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_imprecise.epf -i ../../../trunk/examples/svcomp/memsafety/20020406-1_false-valid-memtrack.i -------------------------------------------------------------------------------- This is Ultimate 0.1.23-2f49842 [2018-01-21 00:32:14,608 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-01-21 00:32:14,609 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-01-21 00:32:14,625 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-01-21 00:32:14,625 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-01-21 00:32:14,626 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-01-21 00:32:14,627 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-01-21 00:32:14,629 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-01-21 00:32:14,631 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-01-21 00:32:14,632 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-01-21 00:32:14,633 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... 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[2018-01-21 00:32:14,654 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_imprecise.epf [2018-01-21 00:32:14,662 INFO L110 SettingsManager]: Loading preferences was successful [2018-01-21 00:32:14,663 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-01-21 00:32:14,663 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-01-21 00:32:14,664 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-01-21 00:32:14,664 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-01-21 00:32:14,664 INFO L133 SettingsManager]: * Deactivate Weak Equivalences=true [2018-01-21 00:32:14,664 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=VPDomain [2018-01-21 00:32:14,664 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-01-21 00:32:14,665 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-01-21 00:32:14,665 INFO L133 SettingsManager]: * sizeof long=4 [2018-01-21 00:32:14,665 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-01-21 00:32:14,665 INFO L133 SettingsManager]: * Check allocation purity=true [2018-01-21 00:32:14,665 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-01-21 00:32:14,666 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-01-21 00:32:14,666 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-01-21 00:32:14,666 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-01-21 00:32:14,666 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-01-21 00:32:14,666 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-01-21 00:32:14,666 INFO L133 SettingsManager]: * sizeof long double=12 [2018-01-21 00:32:14,666 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-01-21 00:32:14,666 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-01-21 00:32:14,667 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-01-21 00:32:14,667 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-01-21 00:32:14,667 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-01-21 00:32:14,667 INFO L133 SettingsManager]: * Add additional assume for each assert=false [2018-01-21 00:32:14,667 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-01-21 00:32:14,668 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-01-21 00:32:14,668 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-01-21 00:32:14,668 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-01-21 00:32:14,668 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-01-21 00:32:14,668 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-01-21 00:32:14,668 INFO L133 SettingsManager]: * Stop after first violation was found=false [2018-01-21 00:32:14,668 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-01-21 00:32:14,668 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-01-21 00:32:14,668 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-01-21 00:32:14,668 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-01-21 00:32:14,669 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-01-21 00:32:14,669 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-01-21 00:32:14,669 INFO L133 SettingsManager]: * TransformationType=HEAP_SEPARATOR [2018-01-21 00:32:14,702 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-01-21 00:32:14,713 INFO L266 ainManager$Toolchain]: [Toolchain 1]: Parser(s) successfully initialized [2018-01-21 00:32:14,716 INFO L222 ainManager$Toolchain]: [Toolchain 1]: Toolchain data selected. [2018-01-21 00:32:14,717 INFO L271 PluginConnector]: Initializing CDTParser... [2018-01-21 00:32:14,718 INFO L276 PluginConnector]: CDTParser initialized [2018-01-21 00:32:14,718 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/memsafety/20020406-1_false-valid-memtrack.i [2018-01-21 00:32:14,911 INFO L304 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-01-21 00:32:14,915 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-01-21 00:32:14,915 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-01-21 00:32:14,915 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-01-21 00:32:14,921 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-01-21 00:32:14,922 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.01 12:32:14" (1/1) ... [2018-01-21 00:32:14,925 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@63d42229 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.01 12:32:14, skipping insertion in model container [2018-01-21 00:32:14,925 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.01 12:32:14" (1/1) ... [2018-01-21 00:32:14,939 INFO L153 Dispatcher]: Using SV-COMP mode [2018-01-21 00:32:14,987 INFO L153 Dispatcher]: Using SV-COMP mode [2018-01-21 00:32:15,123 INFO L450 PostProcessor]: Settings: Checked method=main [2018-01-21 00:32:15,158 INFO L450 PostProcessor]: Settings: Checked method=main [2018-01-21 00:32:15,170 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.01 12:32:15 WrapperNode [2018-01-21 00:32:15,171 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-01-21 00:32:15,172 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-01-21 00:32:15,172 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-01-21 00:32:15,172 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-01-21 00:32:15,185 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.01 12:32:15" (1/1) ... [2018-01-21 00:32:15,185 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.01 12:32:15" (1/1) ... [2018-01-21 00:32:15,197 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.01 12:32:15" (1/1) ... [2018-01-21 00:32:15,198 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.01 12:32:15" (1/1) ... [2018-01-21 00:32:15,208 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.01 12:32:15" (1/1) ... [2018-01-21 00:32:15,211 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.01 12:32:15" (1/1) ... [2018-01-21 00:32:15,214 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.01 12:32:15" (1/1) ... [2018-01-21 00:32:15,218 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-01-21 00:32:15,219 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-01-21 00:32:15,219 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-01-21 00:32:15,219 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-01-21 00:32:15,220 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.01 12:32:15" (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 00:32:15,274 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-01-21 00:32:15,274 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-01-21 00:32:15,274 INFO L136 BoogieDeclarations]: Found implementation of procedure FFmul [2018-01-21 00:32:15,275 INFO L136 BoogieDeclarations]: Found implementation of procedure DUPFFdeg [2018-01-21 00:32:15,275 INFO L136 BoogieDeclarations]: Found implementation of procedure DUPFFnew [2018-01-21 00:32:15,275 INFO L136 BoogieDeclarations]: Found implementation of procedure DUPFFfree [2018-01-21 00:32:15,275 INFO L136 BoogieDeclarations]: Found implementation of procedure DUPFFswap [2018-01-21 00:32:15,275 INFO L136 BoogieDeclarations]: Found implementation of procedure DUPFFcopy [2018-01-21 00:32:15,275 INFO L136 BoogieDeclarations]: Found implementation of procedure DUPFFshift_add [2018-01-21 00:32:15,276 INFO L136 BoogieDeclarations]: Found implementation of procedure DUPFFexgcd [2018-01-21 00:32:15,276 INFO L136 BoogieDeclarations]: Found implementation of procedure main [2018-01-21 00:32:15,276 INFO L128 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2018-01-21 00:32:15,276 INFO L128 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2018-01-21 00:32:15,276 INFO L128 BoogieDeclarations]: Found specification of procedure write~int [2018-01-21 00:32:15,276 INFO L128 BoogieDeclarations]: Found specification of procedure read~int [2018-01-21 00:32:15,276 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.free [2018-01-21 00:32:15,276 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-01-21 00:32:15,277 INFO L128 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-01-21 00:32:15,277 INFO L128 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2018-01-21 00:32:15,277 INFO L136 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2018-01-21 00:32:15,277 INFO L128 BoogieDeclarations]: Found specification of procedure malloc [2018-01-21 00:32:15,277 INFO L128 BoogieDeclarations]: Found specification of procedure abort [2018-01-21 00:32:15,277 INFO L128 BoogieDeclarations]: Found specification of procedure memset [2018-01-21 00:32:15,278 INFO L128 BoogieDeclarations]: Found specification of procedure FFmul [2018-01-21 00:32:15,278 INFO L128 BoogieDeclarations]: Found specification of procedure DUPFFdeg [2018-01-21 00:32:15,278 INFO L128 BoogieDeclarations]: Found specification of procedure DUPFFnew [2018-01-21 00:32:15,278 INFO L128 BoogieDeclarations]: Found specification of procedure DUPFFfree [2018-01-21 00:32:15,278 INFO L128 BoogieDeclarations]: Found specification of procedure DUPFFswap [2018-01-21 00:32:15,278 INFO L128 BoogieDeclarations]: Found specification of procedure DUPFFcopy [2018-01-21 00:32:15,279 INFO L128 BoogieDeclarations]: Found specification of procedure DUPFFshift_add [2018-01-21 00:32:15,279 INFO L128 BoogieDeclarations]: Found specification of procedure DUPFFexgcd [2018-01-21 00:32:15,279 INFO L128 BoogieDeclarations]: Found specification of procedure main [2018-01-21 00:32:15,279 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-01-21 00:32:15,279 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-01-21 00:32:15,763 INFO L257 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-01-21 00:32:15,764 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.01 12:32:15 BoogieIcfgContainer [2018-01-21 00:32:15,788 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-01-21 00:32:15,789 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-01-21 00:32:15,789 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-01-21 00:32:15,791 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-01-21 00:32:15,791 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.01 12:32:14" (1/3) ... [2018-01-21 00:32:15,792 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@57f252d4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.01 12:32:15, skipping insertion in model container [2018-01-21 00:32:15,792 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.01 12:32:15" (2/3) ... [2018-01-21 00:32:15,792 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@57f252d4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.01 12:32:15, skipping insertion in model container [2018-01-21 00:32:15,792 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.01 12:32:15" (3/3) ... [2018-01-21 00:32:15,794 INFO L105 eAbstractionObserver]: Analyzing ICFG 20020406-1_false-valid-memtrack.i [2018-01-21 00:32:15,800 INFO L130 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-01-21 00:32:15,807 INFO L142 ceAbstractionStarter]: Appying trace abstraction to program that has 11 error locations. [2018-01-21 00:32:15,858 INFO L322 AbstractCegarLoop]: Interprodecural is true [2018-01-21 00:32:15,858 INFO L323 AbstractCegarLoop]: Hoare is true [2018-01-21 00:32:15,859 INFO L324 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-01-21 00:32:15,859 INFO L325 AbstractCegarLoop]: Backedges is TWOTRACK [2018-01-21 00:32:15,859 INFO L326 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-01-21 00:32:15,859 INFO L327 AbstractCegarLoop]: Difference is false [2018-01-21 00:32:15,859 INFO L328 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-01-21 00:32:15,859 INFO L333 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == DUPFFnewErr0EnsuresViolation======== [2018-01-21 00:32:15,860 INFO L87 2NestedWordAutomaton]: Mode: main mode - execution starts in main procedure [2018-01-21 00:32:15,882 INFO L276 IsEmpty]: Start isEmpty. Operand 165 states. [2018-01-21 00:32:15,889 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2018-01-21 00:32:15,889 INFO L314 BasicCegarLoop]: Found error trace [2018-01-21 00:32:15,891 INFO L322 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-21 00:32:15,891 INFO L371 AbstractCegarLoop]: === Iteration 1 === [DUPFFnewErr0EnsuresViolation]=== [2018-01-21 00:32:15,895 INFO L82 PathProgramCache]: Analyzing trace with hash 1285108215, now seen corresponding path program 1 times [2018-01-21 00:32:15,897 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-21 00:32:15,937 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-21 00:32:15,938 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-21 00:32:15,938 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-21 00:32:15,938 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-21 00:32:16,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-21 00:32:16,010 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-21 00:32:16,202 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 00:32:16,203 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-21 00:32:16,204 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-01-21 00:32:16,204 INFO L252 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-01-21 00:32:16,206 INFO L409 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-01-21 00:32:16,216 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-01-21 00:32:16,216 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-01-21 00:32:16,218 INFO L87 Difference]: Start difference. First operand 165 states. Second operand 4 states. [2018-01-21 00:32:16,309 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-21 00:32:16,309 INFO L93 Difference]: Finished difference Result 329 states and 416 transitions. [2018-01-21 00:32:16,310 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-01-21 00:32:16,311 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 19 [2018-01-21 00:32:16,311 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-21 00:32:16,322 INFO L225 Difference]: With dead ends: 329 [2018-01-21 00:32:16,322 INFO L226 Difference]: Without dead ends: 103 [2018-01-21 00:32:16,330 INFO L525 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-01-21 00:32:16,346 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 103 states. [2018-01-21 00:32:16,368 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 103 to 102. [2018-01-21 00:32:16,369 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 102 states. [2018-01-21 00:32:16,372 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102 states to 102 states and 119 transitions. [2018-01-21 00:32:16,374 INFO L78 Accepts]: Start accepts. Automaton has 102 states and 119 transitions. Word has length 19 [2018-01-21 00:32:16,375 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-21 00:32:16,375 INFO L432 AbstractCegarLoop]: Abstraction has 102 states and 119 transitions. [2018-01-21 00:32:16,375 INFO L433 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-01-21 00:32:16,375 INFO L276 IsEmpty]: Start isEmpty. Operand 102 states and 119 transitions. [2018-01-21 00:32:16,377 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2018-01-21 00:32:16,377 INFO L314 BasicCegarLoop]: Found error trace [2018-01-21 00:32:16,377 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, 1, 1, 1, 1, 1] [2018-01-21 00:32:16,377 INFO L371 AbstractCegarLoop]: === Iteration 2 === [DUPFFnewErr0EnsuresViolation]=== [2018-01-21 00:32:16,378 INFO L82 PathProgramCache]: Analyzing trace with hash 824169485, now seen corresponding path program 1 times [2018-01-21 00:32:16,378 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-21 00:32:16,379 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-21 00:32:16,379 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-21 00:32:16,379 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-21 00:32:16,379 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-21 00:32:16,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-21 00:32:16,408 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-21 00:32:16,497 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 00:32:16,497 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-21 00:32:16,497 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-01-21 00:32:16,498 INFO L252 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-01-21 00:32:16,499 INFO L409 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-01-21 00:32:16,500 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-01-21 00:32:16,500 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-01-21 00:32:16,500 INFO L87 Difference]: Start difference. First operand 102 states and 119 transitions. Second operand 6 states. [2018-01-21 00:32:16,628 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-21 00:32:16,628 INFO L93 Difference]: Finished difference Result 189 states and 223 transitions. [2018-01-21 00:32:16,629 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-01-21 00:32:16,629 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 28 [2018-01-21 00:32:16,629 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-21 00:32:16,632 INFO L225 Difference]: With dead ends: 189 [2018-01-21 00:32:16,632 INFO L226 Difference]: Without dead ends: 106 [2018-01-21 00:32:16,633 INFO L525 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2018-01-21 00:32:16,634 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 106 states. [2018-01-21 00:32:16,644 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 106 to 105. [2018-01-21 00:32:16,645 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 105 states. [2018-01-21 00:32:16,646 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105 states to 105 states and 123 transitions. [2018-01-21 00:32:16,646 INFO L78 Accepts]: Start accepts. Automaton has 105 states and 123 transitions. Word has length 28 [2018-01-21 00:32:16,646 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-21 00:32:16,646 INFO L432 AbstractCegarLoop]: Abstraction has 105 states and 123 transitions. [2018-01-21 00:32:16,647 INFO L433 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-01-21 00:32:16,647 INFO L276 IsEmpty]: Start isEmpty. Operand 105 states and 123 transitions. [2018-01-21 00:32:16,647 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2018-01-21 00:32:16,647 INFO L314 BasicCegarLoop]: Found error trace [2018-01-21 00:32:16,648 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, 1, 1, 1, 1, 1, 1] [2018-01-21 00:32:16,648 INFO L371 AbstractCegarLoop]: === Iteration 3 === [DUPFFnewErr0EnsuresViolation]=== [2018-01-21 00:32:16,648 INFO L82 PathProgramCache]: Analyzing trace with hash 2128486935, now seen corresponding path program 1 times [2018-01-21 00:32:16,648 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-21 00:32:16,649 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-21 00:32:16,649 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-21 00:32:16,649 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-21 00:32:16,649 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-21 00:32:16,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-21 00:32:16,682 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-21 00:32:16,764 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-21 00:32:16,764 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-01-21 00:32:16,765 INFO L187 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-01-21 00:32:16,766 INFO L199 CegarAbsIntRunner]: Running AI on error trace of length 30 with the following transitions: [2018-01-21 00:32:16,769 INFO L201 CegarAbsIntRunner]: [0], [1], [2], [3], [6], [7], [8], [9], [11], [15], [16], [17], [19], [20], [24], [26], [27], [36], [37], [38], [39], [197], [198], [216], [217], [218], [288], [289], [290] [2018-01-21 00:32:16,821 INFO L147 AbstractInterpreter]: Using domain VPDomain [2018-01-21 00:32:16,822 INFO L101 FixpointEngine]: Starting fixpoint engine with domain VPDomain (maxUnwinding=3, maxParallelStates=2) [2018-01-21 00:32:17,043 INFO L259 AbstractInterpreter]: Some error location(s) were reachable [2018-01-21 00:32:17,044 INFO L268 AbstractInterpreter]: Visited 29 different actions 35 times. Merged at 5 different actions 5 times. Never widened. Found 2 fixpoints after 2 different actions. Largest state had 28 variables. [2018-01-21 00:32:17,056 INFO L434 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-01-21 00:32:17,057 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-01-21 00:32:17,057 INFO L187 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-01-21 00:32:17,065 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-21 00:32:17,065 INFO L280 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-01-21 00:32:17,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-21 00:32:17,106 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-01-21 00:32:17,153 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-21 00:32:17,153 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-01-21 00:32:17,431 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-21 00:32:17,457 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-01-21 00:32:17,458 INFO L187 anRefinementStrategy]: Switched to InterpolantGenerator mode CVC4_IG No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 3 with cvc4 --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with cvc4 --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 [2018-01-21 00:32:17,461 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-21 00:32:17,462 INFO L280 anRefinementStrategy]: Using traceCheck mode CVC4_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-01-21 00:32:17,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-21 00:32:17,519 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-01-21 00:32:17,527 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-21 00:32:17,527 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-01-21 00:32:17,588 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-21 00:32:17,591 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 5 imperfect interpolant sequences. [2018-01-21 00:32:17,591 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7, 7, 7] total 15 [2018-01-21 00:32:17,591 INFO L247 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-01-21 00:32:17,592 INFO L409 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-01-21 00:32:17,592 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-01-21 00:32:17,592 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=162, Unknown=0, NotChecked=0, Total=210 [2018-01-21 00:32:17,592 INFO L87 Difference]: Start difference. First operand 105 states and 123 transitions. Second operand 10 states. [2018-01-21 00:32:17,826 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-21 00:32:17,826 INFO L93 Difference]: Finished difference Result 211 states and 251 transitions. [2018-01-21 00:32:17,826 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-01-21 00:32:17,826 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 29 [2018-01-21 00:32:17,827 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-21 00:32:17,828 INFO L225 Difference]: With dead ends: 211 [2018-01-21 00:32:17,828 INFO L226 Difference]: Without dead ends: 125 [2018-01-21 00:32:17,830 INFO L525 BasicCegarLoop]: 0 DeclaredPredicates, 126 GetRequests, 104 SyntacticMatches, 5 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 65 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=80, Invalid=262, Unknown=0, NotChecked=0, Total=342 [2018-01-21 00:32:17,830 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 125 states. [2018-01-21 00:32:17,841 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 125 to 121. [2018-01-21 00:32:17,841 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 121 states. [2018-01-21 00:32:17,843 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 121 states to 121 states and 141 transitions. [2018-01-21 00:32:17,844 INFO L78 Accepts]: Start accepts. Automaton has 121 states and 141 transitions. Word has length 29 [2018-01-21 00:32:17,844 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-21 00:32:17,844 INFO L432 AbstractCegarLoop]: Abstraction has 121 states and 141 transitions. [2018-01-21 00:32:17,844 INFO L433 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-01-21 00:32:17,844 INFO L276 IsEmpty]: Start isEmpty. Operand 121 states and 141 transitions. [2018-01-21 00:32:17,845 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2018-01-21 00:32:17,845 INFO L314 BasicCegarLoop]: Found error trace [2018-01-21 00:32:17,845 INFO L322 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-21 00:32:17,845 INFO L371 AbstractCegarLoop]: === Iteration 4 === [DUPFFnewErr0EnsuresViolation]=== [2018-01-21 00:32:17,845 INFO L82 PathProgramCache]: Analyzing trace with hash -387345075, now seen corresponding path program 2 times [2018-01-21 00:32:17,846 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-21 00:32:17,846 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-21 00:32:17,847 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-21 00:32:17,847 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-21 00:32:17,847 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-21 00:32:17,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-21 00:32:17,872 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-21 00:32:17,960 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-21 00:32:17,960 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-01-21 00:32:17,960 INFO L187 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-01-21 00:32:17,961 INFO L183 CegarAbsIntRunner]: Skipping current iteration for AI because we have already analyzed this path program [2018-01-21 00:32:17,961 INFO L434 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2018-01-21 00:32:17,961 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-01-21 00:32:17,961 INFO L187 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-01-21 00:32:17,970 INFO L101 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-01-21 00:32:17,970 INFO L280 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder OUTSIDE_LOOP_FIRST1 (IT: FPandBP) [2018-01-21 00:32:17,987 INFO L201 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued a check-sat command [2018-01-21 00:32:17,995 INFO L214 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued a check-sat command [2018-01-21 00:32:17,996 INFO L239 tOrderPrioritization]: Conjunction of SSA is unsat [2018-01-21 00:32:17,998 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-01-21 00:32:18,024 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-21 00:32:18,024 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-01-21 00:32:18,154 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-21 00:32:18,175 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-01-21 00:32:18,175 INFO L187 anRefinementStrategy]: Switched to InterpolantGenerator mode CVC4_IG No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 5 with cvc4 --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with cvc4 --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 [2018-01-21 00:32:18,178 INFO L101 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-01-21 00:32:18,178 INFO L280 anRefinementStrategy]: Using traceCheck mode CVC4_IG with AssertCodeBlockOrder OUTSIDE_LOOP_FIRST1 (IT: FPandBP) [2018-01-21 00:32:18,204 INFO L201 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued a check-sat command [2018-01-21 00:32:18,312 INFO L214 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued a check-sat command [2018-01-21 00:32:18,326 INFO L239 tOrderPrioritization]: Conjunction of SSA is unsat [2018-01-21 00:32:18,331 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-01-21 00:32:18,339 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-21 00:32:18,340 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-01-21 00:32:18,435 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-21 00:32:18,437 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 5 imperfect interpolant sequences. [2018-01-21 00:32:18,437 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8, 8, 8] total 17 [2018-01-21 00:32:18,437 INFO L247 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-01-21 00:32:18,438 INFO L409 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-01-21 00:32:18,438 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-01-21 00:32:18,438 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=208, Unknown=0, NotChecked=0, Total=272 [2018-01-21 00:32:18,439 INFO L87 Difference]: Start difference. First operand 121 states and 141 transitions. Second operand 11 states. [2018-01-21 00:32:18,683 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-21 00:32:18,683 INFO L93 Difference]: Finished difference Result 230 states and 271 transitions. [2018-01-21 00:32:18,683 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-01-21 00:32:18,683 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 30 [2018-01-21 00:32:18,683 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-21 00:32:18,685 INFO L225 Difference]: With dead ends: 230 [2018-01-21 00:32:18,685 INFO L226 Difference]: Without dead ends: 128 [2018-01-21 00:32:18,685 INFO L525 BasicCegarLoop]: 0 DeclaredPredicates, 132 GetRequests, 107 SyntacticMatches, 5 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 95 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=110, Invalid=352, Unknown=0, NotChecked=0, Total=462 [2018-01-21 00:32:18,686 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 128 states. [2018-01-21 00:32:18,697 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 128 to 122. [2018-01-21 00:32:18,697 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 122 states. [2018-01-21 00:32:18,699 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 122 states to 122 states and 143 transitions. [2018-01-21 00:32:18,699 INFO L78 Accepts]: Start accepts. Automaton has 122 states and 143 transitions. Word has length 30 [2018-01-21 00:32:18,700 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-21 00:32:18,700 INFO L432 AbstractCegarLoop]: Abstraction has 122 states and 143 transitions. [2018-01-21 00:32:18,700 INFO L433 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-01-21 00:32:18,700 INFO L276 IsEmpty]: Start isEmpty. Operand 122 states and 143 transitions. [2018-01-21 00:32:18,701 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2018-01-21 00:32:18,701 INFO L314 BasicCegarLoop]: Found error trace [2018-01-21 00:32:18,701 INFO L322 BasicCegarLoop]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-21 00:32:18,701 INFO L371 AbstractCegarLoop]: === Iteration 5 === [DUPFFnewErr0EnsuresViolation]=== [2018-01-21 00:32:18,701 INFO L82 PathProgramCache]: Analyzing trace with hash -1068726057, now seen corresponding path program 3 times [2018-01-21 00:32:18,702 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-21 00:32:18,702 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-21 00:32:18,703 INFO L99 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-01-21 00:32:18,703 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-21 00:32:18,703 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-21 00:32:18,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-21 00:32:18,726 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-21 00:32:18,977 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-21 00:32:18,977 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-01-21 00:32:18,977 INFO L187 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-01-21 00:32:18,977 INFO L183 CegarAbsIntRunner]: Skipping current iteration for AI because we have already analyzed this path program [2018-01-21 00:32:18,977 INFO L434 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2018-01-21 00:32:18,977 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-01-21 00:32:18,977 INFO L187 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-01-21 00:32:18,991 INFO L101 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2018-01-21 00:32:18,992 INFO L280 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder OUTSIDE_LOOP_FIRST2 (IT: FPandBP) [2018-01-21 00:32:19,012 INFO L254 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued a check-sat command [2018-01-21 00:32:19,027 INFO L254 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued a check-sat command [2018-01-21 00:32:19,054 INFO L254 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued a check-sat command [2018-01-21 00:32:19,054 INFO L239 tOrderPrioritization]: Conjunction of SSA is unsat [2018-01-21 00:32:19,056 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-01-21 00:32:19,077 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-21 00:32:19,078 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-01-21 00:32:19,183 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-21 00:32:19,204 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-01-21 00:32:19,204 INFO L187 anRefinementStrategy]: Switched to InterpolantGenerator mode CVC4_IG No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 7 with cvc4 --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with cvc4 --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 [2018-01-21 00:32:19,207 INFO L101 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2018-01-21 00:32:19,207 INFO L280 anRefinementStrategy]: Using traceCheck mode CVC4_IG with AssertCodeBlockOrder OUTSIDE_LOOP_FIRST2 (IT: FPandBP) [2018-01-21 00:32:19,227 INFO L254 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued a check-sat command [2018-01-21 00:32:19,331 INFO L254 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued a check-sat command [2018-01-21 00:32:19,490 INFO L254 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued a check-sat command [2018-01-21 00:32:19,507 INFO L239 tOrderPrioritization]: Conjunction of SSA is unsat [2018-01-21 00:32:19,511 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-01-21 00:32:19,518 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-21 00:32:19,519 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-01-21 00:32:19,573 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-21 00:32:19,575 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 5 imperfect interpolant sequences. [2018-01-21 00:32:19,575 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9, 9, 9] total 18 [2018-01-21 00:32:19,575 INFO L247 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-01-21 00:32:19,575 INFO L409 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-01-21 00:32:19,575 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-01-21 00:32:19,576 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=233, Unknown=0, NotChecked=0, Total=306 [2018-01-21 00:32:19,576 INFO L87 Difference]: Start difference. First operand 122 states and 143 transitions. Second operand 12 states. [2018-01-21 00:32:19,680 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-21 00:32:19,680 INFO L93 Difference]: Finished difference Result 234 states and 277 transitions. [2018-01-21 00:32:19,680 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2018-01-21 00:32:19,680 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 31 [2018-01-21 00:32:19,681 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-21 00:32:19,682 INFO L225 Difference]: With dead ends: 234 [2018-01-21 00:32:19,682 INFO L226 Difference]: Without dead ends: 131 [2018-01-21 00:32:19,682 INFO L525 BasicCegarLoop]: 0 DeclaredPredicates, 138 GetRequests, 110 SyntacticMatches, 6 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 128 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=133, Invalid=419, Unknown=0, NotChecked=0, Total=552 [2018-01-21 00:32:19,683 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 131 states. [2018-01-21 00:32:19,689 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 131 to 123. [2018-01-21 00:32:19,689 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 123 states. [2018-01-21 00:32:19,690 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123 states to 123 states and 145 transitions. [2018-01-21 00:32:19,690 INFO L78 Accepts]: Start accepts. Automaton has 123 states and 145 transitions. Word has length 31 [2018-01-21 00:32:19,691 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-21 00:32:19,691 INFO L432 AbstractCegarLoop]: Abstraction has 123 states and 145 transitions. [2018-01-21 00:32:19,691 INFO L433 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-01-21 00:32:19,691 INFO L276 IsEmpty]: Start isEmpty. Operand 123 states and 145 transitions. [2018-01-21 00:32:19,691 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2018-01-21 00:32:19,691 INFO L314 BasicCegarLoop]: Found error trace [2018-01-21 00:32:19,691 INFO L322 BasicCegarLoop]: trace histogram [4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-21 00:32:19,692 INFO L371 AbstractCegarLoop]: === Iteration 6 === [DUPFFnewErr0EnsuresViolation]=== [2018-01-21 00:32:19,692 INFO L82 PathProgramCache]: Analyzing trace with hash -716700019, now seen corresponding path program 4 times [2018-01-21 00:32:19,692 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-21 00:32:19,692 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-21 00:32:19,692 INFO L99 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-01-21 00:32:19,693 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-21 00:32:19,693 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-21 00:32:19,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-21 00:32:19,711 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-21 00:32:19,793 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-21 00:32:19,793 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-01-21 00:32:19,793 INFO L187 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-01-21 00:32:19,793 INFO L183 CegarAbsIntRunner]: Skipping current iteration for AI because we have already analyzed this path program [2018-01-21 00:32:19,793 INFO L434 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2018-01-21 00:32:19,793 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-01-21 00:32:19,793 INFO L187 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-01-21 00:32:19,798 INFO L101 rtionOrderModulation]: Keeping assertion order TERMS_WITH_SMALL_CONSTANTS_FIRST [2018-01-21 00:32:19,798 INFO L280 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder TERMS_WITH_SMALL_CONSTANTS_FIRST (IT: FPandBP) [2018-01-21 00:32:19,824 INFO L239 tOrderPrioritization]: Conjunction of SSA is unsat [2018-01-21 00:32:19,826 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-01-21 00:32:19,848 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-21 00:32:19,848 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-01-21 00:32:19,996 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-21 00:32:20,017 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-01-21 00:32:20,017 INFO L187 anRefinementStrategy]: Switched to InterpolantGenerator mode CVC4_IG No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 9 with cvc4 --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with cvc4 --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 [2018-01-21 00:32:20,020 INFO L101 rtionOrderModulation]: Keeping assertion order TERMS_WITH_SMALL_CONSTANTS_FIRST [2018-01-21 00:32:20,020 INFO L280 anRefinementStrategy]: Using traceCheck mode CVC4_IG with AssertCodeBlockOrder TERMS_WITH_SMALL_CONSTANTS_FIRST (IT: FPandBP) [2018-01-21 00:32:20,107 INFO L239 tOrderPrioritization]: Conjunction of SSA is unsat [2018-01-21 00:32:20,112 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-01-21 00:32:20,118 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-21 00:32:20,119 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-01-21 00:32:20,215 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-21 00:32:20,217 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 5 imperfect interpolant sequences. [2018-01-21 00:32:20,217 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10, 10, 10, 10] total 19 [2018-01-21 00:32:20,217 INFO L247 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-01-21 00:32:20,218 INFO L409 AbstractCegarLoop]: Interpolant automaton has 13 states [2018-01-21 00:32:20,218 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2018-01-21 00:32:20,218 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=102, Invalid=240, Unknown=0, NotChecked=0, Total=342 [2018-01-21 00:32:20,218 INFO L87 Difference]: Start difference. First operand 123 states and 145 transitions. Second operand 13 states. [2018-01-21 00:32:20,343 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-21 00:32:20,343 INFO L93 Difference]: Finished difference Result 238 states and 283 transitions. [2018-01-21 00:32:20,343 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2018-01-21 00:32:20,344 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 32 [2018-01-21 00:32:20,344 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-21 00:32:20,345 INFO L225 Difference]: With dead ends: 238 [2018-01-21 00:32:20,345 INFO L226 Difference]: Without dead ends: 134 [2018-01-21 00:32:20,346 INFO L525 BasicCegarLoop]: 0 DeclaredPredicates, 144 GetRequests, 112 SyntacticMatches, 8 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 151 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=184, Invalid=466, Unknown=0, NotChecked=0, Total=650 [2018-01-21 00:32:20,346 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 134 states. [2018-01-21 00:32:20,355 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 134 to 124. [2018-01-21 00:32:20,355 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 124 states. [2018-01-21 00:32:20,357 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 124 states to 124 states and 147 transitions. [2018-01-21 00:32:20,357 INFO L78 Accepts]: Start accepts. Automaton has 124 states and 147 transitions. Word has length 32 [2018-01-21 00:32:20,358 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-21 00:32:20,358 INFO L432 AbstractCegarLoop]: Abstraction has 124 states and 147 transitions. [2018-01-21 00:32:20,358 INFO L433 AbstractCegarLoop]: Interpolant automaton has 13 states. [2018-01-21 00:32:20,358 INFO L276 IsEmpty]: Start isEmpty. Operand 124 states and 147 transitions. [2018-01-21 00:32:20,359 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2018-01-21 00:32:20,359 INFO L314 BasicCegarLoop]: Found error trace [2018-01-21 00:32:20,359 INFO L322 BasicCegarLoop]: trace histogram [5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-21 00:32:20,359 INFO L371 AbstractCegarLoop]: === Iteration 7 === [DUPFFnewErr0EnsuresViolation]=== [2018-01-21 00:32:20,359 INFO L82 PathProgramCache]: Analyzing trace with hash 1606172567, now seen corresponding path program 5 times [2018-01-21 00:32:20,360 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-21 00:32:20,360 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-21 00:32:20,360 INFO L99 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-01-21 00:32:20,360 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-21 00:32:20,360 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-21 00:32:20,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-21 00:32:20,380 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-21 00:32:20,488 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-21 00:32:20,488 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-01-21 00:32:20,488 INFO L187 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-01-21 00:32:20,488 INFO L183 CegarAbsIntRunner]: Skipping current iteration for AI because we have already analyzed this path program [2018-01-21 00:32:20,488 INFO L434 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2018-01-21 00:32:20,488 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-01-21 00:32:20,488 INFO L187 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-01-21 00:32:20,493 INFO L101 rtionOrderModulation]: Keeping assertion order INSIDE_LOOP_FIRST1 [2018-01-21 00:32:20,493 INFO L280 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder INSIDE_LOOP_FIRST1 (IT: FPandBP) [2018-01-21 00:32:20,501 INFO L278 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued a check-sat command [2018-01-21 00:32:20,503 INFO L278 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued a check-sat command [2018-01-21 00:32:20,507 INFO L278 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued a check-sat command [2018-01-21 00:32:20,524 INFO L278 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued a check-sat command [2018-01-21 00:32:20,526 INFO L239 tOrderPrioritization]: Conjunction of SSA is unsat [2018-01-21 00:32:20,529 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-01-21 00:32:20,551 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-21 00:32:20,552 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-01-21 00:32:20,731 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-21 00:32:20,752 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-01-21 00:32:20,752 INFO L187 anRefinementStrategy]: Switched to InterpolantGenerator mode CVC4_IG No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 11 with cvc4 --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with cvc4 --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 [2018-01-21 00:32:20,758 INFO L101 rtionOrderModulation]: Keeping assertion order INSIDE_LOOP_FIRST1 [2018-01-21 00:32:20,758 INFO L280 anRefinementStrategy]: Using traceCheck mode CVC4_IG with AssertCodeBlockOrder INSIDE_LOOP_FIRST1 (IT: FPandBP) [2018-01-21 00:32:20,767 INFO L278 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued a check-sat command [2018-01-21 00:32:20,773 INFO L278 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued a check-sat command [2018-01-21 00:32:20,801 INFO L278 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued a check-sat command [2018-01-21 00:32:20,840 INFO L278 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued a check-sat command [2018-01-21 00:32:20,864 INFO L239 tOrderPrioritization]: Conjunction of SSA is unsat [2018-01-21 00:32:20,870 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-01-21 00:32:20,876 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-21 00:32:20,876 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-01-21 00:32:20,961 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-21 00:32:20,963 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 5 imperfect interpolant sequences. [2018-01-21 00:32:20,963 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11, 11, 11] total 21 [2018-01-21 00:32:20,964 INFO L247 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-01-21 00:32:20,964 INFO L409 AbstractCegarLoop]: Interpolant automaton has 14 states [2018-01-21 00:32:20,965 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2018-01-21 00:32:20,965 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=126, Invalid=294, Unknown=0, NotChecked=0, Total=420 [2018-01-21 00:32:20,965 INFO L87 Difference]: Start difference. First operand 124 states and 147 transitions. Second operand 14 states. [2018-01-21 00:32:21,158 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-21 00:32:21,159 INFO L93 Difference]: Finished difference Result 242 states and 289 transitions. [2018-01-21 00:32:21,159 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2018-01-21 00:32:21,159 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 33 [2018-01-21 00:32:21,159 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-21 00:32:21,161 INFO L225 Difference]: With dead ends: 242 [2018-01-21 00:32:21,161 INFO L226 Difference]: Without dead ends: 137 [2018-01-21 00:32:21,162 INFO L525 BasicCegarLoop]: 0 DeclaredPredicates, 150 GetRequests, 115 SyntacticMatches, 8 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 192 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=234, Invalid=578, Unknown=0, NotChecked=0, Total=812 [2018-01-21 00:32:21,162 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 137 states. [2018-01-21 00:32:21,169 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 137 to 125. [2018-01-21 00:32:21,169 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 125 states. [2018-01-21 00:32:21,171 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125 states to 125 states and 149 transitions. [2018-01-21 00:32:21,171 INFO L78 Accepts]: Start accepts. Automaton has 125 states and 149 transitions. Word has length 33 [2018-01-21 00:32:21,171 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-21 00:32:21,172 INFO L432 AbstractCegarLoop]: Abstraction has 125 states and 149 transitions. [2018-01-21 00:32:21,172 INFO L433 AbstractCegarLoop]: Interpolant automaton has 14 states. [2018-01-21 00:32:21,172 INFO L276 IsEmpty]: Start isEmpty. Operand 125 states and 149 transitions. [2018-01-21 00:32:21,173 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2018-01-21 00:32:21,173 INFO L314 BasicCegarLoop]: Found error trace [2018-01-21 00:32:21,173 INFO L322 BasicCegarLoop]: trace histogram [6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-21 00:32:21,173 INFO L371 AbstractCegarLoop]: === Iteration 8 === [DUPFFnewErr0EnsuresViolation]=== [2018-01-21 00:32:21,173 INFO L82 PathProgramCache]: Analyzing trace with hash 600778701, now seen corresponding path program 6 times [2018-01-21 00:32:21,173 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-21 00:32:21,174 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-21 00:32:21,174 INFO L99 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-01-21 00:32:21,174 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-21 00:32:21,174 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-21 00:32:21,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-21 00:32:21,202 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-21 00:32:21,302 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-21 00:32:21,302 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-01-21 00:32:21,302 INFO L187 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-01-21 00:32:21,302 INFO L183 CegarAbsIntRunner]: Skipping current iteration for AI because we have already analyzed this path program [2018-01-21 00:32:21,302 INFO L434 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2018-01-21 00:32:21,303 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-01-21 00:32:21,303 INFO L187 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 12 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-01-21 00:32:21,310 INFO L101 rtionOrderModulation]: Keeping assertion order MIX_INSIDE_OUTSIDE [2018-01-21 00:32:21,310 INFO L280 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder MIX_INSIDE_OUTSIDE (IT: FPandBP) [2018-01-21 00:32:21,327 INFO L310 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued a check-sat command [2018-01-21 00:32:21,335 INFO L310 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued a check-sat command [2018-01-21 00:32:21,351 INFO L310 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued a check-sat command [2018-01-21 00:32:21,463 INFO L310 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued a check-sat command [2018-01-21 00:32:21,464 INFO L239 tOrderPrioritization]: Conjunction of SSA is unsat [2018-01-21 00:32:21,466 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-01-21 00:32:21,506 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-21 00:32:21,506 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-01-21 00:32:21,766 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-21 00:32:21,802 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-01-21 00:32:21,802 INFO L187 anRefinementStrategy]: Switched to InterpolantGenerator mode CVC4_IG No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 13 with cvc4 --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with cvc4 --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 [2018-01-21 00:32:21,805 INFO L101 rtionOrderModulation]: Keeping assertion order MIX_INSIDE_OUTSIDE [2018-01-21 00:32:21,806 INFO L280 anRefinementStrategy]: Using traceCheck mode CVC4_IG with AssertCodeBlockOrder MIX_INSIDE_OUTSIDE (IT: FPandBP) [2018-01-21 00:32:21,828 INFO L310 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued a check-sat command [2018-01-21 00:32:21,933 INFO L310 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued a check-sat command [2018-01-21 00:32:22,047 INFO L310 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued a check-sat command [2018-01-21 00:32:22,278 INFO L310 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued a check-sat command [2018-01-21 00:32:22,299 INFO L239 tOrderPrioritization]: Conjunction of SSA is unsat [2018-01-21 00:32:22,304 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-01-21 00:32:22,311 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-21 00:32:22,311 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-01-21 00:32:22,467 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-21 00:32:22,469 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 5 imperfect interpolant sequences. [2018-01-21 00:32:22,469 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12, 12, 12, 12] total 23 [2018-01-21 00:32:22,469 INFO L247 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-01-21 00:32:22,469 INFO L409 AbstractCegarLoop]: Interpolant automaton has 15 states [2018-01-21 00:32:22,470 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2018-01-21 00:32:22,470 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=150, Invalid=356, Unknown=0, NotChecked=0, Total=506 [2018-01-21 00:32:22,470 INFO L87 Difference]: Start difference. First operand 125 states and 149 transitions. Second operand 15 states. [2018-01-21 00:32:22,642 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-21 00:32:22,642 INFO L93 Difference]: Finished difference Result 246 states and 295 transitions. [2018-01-21 00:32:22,642 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2018-01-21 00:32:22,642 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 34 [2018-01-21 00:32:22,642 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-21 00:32:22,643 INFO L225 Difference]: With dead ends: 246 [2018-01-21 00:32:22,643 INFO L226 Difference]: Without dead ends: 140 [2018-01-21 00:32:22,644 INFO L525 BasicCegarLoop]: 0 DeclaredPredicates, 156 GetRequests, 118 SyntacticMatches, 8 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 238 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2018-01-21 00:32:22,644 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 140 states. [2018-01-21 00:32:22,649 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 140 to 126. [2018-01-21 00:32:22,649 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 126 states. [2018-01-21 00:32:22,650 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 126 states to 126 states and 151 transitions. [2018-01-21 00:32:22,650 INFO L78 Accepts]: Start accepts. Automaton has 126 states and 151 transitions. Word has length 34 [2018-01-21 00:32:22,651 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-21 00:32:22,651 INFO L432 AbstractCegarLoop]: Abstraction has 126 states and 151 transitions. [2018-01-21 00:32:22,651 INFO L433 AbstractCegarLoop]: Interpolant automaton has 15 states. [2018-01-21 00:32:22,651 INFO L276 IsEmpty]: Start isEmpty. Operand 126 states and 151 transitions. [2018-01-21 00:32:22,651 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2018-01-21 00:32:22,652 INFO L314 BasicCegarLoop]: Found error trace [2018-01-21 00:32:22,652 INFO L322 BasicCegarLoop]: trace histogram [7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-21 00:32:22,652 INFO L371 AbstractCegarLoop]: === Iteration 9 === [DUPFFnewErr0EnsuresViolation]=== [2018-01-21 00:32:22,652 INFO L82 PathProgramCache]: Analyzing trace with hash -501660073, now seen corresponding path program 7 times [2018-01-21 00:32:22,652 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-21 00:32:22,653 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-21 00:32:22,653 INFO L99 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-01-21 00:32:22,653 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-21 00:32:22,653 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-21 00:32:22,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-21 00:32:22,670 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-21 00:32:22,805 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-21 00:32:22,805 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-01-21 00:32:22,805 INFO L187 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-01-21 00:32:22,805 INFO L183 CegarAbsIntRunner]: Skipping current iteration for AI because we have already analyzed this path program [2018-01-21 00:32:22,805 INFO L434 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2018-01-21 00:32:22,805 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-01-21 00:32:22,806 INFO L187 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 14 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 14 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-01-21 00:32:22,817 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-21 00:32:22,817 INFO L280 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-01-21 00:32:22,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-21 00:32:22,848 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-01-21 00:32:22,872 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-21 00:32:22,872 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-01-21 00:32:23,028 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-21 00:32:23,047 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-01-21 00:32:23,047 INFO L187 anRefinementStrategy]: Switched to InterpolantGenerator mode CVC4_IG No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 15 with cvc4 --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 15 with cvc4 --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 [2018-01-21 00:32:23,051 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-21 00:32:23,051 INFO L280 anRefinementStrategy]: Using traceCheck mode CVC4_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-01-21 00:32:23,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-21 00:32:23,094 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-01-21 00:32:23,101 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-21 00:32:23,101 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-01-21 00:32:23,176 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-21 00:32:23,177 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 5 imperfect interpolant sequences. [2018-01-21 00:32:23,177 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13, 13, 13, 13] total 24 [2018-01-21 00:32:23,177 INFO L247 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-01-21 00:32:23,177 INFO L409 AbstractCegarLoop]: Interpolant automaton has 16 states [2018-01-21 00:32:23,178 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2018-01-21 00:32:23,178 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=163, Invalid=389, Unknown=0, NotChecked=0, Total=552 [2018-01-21 00:32:23,178 INFO L87 Difference]: Start difference. First operand 126 states and 151 transitions. Second operand 16 states. [2018-01-21 00:32:23,374 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-21 00:32:23,374 INFO L93 Difference]: Finished difference Result 250 states and 301 transitions. [2018-01-21 00:32:23,374 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2018-01-21 00:32:23,374 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 35 [2018-01-21 00:32:23,374 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-21 00:32:23,376 INFO L225 Difference]: With dead ends: 250 [2018-01-21 00:32:23,376 INFO L226 Difference]: Without dead ends: 143 [2018-01-21 00:32:23,377 INFO L525 BasicCegarLoop]: 0 DeclaredPredicates, 162 GetRequests, 121 SyntacticMatches, 9 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 285 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=327, Invalid=795, Unknown=0, NotChecked=0, Total=1122 [2018-01-21 00:32:23,377 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 143 states. [2018-01-21 00:32:23,383 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 143 to 127. [2018-01-21 00:32:23,383 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 127 states. [2018-01-21 00:32:23,384 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 127 states to 127 states and 153 transitions. [2018-01-21 00:32:23,384 INFO L78 Accepts]: Start accepts. Automaton has 127 states and 153 transitions. Word has length 35 [2018-01-21 00:32:23,384 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-21 00:32:23,384 INFO L432 AbstractCegarLoop]: Abstraction has 127 states and 153 transitions. [2018-01-21 00:32:23,385 INFO L433 AbstractCegarLoop]: Interpolant automaton has 16 states. [2018-01-21 00:32:23,385 INFO L276 IsEmpty]: Start isEmpty. Operand 127 states and 153 transitions. [2018-01-21 00:32:23,385 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2018-01-21 00:32:23,385 INFO L314 BasicCegarLoop]: Found error trace [2018-01-21 00:32:23,386 INFO L322 BasicCegarLoop]: trace histogram [8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-21 00:32:23,386 INFO L371 AbstractCegarLoop]: === Iteration 10 === [DUPFFnewErr0EnsuresViolation]=== [2018-01-21 00:32:23,386 INFO L82 PathProgramCache]: Analyzing trace with hash -317523699, now seen corresponding path program 8 times [2018-01-21 00:32:23,386 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-21 00:32:23,387 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-21 00:32:23,387 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-21 00:32:23,387 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-21 00:32:23,387 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-21 00:32:23,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-01-21 00:32:23,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-01-21 00:32:23,451 INFO L381 BasicCegarLoop]: Counterexample might be feasible [2018-01-21 00:32:23,462 WARN L343 cessorBacktranslator]: Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) [2018-01-21 00:32:23,467 WARN L343 cessorBacktranslator]: Generated EnsuresSpecification free ensures #res.base == #ptr.base && #res.offset == #ptr.offset; is not ensure(true) [2018-01-21 00:32:23,468 WARN L343 cessorBacktranslator]: Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) [2018-01-21 00:32:23,484 INFO L322 AbstractCegarLoop]: Interprodecural is true [2018-01-21 00:32:23,484 INFO L323 AbstractCegarLoop]: Hoare is true [2018-01-21 00:32:23,484 INFO L324 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-01-21 00:32:23,484 INFO L325 AbstractCegarLoop]: Backedges is TWOTRACK [2018-01-21 00:32:23,485 INFO L326 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-01-21 00:32:23,485 INFO L327 AbstractCegarLoop]: Difference is false [2018-01-21 00:32:23,485 INFO L328 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-01-21 00:32:23,485 INFO L333 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == DUPFFexgcdErr0EnsuresViolation======== [2018-01-21 00:32:23,485 INFO L87 2NestedWordAutomaton]: Mode: main mode - execution starts in main procedure [2018-01-21 00:32:23,487 INFO L276 IsEmpty]: Start isEmpty. Operand 165 states. [2018-01-21 00:32:23,489 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2018-01-21 00:32:23,489 INFO L314 BasicCegarLoop]: Found error trace [2018-01-21 00:32:23,490 INFO L322 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-21 00:32:23,490 INFO L371 AbstractCegarLoop]: === Iteration 1 === [DUPFFexgcdErr0EnsuresViolation]=== [2018-01-21 00:32:23,490 INFO L82 PathProgramCache]: Analyzing trace with hash -2095005952, now seen corresponding path program 1 times [2018-01-21 00:32:23,490 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-21 00:32:23,491 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-21 00:32:23,491 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-21 00:32:23,491 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-21 00:32:23,491 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-21 00:32:23,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-21 00:32:23,500 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-21 00:32:23,641 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2018-01-21 00:32:23,641 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-01-21 00:32:23,641 INFO L187 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-01-21 00:32:23,641 INFO L199 CegarAbsIntRunner]: Running AI on error trace of length 72 with the following transitions: [2018-01-21 00:32:23,642 INFO L201 CegarAbsIntRunner]: [0], [1], [2], [3], [13], [15], [16], [17], [18], [28], [29], [30], [31], [36], [37], [38], [39], [41], [42], [43], [44], [45], [47], [48], [49], [50], [51], [60], [62], [64], [70], [72], [75], [83], [87], [88], [91], [196], [197], [198], [218], [219], [220], [221], [222], [224], [225], [226], [227], [230], [231], [288], [289], [290] [2018-01-21 00:32:23,644 INFO L147 AbstractInterpreter]: Using domain VPDomain [2018-01-21 00:32:23,644 INFO L101 FixpointEngine]: Starting fixpoint engine with domain VPDomain (maxUnwinding=3, maxParallelStates=2) [2018-01-21 00:32:23,702 INFO L262 AbstractInterpreter]: Error location(s) were unreachable [2018-01-21 00:32:23,702 INFO L268 AbstractInterpreter]: Visited 19 different actions 19 times. Never merged. Never widened. Never found a fixpoint. Largest state had 32 variables. [2018-01-21 00:32:23,717 INFO L395 sIntCurrentIteration]: Generating AbsInt predicates [2018-01-21 00:32:23,823 INFO L232 lantSequenceWeakener]: Weakened 18 states. On average, predicates are now at 61.93% of their original sizes. [2018-01-21 00:32:23,823 INFO L408 sIntCurrentIteration]: Unifying AI predicates [2018-01-21 00:32:24,058 INFO L419 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-01-21 00:32:24,059 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-01-21 00:32:24,059 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [14] imperfect sequences [5] total 18 [2018-01-21 00:32:24,059 INFO L252 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-01-21 00:32:24,060 INFO L409 AbstractCegarLoop]: Interpolant automaton has 15 states [2018-01-21 00:32:24,060 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2018-01-21 00:32:24,060 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=178, Unknown=0, NotChecked=0, Total=210 [2018-01-21 00:32:24,061 INFO L87 Difference]: Start difference. First operand 165 states. Second operand 15 states. [2018-01-21 00:32:25,562 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-21 00:32:25,563 INFO L93 Difference]: Finished difference Result 184 states and 225 transitions. [2018-01-21 00:32:25,563 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2018-01-21 00:32:25,563 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 71 [2018-01-21 00:32:25,563 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-21 00:32:25,563 INFO L225 Difference]: With dead ends: 184 [2018-01-21 00:32:25,564 INFO L226 Difference]: Without dead ends: 0 [2018-01-21 00:32:25,565 INFO L525 BasicCegarLoop]: 2 DeclaredPredicates, 80 GetRequests, 56 SyntacticMatches, 1 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 85 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=104, Invalid=496, Unknown=0, NotChecked=0, Total=600 [2018-01-21 00:32:25,565 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-01-21 00:32:25,565 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-01-21 00:32:25,565 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-01-21 00:32:25,565 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-01-21 00:32:25,565 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 71 [2018-01-21 00:32:25,566 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-21 00:32:25,566 INFO L432 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-01-21 00:32:25,566 INFO L433 AbstractCegarLoop]: Interpolant automaton has 15 states. [2018-01-21 00:32:25,566 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-01-21 00:32:25,566 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-01-21 00:32:25,569 INFO L322 AbstractCegarLoop]: Interprodecural is true [2018-01-21 00:32:25,569 INFO L323 AbstractCegarLoop]: Hoare is true [2018-01-21 00:32:25,569 INFO L324 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-01-21 00:32:25,569 INFO L325 AbstractCegarLoop]: Backedges is TWOTRACK [2018-01-21 00:32:25,569 INFO L326 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-01-21 00:32:25,569 INFO L327 AbstractCegarLoop]: Difference is false [2018-01-21 00:32:25,569 INFO L328 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-01-21 00:32:25,569 INFO L333 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == ULTIMATE.initErr0EnsuresViolation======== [2018-01-21 00:32:25,570 INFO L87 2NestedWordAutomaton]: Mode: main mode - execution starts in main procedure [2018-01-21 00:32:25,571 INFO L276 IsEmpty]: Start isEmpty. Operand 165 states. [2018-01-21 00:32:25,571 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2018-01-21 00:32:25,572 INFO L314 BasicCegarLoop]: Found error trace [2018-01-21 00:32:25,572 INFO L322 BasicCegarLoop]: trace histogram [1, 1, 1] [2018-01-21 00:32:25,572 INFO L371 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.initErr0EnsuresViolation]=== [2018-01-21 00:32:25,572 INFO L82 PathProgramCache]: Analyzing trace with hash 312865, now seen corresponding path program 1 times [2018-01-21 00:32:25,572 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-21 00:32:25,573 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-21 00:32:25,573 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-21 00:32:25,573 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-21 00:32:25,573 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-21 00:32:25,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-01-21 00:32:25,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-01-21 00:32:25,578 INFO L381 BasicCegarLoop]: Counterexample might be feasible [2018-01-21 00:32:25,579 WARN L343 cessorBacktranslator]: Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) [2018-01-21 00:32:25,580 INFO L322 AbstractCegarLoop]: Interprodecural is true [2018-01-21 00:32:25,580 INFO L323 AbstractCegarLoop]: Hoare is true [2018-01-21 00:32:25,580 INFO L324 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-01-21 00:32:25,580 INFO L325 AbstractCegarLoop]: Backedges is TWOTRACK [2018-01-21 00:32:25,580 INFO L326 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-01-21 00:32:25,581 INFO L327 AbstractCegarLoop]: Difference is false [2018-01-21 00:32:25,581 INFO L328 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-01-21 00:32:25,581 INFO L333 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == DUPFFcopyErr0EnsuresViolation======== [2018-01-21 00:32:25,581 INFO L87 2NestedWordAutomaton]: Mode: main mode - execution starts in main procedure [2018-01-21 00:32:25,582 INFO L276 IsEmpty]: Start isEmpty. Operand 165 states. [2018-01-21 00:32:25,584 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2018-01-21 00:32:25,584 INFO L314 BasicCegarLoop]: Found error trace [2018-01-21 00:32:25,585 INFO L322 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-21 00:32:25,585 INFO L371 AbstractCegarLoop]: === Iteration 1 === [DUPFFcopyErr0EnsuresViolation]=== [2018-01-21 00:32:25,585 INFO L82 PathProgramCache]: Analyzing trace with hash 1190895175, now seen corresponding path program 1 times [2018-01-21 00:32:25,585 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-21 00:32:25,586 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-21 00:32:25,586 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-21 00:32:25,586 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-21 00:32:25,586 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-21 00:32:25,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-21 00:32:25,597 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-21 00:32:25,668 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 51 trivial. 0 not checked. [2018-01-21 00:32:25,668 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-01-21 00:32:25,668 INFO L187 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-01-21 00:32:25,669 INFO L199 CegarAbsIntRunner]: Running AI on error trace of length 90 with the following transitions: [2018-01-21 00:32:25,669 INFO L201 CegarAbsIntRunner]: [0], [1], [2], [3], [13], [15], [16], [17], [18], [28], [29], [30], [31], [36], [37], [38], [39], [41], [42], [43], [44], [45], [47], [48], [49], [50], [51], [60], [62], [64], [70], [72], [75], [83], [87], [88], [92], [94], [97], [102], [105], [197], [198], [200], [202], [218], [219], [220], [221], [222], [224], [225], [226], [227], [230], [231], [234], [235], [236], [237], [238], [288], [289], [290] [2018-01-21 00:32:25,672 INFO L147 AbstractInterpreter]: Using domain VPDomain [2018-01-21 00:32:25,672 INFO L101 FixpointEngine]: Starting fixpoint engine with domain VPDomain (maxUnwinding=3, maxParallelStates=2) [2018-01-21 00:32:25,709 INFO L262 AbstractInterpreter]: Error location(s) were unreachable [2018-01-21 00:32:25,710 INFO L268 AbstractInterpreter]: Visited 19 different actions 19 times. Never merged. Never widened. Never found a fixpoint. Largest state had 32 variables. [2018-01-21 00:32:25,712 INFO L395 sIntCurrentIteration]: Generating AbsInt predicates [2018-01-21 00:32:25,764 INFO L232 lantSequenceWeakener]: Weakened 18 states. On average, predicates are now at 61.93% of their original sizes. [2018-01-21 00:32:25,764 INFO L408 sIntCurrentIteration]: Unifying AI predicates [2018-01-21 00:32:25,941 INFO L419 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-01-21 00:32:25,941 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-01-21 00:32:25,942 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [14] imperfect sequences [5] total 18 [2018-01-21 00:32:25,942 INFO L252 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-01-21 00:32:25,942 INFO L409 AbstractCegarLoop]: Interpolant automaton has 15 states [2018-01-21 00:32:25,942 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2018-01-21 00:32:25,942 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=178, Unknown=0, NotChecked=0, Total=210 [2018-01-21 00:32:25,943 INFO L87 Difference]: Start difference. First operand 165 states. Second operand 15 states. [2018-01-21 00:32:27,103 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-21 00:32:27,103 INFO L93 Difference]: Finished difference Result 184 states and 225 transitions. [2018-01-21 00:32:27,104 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2018-01-21 00:32:27,104 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 89 [2018-01-21 00:32:27,104 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-21 00:32:27,104 INFO L225 Difference]: With dead ends: 184 [2018-01-21 00:32:27,104 INFO L226 Difference]: Without dead ends: 0 [2018-01-21 00:32:27,105 INFO L525 BasicCegarLoop]: 2 DeclaredPredicates, 98 GetRequests, 74 SyntacticMatches, 1 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 85 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=104, Invalid=496, Unknown=0, NotChecked=0, Total=600 [2018-01-21 00:32:27,105 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-01-21 00:32:27,106 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-01-21 00:32:27,106 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-01-21 00:32:27,106 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-01-21 00:32:27,106 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 89 [2018-01-21 00:32:27,106 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-21 00:32:27,106 INFO L432 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-01-21 00:32:27,106 INFO L433 AbstractCegarLoop]: Interpolant automaton has 15 states. [2018-01-21 00:32:27,107 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-01-21 00:32:27,107 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-01-21 00:32:27,108 INFO L322 AbstractCegarLoop]: Interprodecural is true [2018-01-21 00:32:27,108 INFO L323 AbstractCegarLoop]: Hoare is true [2018-01-21 00:32:27,108 INFO L324 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-01-21 00:32:27,108 INFO L325 AbstractCegarLoop]: Backedges is TWOTRACK [2018-01-21 00:32:27,108 INFO L326 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-01-21 00:32:27,108 INFO L327 AbstractCegarLoop]: Difference is false [2018-01-21 00:32:27,108 INFO L328 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-01-21 00:32:27,109 INFO L333 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == DUPFFswapErr0EnsuresViolation======== [2018-01-21 00:32:27,109 INFO L87 2NestedWordAutomaton]: Mode: main mode - execution starts in main procedure [2018-01-21 00:32:27,110 INFO L276 IsEmpty]: Start isEmpty. Operand 165 states. [2018-01-21 00:32:27,113 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2018-01-21 00:32:27,114 INFO L314 BasicCegarLoop]: Found error trace [2018-01-21 00:32:27,114 INFO L322 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-21 00:32:27,114 INFO L371 AbstractCegarLoop]: === Iteration 1 === [DUPFFswapErr0EnsuresViolation]=== [2018-01-21 00:32:27,114 INFO L82 PathProgramCache]: Analyzing trace with hash -331476965, now seen corresponding path program 1 times [2018-01-21 00:32:27,114 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-21 00:32:27,115 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-21 00:32:27,115 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-21 00:32:27,115 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-21 00:32:27,115 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-21 00:32:27,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-21 00:32:27,129 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-21 00:32:27,261 INFO L134 CoverageAnalysis]: Checked inductivity of 228 backedges. 0 proven. 45 refuted. 0 times theorem prover too weak. 183 trivial. 0 not checked. [2018-01-21 00:32:27,261 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-01-21 00:32:27,262 INFO L187 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-01-21 00:32:27,262 INFO L199 CegarAbsIntRunner]: Running AI on error trace of length 165 with the following transitions: [2018-01-21 00:32:27,262 INFO L201 CegarAbsIntRunner]: [0], [1], [2], [3], [13], [15], [16], [17], [18], [28], [29], [30], [31], [36], [37], [38], [39], [41], [42], [43], [44], [45], [47], [48], [49], [50], [51], [60], [62], [64], [70], [72], [75], [83], [87], [88], [92], [94], [97], [102], [105], [110], [112], [114], [115], [116], [117], [118], [120], [122], [124], [125], [126], [127], [128], [176], [179], [182], [197], [198], [200], [201], [203], [205], [218], [219], [220], [221], [222], [224], [225], [226], [227], [230], [231], [234], [235], [236], [237], [238], [239], [240], [241], [242], [243], [244], [245], [246], [247], [248], [249], [274], [275], [276], [288], [289], [290] [2018-01-21 00:32:27,265 INFO L147 AbstractInterpreter]: Using domain VPDomain [2018-01-21 00:32:27,265 INFO L101 FixpointEngine]: Starting fixpoint engine with domain VPDomain (maxUnwinding=3, maxParallelStates=2) [2018-01-21 00:32:27,302 INFO L262 AbstractInterpreter]: Error location(s) were unreachable [2018-01-21 00:32:27,303 INFO L268 AbstractInterpreter]: Visited 19 different actions 19 times. Never merged. Never widened. Never found a fixpoint. Largest state had 32 variables. [2018-01-21 00:32:27,304 INFO L395 sIntCurrentIteration]: Generating AbsInt predicates [2018-01-21 00:32:27,377 INFO L232 lantSequenceWeakener]: Weakened 18 states. On average, predicates are now at 61.93% of their original sizes. [2018-01-21 00:32:27,378 INFO L408 sIntCurrentIteration]: Unifying AI predicates [2018-01-21 00:32:27,570 INFO L419 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-01-21 00:32:27,571 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-01-21 00:32:27,571 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [14] imperfect sequences [5] total 18 [2018-01-21 00:32:27,571 INFO L252 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-01-21 00:32:27,572 INFO L409 AbstractCegarLoop]: Interpolant automaton has 15 states [2018-01-21 00:32:27,572 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2018-01-21 00:32:27,572 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=178, Unknown=0, NotChecked=0, Total=210 [2018-01-21 00:32:27,573 INFO L87 Difference]: Start difference. First operand 165 states. Second operand 15 states. [2018-01-21 00:32:28,795 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-21 00:32:28,796 INFO L93 Difference]: Finished difference Result 184 states and 225 transitions. [2018-01-21 00:32:28,796 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2018-01-21 00:32:28,796 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 164 [2018-01-21 00:32:28,796 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-21 00:32:28,796 INFO L225 Difference]: With dead ends: 184 [2018-01-21 00:32:28,796 INFO L226 Difference]: Without dead ends: 0 [2018-01-21 00:32:28,797 INFO L525 BasicCegarLoop]: 2 DeclaredPredicates, 173 GetRequests, 149 SyntacticMatches, 1 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 85 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=104, Invalid=496, Unknown=0, NotChecked=0, Total=600 [2018-01-21 00:32:28,797 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-01-21 00:32:28,797 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-01-21 00:32:28,797 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-01-21 00:32:28,797 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-01-21 00:32:28,798 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 164 [2018-01-21 00:32:28,798 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-21 00:32:28,798 INFO L432 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-01-21 00:32:28,798 INFO L433 AbstractCegarLoop]: Interpolant automaton has 15 states. [2018-01-21 00:32:28,798 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-01-21 00:32:28,798 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-01-21 00:32:28,799 INFO L322 AbstractCegarLoop]: Interprodecural is true [2018-01-21 00:32:28,799 INFO L323 AbstractCegarLoop]: Hoare is true [2018-01-21 00:32:28,799 INFO L324 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-01-21 00:32:28,799 INFO L325 AbstractCegarLoop]: Backedges is TWOTRACK [2018-01-21 00:32:28,800 INFO L326 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-01-21 00:32:28,800 INFO L327 AbstractCegarLoop]: Difference is false [2018-01-21 00:32:28,800 INFO L328 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-01-21 00:32:28,800 INFO L333 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == DUPFFshift_addErr0EnsuresViolation======== [2018-01-21 00:32:28,800 INFO L87 2NestedWordAutomaton]: Mode: main mode - execution starts in main procedure [2018-01-21 00:32:28,801 INFO L276 IsEmpty]: Start isEmpty. Operand 165 states. [2018-01-21 00:32:28,803 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 220 [2018-01-21 00:32:28,803 INFO L314 BasicCegarLoop]: Found error trace [2018-01-21 00:32:28,804 INFO L322 BasicCegarLoop]: trace histogram [11, 11, 11, 11, 6, 6, 6, 6, 6, 6, 6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-21 00:32:28,804 INFO L371 AbstractCegarLoop]: === Iteration 1 === [DUPFFshift_addErr0EnsuresViolation]=== [2018-01-21 00:32:28,804 INFO L82 PathProgramCache]: Analyzing trace with hash -1977716764, now seen corresponding path program 1 times [2018-01-21 00:32:28,804 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-21 00:32:28,805 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-21 00:32:28,805 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-21 00:32:28,805 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-21 00:32:28,805 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-21 00:32:28,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-21 00:32:28,817 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-21 00:32:28,985 INFO L134 CoverageAnalysis]: Checked inductivity of 437 backedges. 0 proven. 45 refuted. 0 times theorem prover too weak. 392 trivial. 0 not checked. [2018-01-21 00:32:28,986 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-01-21 00:32:28,986 INFO L187 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-01-21 00:32:28,986 INFO L199 CegarAbsIntRunner]: Running AI on error trace of length 220 with the following transitions: [2018-01-21 00:32:28,986 INFO L201 CegarAbsIntRunner]: [0], [1], [2], [3], [13], [15], [16], [17], [18], [28], [29], [30], [31], [36], [37], [38], [39], [41], [42], [43], [44], [45], [47], [48], [49], [50], [51], [60], [62], [64], [67], [70], [72], [75], [83], [87], [88], [92], [94], [97], [102], [105], [110], [112], [114], [115], [116], [117], [118], [120], [122], [124], [125], [126], [127], [128], [132], [135], [140], [142], [143], [144], [146], [150], [153], [158], [160], [161], [162], [163], [165], [197], [198], [200], [201], [206], [208], [213], [214], [218], [219], [220], [221], [222], [224], [225], [226], [227], [228], [230], [231], [234], [235], [236], [237], [238], [239], [240], [241], [242], [243], [244], [245], [246], [247], [248], [249], [250], [251], [252], [253], [254], [255], [256], [257], [258], [259], [260], [261], [262], [288], [289], [290] [2018-01-21 00:32:28,989 INFO L147 AbstractInterpreter]: Using domain VPDomain [2018-01-21 00:32:28,989 INFO L101 FixpointEngine]: Starting fixpoint engine with domain VPDomain (maxUnwinding=3, maxParallelStates=2) [2018-01-21 00:32:29,010 INFO L262 AbstractInterpreter]: Error location(s) were unreachable [2018-01-21 00:32:29,011 INFO L268 AbstractInterpreter]: Visited 19 different actions 19 times. Never merged. Never widened. Never found a fixpoint. Largest state had 32 variables. [2018-01-21 00:32:29,014 INFO L395 sIntCurrentIteration]: Generating AbsInt predicates [2018-01-21 00:32:29,065 INFO L232 lantSequenceWeakener]: Weakened 18 states. On average, predicates are now at 61.93% of their original sizes. [2018-01-21 00:32:29,065 INFO L408 sIntCurrentIteration]: Unifying AI predicates [2018-01-21 00:32:29,256 INFO L419 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-01-21 00:32:29,256 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-01-21 00:32:29,257 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [14] imperfect sequences [5] total 18 [2018-01-21 00:32:29,257 INFO L252 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-01-21 00:32:29,257 INFO L409 AbstractCegarLoop]: Interpolant automaton has 15 states [2018-01-21 00:32:29,257 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2018-01-21 00:32:29,257 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=178, Unknown=0, NotChecked=0, Total=210 [2018-01-21 00:32:29,257 INFO L87 Difference]: Start difference. First operand 165 states. Second operand 15 states. [2018-01-21 00:32:30,256 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-21 00:32:30,256 INFO L93 Difference]: Finished difference Result 184 states and 225 transitions. [2018-01-21 00:32:30,256 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2018-01-21 00:32:30,256 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 219 [2018-01-21 00:32:30,256 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-21 00:32:30,257 INFO L225 Difference]: With dead ends: 184 [2018-01-21 00:32:30,257 INFO L226 Difference]: Without dead ends: 0 [2018-01-21 00:32:30,257 INFO L525 BasicCegarLoop]: 2 DeclaredPredicates, 228 GetRequests, 204 SyntacticMatches, 1 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 85 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=104, Invalid=496, Unknown=0, NotChecked=0, Total=600 [2018-01-21 00:32:30,257 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-01-21 00:32:30,258 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-01-21 00:32:30,258 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-01-21 00:32:30,258 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-01-21 00:32:30,258 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 219 [2018-01-21 00:32:30,258 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-21 00:32:30,258 INFO L432 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-01-21 00:32:30,258 INFO L433 AbstractCegarLoop]: Interpolant automaton has 15 states. [2018-01-21 00:32:30,258 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-01-21 00:32:30,258 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-01-21 00:32:30,259 INFO L322 AbstractCegarLoop]: Interprodecural is true [2018-01-21 00:32:30,259 INFO L323 AbstractCegarLoop]: Hoare is true [2018-01-21 00:32:30,259 INFO L324 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-01-21 00:32:30,260 INFO L325 AbstractCegarLoop]: Backedges is TWOTRACK [2018-01-21 00:32:30,260 INFO L326 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-01-21 00:32:30,260 INFO L327 AbstractCegarLoop]: Difference is false [2018-01-21 00:32:30,260 INFO L328 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-01-21 00:32:30,260 INFO L333 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == DUPFFdegErr0EnsuresViolation======== [2018-01-21 00:32:30,260 INFO L87 2NestedWordAutomaton]: Mode: main mode - execution starts in main procedure [2018-01-21 00:32:30,262 INFO L276 IsEmpty]: Start isEmpty. Operand 165 states. [2018-01-21 00:32:30,262 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2018-01-21 00:32:30,262 INFO L314 BasicCegarLoop]: Found error trace [2018-01-21 00:32:30,262 INFO L322 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-21 00:32:30,262 INFO L371 AbstractCegarLoop]: === Iteration 1 === [DUPFFdegErr0EnsuresViolation]=== [2018-01-21 00:32:30,263 INFO L82 PathProgramCache]: Analyzing trace with hash -1016018150, now seen corresponding path program 1 times [2018-01-21 00:32:30,263 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-21 00:32:30,263 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-21 00:32:30,263 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-21 00:32:30,263 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-21 00:32:30,263 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-21 00:32:30,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-21 00:32:30,269 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-21 00:32:30,364 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-01-21 00:32:30,364 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-01-21 00:32:30,364 INFO L187 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-01-21 00:32:30,364 INFO L199 CegarAbsIntRunner]: Running AI on error trace of length 49 with the following transitions: [2018-01-21 00:32:30,365 INFO L201 CegarAbsIntRunner]: [0], [1], [2], [3], [13], [15], [16], [17], [18], [28], [29], [30], [32], [36], [37], [38], [39], [41], [42], [43], [44], [45], [47], [48], [49], [50], [51], [60], [197], [198], [218], [219], [220], [221], [222], [224], [288], [289], [290] [2018-01-21 00:32:30,366 INFO L147 AbstractInterpreter]: Using domain VPDomain [2018-01-21 00:32:30,366 INFO L101 FixpointEngine]: Starting fixpoint engine with domain VPDomain (maxUnwinding=3, maxParallelStates=2) [2018-01-21 00:32:30,389 INFO L262 AbstractInterpreter]: Error location(s) were unreachable [2018-01-21 00:32:30,390 INFO L268 AbstractInterpreter]: Visited 19 different actions 19 times. Never merged. Never widened. Never found a fixpoint. Largest state had 32 variables. [2018-01-21 00:32:30,391 INFO L395 sIntCurrentIteration]: Generating AbsInt predicates [2018-01-21 00:32:30,416 INFO L232 lantSequenceWeakener]: Weakened 18 states. On average, predicates are now at 61.93% of their original sizes. [2018-01-21 00:32:30,416 INFO L408 sIntCurrentIteration]: Unifying AI predicates [2018-01-21 00:32:30,523 INFO L419 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-01-21 00:32:30,523 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-01-21 00:32:30,523 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [14] imperfect sequences [5] total 18 [2018-01-21 00:32:30,523 INFO L252 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-01-21 00:32:30,524 INFO L409 AbstractCegarLoop]: Interpolant automaton has 15 states [2018-01-21 00:32:30,524 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2018-01-21 00:32:30,524 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=178, Unknown=0, NotChecked=0, Total=210 [2018-01-21 00:32:30,524 INFO L87 Difference]: Start difference. First operand 165 states. Second operand 15 states. [2018-01-21 00:32:31,376 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-21 00:32:31,376 INFO L93 Difference]: Finished difference Result 184 states and 225 transitions. [2018-01-21 00:32:31,376 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2018-01-21 00:32:31,376 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 48 [2018-01-21 00:32:31,376 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-21 00:32:31,376 INFO L225 Difference]: With dead ends: 184 [2018-01-21 00:32:31,376 INFO L226 Difference]: Without dead ends: 0 [2018-01-21 00:32:31,377 INFO L525 BasicCegarLoop]: 2 DeclaredPredicates, 57 GetRequests, 33 SyntacticMatches, 1 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 85 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=104, Invalid=496, Unknown=0, NotChecked=0, Total=600 [2018-01-21 00:32:31,377 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-01-21 00:32:31,377 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-01-21 00:32:31,377 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-01-21 00:32:31,377 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-01-21 00:32:31,377 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 48 [2018-01-21 00:32:31,378 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-21 00:32:31,378 INFO L432 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-01-21 00:32:31,378 INFO L433 AbstractCegarLoop]: Interpolant automaton has 15 states. [2018-01-21 00:32:31,378 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-01-21 00:32:31,378 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-01-21 00:32:31,379 INFO L322 AbstractCegarLoop]: Interprodecural is true [2018-01-21 00:32:31,379 INFO L323 AbstractCegarLoop]: Hoare is true [2018-01-21 00:32:31,379 INFO L324 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-01-21 00:32:31,379 INFO L325 AbstractCegarLoop]: Backedges is TWOTRACK [2018-01-21 00:32:31,379 INFO L326 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-01-21 00:32:31,379 INFO L327 AbstractCegarLoop]: Difference is false [2018-01-21 00:32:31,379 INFO L328 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-01-21 00:32:31,379 INFO L333 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == ULTIMATE.startErr0EnsuresViolation======== [2018-01-21 00:32:31,379 INFO L87 2NestedWordAutomaton]: Mode: main mode - execution starts in main procedure [2018-01-21 00:32:31,380 INFO L276 IsEmpty]: Start isEmpty. Operand 165 states. [2018-01-21 00:32:31,381 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2018-01-21 00:32:31,381 INFO L314 BasicCegarLoop]: Found error trace [2018-01-21 00:32:31,381 INFO L322 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-21 00:32:31,381 INFO L371 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0EnsuresViolation]=== [2018-01-21 00:32:31,382 INFO L82 PathProgramCache]: Analyzing trace with hash 181584116, now seen corresponding path program 1 times [2018-01-21 00:32:31,382 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-21 00:32:31,382 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-21 00:32:31,382 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-21 00:32:31,382 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-21 00:32:31,382 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-21 00:32:31,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-21 00:32:31,389 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-21 00:32:31,520 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2018-01-21 00:32:31,521 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-01-21 00:32:31,521 INFO L187 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-01-21 00:32:31,521 INFO L199 CegarAbsIntRunner]: Running AI on error trace of length 81 with the following transitions: [2018-01-21 00:32:31,521 INFO L201 CegarAbsIntRunner]: [0], [1], [2], [3], [13], [15], [16], [17], [18], [28], [29], [30], [31], [36], [37], [38], [39], [41], [42], [43], [44], [45], [47], [48], [49], [50], [51], [53], [54], [55], [56], [57], [58], [60], [62], [64], [70], [72], [75], [83], [87], [88], [91], [195], [197], [198], [212], [218], [219], [220], [221], [222], [223], [224], [225], [226], [227], [230], [231], [288], [289], [290], [291] [2018-01-21 00:32:31,522 INFO L147 AbstractInterpreter]: Using domain VPDomain [2018-01-21 00:32:31,523 INFO L101 FixpointEngine]: Starting fixpoint engine with domain VPDomain (maxUnwinding=3, maxParallelStates=2) [2018-01-21 00:32:31,549 INFO L262 AbstractInterpreter]: Error location(s) were unreachable [2018-01-21 00:32:31,549 INFO L268 AbstractInterpreter]: Visited 19 different actions 19 times. Never merged. Never widened. Never found a fixpoint. Largest state had 35 variables. [2018-01-21 00:32:31,551 INFO L395 sIntCurrentIteration]: Generating AbsInt predicates [2018-01-21 00:32:31,578 INFO L232 lantSequenceWeakener]: Weakened 18 states. On average, predicates are now at 61.93% of their original sizes. [2018-01-21 00:32:31,579 INFO L408 sIntCurrentIteration]: Unifying AI predicates [2018-01-21 00:32:31,683 INFO L419 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-01-21 00:32:31,683 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-01-21 00:32:31,684 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [14] imperfect sequences [5] total 18 [2018-01-21 00:32:31,684 INFO L252 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-01-21 00:32:31,684 INFO L409 AbstractCegarLoop]: Interpolant automaton has 15 states [2018-01-21 00:32:31,684 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2018-01-21 00:32:31,684 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=178, Unknown=0, NotChecked=0, Total=210 [2018-01-21 00:32:31,684 INFO L87 Difference]: Start difference. First operand 165 states. Second operand 15 states. [2018-01-21 00:32:32,484 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-21 00:32:32,485 INFO L93 Difference]: Finished difference Result 184 states and 225 transitions. [2018-01-21 00:32:32,485 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2018-01-21 00:32:32,485 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 80 [2018-01-21 00:32:32,485 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-21 00:32:32,485 INFO L225 Difference]: With dead ends: 184 [2018-01-21 00:32:32,485 INFO L226 Difference]: Without dead ends: 0 [2018-01-21 00:32:32,486 INFO L525 BasicCegarLoop]: 2 DeclaredPredicates, 89 GetRequests, 65 SyntacticMatches, 1 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 85 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=104, Invalid=496, Unknown=0, NotChecked=0, Total=600 [2018-01-21 00:32:32,487 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-01-21 00:32:32,487 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-01-21 00:32:32,487 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-01-21 00:32:32,487 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-01-21 00:32:32,487 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 80 [2018-01-21 00:32:32,487 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-21 00:32:32,488 INFO L432 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-01-21 00:32:32,488 INFO L433 AbstractCegarLoop]: Interpolant automaton has 15 states. [2018-01-21 00:32:32,488 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-01-21 00:32:32,488 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-01-21 00:32:32,489 INFO L322 AbstractCegarLoop]: Interprodecural is true [2018-01-21 00:32:32,489 INFO L323 AbstractCegarLoop]: Hoare is true [2018-01-21 00:32:32,489 INFO L324 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-01-21 00:32:32,489 INFO L325 AbstractCegarLoop]: Backedges is TWOTRACK [2018-01-21 00:32:32,489 INFO L326 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-01-21 00:32:32,489 INFO L327 AbstractCegarLoop]: Difference is false [2018-01-21 00:32:32,490 INFO L328 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-01-21 00:32:32,490 INFO L333 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == DUPFFfreeErr0EnsuresViolation======== [2018-01-21 00:32:32,490 INFO L87 2NestedWordAutomaton]: Mode: main mode - execution starts in main procedure [2018-01-21 00:32:32,491 INFO L276 IsEmpty]: Start isEmpty. Operand 165 states. [2018-01-21 00:32:32,494 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2018-01-21 00:32:32,494 INFO L314 BasicCegarLoop]: Found error trace [2018-01-21 00:32:32,495 INFO L322 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 6, 6, 6, 6, 6, 6, 6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-21 00:32:32,495 INFO L371 AbstractCegarLoop]: === Iteration 1 === [DUPFFfreeErr0EnsuresViolation]=== [2018-01-21 00:32:32,495 INFO L82 PathProgramCache]: Analyzing trace with hash 1926394005, now seen corresponding path program 1 times [2018-01-21 00:32:32,495 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-21 00:32:32,496 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-21 00:32:32,496 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-21 00:32:32,496 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-21 00:32:32,496 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-21 00:32:32,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-21 00:32:32,512 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-21 00:32:32,671 INFO L134 CoverageAnalysis]: Checked inductivity of 299 backedges. 0 proven. 45 refuted. 0 times theorem prover too weak. 254 trivial. 0 not checked. [2018-01-21 00:32:32,671 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-01-21 00:32:32,671 INFO L187 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-01-21 00:32:32,671 INFO L199 CegarAbsIntRunner]: Running AI on error trace of length 182 with the following transitions: [2018-01-21 00:32:32,672 INFO L201 CegarAbsIntRunner]: [0], [1], [2], [3], [13], [15], [16], [17], [18], [28], [29], [30], [31], [33], [35], [36], [37], [38], [39], [41], [42], [43], [44], [45], [47], [48], [49], [50], [51], [60], [62], [64], [67], [70], [72], [75], [83], [87], [88], [92], [94], [97], [102], [105], [110], [112], [114], [115], [116], [117], [118], [120], [122], [124], [125], [126], [127], [128], [176], [179], [187], [197], [198], [200], [201], [218], [219], [220], [221], [222], [224], [225], [226], [227], [228], [230], [231], [234], [235], [236], [237], [238], [239], [240], [241], [242], [243], [244], [245], [246], [247], [248], [249], [274], [275], [282], [288], [289], [290] [2018-01-21 00:32:32,673 INFO L147 AbstractInterpreter]: Using domain VPDomain [2018-01-21 00:32:32,673 INFO L101 FixpointEngine]: Starting fixpoint engine with domain VPDomain (maxUnwinding=3, maxParallelStates=2) [2018-01-21 00:32:32,693 INFO L262 AbstractInterpreter]: Error location(s) were unreachable [2018-01-21 00:32:32,693 INFO L268 AbstractInterpreter]: Visited 19 different actions 19 times. Never merged. Never widened. Never found a fixpoint. Largest state had 32 variables. [2018-01-21 00:32:32,694 INFO L395 sIntCurrentIteration]: Generating AbsInt predicates [2018-01-21 00:32:32,722 INFO L232 lantSequenceWeakener]: Weakened 18 states. On average, predicates are now at 61.93% of their original sizes. [2018-01-21 00:32:32,722 INFO L408 sIntCurrentIteration]: Unifying AI predicates [2018-01-21 00:32:32,858 INFO L419 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-01-21 00:32:32,858 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-01-21 00:32:32,858 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [14] imperfect sequences [5] total 18 [2018-01-21 00:32:32,858 INFO L252 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-01-21 00:32:32,859 INFO L409 AbstractCegarLoop]: Interpolant automaton has 15 states [2018-01-21 00:32:32,859 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2018-01-21 00:32:32,859 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=178, Unknown=0, NotChecked=0, Total=210 [2018-01-21 00:32:32,859 INFO L87 Difference]: Start difference. First operand 165 states. Second operand 15 states. [2018-01-21 00:32:33,761 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-21 00:32:33,762 INFO L93 Difference]: Finished difference Result 184 states and 225 transitions. [2018-01-21 00:32:33,762 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2018-01-21 00:32:33,762 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 181 [2018-01-21 00:32:33,762 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-21 00:32:33,762 INFO L225 Difference]: With dead ends: 184 [2018-01-21 00:32:33,762 INFO L226 Difference]: Without dead ends: 0 [2018-01-21 00:32:33,763 INFO L525 BasicCegarLoop]: 2 DeclaredPredicates, 190 GetRequests, 166 SyntacticMatches, 1 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 85 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=104, Invalid=496, Unknown=0, NotChecked=0, Total=600 [2018-01-21 00:32:33,764 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-01-21 00:32:33,764 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-01-21 00:32:33,764 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-01-21 00:32:33,764 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-01-21 00:32:33,764 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 181 [2018-01-21 00:32:33,764 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-21 00:32:33,765 INFO L432 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-01-21 00:32:33,765 INFO L433 AbstractCegarLoop]: Interpolant automaton has 15 states. [2018-01-21 00:32:33,765 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-01-21 00:32:33,765 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-01-21 00:32:33,766 INFO L322 AbstractCegarLoop]: Interprodecural is true [2018-01-21 00:32:33,766 INFO L323 AbstractCegarLoop]: Hoare is true [2018-01-21 00:32:33,766 INFO L324 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-01-21 00:32:33,766 INFO L325 AbstractCegarLoop]: Backedges is TWOTRACK [2018-01-21 00:32:33,766 INFO L326 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-01-21 00:32:33,766 INFO L327 AbstractCegarLoop]: Difference is false [2018-01-21 00:32:33,767 INFO L328 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-01-21 00:32:33,767 INFO L333 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == mainErr0EnsuresViolation======== [2018-01-21 00:32:33,767 INFO L87 2NestedWordAutomaton]: Mode: main mode - execution starts in main procedure [2018-01-21 00:32:33,768 INFO L276 IsEmpty]: Start isEmpty. Operand 165 states. [2018-01-21 00:32:33,769 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2018-01-21 00:32:33,769 INFO L314 BasicCegarLoop]: Found error trace [2018-01-21 00:32:33,770 INFO L322 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-21 00:32:33,770 INFO L371 AbstractCegarLoop]: === Iteration 1 === [mainErr0EnsuresViolation]=== [2018-01-21 00:32:33,770 INFO L82 PathProgramCache]: Analyzing trace with hash -1014335068, now seen corresponding path program 1 times [2018-01-21 00:32:33,770 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-21 00:32:33,771 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-21 00:32:33,771 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-21 00:32:33,771 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-21 00:32:33,771 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-21 00:32:33,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-21 00:32:33,781 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-21 00:32:33,848 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2018-01-21 00:32:33,849 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-01-21 00:32:33,849 INFO L187 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-01-21 00:32:33,849 INFO L199 CegarAbsIntRunner]: Running AI on error trace of length 79 with the following transitions: [2018-01-21 00:32:33,849 INFO L201 CegarAbsIntRunner]: [0], [1], [2], [3], [13], [15], [16], [17], [18], [28], [29], [30], [31], [36], [37], [38], [39], [41], [42], [43], [44], [45], [47], [48], [49], [50], [51], [53], [54], [55], [56], [57], [59], [60], [62], [64], [70], [72], [75], [83], [87], [88], [91], [195], [197], [198], [218], [219], [220], [221], [222], [223], [224], [225], [226], [227], [230], [231], [288], [289], [290] [2018-01-21 00:32:33,850 INFO L147 AbstractInterpreter]: Using domain VPDomain [2018-01-21 00:32:33,850 INFO L101 FixpointEngine]: Starting fixpoint engine with domain VPDomain (maxUnwinding=3, maxParallelStates=2) [2018-01-21 00:32:33,877 INFO L262 AbstractInterpreter]: Error location(s) were unreachable [2018-01-21 00:32:33,878 INFO L268 AbstractInterpreter]: Visited 19 different actions 19 times. Never merged. Never widened. Never found a fixpoint. Largest state had 35 variables. [2018-01-21 00:32:33,879 INFO L395 sIntCurrentIteration]: Generating AbsInt predicates [2018-01-21 00:32:33,916 INFO L232 lantSequenceWeakener]: Weakened 18 states. On average, predicates are now at 61.93% of their original sizes. [2018-01-21 00:32:33,916 INFO L408 sIntCurrentIteration]: Unifying AI predicates [2018-01-21 00:32:34,050 INFO L419 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-01-21 00:32:34,051 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-01-21 00:32:34,051 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [14] imperfect sequences [5] total 18 [2018-01-21 00:32:34,051 INFO L252 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-01-21 00:32:34,051 INFO L409 AbstractCegarLoop]: Interpolant automaton has 15 states [2018-01-21 00:32:34,051 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2018-01-21 00:32:34,051 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=178, Unknown=0, NotChecked=0, Total=210 [2018-01-21 00:32:34,051 INFO L87 Difference]: Start difference. First operand 165 states. Second operand 15 states. [2018-01-21 00:32:34,752 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-21 00:32:34,752 INFO L93 Difference]: Finished difference Result 184 states and 225 transitions. [2018-01-21 00:32:34,752 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2018-01-21 00:32:34,752 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 78 [2018-01-21 00:32:34,753 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-21 00:32:34,753 INFO L225 Difference]: With dead ends: 184 [2018-01-21 00:32:34,753 INFO L226 Difference]: Without dead ends: 0 [2018-01-21 00:32:34,767 INFO L525 BasicCegarLoop]: 2 DeclaredPredicates, 87 GetRequests, 63 SyntacticMatches, 1 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 85 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=104, Invalid=496, Unknown=0, NotChecked=0, Total=600 [2018-01-21 00:32:34,767 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-01-21 00:32:34,767 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-01-21 00:32:34,767 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-01-21 00:32:34,767 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-01-21 00:32:34,768 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 78 [2018-01-21 00:32:34,768 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-21 00:32:34,768 INFO L432 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-01-21 00:32:34,768 INFO L433 AbstractCegarLoop]: Interpolant automaton has 15 states. [2018-01-21 00:32:34,768 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-01-21 00:32:34,768 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-01-21 00:32:34,769 INFO L322 AbstractCegarLoop]: Interprodecural is true [2018-01-21 00:32:34,769 INFO L323 AbstractCegarLoop]: Hoare is true [2018-01-21 00:32:34,769 INFO L324 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-01-21 00:32:34,769 INFO L325 AbstractCegarLoop]: Backedges is TWOTRACK [2018-01-21 00:32:34,769 INFO L326 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-01-21 00:32:34,769 INFO L327 AbstractCegarLoop]: Difference is false [2018-01-21 00:32:34,769 INFO L328 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-01-21 00:32:34,769 INFO L333 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == FFmulErr0EnsuresViolation======== [2018-01-21 00:32:34,769 INFO L87 2NestedWordAutomaton]: Mode: main mode - execution starts in main procedure [2018-01-21 00:32:34,770 INFO L276 IsEmpty]: Start isEmpty. Operand 165 states. [2018-01-21 00:32:34,773 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2018-01-21 00:32:34,773 INFO L314 BasicCegarLoop]: Found error trace [2018-01-21 00:32:34,774 INFO L322 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 6, 6, 6, 6, 6, 6, 6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-21 00:32:34,774 INFO L371 AbstractCegarLoop]: === Iteration 1 === [FFmulErr0EnsuresViolation]=== [2018-01-21 00:32:34,774 INFO L82 PathProgramCache]: Analyzing trace with hash -1397073304, now seen corresponding path program 1 times [2018-01-21 00:32:34,774 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-21 00:32:34,775 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-21 00:32:34,775 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-21 00:32:34,775 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-21 00:32:34,775 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-21 00:32:34,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-21 00:32:34,789 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-21 00:32:34,893 INFO L134 CoverageAnalysis]: Checked inductivity of 339 backedges. 0 proven. 45 refuted. 0 times theorem prover too weak. 294 trivial. 0 not checked. [2018-01-21 00:32:34,894 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-01-21 00:32:34,894 INFO L187 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-01-21 00:32:34,894 INFO L199 CegarAbsIntRunner]: Running AI on error trace of length 191 with the following transitions: [2018-01-21 00:32:34,894 INFO L201 CegarAbsIntRunner]: [0], [1], [2], [3], [13], [15], [16], [17], [18], [28], [29], [30], [31], [36], [37], [38], [39], [41], [42], [43], [44], [45], [47], [48], [49], [50], [51], [60], [62], [64], [67], [70], [72], [75], [83], [87], [88], [92], [94], [97], [102], [105], [110], [112], [114], [115], [116], [117], [118], [120], [122], [124], [125], [126], [127], [128], [132], [135], [140], [142], [143], [144], [197], [198], [200], [201], [213], [215], [218], [219], [220], [221], [222], [224], [225], [226], [227], [228], [230], [231], [234], [235], [236], [237], [238], [239], [240], [241], [242], [243], [244], [245], [246], [247], [248], [249], [250], [251], [252], [253], [254], [288], [289], [290] [2018-01-21 00:32:34,896 INFO L147 AbstractInterpreter]: Using domain VPDomain [2018-01-21 00:32:34,896 INFO L101 FixpointEngine]: Starting fixpoint engine with domain VPDomain (maxUnwinding=3, maxParallelStates=2) [2018-01-21 00:32:34,924 INFO L262 AbstractInterpreter]: Error location(s) were unreachable [2018-01-21 00:32:34,924 INFO L268 AbstractInterpreter]: Visited 19 different actions 19 times. Never merged. Never widened. Never found a fixpoint. Largest state had 32 variables. [2018-01-21 00:32:34,925 INFO L395 sIntCurrentIteration]: Generating AbsInt predicates [2018-01-21 00:32:34,960 INFO L232 lantSequenceWeakener]: Weakened 18 states. On average, predicates are now at 61.93% of their original sizes. [2018-01-21 00:32:34,960 INFO L408 sIntCurrentIteration]: Unifying AI predicates [2018-01-21 00:32:35,088 INFO L419 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-01-21 00:32:35,088 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-01-21 00:32:35,088 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [14] imperfect sequences [5] total 18 [2018-01-21 00:32:35,088 INFO L252 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-01-21 00:32:35,089 INFO L409 AbstractCegarLoop]: Interpolant automaton has 15 states [2018-01-21 00:32:35,089 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2018-01-21 00:32:35,089 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=178, Unknown=0, NotChecked=0, Total=210 [2018-01-21 00:32:35,089 INFO L87 Difference]: Start difference. First operand 165 states. Second operand 15 states. [2018-01-21 00:32:35,791 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-21 00:32:35,792 INFO L93 Difference]: Finished difference Result 184 states and 225 transitions. [2018-01-21 00:32:35,792 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2018-01-21 00:32:35,792 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 190 [2018-01-21 00:32:35,792 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-21 00:32:35,792 INFO L225 Difference]: With dead ends: 184 [2018-01-21 00:32:35,792 INFO L226 Difference]: Without dead ends: 0 [2018-01-21 00:32:35,793 INFO L525 BasicCegarLoop]: 2 DeclaredPredicates, 199 GetRequests, 175 SyntacticMatches, 1 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 85 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=104, Invalid=496, Unknown=0, NotChecked=0, Total=600 [2018-01-21 00:32:35,793 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-01-21 00:32:35,793 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-01-21 00:32:35,794 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-01-21 00:32:35,794 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-01-21 00:32:35,794 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 190 [2018-01-21 00:32:35,794 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-21 00:32:35,794 INFO L432 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-01-21 00:32:35,794 INFO L433 AbstractCegarLoop]: Interpolant automaton has 15 states. [2018-01-21 00:32:35,795 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-01-21 00:32:35,795 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-01-21 00:32:35,797 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.01 12:32:35 BoogieIcfgContainer [2018-01-21 00:32:35,797 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-01-21 00:32:35,799 INFO L168 Benchmark]: Toolchain (without parser) took 20886.67 ms. Allocated memory was 304.6 MB in the beginning and 732.4 MB in the end (delta: 427.8 MB). Free memory was 263.5 MB in the beginning and 306.7 MB in the end (delta: -43.2 MB). Peak memory consumption was 384.6 MB. Max. memory is 5.3 GB. [2018-01-21 00:32:35,799 INFO L168 Benchmark]: CDTParser took 0.12 ms. Allocated memory is still 304.6 MB. Free memory is still 269.5 MB. There was no memory consumed. Max. memory is 5.3 GB. [2018-01-21 00:32:35,800 INFO L168 Benchmark]: CACSL2BoogieTranslator took 255.81 ms. Allocated memory is still 304.6 MB. Free memory was 263.5 MB in the beginning and 249.6 MB in the end (delta: 13.9 MB). Peak memory consumption was 13.9 MB. Max. memory is 5.3 GB. [2018-01-21 00:32:35,800 INFO L168 Benchmark]: Boogie Preprocessor took 46.70 ms. Allocated memory is still 304.6 MB. Free memory was 249.6 MB in the beginning and 247.6 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 5.3 GB. [2018-01-21 00:32:35,800 INFO L168 Benchmark]: RCFGBuilder took 569.43 ms. Allocated memory is still 304.6 MB. Free memory was 245.6 MB in the beginning and 206.7 MB in the end (delta: 38.9 MB). Peak memory consumption was 38.9 MB. Max. memory is 5.3 GB. [2018-01-21 00:32:35,801 INFO L168 Benchmark]: TraceAbstraction took 20008.82 ms. Allocated memory was 304.6 MB in the beginning and 732.4 MB in the end (delta: 427.8 MB). Free memory was 206.7 MB in the beginning and 306.7 MB in the end (delta: -100.0 MB). Peak memory consumption was 327.8 MB. Max. memory is 5.3 GB. [2018-01-21 00:32:35,802 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 304.6 MB. Free memory is still 269.5 MB. There was no memory consumed. Max. memory is 5.3 GB. * CACSL2BoogieTranslator took 255.81 ms. Allocated memory is still 304.6 MB. Free memory was 263.5 MB in the beginning and 249.6 MB in the end (delta: 13.9 MB). Peak memory consumption was 13.9 MB. Max. memory is 5.3 GB. * Boogie Preprocessor took 46.70 ms. Allocated memory is still 304.6 MB. Free memory was 249.6 MB in the beginning and 247.6 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 5.3 GB. * RCFGBuilder took 569.43 ms. Allocated memory is still 304.6 MB. Free memory was 245.6 MB in the beginning and 206.7 MB in the end (delta: 38.9 MB). Peak memory consumption was 38.9 MB. Max. memory is 5.3 GB. * TraceAbstraction took 20008.82 ms. Allocated memory was 304.6 MB in the beginning and 732.4 MB in the end (delta: 427.8 MB). Free memory was 206.7 MB in the beginning and 306.7 MB in the end (delta: -100.0 MB). Peak memory consumption was 327.8 MB. Max. memory is 5.3 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2: - StatisticsResult: ArrayEqualityDomainStatistics #Locations : 28 LocStat_MAX_WEQGRAPH_SIZE : 0 LocStat_MAX_SIZEOF_WEQEDGELABEL : 0 LocStat_NO_SUPPORTING_EQUALITIES : 272 LocStat_NO_SUPPORTING_DISEQUALITIES : 77 LocStat_NO_DISJUNCTIONS : -56 LocStat_MAX_NO_DISJUNCTIONS : -1 #Transitions : 37 TransStat_MAX_WEQGRAPH_SIZE : 0 TransStat_MAX_SIZEOF_WEQEDGELABEL : 0 TransStat_NO_SUPPORTING_EQUALITIES : 80 TransStat_NO_SUPPORTING_DISEQUALITIES : 15 TransStat_NO_DISJUNCTIONS : 37 TransStat_MAX_NO_DISJUNCTIONS : 1 - StatisticsResult: EqConstraintFactoryStatistics CONJOIN_DISJUNCTIVE(MILLISECONDS) : 0.745712 RENAME_VARIABLES(MILLISECONDS) : 0.420177 UNFREEZE(MILLISECONDS) : 0.000000 CONJOIN(MILLISECONDS) : 0.693843 PROJECTAWAY(MILLISECONDS) : 0.132378 ADD_WEAK_EQUALITY(MILLISECONDS) : 0.001176 DISJOIN(MILLISECONDS) : 0.000000 RENAME_VARIABLES_DISJUNCTIVE(MILLISECONDS) : 0.466739 ADD_EQUALITY(MILLISECONDS) : 0.140457 DISJOIN_DISJUNCTIVE(MILLISECONDS) : 0.000000 ADD_DISEQUALITY(MILLISECONDS) : 0.024932 #CONJOIN_DISJUNCTIVE : 59 #RENAME_VARIABLES : 87 #UNFREEZE : 0 #CONJOIN : 132 #PROJECTAWAY : 85 #ADD_WEAK_EQUALITY : 39 #DISJOIN : 0 #RENAME_VARIABLES_DISJUNCTIVE : 87 #ADD_EQUALITY : 101 #DISJOIN_DISJUNCTIVE : 0 #ADD_DISEQUALITY : 5 - StatisticsResult: ArrayEqualityDomainStatistics #Locations : 18 LocStat_MAX_WEQGRAPH_SIZE : 0 LocStat_MAX_SIZEOF_WEQEDGELABEL : 0 LocStat_NO_SUPPORTING_EQUALITIES : 165 LocStat_NO_SUPPORTING_DISEQUALITIES : 49 LocStat_NO_DISJUNCTIONS : -36 LocStat_MAX_NO_DISJUNCTIONS : -1 #Transitions : 25 TransStat_MAX_WEQGRAPH_SIZE : 0 TransStat_MAX_SIZEOF_WEQEDGELABEL : 0 TransStat_NO_SUPPORTING_EQUALITIES : 54 TransStat_NO_SUPPORTING_DISEQUALITIES : 12 TransStat_NO_DISJUNCTIONS : 25 TransStat_MAX_NO_DISJUNCTIONS : 1 - StatisticsResult: EqConstraintFactoryStatistics CONJOIN_DISJUNCTIVE(MILLISECONDS) : 0.548427 RENAME_VARIABLES(MILLISECONDS) : 0.318222 UNFREEZE(MILLISECONDS) : 0.000000 CONJOIN(MILLISECONDS) : 0.514809 PROJECTAWAY(MILLISECONDS) : 0.019405 ADD_WEAK_EQUALITY(MILLISECONDS) : 0.001104 DISJOIN(MILLISECONDS) : 0.000000 RENAME_VARIABLES_DISJUNCTIVE(MILLISECONDS) : 0.346524 ADD_EQUALITY(MILLISECONDS) : 0.031217 DISJOIN_DISJUNCTIVE(MILLISECONDS) : 0.000000 ADD_DISEQUALITY(MILLISECONDS) : 0.017997 #CONJOIN_DISJUNCTIVE : 34 #RENAME_VARIABLES : 47 #UNFREEZE : 0 #CONJOIN : 80 #PROJECTAWAY : 47 #ADD_WEAK_EQUALITY : 25 #DISJOIN : 0 #RENAME_VARIABLES_DISJUNCTIVE : 47 #ADD_EQUALITY : 68 #DISJOIN_DISJUNCTIVE : 0 #ADD_DISEQUALITY : 3 - StatisticsResult: ArrayEqualityDomainStatistics #Locations : 18 LocStat_MAX_WEQGRAPH_SIZE : 0 LocStat_MAX_SIZEOF_WEQEDGELABEL : 0 LocStat_NO_SUPPORTING_EQUALITIES : 165 LocStat_NO_SUPPORTING_DISEQUALITIES : 49 LocStat_NO_DISJUNCTIONS : -36 LocStat_MAX_NO_DISJUNCTIONS : -1 #Transitions : 25 TransStat_MAX_WEQGRAPH_SIZE : 0 TransStat_MAX_SIZEOF_WEQEDGELABEL : 0 TransStat_NO_SUPPORTING_EQUALITIES : 54 TransStat_NO_SUPPORTING_DISEQUALITIES : 12 TransStat_NO_DISJUNCTIONS : 25 TransStat_MAX_NO_DISJUNCTIONS : 1 - StatisticsResult: EqConstraintFactoryStatistics CONJOIN_DISJUNCTIVE(MILLISECONDS) : 0.332147 RENAME_VARIABLES(MILLISECONDS) : 0.210897 UNFREEZE(MILLISECONDS) : 0.000000 CONJOIN(MILLISECONDS) : 0.306384 PROJECTAWAY(MILLISECONDS) : 0.014336 ADD_WEAK_EQUALITY(MILLISECONDS) : 0.001119 DISJOIN(MILLISECONDS) : 0.000000 RENAME_VARIABLES_DISJUNCTIVE(MILLISECONDS) : 0.238642 ADD_EQUALITY(MILLISECONDS) : 0.017596 DISJOIN_DISJUNCTIVE(MILLISECONDS) : 0.000000 ADD_DISEQUALITY(MILLISECONDS) : 0.027402 #CONJOIN_DISJUNCTIVE : 34 #RENAME_VARIABLES : 47 #UNFREEZE : 0 #CONJOIN : 80 #PROJECTAWAY : 47 #ADD_WEAK_EQUALITY : 25 #DISJOIN : 0 #RENAME_VARIABLES_DISJUNCTIVE : 47 #ADD_EQUALITY : 68 #DISJOIN_DISJUNCTIVE : 0 #ADD_DISEQUALITY : 3 - StatisticsResult: ArrayEqualityDomainStatistics #Locations : 18 LocStat_MAX_WEQGRAPH_SIZE : 0 LocStat_MAX_SIZEOF_WEQEDGELABEL : 0 LocStat_NO_SUPPORTING_EQUALITIES : 165 LocStat_NO_SUPPORTING_DISEQUALITIES : 49 LocStat_NO_DISJUNCTIONS : -36 LocStat_MAX_NO_DISJUNCTIONS : -1 #Transitions : 25 TransStat_MAX_WEQGRAPH_SIZE : 0 TransStat_MAX_SIZEOF_WEQEDGELABEL : 0 TransStat_NO_SUPPORTING_EQUALITIES : 54 TransStat_NO_SUPPORTING_DISEQUALITIES : 12 TransStat_NO_DISJUNCTIONS : 25 TransStat_MAX_NO_DISJUNCTIONS : 1 - StatisticsResult: EqConstraintFactoryStatistics CONJOIN_DISJUNCTIVE(MILLISECONDS) : 0.408079 RENAME_VARIABLES(MILLISECONDS) : 0.330425 UNFREEZE(MILLISECONDS) : 0.000000 CONJOIN(MILLISECONDS) : 0.375704 PROJECTAWAY(MILLISECONDS) : 0.020581 ADD_WEAK_EQUALITY(MILLISECONDS) : 0.001382 DISJOIN(MILLISECONDS) : 0.000000 RENAME_VARIABLES_DISJUNCTIVE(MILLISECONDS) : 0.362106 ADD_EQUALITY(MILLISECONDS) : 0.020604 DISJOIN_DISJUNCTIVE(MILLISECONDS) : 0.000000 ADD_DISEQUALITY(MILLISECONDS) : 0.012785 #CONJOIN_DISJUNCTIVE : 34 #RENAME_VARIABLES : 47 #UNFREEZE : 0 #CONJOIN : 80 #PROJECTAWAY : 47 #ADD_WEAK_EQUALITY : 25 #DISJOIN : 0 #RENAME_VARIABLES_DISJUNCTIVE : 47 #ADD_EQUALITY : 68 #DISJOIN_DISJUNCTIVE : 0 #ADD_DISEQUALITY : 3 - StatisticsResult: ArrayEqualityDomainStatistics #Locations : 18 LocStat_MAX_WEQGRAPH_SIZE : 0 LocStat_MAX_SIZEOF_WEQEDGELABEL : 0 LocStat_NO_SUPPORTING_EQUALITIES : 165 LocStat_NO_SUPPORTING_DISEQUALITIES : 49 LocStat_NO_DISJUNCTIONS : -36 LocStat_MAX_NO_DISJUNCTIONS : -1 #Transitions : 25 TransStat_MAX_WEQGRAPH_SIZE : 0 TransStat_MAX_SIZEOF_WEQEDGELABEL : 0 TransStat_NO_SUPPORTING_EQUALITIES : 54 TransStat_NO_SUPPORTING_DISEQUALITIES : 12 TransStat_NO_DISJUNCTIONS : 25 TransStat_MAX_NO_DISJUNCTIONS : 1 - StatisticsResult: EqConstraintFactoryStatistics CONJOIN_DISJUNCTIVE(MILLISECONDS) : 0.279608 RENAME_VARIABLES(MILLISECONDS) : 0.133013 UNFREEZE(MILLISECONDS) : 0.000000 CONJOIN(MILLISECONDS) : 0.253135 PROJECTAWAY(MILLISECONDS) : 0.009481 ADD_WEAK_EQUALITY(MILLISECONDS) : 0.000832 DISJOIN(MILLISECONDS) : 0.000000 RENAME_VARIABLES_DISJUNCTIVE(MILLISECONDS) : 0.152869 ADD_EQUALITY(MILLISECONDS) : 0.011699 DISJOIN_DISJUNCTIVE(MILLISECONDS) : 0.000000 ADD_DISEQUALITY(MILLISECONDS) : 0.007006 #CONJOIN_DISJUNCTIVE : 34 #RENAME_VARIABLES : 47 #UNFREEZE : 0 #CONJOIN : 80 #PROJECTAWAY : 47 #ADD_WEAK_EQUALITY : 25 #DISJOIN : 0 #RENAME_VARIABLES_DISJUNCTIVE : 47 #ADD_EQUALITY : 68 #DISJOIN_DISJUNCTIVE : 0 #ADD_DISEQUALITY : 3 - StatisticsResult: ArrayEqualityDomainStatistics #Locations : 18 LocStat_MAX_WEQGRAPH_SIZE : 0 LocStat_MAX_SIZEOF_WEQEDGELABEL : 0 LocStat_NO_SUPPORTING_EQUALITIES : 165 LocStat_NO_SUPPORTING_DISEQUALITIES : 49 LocStat_NO_DISJUNCTIONS : -36 LocStat_MAX_NO_DISJUNCTIONS : -1 #Transitions : 25 TransStat_MAX_WEQGRAPH_SIZE : 0 TransStat_MAX_SIZEOF_WEQEDGELABEL : 0 TransStat_NO_SUPPORTING_EQUALITIES : 54 TransStat_NO_SUPPORTING_DISEQUALITIES : 12 TransStat_NO_DISJUNCTIONS : 25 TransStat_MAX_NO_DISJUNCTIONS : 1 - StatisticsResult: EqConstraintFactoryStatistics CONJOIN_DISJUNCTIVE(MILLISECONDS) : 0.193435 RENAME_VARIABLES(MILLISECONDS) : 0.126987 UNFREEZE(MILLISECONDS) : 0.000000 CONJOIN(MILLISECONDS) : 0.177204 PROJECTAWAY(MILLISECONDS) : 0.007878 ADD_WEAK_EQUALITY(MILLISECONDS) : 0.001372 DISJOIN(MILLISECONDS) : 0.000000 RENAME_VARIABLES_DISJUNCTIVE(MILLISECONDS) : 0.143580 ADD_EQUALITY(MILLISECONDS) : 0.009480 DISJOIN_DISJUNCTIVE(MILLISECONDS) : 0.000000 ADD_DISEQUALITY(MILLISECONDS) : 0.006264 #CONJOIN_DISJUNCTIVE : 34 #RENAME_VARIABLES : 47 #UNFREEZE : 0 #CONJOIN : 80 #PROJECTAWAY : 47 #ADD_WEAK_EQUALITY : 25 #DISJOIN : 0 #RENAME_VARIABLES_DISJUNCTIVE : 47 #ADD_EQUALITY : 68 #DISJOIN_DISJUNCTIVE : 0 #ADD_DISEQUALITY : 3 - StatisticsResult: ArrayEqualityDomainStatistics #Locations : 18 LocStat_MAX_WEQGRAPH_SIZE : 0 LocStat_MAX_SIZEOF_WEQEDGELABEL : 0 LocStat_NO_SUPPORTING_EQUALITIES : 165 LocStat_NO_SUPPORTING_DISEQUALITIES : 49 LocStat_NO_DISJUNCTIONS : -36 LocStat_MAX_NO_DISJUNCTIONS : -1 #Transitions : 25 TransStat_MAX_WEQGRAPH_SIZE : 0 TransStat_MAX_SIZEOF_WEQEDGELABEL : 0 TransStat_NO_SUPPORTING_EQUALITIES : 54 TransStat_NO_SUPPORTING_DISEQUALITIES : 12 TransStat_NO_DISJUNCTIONS : 25 TransStat_MAX_NO_DISJUNCTIONS : 1 - StatisticsResult: EqConstraintFactoryStatistics CONJOIN_DISJUNCTIVE(MILLISECONDS) : 0.399126 RENAME_VARIABLES(MILLISECONDS) : 0.312093 UNFREEZE(MILLISECONDS) : 0.000000 CONJOIN(MILLISECONDS) : 0.368198 PROJECTAWAY(MILLISECONDS) : 0.019201 ADD_WEAK_EQUALITY(MILLISECONDS) : 0.001139 DISJOIN(MILLISECONDS) : 0.000000 RENAME_VARIABLES_DISJUNCTIVE(MILLISECONDS) : 0.342889 ADD_EQUALITY(MILLISECONDS) : 0.020264 DISJOIN_DISJUNCTIVE(MILLISECONDS) : 0.000000 ADD_DISEQUALITY(MILLISECONDS) : 0.008961 #CONJOIN_DISJUNCTIVE : 34 #RENAME_VARIABLES : 47 #UNFREEZE : 0 #CONJOIN : 80 #PROJECTAWAY : 49 #ADD_WEAK_EQUALITY : 25 #DISJOIN : 0 #RENAME_VARIABLES_DISJUNCTIVE : 47 #ADD_EQUALITY : 68 #DISJOIN_DISJUNCTIVE : 0 #ADD_DISEQUALITY : 3 - StatisticsResult: ArrayEqualityDomainStatistics #Locations : 18 LocStat_MAX_WEQGRAPH_SIZE : 0 LocStat_MAX_SIZEOF_WEQEDGELABEL : 0 LocStat_NO_SUPPORTING_EQUALITIES : 165 LocStat_NO_SUPPORTING_DISEQUALITIES : 49 LocStat_NO_DISJUNCTIONS : -36 LocStat_MAX_NO_DISJUNCTIONS : -1 #Transitions : 25 TransStat_MAX_WEQGRAPH_SIZE : 0 TransStat_MAX_SIZEOF_WEQEDGELABEL : 0 TransStat_NO_SUPPORTING_EQUALITIES : 54 TransStat_NO_SUPPORTING_DISEQUALITIES : 12 TransStat_NO_DISJUNCTIONS : 25 TransStat_MAX_NO_DISJUNCTIONS : 1 - StatisticsResult: EqConstraintFactoryStatistics CONJOIN_DISJUNCTIVE(MILLISECONDS) : 0.152069 RENAME_VARIABLES(MILLISECONDS) : 0.125355 UNFREEZE(MILLISECONDS) : 0.000000 CONJOIN(MILLISECONDS) : 0.137328 PROJECTAWAY(MILLISECONDS) : 0.006979 ADD_WEAK_EQUALITY(MILLISECONDS) : 0.000803 DISJOIN(MILLISECONDS) : 0.000000 RENAME_VARIABLES_DISJUNCTIVE(MILLISECONDS) : 0.141715 ADD_EQUALITY(MILLISECONDS) : 0.008277 DISJOIN_DISJUNCTIVE(MILLISECONDS) : 0.000000 ADD_DISEQUALITY(MILLISECONDS) : 0.007590 #CONJOIN_DISJUNCTIVE : 34 #RENAME_VARIABLES : 47 #UNFREEZE : 0 #CONJOIN : 80 #PROJECTAWAY : 47 #ADD_WEAK_EQUALITY : 25 #DISJOIN : 0 #RENAME_VARIABLES_DISJUNCTIVE : 47 #ADD_EQUALITY : 68 #DISJOIN_DISJUNCTIVE : 0 #ADD_DISEQUALITY : 3 - StatisticsResult: ArrayEqualityDomainStatistics #Locations : 18 LocStat_MAX_WEQGRAPH_SIZE : 0 LocStat_MAX_SIZEOF_WEQEDGELABEL : 0 LocStat_NO_SUPPORTING_EQUALITIES : 165 LocStat_NO_SUPPORTING_DISEQUALITIES : 49 LocStat_NO_DISJUNCTIONS : -36 LocStat_MAX_NO_DISJUNCTIONS : -1 #Transitions : 25 TransStat_MAX_WEQGRAPH_SIZE : 0 TransStat_MAX_SIZEOF_WEQEDGELABEL : 0 TransStat_NO_SUPPORTING_EQUALITIES : 54 TransStat_NO_SUPPORTING_DISEQUALITIES : 12 TransStat_NO_DISJUNCTIONS : 25 TransStat_MAX_NO_DISJUNCTIONS : 1 - StatisticsResult: EqConstraintFactoryStatistics CONJOIN_DISJUNCTIVE(MILLISECONDS) : 0.240030 RENAME_VARIABLES(MILLISECONDS) : 0.213121 UNFREEZE(MILLISECONDS) : 0.000000 CONJOIN(MILLISECONDS) : 0.217209 PROJECTAWAY(MILLISECONDS) : 0.010547 ADD_WEAK_EQUALITY(MILLISECONDS) : 0.000928 DISJOIN(MILLISECONDS) : 0.000000 RENAME_VARIABLES_DISJUNCTIVE(MILLISECONDS) : 0.237985 ADD_EQUALITY(MILLISECONDS) : 0.011719 DISJOIN_DISJUNCTIVE(MILLISECONDS) : 0.000000 ADD_DISEQUALITY(MILLISECONDS) : 0.007993 #CONJOIN_DISJUNCTIVE : 34 #RENAME_VARIABLES : 47 #UNFREEZE : 0 #CONJOIN : 80 #PROJECTAWAY : 47 #ADD_WEAK_EQUALITY : 25 #DISJOIN : 0 #RENAME_VARIABLES_DISJUNCTIVE : 47 #ADD_EQUALITY : 68 #DISJOIN_DISJUNCTIVE : 0 #ADD_DISEQUALITY : 3 - StatisticsResult: ArrayEqualityDomainStatistics #Locations : 18 LocStat_MAX_WEQGRAPH_SIZE : 0 LocStat_MAX_SIZEOF_WEQEDGELABEL : 0 LocStat_NO_SUPPORTING_EQUALITIES : 165 LocStat_NO_SUPPORTING_DISEQUALITIES : 49 LocStat_NO_DISJUNCTIONS : -36 LocStat_MAX_NO_DISJUNCTIONS : -1 #Transitions : 25 TransStat_MAX_WEQGRAPH_SIZE : 0 TransStat_MAX_SIZEOF_WEQEDGELABEL : 0 TransStat_NO_SUPPORTING_EQUALITIES : 54 TransStat_NO_SUPPORTING_DISEQUALITIES : 12 TransStat_NO_DISJUNCTIONS : 25 TransStat_MAX_NO_DISJUNCTIONS : 1 - StatisticsResult: EqConstraintFactoryStatistics CONJOIN_DISJUNCTIVE(MILLISECONDS) : 0.261674 RENAME_VARIABLES(MILLISECONDS) : 0.224168 UNFREEZE(MILLISECONDS) : 0.000000 CONJOIN(MILLISECONDS) : 0.237221 PROJECTAWAY(MILLISECONDS) : 0.010416 ADD_WEAK_EQUALITY(MILLISECONDS) : 0.001096 DISJOIN(MILLISECONDS) : 0.000000 RENAME_VARIABLES_DISJUNCTIVE(MILLISECONDS) : 0.250899 ADD_EQUALITY(MILLISECONDS) : 0.012302 DISJOIN_DISJUNCTIVE(MILLISECONDS) : 0.000000 ADD_DISEQUALITY(MILLISECONDS) : 0.008258 #CONJOIN_DISJUNCTIVE : 34 #RENAME_VARIABLES : 47 #UNFREEZE : 0 #CONJOIN : 80 #PROJECTAWAY : 47 #ADD_WEAK_EQUALITY : 25 #DISJOIN : 0 #RENAME_VARIABLES_DISJUNCTIVE : 47 #ADD_EQUALITY : 68 #DISJOIN_DISJUNCTIVE : 0 #ADD_DISEQUALITY : 3 * 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 free ensures #res.base == #ptr.base && #res.offset == #ptr.offset; 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: 973]: not all allocated memory was freed not all allocated memory was freed We found a FailurePath: [L1047] DUPFF f, g, cf, cg, h; VAL [f={16:0}, g={17:0}] [L1048] CALL DUPFFnew(1) VAL [\old(maxdeg)=1] [L975] EXPR, FCALL malloc(sizeof(struct DUPFFstruct)) VAL [\old(maxdeg)=1, malloc(sizeof(struct DUPFFstruct))={14:0}, maxdeg=1] [L975] DUPFF ans = (DUPFF)malloc(sizeof(struct DUPFFstruct)); VAL [\old(maxdeg)=1, ans={14:0}, malloc(sizeof(struct DUPFFstruct))={14:0}, maxdeg=1] [L976] FCALL ans->coeffs = 0 VAL [\old(maxdeg)=1, ans={14:0}, malloc(sizeof(struct DUPFFstruct))={14:0}, maxdeg=1] [L977] COND TRUE maxdeg >= 0 VAL [\old(maxdeg)=1, ans={14:0}, malloc(sizeof(struct DUPFFstruct))={14:0}, maxdeg=1] [L978] EXPR, FCALL malloc((maxdeg+1)*sizeof(FFelem)) VAL [\old(maxdeg)=1, ans={14:0}, malloc((maxdeg+1)*sizeof(FFelem))={24:0}, malloc(sizeof(struct DUPFFstruct))={14:0}, maxdeg=1] [L978] FCALL ans->coeffs = (FFelem*)malloc((maxdeg+1)*sizeof(FFelem)) VAL [\old(maxdeg)=1, ans={14:0}, malloc((maxdeg+1)*sizeof(FFelem))={24:0}, malloc(sizeof(struct DUPFFstruct))={14:0}, maxdeg=1] [L979] EXPR, FCALL ans->coeffs VAL [\old(maxdeg)=1, ans={14:0}, ans->coeffs={24:0}, malloc((maxdeg+1)*sizeof(FFelem))={24:0}, malloc(sizeof(struct DUPFFstruct))={14:0}, maxdeg=1] [L979] FCALL memset(ans->coeffs, 0, (maxdeg+1)*sizeof(FFelem)) VAL [\old(maxdeg)=1, ans={14:0}, ans->coeffs={24:0}, malloc((maxdeg+1)*sizeof(FFelem))={24:0}, malloc(sizeof(struct DUPFFstruct))={14:0}, maxdeg=1, memset(ans->coeffs, 0, (maxdeg+1)*sizeof(FFelem))={24:0}] [L981] FCALL ans->maxdeg = maxdeg VAL [\old(maxdeg)=1, ans={14:0}, malloc((maxdeg+1)*sizeof(FFelem))={24:0}, malloc(sizeof(struct DUPFFstruct))={14:0}, maxdeg=1] [L982] FCALL ans->deg = -1 VAL [\old(maxdeg)=1, ans={14:0}, malloc((maxdeg+1)*sizeof(FFelem))={24:0}, malloc(sizeof(struct DUPFFstruct))={14:0}, maxdeg=1] [L983] return ans; VAL [\old(maxdeg)=1, \result={14:0}, ans={14:0}, malloc((maxdeg+1)*sizeof(FFelem))={24:0}, malloc(sizeof(struct DUPFFstruct))={14:0}, maxdeg=1] - StatisticsResult: Ultimate Automizer benchmark data for error location: DUPFFnewErr0EnsuresViolation CFG has 12 procedures, 165 locations, 11 error locations. UNSAFE Result, 7.6s OverallTime, 10 OverallIterations, 8 TraceHistogramMax, 1.5s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 959 SDtfs, 424 SDslu, 6860 SDs, 0 SdLazy, 808 SolverSat, 50 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1023 GetRequests, 791 SyntacticMatches, 51 SemanticMatches, 181 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1155 ImplicationChecksByTransitivity, 2.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=165occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.2s AbstIntTime, 1 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 9 MinimizatonAttempts, 72 StatesRemovedByMinimization, 9 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.1s SsaConstructionTime, 1.6s SatisfiabilityAnalysisTime, 3.3s InterpolantComputationTime, 755 NumberOfCodeBlocks, 755 NumberOfCodeBlocksAsserted, 44 NumberOfCheckSat, 1130 ConstructedInterpolants, 72 QuantifiedInterpolants, 110820 SizeOfPredicates, 42 NumberOfNonLiveVariables, 2114 ConjunctsInSsa, 126 ConjunctsInUnsatCore, 37 InterpolantComputations, 2 PerfectInterpolantSequences, 0/420 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, REUSE_STATISTICS: No data available - PositiveResult [Line: 998]: 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: DUPFFexgcdErr0EnsuresViolation CFG has 12 procedures, 165 locations, 11 error locations. SAFE Result, 2.0s OverallTime, 1 OverallIterations, 3 TraceHistogramMax, 1.5s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 12 SDtfs, 51 SDslu, 27 SDs, 0 SdLazy, 229 SolverSat, 14 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.5s Time, PredicateUnifierStatistics: 2 DeclaredPredicates, 80 GetRequests, 56 SyntacticMatches, 1 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 85 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=165occurred 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, 1 AbstIntIterations, 1 AbstIntStrong, 0.9768631170416884 AbsIntWeakeningRatio, 1.6 AbsIntAvgWeakeningVarsNumRemoved, 1.4714285714285715 AbsIntAvgWeakenedConjuncts, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 71 NumberOfCodeBlocks, 71 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 70 ConstructedInterpolants, 0 QuantifiedInterpolants, 7910 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 0 PerfectInterpolantSequences, 16/25 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 12 procedures, 165 locations, 11 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=165occurred 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 - PositiveResult [Line: 991]: 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: DUPFFcopyErr0EnsuresViolation CFG has 12 procedures, 165 locations, 11 error locations. SAFE Result, 1.5s OverallTime, 1 OverallIterations, 5 TraceHistogramMax, 1.1s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 12 SDtfs, 52 SDslu, 25 SDs, 0 SdLazy, 213 SolverSat, 14 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.3s Time, PredicateUnifierStatistics: 2 DeclaredPredicates, 98 GetRequests, 74 SyntacticMatches, 1 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 85 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=165occurred 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, 1 AbstIntIterations, 1 AbstIntStrong, 0.9815956612831613 AbsIntWeakeningRatio, 1.5113636363636365 AbsIntAvgWeakeningVarsNumRemoved, 1.1704545454545454 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, 89 NumberOfCodeBlocks, 89 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 88 ConstructedInterpolants, 0 QuantifiedInterpolants, 11528 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 0 PerfectInterpolantSequences, 51/60 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, REUSE_STATISTICS: No data available - PositiveResult [Line: 988]: 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: DUPFFswapErr0EnsuresViolation CFG has 12 procedures, 165 locations, 11 error locations. SAFE Result, 1.6s OverallTime, 1 OverallIterations, 6 TraceHistogramMax, 1.2s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 12 SDtfs, 51 SDslu, 27 SDs, 0 SdLazy, 229 SolverSat, 14 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.3s Time, PredicateUnifierStatistics: 2 DeclaredPredicates, 173 GetRequests, 149 SyntacticMatches, 1 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 85 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=165occurred 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, 1 AbstIntIterations, 1 AbstIntStrong, 0.9900639152939766 AbsIntWeakeningRatio, 1.3374233128834356 AbsIntAvgWeakeningVarsNumRemoved, 0.6319018404907976 AbsIntAvgWeakenedConjuncts, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 164 NumberOfCodeBlocks, 164 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 163 ConstructedInterpolants, 0 QuantifiedInterpolants, 33578 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 0 PerfectInterpolantSequences, 183/228 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, REUSE_STATISTICS: No data available - PositiveResult [Line: 995]: 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: DUPFFshift_addErr0EnsuresViolation CFG has 12 procedures, 165 locations, 11 error locations. SAFE Result, 1.4s OverallTime, 1 OverallIterations, 11 TraceHistogramMax, 1.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 12 SDtfs, 52 SDslu, 23 SDs, 0 SdLazy, 197 SolverSat, 14 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 2 DeclaredPredicates, 228 GetRequests, 204 SyntacticMatches, 1 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 85 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=165occurred 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, 1 AbstIntIterations, 1 AbstIntStrong, 0.992570725655588 AbsIntWeakeningRatio, 1.4724770642201834 AbsIntAvgWeakeningVarsNumRemoved, 0.4724770642201835 AbsIntAvgWeakenedConjuncts, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 219 NumberOfCodeBlocks, 219 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 218 ConstructedInterpolants, 0 QuantifiedInterpolants, 56898 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 0 PerfectInterpolantSequences, 392/437 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, REUSE_STATISTICS: No data available - PositiveResult [Line: 969]: 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: DUPFFdegErr0EnsuresViolation CFG has 12 procedures, 165 locations, 11 error locations. SAFE Result, 1.1s OverallTime, 1 OverallIterations, 2 TraceHistogramMax, 0.8s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 12 SDtfs, 47 SDslu, 29 SDs, 0 SdLazy, 240 SolverSat, 13 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 2 DeclaredPredicates, 57 GetRequests, 33 SyntacticMatches, 1 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 85 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=165occurred 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, 1 AbstIntIterations, 1 AbstIntStrong, 0.9655408126152804 AbsIntWeakeningRatio, 1.8297872340425532 AbsIntAvgWeakeningVarsNumRemoved, 2.1914893617021276 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, 48 NumberOfCodeBlocks, 48 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 47 ConstructedInterpolants, 0 QuantifiedInterpolants, 4230 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 0 PerfectInterpolantSequences, 1/10 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, REUSE_STATISTICS: No data available - PositiveResult [Line: 1]: 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: ULTIMATE.startErr0EnsuresViolation CFG has 12 procedures, 165 locations, 11 error locations. SAFE Result, 1.1s OverallTime, 1 OverallIterations, 3 TraceHistogramMax, 0.8s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 12 SDtfs, 51 SDslu, 25 SDs, 0 SdLazy, 212 SolverSat, 14 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 2 DeclaredPredicates, 89 GetRequests, 65 SyntacticMatches, 1 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 85 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=165occurred 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, 1 AbstIntIterations, 1 AbstIntStrong, 0.979498964467319 AbsIntWeakeningRatio, 1.5443037974683544 AbsIntAvgWeakeningVarsNumRemoved, 1.3037974683544304 AbsIntAvgWeakenedConjuncts, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 80 NumberOfCodeBlocks, 80 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 79 ConstructedInterpolants, 0 QuantifiedInterpolants, 9638 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 0 PerfectInterpolantSequences, 16/25 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, REUSE_STATISTICS: No data available - PositiveResult [Line: 985]: 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: DUPFFfreeErr0EnsuresViolation CFG has 12 procedures, 165 locations, 11 error locations. SAFE Result, 1.2s OverallTime, 1 OverallIterations, 8 TraceHistogramMax, 0.9s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 12 SDtfs, 42 SDslu, 29 SDs, 0 SdLazy, 240 SolverSat, 11 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.3s Time, PredicateUnifierStatistics: 2 DeclaredPredicates, 190 GetRequests, 166 SyntacticMatches, 1 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 85 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=165occurred 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, 1 AbstIntIterations, 1 AbstIntStrong, 0.99100232329399 AbsIntWeakeningRatio, 1.4666666666666666 AbsIntAvgWeakeningVarsNumRemoved, 0.5722222222222222 AbsIntAvgWeakenedConjuncts, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 181 NumberOfCodeBlocks, 181 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 180 ConstructedInterpolants, 0 QuantifiedInterpolants, 40140 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 0 PerfectInterpolantSequences, 254/299 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, REUSE_STATISTICS: No data available - PositiveResult [Line: 1045]: 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 12 procedures, 165 locations, 11 error locations. SAFE Result, 1.0s OverallTime, 1 OverallIterations, 3 TraceHistogramMax, 0.7s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 12 SDtfs, 52 SDslu, 23 SDs, 0 SdLazy, 197 SolverSat, 14 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 2 DeclaredPredicates, 87 GetRequests, 63 SyntacticMatches, 1 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 85 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=165occurred 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, 1 AbstIntIterations, 1 AbstIntStrong, 0.9789664700378987 AbsIntWeakeningRatio, 1.5714285714285714 AbsIntAvgWeakeningVarsNumRemoved, 1.3376623376623376 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, 78 NumberOfCodeBlocks, 78 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 77 ConstructedInterpolants, 0 QuantifiedInterpolants, 9240 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 0 PerfectInterpolantSequences, 16/25 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, REUSE_STATISTICS: No data available - PositiveResult [Line: 958]: 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: FFmulErr0EnsuresViolation CFG has 12 procedures, 165 locations, 11 error locations. SAFE Result, 1.0s OverallTime, 1 OverallIterations, 9 TraceHistogramMax, 0.7s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 12 SDtfs, 52 SDslu, 23 SDs, 0 SdLazy, 197 SolverSat, 14 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 2 DeclaredPredicates, 199 GetRequests, 175 SyntacticMatches, 1 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 85 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=165occurred 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, 1 AbstIntIterations, 1 AbstIntStrong, 0.9914307840895142 AbsIntWeakeningRatio, 1.4603174603174602 AbsIntAvgWeakeningVarsNumRemoved, 0.544973544973545 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, 190 NumberOfCodeBlocks, 190 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 189 ConstructedInterpolants, 0 QuantifiedInterpolants, 43848 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 0 PerfectInterpolantSequences, 294/339 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/20020406-1_false-valid-memtrack.i_mempurity-32bit-Automizer_Taipan+AI_EQ_imprecise.epf_AutomizerC.xml/Csv-Benchmark-0-2018-01-21_00-32-35-837.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/20020406-1_false-valid-memtrack.i_mempurity-32bit-Automizer_Taipan+AI_EQ_imprecise.epf_AutomizerC.xml/Csv-VPDomainBenchmark-0-2018-01-21_00-32-35-837.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/20020406-1_false-valid-memtrack.i_mempurity-32bit-Automizer_Taipan+AI_EQ_imprecise.epf_AutomizerC.xml/Csv-BenchmarkWithCounters-0-2018-01-21_00-32-35-837.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/20020406-1_false-valid-memtrack.i_mempurity-32bit-Automizer_Taipan+AI_EQ_imprecise.epf_AutomizerC.xml/Csv-VPDomainBenchmark-1-2018-01-21_00-32-35-837.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/20020406-1_false-valid-memtrack.i_mempurity-32bit-Automizer_Taipan+AI_EQ_imprecise.epf_AutomizerC.xml/Csv-BenchmarkWithCounters-1-2018-01-21_00-32-35-837.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/20020406-1_false-valid-memtrack.i_mempurity-32bit-Automizer_Taipan+AI_EQ_imprecise.epf_AutomizerC.xml/Csv-VPDomainBenchmark-2-2018-01-21_00-32-35-837.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/20020406-1_false-valid-memtrack.i_mempurity-32bit-Automizer_Taipan+AI_EQ_imprecise.epf_AutomizerC.xml/Csv-BenchmarkWithCounters-2-2018-01-21_00-32-35-837.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/20020406-1_false-valid-memtrack.i_mempurity-32bit-Automizer_Taipan+AI_EQ_imprecise.epf_AutomizerC.xml/Csv-VPDomainBenchmark-3-2018-01-21_00-32-35-837.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/20020406-1_false-valid-memtrack.i_mempurity-32bit-Automizer_Taipan+AI_EQ_imprecise.epf_AutomizerC.xml/Csv-BenchmarkWithCounters-3-2018-01-21_00-32-35-837.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/20020406-1_false-valid-memtrack.i_mempurity-32bit-Automizer_Taipan+AI_EQ_imprecise.epf_AutomizerC.xml/Csv-VPDomainBenchmark-4-2018-01-21_00-32-35-837.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/20020406-1_false-valid-memtrack.i_mempurity-32bit-Automizer_Taipan+AI_EQ_imprecise.epf_AutomizerC.xml/Csv-BenchmarkWithCounters-4-2018-01-21_00-32-35-837.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/20020406-1_false-valid-memtrack.i_mempurity-32bit-Automizer_Taipan+AI_EQ_imprecise.epf_AutomizerC.xml/Csv-VPDomainBenchmark-5-2018-01-21_00-32-35-837.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/20020406-1_false-valid-memtrack.i_mempurity-32bit-Automizer_Taipan+AI_EQ_imprecise.epf_AutomizerC.xml/Csv-BenchmarkWithCounters-5-2018-01-21_00-32-35-837.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/20020406-1_false-valid-memtrack.i_mempurity-32bit-Automizer_Taipan+AI_EQ_imprecise.epf_AutomizerC.xml/Csv-VPDomainBenchmark-6-2018-01-21_00-32-35-837.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/20020406-1_false-valid-memtrack.i_mempurity-32bit-Automizer_Taipan+AI_EQ_imprecise.epf_AutomizerC.xml/Csv-BenchmarkWithCounters-6-2018-01-21_00-32-35-837.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/20020406-1_false-valid-memtrack.i_mempurity-32bit-Automizer_Taipan+AI_EQ_imprecise.epf_AutomizerC.xml/Csv-VPDomainBenchmark-7-2018-01-21_00-32-35-837.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/20020406-1_false-valid-memtrack.i_mempurity-32bit-Automizer_Taipan+AI_EQ_imprecise.epf_AutomizerC.xml/Csv-BenchmarkWithCounters-7-2018-01-21_00-32-35-837.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/20020406-1_false-valid-memtrack.i_mempurity-32bit-Automizer_Taipan+AI_EQ_imprecise.epf_AutomizerC.xml/Csv-VPDomainBenchmark-8-2018-01-21_00-32-35-837.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/20020406-1_false-valid-memtrack.i_mempurity-32bit-Automizer_Taipan+AI_EQ_imprecise.epf_AutomizerC.xml/Csv-BenchmarkWithCounters-8-2018-01-21_00-32-35-837.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/20020406-1_false-valid-memtrack.i_mempurity-32bit-Automizer_Taipan+AI_EQ_imprecise.epf_AutomizerC.xml/Csv-VPDomainBenchmark-9-2018-01-21_00-32-35-837.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/20020406-1_false-valid-memtrack.i_mempurity-32bit-Automizer_Taipan+AI_EQ_imprecise.epf_AutomizerC.xml/Csv-BenchmarkWithCounters-9-2018-01-21_00-32-35-837.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/20020406-1_false-valid-memtrack.i_mempurity-32bit-Automizer_Taipan+AI_EQ_imprecise.epf_AutomizerC.xml/Csv-TraceAbstractionBenchmarks-0-2018-01-21_00-32-35-837.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/20020406-1_false-valid-memtrack.i_mempurity-32bit-Automizer_Taipan+AI_EQ_imprecise.epf_AutomizerC.xml/Csv-TraceAbstractionBenchmarks-1-2018-01-21_00-32-35-837.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/20020406-1_false-valid-memtrack.i_mempurity-32bit-Automizer_Taipan+AI_EQ_imprecise.epf_AutomizerC.xml/Csv-TraceAbstractionBenchmarks-2-2018-01-21_00-32-35-837.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/20020406-1_false-valid-memtrack.i_mempurity-32bit-Automizer_Taipan+AI_EQ_imprecise.epf_AutomizerC.xml/Csv-TraceAbstractionBenchmarks-3-2018-01-21_00-32-35-837.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/20020406-1_false-valid-memtrack.i_mempurity-32bit-Automizer_Taipan+AI_EQ_imprecise.epf_AutomizerC.xml/Csv-TraceAbstractionBenchmarks-4-2018-01-21_00-32-35-837.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/20020406-1_false-valid-memtrack.i_mempurity-32bit-Automizer_Taipan+AI_EQ_imprecise.epf_AutomizerC.xml/Csv-TraceAbstractionBenchmarks-5-2018-01-21_00-32-35-837.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/20020406-1_false-valid-memtrack.i_mempurity-32bit-Automizer_Taipan+AI_EQ_imprecise.epf_AutomizerC.xml/Csv-TraceAbstractionBenchmarks-6-2018-01-21_00-32-35-837.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/20020406-1_false-valid-memtrack.i_mempurity-32bit-Automizer_Taipan+AI_EQ_imprecise.epf_AutomizerC.xml/Csv-TraceAbstractionBenchmarks-7-2018-01-21_00-32-35-837.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/20020406-1_false-valid-memtrack.i_mempurity-32bit-Automizer_Taipan+AI_EQ_imprecise.epf_AutomizerC.xml/Csv-TraceAbstractionBenchmarks-8-2018-01-21_00-32-35-837.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/20020406-1_false-valid-memtrack.i_mempurity-32bit-Automizer_Taipan+AI_EQ_imprecise.epf_AutomizerC.xml/Csv-TraceAbstractionBenchmarks-9-2018-01-21_00-32-35-837.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/20020406-1_false-valid-memtrack.i_mempurity-32bit-Automizer_Taipan+AI_EQ_imprecise.epf_AutomizerC.xml/Csv-TraceAbstractionBenchmarks-10-2018-01-21_00-32-35-837.csv Received shutdown request...