java -Xmx6000000000 -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data ./data --generate-csv --csv-dir ../../../releaseScripts/default/UAutomizer-linux/csv -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/ai/eq-bench/svcomp-DerefFreeMemtrack-32bit-Automizer_Taipan+AI_EQ_imprecise.epf -i ../../../trunk/examples/svcomp/ldv-memsafety/memleaks_test3_true-valid-memsafety_true-termination.i -------------------------------------------------------------------------------- This is Ultimate 0.1.23-6b94a2f [2018-01-24 17:27:52,679 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-01-24 17:27:52,680 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-01-24 17:27:52,693 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-01-24 17:27:52,693 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-01-24 17:27:52,694 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-01-24 17:27:52,695 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-01-24 17:27:52,696 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-01-24 17:27:52,698 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-01-24 17:27:52,698 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-01-24 17:27:52,699 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-01-24 17:27:52,699 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-01-24 17:27:52,700 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-01-24 17:27:52,701 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-01-24 17:27:52,702 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-01-24 17:27:52,704 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-01-24 17:27:52,707 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-01-24 17:27:52,709 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-01-24 17:27:52,710 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-01-24 17:27:52,712 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-01-24 17:27:52,714 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-01-24 17:27:52,719 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-01-24 17:27:52,720 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-01-24 17:27:52,720 INFO L98 SettingsManager]: Beginning loading settings from /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/ai/eq-bench/svcomp-DerefFreeMemtrack-32bit-Automizer_Taipan+AI_EQ_imprecise.epf [2018-01-24 17:27:52,731 INFO L110 SettingsManager]: Loading preferences was successful [2018-01-24 17:27:52,731 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-01-24 17:27:52,732 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-01-24 17:27:52,732 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-01-24 17:27:52,732 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-01-24 17:27:52,732 INFO L133 SettingsManager]: * Deactivate Weak Equivalences=true [2018-01-24 17:27:52,733 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=VPDomain [2018-01-24 17:27:52,733 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-01-24 17:27:52,733 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-01-24 17:27:52,734 INFO L133 SettingsManager]: * sizeof long=4 [2018-01-24 17:27:52,734 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-01-24 17:27:52,734 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-01-24 17:27:52,734 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-01-24 17:27:52,735 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-01-24 17:27:52,735 INFO L133 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2018-01-24 17:27:52,735 INFO L133 SettingsManager]: * Bitprecise bitfields=true [2018-01-24 17:27:52,735 INFO L133 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2018-01-24 17:27:52,735 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-01-24 17:27:52,735 INFO L133 SettingsManager]: * sizeof long double=12 [2018-01-24 17:27:52,736 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-01-24 17:27:52,736 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-01-24 17:27:52,736 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-01-24 17:27:52,736 INFO L133 SettingsManager]: * Add additional assume for each assert=false [2018-01-24 17:27:52,736 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-01-24 17:27:52,737 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-01-24 17:27:52,737 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-01-24 17:27:52,737 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-01-24 17:27:52,737 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-01-24 17:27:52,738 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-01-24 17:27:52,738 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-01-24 17:27:52,738 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-01-24 17:27:52,738 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-01-24 17:27:52,738 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-01-24 17:27:52,739 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-01-24 17:27:52,739 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-01-24 17:27:52,740 INFO L133 SettingsManager]: * TransformationType=HEAP_SEPARATOR [2018-01-24 17:27:52,773 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-01-24 17:27:52,783 INFO L266 ainManager$Toolchain]: [Toolchain 1]: Parser(s) successfully initialized [2018-01-24 17:27:52,786 INFO L222 ainManager$Toolchain]: [Toolchain 1]: Toolchain data selected. [2018-01-24 17:27:52,787 INFO L271 PluginConnector]: Initializing CDTParser... [2018-01-24 17:27:52,787 INFO L276 PluginConnector]: CDTParser initialized [2018-01-24 17:27:52,787 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-memsafety/memleaks_test3_true-valid-memsafety_true-termination.i [2018-01-24 17:27:52,968 INFO L304 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-01-24 17:27:52,976 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-01-24 17:27:52,977 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-01-24 17:27:52,977 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-01-24 17:27:52,984 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-01-24 17:27:52,985 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.01 05:27:52" (1/1) ... [2018-01-24 17:27:52,989 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@22982850 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 05:27:52, skipping insertion in model container [2018-01-24 17:27:52,989 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.01 05:27:52" (1/1) ... [2018-01-24 17:27:53,008 INFO L153 Dispatcher]: Using SV-COMP mode [2018-01-24 17:27:53,058 INFO L153 Dispatcher]: Using SV-COMP mode [2018-01-24 17:27:53,172 INFO L450 PostProcessor]: Settings: Checked method=main [2018-01-24 17:27:53,184 INFO L450 PostProcessor]: Settings: Checked method=main [2018-01-24 17:27:53,190 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 05:27:53 WrapperNode [2018-01-24 17:27:53,190 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-01-24 17:27:53,191 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-01-24 17:27:53,191 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-01-24 17:27:53,191 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-01-24 17:27:53,206 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 05:27:53" (1/1) ... [2018-01-24 17:27:53,206 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 05:27:53" (1/1) ... [2018-01-24 17:27:53,217 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 05:27:53" (1/1) ... [2018-01-24 17:27:53,217 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 05:27:53" (1/1) ... [2018-01-24 17:27:53,221 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 05:27:53" (1/1) ... [2018-01-24 17:27:53,222 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 05:27:53" (1/1) ... [2018-01-24 17:27:53,223 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 05:27:53" (1/1) ... [2018-01-24 17:27:53,225 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-01-24 17:27:53,225 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-01-24 17:27:53,225 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-01-24 17:27:53,225 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-01-24 17:27:53,226 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 05:27:53" (1/1) ... No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-01-24 17:27:53,272 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-01-24 17:27:53,272 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-01-24 17:27:53,272 INFO L136 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2018-01-24 17:27:53,273 INFO L136 BoogieDeclarations]: Found implementation of procedure h_safe [2018-01-24 17:27:53,273 INFO L136 BoogieDeclarations]: Found implementation of procedure entry_point [2018-01-24 17:27:53,273 INFO L136 BoogieDeclarations]: Found implementation of procedure main [2018-01-24 17:27:53,273 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.free [2018-01-24 17:27:53,273 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-01-24 17:27:53,273 INFO L128 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-01-24 17:27:53,273 INFO L128 BoogieDeclarations]: Found specification of procedure malloc [2018-01-24 17:27:53,273 INFO L128 BoogieDeclarations]: Found specification of procedure free [2018-01-24 17:27:53,273 INFO L128 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2018-01-24 17:27:53,273 INFO L128 BoogieDeclarations]: Found specification of procedure ldv_malloc [2018-01-24 17:27:53,274 INFO L128 BoogieDeclarations]: Found specification of procedure h_safe [2018-01-24 17:27:53,274 INFO L128 BoogieDeclarations]: Found specification of procedure entry_point [2018-01-24 17:27:53,274 INFO L128 BoogieDeclarations]: Found specification of procedure main [2018-01-24 17:27:53,274 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-01-24 17:27:53,274 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-01-24 17:27:53,403 INFO L257 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-01-24 17:27:53,403 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.01 05:27:53 BoogieIcfgContainer [2018-01-24 17:27:53,403 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-01-24 17:27:53,404 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-01-24 17:27:53,404 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-01-24 17:27:53,406 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-01-24 17:27:53,406 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.01 05:27:52" (1/3) ... [2018-01-24 17:27:53,407 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@68412982 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.01 05:27:53, skipping insertion in model container [2018-01-24 17:27:53,407 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 05:27:53" (2/3) ... [2018-01-24 17:27:53,408 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@68412982 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.01 05:27:53, skipping insertion in model container [2018-01-24 17:27:53,408 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.01 05:27:53" (3/3) ... [2018-01-24 17:27:53,409 INFO L105 eAbstractionObserver]: Analyzing ICFG memleaks_test3_true-valid-memsafety_true-termination.i [2018-01-24 17:27:53,417 INFO L130 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-01-24 17:27:53,423 INFO L142 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2018-01-24 17:27:53,467 INFO L322 AbstractCegarLoop]: Interprodecural is true [2018-01-24 17:27:53,467 INFO L323 AbstractCegarLoop]: Hoare is true [2018-01-24 17:27:53,467 INFO L324 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-01-24 17:27:53,467 INFO L325 AbstractCegarLoop]: Backedges is TWOTRACK [2018-01-24 17:27:53,467 INFO L326 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-01-24 17:27:53,467 INFO L327 AbstractCegarLoop]: Difference is false [2018-01-24 17:27:53,467 INFO L328 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-01-24 17:27:53,467 INFO L333 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-01-24 17:27:53,468 INFO L87 2NestedWordAutomaton]: Mode: main mode - execution starts in main procedure [2018-01-24 17:27:53,482 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states. [2018-01-24 17:27:53,487 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2018-01-24 17:27:53,488 INFO L314 BasicCegarLoop]: Found error trace [2018-01-24 17:27:53,489 INFO L322 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-24 17:27:53,489 INFO L371 AbstractCegarLoop]: === Iteration 1 === [mainErr0EnsuresViolation, entry_pointErr0RequiresViolation, entry_pointErr1RequiresViolation]=== [2018-01-24 17:27:53,495 INFO L82 PathProgramCache]: Analyzing trace with hash -36513995, now seen corresponding path program 1 times [2018-01-24 17:27:53,498 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-24 17:27:53,549 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 17:27:53,549 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-24 17:27:53,549 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 17:27:53,549 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-24 17:27:53,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-24 17:27:53,599 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-24 17:27:53,755 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-24 17:27:53,757 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-24 17:27:53,758 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-01-24 17:27:53,758 INFO L252 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-01-24 17:27:53,760 INFO L409 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-01-24 17:27:53,775 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-01-24 17:27:53,775 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-01-24 17:27:53,777 INFO L87 Difference]: Start difference. First operand 29 states. Second operand 7 states. [2018-01-24 17:27:53,916 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-24 17:27:53,917 INFO L93 Difference]: Finished difference Result 39 states and 41 transitions. [2018-01-24 17:27:53,917 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-01-24 17:27:53,918 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 18 [2018-01-24 17:27:53,919 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-24 17:27:53,928 INFO L225 Difference]: With dead ends: 39 [2018-01-24 17:27:53,928 INFO L226 Difference]: Without dead ends: 35 [2018-01-24 17:27:53,932 INFO L525 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-01-24 17:27:53,945 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2018-01-24 17:27:53,959 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 34. [2018-01-24 17:27:53,960 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2018-01-24 17:27:53,961 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 37 transitions. [2018-01-24 17:27:53,962 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 37 transitions. Word has length 18 [2018-01-24 17:27:53,962 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-24 17:27:53,962 INFO L432 AbstractCegarLoop]: Abstraction has 34 states and 37 transitions. [2018-01-24 17:27:53,963 INFO L433 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-01-24 17:27:53,963 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 37 transitions. [2018-01-24 17:27:53,963 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2018-01-24 17:27:53,963 INFO L314 BasicCegarLoop]: Found error trace [2018-01-24 17:27:53,963 INFO L322 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-24 17:27:53,964 INFO L371 AbstractCegarLoop]: === Iteration 2 === [mainErr0EnsuresViolation, entry_pointErr0RequiresViolation, entry_pointErr1RequiresViolation]=== [2018-01-24 17:27:53,964 INFO L82 PathProgramCache]: Analyzing trace with hash -36513994, now seen corresponding path program 1 times [2018-01-24 17:27:53,964 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-24 17:27:53,965 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 17:27:53,966 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-24 17:27:53,966 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 17:27:53,966 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-24 17:27:53,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-24 17:27:53,983 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-24 17:27:54,064 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-24 17:27:54,064 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-24 17:27:54,065 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-01-24 17:27:54,065 INFO L252 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-01-24 17:27:54,066 INFO L409 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-01-24 17:27:54,067 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-01-24 17:27:54,067 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-01-24 17:27:54,067 INFO L87 Difference]: Start difference. First operand 34 states and 37 transitions. Second operand 7 states. [2018-01-24 17:27:54,118 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-24 17:27:54,118 INFO L93 Difference]: Finished difference Result 37 states and 39 transitions. [2018-01-24 17:27:54,118 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-01-24 17:27:54,119 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 18 [2018-01-24 17:27:54,119 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-24 17:27:54,121 INFO L225 Difference]: With dead ends: 37 [2018-01-24 17:27:54,121 INFO L226 Difference]: Without dead ends: 36 [2018-01-24 17:27:54,122 INFO L525 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-01-24 17:27:54,123 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2018-01-24 17:27:54,127 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 34. [2018-01-24 17:27:54,127 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2018-01-24 17:27:54,129 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 36 transitions. [2018-01-24 17:27:54,129 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 36 transitions. Word has length 18 [2018-01-24 17:27:54,129 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-24 17:27:54,129 INFO L432 AbstractCegarLoop]: Abstraction has 34 states and 36 transitions. [2018-01-24 17:27:54,129 INFO L433 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-01-24 17:27:54,130 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 36 transitions. [2018-01-24 17:27:54,130 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2018-01-24 17:27:54,130 INFO L314 BasicCegarLoop]: Found error trace [2018-01-24 17:27:54,131 INFO L322 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-24 17:27:54,131 INFO L371 AbstractCegarLoop]: === Iteration 3 === [mainErr0EnsuresViolation, entry_pointErr0RequiresViolation, entry_pointErr1RequiresViolation]=== [2018-01-24 17:27:54,131 INFO L82 PathProgramCache]: Analyzing trace with hash 133826739, now seen corresponding path program 1 times [2018-01-24 17:27:54,131 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-24 17:27:54,133 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 17:27:54,133 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-24 17:27:54,133 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 17:27:54,133 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-24 17:27:54,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-24 17:27:54,153 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-24 17:27:54,227 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-24 17:27:54,228 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-24 17:27:54,228 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-01-24 17:27:54,228 INFO L252 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-01-24 17:27:54,228 INFO L409 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-01-24 17:27:54,228 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-01-24 17:27:54,229 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2018-01-24 17:27:54,229 INFO L87 Difference]: Start difference. First operand 34 states and 36 transitions. Second operand 8 states. [2018-01-24 17:27:54,283 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-24 17:27:54,283 INFO L93 Difference]: Finished difference Result 34 states and 36 transitions. [2018-01-24 17:27:54,283 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-01-24 17:27:54,284 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 20 [2018-01-24 17:27:54,284 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-24 17:27:54,284 INFO L225 Difference]: With dead ends: 34 [2018-01-24 17:27:54,284 INFO L226 Difference]: Without dead ends: 33 [2018-01-24 17:27:54,285 INFO L525 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2018-01-24 17:27:54,285 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2018-01-24 17:27:54,288 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 33. [2018-01-24 17:27:54,288 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33 states. [2018-01-24 17:27:54,289 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 35 transitions. [2018-01-24 17:27:54,289 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 35 transitions. Word has length 20 [2018-01-24 17:27:54,289 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-24 17:27:54,289 INFO L432 AbstractCegarLoop]: Abstraction has 33 states and 35 transitions. [2018-01-24 17:27:54,289 INFO L433 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-01-24 17:27:54,289 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 35 transitions. [2018-01-24 17:27:54,290 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2018-01-24 17:27:54,290 INFO L314 BasicCegarLoop]: Found error trace [2018-01-24 17:27:54,290 INFO L322 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-24 17:27:54,290 INFO L371 AbstractCegarLoop]: === Iteration 4 === [mainErr0EnsuresViolation, entry_pointErr0RequiresViolation, entry_pointErr1RequiresViolation]=== [2018-01-24 17:27:54,290 INFO L82 PathProgramCache]: Analyzing trace with hash 133826740, now seen corresponding path program 1 times [2018-01-24 17:27:54,291 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-24 17:27:54,292 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 17:27:54,292 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-24 17:27:54,292 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 17:27:54,292 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-24 17:27:54,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-24 17:27:54,303 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-24 17:27:54,394 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-24 17:27:54,394 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-24 17:27:54,394 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-01-24 17:27:54,394 INFO L252 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-01-24 17:27:54,395 INFO L409 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-01-24 17:27:54,395 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-01-24 17:27:54,395 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2018-01-24 17:27:54,395 INFO L87 Difference]: Start difference. First operand 33 states and 35 transitions. Second operand 8 states. [2018-01-24 17:27:54,501 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-24 17:27:54,501 INFO L93 Difference]: Finished difference Result 35 states and 37 transitions. [2018-01-24 17:27:54,502 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-01-24 17:27:54,502 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 20 [2018-01-24 17:27:54,502 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-24 17:27:54,503 INFO L225 Difference]: With dead ends: 35 [2018-01-24 17:27:54,503 INFO L226 Difference]: Without dead ends: 34 [2018-01-24 17:27:54,503 INFO L525 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2018-01-24 17:27:54,503 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2018-01-24 17:27:54,505 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 24. [2018-01-24 17:27:54,506 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2018-01-24 17:27:54,506 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 25 transitions. [2018-01-24 17:27:54,506 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 25 transitions. Word has length 20 [2018-01-24 17:27:54,506 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-24 17:27:54,507 INFO L432 AbstractCegarLoop]: Abstraction has 24 states and 25 transitions. [2018-01-24 17:27:54,507 INFO L433 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-01-24 17:27:54,507 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 25 transitions. [2018-01-24 17:27:54,507 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2018-01-24 17:27:54,507 INFO L314 BasicCegarLoop]: Found error trace [2018-01-24 17:27:54,507 INFO L322 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-24 17:27:54,507 INFO L371 AbstractCegarLoop]: === Iteration 5 === [mainErr0EnsuresViolation, entry_pointErr0RequiresViolation, entry_pointErr1RequiresViolation]=== [2018-01-24 17:27:54,508 INFO L82 PathProgramCache]: Analyzing trace with hash -730055936, now seen corresponding path program 1 times [2018-01-24 17:27:54,508 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-24 17:27:54,509 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 17:27:54,509 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-24 17:27:54,509 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 17:27:54,509 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-24 17:27:54,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-24 17:27:54,517 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-24 17:27:54,559 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-24 17:27:54,559 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-24 17:27:54,559 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-01-24 17:27:54,559 INFO L252 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-01-24 17:27:54,560 INFO L409 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-01-24 17:27:54,560 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-01-24 17:27:54,560 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-01-24 17:27:54,560 INFO L87 Difference]: Start difference. First operand 24 states and 25 transitions. Second operand 3 states. [2018-01-24 17:27:54,586 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-24 17:27:54,586 INFO L93 Difference]: Finished difference Result 36 states and 37 transitions. [2018-01-24 17:27:54,586 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-01-24 17:27:54,586 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 20 [2018-01-24 17:27:54,587 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-24 17:27:54,588 INFO L225 Difference]: With dead ends: 36 [2018-01-24 17:27:54,588 INFO L226 Difference]: Without dead ends: 32 [2018-01-24 17:27:54,588 INFO L525 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-01-24 17:27:54,588 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2018-01-24 17:27:54,592 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 31. [2018-01-24 17:27:54,592 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2018-01-24 17:27:54,593 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 32 transitions. [2018-01-24 17:27:54,593 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 32 transitions. Word has length 20 [2018-01-24 17:27:54,593 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-24 17:27:54,594 INFO L432 AbstractCegarLoop]: Abstraction has 31 states and 32 transitions. [2018-01-24 17:27:54,594 INFO L433 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-01-24 17:27:54,594 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 32 transitions. [2018-01-24 17:27:54,594 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2018-01-24 17:27:54,594 INFO L314 BasicCegarLoop]: Found error trace [2018-01-24 17:27:54,595 INFO L322 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-24 17:27:54,595 INFO L371 AbstractCegarLoop]: === Iteration 6 === [mainErr0EnsuresViolation, entry_pointErr0RequiresViolation, entry_pointErr1RequiresViolation]=== [2018-01-24 17:27:54,595 INFO L82 PathProgramCache]: Analyzing trace with hash -1161698987, now seen corresponding path program 1 times [2018-01-24 17:27:54,595 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-24 17:27:54,596 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 17:27:54,596 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-24 17:27:54,596 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 17:27:54,596 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-24 17:27:54,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-24 17:27:54,606 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-24 17:27:54,682 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-24 17:27:54,682 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-24 17:27:54,682 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-01-24 17:27:54,683 INFO L252 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-01-24 17:27:54,683 INFO L409 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-01-24 17:27:54,683 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-01-24 17:27:54,683 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-01-24 17:27:54,684 INFO L87 Difference]: Start difference. First operand 31 states and 32 transitions. Second operand 7 states. [2018-01-24 17:27:54,723 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-24 17:27:54,723 INFO L93 Difference]: Finished difference Result 38 states and 38 transitions. [2018-01-24 17:27:54,723 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-01-24 17:27:54,724 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 21 [2018-01-24 17:27:54,724 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-24 17:27:54,725 INFO L225 Difference]: With dead ends: 38 [2018-01-24 17:27:54,725 INFO L226 Difference]: Without dead ends: 26 [2018-01-24 17:27:54,725 INFO L525 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-01-24 17:27:54,726 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2018-01-24 17:27:54,729 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 24. [2018-01-24 17:27:54,729 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2018-01-24 17:27:54,730 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 24 transitions. [2018-01-24 17:27:54,730 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 24 transitions. Word has length 21 [2018-01-24 17:27:54,730 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-24 17:27:54,730 INFO L432 AbstractCegarLoop]: Abstraction has 24 states and 24 transitions. [2018-01-24 17:27:54,730 INFO L433 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-01-24 17:27:54,731 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 24 transitions. [2018-01-24 17:27:54,731 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2018-01-24 17:27:54,731 INFO L314 BasicCegarLoop]: Found error trace [2018-01-24 17:27:54,732 INFO L322 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-24 17:27:54,732 INFO L371 AbstractCegarLoop]: === Iteration 7 === [mainErr0EnsuresViolation, entry_pointErr0RequiresViolation, entry_pointErr1RequiresViolation]=== [2018-01-24 17:27:54,732 INFO L82 PathProgramCache]: Analyzing trace with hash -241367810, now seen corresponding path program 1 times [2018-01-24 17:27:54,732 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-24 17:27:54,734 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 17:27:54,734 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-24 17:27:54,734 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 17:27:54,734 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-24 17:27:54,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-24 17:27:54,746 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-24 17:27:54,802 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-24 17:27:54,802 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-24 17:27:54,802 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2018-01-24 17:27:54,802 INFO L252 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-01-24 17:27:54,803 INFO L409 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-01-24 17:27:54,803 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-01-24 17:27:54,803 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2018-01-24 17:27:54,804 INFO L87 Difference]: Start difference. First operand 24 states and 24 transitions. Second operand 8 states. [2018-01-24 17:27:54,881 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-24 17:27:54,881 INFO L93 Difference]: Finished difference Result 28 states and 27 transitions. [2018-01-24 17:27:54,904 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-01-24 17:27:54,905 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 22 [2018-01-24 17:27:54,905 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-24 17:27:54,905 INFO L225 Difference]: With dead ends: 28 [2018-01-24 17:27:54,905 INFO L226 Difference]: Without dead ends: 24 [2018-01-24 17:27:54,906 INFO L525 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2018-01-24 17:27:54,906 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states. [2018-01-24 17:27:54,908 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 24. [2018-01-24 17:27:54,908 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2018-01-24 17:27:54,908 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 23 transitions. [2018-01-24 17:27:54,909 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 23 transitions. Word has length 22 [2018-01-24 17:27:54,909 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-24 17:27:54,909 INFO L432 AbstractCegarLoop]: Abstraction has 24 states and 23 transitions. [2018-01-24 17:27:54,909 INFO L433 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-01-24 17:27:54,909 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 23 transitions. [2018-01-24 17:27:54,909 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2018-01-24 17:27:54,910 INFO L314 BasicCegarLoop]: Found error trace [2018-01-24 17:27:54,910 INFO L322 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-24 17:27:54,910 INFO L371 AbstractCegarLoop]: === Iteration 8 === [mainErr0EnsuresViolation, entry_pointErr0RequiresViolation, entry_pointErr1RequiresViolation]=== [2018-01-24 17:27:54,910 INFO L82 PathProgramCache]: Analyzing trace with hash 1102731031, now seen corresponding path program 1 times [2018-01-24 17:27:54,910 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-24 17:27:54,911 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 17:27:54,911 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-24 17:27:54,911 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 17:27:54,911 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-24 17:27:54,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-24 17:27:54,927 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-24 17:27:55,141 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-24 17:27:55,142 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-24 17:27:55,142 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2018-01-24 17:27:55,142 INFO L252 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-01-24 17:27:55,142 INFO L409 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-01-24 17:27:55,142 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-01-24 17:27:55,143 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2018-01-24 17:27:55,143 INFO L87 Difference]: Start difference. First operand 24 states and 23 transitions. Second operand 9 states. [2018-01-24 17:27:55,260 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-24 17:27:55,260 INFO L93 Difference]: Finished difference Result 24 states and 23 transitions. [2018-01-24 17:27:55,261 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-01-24 17:27:55,261 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 23 [2018-01-24 17:27:55,261 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-24 17:27:55,261 INFO L225 Difference]: With dead ends: 24 [2018-01-24 17:27:55,262 INFO L226 Difference]: Without dead ends: 0 [2018-01-24 17:27:55,262 INFO L525 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 5 SyntacticMatches, 2 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2018-01-24 17:27:55,262 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-01-24 17:27:55,262 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-01-24 17:27:55,263 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-01-24 17:27:55,263 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-01-24 17:27:55,263 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 23 [2018-01-24 17:27:55,263 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-24 17:27:55,263 INFO L432 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-01-24 17:27:55,263 INFO L433 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-01-24 17:27:55,263 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-01-24 17:27:55,263 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-01-24 17:27:55,267 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-01-24 17:27:55,286 INFO L397 ceAbstractionStarter]: At program point ldv_mallocENTRY(lines 1072 1078) the Hoare annotation is: (= |#valid| |old(#valid)|) [2018-01-24 17:27:55,286 INFO L401 ceAbstractionStarter]: For program point L1073(lines 1073 1077) no Hoare annotation was computed. [2018-01-24 17:27:55,286 INFO L401 ceAbstractionStarter]: For program point L1074'(line 1074) no Hoare annotation was computed. [2018-01-24 17:27:55,286 INFO L401 ceAbstractionStarter]: For program point ldv_mallocEXIT(lines 1072 1078) no Hoare annotation was computed. [2018-01-24 17:27:55,286 INFO L401 ceAbstractionStarter]: For program point ldv_mallocFINAL(lines 1072 1078) no Hoare annotation was computed. [2018-01-24 17:27:55,286 INFO L401 ceAbstractionStarter]: For program point L1074(line 1074) no Hoare annotation was computed. [2018-01-24 17:27:55,286 INFO L401 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(lines 1 1444) no Hoare annotation was computed. [2018-01-24 17:27:55,287 INFO L397 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(lines 1 1444) the Hoare annotation is: (= |#valid| |old(#valid)|) [2018-01-24 17:27:55,287 INFO L401 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(lines 1 1444) no Hoare annotation was computed. [2018-01-24 17:27:55,287 INFO L404 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(lines 1 1444) the Hoare annotation is: true [2018-01-24 17:27:55,287 INFO L401 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(lines 1 1444) no Hoare annotation was computed. [2018-01-24 17:27:55,287 INFO L404 ceAbstractionStarter]: At program point L1(lines 1 1444) the Hoare annotation is: true [2018-01-24 17:27:55,287 INFO L401 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(lines 1 1444) no Hoare annotation was computed. [2018-01-24 17:27:55,287 INFO L397 ceAbstractionStarter]: At program point mainENTRY(lines 1442 1444) the Hoare annotation is: (= |#valid| |old(#valid)|) [2018-01-24 17:27:55,287 INFO L401 ceAbstractionStarter]: For program point mainFINAL(lines 1442 1444) no Hoare annotation was computed. [2018-01-24 17:27:55,287 INFO L401 ceAbstractionStarter]: For program point mainEXIT(lines 1442 1444) no Hoare annotation was computed. [2018-01-24 17:27:55,287 INFO L401 ceAbstractionStarter]: For program point mainErr0EnsuresViolation(lines 1442 1444) no Hoare annotation was computed. [2018-01-24 17:27:55,288 INFO L397 ceAbstractionStarter]: At program point h_safeENTRY(lines 1433 1435) the Hoare annotation is: (= |#valid| |old(#valid)|) [2018-01-24 17:27:55,288 INFO L401 ceAbstractionStarter]: For program point L1434(line 1434) no Hoare annotation was computed. [2018-01-24 17:27:55,288 INFO L401 ceAbstractionStarter]: For program point h_safeFINAL(lines 1433 1435) no Hoare annotation was computed. [2018-01-24 17:27:55,288 INFO L401 ceAbstractionStarter]: For program point h_safeEXIT(lines 1433 1435) no Hoare annotation was computed. [2018-01-24 17:27:55,288 INFO L401 ceAbstractionStarter]: For program point L1438(line 1438) no Hoare annotation was computed. [2018-01-24 17:27:55,288 INFO L401 ceAbstractionStarter]: For program point L1439(line 1439) no Hoare annotation was computed. [2018-01-24 17:27:55,288 INFO L397 ceAbstractionStarter]: At program point entry_pointENTRY(lines 1437 1440) the Hoare annotation is: (= |#valid| |old(#valid)|) [2018-01-24 17:27:55,288 INFO L401 ceAbstractionStarter]: For program point entry_pointErr0RequiresViolation(lines 1 1444) no Hoare annotation was computed. [2018-01-24 17:27:55,288 INFO L401 ceAbstractionStarter]: For program point entry_pointErr1RequiresViolation(lines 1 1444) no Hoare annotation was computed. [2018-01-24 17:27:55,289 INFO L401 ceAbstractionStarter]: For program point L1439'(line 1439) no Hoare annotation was computed. [2018-01-24 17:27:55,289 INFO L401 ceAbstractionStarter]: For program point entry_pointEXIT(lines 1437 1440) no Hoare annotation was computed. [2018-01-24 17:27:55,289 INFO L401 ceAbstractionStarter]: For program point L1439'''(line 1439) no Hoare annotation was computed. [2018-01-24 17:27:55,292 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.01 05:27:55 BoogieIcfgContainer [2018-01-24 17:27:55,292 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-01-24 17:27:55,293 INFO L168 Benchmark]: Toolchain (without parser) took 2323.70 ms. Allocated memory was 309.3 MB in the beginning and 481.3 MB in the end (delta: 172.0 MB). Free memory was 266.2 MB in the beginning and 423.6 MB in the end (delta: -157.3 MB). Peak memory consumption was 14.6 MB. Max. memory is 5.3 GB. [2018-01-24 17:27:55,294 INFO L168 Benchmark]: CDTParser took 0.12 ms. Allocated memory is still 309.3 MB. Free memory is still 273.2 MB. There was no memory consumed. Max. memory is 5.3 GB. [2018-01-24 17:27:55,294 INFO L168 Benchmark]: CACSL2BoogieTranslator took 213.76 ms. Allocated memory is still 309.3 MB. Free memory was 266.2 MB in the beginning and 254.1 MB in the end (delta: 12.2 MB). Peak memory consumption was 12.2 MB. Max. memory is 5.3 GB. [2018-01-24 17:27:55,294 INFO L168 Benchmark]: Boogie Preprocessor took 33.85 ms. Allocated memory is still 309.3 MB. Free memory was 254.1 MB in the beginning and 252.1 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 5.3 GB. [2018-01-24 17:27:55,294 INFO L168 Benchmark]: RCFGBuilder took 178.52 ms. Allocated memory is still 309.3 MB. Free memory was 252.1 MB in the beginning and 238.1 MB in the end (delta: 14.0 MB). Peak memory consumption was 14.0 MB. Max. memory is 5.3 GB. [2018-01-24 17:27:55,295 INFO L168 Benchmark]: TraceAbstraction took 1887.98 ms. Allocated memory was 309.3 MB in the beginning and 481.3 MB in the end (delta: 172.0 MB). Free memory was 238.1 MB in the beginning and 423.6 MB in the end (delta: -185.5 MB). There was no memory consumed. Max. memory is 5.3 GB. [2018-01-24 17:27:55,296 INFO L344 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12 ms. Allocated memory is still 309.3 MB. Free memory is still 273.2 MB. There was no memory consumed. Max. memory is 5.3 GB. * CACSL2BoogieTranslator took 213.76 ms. Allocated memory is still 309.3 MB. Free memory was 266.2 MB in the beginning and 254.1 MB in the end (delta: 12.2 MB). Peak memory consumption was 12.2 MB. Max. memory is 5.3 GB. * Boogie Preprocessor took 33.85 ms. Allocated memory is still 309.3 MB. Free memory was 254.1 MB in the beginning and 252.1 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 5.3 GB. * RCFGBuilder took 178.52 ms. Allocated memory is still 309.3 MB. Free memory was 252.1 MB in the beginning and 238.1 MB in the end (delta: 14.0 MB). Peak memory consumption was 14.0 MB. Max. memory is 5.3 GB. * TraceAbstraction took 1887.98 ms. Allocated memory was 309.3 MB in the beginning and 481.3 MB in the end (delta: 172.0 MB). Free memory was 238.1 MB in the beginning and 423.6 MB in the end (delta: -185.5 MB). There was no memory consumed. Max. memory is 5.3 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 1442]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 1]: free always succeeds For all program executions holds that free always succeeds at this location - PositiveResult [Line: 1]: free always succeeds For all program executions holds that free always succeeds at this location - AllSpecificationsHoldResult: All specifications hold 3 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 6 procedures, 29 locations, 3 error locations. SAFE Result, 1.8s OverallTime, 8 OverallIterations, 1 TraceHistogramMax, 0.6s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 171 SDtfs, 28 SDslu, 739 SDs, 0 SdLazy, 334 SolverSat, 8 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 68 GetRequests, 20 SyntacticMatches, 2 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=34occurred in iteration=1, 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, 8 MinimizatonAttempts, 16 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 7 PreInvPairs, 7 NumberOfFragments, 17 HoareAnnotationTreeSize, 7 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 7 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 162 NumberOfCodeBlocks, 162 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 154 ConstructedInterpolants, 0 QuantifiedInterpolants, 10584 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, REUSE_STATISTICS: No data available RESULT: Ultimate proved your program to be correct! Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/memleaks_test3_true-valid-memsafety_true-termination.i_svcomp-DerefFreeMemtrack-32bit-Automizer_Taipan+AI_EQ_imprecise.epf_AutomizerC.xml/Csv-Benchmark-0-2018-01-24_17-27-55-303.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/memleaks_test3_true-valid-memsafety_true-termination.i_svcomp-DerefFreeMemtrack-32bit-Automizer_Taipan+AI_EQ_imprecise.epf_AutomizerC.xml/Csv-TraceAbstractionBenchmarks-0-2018-01-24_17-27-55-303.csv Received shutdown request...