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-21 06:13:36,397 INFO L432 AbstractCegarLoop]: Abstraction has 35 states and 39 transitions. [2018-01-21 06:13:36,397 INFO L433 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-01-21 06:13:36,397 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 39 transitions. [2018-01-21 06:13:36,398 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2018-01-21 06:13:36,398 INFO L314 BasicCegarLoop]: Found error trace [2018-01-21 06:13:36,398 INFO L322 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-21 06:13:36,398 INFO L371 AbstractCegarLoop]: === Iteration 3 === [entry_pointErr0EnsuresViolation]=== [2018-01-21 06:13:36,399 INFO L82 PathProgramCache]: Analyzing trace with hash -393863694, now seen corresponding path program 1 times [2018-01-21 06:13:36,399 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-21 06:13:36,400 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-21 06:13:36,400 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-21 06:13:36,400 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-21 06:13:36,400 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-21 06:13:36,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-21 06:13:36,413 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-21 06:13:36,540 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 06:13:36,541 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-21 06:13:36,541 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2018-01-21 06:13:36,541 INFO L252 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-01-21 06:13:36,542 INFO L409 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-01-21 06:13:36,542 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-01-21 06:13:36,542 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2018-01-21 06:13:36,542 INFO L87 Difference]: Start difference. First operand 35 states and 39 transitions. Second operand 8 states. [2018-01-21 06:13:36,742 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-21 06:13:36,742 INFO L93 Difference]: Finished difference Result 40 states and 45 transitions. [2018-01-21 06:13:36,742 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-01-21 06:13:36,742 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 23 [2018-01-21 06:13:36,743 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-21 06:13:36,743 INFO L225 Difference]: With dead ends: 40 [2018-01-21 06:13:36,743 INFO L226 Difference]: Without dead ends: 0 [2018-01-21 06:13:36,743 INFO L525 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=32, Invalid=100, Unknown=0, NotChecked=0, Total=132 [2018-01-21 06:13:36,744 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-01-21 06:13:36,744 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-01-21 06:13:36,744 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-01-21 06:13:36,744 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-01-21 06:13:36,745 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 23 [2018-01-21 06:13:36,745 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-21 06:13:36,745 INFO L432 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-01-21 06:13:36,745 INFO L433 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-01-21 06:13:36,745 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-01-21 06:13:36,745 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-01-21 06:13:36,747 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.01 06:13:36 BoogieIcfgContainer [2018-01-21 06:13:36,748 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-01-21 06:13:36,748 INFO L168 Benchmark]: Toolchain (without parser) took 1954.32 ms. Allocated memory was 303.6 MB in the beginning and 465.0 MB in the end (delta: 161.5 MB). Free memory was 260.9 MB in the beginning and 347.4 MB in the end (delta: -86.5 MB). Peak memory consumption was 75.0 MB. Max. memory is 5.3 GB. [2018-01-21 06:13:36,750 INFO L168 Benchmark]: CDTParser took 0.12 ms. Allocated memory is still 303.6 MB. Free memory is still 267.9 MB. There was no memory consumed. Max. memory is 5.3 GB. [2018-01-21 06:13:36,750 INFO L168 Benchmark]: CACSL2BoogieTranslator took 267.55 ms. Allocated memory is still 303.6 MB. Free memory was 260.9 MB in the beginning and 247.8 MB in the end (delta: 13.1 MB). Peak memory consumption was 13.1 MB. Max. memory is 5.3 GB. [2018-01-21 06:13:36,750 INFO L168 Benchmark]: Boogie Preprocessor took 35.14 ms. Allocated memory is still 303.6 MB. Free memory was 247.8 MB in the beginning and 245.8 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 5.3 GB. [2018-01-21 06:13:36,750 INFO L168 Benchmark]: RCFGBuilder took 259.21 ms. Allocated memory is still 303.6 MB. Free memory was 245.8 MB in the beginning and 229.2 MB in the end (delta: 16.7 MB). Peak memory consumption was 16.7 MB. Max. memory is 5.3 GB. [2018-01-21 06:13:36,751 INFO L168 Benchmark]: TraceAbstraction took 1384.82 ms. Allocated memory was 303.6 MB in the beginning and 465.0 MB in the end (delta: 161.5 MB). Free memory was 229.2 MB in the beginning and 347.4 MB in the end (delta: -118.2 MB). Peak memory consumption was 43.3 MB. Max. memory is 5.3 GB. [2018-01-21 06:13:36,752 INFO L344 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12 ms. Allocated memory is still 303.6 MB. Free memory is still 267.9 MB. There was no memory consumed. Max. memory is 5.3 GB. * CACSL2BoogieTranslator took 267.55 ms. Allocated memory is still 303.6 MB. Free memory was 260.9 MB in the beginning and 247.8 MB in the end (delta: 13.1 MB). Peak memory consumption was 13.1 MB. Max. memory is 5.3 GB. * Boogie Preprocessor took 35.14 ms. Allocated memory is still 303.6 MB. Free memory was 247.8 MB in the beginning and 245.8 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 5.3 GB. * RCFGBuilder took 259.21 ms. Allocated memory is still 303.6 MB. Free memory was 245.8 MB in the beginning and 229.2 MB in the end (delta: 16.7 MB). Peak memory consumption was 16.7 MB. Max. memory is 5.3 GB. * TraceAbstraction took 1384.82 ms. Allocated memory was 303.6 MB in the beginning and 465.0 MB in the end (delta: 161.5 MB). Free memory was 229.2 MB in the beginning and 347.4 MB in the end (delta: -118.2 MB). Peak memory consumption was 43.3 MB. 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) - 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: 1072]: not all allocated memory was freed not all allocated memory was freed We found a FailurePath: [L1461] CALL entry_point() [L1439] int len = 10; VAL [len=10] [L1440] CALL ldv_malloc(sizeof(struct A18*)*len) VAL [\old(size)=40] [L1073] COND TRUE __VERIFIER_nondet_int() [L1074] EXPR, FCALL malloc(size) VAL [\old(size)=40, malloc(size)={42:0}, size=40] [L1074] return malloc(size); VAL [\old(size)=40, \result={42:0}, malloc(size)={42:0}, size=40] - StatisticsResult: Ultimate Automizer benchmark data for error location: ldv_mallocErr0EnsuresViolation CFG has 5 procedures, 42 locations, 5 error locations. UNSAFE Result, 0.5s OverallTime, 2 OverallIterations, 1 TraceHistogramMax, 0.2s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 36 SDtfs, 21 SDslu, 7 SDs, 0 SdLazy, 20 SolverSat, 13 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=42occurred 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, 24 NumberOfCodeBlocks, 24 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 10 ConstructedInterpolants, 0 QuantifiedInterpolants, 160 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 5 procedures, 42 locations, 5 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=42occurred 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: [L1461] CALL entry_point() [L1439] int len = 10; VAL [len=10] [L1440] CALL, EXPR ldv_malloc(sizeof(struct A18*)*len) VAL [\old(size)=40] [L1073] COND FALSE !(__VERIFIER_nondet_int()) [L1076] RET return 0; VAL [\old(size)=40, \result={0:0}, size=40] [L1440] EXPR ldv_malloc(sizeof(struct A18*)*len) VAL [ldv_malloc(sizeof(struct A18*)*len)={0:0}, len=10] [L1440] struct A18 **array = (struct A18 **)ldv_malloc(sizeof(struct A18*)*len); [L1441] COND FALSE, RET !(\read(**array)) VAL [array={0:0}, len=10] [L1461] entry_point() - StatisticsResult: Ultimate Automizer benchmark data for error location: ULTIMATE.startErr0EnsuresViolation CFG has 5 procedures, 42 locations, 5 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=42occurred 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, 19 NumberOfCodeBlocks, 19 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: 1460]: 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 5 procedures, 42 locations, 5 error locations. SAFE Result, 0.1s OverallTime, 1 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 36 SDtfs, 16 SDslu, 7 SDs, 0 SdLazy, 20 SolverSat, 9 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 6 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=42occurred 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, 17 NumberOfCodeBlocks, 17 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 16 ConstructedInterpolants, 0 QuantifiedInterpolants, 640 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: 1438]: 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: entry_pointErr0EnsuresViolation CFG has 5 procedures, 42 locations, 5 error locations. SAFE Result, 0.5s OverallTime, 3 OverallIterations, 1 TraceHistogramMax, 0.2s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 96 SDtfs, 49 SDslu, 192 SDs, 0 SdLazy, 128 SolverSat, 23 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 22 GetRequests, 7 SyntacticMatches, 1 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=42occurred 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, 3 MinimizatonAttempts, 6 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 59 NumberOfCodeBlocks, 59 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 56 ConstructedInterpolants, 0 QuantifiedInterpolants, 4122 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 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/memleaks_test18_true-valid-memsafety_true-termination.i_mempurity-32bit-Automizer_Taipan+AI_EQ_precise.epf_AutomizerC.xml/Csv-Benchmark-0-2018-01-21_06-13-36-763.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/memleaks_test18_true-valid-memsafety_true-termination.i_mempurity-32bit-Automizer_Taipan+AI_EQ_precise.epf_AutomizerC.xml/Csv-TraceAbstractionBenchmarks-0-2018-01-21_06-13-36-763.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/memleaks_test18_true-valid-memsafety_true-termination.i_mempurity-32bit-Automizer_Taipan+AI_EQ_precise.epf_AutomizerC.xml/Csv-TraceAbstractionBenchmarks-1-2018-01-21_06-13-36-763.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/memleaks_test18_true-valid-memsafety_true-termination.i_mempurity-32bit-Automizer_Taipan+AI_EQ_precise.epf_AutomizerC.xml/Csv-TraceAbstractionBenchmarks-2-2018-01-21_06-13-36-763.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/memleaks_test18_true-valid-memsafety_true-termination.i_mempurity-32bit-Automizer_Taipan+AI_EQ_precise.epf_AutomizerC.xml/Csv-TraceAbstractionBenchmarks-3-2018-01-21_06-13-36-763.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/memleaks_test18_true-valid-memsafety_true-termination.i_mempurity-32bit-Automizer_Taipan+AI_EQ_precise.epf_AutomizerC.xml/Csv-TraceAbstractionBenchmarks-4-2018-01-21_06-13-36-763.csv Received shutdown request...