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_1_false-valid-memtrack_true-termination.i -------------------------------------------------------------------------------- This is Ultimate 0.1.23-2f49842 [2018-01-21 06:12:13,421 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-01-21 06:12:13,423 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-01-21 06:12:13,436 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-01-21 06:12:13,436 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-01-21 06:12:13,437 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-01-21 06:12:13,438 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-01-21 06:12:13,439 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-01-21 06:12:13,441 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-01-21 06:12:13,441 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-01-21 06:12:13,442 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-01-21 06:12:13,442 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-01-21 06:12:13,443 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-01-21 06:12:13,443 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-01-21 06:12:13,444 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-01-21 06:12:13,446 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-01-21 06:12:13,449 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-01-21 06:12:13,451 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-01-21 06:12:13,452 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-01-21 06:12:13,453 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-01-21 06:12:13,455 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-01-21 06:12:13,456 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-01-21 06:12:13,456 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-01-21 06:12:13,457 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-01-21 06:12:13,458 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-01-21 06:12:13,459 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-01-21 06:12:13,459 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-01-21 06:12:13,460 INFO L177 SettingsManager]: PEA to Boogie provides no preferences, ignoring... [2018-01-21 06:12:13,460 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-01-21 06:12:13,460 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-01-21 06:12:13,461 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-01-21 06:12:13,461 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 06:12:13,492 INFO L110 SettingsManager]: Loading preferences was successful [2018-01-21 06:12:13,492 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-01-21 06:12:13,493 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-01-21 06:12:13,493 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-01-21 06:12:13,494 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-01-21 06:12:13,494 INFO L133 SettingsManager]: * Weq Fattening=true [2018-01-21 06:12:13,494 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=VPDomain [2018-01-21 06:12:13,494 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-01-21 06:12:13,495 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-01-21 06:12:13,495 INFO L133 SettingsManager]: * sizeof long=4 [2018-01-21 06:12:13,495 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-01-21 06:12:13,496 INFO L133 SettingsManager]: * Check allocation purity=true [2018-01-21 06:12:13,496 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-01-21 06:12:13,496 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-01-21 06:12:13,496 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-01-21 06:12:13,496 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-01-21 06:12:13,496 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-01-21 06:12:13,497 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-01-21 06:12:13,497 INFO L133 SettingsManager]: * sizeof long double=12 [2018-01-21 06:12:13,497 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-01-21 06:12:13,497 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-01-21 06:12:13,498 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-01-21 06:12:13,498 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-01-21 06:12:13,498 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-01-21 06:12:13,498 INFO L133 SettingsManager]: * Add additional assume for each assert=false [2018-01-21 06:12:13,498 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-01-21 06:12:13,499 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-01-21 06:12:13,499 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-01-21 06:12:13,499 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-01-21 06:12:13,499 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-01-21 06:12:13,499 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-01-21 06:12:13,500 INFO L133 SettingsManager]: * Stop after first violation was found=false [2018-01-21 06:12:13,500 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-01-21 06:12:13,500 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-01-21 06:12:13,500 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-01-21 06:12:13,500 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-01-21 06:12:13,500 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-01-21 06:12:13,501 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-01-21 06:12:13,502 INFO L133 SettingsManager]: * TransformationType=HEAP_SEPARATOR [2018-01-21 06:12:13,536 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-01-21 06:12:13,546 INFO L266 ainManager$Toolchain]: [Toolchain 1]: Parser(s) successfully initialized [2018-01-21 06:12:13,550 INFO L222 ainManager$Toolchain]: [Toolchain 1]: Toolchain data selected. [2018-01-21 06:12:13,551 INFO L271 PluginConnector]: Initializing CDTParser... [2018-01-21 06:12:13,551 INFO L276 PluginConnector]: CDTParser initialized [2018-01-21 06:12:13,552 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-memsafety/memleaks_test18_1_false-valid-memtrack_true-termination.i [2018-01-21 06:12:13,745 INFO L304 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-01-21 06:12:13,749 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-01-21 06:12:13,750 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-01-21 06:12:13,750 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-01-21 06:12:13,755 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-01-21 06:12:13,756 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.01 06:12:13" (1/1) ... [2018-01-21 06:12:13,758 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4fc29a6e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.01 06:12:13, skipping insertion in model container [2018-01-21 06:12:13,758 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.01 06:12:13" (1/1) ... [2018-01-21 06:12:13,771 INFO L153 Dispatcher]: Using SV-COMP mode [2018-01-21 06:12:13,819 INFO L153 Dispatcher]: Using SV-COMP mode [2018-01-21 06:12:13,927 INFO L450 PostProcessor]: Settings: Checked method=main [2018-01-21 06:12:13,943 INFO L450 PostProcessor]: Settings: Checked method=main [2018-01-21 06:12:13,951 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.01 06:12:13 WrapperNode [2018-01-21 06:12:13,951 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-01-21 06:12:13,951 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-01-21 06:12:13,952 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-01-21 06:12:13,952 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-01-21 06:12:13,965 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.01 06:12:13" (1/1) ... [2018-01-21 06:12:13,965 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.01 06:12:13" (1/1) ... [2018-01-21 06:12:13,977 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.01 06:12:13" (1/1) ... [2018-01-21 06:12:13,977 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.01 06:12:13" (1/1) ... [2018-01-21 06:12:13,980 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.01 06:12:13" (1/1) ... [2018-01-21 06:12:13,983 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.01 06:12:13" (1/1) ... [2018-01-21 06:12:13,984 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.01 06:12:13" (1/1) ... [2018-01-21 06:12:13,985 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-01-21 06:12:13,986 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-01-21 06:12:13,986 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-01-21 06:12:13,986 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-01-21 06:12:13,987 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.01 06:12:13" (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 06:12:14,031 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-01-21 06:12:14,032 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-01-21 06:12:14,032 INFO L136 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2018-01-21 06:12:14,032 INFO L136 BoogieDeclarations]: Found implementation of procedure entry_point [2018-01-21 06:12:14,032 INFO L136 BoogieDeclarations]: Found implementation of procedure main [2018-01-21 06:12:14,032 INFO L128 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2018-01-21 06:12:14,032 INFO L128 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2018-01-21 06:12:14,032 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.free [2018-01-21 06:12:14,032 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-01-21 06:12:14,033 INFO L128 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-01-21 06:12:14,033 INFO L128 BoogieDeclarations]: Found specification of procedure malloc [2018-01-21 06:12:14,033 INFO L128 BoogieDeclarations]: Found specification of procedure free [2018-01-21 06:12:14,033 INFO L128 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2018-01-21 06:12:14,033 INFO L128 BoogieDeclarations]: Found specification of procedure ldv_malloc [2018-01-21 06:12:14,033 INFO L128 BoogieDeclarations]: Found specification of procedure entry_point [2018-01-21 06:12:14,033 INFO L128 BoogieDeclarations]: Found specification of procedure main [2018-01-21 06:12:14,033 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-01-21 06:12:14,033 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-01-21 06:12:14,218 INFO L257 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-01-21 06:12:14,218 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.01 06:12:14 BoogieIcfgContainer [2018-01-21 06:12:14,218 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-01-21 06:12:14,219 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-01-21 06:12:14,219 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-01-21 06:12:14,221 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-01-21 06:12:14,221 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.01 06:12:13" (1/3) ... [2018-01-21 06:12:14,222 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5c7bf6ba and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.01 06:12:14, skipping insertion in model container [2018-01-21 06:12:14,222 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.01 06:12:13" (2/3) ... [2018-01-21 06:12:14,222 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5c7bf6ba and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.01 06:12:14, skipping insertion in model container [2018-01-21 06:12:14,222 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.01 06:12:14" (3/3) ... [2018-01-21 06:12:14,224 INFO L105 eAbstractionObserver]: Analyzing ICFG memleaks_test18_1_false-valid-memtrack_true-termination.i [2018-01-21 06:12:14,230 INFO L130 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-01-21 06:12:14,235 INFO L142 ceAbstractionStarter]: Appying trace abstraction to program that has 5 error locations. [2018-01-21 06:12:14,286 INFO L322 AbstractCegarLoop]: Interprodecural is true [2018-01-21 06:12:14,286 INFO L323 AbstractCegarLoop]: Hoare is true [2018-01-21 06:12:14,286 INFO L324 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-01-21 06:12:14,286 INFO L325 AbstractCegarLoop]: Backedges is TWOTRACK [2018-01-21 06:12:14,287 INFO L326 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-01-21 06:12:14,287 INFO L327 AbstractCegarLoop]: Difference is false [2018-01-21 06:12:14,287 INFO L328 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-01-21 06:12:14,287 INFO L333 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == ldv_mallocErr0EnsuresViolation======== [2018-01-21 06:12:14,288 INFO L87 2NestedWordAutomaton]: Mode: main mode - execution starts in main procedure [2018-01-21 06:12:14,308 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states. [2018-01-21 06:12:14,314 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2018-01-21 06:12:14,315 INFO L314 BasicCegarLoop]: Found error trace [2018-01-21 06:12:14,316 INFO L322 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-21 06:12:14,316 INFO L371 AbstractCegarLoop]: === Iteration 1 === [ldv_mallocErr0EnsuresViolation]=== [2018-01-21 06:12:14,321 INFO L82 PathProgramCache]: Analyzing trace with hash -560952463, now seen corresponding path program 1 times [2018-01-21 06:12:14,324 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-21 06:12:14,374 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-21 06:12:14,374 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-21 06:12:14,374 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-21 06:12:14,374 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-21 06:12:14,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-21 06:12:14,425 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-21 06:12:14,485 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 06:12:14,486 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-21 06:12:14,487 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-01-21 06:12:14,487 INFO L252 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-01-21 06:12:14,489 INFO L409 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-01-21 06:12:14,499 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-01-21 06:12:14,500 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-01-21 06:12:14,503 INFO L87 Difference]: Start difference. First operand 41 states. Second operand 3 states. [2018-01-21 06:12:14,676 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-21 06:12:14,676 INFO L93 Difference]: Finished difference Result 63 states and 75 transitions. [2018-01-21 06:12:14,677 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-01-21 06:12:14,678 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 11 [2018-01-21 06:12:14,678 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-21 06:12:14,686 INFO L225 Difference]: With dead ends: 63 [2018-01-21 06:12:14,687 INFO L226 Difference]: Without dead ends: 25 [2018-01-21 06:12:14,691 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 06:12:14,705 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states. [2018-01-21 06:12:14,723 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 25. [2018-01-21 06:12:14,724 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25 states. [2018-01-21 06:12:14,725 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 27 transitions. [2018-01-21 06:12:14,726 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 27 transitions. Word has length 11 [2018-01-21 06:12:14,726 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-21 06:12:14,727 INFO L432 AbstractCegarLoop]: Abstraction has 25 states and 27 transitions. [2018-01-21 06:12:14,727 INFO L433 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-01-21 06:12:14,727 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 27 transitions. [2018-01-21 06:12:14,728 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2018-01-21 06:12:14,729 INFO L314 BasicCegarLoop]: Found error trace [2018-01-21 06:12:14,729 INFO L322 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-21 06:12:14,729 INFO L371 AbstractCegarLoop]: === Iteration 2 === [ldv_mallocErr0EnsuresViolation]=== [2018-01-21 06:12:14,729 INFO L82 PathProgramCache]: Analyzing trace with hash 2090469395, now seen corresponding path program 1 times [2018-01-21 06:12:14,729 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-21 06:12:14,731 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-21 06:12:14,732 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-21 06:12:14,732 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-21 06:12:14,732 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-21 06:12:14,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-01-21 06:12:14,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-01-21 06:12:14,794 INFO L381 BasicCegarLoop]: Counterexample might be feasible [2018-01-21 06:12:14,801 WARN L343 cessorBacktranslator]: Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) [2018-01-21 06:12:14,803 WARN L343 cessorBacktranslator]: Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) [2018-01-21 06:12:14,814 INFO L322 AbstractCegarLoop]: Interprodecural is true [2018-01-21 06:12:14,814 INFO L323 AbstractCegarLoop]: Hoare is true [2018-01-21 06:12:14,814 INFO L324 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-01-21 06:12:14,815 INFO L325 AbstractCegarLoop]: Backedges is TWOTRACK [2018-01-21 06:12:14,815 INFO L326 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-01-21 06:12:14,815 INFO L327 AbstractCegarLoop]: Difference is false [2018-01-21 06:12:14,815 INFO L328 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-01-21 06:12:14,815 INFO L333 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == ULTIMATE.initErr0EnsuresViolation======== [2018-01-21 06:12:14,815 INFO L87 2NestedWordAutomaton]: Mode: main mode - execution starts in main procedure [2018-01-21 06:12:14,817 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states. [2018-01-21 06:12:14,817 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2018-01-21 06:12:14,817 INFO L314 BasicCegarLoop]: Found error trace [2018-01-21 06:12:14,817 INFO L322 BasicCegarLoop]: trace histogram [1, 1, 1] [2018-01-21 06:12:14,818 INFO L371 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.initErr0EnsuresViolation]=== [2018-01-21 06:12:14,818 INFO L82 PathProgramCache]: Analyzing trace with hash 97447, now seen corresponding path program 1 times [2018-01-21 06:12:14,818 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-21 06:12:14,820 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-21 06:12:14,820 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-21 06:12:14,820 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-21 06:12:14,820 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-21 06:12:14,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-01-21 06:12:14,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-01-21 06:12:14,830 INFO L381 BasicCegarLoop]: Counterexample might be feasible [2018-01-21 06:12:14,831 WARN L343 cessorBacktranslator]: Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) [2018-01-21 06:12:14,833 INFO L322 AbstractCegarLoop]: Interprodecural is true [2018-01-21 06:12:14,833 INFO L323 AbstractCegarLoop]: Hoare is true [2018-01-21 06:12:14,833 INFO L324 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-01-21 06:12:14,833 INFO L325 AbstractCegarLoop]: Backedges is TWOTRACK [2018-01-21 06:12:14,834 INFO L326 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-01-21 06:12:14,834 INFO L327 AbstractCegarLoop]: Difference is false [2018-01-21 06:12:14,834 INFO L328 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-01-21 06:12:14,834 INFO L333 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == ULTIMATE.startErr0EnsuresViolation======== [2018-01-21 06:12:14,834 INFO L87 2NestedWordAutomaton]: Mode: main mode - execution starts in main procedure [2018-01-21 06:12:14,836 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states. [2018-01-21 06:12:14,837 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2018-01-21 06:12:14,837 INFO L314 BasicCegarLoop]: Found error trace [2018-01-21 06:12:14,837 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 06:12:14,838 INFO L371 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0EnsuresViolation]=== [2018-01-21 06:12:14,838 INFO L82 PathProgramCache]: Analyzing trace with hash 1196877193, now seen corresponding path program 1 times [2018-01-21 06:12:14,838 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-21 06:12:14,840 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-21 06:12:14,840 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-21 06:12:14,840 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-21 06:12:14,840 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-21 06:12:14,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-01-21 06:12:14,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-01-21 06:12:14,873 INFO L381 BasicCegarLoop]: Counterexample might be feasible [2018-01-21 06:12:14,875 WARN L343 cessorBacktranslator]: Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) [2018-01-21 06:12:14,876 WARN L343 cessorBacktranslator]: Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) [2018-01-21 06:12:14,876 WARN L343 cessorBacktranslator]: Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) [2018-01-21 06:12:14,876 WARN L343 cessorBacktranslator]: Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) [2018-01-21 06:12:14,877 WARN L343 cessorBacktranslator]: Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) [2018-01-21 06:12:14,880 INFO L322 AbstractCegarLoop]: Interprodecural is true [2018-01-21 06:12:14,881 INFO L323 AbstractCegarLoop]: Hoare is true [2018-01-21 06:12:14,881 INFO L324 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-01-21 06:12:14,881 INFO L325 AbstractCegarLoop]: Backedges is TWOTRACK [2018-01-21 06:12:14,881 INFO L326 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-01-21 06:12:14,881 INFO L327 AbstractCegarLoop]: Difference is false [2018-01-21 06:12:14,881 INFO L328 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-01-21 06:12:14,881 INFO L333 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == mainErr0EnsuresViolation======== [2018-01-21 06:12:14,882 INFO L87 2NestedWordAutomaton]: Mode: main mode - execution starts in main procedure [2018-01-21 06:12:14,883 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states. [2018-01-21 06:12:14,884 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2018-01-21 06:12:14,884 INFO L314 BasicCegarLoop]: Found error trace [2018-01-21 06:12:14,885 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 06:12:14,885 INFO L371 AbstractCegarLoop]: === Iteration 1 === [mainErr0EnsuresViolation]=== [2018-01-21 06:12:14,885 INFO L82 PathProgramCache]: Analyzing trace with hash 1520796833, now seen corresponding path program 1 times [2018-01-21 06:12:14,885 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-21 06:12:14,886 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-21 06:12:14,887 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-21 06:12:14,887 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-21 06:12:14,887 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-21 06:12:14,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-21 06:12:14,899 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-21 06:12:14,944 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 06:12:14,944 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-21 06:12:14,944 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-01-21 06:12:14,945 INFO L252 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-01-21 06:12:14,945 INFO L409 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-01-21 06:12:14,945 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-01-21 06:12:14,945 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-01-21 06:12:14,946 INFO L87 Difference]: Start difference. First operand 41 states. Second operand 3 states. [2018-01-21 06:12:14,997 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-21 06:12:14,997 INFO L93 Difference]: Finished difference Result 63 states and 75 transitions. [2018-01-21 06:12:14,997 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-01-21 06:12:14,997 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 17 [2018-01-21 06:12:14,998 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-21 06:12:14,998 INFO L225 Difference]: With dead ends: 63 [2018-01-21 06:12:14,998 INFO L226 Difference]: Without dead ends: 0 [2018-01-21 06:12:14,998 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 06:12:14,998 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-01-21 06:12:14,999 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-01-21 06:12:14,999 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-01-21 06:12:14,999 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-01-21 06:12:14,999 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 17 [2018-01-21 06:12:14,999 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-21 06:12:14,999 INFO L432 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-01-21 06:12:14,999 INFO L433 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-01-21 06:12:14,999 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-01-21 06:12:14,999 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-01-21 06:12:15,001 INFO L322 AbstractCegarLoop]: Interprodecural is true [2018-01-21 06:12:15,002 INFO L323 AbstractCegarLoop]: Hoare is true [2018-01-21 06:12:15,002 INFO L324 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-01-21 06:12:15,002 INFO L325 AbstractCegarLoop]: Backedges is TWOTRACK [2018-01-21 06:12:15,002 INFO L326 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-01-21 06:12:15,002 INFO L327 AbstractCegarLoop]: Difference is false [2018-01-21 06:12:15,002 INFO L328 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-01-21 06:12:15,002 INFO L333 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == entry_pointErr0EnsuresViolation======== [2018-01-21 06:12:15,002 INFO L87 2NestedWordAutomaton]: Mode: main mode - execution starts in main procedure [2018-01-21 06:12:15,003 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states. [2018-01-21 06:12:15,003 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2018-01-21 06:12:15,003 INFO L314 BasicCegarLoop]: Found error trace [2018-01-21 06:12:15,004 INFO L322 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-21 06:12:15,004 INFO L371 AbstractCegarLoop]: === Iteration 1 === [entry_pointErr0EnsuresViolation]=== [2018-01-21 06:12:15,004 INFO L82 PathProgramCache]: Analyzing trace with hash -1012941499, now seen corresponding path program 1 times [2018-01-21 06:12:15,004 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-21 06:12:15,005 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-21 06:12:15,005 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-21 06:12:15,005 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-21 06:12:15,005 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-21 06:12:15,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-21 06:12:15,016 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-21 06:12:15,044 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 06:12:15,044 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-21 06:12:15,044 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-01-21 06:12:15,044 INFO L252 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-01-21 06:12:15,045 INFO L409 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-01-21 06:12:15,045 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-01-21 06:12:15,045 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-01-21 06:12:15,045 INFO L87 Difference]: Start difference. First operand 41 states. Second operand 3 states. [2018-01-21 06:12:15,111 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-21 06:12:15,111 INFO L93 Difference]: Finished difference Result 63 states and 75 transitions. [2018-01-21 06:12:15,112 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-01-21 06:12:15,112 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 15 [2018-01-21 06:12:15,112 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-21 06:12:15,113 INFO L225 Difference]: With dead ends: 63 [2018-01-21 06:12:15,113 INFO L226 Difference]: Without dead ends: 37 [2018-01-21 06:12:15,113 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 06:12:15,113 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2018-01-21 06:12:15,119 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 34. [2018-01-21 06:12:15,119 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2018-01-21 06:12:15,120 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 38 transitions. [2018-01-21 06:12:15,120 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 38 transitions. Word has length 15 [2018-01-21 06:12:15,122 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-21 06:12:15,122 INFO L432 AbstractCegarLoop]: Abstraction has 34 states and 38 transitions. [2018-01-21 06:12:15,122 INFO L433 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-01-21 06:12:15,123 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 38 transitions. [2018-01-21 06:12:15,123 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2018-01-21 06:12:15,124 INFO L314 BasicCegarLoop]: Found error trace [2018-01-21 06:12:15,124 INFO L322 BasicCegarLoop]: trace histogram [2, 1, 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 06:12:15,124 INFO L371 AbstractCegarLoop]: === Iteration 2 === [entry_pointErr0EnsuresViolation]=== [2018-01-21 06:12:15,124 INFO L82 PathProgramCache]: Analyzing trace with hash 616897674, now seen corresponding path program 1 times [2018-01-21 06:12:15,124 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-21 06:12:15,125 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-21 06:12:15,126 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-21 06:12:15,126 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-21 06:12:15,126 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-21 06:12:15,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-21 06:12:15,140 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-21 06:12:15,217 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-01-21 06:12:15,217 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-21 06:12:15,217 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-01-21 06:12:15,217 INFO L252 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-01-21 06:12:15,218 INFO L409 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-01-21 06:12:15,218 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-01-21 06:12:15,218 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-01-21 06:12:15,218 INFO L87 Difference]: Start difference. First operand 34 states and 38 transitions. Second operand 5 states. [2018-01-21 06:12:15,233 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-21 06:12:15,233 INFO L93 Difference]: Finished difference Result 62 states and 70 transitions. [2018-01-21 06:12:15,234 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-01-21 06:12:15,234 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 26 [2018-01-21 06:12:15,234 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-21 06:12:15,236 INFO L225 Difference]: With dead ends: 62 [2018-01-21 06:12:15,236 INFO L226 Difference]: Without dead ends: 36 [2018-01-21 06:12:15,237 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 06:12:15,237 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2018-01-21 06:12:15,240 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 36. [2018-01-21 06:12:15,240 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2018-01-21 06:12:15,241 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 40 transitions. [2018-01-21 06:12:15,241 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 40 transitions. Word has length 26 [2018-01-21 06:12:15,241 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-21 06:12:15,241 INFO L432 AbstractCegarLoop]: Abstraction has 36 states and 40 transitions. [2018-01-21 06:12:15,241 INFO L433 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-01-21 06:12:15,241 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 40 transitions. [2018-01-21 06:12:15,242 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2018-01-21 06:12:15,242 INFO L314 BasicCegarLoop]: Found error trace [2018-01-21 06:12:15,242 INFO L322 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 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 06:12:15,242 INFO L371 AbstractCegarLoop]: === Iteration 3 === [entry_pointErr0EnsuresViolation]=== [2018-01-21 06:12:15,242 INFO L82 PathProgramCache]: Analyzing trace with hash -110983256, now seen corresponding path program 1 times [2018-01-21 06:12:15,243 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-21 06:12:15,243 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-21 06:12:15,244 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-21 06:12:15,244 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-21 06:12:15,244 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-21 06:12:15,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-21 06:12:15,256 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-21 06:12:15,288 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-01-21 06:12:15,288 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-21 06:12:15,289 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-01-21 06:12:15,289 INFO L252 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-01-21 06:12:15,289 INFO L409 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-01-21 06:12:15,289 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-01-21 06:12:15,289 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-01-21 06:12:15,289 INFO L87 Difference]: Start difference. First operand 36 states and 40 transitions. Second operand 4 states. [2018-01-21 06:12:15,307 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-21 06:12:15,307 INFO L93 Difference]: Finished difference Result 43 states and 47 transitions. [2018-01-21 06:12:15,308 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-01-21 06:12:15,308 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 28 [2018-01-21 06:12:15,308 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-21 06:12:15,309 INFO L225 Difference]: With dead ends: 43 [2018-01-21 06:12:15,309 INFO L226 Difference]: Without dead ends: 0 [2018-01-21 06:12:15,309 INFO L525 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-01-21 06:12:15,310 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-01-21 06:12:15,310 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-01-21 06:12:15,310 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-01-21 06:12:15,310 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-01-21 06:12:15,310 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 28 [2018-01-21 06:12:15,311 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-21 06:12:15,311 INFO L432 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-01-21 06:12:15,311 INFO L433 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-01-21 06:12:15,311 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-01-21 06:12:15,311 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-01-21 06:12:15,313 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.01 06:12:15 BoogieIcfgContainer [2018-01-21 06:12:15,314 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-01-21 06:12:15,314 INFO L168 Benchmark]: Toolchain (without parser) took 1569.28 ms. Allocated memory was 304.1 MB in the beginning and 469.2 MB in the end (delta: 165.2 MB). Free memory was 260.8 MB in the beginning and 374.7 MB in the end (delta: -113.9 MB). Peak memory consumption was 51.2 MB. Max. memory is 5.3 GB. [2018-01-21 06:12:15,315 INFO L168 Benchmark]: CDTParser took 0.13 ms. Allocated memory is still 304.1 MB. Free memory is still 266.8 MB. There was no memory consumed. Max. memory is 5.3 GB. [2018-01-21 06:12:15,316 INFO L168 Benchmark]: CACSL2BoogieTranslator took 201.33 ms. Allocated memory is still 304.1 MB. Free memory was 260.8 MB in the beginning and 246.8 MB in the end (delta: 14.0 MB). Peak memory consumption was 14.0 MB. Max. memory is 5.3 GB. [2018-01-21 06:12:15,316 INFO L168 Benchmark]: Boogie Preprocessor took 34.10 ms. Allocated memory is still 304.1 MB. Free memory was 246.8 MB in the beginning and 244.8 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 5.3 GB. [2018-01-21 06:12:15,316 INFO L168 Benchmark]: RCFGBuilder took 232.64 ms. Allocated memory is still 304.1 MB. Free memory was 244.8 MB in the beginning and 229.8 MB in the end (delta: 15.1 MB). Peak memory consumption was 15.1 MB. Max. memory is 5.3 GB. [2018-01-21 06:12:15,317 INFO L168 Benchmark]: TraceAbstraction took 1094.66 ms. Allocated memory was 304.1 MB in the beginning and 469.2 MB in the end (delta: 165.2 MB). Free memory was 227.8 MB in the beginning and 374.7 MB in the end (delta: -147.0 MB). Peak memory consumption was 18.2 MB. Max. memory is 5.3 GB. [2018-01-21 06:12:15,318 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 304.1 MB. Free memory is still 266.8 MB. There was no memory consumed. Max. memory is 5.3 GB. * CACSL2BoogieTranslator took 201.33 ms. Allocated memory is still 304.1 MB. Free memory was 260.8 MB in the beginning and 246.8 MB in the end (delta: 14.0 MB). Peak memory consumption was 14.0 MB. Max. memory is 5.3 GB. * Boogie Preprocessor took 34.10 ms. Allocated memory is still 304.1 MB. Free memory was 246.8 MB in the beginning and 244.8 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 5.3 GB. * RCFGBuilder took 232.64 ms. Allocated memory is still 304.1 MB. Free memory was 244.8 MB in the beginning and 229.8 MB in the end (delta: 15.1 MB). Peak memory consumption was 15.1 MB. Max. memory is 5.3 GB. * TraceAbstraction took 1094.66 ms. Allocated memory was 304.1 MB in the beginning and 469.2 MB in the end (delta: 165.2 MB). Free memory was 227.8 MB in the beginning and 374.7 MB in the end (delta: -147.0 MB). Peak memory consumption was 18.2 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: [L1459] 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, 41 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, 18 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=41occurred 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, 41 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=41occurred 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: [L1459] 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] struct A18 *p; [L1442] int i=0; [L1443] int j; VAL [array={0:0}, i=0, len=10] [L1444] COND TRUE, RET !array VAL [array={0:0}, i=0, len=10] [L1459] entry_point() - StatisticsResult: Ultimate Automizer benchmark data for error location: ULTIMATE.startErr0EnsuresViolation CFG has 5 procedures, 41 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=41occurred 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: 1458]: 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, 41 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, 18 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=41occurred 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, 41 locations, 5 error locations. SAFE Result, 0.3s OverallTime, 3 OverallIterations, 2 TraceHistogramMax, 0.1s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 82 SDtfs, 20 SDslu, 112 SDs, 0 SdLazy, 40 SolverSat, 15 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 13 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=41occurred 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, 3 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 69 NumberOfCodeBlocks, 69 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 66 ConstructedInterpolants, 0 QuantifiedInterpolants, 2726 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 4/4 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_1_false-valid-memtrack_true-termination.i_mempurity-32bit-Automizer_Taipan+AI_EQ_precise.epf_AutomizerC.xml/Csv-Benchmark-0-2018-01-21_06-12-15-328.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/memleaks_test18_1_false-valid-memtrack_true-termination.i_mempurity-32bit-Automizer_Taipan+AI_EQ_precise.epf_AutomizerC.xml/Csv-TraceAbstractionBenchmarks-0-2018-01-21_06-12-15-328.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/memleaks_test18_1_false-valid-memtrack_true-termination.i_mempurity-32bit-Automizer_Taipan+AI_EQ_precise.epf_AutomizerC.xml/Csv-TraceAbstractionBenchmarks-1-2018-01-21_06-12-15-328.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/memleaks_test18_1_false-valid-memtrack_true-termination.i_mempurity-32bit-Automizer_Taipan+AI_EQ_precise.epf_AutomizerC.xml/Csv-TraceAbstractionBenchmarks-2-2018-01-21_06-12-15-328.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/memleaks_test18_1_false-valid-memtrack_true-termination.i_mempurity-32bit-Automizer_Taipan+AI_EQ_precise.epf_AutomizerC.xml/Csv-TraceAbstractionBenchmarks-3-2018-01-21_06-12-15-328.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/memleaks_test18_1_false-valid-memtrack_true-termination.i_mempurity-32bit-Automizer_Taipan+AI_EQ_precise.epf_AutomizerC.xml/Csv-TraceAbstractionBenchmarks-4-2018-01-21_06-12-15-328.csv Received shutdown request...