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.epf -i ../../../trunk/examples/svcomp/ldv-memsafety/memleaks_test18_1_false-valid-memtrack_true-termination.i -------------------------------------------------------------------------------- This is Ultimate 0.1.23-2f49842 [2018-01-20 23:57:59,389 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-01-20 23:57:59,390 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-01-20 23:57:59,405 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-01-20 23:57:59,405 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-01-20 23:57:59,406 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-01-20 23:57:59,407 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-01-20 23:57:59,408 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-01-20 23:57:59,410 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-01-20 23:57:59,410 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-01-20 23:57:59,411 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-01-20 23:57:59,411 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-01-20 23:57:59,412 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-01-20 23:57:59,413 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-01-20 23:57:59,414 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-01-20 23:57:59,417 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-01-20 23:57:59,419 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-01-20 23:57:59,421 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-01-20 23:57:59,423 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-01-20 23:57:59,424 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-01-20 23:57:59,427 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-01-20 23:57:59,433 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-01-20 23:57:59,434 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-01-20 23:57:59,434 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.epf [2018-01-20 23:57:59,445 INFO L110 SettingsManager]: Loading preferences was successful [2018-01-20 23:57:59,445 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-01-20 23:57:59,446 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-01-20 23:57:59,446 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-01-20 23:57:59,446 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-01-20 23:57:59,447 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=VPDomain [2018-01-20 23:57:59,447 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-01-20 23:57:59,448 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-01-20 23:57:59,448 INFO L133 SettingsManager]: * sizeof long=4 [2018-01-20 23:57:59,448 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-01-20 23:57:59,448 INFO L133 SettingsManager]: * Check allocation purity=true [2018-01-20 23:57:59,448 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-01-20 23:57:59,449 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-01-20 23:57:59,449 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-01-20 23:57:59,449 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-01-20 23:57:59,449 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-01-20 23:57:59,449 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-01-20 23:57:59,450 INFO L133 SettingsManager]: * sizeof long double=12 [2018-01-20 23:57:59,450 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-01-20 23:57:59,450 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-01-20 23:57:59,450 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-01-20 23:57:59,451 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-01-20 23:57:59,451 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-01-20 23:57:59,451 INFO L133 SettingsManager]: * Add additional assume for each assert=false [2018-01-20 23:57:59,451 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-01-20 23:57:59,452 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-01-20 23:57:59,452 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-01-20 23:57:59,452 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-01-20 23:57:59,452 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-01-20 23:57:59,452 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-01-20 23:57:59,453 INFO L133 SettingsManager]: * Stop after first violation was found=false [2018-01-20 23:57:59,453 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-01-20 23:57:59,453 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-01-20 23:57:59,453 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-01-20 23:57:59,453 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-01-20 23:57:59,454 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-01-20 23:57:59,455 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-01-20 23:57:59,455 INFO L133 SettingsManager]: * TransformationType=HEAP_SEPARATOR [2018-01-20 23:57:59,492 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-01-20 23:57:59,505 INFO L266 ainManager$Toolchain]: [Toolchain 1]: Parser(s) successfully initialized [2018-01-20 23:57:59,510 INFO L222 ainManager$Toolchain]: [Toolchain 1]: Toolchain data selected. [2018-01-20 23:57:59,512 INFO L271 PluginConnector]: Initializing CDTParser... [2018-01-20 23:57:59,513 INFO L276 PluginConnector]: CDTParser initialized [2018-01-20 23:57:59,513 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-memsafety/memleaks_test18_1_false-valid-memtrack_true-termination.i [2018-01-20 23:57:59,726 INFO L304 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-01-20 23:57:59,731 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-01-20 23:57:59,732 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-01-20 23:57:59,732 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-01-20 23:57:59,738 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-01-20 23:57:59,739 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.01 11:57:59" (1/1) ... [2018-01-20 23:57:59,742 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@68d9cb43 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 11:57:59, skipping insertion in model container [2018-01-20 23:57:59,742 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.01 11:57:59" (1/1) ... [2018-01-20 23:57:59,756 INFO L153 Dispatcher]: Using SV-COMP mode [2018-01-20 23:57:59,804 INFO L153 Dispatcher]: Using SV-COMP mode [2018-01-20 23:57:59,928 INFO L450 PostProcessor]: Settings: Checked method=main [2018-01-20 23:57:59,948 INFO L450 PostProcessor]: Settings: Checked method=main [2018-01-20 23:57:59,957 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 11:57:59 WrapperNode [2018-01-20 23:57:59,957 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-01-20 23:57:59,958 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-01-20 23:57:59,958 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-01-20 23:57:59,958 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-01-20 23:57:59,974 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 11:57:59" (1/1) ... [2018-01-20 23:57:59,975 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 11:57:59" (1/1) ... [2018-01-20 23:57:59,983 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 11:57:59" (1/1) ... [2018-01-20 23:57:59,984 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 11:57:59" (1/1) ... [2018-01-20 23:57:59,989 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 11:57:59" (1/1) ... [2018-01-20 23:57:59,993 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 11:57:59" (1/1) ... [2018-01-20 23:57:59,995 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 11:57:59" (1/1) ... [2018-01-20 23:57:59,997 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-01-20 23:57:59,998 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-01-20 23:57:59,998 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-01-20 23:57:59,998 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-01-20 23:57:59,999 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 11:57:59" (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 [2018-01-20 23:58:00,055 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-01-20 23:58:00,055 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-01-20 23:58:00,055 INFO L136 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2018-01-20 23:58:00,056 INFO L136 BoogieDeclarations]: Found implementation of procedure entry_point [2018-01-20 23:58:00,056 INFO L136 BoogieDeclarations]: Found implementation of procedure main [2018-01-20 23:58:00,056 INFO L128 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2018-01-20 23:58:00,056 INFO L128 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2018-01-20 23:58:00,056 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.free [2018-01-20 23:58:00,056 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-01-20 23:58:00,056 INFO L128 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-01-20 23:58:00,056 INFO L128 BoogieDeclarations]: Found specification of procedure malloc [2018-01-20 23:58:00,056 INFO L128 BoogieDeclarations]: Found specification of procedure free [2018-01-20 23:58:00,057 INFO L128 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2018-01-20 23:58:00,057 INFO L128 BoogieDeclarations]: Found specification of procedure ldv_malloc [2018-01-20 23:58:00,057 INFO L128 BoogieDeclarations]: Found specification of procedure entry_point [2018-01-20 23:58:00,057 INFO L128 BoogieDeclarations]: Found specification of procedure main [2018-01-20 23:58:00,057 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-01-20 23:58:00,057 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-01-20 23:58:00,269 INFO L257 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-01-20 23:58:00,269 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.01 11:58:00 BoogieIcfgContainer [2018-01-20 23:58:00,269 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-01-20 23:58:00,270 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-01-20 23:58:00,270 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-01-20 23:58:00,273 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-01-20 23:58:00,273 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.01 11:57:59" (1/3) ... [2018-01-20 23:58:00,275 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1dcaf2d7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.01 11:58:00, skipping insertion in model container [2018-01-20 23:58:00,275 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 11:57:59" (2/3) ... [2018-01-20 23:58:00,275 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1dcaf2d7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.01 11:58:00, skipping insertion in model container [2018-01-20 23:58:00,275 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.01 11:58:00" (3/3) ... [2018-01-20 23:58:00,277 INFO L105 eAbstractionObserver]: Analyzing ICFG memleaks_test18_1_false-valid-memtrack_true-termination.i [2018-01-20 23:58:00,284 INFO L130 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-01-20 23:58:00,290 INFO L142 ceAbstractionStarter]: Appying trace abstraction to program that has 5 error locations. [2018-01-20 23:58:00,334 INFO L322 AbstractCegarLoop]: Interprodecural is true [2018-01-20 23:58:00,335 INFO L323 AbstractCegarLoop]: Hoare is true [2018-01-20 23:58:00,335 INFO L324 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-01-20 23:58:00,335 INFO L325 AbstractCegarLoop]: Backedges is TWOTRACK [2018-01-20 23:58:00,335 INFO L326 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-01-20 23:58:00,335 INFO L327 AbstractCegarLoop]: Difference is false [2018-01-20 23:58:00,336 INFO L328 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-01-20 23:58:00,336 INFO L333 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == ldv_mallocErr0EnsuresViolation======== [2018-01-20 23:58:00,337 INFO L87 2NestedWordAutomaton]: Mode: main mode - execution starts in main procedure [2018-01-20 23:58:00,356 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states. [2018-01-20 23:58:00,362 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2018-01-20 23:58:00,362 INFO L314 BasicCegarLoop]: Found error trace [2018-01-20 23:58:00,363 INFO L322 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-20 23:58:00,363 INFO L371 AbstractCegarLoop]: === Iteration 1 === [ldv_mallocErr0EnsuresViolation]=== [2018-01-20 23:58:00,367 INFO L82 PathProgramCache]: Analyzing trace with hash -560952463, now seen corresponding path program 1 times [2018-01-20 23:58:00,369 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-20 23:58:00,419 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-20 23:58:00,419 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-20 23:58:00,419 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-20 23:58:00,419 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-20 23:58:00,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-20 23:58:00,477 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-20 23:58:00,526 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-20 23:58:00,528 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-20 23:58:00,528 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-01-20 23:58:00,529 INFO L252 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-01-20 23:58:00,531 INFO L409 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-01-20 23:58:00,541 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-01-20 23:58:00,542 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-01-20 23:58:00,545 INFO L87 Difference]: Start difference. First operand 41 states. Second operand 3 states. [2018-01-20 23:58:00,719 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-20 23:58:00,719 INFO L93 Difference]: Finished difference Result 63 states and 75 transitions. [2018-01-20 23:58:00,720 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-01-20 23:58:00,721 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 11 [2018-01-20 23:58:00,721 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-20 23:58:00,728 INFO L225 Difference]: With dead ends: 63 [2018-01-20 23:58:00,729 INFO L226 Difference]: Without dead ends: 25 [2018-01-20 23:58:00,732 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 [2018-01-20 23:58:00,746 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states. [2018-01-20 23:58:00,763 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 25. [2018-01-20 23:58:00,764 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25 states. [2018-01-20 23:58:00,765 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 27 transitions. [2018-01-20 23:58:00,766 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 27 transitions. Word has length 11 [2018-01-20 23:58:00,767 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-20 23:58:00,767 INFO L432 AbstractCegarLoop]: Abstraction has 25 states and 27 transitions. [2018-01-20 23:58:00,767 INFO L433 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-01-20 23:58:00,767 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 27 transitions. [2018-01-20 23:58:00,768 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2018-01-20 23:58:00,769 INFO L314 BasicCegarLoop]: Found error trace [2018-01-20 23:58:00,769 INFO L322 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-20 23:58:00,769 INFO L371 AbstractCegarLoop]: === Iteration 2 === [ldv_mallocErr0EnsuresViolation]=== [2018-01-20 23:58:00,769 INFO L82 PathProgramCache]: Analyzing trace with hash 2090469395, now seen corresponding path program 1 times [2018-01-20 23:58:00,770 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-20 23:58:00,771 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-20 23:58:00,771 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-20 23:58:00,772 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-20 23:58:00,772 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-20 23:58:00,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-01-20 23:58:00,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-01-20 23:58:00,833 INFO L381 BasicCegarLoop]: Counterexample might be feasible [2018-01-20 23:58:00,840 WARN L343 cessorBacktranslator]: Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) [2018-01-20 23:58:00,842 WARN L343 cessorBacktranslator]: Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) [2018-01-20 23:58:00,853 INFO L322 AbstractCegarLoop]: Interprodecural is true [2018-01-20 23:58:00,853 INFO L323 AbstractCegarLoop]: Hoare is true [2018-01-20 23:58:00,853 INFO L324 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-01-20 23:58:00,853 INFO L325 AbstractCegarLoop]: Backedges is TWOTRACK [2018-01-20 23:58:00,853 INFO L326 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-01-20 23:58:00,854 INFO L327 AbstractCegarLoop]: Difference is false [2018-01-20 23:58:00,854 INFO L328 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-01-20 23:58:00,854 INFO L333 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == ULTIMATE.initErr0EnsuresViolation======== [2018-01-20 23:58:00,854 INFO L87 2NestedWordAutomaton]: Mode: main mode - execution starts in main procedure [2018-01-20 23:58:00,856 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states. [2018-01-20 23:58:00,856 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2018-01-20 23:58:00,856 INFO L314 BasicCegarLoop]: Found error trace [2018-01-20 23:58:00,856 INFO L322 BasicCegarLoop]: trace histogram [1, 1, 1] [2018-01-20 23:58:00,857 INFO L371 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.initErr0EnsuresViolation]=== [2018-01-20 23:58:00,857 INFO L82 PathProgramCache]: Analyzing trace with hash 97447, now seen corresponding path program 1 times [2018-01-20 23:58:00,857 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-20 23:58:00,859 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-20 23:58:00,859 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-20 23:58:00,859 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-20 23:58:00,859 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-20 23:58:00,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-01-20 23:58:00,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-01-20 23:58:00,870 INFO L381 BasicCegarLoop]: Counterexample might be feasible [2018-01-20 23:58:00,871 WARN L343 cessorBacktranslator]: Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) [2018-01-20 23:58:00,873 INFO L322 AbstractCegarLoop]: Interprodecural is true [2018-01-20 23:58:00,873 INFO L323 AbstractCegarLoop]: Hoare is true [2018-01-20 23:58:00,873 INFO L324 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-01-20 23:58:00,873 INFO L325 AbstractCegarLoop]: Backedges is TWOTRACK [2018-01-20 23:58:00,874 INFO L326 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-01-20 23:58:00,874 INFO L327 AbstractCegarLoop]: Difference is false [2018-01-20 23:58:00,874 INFO L328 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-01-20 23:58:00,874 INFO L333 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == ULTIMATE.startErr0EnsuresViolation======== [2018-01-20 23:58:00,874 INFO L87 2NestedWordAutomaton]: Mode: main mode - execution starts in main procedure [2018-01-20 23:58:00,876 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states. [2018-01-20 23:58:00,877 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2018-01-20 23:58:00,877 INFO L314 BasicCegarLoop]: Found error trace [2018-01-20 23:58:00,878 INFO L322 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-20 23:58:00,878 INFO L371 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0EnsuresViolation]=== [2018-01-20 23:58:00,878 INFO L82 PathProgramCache]: Analyzing trace with hash 1196877193, now seen corresponding path program 1 times [2018-01-20 23:58:00,878 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-20 23:58:00,880 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-20 23:58:00,880 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-20 23:58:00,880 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-20 23:58:00,880 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-20 23:58:00,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-01-20 23:58:00,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-01-20 23:58:00,915 INFO L381 BasicCegarLoop]: Counterexample might be feasible [2018-01-20 23:58:00,918 WARN L343 cessorBacktranslator]: Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) [2018-01-20 23:58:00,919 WARN L343 cessorBacktranslator]: Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) [2018-01-20 23:58:00,920 WARN L343 cessorBacktranslator]: Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) [2018-01-20 23:58:00,920 WARN L343 cessorBacktranslator]: Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) [2018-01-20 23:58:00,920 WARN L343 cessorBacktranslator]: Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) [2018-01-20 23:58:00,924 INFO L322 AbstractCegarLoop]: Interprodecural is true [2018-01-20 23:58:00,924 INFO L323 AbstractCegarLoop]: Hoare is true [2018-01-20 23:58:00,924 INFO L324 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-01-20 23:58:00,924 INFO L325 AbstractCegarLoop]: Backedges is TWOTRACK [2018-01-20 23:58:00,924 INFO L326 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-01-20 23:58:00,925 INFO L327 AbstractCegarLoop]: Difference is false [2018-01-20 23:58:00,925 INFO L328 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-01-20 23:58:00,925 INFO L333 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == mainErr0EnsuresViolation======== [2018-01-20 23:58:00,925 INFO L87 2NestedWordAutomaton]: Mode: main mode - execution starts in main procedure [2018-01-20 23:58:00,926 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states. [2018-01-20 23:58:00,927 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2018-01-20 23:58:00,928 INFO L314 BasicCegarLoop]: Found error trace [2018-01-20 23:58:00,928 INFO L322 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-20 23:58:00,928 INFO L371 AbstractCegarLoop]: === Iteration 1 === [mainErr0EnsuresViolation]=== [2018-01-20 23:58:00,928 INFO L82 PathProgramCache]: Analyzing trace with hash 1520796833, now seen corresponding path program 1 times [2018-01-20 23:58:00,928 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-20 23:58:00,929 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-20 23:58:00,929 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-20 23:58:00,930 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-20 23:58:00,930 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-20 23:58:00,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-20 23:58:00,942 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-20 23:58:00,990 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-20 23:58:00,990 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-20 23:58:00,990 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-01-20 23:58:00,990 INFO L252 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-01-20 23:58:00,991 INFO L409 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-01-20 23:58:00,991 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-01-20 23:58:00,991 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-01-20 23:58:00,991 INFO L87 Difference]: Start difference. First operand 41 states. Second operand 3 states. [2018-01-20 23:58:01,040 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-20 23:58:01,040 INFO L93 Difference]: Finished difference Result 63 states and 75 transitions. [2018-01-20 23:58:01,041 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-01-20 23:58:01,041 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 17 [2018-01-20 23:58:01,041 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-20 23:58:01,041 INFO L225 Difference]: With dead ends: 63 [2018-01-20 23:58:01,041 INFO L226 Difference]: Without dead ends: 0 [2018-01-20 23:58:01,042 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 [2018-01-20 23:58:01,042 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-01-20 23:58:01,042 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-01-20 23:58:01,043 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-01-20 23:58:01,043 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-01-20 23:58:01,043 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 17 [2018-01-20 23:58:01,043 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-20 23:58:01,043 INFO L432 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-01-20 23:58:01,043 INFO L433 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-01-20 23:58:01,044 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-01-20 23:58:01,044 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-01-20 23:58:01,046 INFO L322 AbstractCegarLoop]: Interprodecural is true [2018-01-20 23:58:01,046 INFO L323 AbstractCegarLoop]: Hoare is true [2018-01-20 23:58:01,046 INFO L324 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-01-20 23:58:01,046 INFO L325 AbstractCegarLoop]: Backedges is TWOTRACK [2018-01-20 23:58:01,047 INFO L326 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-01-20 23:58:01,047 INFO L327 AbstractCegarLoop]: Difference is false [2018-01-20 23:58:01,047 INFO L328 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-01-20 23:58:01,047 INFO L333 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == entry_pointErr0EnsuresViolation======== [2018-01-20 23:58:01,047 INFO L87 2NestedWordAutomaton]: Mode: main mode - execution starts in main procedure [2018-01-20 23:58:01,048 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states. [2018-01-20 23:58:01,049 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2018-01-20 23:58:01,049 INFO L314 BasicCegarLoop]: Found error trace [2018-01-20 23:58:01,050 INFO L322 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-20 23:58:01,050 INFO L371 AbstractCegarLoop]: === Iteration 1 === [entry_pointErr0EnsuresViolation]=== [2018-01-20 23:58:01,050 INFO L82 PathProgramCache]: Analyzing trace with hash -1012941499, now seen corresponding path program 1 times [2018-01-20 23:58:01,050 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-20 23:58:01,051 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-20 23:58:01,051 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-20 23:58:01,052 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-20 23:58:01,052 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-20 23:58:01,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-20 23:58:01,064 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-20 23:58:01,091 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-20 23:58:01,091 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-20 23:58:01,091 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-01-20 23:58:01,091 INFO L252 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-01-20 23:58:01,092 INFO L409 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-01-20 23:58:01,092 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-01-20 23:58:01,092 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-01-20 23:58:01,092 INFO L87 Difference]: Start difference. First operand 41 states. Second operand 3 states. [2018-01-20 23:58:01,136 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-20 23:58:01,136 INFO L93 Difference]: Finished difference Result 63 states and 75 transitions. [2018-01-20 23:58:01,137 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-01-20 23:58:01,137 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 15 [2018-01-20 23:58:01,137 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-20 23:58:01,138 INFO L225 Difference]: With dead ends: 63 [2018-01-20 23:58:01,138 INFO L226 Difference]: Without dead ends: 37 [2018-01-20 23:58:01,138 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 [2018-01-20 23:58:01,139 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2018-01-20 23:58:01,144 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 34. [2018-01-20 23:58:01,144 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2018-01-20 23:58:01,145 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 38 transitions. [2018-01-20 23:58:01,145 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 38 transitions. Word has length 15 [2018-01-20 23:58:01,147 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-20 23:58:01,147 INFO L432 AbstractCegarLoop]: Abstraction has 34 states and 38 transitions. [2018-01-20 23:58:01,147 INFO L433 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-01-20 23:58:01,147 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 38 transitions. [2018-01-20 23:58:01,148 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2018-01-20 23:58:01,148 INFO L314 BasicCegarLoop]: Found error trace [2018-01-20 23:58:01,148 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] [2018-01-20 23:58:01,148 INFO L371 AbstractCegarLoop]: === Iteration 2 === [entry_pointErr0EnsuresViolation]=== [2018-01-20 23:58:01,149 INFO L82 PathProgramCache]: Analyzing trace with hash 616897674, now seen corresponding path program 1 times [2018-01-20 23:58:01,149 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-20 23:58:01,150 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-20 23:58:01,150 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-20 23:58:01,151 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-20 23:58:01,151 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-20 23:58:01,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-20 23:58:01,163 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-20 23:58:01,225 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-01-20 23:58:01,226 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-20 23:58:01,226 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-01-20 23:58:01,226 INFO L252 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-01-20 23:58:01,226 INFO L409 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-01-20 23:58:01,227 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-01-20 23:58:01,227 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-01-20 23:58:01,227 INFO L87 Difference]: Start difference. First operand 34 states and 38 transitions. Second operand 5 states. [2018-01-20 23:58:01,244 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-20 23:58:01,244 INFO L93 Difference]: Finished difference Result 62 states and 70 transitions. [2018-01-20 23:58:01,244 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-01-20 23:58:01,244 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 26 [2018-01-20 23:58:01,245 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-20 23:58:01,246 INFO L225 Difference]: With dead ends: 62 [2018-01-20 23:58:01,247 INFO L226 Difference]: Without dead ends: 36 [2018-01-20 23:58:01,248 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 [2018-01-20 23:58:01,248 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2018-01-20 23:58:01,253 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 36. [2018-01-20 23:58:01,253 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2018-01-20 23:58:01,254 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 40 transitions. [2018-01-20 23:58:01,254 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 40 transitions. Word has length 26 [2018-01-20 23:58:01,255 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-20 23:58:01,255 INFO L432 AbstractCegarLoop]: Abstraction has 36 states and 40 transitions. [2018-01-20 23:58:01,255 INFO L433 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-01-20 23:58:01,255 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 40 transitions. [2018-01-20 23:58:01,256 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2018-01-20 23:58:01,256 INFO L314 BasicCegarLoop]: Found error trace [2018-01-20 23:58:01,256 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] [2018-01-20 23:58:01,257 INFO L371 AbstractCegarLoop]: === Iteration 3 === [entry_pointErr0EnsuresViolation]=== [2018-01-20 23:58:01,257 INFO L82 PathProgramCache]: Analyzing trace with hash -110983256, now seen corresponding path program 1 times [2018-01-20 23:58:01,257 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-20 23:58:01,258 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-20 23:58:01,258 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-20 23:58:01,258 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-20 23:58:01,259 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-20 23:58:01,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-20 23:58:01,273 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-20 23:58:01,303 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-01-20 23:58:01,303 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-20 23:58:01,303 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-01-20 23:58:01,303 INFO L252 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-01-20 23:58:01,303 INFO L409 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-01-20 23:58:01,304 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-01-20 23:58:01,304 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-01-20 23:58:01,304 INFO L87 Difference]: Start difference. First operand 36 states and 40 transitions. Second operand 4 states. [2018-01-20 23:58:01,325 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-20 23:58:01,325 INFO L93 Difference]: Finished difference Result 43 states and 47 transitions. [2018-01-20 23:58:01,326 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-01-20 23:58:01,326 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 28 [2018-01-20 23:58:01,326 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-20 23:58:01,326 INFO L225 Difference]: With dead ends: 43 [2018-01-20 23:58:01,326 INFO L226 Difference]: Without dead ends: 0 [2018-01-20 23:58:01,327 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 [2018-01-20 23:58:01,327 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-01-20 23:58:01,327 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-01-20 23:58:01,327 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-01-20 23:58:01,327 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-01-20 23:58:01,327 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 28 [2018-01-20 23:58:01,327 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-20 23:58:01,327 INFO L432 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-01-20 23:58:01,327 INFO L433 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-01-20 23:58:01,327 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-01-20 23:58:01,328 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-01-20 23:58:01,329 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.01 11:58:01 BoogieIcfgContainer [2018-01-20 23:58:01,329 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-01-20 23:58:01,330 INFO L168 Benchmark]: Toolchain (without parser) took 1603.18 ms. Allocated memory was 304.6 MB in the beginning and 467.1 MB in the end (delta: 162.5 MB). Free memory was 261.9 MB in the beginning and 373.9 MB in the end (delta: -112.0 MB). Peak memory consumption was 50.6 MB. Max. memory is 5.3 GB. [2018-01-20 23:58:01,331 INFO L168 Benchmark]: CDTParser took 0.34 ms. Allocated memory is still 304.6 MB. Free memory is still 268.9 MB. There was no memory consumed. Max. memory is 5.3 GB. [2018-01-20 23:58:01,331 INFO L168 Benchmark]: CACSL2BoogieTranslator took 225.19 ms. Allocated memory is still 304.6 MB. Free memory was 261.9 MB in the beginning and 248.8 MB in the end (delta: 13.1 MB). Peak memory consumption was 13.1 MB. Max. memory is 5.3 GB. [2018-01-20 23:58:01,332 INFO L168 Benchmark]: Boogie Preprocessor took 39.70 ms. Allocated memory is still 304.6 MB. Free memory was 248.8 MB in the beginning and 246.7 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 5.3 GB. [2018-01-20 23:58:01,332 INFO L168 Benchmark]: RCFGBuilder took 271.64 ms. Allocated memory is still 304.6 MB. Free memory was 246.7 MB in the beginning and 231.1 MB in the end (delta: 15.6 MB). Peak memory consumption was 15.6 MB. Max. memory is 5.3 GB. [2018-01-20 23:58:01,332 INFO L168 Benchmark]: TraceAbstraction took 1059.34 ms. Allocated memory was 304.6 MB in the beginning and 467.1 MB in the end (delta: 162.5 MB). Free memory was 231.1 MB in the beginning and 373.9 MB in the end (delta: -142.8 MB). Peak memory consumption was 19.8 MB. Max. memory is 5.3 GB. [2018-01-20 23:58:01,333 INFO L344 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.34 ms. Allocated memory is still 304.6 MB. Free memory is still 268.9 MB. There was no memory consumed. Max. memory is 5.3 GB. * CACSL2BoogieTranslator took 225.19 ms. Allocated memory is still 304.6 MB. Free memory was 261.9 MB in the beginning and 248.8 MB in the end (delta: 13.1 MB). Peak memory consumption was 13.1 MB. Max. memory is 5.3 GB. * Boogie Preprocessor took 39.70 ms. Allocated memory is still 304.6 MB. Free memory was 248.8 MB in the beginning and 246.7 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 5.3 GB. * RCFGBuilder took 271.64 ms. Allocated memory is still 304.6 MB. Free memory was 246.7 MB in the beginning and 231.1 MB in the end (delta: 15.6 MB). Peak memory consumption was 15.6 MB. Max. memory is 5.3 GB. * TraceAbstraction took 1059.34 ms. Allocated memory was 304.6 MB in the beginning and 467.1 MB in the end (delta: 162.5 MB). Free memory was 231.1 MB in the beginning and 373.9 MB in the end (delta: -142.8 MB). Peak memory consumption was 19.8 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, 0.2s OverallTime, 3 OverallIterations, 2 TraceHistogramMax, 0.0s 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.epf_AutomizerC.xml/Csv-Benchmark-0-2018-01-20_23-58-01-341.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.epf_AutomizerC.xml/Csv-TraceAbstractionBenchmarks-0-2018-01-20_23-58-01-341.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.epf_AutomizerC.xml/Csv-TraceAbstractionBenchmarks-1-2018-01-20_23-58-01-341.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.epf_AutomizerC.xml/Csv-TraceAbstractionBenchmarks-2-2018-01-20_23-58-01-341.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.epf_AutomizerC.xml/Csv-TraceAbstractionBenchmarks-3-2018-01-20_23-58-01-341.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.epf_AutomizerC.xml/Csv-TraceAbstractionBenchmarks-4-2018-01-20_23-58-01-341.csv Received shutdown request...