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_test1_false-valid-memtrack_true-termination.i -------------------------------------------------------------------------------- This is Ultimate 0.1.23-2f49842 [2018-01-21 06:12:28,693 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-01-21 06:12:28,711 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-01-21 06:12:28,724 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-01-21 06:12:28,724 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-01-21 06:12:28,725 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-01-21 06:12:28,726 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-01-21 06:12:28,728 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-01-21 06:12:28,730 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-01-21 06:12:28,731 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-01-21 06:12:28,731 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-01-21 06:12:28,732 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-01-21 06:12:28,732 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-01-21 06:12:28,733 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-01-21 06:12:28,734 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-01-21 06:12:28,736 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-01-21 06:12:28,738 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-01-21 06:12:28,740 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-01-21 06:12:28,742 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-01-21 06:12:28,743 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-01-21 06:12:28,745 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-01-21 06:12:28,750 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-01-21 06:12:28,751 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-01-21 06:12:28,751 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 06:12:28,761 INFO L110 SettingsManager]: Loading preferences was successful [2018-01-21 06:12:28,761 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-01-21 06:12:28,762 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-01-21 06:12:28,762 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-01-21 06:12:28,762 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-01-21 06:12:28,763 INFO L133 SettingsManager]: * Weq Fattening=true [2018-01-21 06:12:28,763 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=VPDomain [2018-01-21 06:12:28,763 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-01-21 06:12:28,764 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-01-21 06:12:28,764 INFO L133 SettingsManager]: * sizeof long=4 [2018-01-21 06:12:28,764 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-01-21 06:12:28,764 INFO L133 SettingsManager]: * Check allocation purity=true [2018-01-21 06:12:28,764 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-01-21 06:12:28,765 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-01-21 06:12:28,765 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-01-21 06:12:28,765 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-01-21 06:12:28,765 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-01-21 06:12:28,765 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-01-21 06:12:28,765 INFO L133 SettingsManager]: * sizeof long double=12 [2018-01-21 06:12:28,766 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-01-21 06:12:28,766 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-01-21 06:12:28,766 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-01-21 06:12:28,766 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-01-21 06:12:28,766 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-01-21 06:12:28,767 INFO L133 SettingsManager]: * Add additional assume for each assert=false [2018-01-21 06:12:28,767 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-01-21 06:12:28,767 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-01-21 06:12:28,767 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-01-21 06:12:28,768 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-01-21 06:12:28,768 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-01-21 06:12:28,768 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-01-21 06:12:28,768 INFO L133 SettingsManager]: * Stop after first violation was found=false [2018-01-21 06:12:28,768 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-01-21 06:12:28,768 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-01-21 06:12:28,769 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-01-21 06:12:28,769 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-01-21 06:12:28,769 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-01-21 06:12:28,770 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-01-21 06:12:28,770 INFO L133 SettingsManager]: * TransformationType=HEAP_SEPARATOR [2018-01-21 06:12:28,804 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-01-21 06:12:28,817 INFO L266 ainManager$Toolchain]: [Toolchain 1]: Parser(s) successfully initialized [2018-01-21 06:12:28,821 INFO L222 ainManager$Toolchain]: [Toolchain 1]: Toolchain data selected. [2018-01-21 06:12:28,822 INFO L271 PluginConnector]: Initializing CDTParser... [2018-01-21 06:12:28,823 INFO L276 PluginConnector]: CDTParser initialized [2018-01-21 06:12:28,823 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-memsafety/memleaks_test1_false-valid-memtrack_true-termination.i [2018-01-21 06:12:29,037 INFO L304 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-01-21 06:12:29,042 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-01-21 06:12:29,043 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-01-21 06:12:29,043 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-01-21 06:12:29,049 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-01-21 06:12:29,050 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.01 06:12:29" (1/1) ... [2018-01-21 06:12:29,053 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@8a855a9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.01 06:12:29, skipping insertion in model container [2018-01-21 06:12:29,054 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.01 06:12:29" (1/1) ... [2018-01-21 06:12:29,072 INFO L153 Dispatcher]: Using SV-COMP mode [2018-01-21 06:12:29,123 INFO L153 Dispatcher]: Using SV-COMP mode [2018-01-21 06:12:29,228 INFO L450 PostProcessor]: Settings: Checked method=main [2018-01-21 06:12:29,240 INFO L450 PostProcessor]: Settings: Checked method=main [2018-01-21 06:12:29,247 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.01 06:12:29 WrapperNode [2018-01-21 06:12:29,248 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-01-21 06:12:29,248 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-01-21 06:12:29,248 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-01-21 06:12:29,248 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-01-21 06:12:29,260 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.01 06:12:29" (1/1) ... [2018-01-21 06:12:29,261 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.01 06:12:29" (1/1) ... [2018-01-21 06:12:29,271 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.01 06:12:29" (1/1) ... [2018-01-21 06:12:29,271 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.01 06:12:29" (1/1) ... [2018-01-21 06:12:29,275 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.01 06:12:29" (1/1) ... [2018-01-21 06:12:29,276 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.01 06:12:29" (1/1) ... [2018-01-21 06:12:29,277 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.01 06:12:29" (1/1) ... [2018-01-21 06:12:29,278 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-01-21 06:12:29,278 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-01-21 06:12:29,279 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-01-21 06:12:29,279 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-01-21 06:12:29,279 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.01 06:12:29" (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 06:12:29,326 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-01-21 06:12:29,326 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-01-21 06:12:29,326 INFO L136 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2018-01-21 06:12:29,326 INFO L136 BoogieDeclarations]: Found implementation of procedure entry_point [2018-01-21 06:12:29,326 INFO L136 BoogieDeclarations]: Found implementation of procedure main [2018-01-21 06:12:29,326 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.free [2018-01-21 06:12:29,326 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-01-21 06:12:29,326 INFO L128 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-01-21 06:12:29,327 INFO L128 BoogieDeclarations]: Found specification of procedure malloc [2018-01-21 06:12:29,327 INFO L128 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2018-01-21 06:12:29,327 INFO L128 BoogieDeclarations]: Found specification of procedure ldv_malloc [2018-01-21 06:12:29,327 INFO L128 BoogieDeclarations]: Found specification of procedure entry_point [2018-01-21 06:12:29,327 INFO L128 BoogieDeclarations]: Found specification of procedure main [2018-01-21 06:12:29,327 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-01-21 06:12:29,327 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-01-21 06:12:29,445 INFO L257 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-01-21 06:12:29,445 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.01 06:12:29 BoogieIcfgContainer [2018-01-21 06:12:29,446 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-01-21 06:12:29,446 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-01-21 06:12:29,446 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-01-21 06:12:29,448 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-01-21 06:12:29,448 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.01 06:12:29" (1/3) ... [2018-01-21 06:12:29,449 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1dc1e3c1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.01 06:12:29, skipping insertion in model container [2018-01-21 06:12:29,449 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.01 06:12:29" (2/3) ... [2018-01-21 06:12:29,450 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1dc1e3c1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.01 06:12:29, skipping insertion in model container [2018-01-21 06:12:29,450 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.01 06:12:29" (3/3) ... [2018-01-21 06:12:29,451 INFO L105 eAbstractionObserver]: Analyzing ICFG memleaks_test1_false-valid-memtrack_true-termination.i [2018-01-21 06:12:29,458 INFO L130 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-01-21 06:12:29,465 INFO L142 ceAbstractionStarter]: Appying trace abstraction to program that has 5 error locations. [2018-01-21 06:12:29,512 INFO L322 AbstractCegarLoop]: Interprodecural is true [2018-01-21 06:12:29,512 INFO L323 AbstractCegarLoop]: Hoare is true [2018-01-21 06:12:29,512 INFO L324 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-01-21 06:12:29,512 INFO L325 AbstractCegarLoop]: Backedges is TWOTRACK [2018-01-21 06:12:29,512 INFO L326 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-01-21 06:12:29,512 INFO L327 AbstractCegarLoop]: Difference is false [2018-01-21 06:12:29,512 INFO L328 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-01-21 06:12:29,512 INFO L333 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == ldv_mallocErr0EnsuresViolation======== [2018-01-21 06:12:29,513 INFO L87 2NestedWordAutomaton]: Mode: main mode - execution starts in main procedure [2018-01-21 06:12:29,527 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states. [2018-01-21 06:12:29,532 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-01-21 06:12:29,533 INFO L314 BasicCegarLoop]: Found error trace [2018-01-21 06:12:29,533 INFO L322 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-21 06:12:29,534 INFO L371 AbstractCegarLoop]: === Iteration 1 === [ldv_mallocErr0EnsuresViolation]=== [2018-01-21 06:12:29,539 INFO L82 PathProgramCache]: Analyzing trace with hash -294001656, now seen corresponding path program 1 times [2018-01-21 06:12:29,542 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-21 06:12:29,591 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-21 06:12:29,591 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-21 06:12:29,591 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-21 06:12:29,591 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-21 06:12:29,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-21 06:12:29,642 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-21 06:12:29,715 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 06:12:29,717 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-21 06:12:29,718 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-01-21 06:12:29,718 INFO L252 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-01-21 06:12:29,721 INFO L409 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-01-21 06:12:29,734 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-01-21 06:12:29,735 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-01-21 06:12:29,737 INFO L87 Difference]: Start difference. First operand 25 states. Second operand 3 states. [2018-01-21 06:12:29,838 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-21 06:12:29,839 INFO L93 Difference]: Finished difference Result 27 states and 27 transitions. [2018-01-21 06:12:29,839 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-01-21 06:12:29,907 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 10 [2018-01-21 06:12:29,907 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-21 06:12:29,915 INFO L225 Difference]: With dead ends: 27 [2018-01-21 06:12:29,915 INFO L226 Difference]: Without dead ends: 13 [2018-01-21 06:12:29,918 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 06:12:29,933 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states. [2018-01-21 06:12:29,944 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 13. [2018-01-21 06:12:29,944 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2018-01-21 06:12:29,945 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 12 transitions. [2018-01-21 06:12:29,946 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 12 transitions. Word has length 10 [2018-01-21 06:12:29,946 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-21 06:12:29,946 INFO L432 AbstractCegarLoop]: Abstraction has 13 states and 12 transitions. [2018-01-21 06:12:29,946 INFO L433 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-01-21 06:12:29,947 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 12 transitions. [2018-01-21 06:12:29,947 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2018-01-21 06:12:29,947 INFO L314 BasicCegarLoop]: Found error trace [2018-01-21 06:12:29,947 INFO L322 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-21 06:12:29,947 INFO L371 AbstractCegarLoop]: === Iteration 2 === [ldv_mallocErr0EnsuresViolation]=== [2018-01-21 06:12:29,947 INFO L82 PathProgramCache]: Analyzing trace with hash 932157066, now seen corresponding path program 1 times [2018-01-21 06:12:29,948 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-21 06:12:29,950 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-21 06:12:29,950 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-21 06:12:29,950 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-21 06:12:29,950 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-21 06:12:29,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-01-21 06:12:29,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-01-21 06:12:30,015 INFO L381 BasicCegarLoop]: Counterexample might be feasible [2018-01-21 06:12:30,023 WARN L343 cessorBacktranslator]: Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) [2018-01-21 06:12:30,024 WARN L343 cessorBacktranslator]: Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) [2018-01-21 06:12:30,033 INFO L322 AbstractCegarLoop]: Interprodecural is true [2018-01-21 06:12:30,033 INFO L323 AbstractCegarLoop]: Hoare is true [2018-01-21 06:12:30,033 INFO L324 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-01-21 06:12:30,034 INFO L325 AbstractCegarLoop]: Backedges is TWOTRACK [2018-01-21 06:12:30,034 INFO L326 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-01-21 06:12:30,034 INFO L327 AbstractCegarLoop]: Difference is false [2018-01-21 06:12:30,034 INFO L328 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-01-21 06:12:30,034 INFO L333 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == ULTIMATE.initErr0EnsuresViolation======== [2018-01-21 06:12:30,034 INFO L87 2NestedWordAutomaton]: Mode: main mode - execution starts in main procedure [2018-01-21 06:12:30,035 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states. [2018-01-21 06:12:30,036 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2018-01-21 06:12:30,036 INFO L314 BasicCegarLoop]: Found error trace [2018-01-21 06:12:30,036 INFO L322 BasicCegarLoop]: trace histogram [1, 1, 1] [2018-01-21 06:12:30,036 INFO L371 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.initErr0EnsuresViolation]=== [2018-01-21 06:12:30,036 INFO L82 PathProgramCache]: Analyzing trace with hash 52184, now seen corresponding path program 1 times [2018-01-21 06:12:30,036 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-21 06:12:30,037 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-21 06:12:30,038 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-21 06:12:30,038 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-21 06:12:30,038 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-21 06:12:30,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-01-21 06:12:30,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-01-21 06:12:30,048 INFO L381 BasicCegarLoop]: Counterexample might be feasible [2018-01-21 06:12:30,049 WARN L343 cessorBacktranslator]: Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) [2018-01-21 06:12:30,050 INFO L322 AbstractCegarLoop]: Interprodecural is true [2018-01-21 06:12:30,050 INFO L323 AbstractCegarLoop]: Hoare is true [2018-01-21 06:12:30,050 INFO L324 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-01-21 06:12:30,050 INFO L325 AbstractCegarLoop]: Backedges is TWOTRACK [2018-01-21 06:12:30,050 INFO L326 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-01-21 06:12:30,050 INFO L327 AbstractCegarLoop]: Difference is false [2018-01-21 06:12:30,050 INFO L328 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-01-21 06:12:30,050 INFO L333 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == ULTIMATE.startErr0EnsuresViolation======== [2018-01-21 06:12:30,051 INFO L87 2NestedWordAutomaton]: Mode: main mode - execution starts in main procedure [2018-01-21 06:12:30,051 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states. [2018-01-21 06:12:30,052 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2018-01-21 06:12:30,052 INFO L314 BasicCegarLoop]: Found error trace [2018-01-21 06:12:30,052 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 06:12:30,052 INFO L371 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0EnsuresViolation]=== [2018-01-21 06:12:30,052 INFO L82 PathProgramCache]: Analyzing trace with hash 1087807266, now seen corresponding path program 1 times [2018-01-21 06:12:30,052 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-21 06:12:30,054 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-21 06:12:30,054 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-21 06:12:30,054 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-21 06:12:30,054 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-21 06:12:30,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-01-21 06:12:30,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-01-21 06:12:30,076 INFO L381 BasicCegarLoop]: Counterexample might be feasible [2018-01-21 06:12:30,077 WARN L343 cessorBacktranslator]: Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) [2018-01-21 06:12:30,078 WARN L343 cessorBacktranslator]: Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) [2018-01-21 06:12:30,078 WARN L343 cessorBacktranslator]: Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) [2018-01-21 06:12:30,079 WARN L343 cessorBacktranslator]: Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) [2018-01-21 06:12:30,079 WARN L343 cessorBacktranslator]: Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) [2018-01-21 06:12:30,081 INFO L322 AbstractCegarLoop]: Interprodecural is true [2018-01-21 06:12:30,081 INFO L323 AbstractCegarLoop]: Hoare is true [2018-01-21 06:12:30,081 INFO L324 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-01-21 06:12:30,081 INFO L325 AbstractCegarLoop]: Backedges is TWOTRACK [2018-01-21 06:12:30,081 INFO L326 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-01-21 06:12:30,081 INFO L327 AbstractCegarLoop]: Difference is false [2018-01-21 06:12:30,081 INFO L328 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-01-21 06:12:30,081 INFO L333 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == mainErr0EnsuresViolation======== [2018-01-21 06:12:30,081 INFO L87 2NestedWordAutomaton]: Mode: main mode - execution starts in main procedure [2018-01-21 06:12:30,082 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states. [2018-01-21 06:12:30,082 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2018-01-21 06:12:30,083 INFO L314 BasicCegarLoop]: Found error trace [2018-01-21 06:12:30,083 INFO L322 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-21 06:12:30,083 INFO L371 AbstractCegarLoop]: === Iteration 1 === [mainErr0EnsuresViolation]=== [2018-01-21 06:12:30,083 INFO L82 PathProgramCache]: Analyzing trace with hash 1404482350, now seen corresponding path program 1 times [2018-01-21 06:12:30,083 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-21 06:12:30,084 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-21 06:12:30,084 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-21 06:12:30,084 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-21 06:12:30,085 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-21 06:12:30,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-21 06:12:30,092 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-21 06:12:30,131 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 06:12:30,131 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-21 06:12:30,131 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-01-21 06:12:30,131 INFO L252 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-01-21 06:12:30,132 INFO L409 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-01-21 06:12:30,132 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-01-21 06:12:30,132 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-01-21 06:12:30,132 INFO L87 Difference]: Start difference. First operand 25 states. Second operand 3 states. [2018-01-21 06:12:30,206 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-21 06:12:30,206 INFO L93 Difference]: Finished difference Result 27 states and 27 transitions. [2018-01-21 06:12:30,207 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-01-21 06:12:30,207 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 15 [2018-01-21 06:12:30,207 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-21 06:12:30,207 INFO L225 Difference]: With dead ends: 27 [2018-01-21 06:12:30,207 INFO L226 Difference]: Without dead ends: 0 [2018-01-21 06:12:30,208 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 06:12:30,208 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-01-21 06:12:30,208 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-01-21 06:12:30,208 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-01-21 06:12:30,208 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-01-21 06:12:30,208 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 15 [2018-01-21 06:12:30,209 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-21 06:12:30,209 INFO L432 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-01-21 06:12:30,209 INFO L433 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-01-21 06:12:30,209 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-01-21 06:12:30,209 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-01-21 06:12:30,211 INFO L322 AbstractCegarLoop]: Interprodecural is true [2018-01-21 06:12:30,212 INFO L323 AbstractCegarLoop]: Hoare is true [2018-01-21 06:12:30,212 INFO L324 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-01-21 06:12:30,212 INFO L325 AbstractCegarLoop]: Backedges is TWOTRACK [2018-01-21 06:12:30,212 INFO L326 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-01-21 06:12:30,212 INFO L327 AbstractCegarLoop]: Difference is false [2018-01-21 06:12:30,212 INFO L328 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-01-21 06:12:30,212 INFO L333 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == entry_pointErr0EnsuresViolation======== [2018-01-21 06:12:30,212 INFO L87 2NestedWordAutomaton]: Mode: main mode - execution starts in main procedure [2018-01-21 06:12:30,213 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states. [2018-01-21 06:12:30,214 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2018-01-21 06:12:30,214 INFO L314 BasicCegarLoop]: Found error trace [2018-01-21 06:12:30,214 INFO L322 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-21 06:12:30,215 INFO L371 AbstractCegarLoop]: === Iteration 1 === [entry_pointErr0EnsuresViolation]=== [2018-01-21 06:12:30,215 INFO L82 PathProgramCache]: Analyzing trace with hash -1165017671, now seen corresponding path program 1 times [2018-01-21 06:12:30,215 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-21 06:12:30,216 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-21 06:12:30,217 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-21 06:12:30,217 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-21 06:12:30,217 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-21 06:12:30,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-21 06:12:30,227 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-21 06:12:30,269 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 06:12:30,269 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-21 06:12:30,269 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-01-21 06:12:30,269 INFO L252 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-01-21 06:12:30,270 INFO L409 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-01-21 06:12:30,270 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-01-21 06:12:30,270 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-01-21 06:12:30,270 INFO L87 Difference]: Start difference. First operand 25 states. Second operand 3 states. [2018-01-21 06:12:30,306 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-21 06:12:30,306 INFO L93 Difference]: Finished difference Result 27 states and 27 transitions. [2018-01-21 06:12:30,306 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-01-21 06:12:30,307 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 13 [2018-01-21 06:12:30,307 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-21 06:12:30,307 INFO L225 Difference]: With dead ends: 27 [2018-01-21 06:12:30,307 INFO L226 Difference]: Without dead ends: 0 [2018-01-21 06:12:30,307 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 06:12:30,308 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-01-21 06:12:30,308 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-01-21 06:12:30,308 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-01-21 06:12:30,308 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-01-21 06:12:30,308 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 13 [2018-01-21 06:12:30,308 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-21 06:12:30,308 INFO L432 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-01-21 06:12:30,308 INFO L433 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-01-21 06:12:30,308 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-01-21 06:12:30,308 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-01-21 06:12:30,310 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.01 06:12:30 BoogieIcfgContainer [2018-01-21 06:12:30,310 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-01-21 06:12:30,311 INFO L168 Benchmark]: Toolchain (without parser) took 1273.96 ms. Allocated memory was 304.1 MB in the beginning and 462.9 MB in the end (delta: 158.9 MB). Free memory was 261.2 MB in the beginning and 404.6 MB in the end (delta: -143.4 MB). Peak memory consumption was 15.5 MB. Max. memory is 5.3 GB. [2018-01-21 06:12:30,312 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 304.1 MB. Free memory is still 268.2 MB. There was no memory consumed. Max. memory is 5.3 GB. [2018-01-21 06:12:30,312 INFO L168 Benchmark]: CACSL2BoogieTranslator took 205.05 ms. Allocated memory is still 304.1 MB. Free memory was 261.2 MB in the beginning and 249.1 MB in the end (delta: 12.1 MB). Peak memory consumption was 12.1 MB. Max. memory is 5.3 GB. [2018-01-21 06:12:30,313 INFO L168 Benchmark]: Boogie Preprocessor took 30.01 ms. Allocated memory is still 304.1 MB. Free memory was 249.1 MB in the beginning and 247.1 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 5.3 GB. [2018-01-21 06:12:30,313 INFO L168 Benchmark]: RCFGBuilder took 167.21 ms. Allocated memory is still 304.1 MB. Free memory was 247.1 MB in the beginning and 234.1 MB in the end (delta: 13.0 MB). Peak memory consumption was 13.0 MB. Max. memory is 5.3 GB. [2018-01-21 06:12:30,313 INFO L168 Benchmark]: TraceAbstraction took 864.35 ms. Allocated memory was 304.1 MB in the beginning and 462.9 MB in the end (delta: 158.9 MB). Free memory was 234.1 MB in the beginning and 404.6 MB in the end (delta: -170.5 MB). There was no memory consumed. Max. memory is 5.3 GB. [2018-01-21 06:12:30,315 INFO L344 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 304.1 MB. Free memory is still 268.2 MB. There was no memory consumed. Max. memory is 5.3 GB. * CACSL2BoogieTranslator took 205.05 ms. Allocated memory is still 304.1 MB. Free memory was 261.2 MB in the beginning and 249.1 MB in the end (delta: 12.1 MB). Peak memory consumption was 12.1 MB. Max. memory is 5.3 GB. * Boogie Preprocessor took 30.01 ms. Allocated memory is still 304.1 MB. Free memory was 249.1 MB in the beginning and 247.1 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 5.3 GB. * RCFGBuilder took 167.21 ms. Allocated memory is still 304.1 MB. Free memory was 247.1 MB in the beginning and 234.1 MB in the end (delta: 13.0 MB). Peak memory consumption was 13.0 MB. Max. memory is 5.3 GB. * TraceAbstraction took 864.35 ms. Allocated memory was 304.1 MB in the beginning and 462.9 MB in the end (delta: 158.9 MB). Free memory was 234.1 MB in the beginning and 404.6 MB in the end (delta: -170.5 MB). There was no memory consumed. Max. memory is 5.3 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) - GenericResult: Unfinished Backtranslation Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) - GenericResult: Unfinished Backtranslation Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) - GenericResult: Unfinished Backtranslation Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) - GenericResult: Unfinished Backtranslation Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) - 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: [L1439] CALL entry_point() [L1435] CALL ldv_malloc(sizeof(int)) VAL [\old(size)=4] [L1073] COND TRUE __VERIFIER_nondet_int() [L1074] EXPR, FCALL malloc(size) VAL [\old(size)=4, malloc(size)={6:0}, size=4] [L1074] return malloc(size); VAL [\old(size)=4, \result={6:0}, malloc(size)={6:0}, size=4] - StatisticsResult: Ultimate Automizer benchmark data for error location: ldv_mallocErr0EnsuresViolation CFG has 5 procedures, 25 locations, 5 error locations. UNSAFE Result, 0.5s OverallTime, 2 OverallIterations, 1 TraceHistogramMax, 0.1s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 16 SDtfs, 5 SDslu, 1 SDs, 0 SdLazy, 14 SolverSat, 10 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=25occurred 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, 22 NumberOfCodeBlocks, 22 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 9 ConstructedInterpolants, 0 QuantifiedInterpolants, 135 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, 25 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=25occurred 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: [L1439] CALL entry_point() [L1435] CALL, EXPR ldv_malloc(sizeof(int)) VAL [\old(size)=4] [L1073] COND FALSE !(__VERIFIER_nondet_int()) [L1076] RET return 0; VAL [\old(size)=4, \result={0:0}, size=4] [L1435] EXPR ldv_malloc(sizeof(int)) VAL [ldv_malloc(sizeof(int))={0:0}] [L1435] RET int *p = (int *)ldv_malloc(sizeof(int)); [L1439] entry_point() - StatisticsResult: Ultimate Automizer benchmark data for error location: ULTIMATE.startErr0EnsuresViolation CFG has 5 procedures, 25 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=25occurred 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, 17 NumberOfCodeBlocks, 17 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: 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: mainErr0EnsuresViolation CFG has 5 procedures, 25 locations, 5 error locations. SAFE Result, 0.1s OverallTime, 1 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 16 SDtfs, 2 SDslu, 1 SDs, 0 SdLazy, 14 SolverSat, 6 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=25occurred 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, 15 NumberOfCodeBlocks, 15 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 14 ConstructedInterpolants, 0 QuantifiedInterpolants, 476 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: 1434]: 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, 25 locations, 5 error locations. SAFE Result, 0.0s OverallTime, 1 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 16 SDtfs, 3 SDslu, 1 SDs, 0 SdLazy, 14 SolverSat, 8 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=25occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 13 NumberOfCodeBlocks, 13 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 12 ConstructedInterpolants, 0 QuantifiedInterpolants, 312 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 RESULT: Ultimate proved your program to be incorrect! Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/memleaks_test1_false-valid-memtrack_true-termination.i_mempurity-32bit-Automizer_Taipan+AI_EQ_precise.epf_AutomizerC.xml/Csv-Benchmark-0-2018-01-21_06-12-30-323.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/memleaks_test1_false-valid-memtrack_true-termination.i_mempurity-32bit-Automizer_Taipan+AI_EQ_precise.epf_AutomizerC.xml/Csv-TraceAbstractionBenchmarks-0-2018-01-21_06-12-30-323.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/memleaks_test1_false-valid-memtrack_true-termination.i_mempurity-32bit-Automizer_Taipan+AI_EQ_precise.epf_AutomizerC.xml/Csv-TraceAbstractionBenchmarks-1-2018-01-21_06-12-30-323.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/memleaks_test1_false-valid-memtrack_true-termination.i_mempurity-32bit-Automizer_Taipan+AI_EQ_precise.epf_AutomizerC.xml/Csv-TraceAbstractionBenchmarks-2-2018-01-21_06-12-30-323.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/memleaks_test1_false-valid-memtrack_true-termination.i_mempurity-32bit-Automizer_Taipan+AI_EQ_precise.epf_AutomizerC.xml/Csv-TraceAbstractionBenchmarks-3-2018-01-21_06-12-30-323.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/memleaks_test1_false-valid-memtrack_true-termination.i_mempurity-32bit-Automizer_Taipan+AI_EQ_precise.epf_AutomizerC.xml/Csv-TraceAbstractionBenchmarks-4-2018-01-21_06-12-30-323.csv Received shutdown request...