java -Xmx6000000000 -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data ./data --generate-csv --csv-dir ../../../releaseScripts/default/UAutomizer-linux/csv -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/ai/eq-bench/svcomp-DerefFreeMemtrack-32bit-Automizer_Taipan+AI_EQ_precise.epf -i ../../../trunk/examples/svcomp/memsafety/lockfree-3.3_false-valid-memtrack.i -------------------------------------------------------------------------------- This is Ultimate 0.1.23-6b94a2f [2018-01-24 23:31:06,455 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-01-24 23:31:06,458 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-01-24 23:31:06,472 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-01-24 23:31:06,473 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-01-24 23:31:06,474 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-01-24 23:31:06,475 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-01-24 23:31:06,476 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-01-24 23:31:06,479 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-01-24 23:31:06,480 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-01-24 23:31:06,480 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-01-24 23:31:06,481 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-01-24 23:31:06,482 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-01-24 23:31:06,483 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-01-24 23:31:06,484 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-01-24 23:31:06,486 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-01-24 23:31:06,488 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-01-24 23:31:06,490 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-01-24 23:31:06,492 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-01-24 23:31:06,493 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-01-24 23:31:06,495 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-01-24 23:31:06,500 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-01-24 23:31:06,501 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-01-24 23:31:06,501 INFO L98 SettingsManager]: Beginning loading settings from /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/ai/eq-bench/svcomp-DerefFreeMemtrack-32bit-Automizer_Taipan+AI_EQ_precise.epf [2018-01-24 23:31:06,509 INFO L110 SettingsManager]: Loading preferences was successful [2018-01-24 23:31:06,509 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-01-24 23:31:06,510 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-01-24 23:31:06,510 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-01-24 23:31:06,510 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-01-24 23:31:06,511 INFO L133 SettingsManager]: * Weq Fattening=true [2018-01-24 23:31:06,511 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=VPDomain [2018-01-24 23:31:06,511 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-01-24 23:31:06,511 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-01-24 23:31:06,511 INFO L133 SettingsManager]: * sizeof long=4 [2018-01-24 23:31:06,512 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-01-24 23:31:06,512 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-01-24 23:31:06,512 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-01-24 23:31:06,512 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-01-24 23:31:06,512 INFO L133 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2018-01-24 23:31:06,512 INFO L133 SettingsManager]: * Bitprecise bitfields=true [2018-01-24 23:31:06,512 INFO L133 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2018-01-24 23:31:06,512 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-01-24 23:31:06,513 INFO L133 SettingsManager]: * sizeof long double=12 [2018-01-24 23:31:06,513 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-01-24 23:31:06,513 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-01-24 23:31:06,513 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-01-24 23:31:06,513 INFO L133 SettingsManager]: * Add additional assume for each assert=false [2018-01-24 23:31:06,513 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-01-24 23:31:06,514 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-01-24 23:31:06,514 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-01-24 23:31:06,514 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-01-24 23:31:06,514 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-01-24 23:31:06,514 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-01-24 23:31:06,514 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-01-24 23:31:06,515 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-01-24 23:31:06,515 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-01-24 23:31:06,515 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-01-24 23:31:06,515 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-01-24 23:31:06,516 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-01-24 23:31:06,516 INFO L133 SettingsManager]: * TransformationType=HEAP_SEPARATOR [2018-01-24 23:31:06,549 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-01-24 23:31:06,560 INFO L266 ainManager$Toolchain]: [Toolchain 1]: Parser(s) successfully initialized [2018-01-24 23:31:06,563 INFO L222 ainManager$Toolchain]: [Toolchain 1]: Toolchain data selected. [2018-01-24 23:31:06,564 INFO L271 PluginConnector]: Initializing CDTParser... [2018-01-24 23:31:06,564 INFO L276 PluginConnector]: CDTParser initialized [2018-01-24 23:31:06,565 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/memsafety/lockfree-3.3_false-valid-memtrack.i [2018-01-24 23:31:06,724 INFO L304 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-01-24 23:31:06,729 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-01-24 23:31:06,730 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-01-24 23:31:06,730 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-01-24 23:31:06,735 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-01-24 23:31:06,736 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.01 11:31:06" (1/1) ... [2018-01-24 23:31:06,738 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4a76578b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 11:31:06, skipping insertion in model container [2018-01-24 23:31:06,738 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.01 11:31:06" (1/1) ... [2018-01-24 23:31:06,756 INFO L153 Dispatcher]: Using SV-COMP mode [2018-01-24 23:31:06,797 INFO L153 Dispatcher]: Using SV-COMP mode [2018-01-24 23:31:06,914 INFO L450 PostProcessor]: Settings: Checked method=main [2018-01-24 23:31:06,940 INFO L450 PostProcessor]: Settings: Checked method=main [2018-01-24 23:31:06,948 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 11:31:06 WrapperNode [2018-01-24 23:31:06,948 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-01-24 23:31:06,948 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-01-24 23:31:06,948 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-01-24 23:31:06,949 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-01-24 23:31:06,961 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 11:31:06" (1/1) ... [2018-01-24 23:31:06,961 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 11:31:06" (1/1) ... [2018-01-24 23:31:06,970 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 11:31:06" (1/1) ... [2018-01-24 23:31:06,970 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 11:31:06" (1/1) ... [2018-01-24 23:31:06,976 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 11:31:06" (1/1) ... [2018-01-24 23:31:06,979 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 11:31:06" (1/1) ... [2018-01-24 23:31:06,981 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 11:31:06" (1/1) ... [2018-01-24 23:31:06,983 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-01-24 23:31:06,983 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-01-24 23:31:06,983 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-01-24 23:31:06,983 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-01-24 23:31:06,985 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 11:31:06" (1/1) ... No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-01-24 23:31:07,048 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-01-24 23:31:07,048 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-01-24 23:31:07,048 INFO L136 BoogieDeclarations]: Found implementation of procedure push [2018-01-24 23:31:07,049 INFO L136 BoogieDeclarations]: Found implementation of procedure pop [2018-01-24 23:31:07,049 INFO L136 BoogieDeclarations]: Found implementation of procedure main [2018-01-24 23:31:07,049 INFO L128 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2018-01-24 23:31:07,049 INFO L128 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2018-01-24 23:31:07,049 INFO L128 BoogieDeclarations]: Found specification of procedure write~int [2018-01-24 23:31:07,049 INFO L128 BoogieDeclarations]: Found specification of procedure read~int [2018-01-24 23:31:07,049 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.free [2018-01-24 23:31:07,050 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-01-24 23:31:07,050 INFO L128 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-01-24 23:31:07,050 INFO L128 BoogieDeclarations]: Found specification of procedure malloc [2018-01-24 23:31:07,050 INFO L128 BoogieDeclarations]: Found specification of procedure free [2018-01-24 23:31:07,050 INFO L128 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2018-01-24 23:31:07,050 INFO L128 BoogieDeclarations]: Found specification of procedure push [2018-01-24 23:31:07,051 INFO L128 BoogieDeclarations]: Found specification of procedure pop [2018-01-24 23:31:07,051 INFO L128 BoogieDeclarations]: Found specification of procedure main [2018-01-24 23:31:07,051 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-01-24 23:31:07,051 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-01-24 23:31:07,411 INFO L257 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-01-24 23:31:07,412 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.01 11:31:07 BoogieIcfgContainer [2018-01-24 23:31:07,412 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-01-24 23:31:07,413 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-01-24 23:31:07,414 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-01-24 23:31:07,416 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-01-24 23:31:07,416 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.01 11:31:06" (1/3) ... [2018-01-24 23:31:07,418 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@275a65a5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.01 11:31:07, skipping insertion in model container [2018-01-24 23:31:07,418 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 11:31:06" (2/3) ... [2018-01-24 23:31:07,418 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@275a65a5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.01 11:31:07, skipping insertion in model container [2018-01-24 23:31:07,418 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.01 11:31:07" (3/3) ... [2018-01-24 23:31:07,420 INFO L105 eAbstractionObserver]: Analyzing ICFG lockfree-3.3_false-valid-memtrack.i [2018-01-24 23:31:07,427 INFO L130 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-01-24 23:31:07,433 INFO L142 ceAbstractionStarter]: Appying trace abstraction to program that has 19 error locations. [2018-01-24 23:31:07,482 INFO L322 AbstractCegarLoop]: Interprodecural is true [2018-01-24 23:31:07,482 INFO L323 AbstractCegarLoop]: Hoare is true [2018-01-24 23:31:07,483 INFO L324 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-01-24 23:31:07,483 INFO L325 AbstractCegarLoop]: Backedges is TWOTRACK [2018-01-24 23:31:07,483 INFO L326 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-01-24 23:31:07,483 INFO L327 AbstractCegarLoop]: Difference is false [2018-01-24 23:31:07,483 INFO L328 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-01-24 23:31:07,483 INFO L333 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-01-24 23:31:07,484 INFO L87 2NestedWordAutomaton]: Mode: main mode - execution starts in main procedure [2018-01-24 23:31:07,505 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states. [2018-01-24 23:31:07,511 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2018-01-24 23:31:07,512 INFO L314 BasicCegarLoop]: Found error trace [2018-01-24 23:31:07,513 INFO L322 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-24 23:31:07,513 INFO L371 AbstractCegarLoop]: === Iteration 1 === [popErr2RequiresViolation, popErr5RequiresViolation, popErr4RequiresViolation, popErr3RequiresViolation, popErr0RequiresViolation, popErr1RequiresViolation, mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr0RequiresViolation, mainErr4EnsuresViolation, pushErr5RequiresViolation, pushErr3RequiresViolation, pushErr0RequiresViolation, pushErr1RequiresViolation, pushErr7RequiresViolation, pushErr6RequiresViolation, pushErr2RequiresViolation, pushErr4RequiresViolation]=== [2018-01-24 23:31:07,518 INFO L82 PathProgramCache]: Analyzing trace with hash 1799126466, now seen corresponding path program 1 times [2018-01-24 23:31:07,521 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-24 23:31:07,574 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 23:31:07,575 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-24 23:31:07,575 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 23:31:07,575 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-24 23:31:07,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-24 23:31:07,647 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-24 23:31:07,694 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-24 23:31:07,696 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-24 23:31:07,697 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-01-24 23:31:07,697 INFO L252 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-01-24 23:31:07,700 INFO L409 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-01-24 23:31:07,715 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-01-24 23:31:07,716 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-01-24 23:31:07,719 INFO L87 Difference]: Start difference. First operand 76 states. Second operand 2 states. [2018-01-24 23:31:07,830 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-24 23:31:07,831 INFO L93 Difference]: Finished difference Result 92 states and 112 transitions. [2018-01-24 23:31:07,831 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-01-24 23:31:07,833 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 9 [2018-01-24 23:31:07,833 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-24 23:31:07,844 INFO L225 Difference]: With dead ends: 92 [2018-01-24 23:31:07,845 INFO L226 Difference]: Without dead ends: 73 [2018-01-24 23:31:07,847 INFO L525 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-01-24 23:31:07,859 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73 states. [2018-01-24 23:31:07,876 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73 to 73. [2018-01-24 23:31:07,876 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 73 states. [2018-01-24 23:31:07,878 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 73 states and 90 transitions. [2018-01-24 23:31:07,879 INFO L78 Accepts]: Start accepts. Automaton has 73 states and 90 transitions. Word has length 9 [2018-01-24 23:31:07,879 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-24 23:31:07,879 INFO L432 AbstractCegarLoop]: Abstraction has 73 states and 90 transitions. [2018-01-24 23:31:07,879 INFO L433 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-01-24 23:31:07,880 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 90 transitions. [2018-01-24 23:31:07,880 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2018-01-24 23:31:07,880 INFO L314 BasicCegarLoop]: Found error trace [2018-01-24 23:31:07,880 INFO L322 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-24 23:31:07,880 INFO L371 AbstractCegarLoop]: === Iteration 2 === [popErr2RequiresViolation, popErr5RequiresViolation, popErr4RequiresViolation, popErr3RequiresViolation, popErr0RequiresViolation, popErr1RequiresViolation, mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr0RequiresViolation, mainErr4EnsuresViolation, pushErr5RequiresViolation, pushErr3RequiresViolation, pushErr0RequiresViolation, pushErr1RequiresViolation, pushErr7RequiresViolation, pushErr6RequiresViolation, pushErr2RequiresViolation, pushErr4RequiresViolation]=== [2018-01-24 23:31:07,881 INFO L82 PathProgramCache]: Analyzing trace with hash 1199640283, now seen corresponding path program 1 times [2018-01-24 23:31:07,881 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-24 23:31:07,882 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 23:31:07,882 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-24 23:31:07,882 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 23:31:07,882 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-24 23:31:07,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-24 23:31:07,908 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-24 23:31:07,949 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-24 23:31:07,949 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-24 23:31:07,949 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-01-24 23:31:07,949 INFO L252 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-01-24 23:31:07,951 INFO L409 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-01-24 23:31:07,951 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-01-24 23:31:07,951 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-01-24 23:31:07,952 INFO L87 Difference]: Start difference. First operand 73 states and 90 transitions. Second operand 3 states. [2018-01-24 23:31:07,977 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-24 23:31:07,977 INFO L93 Difference]: Finished difference Result 87 states and 105 transitions. [2018-01-24 23:31:07,978 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-01-24 23:31:07,978 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 12 [2018-01-24 23:31:07,978 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-24 23:31:07,980 INFO L225 Difference]: With dead ends: 87 [2018-01-24 23:31:07,980 INFO L226 Difference]: Without dead ends: 74 [2018-01-24 23:31:07,981 INFO L525 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-01-24 23:31:07,982 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74 states. [2018-01-24 23:31:07,988 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74 to 74. [2018-01-24 23:31:07,988 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 74 states. [2018-01-24 23:31:07,990 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 91 transitions. [2018-01-24 23:31:07,990 INFO L78 Accepts]: Start accepts. Automaton has 74 states and 91 transitions. Word has length 12 [2018-01-24 23:31:07,990 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-24 23:31:07,990 INFO L432 AbstractCegarLoop]: Abstraction has 74 states and 91 transitions. [2018-01-24 23:31:07,990 INFO L433 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-01-24 23:31:07,991 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 91 transitions. [2018-01-24 23:31:07,991 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2018-01-24 23:31:07,991 INFO L314 BasicCegarLoop]: Found error trace [2018-01-24 23:31:07,991 INFO L322 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-24 23:31:07,991 INFO L371 AbstractCegarLoop]: === Iteration 3 === [popErr2RequiresViolation, popErr5RequiresViolation, popErr4RequiresViolation, popErr3RequiresViolation, popErr0RequiresViolation, popErr1RequiresViolation, mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr0RequiresViolation, mainErr4EnsuresViolation, pushErr5RequiresViolation, pushErr3RequiresViolation, pushErr0RequiresViolation, pushErr1RequiresViolation, pushErr7RequiresViolation, pushErr6RequiresViolation, pushErr2RequiresViolation, pushErr4RequiresViolation]=== [2018-01-24 23:31:07,991 INFO L82 PathProgramCache]: Analyzing trace with hash 1201487325, now seen corresponding path program 1 times [2018-01-24 23:31:07,992 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-24 23:31:07,992 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 23:31:07,993 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-24 23:31:07,993 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 23:31:07,993 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-24 23:31:08,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-24 23:31:08,018 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-24 23:31:08,091 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-24 23:31:08,091 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-24 23:31:08,091 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-01-24 23:31:08,091 INFO L252 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-01-24 23:31:08,091 INFO L409 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-01-24 23:31:08,092 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-01-24 23:31:08,092 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-01-24 23:31:08,092 INFO L87 Difference]: Start difference. First operand 74 states and 91 transitions. Second operand 3 states. [2018-01-24 23:31:08,134 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-24 23:31:08,135 INFO L93 Difference]: Finished difference Result 145 states and 181 transitions. [2018-01-24 23:31:08,135 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-01-24 23:31:08,135 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 12 [2018-01-24 23:31:08,135 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-24 23:31:08,136 INFO L225 Difference]: With dead ends: 145 [2018-01-24 23:31:08,137 INFO L226 Difference]: Without dead ends: 132 [2018-01-24 23:31:08,137 INFO L525 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-01-24 23:31:08,137 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 132 states. [2018-01-24 23:31:08,147 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 132 to 114. [2018-01-24 23:31:08,147 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 114 states. [2018-01-24 23:31:08,149 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 114 states and 159 transitions. [2018-01-24 23:31:08,149 INFO L78 Accepts]: Start accepts. Automaton has 114 states and 159 transitions. Word has length 12 [2018-01-24 23:31:08,150 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-24 23:31:08,150 INFO L432 AbstractCegarLoop]: Abstraction has 114 states and 159 transitions. [2018-01-24 23:31:08,150 INFO L433 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-01-24 23:31:08,150 INFO L276 IsEmpty]: Start isEmpty. Operand 114 states and 159 transitions. [2018-01-24 23:31:08,150 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2018-01-24 23:31:08,150 INFO L314 BasicCegarLoop]: Found error trace [2018-01-24 23:31:08,150 INFO L322 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-24 23:31:08,151 INFO L371 AbstractCegarLoop]: === Iteration 4 === [popErr2RequiresViolation, popErr5RequiresViolation, popErr4RequiresViolation, popErr3RequiresViolation, popErr0RequiresViolation, popErr1RequiresViolation, mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr0RequiresViolation, mainErr4EnsuresViolation, pushErr5RequiresViolation, pushErr3RequiresViolation, pushErr0RequiresViolation, pushErr1RequiresViolation, pushErr7RequiresViolation, pushErr6RequiresViolation, pushErr2RequiresViolation, pushErr4RequiresViolation]=== [2018-01-24 23:31:08,151 INFO L82 PathProgramCache]: Analyzing trace with hash -1408600152, now seen corresponding path program 1 times [2018-01-24 23:31:08,151 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-24 23:31:08,152 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 23:31:08,152 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-24 23:31:08,152 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 23:31:08,152 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-24 23:31:08,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-24 23:31:08,171 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-24 23:31:08,209 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-24 23:31:08,209 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-24 23:31:08,209 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-01-24 23:31:08,209 INFO L252 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-01-24 23:31:08,210 INFO L409 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-01-24 23:31:08,210 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-01-24 23:31:08,210 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-01-24 23:31:08,211 INFO L87 Difference]: Start difference. First operand 114 states and 159 transitions. Second operand 3 states. [2018-01-24 23:31:08,281 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-24 23:31:08,281 INFO L93 Difference]: Finished difference Result 148 states and 206 transitions. [2018-01-24 23:31:08,281 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-01-24 23:31:08,281 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 13 [2018-01-24 23:31:08,282 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-24 23:31:08,283 INFO L225 Difference]: With dead ends: 148 [2018-01-24 23:31:08,283 INFO L226 Difference]: Without dead ends: 143 [2018-01-24 23:31:08,283 INFO L525 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-01-24 23:31:08,284 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 143 states. [2018-01-24 23:31:08,293 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 143 to 135. [2018-01-24 23:31:08,294 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 135 states. [2018-01-24 23:31:08,296 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 135 states to 135 states and 192 transitions. [2018-01-24 23:31:08,296 INFO L78 Accepts]: Start accepts. Automaton has 135 states and 192 transitions. Word has length 13 [2018-01-24 23:31:08,296 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-24 23:31:08,296 INFO L432 AbstractCegarLoop]: Abstraction has 135 states and 192 transitions. [2018-01-24 23:31:08,296 INFO L433 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-01-24 23:31:08,296 INFO L276 IsEmpty]: Start isEmpty. Operand 135 states and 192 transitions. [2018-01-24 23:31:08,297 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2018-01-24 23:31:08,297 INFO L314 BasicCegarLoop]: Found error trace [2018-01-24 23:31:08,297 INFO L322 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-24 23:31:08,297 INFO L371 AbstractCegarLoop]: === Iteration 5 === [popErr2RequiresViolation, popErr5RequiresViolation, popErr4RequiresViolation, popErr3RequiresViolation, popErr0RequiresViolation, popErr1RequiresViolation, mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr0RequiresViolation, mainErr4EnsuresViolation, pushErr5RequiresViolation, pushErr3RequiresViolation, pushErr0RequiresViolation, pushErr1RequiresViolation, pushErr7RequiresViolation, pushErr6RequiresViolation, pushErr2RequiresViolation, pushErr4RequiresViolation]=== [2018-01-24 23:31:08,298 INFO L82 PathProgramCache]: Analyzing trace with hash 1628464921, now seen corresponding path program 1 times [2018-01-24 23:31:08,298 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-24 23:31:08,298 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 23:31:08,298 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-24 23:31:08,299 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 23:31:08,299 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-24 23:31:08,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-24 23:31:08,314 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-24 23:31:08,359 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-24 23:31:08,359 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-24 23:31:08,359 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-01-24 23:31:08,359 INFO L252 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-01-24 23:31:08,360 INFO L409 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-01-24 23:31:08,360 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-01-24 23:31:08,360 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-01-24 23:31:08,360 INFO L87 Difference]: Start difference. First operand 135 states and 192 transitions. Second operand 5 states. [2018-01-24 23:31:08,498 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-24 23:31:08,498 INFO L93 Difference]: Finished difference Result 385 states and 558 transitions. [2018-01-24 23:31:08,498 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-01-24 23:31:08,498 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 15 [2018-01-24 23:31:08,499 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-24 23:31:08,501 INFO L225 Difference]: With dead ends: 385 [2018-01-24 23:31:08,502 INFO L226 Difference]: Without dead ends: 255 [2018-01-24 23:31:08,504 INFO L525 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-01-24 23:31:08,504 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 255 states. [2018-01-24 23:31:08,524 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 255 to 226. [2018-01-24 23:31:08,524 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 226 states. [2018-01-24 23:31:08,527 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 226 states to 226 states and 338 transitions. [2018-01-24 23:31:08,527 INFO L78 Accepts]: Start accepts. Automaton has 226 states and 338 transitions. Word has length 15 [2018-01-24 23:31:08,528 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-24 23:31:08,528 INFO L432 AbstractCegarLoop]: Abstraction has 226 states and 338 transitions. [2018-01-24 23:31:08,528 INFO L433 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-01-24 23:31:08,528 INFO L276 IsEmpty]: Start isEmpty. Operand 226 states and 338 transitions. [2018-01-24 23:31:08,528 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2018-01-24 23:31:08,528 INFO L314 BasicCegarLoop]: Found error trace [2018-01-24 23:31:08,528 INFO L322 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-24 23:31:08,529 INFO L371 AbstractCegarLoop]: === Iteration 6 === [popErr2RequiresViolation, popErr5RequiresViolation, popErr4RequiresViolation, popErr3RequiresViolation, popErr0RequiresViolation, popErr1RequiresViolation, mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr0RequiresViolation, mainErr4EnsuresViolation, pushErr5RequiresViolation, pushErr3RequiresViolation, pushErr0RequiresViolation, pushErr1RequiresViolation, pushErr7RequiresViolation, pushErr6RequiresViolation, pushErr2RequiresViolation, pushErr4RequiresViolation]=== [2018-01-24 23:31:08,529 INFO L82 PathProgramCache]: Analyzing trace with hash -1057474006, now seen corresponding path program 1 times [2018-01-24 23:31:08,529 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-24 23:31:08,530 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 23:31:08,530 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-24 23:31:08,530 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 23:31:08,530 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-24 23:31:08,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-24 23:31:08,543 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-24 23:31:08,582 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-24 23:31:08,583 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-24 23:31:08,583 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-01-24 23:31:08,583 INFO L252 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-01-24 23:31:08,583 INFO L409 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-01-24 23:31:08,584 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-01-24 23:31:08,584 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-01-24 23:31:08,584 INFO L87 Difference]: Start difference. First operand 226 states and 338 transitions. Second operand 4 states. [2018-01-24 23:31:08,735 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-24 23:31:08,735 INFO L93 Difference]: Finished difference Result 390 states and 581 transitions. [2018-01-24 23:31:08,736 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-01-24 23:31:08,736 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 16 [2018-01-24 23:31:08,736 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-24 23:31:08,739 INFO L225 Difference]: With dead ends: 390 [2018-01-24 23:31:08,739 INFO L226 Difference]: Without dead ends: 386 [2018-01-24 23:31:08,739 INFO L525 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-01-24 23:31:08,740 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 386 states. [2018-01-24 23:31:08,765 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 386 to 358. [2018-01-24 23:31:08,765 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 358 states. [2018-01-24 23:31:08,769 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 358 states to 358 states and 548 transitions. [2018-01-24 23:31:08,769 INFO L78 Accepts]: Start accepts. Automaton has 358 states and 548 transitions. Word has length 16 [2018-01-24 23:31:08,769 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-24 23:31:08,770 INFO L432 AbstractCegarLoop]: Abstraction has 358 states and 548 transitions. [2018-01-24 23:31:08,770 INFO L433 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-01-24 23:31:08,770 INFO L276 IsEmpty]: Start isEmpty. Operand 358 states and 548 transitions. [2018-01-24 23:31:08,771 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2018-01-24 23:31:08,771 INFO L314 BasicCegarLoop]: Found error trace [2018-01-24 23:31:08,771 INFO L322 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-24 23:31:08,771 INFO L371 AbstractCegarLoop]: === Iteration 7 === [popErr2RequiresViolation, popErr5RequiresViolation, popErr4RequiresViolation, popErr3RequiresViolation, popErr0RequiresViolation, popErr1RequiresViolation, mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr0RequiresViolation, mainErr4EnsuresViolation, pushErr5RequiresViolation, pushErr3RequiresViolation, pushErr0RequiresViolation, pushErr1RequiresViolation, pushErr7RequiresViolation, pushErr6RequiresViolation, pushErr2RequiresViolation, pushErr4RequiresViolation]=== [2018-01-24 23:31:08,771 INFO L82 PathProgramCache]: Analyzing trace with hash -1057474005, now seen corresponding path program 1 times [2018-01-24 23:31:08,772 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-24 23:31:08,773 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 23:31:08,773 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-24 23:31:08,773 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 23:31:08,773 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-24 23:31:08,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-24 23:31:08,789 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-24 23:31:08,878 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-24 23:31:08,878 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-24 23:31:08,878 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-01-24 23:31:08,878 INFO L252 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-01-24 23:31:08,883 INFO L409 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-01-24 23:31:08,884 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-01-24 23:31:08,884 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-01-24 23:31:08,884 INFO L87 Difference]: Start difference. First operand 358 states and 548 transitions. Second operand 4 states. [2018-01-24 23:31:09,025 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-24 23:31:09,025 INFO L93 Difference]: Finished difference Result 489 states and 728 transitions. [2018-01-24 23:31:09,057 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-01-24 23:31:09,057 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 16 [2018-01-24 23:31:09,057 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-24 23:31:09,061 INFO L225 Difference]: With dead ends: 489 [2018-01-24 23:31:09,062 INFO L226 Difference]: Without dead ends: 485 [2018-01-24 23:31:09,063 INFO L525 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-01-24 23:31:09,063 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 485 states. [2018-01-24 23:31:09,095 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 485 to 460. [2018-01-24 23:31:09,095 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 460 states. [2018-01-24 23:31:09,099 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 460 states to 460 states and 696 transitions. [2018-01-24 23:31:09,099 INFO L78 Accepts]: Start accepts. Automaton has 460 states and 696 transitions. Word has length 16 [2018-01-24 23:31:09,100 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-24 23:31:09,100 INFO L432 AbstractCegarLoop]: Abstraction has 460 states and 696 transitions. [2018-01-24 23:31:09,100 INFO L433 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-01-24 23:31:09,100 INFO L276 IsEmpty]: Start isEmpty. Operand 460 states and 696 transitions. [2018-01-24 23:31:09,101 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2018-01-24 23:31:09,101 INFO L314 BasicCegarLoop]: Found error trace [2018-01-24 23:31:09,101 INFO L322 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-24 23:31:09,101 INFO L371 AbstractCegarLoop]: === Iteration 8 === [popErr2RequiresViolation, popErr5RequiresViolation, popErr4RequiresViolation, popErr3RequiresViolation, popErr0RequiresViolation, popErr1RequiresViolation, mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr0RequiresViolation, mainErr4EnsuresViolation, pushErr5RequiresViolation, pushErr3RequiresViolation, pushErr0RequiresViolation, pushErr1RequiresViolation, pushErr7RequiresViolation, pushErr6RequiresViolation, pushErr2RequiresViolation, pushErr4RequiresViolation]=== [2018-01-24 23:31:09,102 INFO L82 PathProgramCache]: Analyzing trace with hash 1708141764, now seen corresponding path program 1 times [2018-01-24 23:31:09,102 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-24 23:31:09,103 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 23:31:09,103 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-24 23:31:09,103 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 23:31:09,103 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-24 23:31:09,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-24 23:31:09,116 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-24 23:31:09,172 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-24 23:31:09,172 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-24 23:31:09,173 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-01-24 23:31:09,173 INFO L252 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-01-24 23:31:09,173 INFO L409 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-01-24 23:31:09,173 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-01-24 23:31:09,174 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-01-24 23:31:09,174 INFO L87 Difference]: Start difference. First operand 460 states and 696 transitions. Second operand 5 states. [2018-01-24 23:31:09,295 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-24 23:31:09,296 INFO L93 Difference]: Finished difference Result 1316 states and 1982 transitions. [2018-01-24 23:31:09,297 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-01-24 23:31:09,297 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 16 [2018-01-24 23:31:09,297 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-24 23:31:09,305 INFO L225 Difference]: With dead ends: 1316 [2018-01-24 23:31:09,305 INFO L226 Difference]: Without dead ends: 861 [2018-01-24 23:31:09,310 INFO L525 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-01-24 23:31:09,311 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 861 states. [2018-01-24 23:31:09,369 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 861 to 828. [2018-01-24 23:31:09,370 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 828 states. [2018-01-24 23:31:09,377 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 828 states to 828 states and 1196 transitions. [2018-01-24 23:31:09,378 INFO L78 Accepts]: Start accepts. Automaton has 828 states and 1196 transitions. Word has length 16 [2018-01-24 23:31:09,378 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-24 23:31:09,378 INFO L432 AbstractCegarLoop]: Abstraction has 828 states and 1196 transitions. [2018-01-24 23:31:09,378 INFO L433 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-01-24 23:31:09,378 INFO L276 IsEmpty]: Start isEmpty. Operand 828 states and 1196 transitions. [2018-01-24 23:31:09,379 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2018-01-24 23:31:09,379 INFO L314 BasicCegarLoop]: Found error trace [2018-01-24 23:31:09,379 INFO L322 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-24 23:31:09,379 INFO L371 AbstractCegarLoop]: === Iteration 9 === [popErr2RequiresViolation, popErr5RequiresViolation, popErr4RequiresViolation, popErr3RequiresViolation, popErr0RequiresViolation, popErr1RequiresViolation, mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr0RequiresViolation, mainErr4EnsuresViolation, pushErr5RequiresViolation, pushErr3RequiresViolation, pushErr0RequiresViolation, pushErr1RequiresViolation, pushErr7RequiresViolation, pushErr6RequiresViolation, pushErr2RequiresViolation, pushErr4RequiresViolation]=== [2018-01-24 23:31:09,380 INFO L82 PathProgramCache]: Analyzing trace with hash 750766986, now seen corresponding path program 1 times [2018-01-24 23:31:09,380 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-24 23:31:09,381 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 23:31:09,381 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-24 23:31:09,381 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 23:31:09,381 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-24 23:31:09,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-24 23:31:09,396 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-24 23:31:09,494 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 7 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-24 23:31:09,494 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-01-24 23:31:09,494 INFO L187 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-01-24 23:31:09,495 INFO L199 CegarAbsIntRunner]: Running AI on error trace of length 27 with the following transitions: [2018-01-24 23:31:09,496 INFO L201 CegarAbsIntRunner]: [2], [4], [7], [15], [21], [98], [101], [102], [112], [115], [117], [145], [146], [147], [153], [154], [155], [156], [157] [2018-01-24 23:31:09,542 INFO L147 AbstractInterpreter]: Using domain VPDomain [2018-01-24 23:31:09,542 INFO L101 FixpointEngine]: Starting fixpoint engine with domain VPDomain (maxUnwinding=3, maxParallelStates=2) [2018-01-24 23:31:09,774 INFO L262 AbstractInterpreter]: Error location(s) were unreachable [2018-01-24 23:31:09,776 INFO L268 AbstractInterpreter]: Visited 8 different actions 8 times. Never merged. Never widened. Never found a fixpoint. Largest state had 39 variables. [2018-01-24 23:31:09,789 INFO L395 sIntCurrentIteration]: Generating AbsInt predicates [2018-01-24 23:31:09,938 INFO L232 lantSequenceWeakener]: Weakened 10 states. On average, predicates are now at 82.63% of their original sizes. [2018-01-24 23:31:09,939 INFO L408 sIntCurrentIteration]: Unifying AI predicates [2018-01-24 23:31:09,960 INFO L419 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-01-24 23:31:09,961 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-01-24 23:31:09,961 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [6] total 10 [2018-01-24 23:31:09,961 INFO L252 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-01-24 23:31:09,962 INFO L409 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-01-24 23:31:09,962 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-01-24 23:31:09,962 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-01-24 23:31:09,962 INFO L87 Difference]: Start difference. First operand 828 states and 1196 transitions. Second operand 6 states. Received shutdown request... [2018-01-24 23:32:12,182 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-01-24 23:32:12,182 WARN L491 AbstractCegarLoop]: Verification canceled [2018-01-24 23:32:12,187 WARN L187 ceAbstractionStarter]: Timeout [2018-01-24 23:32:12,187 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.01 11:32:12 BoogieIcfgContainer [2018-01-24 23:32:12,187 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-01-24 23:32:12,188 INFO L168 Benchmark]: Toolchain (without parser) took 65463.67 ms. Allocated memory was 303.0 MB in the beginning and 2.0 GB in the end (delta: 1.6 GB). Free memory was 261.9 MB in the beginning and 1.6 GB in the end (delta: -1.4 GB). Peak memory consumption was 273.0 MB. Max. memory is 5.3 GB. [2018-01-24 23:32:12,188 INFO L168 Benchmark]: CDTParser took 0.12 ms. Allocated memory is still 303.0 MB. Free memory is still 267.9 MB. There was no memory consumed. Max. memory is 5.3 GB. [2018-01-24 23:32:12,188 INFO L168 Benchmark]: CACSL2BoogieTranslator took 218.20 ms. Allocated memory is still 303.0 MB. Free memory was 261.9 MB in the beginning and 249.8 MB in the end (delta: 12.1 MB). Peak memory consumption was 12.1 MB. Max. memory is 5.3 GB. [2018-01-24 23:32:12,189 INFO L168 Benchmark]: Boogie Preprocessor took 34.43 ms. Allocated memory is still 303.0 MB. Free memory was 249.8 MB in the beginning and 247.8 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 5.3 GB. [2018-01-24 23:32:12,189 INFO L168 Benchmark]: RCFGBuilder took 429.31 ms. Allocated memory is still 303.0 MB. Free memory was 247.8 MB in the beginning and 222.9 MB in the end (delta: 25.0 MB). Peak memory consumption was 25.0 MB. Max. memory is 5.3 GB. [2018-01-24 23:32:12,189 INFO L168 Benchmark]: TraceAbstraction took 64773.62 ms. Allocated memory was 303.0 MB in the beginning and 2.0 GB in the end (delta: 1.6 GB). Free memory was 222.9 MB in the beginning and 1.6 GB in the end (delta: -1.4 GB). Peak memory consumption was 233.9 MB. Max. memory is 5.3 GB. [2018-01-24 23:32:12,191 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 303.0 MB. Free memory is still 267.9 MB. There was no memory consumed. Max. memory is 5.3 GB. * CACSL2BoogieTranslator took 218.20 ms. Allocated memory is still 303.0 MB. Free memory was 261.9 MB in the beginning and 249.8 MB in the end (delta: 12.1 MB). Peak memory consumption was 12.1 MB. Max. memory is 5.3 GB. * Boogie Preprocessor took 34.43 ms. Allocated memory is still 303.0 MB. Free memory was 249.8 MB in the beginning and 247.8 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 5.3 GB. * RCFGBuilder took 429.31 ms. Allocated memory is still 303.0 MB. Free memory was 247.8 MB in the beginning and 222.9 MB in the end (delta: 25.0 MB). Peak memory consumption was 25.0 MB. Max. memory is 5.3 GB. * TraceAbstraction took 64773.62 ms. Allocated memory was 303.0 MB in the beginning and 2.0 GB in the end (delta: 1.6 GB). Free memory was 222.9 MB in the beginning and 1.6 GB in the end (delta: -1.4 GB). Peak memory consumption was 233.9 MB. Max. memory is 5.3 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2: - StatisticsResult: ArrayEqualityDomainStatistics #Locations : 7 LocStat_MAX_WEQGRAPH_SIZE : 1 LocStat_MAX_SIZEOF_WEQEDGELABEL : 1 LocStat_NO_SUPPORTING_EQUALITIES : 175 LocStat_NO_SUPPORTING_DISEQUALITIES : 0 LocStat_NO_DISJUNCTIONS : -14 LocStat_MAX_NO_DISJUNCTIONS : -1 #Transitions : 12 TransStat_MAX_WEQGRAPH_SIZE : 1 TransStat_MAX_SIZEOF_WEQEDGELABEL : 1 TransStat_NO_SUPPORTING_EQUALITIES : 94 TransStat_NO_SUPPORTING_DISEQUALITIES : 3 TransStat_NO_DISJUNCTIONS : 15 TransStat_MAX_NO_DISJUNCTIONS : 4 - StatisticsResult: EqConstraintFactoryStatistics CONJOIN_DISJUNCTIVE(MILLISECONDS) : 0.484407 RENAME_VARIABLES(MILLISECONDS) : 0.162894 UNFREEZE(MILLISECONDS) : 0.000000 CONJOIN(MILLISECONDS) : 0.434207 PROJECTAWAY(MILLISECONDS) : 0.071308 ADD_WEAK_EQUALITY(MILLISECONDS) : 3.391212 DISJOIN(MILLISECONDS) : 0.000000 RENAME_VARIABLES_DISJUNCTIVE(MILLISECONDS) : 0.210178 ADD_EQUALITY(MILLISECONDS) : 0.088235 DISJOIN_DISJUNCTIVE(MILLISECONDS) : 0.000000 ADD_DISEQUALITY(MILLISECONDS) : 0.013154 #CONJOIN_DISJUNCTIVE : 15 #RENAME_VARIABLES : 26 #UNFREEZE : 0 #CONJOIN : 106 #PROJECTAWAY : 25 #ADD_WEAK_EQUALITY : 1 #DISJOIN : 0 #RENAME_VARIABLES_DISJUNCTIVE : 23 #ADD_EQUALITY : 92 #DISJOIN_DISJUNCTIVE : 0 #ADD_DISEQUALITY : 3 * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 1]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line 681). Cancelled while BasicCegarLoop was constructing difference of abstraction (828states) and interpolant automaton (currently 4 states, 6 states before enhancement), while ReachableStatesComputation was computing reachable states (237 states constructedinput type IntersectNwa). - TimeoutResultAtElement [Line: 1]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line 682). Cancelled while BasicCegarLoop was constructing difference of abstraction (828states) and interpolant automaton (currently 4 states, 6 states before enhancement), while ReachableStatesComputation was computing reachable states (237 states constructedinput type IntersectNwa). - TimeoutResultAtElement [Line: 1]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line 682). Cancelled while BasicCegarLoop was constructing difference of abstraction (828states) and interpolant automaton (currently 4 states, 6 states before enhancement), while ReachableStatesComputation was computing reachable states (237 states constructedinput type IntersectNwa). - TimeoutResultAtElement [Line: 1]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line 681). Cancelled while BasicCegarLoop was constructing difference of abstraction (828states) and interpolant automaton (currently 4 states, 6 states before enhancement), while ReachableStatesComputation was computing reachable states (237 states constructedinput type IntersectNwa). - TimeoutResultAtElement [Line: 1]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line 672). Cancelled while BasicCegarLoop was constructing difference of abstraction (828states) and interpolant automaton (currently 4 states, 6 states before enhancement), while ReachableStatesComputation was computing reachable states (237 states constructedinput type IntersectNwa). - TimeoutResultAtElement [Line: 1]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line 672). Cancelled while BasicCegarLoop was constructing difference of abstraction (828states) and interpolant automaton (currently 4 states, 6 states before enhancement), while ReachableStatesComputation was computing reachable states (237 states constructedinput type IntersectNwa). - TimeoutResultAtElement [Line: 1]: Timeout (TraceAbstraction) Unable to prove that free always succeeds (line 698). Cancelled while BasicCegarLoop was constructing difference of abstraction (828states) and interpolant automaton (currently 4 states, 6 states before enhancement), while ReachableStatesComputation was computing reachable states (237 states constructedinput type IntersectNwa). - TimeoutResultAtElement [Line: 1]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line 697). Cancelled while BasicCegarLoop was constructing difference of abstraction (828states) and interpolant automaton (currently 4 states, 6 states before enhancement), while ReachableStatesComputation was computing reachable states (237 states constructedinput type IntersectNwa). - TimeoutResultAtElement [Line: 1]: Timeout (TraceAbstraction) Unable to prove that free always succeeds (line 698). Cancelled while BasicCegarLoop was constructing difference of abstraction (828states) and interpolant automaton (currently 4 states, 6 states before enhancement), while ReachableStatesComputation was computing reachable states (237 states constructedinput type IntersectNwa). - TimeoutResultAtElement [Line: 1]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line 697). Cancelled while BasicCegarLoop was constructing difference of abstraction (828states) and interpolant automaton (currently 4 states, 6 states before enhancement), while ReachableStatesComputation was computing reachable states (237 states constructedinput type IntersectNwa). - TimeoutResultAtElement [Line: 688]: Timeout (TraceAbstraction) Unable to prove that all allocated memory was freed (line 688). Cancelled while BasicCegarLoop was constructing difference of abstraction (828states) and interpolant automaton (currently 4 states, 6 states before enhancement), while ReachableStatesComputation was computing reachable states (237 states constructedinput type IntersectNwa). - TimeoutResultAtElement [Line: 1]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line 638). Cancelled while BasicCegarLoop was constructing difference of abstraction (828states) and interpolant automaton (currently 4 states, 6 states before enhancement), while ReachableStatesComputation was computing reachable states (237 states constructedinput type IntersectNwa). - TimeoutResultAtElement [Line: 1]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line 635). Cancelled while BasicCegarLoop was constructing difference of abstraction (828states) and interpolant automaton (currently 4 states, 6 states before enhancement), while ReachableStatesComputation was computing reachable states (237 states constructedinput type IntersectNwa). - TimeoutResultAtElement [Line: 1]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line 634). Cancelled while BasicCegarLoop was constructing difference of abstraction (828states) and interpolant automaton (currently 4 states, 6 states before enhancement), while ReachableStatesComputation was computing reachable states (237 states constructedinput type IntersectNwa). - TimeoutResultAtElement [Line: 1]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line 634). Cancelled while BasicCegarLoop was constructing difference of abstraction (828states) and interpolant automaton (currently 4 states, 6 states before enhancement), while ReachableStatesComputation was computing reachable states (237 states constructedinput type IntersectNwa). - TimeoutResultAtElement [Line: 1]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line 644). Cancelled while BasicCegarLoop was constructing difference of abstraction (828states) and interpolant automaton (currently 4 states, 6 states before enhancement), while ReachableStatesComputation was computing reachable states (237 states constructedinput type IntersectNwa). - TimeoutResultAtElement [Line: 1]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line 644). Cancelled while BasicCegarLoop was constructing difference of abstraction (828states) and interpolant automaton (currently 4 states, 6 states before enhancement), while ReachableStatesComputation was computing reachable states (237 states constructedinput type IntersectNwa). - TimeoutResultAtElement [Line: 1]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line 635). Cancelled while BasicCegarLoop was constructing difference of abstraction (828states) and interpolant automaton (currently 4 states, 6 states before enhancement), while ReachableStatesComputation was computing reachable states (237 states constructedinput type IntersectNwa). - TimeoutResultAtElement [Line: 1]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line 638). Cancelled while BasicCegarLoop was constructing difference of abstraction (828states) and interpolant automaton (currently 4 states, 6 states before enhancement), while ReachableStatesComputation was computing reachable states (237 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 76 locations, 19 error locations. TIMEOUT Result, 64.7s OverallTime, 9 OverallIterations, 2 TraceHistogramMax, 63.1s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 833 SDtfs, 420 SDslu, 1149 SDs, 0 SdLazy, 266 SolverSat, 50 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 62.3s Time, PredicateUnifierStatistics: 2 DeclaredPredicates, 61 GetRequests, 38 SyntacticMatches, 1 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=828occurred in iteration=8, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.2s AbstIntTime, 1 AbstIntIterations, 1 AbstIntStrong, 0.9787581699346404 AbsIntWeakeningRatio, 1.08 AbsIntAvgWeakeningVarsNumRemoved, 9.28 AbsIntAvgWeakenedConjuncts, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 8 MinimizatonAttempts, 141 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 135 NumberOfCodeBlocks, 135 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 126 ConstructedInterpolants, 0 QuantifiedInterpolants, 4489 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 9 InterpolantComputations, 8 PerfectInterpolantSequences, 7/8 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, REUSE_STATISTICS: No data available RESULT: Ultimate could not prove your program: Timeout Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/lockfree-3.3_false-valid-memtrack.i_svcomp-DerefFreeMemtrack-32bit-Automizer_Taipan+AI_EQ_precise.epf_AutomizerC.xml/Csv-Benchmark-0-2018-01-24_23-32-12-202.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/lockfree-3.3_false-valid-memtrack.i_svcomp-DerefFreeMemtrack-32bit-Automizer_Taipan+AI_EQ_precise.epf_AutomizerC.xml/Csv-VPDomainBenchmark-0-2018-01-24_23-32-12-202.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/lockfree-3.3_false-valid-memtrack.i_svcomp-DerefFreeMemtrack-32bit-Automizer_Taipan+AI_EQ_precise.epf_AutomizerC.xml/Csv-BenchmarkWithCounters-0-2018-01-24_23-32-12-202.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/lockfree-3.3_false-valid-memtrack.i_svcomp-DerefFreeMemtrack-32bit-Automizer_Taipan+AI_EQ_precise.epf_AutomizerC.xml/Csv-TraceAbstractionBenchmarks-0-2018-01-24_23-32-12-202.csv Completed graceful shutdown