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_preciseopt.epf -i ../../../trunk/examples/svcomp/memsafety-ext/tree_of_cslls_true-valid-memsafety.i -------------------------------------------------------------------------------- This is Ultimate 0.1.23-6b94a2f [2018-01-25 03:08:18,655 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-01-25 03:08:18,657 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-01-25 03:08:18,671 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-01-25 03:08:18,671 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-01-25 03:08:18,672 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-01-25 03:08:18,673 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-01-25 03:08:18,675 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-01-25 03:08:18,676 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-01-25 03:08:18,678 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-01-25 03:08:18,679 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-01-25 03:08:18,679 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-01-25 03:08:18,680 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-01-25 03:08:18,681 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-01-25 03:08:18,682 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-01-25 03:08:18,685 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-01-25 03:08:18,687 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-01-25 03:08:18,690 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-01-25 03:08:18,691 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-01-25 03:08:18,693 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-01-25 03:08:18,695 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-01-25 03:08:18,695 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-01-25 03:08:18,696 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-01-25 03:08:18,697 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-01-25 03:08:18,698 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-01-25 03:08:18,699 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-01-25 03:08:18,699 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-01-25 03:08:18,700 INFO L177 SettingsManager]: PEA to Boogie provides no preferences, ignoring... [2018-01-25 03:08:18,700 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-01-25 03:08:18,701 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-01-25 03:08:18,701 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-01-25 03:08:18,702 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_preciseopt.epf [2018-01-25 03:08:18,710 INFO L110 SettingsManager]: Loading preferences was successful [2018-01-25 03:08:18,710 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-01-25 03:08:18,711 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-01-25 03:08:18,711 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-01-25 03:08:18,711 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-01-25 03:08:18,711 INFO L133 SettingsManager]: * Weq Fattening=true [2018-01-25 03:08:18,712 INFO L133 SettingsManager]: * Flatten before fatten=true [2018-01-25 03:08:18,712 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=VPDomain [2018-01-25 03:08:18,712 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-01-25 03:08:18,712 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-01-25 03:08:18,712 INFO L133 SettingsManager]: * sizeof long=4 [2018-01-25 03:08:18,712 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-01-25 03:08:18,713 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-01-25 03:08:18,713 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-01-25 03:08:18,713 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-01-25 03:08:18,713 INFO L133 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2018-01-25 03:08:18,713 INFO L133 SettingsManager]: * Bitprecise bitfields=true [2018-01-25 03:08:18,713 INFO L133 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2018-01-25 03:08:18,713 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-01-25 03:08:18,714 INFO L133 SettingsManager]: * sizeof long double=12 [2018-01-25 03:08:18,714 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-01-25 03:08:18,714 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-01-25 03:08:18,714 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-01-25 03:08:18,714 INFO L133 SettingsManager]: * Add additional assume for each assert=false [2018-01-25 03:08:18,714 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-01-25 03:08:18,715 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-01-25 03:08:18,715 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-01-25 03:08:18,715 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-01-25 03:08:18,715 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-01-25 03:08:18,715 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-01-25 03:08:18,715 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-01-25 03:08:18,716 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-01-25 03:08:18,716 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-01-25 03:08:18,716 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-01-25 03:08:18,716 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-01-25 03:08:18,717 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-01-25 03:08:18,717 INFO L133 SettingsManager]: * TransformationType=HEAP_SEPARATOR [2018-01-25 03:08:18,751 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-01-25 03:08:18,762 INFO L266 ainManager$Toolchain]: [Toolchain 1]: Parser(s) successfully initialized [2018-01-25 03:08:18,766 INFO L222 ainManager$Toolchain]: [Toolchain 1]: Toolchain data selected. [2018-01-25 03:08:18,767 INFO L271 PluginConnector]: Initializing CDTParser... [2018-01-25 03:08:18,767 INFO L276 PluginConnector]: CDTParser initialized [2018-01-25 03:08:18,768 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/memsafety-ext/tree_of_cslls_true-valid-memsafety.i [2018-01-25 03:08:18,949 INFO L304 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-01-25 03:08:18,957 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-01-25 03:08:18,958 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-01-25 03:08:18,958 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-01-25 03:08:18,964 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-01-25 03:08:18,965 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.01 03:08:18" (1/1) ... [2018-01-25 03:08:18,967 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5fa8bd45 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.01 03:08:18, skipping insertion in model container [2018-01-25 03:08:18,968 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.01 03:08:18" (1/1) ... [2018-01-25 03:08:18,989 INFO L153 Dispatcher]: Using SV-COMP mode [2018-01-25 03:08:19,034 INFO L153 Dispatcher]: Using SV-COMP mode [2018-01-25 03:08:19,162 INFO L450 PostProcessor]: Settings: Checked method=main [2018-01-25 03:08:19,187 INFO L450 PostProcessor]: Settings: Checked method=main [2018-01-25 03:08:19,199 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.01 03:08:19 WrapperNode [2018-01-25 03:08:19,200 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-01-25 03:08:19,201 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-01-25 03:08:19,201 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-01-25 03:08:19,201 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-01-25 03:08:19,214 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.01 03:08:19" (1/1) ... [2018-01-25 03:08:19,214 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.01 03:08:19" (1/1) ... [2018-01-25 03:08:19,225 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.01 03:08:19" (1/1) ... [2018-01-25 03:08:19,225 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.01 03:08:19" (1/1) ... [2018-01-25 03:08:19,234 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.01 03:08:19" (1/1) ... [2018-01-25 03:08:19,239 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.01 03:08:19" (1/1) ... [2018-01-25 03:08:19,241 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.01 03:08:19" (1/1) ... [2018-01-25 03:08:19,243 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-01-25 03:08:19,243 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-01-25 03:08:19,243 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-01-25 03:08:19,244 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-01-25 03:08:19,244 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.01 03:08:19" (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 [2018-01-25 03:08:19,304 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-01-25 03:08:19,319 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-01-25 03:08:19,319 INFO L136 BoogieDeclarations]: Found implementation of procedure main [2018-01-25 03:08:19,319 INFO L128 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2018-01-25 03:08:19,320 INFO L128 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2018-01-25 03:08:19,320 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.free [2018-01-25 03:08:19,320 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-01-25 03:08:19,320 INFO L128 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-01-25 03:08:19,320 INFO L128 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2018-01-25 03:08:19,320 INFO L128 BoogieDeclarations]: Found specification of procedure malloc [2018-01-25 03:08:19,321 INFO L128 BoogieDeclarations]: Found specification of procedure free [2018-01-25 03:08:19,321 INFO L128 BoogieDeclarations]: Found specification of procedure main [2018-01-25 03:08:19,321 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-01-25 03:08:19,321 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-01-25 03:08:20,350 INFO L257 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-01-25 03:08:20,351 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.01 03:08:20 BoogieIcfgContainer [2018-01-25 03:08:20,351 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-01-25 03:08:20,352 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-01-25 03:08:20,352 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-01-25 03:08:20,354 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-01-25 03:08:20,355 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.01 03:08:18" (1/3) ... [2018-01-25 03:08:20,356 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7e8c656f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.01 03:08:20, skipping insertion in model container [2018-01-25 03:08:20,356 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.01 03:08:19" (2/3) ... [2018-01-25 03:08:20,356 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7e8c656f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.01 03:08:20, skipping insertion in model container [2018-01-25 03:08:20,356 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.01 03:08:20" (3/3) ... [2018-01-25 03:08:20,358 INFO L105 eAbstractionObserver]: Analyzing ICFG tree_of_cslls_true-valid-memsafety.i [2018-01-25 03:08:20,366 INFO L130 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-01-25 03:08:20,374 INFO L142 ceAbstractionStarter]: Appying trace abstraction to program that has 101 error locations. [2018-01-25 03:08:20,418 INFO L322 AbstractCegarLoop]: Interprodecural is true [2018-01-25 03:08:20,419 INFO L323 AbstractCegarLoop]: Hoare is true [2018-01-25 03:08:20,419 INFO L324 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-01-25 03:08:20,419 INFO L325 AbstractCegarLoop]: Backedges is TWOTRACK [2018-01-25 03:08:20,419 INFO L326 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-01-25 03:08:20,419 INFO L327 AbstractCegarLoop]: Difference is false [2018-01-25 03:08:20,419 INFO L328 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-01-25 03:08:20,419 INFO L333 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-01-25 03:08:20,420 INFO L87 2NestedWordAutomaton]: Mode: main mode - execution starts in main procedure [2018-01-25 03:08:20,444 INFO L276 IsEmpty]: Start isEmpty. Operand 220 states. [2018-01-25 03:08:20,450 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2018-01-25 03:08:20,450 INFO L314 BasicCegarLoop]: Found error trace [2018-01-25 03:08:20,451 INFO L322 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2018-01-25 03:08:20,451 INFO L371 AbstractCegarLoop]: === Iteration 1 === [mainErr69RequiresViolation, mainErr26RequiresViolation, mainErr66RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr82RequiresViolation, mainErr74RequiresViolation, mainErr31RequiresViolation, mainErr29RequiresViolation, mainErr58RequiresViolation, mainErr15RequiresViolation, mainErr12RequiresViolation, mainErr71RequiresViolation, mainErr85RequiresViolation, mainErr55RequiresViolation, mainErr42RequiresViolation, mainErr90RequiresViolation, mainErr63RequiresViolation, mainErr77RequiresViolation, mainErr44RequiresViolation, mainErr96RequiresViolation, mainErr10RequiresViolation, mainErr4RequiresViolation, mainErr50RequiresViolation, mainErr37RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr84RequiresViolation, mainErr61RequiresViolation, mainErr100EnsuresViolation, mainErr87RequiresViolation, mainErr21RequiresViolation, mainErr56RequiresViolation, mainErr79RequiresViolation, mainErr92RequiresViolation, mainErr48RequiresViolation, mainErr39RequiresViolation, mainErr16RequiresViolation, mainErr95RequiresViolation, mainErr52RequiresViolation, mainErr45RequiresViolation, mainErr22RequiresViolation, mainErr88RequiresViolation, mainErr93RequiresViolation, mainErr60RequiresViolation, mainErr9RequiresViolation, mainErr53RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr8RequiresViolation, mainErr86RequiresViolation, mainErr47RequiresViolation, mainErr14RequiresViolation, mainErr51RequiresViolation, mainErr94RequiresViolation, mainErr54RequiresViolation, mainErr38RequiresViolation, mainErr97RequiresViolation, mainErr0RequiresViolation, mainErr46RequiresViolation, mainErr89RequiresViolation, mainErr91RequiresViolation, mainErr3RequiresViolation, mainErr62RequiresViolation, mainErr49RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr65RequiresViolation, mainErr70RequiresViolation, mainErr17RequiresViolation, mainErr78RequiresViolation, mainErr30RequiresViolation, mainErr11RequiresViolation, mainErr57RequiresViolation, mainErr24RequiresViolation, mainErr76RequiresViolation, mainErr43RequiresViolation, mainErr83RequiresViolation, mainErr36RequiresViolation, mainErr59RequiresViolation, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr41RequiresViolation, mainErr99RequiresViolation, mainErr64RequiresViolation, mainErr72RequiresViolation, mainErr81RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr68RequiresViolation, mainErr75RequiresViolation, mainErr19RequiresViolation, mainErr98RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr80RequiresViolation, mainErr67RequiresViolation, mainErr34RequiresViolation, mainErr73RequiresViolation, mainErr40RequiresViolation]=== [2018-01-25 03:08:20,455 INFO L82 PathProgramCache]: Analyzing trace with hash -1603684078, now seen corresponding path program 1 times [2018-01-25 03:08:20,457 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-25 03:08:20,502 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-25 03:08:20,502 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-25 03:08:20,502 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-25 03:08:20,502 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-25 03:08:20,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-25 03:08:20,579 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-25 03:08:20,653 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-25 03:08:20,655 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-25 03:08:20,655 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-01-25 03:08:20,655 INFO L252 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-01-25 03:08:20,659 INFO L409 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-01-25 03:08:20,778 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-01-25 03:08:20,779 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-01-25 03:08:20,781 INFO L87 Difference]: Start difference. First operand 220 states. Second operand 4 states. [2018-01-25 03:08:21,395 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-25 03:08:21,395 INFO L93 Difference]: Finished difference Result 503 states and 561 transitions. [2018-01-25 03:08:21,396 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-01-25 03:08:21,397 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 8 [2018-01-25 03:08:21,397 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-25 03:08:21,411 INFO L225 Difference]: With dead ends: 503 [2018-01-25 03:08:21,411 INFO L226 Difference]: Without dead ends: 321 [2018-01-25 03:08:21,416 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 [2018-01-25 03:08:21,433 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 321 states. [2018-01-25 03:08:21,460 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 321 to 208. [2018-01-25 03:08:21,461 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 208 states. [2018-01-25 03:08:21,463 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 208 states to 208 states and 224 transitions. [2018-01-25 03:08:21,465 INFO L78 Accepts]: Start accepts. Automaton has 208 states and 224 transitions. Word has length 8 [2018-01-25 03:08:21,465 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-25 03:08:21,465 INFO L432 AbstractCegarLoop]: Abstraction has 208 states and 224 transitions. [2018-01-25 03:08:21,466 INFO L433 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-01-25 03:08:21,466 INFO L276 IsEmpty]: Start isEmpty. Operand 208 states and 224 transitions. [2018-01-25 03:08:21,466 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2018-01-25 03:08:21,466 INFO L314 BasicCegarLoop]: Found error trace [2018-01-25 03:08:21,466 INFO L322 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2018-01-25 03:08:21,467 INFO L371 AbstractCegarLoop]: === Iteration 2 === [mainErr69RequiresViolation, mainErr26RequiresViolation, mainErr66RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr82RequiresViolation, mainErr74RequiresViolation, mainErr31RequiresViolation, mainErr29RequiresViolation, mainErr58RequiresViolation, mainErr15RequiresViolation, mainErr12RequiresViolation, mainErr71RequiresViolation, mainErr85RequiresViolation, mainErr55RequiresViolation, mainErr42RequiresViolation, mainErr90RequiresViolation, mainErr63RequiresViolation, mainErr77RequiresViolation, mainErr44RequiresViolation, mainErr96RequiresViolation, mainErr10RequiresViolation, mainErr4RequiresViolation, mainErr50RequiresViolation, mainErr37RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr84RequiresViolation, mainErr61RequiresViolation, mainErr100EnsuresViolation, mainErr87RequiresViolation, mainErr21RequiresViolation, mainErr56RequiresViolation, mainErr79RequiresViolation, mainErr92RequiresViolation, mainErr48RequiresViolation, mainErr39RequiresViolation, mainErr16RequiresViolation, mainErr95RequiresViolation, mainErr52RequiresViolation, mainErr45RequiresViolation, mainErr22RequiresViolation, mainErr88RequiresViolation, mainErr93RequiresViolation, mainErr60RequiresViolation, mainErr9RequiresViolation, mainErr53RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr8RequiresViolation, mainErr86RequiresViolation, mainErr47RequiresViolation, mainErr14RequiresViolation, mainErr51RequiresViolation, mainErr94RequiresViolation, mainErr54RequiresViolation, mainErr38RequiresViolation, mainErr97RequiresViolation, mainErr0RequiresViolation, mainErr46RequiresViolation, mainErr89RequiresViolation, mainErr91RequiresViolation, mainErr3RequiresViolation, mainErr62RequiresViolation, mainErr49RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr65RequiresViolation, mainErr70RequiresViolation, mainErr17RequiresViolation, mainErr78RequiresViolation, mainErr30RequiresViolation, mainErr11RequiresViolation, mainErr57RequiresViolation, mainErr24RequiresViolation, mainErr76RequiresViolation, mainErr43RequiresViolation, mainErr83RequiresViolation, mainErr36RequiresViolation, mainErr59RequiresViolation, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr41RequiresViolation, mainErr99RequiresViolation, mainErr64RequiresViolation, mainErr72RequiresViolation, mainErr81RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr68RequiresViolation, mainErr75RequiresViolation, mainErr19RequiresViolation, mainErr98RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr80RequiresViolation, mainErr67RequiresViolation, mainErr34RequiresViolation, mainErr73RequiresViolation, mainErr40RequiresViolation]=== [2018-01-25 03:08:21,467 INFO L82 PathProgramCache]: Analyzing trace with hash -1603684077, now seen corresponding path program 1 times [2018-01-25 03:08:21,467 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-25 03:08:21,468 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-25 03:08:21,468 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-25 03:08:21,468 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-25 03:08:21,469 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-25 03:08:21,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-25 03:08:21,491 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-25 03:08:21,552 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-25 03:08:21,553 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-25 03:08:21,553 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-01-25 03:08:21,553 INFO L252 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-01-25 03:08:21,555 INFO L409 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-01-25 03:08:21,555 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-01-25 03:08:21,555 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-01-25 03:08:21,555 INFO L87 Difference]: Start difference. First operand 208 states and 224 transitions. Second operand 4 states. [2018-01-25 03:08:21,784 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-25 03:08:21,785 INFO L93 Difference]: Finished difference Result 208 states and 224 transitions. [2018-01-25 03:08:21,785 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-01-25 03:08:21,785 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 8 [2018-01-25 03:08:21,785 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-25 03:08:21,787 INFO L225 Difference]: With dead ends: 208 [2018-01-25 03:08:21,787 INFO L226 Difference]: Without dead ends: 206 [2018-01-25 03:08:21,788 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 [2018-01-25 03:08:21,788 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 206 states. [2018-01-25 03:08:21,797 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 206 to 206. [2018-01-25 03:08:21,798 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 206 states. [2018-01-25 03:08:21,799 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 206 states to 206 states and 222 transitions. [2018-01-25 03:08:21,799 INFO L78 Accepts]: Start accepts. Automaton has 206 states and 222 transitions. Word has length 8 [2018-01-25 03:08:21,800 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-25 03:08:21,800 INFO L432 AbstractCegarLoop]: Abstraction has 206 states and 222 transitions. [2018-01-25 03:08:21,800 INFO L433 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-01-25 03:08:21,800 INFO L276 IsEmpty]: Start isEmpty. Operand 206 states and 222 transitions. [2018-01-25 03:08:21,800 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2018-01-25 03:08:21,800 INFO L314 BasicCegarLoop]: Found error trace [2018-01-25 03:08:21,800 INFO L322 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-25 03:08:21,800 INFO L371 AbstractCegarLoop]: === Iteration 3 === [mainErr69RequiresViolation, mainErr26RequiresViolation, mainErr66RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr82RequiresViolation, mainErr74RequiresViolation, mainErr31RequiresViolation, mainErr29RequiresViolation, mainErr58RequiresViolation, mainErr15RequiresViolation, mainErr12RequiresViolation, mainErr71RequiresViolation, mainErr85RequiresViolation, mainErr55RequiresViolation, mainErr42RequiresViolation, mainErr90RequiresViolation, mainErr63RequiresViolation, mainErr77RequiresViolation, mainErr44RequiresViolation, mainErr96RequiresViolation, mainErr10RequiresViolation, mainErr4RequiresViolation, mainErr50RequiresViolation, mainErr37RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr84RequiresViolation, mainErr61RequiresViolation, mainErr100EnsuresViolation, mainErr87RequiresViolation, mainErr21RequiresViolation, mainErr56RequiresViolation, mainErr79RequiresViolation, mainErr92RequiresViolation, mainErr48RequiresViolation, mainErr39RequiresViolation, mainErr16RequiresViolation, mainErr95RequiresViolation, mainErr52RequiresViolation, mainErr45RequiresViolation, mainErr22RequiresViolation, mainErr88RequiresViolation, mainErr93RequiresViolation, mainErr60RequiresViolation, mainErr9RequiresViolation, mainErr53RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr8RequiresViolation, mainErr86RequiresViolation, mainErr47RequiresViolation, mainErr14RequiresViolation, mainErr51RequiresViolation, mainErr94RequiresViolation, mainErr54RequiresViolation, mainErr38RequiresViolation, mainErr97RequiresViolation, mainErr0RequiresViolation, mainErr46RequiresViolation, mainErr89RequiresViolation, mainErr91RequiresViolation, mainErr3RequiresViolation, mainErr62RequiresViolation, mainErr49RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr65RequiresViolation, mainErr70RequiresViolation, mainErr17RequiresViolation, mainErr78RequiresViolation, mainErr30RequiresViolation, mainErr11RequiresViolation, mainErr57RequiresViolation, mainErr24RequiresViolation, mainErr76RequiresViolation, mainErr43RequiresViolation, mainErr83RequiresViolation, mainErr36RequiresViolation, mainErr59RequiresViolation, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr41RequiresViolation, mainErr99RequiresViolation, mainErr64RequiresViolation, mainErr72RequiresViolation, mainErr81RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr68RequiresViolation, mainErr75RequiresViolation, mainErr19RequiresViolation, mainErr98RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr80RequiresViolation, mainErr67RequiresViolation, mainErr34RequiresViolation, mainErr73RequiresViolation, mainErr40RequiresViolation]=== [2018-01-25 03:08:21,801 INFO L82 PathProgramCache]: Analyzing trace with hash 1863813244, now seen corresponding path program 1 times [2018-01-25 03:08:21,801 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-25 03:08:21,802 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-25 03:08:21,802 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-25 03:08:21,802 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-25 03:08:21,802 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-25 03:08:21,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-25 03:08:21,821 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-25 03:08:21,884 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-25 03:08:21,885 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-25 03:08:21,885 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-01-25 03:08:21,885 INFO L252 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-01-25 03:08:21,885 INFO L409 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-01-25 03:08:21,885 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-01-25 03:08:21,885 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2018-01-25 03:08:21,886 INFO L87 Difference]: Start difference. First operand 206 states and 222 transitions. Second operand 5 states. [2018-01-25 03:08:22,494 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-25 03:08:22,494 INFO L93 Difference]: Finished difference Result 362 states and 390 transitions. [2018-01-25 03:08:22,495 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-01-25 03:08:22,495 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 11 [2018-01-25 03:08:22,495 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-25 03:08:22,497 INFO L225 Difference]: With dead ends: 362 [2018-01-25 03:08:22,497 INFO L226 Difference]: Without dead ends: 355 [2018-01-25 03:08:22,498 INFO L525 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2018-01-25 03:08:22,498 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 355 states. [2018-01-25 03:08:22,513 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 355 to 199. [2018-01-25 03:08:22,513 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 199 states. [2018-01-25 03:08:22,515 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 199 states to 199 states and 215 transitions. [2018-01-25 03:08:22,515 INFO L78 Accepts]: Start accepts. Automaton has 199 states and 215 transitions. Word has length 11 [2018-01-25 03:08:22,516 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-25 03:08:22,516 INFO L432 AbstractCegarLoop]: Abstraction has 199 states and 215 transitions. [2018-01-25 03:08:22,516 INFO L433 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-01-25 03:08:22,516 INFO L276 IsEmpty]: Start isEmpty. Operand 199 states and 215 transitions. [2018-01-25 03:08:22,517 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2018-01-25 03:08:22,517 INFO L314 BasicCegarLoop]: Found error trace [2018-01-25 03:08:22,517 INFO L322 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-25 03:08:22,517 INFO L371 AbstractCegarLoop]: === Iteration 4 === [mainErr69RequiresViolation, mainErr26RequiresViolation, mainErr66RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr82RequiresViolation, mainErr74RequiresViolation, mainErr31RequiresViolation, mainErr29RequiresViolation, mainErr58RequiresViolation, mainErr15RequiresViolation, mainErr12RequiresViolation, mainErr71RequiresViolation, mainErr85RequiresViolation, mainErr55RequiresViolation, mainErr42RequiresViolation, mainErr90RequiresViolation, mainErr63RequiresViolation, mainErr77RequiresViolation, mainErr44RequiresViolation, mainErr96RequiresViolation, mainErr10RequiresViolation, mainErr4RequiresViolation, mainErr50RequiresViolation, mainErr37RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr84RequiresViolation, mainErr61RequiresViolation, mainErr100EnsuresViolation, mainErr87RequiresViolation, mainErr21RequiresViolation, mainErr56RequiresViolation, mainErr79RequiresViolation, mainErr92RequiresViolation, mainErr48RequiresViolation, mainErr39RequiresViolation, mainErr16RequiresViolation, mainErr95RequiresViolation, mainErr52RequiresViolation, mainErr45RequiresViolation, mainErr22RequiresViolation, mainErr88RequiresViolation, mainErr93RequiresViolation, mainErr60RequiresViolation, mainErr9RequiresViolation, mainErr53RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr8RequiresViolation, mainErr86RequiresViolation, mainErr47RequiresViolation, mainErr14RequiresViolation, mainErr51RequiresViolation, mainErr94RequiresViolation, mainErr54RequiresViolation, mainErr38RequiresViolation, mainErr97RequiresViolation, mainErr0RequiresViolation, mainErr46RequiresViolation, mainErr89RequiresViolation, mainErr91RequiresViolation, mainErr3RequiresViolation, mainErr62RequiresViolation, mainErr49RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr65RequiresViolation, mainErr70RequiresViolation, mainErr17RequiresViolation, mainErr78RequiresViolation, mainErr30RequiresViolation, mainErr11RequiresViolation, mainErr57RequiresViolation, mainErr24RequiresViolation, mainErr76RequiresViolation, mainErr43RequiresViolation, mainErr83RequiresViolation, mainErr36RequiresViolation, mainErr59RequiresViolation, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr41RequiresViolation, mainErr99RequiresViolation, mainErr64RequiresViolation, mainErr72RequiresViolation, mainErr81RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr68RequiresViolation, mainErr75RequiresViolation, mainErr19RequiresViolation, mainErr98RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr80RequiresViolation, mainErr67RequiresViolation, mainErr34RequiresViolation, mainErr73RequiresViolation, mainErr40RequiresViolation]=== [2018-01-25 03:08:22,518 INFO L82 PathProgramCache]: Analyzing trace with hash -476893285, now seen corresponding path program 1 times [2018-01-25 03:08:22,518 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-25 03:08:22,519 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-25 03:08:22,519 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-25 03:08:22,519 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-25 03:08:22,519 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-25 03:08:22,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-25 03:08:22,537 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-25 03:08:22,581 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-25 03:08:22,582 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-25 03:08:22,582 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-01-25 03:08:22,582 INFO L252 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-01-25 03:08:22,582 INFO L409 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-01-25 03:08:22,583 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-01-25 03:08:22,583 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-01-25 03:08:22,583 INFO L87 Difference]: Start difference. First operand 199 states and 215 transitions. Second operand 5 states. [2018-01-25 03:08:22,880 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-25 03:08:22,880 INFO L93 Difference]: Finished difference Result 275 states and 297 transitions. [2018-01-25 03:08:22,880 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-01-25 03:08:22,880 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 14 [2018-01-25 03:08:22,881 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-25 03:08:22,882 INFO L225 Difference]: With dead ends: 275 [2018-01-25 03:08:22,882 INFO L226 Difference]: Without dead ends: 274 [2018-01-25 03:08:22,882 INFO L525 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2018-01-25 03:08:22,883 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 274 states. [2018-01-25 03:08:22,891 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 274 to 198. [2018-01-25 03:08:22,891 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 198 states. [2018-01-25 03:08:22,892 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 198 states to 198 states and 214 transitions. [2018-01-25 03:08:22,893 INFO L78 Accepts]: Start accepts. Automaton has 198 states and 214 transitions. Word has length 14 [2018-01-25 03:08:22,893 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-25 03:08:22,893 INFO L432 AbstractCegarLoop]: Abstraction has 198 states and 214 transitions. [2018-01-25 03:08:22,893 INFO L433 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-01-25 03:08:22,893 INFO L276 IsEmpty]: Start isEmpty. Operand 198 states and 214 transitions. [2018-01-25 03:08:22,894 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2018-01-25 03:08:22,894 INFO L314 BasicCegarLoop]: Found error trace [2018-01-25 03:08:22,894 INFO L322 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-25 03:08:22,894 INFO L371 AbstractCegarLoop]: === Iteration 5 === [mainErr69RequiresViolation, mainErr26RequiresViolation, mainErr66RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr82RequiresViolation, mainErr74RequiresViolation, mainErr31RequiresViolation, mainErr29RequiresViolation, mainErr58RequiresViolation, mainErr15RequiresViolation, mainErr12RequiresViolation, mainErr71RequiresViolation, mainErr85RequiresViolation, mainErr55RequiresViolation, mainErr42RequiresViolation, mainErr90RequiresViolation, mainErr63RequiresViolation, mainErr77RequiresViolation, mainErr44RequiresViolation, mainErr96RequiresViolation, mainErr10RequiresViolation, mainErr4RequiresViolation, mainErr50RequiresViolation, mainErr37RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr84RequiresViolation, mainErr61RequiresViolation, mainErr100EnsuresViolation, mainErr87RequiresViolation, mainErr21RequiresViolation, mainErr56RequiresViolation, mainErr79RequiresViolation, mainErr92RequiresViolation, mainErr48RequiresViolation, mainErr39RequiresViolation, mainErr16RequiresViolation, mainErr95RequiresViolation, mainErr52RequiresViolation, mainErr45RequiresViolation, mainErr22RequiresViolation, mainErr88RequiresViolation, mainErr93RequiresViolation, mainErr60RequiresViolation, mainErr9RequiresViolation, mainErr53RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr8RequiresViolation, mainErr86RequiresViolation, mainErr47RequiresViolation, mainErr14RequiresViolation, mainErr51RequiresViolation, mainErr94RequiresViolation, mainErr54RequiresViolation, mainErr38RequiresViolation, mainErr97RequiresViolation, mainErr0RequiresViolation, mainErr46RequiresViolation, mainErr89RequiresViolation, mainErr91RequiresViolation, mainErr3RequiresViolation, mainErr62RequiresViolation, mainErr49RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr65RequiresViolation, mainErr70RequiresViolation, mainErr17RequiresViolation, mainErr78RequiresViolation, mainErr30RequiresViolation, mainErr11RequiresViolation, mainErr57RequiresViolation, mainErr24RequiresViolation, mainErr76RequiresViolation, mainErr43RequiresViolation, mainErr83RequiresViolation, mainErr36RequiresViolation, mainErr59RequiresViolation, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr41RequiresViolation, mainErr99RequiresViolation, mainErr64RequiresViolation, mainErr72RequiresViolation, mainErr81RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr68RequiresViolation, mainErr75RequiresViolation, mainErr19RequiresViolation, mainErr98RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr80RequiresViolation, mainErr67RequiresViolation, mainErr34RequiresViolation, mainErr73RequiresViolation, mainErr40RequiresViolation]=== [2018-01-25 03:08:22,895 INFO L82 PathProgramCache]: Analyzing trace with hash -476893284, now seen corresponding path program 1 times [2018-01-25 03:08:22,895 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-25 03:08:22,896 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-25 03:08:22,896 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-25 03:08:22,896 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-25 03:08:22,896 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-25 03:08:22,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-25 03:08:22,908 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-25 03:08:22,970 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-25 03:08:22,970 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-25 03:08:22,971 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-01-25 03:08:22,971 INFO L252 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-01-25 03:08:22,971 INFO L409 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-01-25 03:08:22,971 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-01-25 03:08:22,971 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-01-25 03:08:22,971 INFO L87 Difference]: Start difference. First operand 198 states and 214 transitions. Second operand 5 states. [2018-01-25 03:08:23,712 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-25 03:08:23,712 INFO L93 Difference]: Finished difference Result 316 states and 346 transitions. [2018-01-25 03:08:23,713 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-01-25 03:08:23,713 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 14 [2018-01-25 03:08:23,713 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-25 03:08:23,715 INFO L225 Difference]: With dead ends: 316 [2018-01-25 03:08:23,715 INFO L226 Difference]: Without dead ends: 315 [2018-01-25 03:08:23,716 INFO L525 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2018-01-25 03:08:23,716 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 315 states. [2018-01-25 03:08:23,722 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 315 to 197. [2018-01-25 03:08:23,723 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 197 states. [2018-01-25 03:08:23,724 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 197 states to 197 states and 213 transitions. [2018-01-25 03:08:23,724 INFO L78 Accepts]: Start accepts. Automaton has 197 states and 213 transitions. Word has length 14 [2018-01-25 03:08:23,724 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-25 03:08:23,724 INFO L432 AbstractCegarLoop]: Abstraction has 197 states and 213 transitions. [2018-01-25 03:08:23,724 INFO L433 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-01-25 03:08:23,725 INFO L276 IsEmpty]: Start isEmpty. Operand 197 states and 213 transitions. [2018-01-25 03:08:23,725 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2018-01-25 03:08:23,725 INFO L314 BasicCegarLoop]: Found error trace [2018-01-25 03:08:23,726 INFO L322 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-25 03:08:23,726 INFO L371 AbstractCegarLoop]: === Iteration 6 === [mainErr69RequiresViolation, mainErr26RequiresViolation, mainErr66RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr82RequiresViolation, mainErr74RequiresViolation, mainErr31RequiresViolation, mainErr29RequiresViolation, mainErr58RequiresViolation, mainErr15RequiresViolation, mainErr12RequiresViolation, mainErr71RequiresViolation, mainErr85RequiresViolation, mainErr55RequiresViolation, mainErr42RequiresViolation, mainErr90RequiresViolation, mainErr63RequiresViolation, mainErr77RequiresViolation, mainErr44RequiresViolation, mainErr96RequiresViolation, mainErr10RequiresViolation, mainErr4RequiresViolation, mainErr50RequiresViolation, mainErr37RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr84RequiresViolation, mainErr61RequiresViolation, mainErr100EnsuresViolation, mainErr87RequiresViolation, mainErr21RequiresViolation, mainErr56RequiresViolation, mainErr79RequiresViolation, mainErr92RequiresViolation, mainErr48RequiresViolation, mainErr39RequiresViolation, mainErr16RequiresViolation, mainErr95RequiresViolation, mainErr52RequiresViolation, mainErr45RequiresViolation, mainErr22RequiresViolation, mainErr88RequiresViolation, mainErr93RequiresViolation, mainErr60RequiresViolation, mainErr9RequiresViolation, mainErr53RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr8RequiresViolation, mainErr86RequiresViolation, mainErr47RequiresViolation, mainErr14RequiresViolation, mainErr51RequiresViolation, mainErr94RequiresViolation, mainErr54RequiresViolation, mainErr38RequiresViolation, mainErr97RequiresViolation, mainErr0RequiresViolation, mainErr46RequiresViolation, mainErr89RequiresViolation, mainErr91RequiresViolation, mainErr3RequiresViolation, mainErr62RequiresViolation, mainErr49RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr65RequiresViolation, mainErr70RequiresViolation, mainErr17RequiresViolation, mainErr78RequiresViolation, mainErr30RequiresViolation, mainErr11RequiresViolation, mainErr57RequiresViolation, mainErr24RequiresViolation, mainErr76RequiresViolation, mainErr43RequiresViolation, mainErr83RequiresViolation, mainErr36RequiresViolation, mainErr59RequiresViolation, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr41RequiresViolation, mainErr99RequiresViolation, mainErr64RequiresViolation, mainErr72RequiresViolation, mainErr81RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr68RequiresViolation, mainErr75RequiresViolation, mainErr19RequiresViolation, mainErr98RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr80RequiresViolation, mainErr67RequiresViolation, mainErr34RequiresViolation, mainErr73RequiresViolation, mainErr40RequiresViolation]=== [2018-01-25 03:08:23,726 INFO L82 PathProgramCache]: Analyzing trace with hash 1521405160, now seen corresponding path program 1 times [2018-01-25 03:08:23,726 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-25 03:08:23,727 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-25 03:08:23,727 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-25 03:08:23,727 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-25 03:08:23,727 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-25 03:08:23,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-25 03:08:23,750 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-25 03:08:23,954 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-25 03:08:23,955 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-25 03:08:23,955 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-01-25 03:08:23,955 INFO L252 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-01-25 03:08:23,955 INFO L409 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-01-25 03:08:23,955 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-01-25 03:08:23,956 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2018-01-25 03:08:23,956 INFO L87 Difference]: Start difference. First operand 197 states and 213 transitions. Second operand 8 states. [2018-01-25 03:08:24,792 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-25 03:08:24,792 INFO L93 Difference]: Finished difference Result 370 states and 406 transitions. [2018-01-25 03:08:24,793 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-01-25 03:08:24,793 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 22 [2018-01-25 03:08:24,793 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-25 03:08:24,795 INFO L225 Difference]: With dead ends: 370 [2018-01-25 03:08:24,795 INFO L226 Difference]: Without dead ends: 369 [2018-01-25 03:08:24,796 INFO L525 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=51, Invalid=105, Unknown=0, NotChecked=0, Total=156 [2018-01-25 03:08:24,796 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 369 states. [2018-01-25 03:08:24,804 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 369 to 204. [2018-01-25 03:08:24,804 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 204 states. [2018-01-25 03:08:24,805 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 204 states to 204 states and 222 transitions. [2018-01-25 03:08:24,806 INFO L78 Accepts]: Start accepts. Automaton has 204 states and 222 transitions. Word has length 22 [2018-01-25 03:08:24,806 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-25 03:08:24,806 INFO L432 AbstractCegarLoop]: Abstraction has 204 states and 222 transitions. [2018-01-25 03:08:24,806 INFO L433 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-01-25 03:08:24,806 INFO L276 IsEmpty]: Start isEmpty. Operand 204 states and 222 transitions. [2018-01-25 03:08:24,807 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2018-01-25 03:08:24,807 INFO L314 BasicCegarLoop]: Found error trace [2018-01-25 03:08:24,807 INFO L322 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-25 03:08:24,807 INFO L371 AbstractCegarLoop]: === Iteration 7 === [mainErr69RequiresViolation, mainErr26RequiresViolation, mainErr66RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr82RequiresViolation, mainErr74RequiresViolation, mainErr31RequiresViolation, mainErr29RequiresViolation, mainErr58RequiresViolation, mainErr15RequiresViolation, mainErr12RequiresViolation, mainErr71RequiresViolation, mainErr85RequiresViolation, mainErr55RequiresViolation, mainErr42RequiresViolation, mainErr90RequiresViolation, mainErr63RequiresViolation, mainErr77RequiresViolation, mainErr44RequiresViolation, mainErr96RequiresViolation, mainErr10RequiresViolation, mainErr4RequiresViolation, mainErr50RequiresViolation, mainErr37RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr84RequiresViolation, mainErr61RequiresViolation, mainErr100EnsuresViolation, mainErr87RequiresViolation, mainErr21RequiresViolation, mainErr56RequiresViolation, mainErr79RequiresViolation, mainErr92RequiresViolation, mainErr48RequiresViolation, mainErr39RequiresViolation, mainErr16RequiresViolation, mainErr95RequiresViolation, mainErr52RequiresViolation, mainErr45RequiresViolation, mainErr22RequiresViolation, mainErr88RequiresViolation, mainErr93RequiresViolation, mainErr60RequiresViolation, mainErr9RequiresViolation, mainErr53RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr8RequiresViolation, mainErr86RequiresViolation, mainErr47RequiresViolation, mainErr14RequiresViolation, mainErr51RequiresViolation, mainErr94RequiresViolation, mainErr54RequiresViolation, mainErr38RequiresViolation, mainErr97RequiresViolation, mainErr0RequiresViolation, mainErr46RequiresViolation, mainErr89RequiresViolation, mainErr91RequiresViolation, mainErr3RequiresViolation, mainErr62RequiresViolation, mainErr49RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr65RequiresViolation, mainErr70RequiresViolation, mainErr17RequiresViolation, mainErr78RequiresViolation, mainErr30RequiresViolation, mainErr11RequiresViolation, mainErr57RequiresViolation, mainErr24RequiresViolation, mainErr76RequiresViolation, mainErr43RequiresViolation, mainErr83RequiresViolation, mainErr36RequiresViolation, mainErr59RequiresViolation, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr41RequiresViolation, mainErr99RequiresViolation, mainErr64RequiresViolation, mainErr72RequiresViolation, mainErr81RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr68RequiresViolation, mainErr75RequiresViolation, mainErr19RequiresViolation, mainErr98RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr80RequiresViolation, mainErr67RequiresViolation, mainErr34RequiresViolation, mainErr73RequiresViolation, mainErr40RequiresViolation]=== [2018-01-25 03:08:24,807 INFO L82 PathProgramCache]: Analyzing trace with hash 1521405161, now seen corresponding path program 1 times [2018-01-25 03:08:24,807 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-25 03:08:24,808 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-25 03:08:24,808 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-25 03:08:24,808 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-25 03:08:24,808 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-25 03:08:24,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-25 03:08:24,828 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-25 03:08:25,037 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-25 03:08:25,037 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-25 03:08:25,037 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-01-25 03:08:25,038 INFO L252 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-01-25 03:08:25,038 INFO L409 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-01-25 03:08:25,038 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-01-25 03:08:25,038 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2018-01-25 03:08:25,039 INFO L87 Difference]: Start difference. First operand 204 states and 222 transitions. Second operand 8 states. [2018-01-25 03:08:25,895 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-25 03:08:25,896 INFO L93 Difference]: Finished difference Result 556 states and 612 transitions. [2018-01-25 03:08:25,896 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-01-25 03:08:25,896 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 22 [2018-01-25 03:08:25,897 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-25 03:08:25,900 INFO L225 Difference]: With dead ends: 556 [2018-01-25 03:08:25,900 INFO L226 Difference]: Without dead ends: 555 [2018-01-25 03:08:25,901 INFO L525 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=51, Invalid=105, Unknown=0, NotChecked=0, Total=156 [2018-01-25 03:08:25,902 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 555 states. [2018-01-25 03:08:25,909 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 555 to 204. [2018-01-25 03:08:25,909 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 204 states. [2018-01-25 03:08:25,910 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 204 states to 204 states and 221 transitions. [2018-01-25 03:08:25,910 INFO L78 Accepts]: Start accepts. Automaton has 204 states and 221 transitions. Word has length 22 [2018-01-25 03:08:25,911 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-25 03:08:25,911 INFO L432 AbstractCegarLoop]: Abstraction has 204 states and 221 transitions. [2018-01-25 03:08:25,911 INFO L433 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-01-25 03:08:25,911 INFO L276 IsEmpty]: Start isEmpty. Operand 204 states and 221 transitions. [2018-01-25 03:08:25,912 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2018-01-25 03:08:25,912 INFO L314 BasicCegarLoop]: Found error trace [2018-01-25 03:08:25,912 INFO L322 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-25 03:08:25,912 INFO L371 AbstractCegarLoop]: === Iteration 8 === [mainErr69RequiresViolation, mainErr26RequiresViolation, mainErr66RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr82RequiresViolation, mainErr74RequiresViolation, mainErr31RequiresViolation, mainErr29RequiresViolation, mainErr58RequiresViolation, mainErr15RequiresViolation, mainErr12RequiresViolation, mainErr71RequiresViolation, mainErr85RequiresViolation, mainErr55RequiresViolation, mainErr42RequiresViolation, mainErr90RequiresViolation, mainErr63RequiresViolation, mainErr77RequiresViolation, mainErr44RequiresViolation, mainErr96RequiresViolation, mainErr10RequiresViolation, mainErr4RequiresViolation, mainErr50RequiresViolation, mainErr37RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr84RequiresViolation, mainErr61RequiresViolation, mainErr100EnsuresViolation, mainErr87RequiresViolation, mainErr21RequiresViolation, mainErr56RequiresViolation, mainErr79RequiresViolation, mainErr92RequiresViolation, mainErr48RequiresViolation, mainErr39RequiresViolation, mainErr16RequiresViolation, mainErr95RequiresViolation, mainErr52RequiresViolation, mainErr45RequiresViolation, mainErr22RequiresViolation, mainErr88RequiresViolation, mainErr93RequiresViolation, mainErr60RequiresViolation, mainErr9RequiresViolation, mainErr53RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr8RequiresViolation, mainErr86RequiresViolation, mainErr47RequiresViolation, mainErr14RequiresViolation, mainErr51RequiresViolation, mainErr94RequiresViolation, mainErr54RequiresViolation, mainErr38RequiresViolation, mainErr97RequiresViolation, mainErr0RequiresViolation, mainErr46RequiresViolation, mainErr89RequiresViolation, mainErr91RequiresViolation, mainErr3RequiresViolation, mainErr62RequiresViolation, mainErr49RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr65RequiresViolation, mainErr70RequiresViolation, mainErr17RequiresViolation, mainErr78RequiresViolation, mainErr30RequiresViolation, mainErr11RequiresViolation, mainErr57RequiresViolation, mainErr24RequiresViolation, mainErr76RequiresViolation, mainErr43RequiresViolation, mainErr83RequiresViolation, mainErr36RequiresViolation, mainErr59RequiresViolation, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr41RequiresViolation, mainErr99RequiresViolation, mainErr64RequiresViolation, mainErr72RequiresViolation, mainErr81RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr68RequiresViolation, mainErr75RequiresViolation, mainErr19RequiresViolation, mainErr98RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr80RequiresViolation, mainErr67RequiresViolation, mainErr34RequiresViolation, mainErr73RequiresViolation, mainErr40RequiresViolation]=== [2018-01-25 03:08:25,912 INFO L82 PathProgramCache]: Analyzing trace with hash -115400475, now seen corresponding path program 1 times [2018-01-25 03:08:25,912 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-25 03:08:25,913 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-25 03:08:25,913 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-25 03:08:25,913 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-25 03:08:25,913 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-25 03:08:25,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-25 03:08:25,926 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-25 03:08:25,979 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-25 03:08:25,979 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-25 03:08:25,987 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-01-25 03:08:25,987 INFO L252 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-01-25 03:08:25,987 INFO L409 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-01-25 03:08:25,987 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-01-25 03:08:25,987 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-01-25 03:08:25,988 INFO L87 Difference]: Start difference. First operand 204 states and 221 transitions. Second operand 4 states. [2018-01-25 03:08:26,214 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-25 03:08:26,214 INFO L93 Difference]: Finished difference Result 291 states and 324 transitions. [2018-01-25 03:08:26,214 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-01-25 03:08:26,214 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 23 [2018-01-25 03:08:26,215 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-25 03:08:26,216 INFO L225 Difference]: With dead ends: 291 [2018-01-25 03:08:26,216 INFO L226 Difference]: Without dead ends: 273 [2018-01-25 03:08:26,216 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 [2018-01-25 03:08:26,217 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 273 states. [2018-01-25 03:08:26,222 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 273 to 197. [2018-01-25 03:08:26,223 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 197 states. [2018-01-25 03:08:26,224 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 197 states to 197 states and 218 transitions. [2018-01-25 03:08:26,224 INFO L78 Accepts]: Start accepts. Automaton has 197 states and 218 transitions. Word has length 23 [2018-01-25 03:08:26,224 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-25 03:08:26,224 INFO L432 AbstractCegarLoop]: Abstraction has 197 states and 218 transitions. [2018-01-25 03:08:26,224 INFO L433 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-01-25 03:08:26,224 INFO L276 IsEmpty]: Start isEmpty. Operand 197 states and 218 transitions. [2018-01-25 03:08:26,225 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2018-01-25 03:08:26,225 INFO L314 BasicCegarLoop]: Found error trace [2018-01-25 03:08:26,225 INFO L322 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-25 03:08:26,225 INFO L371 AbstractCegarLoop]: === Iteration 9 === [mainErr69RequiresViolation, mainErr26RequiresViolation, mainErr66RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr82RequiresViolation, mainErr74RequiresViolation, mainErr31RequiresViolation, mainErr29RequiresViolation, mainErr58RequiresViolation, mainErr15RequiresViolation, mainErr12RequiresViolation, mainErr71RequiresViolation, mainErr85RequiresViolation, mainErr55RequiresViolation, mainErr42RequiresViolation, mainErr90RequiresViolation, mainErr63RequiresViolation, mainErr77RequiresViolation, mainErr44RequiresViolation, mainErr96RequiresViolation, mainErr10RequiresViolation, mainErr4RequiresViolation, mainErr50RequiresViolation, mainErr37RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr84RequiresViolation, mainErr61RequiresViolation, mainErr100EnsuresViolation, mainErr87RequiresViolation, mainErr21RequiresViolation, mainErr56RequiresViolation, mainErr79RequiresViolation, mainErr92RequiresViolation, mainErr48RequiresViolation, mainErr39RequiresViolation, mainErr16RequiresViolation, mainErr95RequiresViolation, mainErr52RequiresViolation, mainErr45RequiresViolation, mainErr22RequiresViolation, mainErr88RequiresViolation, mainErr93RequiresViolation, mainErr60RequiresViolation, mainErr9RequiresViolation, mainErr53RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr8RequiresViolation, mainErr86RequiresViolation, mainErr47RequiresViolation, mainErr14RequiresViolation, mainErr51RequiresViolation, mainErr94RequiresViolation, mainErr54RequiresViolation, mainErr38RequiresViolation, mainErr97RequiresViolation, mainErr0RequiresViolation, mainErr46RequiresViolation, mainErr89RequiresViolation, mainErr91RequiresViolation, mainErr3RequiresViolation, mainErr62RequiresViolation, mainErr49RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr65RequiresViolation, mainErr70RequiresViolation, mainErr17RequiresViolation, mainErr78RequiresViolation, mainErr30RequiresViolation, mainErr11RequiresViolation, mainErr57RequiresViolation, mainErr24RequiresViolation, mainErr76RequiresViolation, mainErr43RequiresViolation, mainErr83RequiresViolation, mainErr36RequiresViolation, mainErr59RequiresViolation, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr41RequiresViolation, mainErr99RequiresViolation, mainErr64RequiresViolation, mainErr72RequiresViolation, mainErr81RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr68RequiresViolation, mainErr75RequiresViolation, mainErr19RequiresViolation, mainErr98RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr80RequiresViolation, mainErr67RequiresViolation, mainErr34RequiresViolation, mainErr73RequiresViolation, mainErr40RequiresViolation]=== [2018-01-25 03:08:26,225 INFO L82 PathProgramCache]: Analyzing trace with hash -115400474, now seen corresponding path program 1 times [2018-01-25 03:08:26,225 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-25 03:08:26,226 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-25 03:08:26,226 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-25 03:08:26,226 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-25 03:08:26,226 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-25 03:08:26,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-25 03:08:26,239 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-25 03:08:26,375 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-25 03:08:26,375 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-25 03:08:26,375 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-01-25 03:08:26,375 INFO L252 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-01-25 03:08:26,376 INFO L409 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-01-25 03:08:26,376 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-01-25 03:08:26,376 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2018-01-25 03:08:26,376 INFO L87 Difference]: Start difference. First operand 197 states and 218 transitions. Second operand 6 states. [2018-01-25 03:08:26,758 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-25 03:08:26,758 INFO L93 Difference]: Finished difference Result 483 states and 546 transitions. [2018-01-25 03:08:26,758 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-01-25 03:08:26,759 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 23 [2018-01-25 03:08:26,759 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-25 03:08:26,761 INFO L225 Difference]: With dead ends: 483 [2018-01-25 03:08:26,761 INFO L226 Difference]: Without dead ends: 464 [2018-01-25 03:08:26,762 INFO L525 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=55, Unknown=0, NotChecked=0, Total=90 [2018-01-25 03:08:26,762 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 464 states. [2018-01-25 03:08:26,778 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 464 to 346. [2018-01-25 03:08:26,778 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 346 states. [2018-01-25 03:08:26,782 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 346 states to 346 states and 473 transitions. [2018-01-25 03:08:26,783 INFO L78 Accepts]: Start accepts. Automaton has 346 states and 473 transitions. Word has length 23 [2018-01-25 03:08:26,783 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-25 03:08:26,783 INFO L432 AbstractCegarLoop]: Abstraction has 346 states and 473 transitions. [2018-01-25 03:08:26,783 INFO L433 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-01-25 03:08:26,783 INFO L276 IsEmpty]: Start isEmpty. Operand 346 states and 473 transitions. [2018-01-25 03:08:26,785 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2018-01-25 03:08:26,785 INFO L314 BasicCegarLoop]: Found error trace [2018-01-25 03:08:26,785 INFO L322 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-25 03:08:26,785 INFO L371 AbstractCegarLoop]: === Iteration 10 === [mainErr69RequiresViolation, mainErr26RequiresViolation, mainErr66RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr82RequiresViolation, mainErr74RequiresViolation, mainErr31RequiresViolation, mainErr29RequiresViolation, mainErr58RequiresViolation, mainErr15RequiresViolation, mainErr12RequiresViolation, mainErr71RequiresViolation, mainErr85RequiresViolation, mainErr55RequiresViolation, mainErr42RequiresViolation, mainErr90RequiresViolation, mainErr63RequiresViolation, mainErr77RequiresViolation, mainErr44RequiresViolation, mainErr96RequiresViolation, mainErr10RequiresViolation, mainErr4RequiresViolation, mainErr50RequiresViolation, mainErr37RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr84RequiresViolation, mainErr61RequiresViolation, mainErr100EnsuresViolation, mainErr87RequiresViolation, mainErr21RequiresViolation, mainErr56RequiresViolation, mainErr79RequiresViolation, mainErr92RequiresViolation, mainErr48RequiresViolation, mainErr39RequiresViolation, mainErr16RequiresViolation, mainErr95RequiresViolation, mainErr52RequiresViolation, mainErr45RequiresViolation, mainErr22RequiresViolation, mainErr88RequiresViolation, mainErr93RequiresViolation, mainErr60RequiresViolation, mainErr9RequiresViolation, mainErr53RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr8RequiresViolation, mainErr86RequiresViolation, mainErr47RequiresViolation, mainErr14RequiresViolation, mainErr51RequiresViolation, mainErr94RequiresViolation, mainErr54RequiresViolation, mainErr38RequiresViolation, mainErr97RequiresViolation, mainErr0RequiresViolation, mainErr46RequiresViolation, mainErr89RequiresViolation, mainErr91RequiresViolation, mainErr3RequiresViolation, mainErr62RequiresViolation, mainErr49RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr65RequiresViolation, mainErr70RequiresViolation, mainErr17RequiresViolation, mainErr78RequiresViolation, mainErr30RequiresViolation, mainErr11RequiresViolation, mainErr57RequiresViolation, mainErr24RequiresViolation, mainErr76RequiresViolation, mainErr43RequiresViolation, mainErr83RequiresViolation, mainErr36RequiresViolation, mainErr59RequiresViolation, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr41RequiresViolation, mainErr99RequiresViolation, mainErr64RequiresViolation, mainErr72RequiresViolation, mainErr81RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr68RequiresViolation, mainErr75RequiresViolation, mainErr19RequiresViolation, mainErr98RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr80RequiresViolation, mainErr67RequiresViolation, mainErr34RequiresViolation, mainErr73RequiresViolation, mainErr40RequiresViolation]=== [2018-01-25 03:08:26,786 INFO L82 PathProgramCache]: Analyzing trace with hash -81080279, now seen corresponding path program 1 times [2018-01-25 03:08:26,786 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-25 03:08:26,787 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-25 03:08:26,787 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-25 03:08:26,787 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-25 03:08:26,787 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-25 03:08:26,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-25 03:08:26,799 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-25 03:08:27,166 WARN L146 SmtUtils]: Spent 215ms on a formula simplification. DAG size of input: 13 DAG size of output 9 [2018-01-25 03:08:27,168 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-25 03:08:27,168 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-25 03:08:27,168 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-01-25 03:08:27,168 INFO L252 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-01-25 03:08:27,169 INFO L409 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-01-25 03:08:27,169 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-01-25 03:08:27,169 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-01-25 03:08:27,169 INFO L87 Difference]: Start difference. First operand 346 states and 473 transitions. Second operand 4 states. [2018-01-25 03:08:28,682 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-25 03:08:28,682 INFO L93 Difference]: Finished difference Result 702 states and 999 transitions. [2018-01-25 03:08:28,682 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-01-25 03:08:28,682 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 23 [2018-01-25 03:08:28,683 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-25 03:08:28,685 INFO L225 Difference]: With dead ends: 702 [2018-01-25 03:08:28,685 INFO L226 Difference]: Without dead ends: 701 [2018-01-25 03:08:28,686 INFO L525 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-01-25 03:08:28,686 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 701 states. [2018-01-25 03:08:28,699 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 701 to 345. [2018-01-25 03:08:28,700 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 345 states. [2018-01-25 03:08:28,701 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 345 states to 345 states and 472 transitions. [2018-01-25 03:08:28,702 INFO L78 Accepts]: Start accepts. Automaton has 345 states and 472 transitions. Word has length 23 [2018-01-25 03:08:28,702 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-25 03:08:28,702 INFO L432 AbstractCegarLoop]: Abstraction has 345 states and 472 transitions. [2018-01-25 03:08:28,702 INFO L433 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-01-25 03:08:28,702 INFO L276 IsEmpty]: Start isEmpty. Operand 345 states and 472 transitions. [2018-01-25 03:08:28,703 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2018-01-25 03:08:28,703 INFO L314 BasicCegarLoop]: Found error trace [2018-01-25 03:08:28,703 INFO L322 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-25 03:08:28,704 INFO L371 AbstractCegarLoop]: === Iteration 11 === [mainErr69RequiresViolation, mainErr26RequiresViolation, mainErr66RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr82RequiresViolation, mainErr74RequiresViolation, mainErr31RequiresViolation, mainErr29RequiresViolation, mainErr58RequiresViolation, mainErr15RequiresViolation, mainErr12RequiresViolation, mainErr71RequiresViolation, mainErr85RequiresViolation, mainErr55RequiresViolation, mainErr42RequiresViolation, mainErr90RequiresViolation, mainErr63RequiresViolation, mainErr77RequiresViolation, mainErr44RequiresViolation, mainErr96RequiresViolation, mainErr10RequiresViolation, mainErr4RequiresViolation, mainErr50RequiresViolation, mainErr37RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr84RequiresViolation, mainErr61RequiresViolation, mainErr100EnsuresViolation, mainErr87RequiresViolation, mainErr21RequiresViolation, mainErr56RequiresViolation, mainErr79RequiresViolation, mainErr92RequiresViolation, mainErr48RequiresViolation, mainErr39RequiresViolation, mainErr16RequiresViolation, mainErr95RequiresViolation, mainErr52RequiresViolation, mainErr45RequiresViolation, mainErr22RequiresViolation, mainErr88RequiresViolation, mainErr93RequiresViolation, mainErr60RequiresViolation, mainErr9RequiresViolation, mainErr53RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr8RequiresViolation, mainErr86RequiresViolation, mainErr47RequiresViolation, mainErr14RequiresViolation, mainErr51RequiresViolation, mainErr94RequiresViolation, mainErr54RequiresViolation, mainErr38RequiresViolation, mainErr97RequiresViolation, mainErr0RequiresViolation, mainErr46RequiresViolation, mainErr89RequiresViolation, mainErr91RequiresViolation, mainErr3RequiresViolation, mainErr62RequiresViolation, mainErr49RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr65RequiresViolation, mainErr70RequiresViolation, mainErr17RequiresViolation, mainErr78RequiresViolation, mainErr30RequiresViolation, mainErr11RequiresViolation, mainErr57RequiresViolation, mainErr24RequiresViolation, mainErr76RequiresViolation, mainErr43RequiresViolation, mainErr83RequiresViolation, mainErr36RequiresViolation, mainErr59RequiresViolation, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr41RequiresViolation, mainErr99RequiresViolation, mainErr64RequiresViolation, mainErr72RequiresViolation, mainErr81RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr68RequiresViolation, mainErr75RequiresViolation, mainErr19RequiresViolation, mainErr98RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr80RequiresViolation, mainErr67RequiresViolation, mainErr34RequiresViolation, mainErr73RequiresViolation, mainErr40RequiresViolation]=== [2018-01-25 03:08:28,704 INFO L82 PathProgramCache]: Analyzing trace with hash -81080280, now seen corresponding path program 1 times [2018-01-25 03:08:28,704 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-25 03:08:28,705 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-25 03:08:28,705 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-25 03:08:28,705 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-25 03:08:28,705 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-25 03:08:28,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-25 03:08:28,716 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-25 03:08:28,770 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-25 03:08:28,770 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-25 03:08:28,770 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-01-25 03:08:28,770 INFO L252 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-01-25 03:08:28,770 INFO L409 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-01-25 03:08:28,770 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-01-25 03:08:28,771 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-01-25 03:08:28,771 INFO L87 Difference]: Start difference. First operand 345 states and 472 transitions. Second operand 4 states. [2018-01-25 03:08:29,374 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-25 03:08:29,374 INFO L93 Difference]: Finished difference Result 863 states and 1197 transitions. [2018-01-25 03:08:29,375 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-01-25 03:08:29,375 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 23 [2018-01-25 03:08:29,375 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-25 03:08:29,378 INFO L225 Difference]: With dead ends: 863 [2018-01-25 03:08:29,379 INFO L226 Difference]: Without dead ends: 861 [2018-01-25 03:08:29,379 INFO L525 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-01-25 03:08:29,380 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 861 states. [2018-01-25 03:08:29,403 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 861 to 343. [2018-01-25 03:08:29,404 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 343 states. [2018-01-25 03:08:29,406 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 343 states to 343 states and 467 transitions. [2018-01-25 03:08:29,407 INFO L78 Accepts]: Start accepts. Automaton has 343 states and 467 transitions. Word has length 23 [2018-01-25 03:08:29,407 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-25 03:08:29,407 INFO L432 AbstractCegarLoop]: Abstraction has 343 states and 467 transitions. [2018-01-25 03:08:29,407 INFO L433 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-01-25 03:08:29,407 INFO L276 IsEmpty]: Start isEmpty. Operand 343 states and 467 transitions. [2018-01-25 03:08:29,408 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2018-01-25 03:08:29,408 INFO L314 BasicCegarLoop]: Found error trace [2018-01-25 03:08:29,408 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] [2018-01-25 03:08:29,409 INFO L371 AbstractCegarLoop]: === Iteration 12 === [mainErr69RequiresViolation, mainErr26RequiresViolation, mainErr66RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr82RequiresViolation, mainErr74RequiresViolation, mainErr31RequiresViolation, mainErr29RequiresViolation, mainErr58RequiresViolation, mainErr15RequiresViolation, mainErr12RequiresViolation, mainErr71RequiresViolation, mainErr85RequiresViolation, mainErr55RequiresViolation, mainErr42RequiresViolation, mainErr90RequiresViolation, mainErr63RequiresViolation, mainErr77RequiresViolation, mainErr44RequiresViolation, mainErr96RequiresViolation, mainErr10RequiresViolation, mainErr4RequiresViolation, mainErr50RequiresViolation, mainErr37RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr84RequiresViolation, mainErr61RequiresViolation, mainErr100EnsuresViolation, mainErr87RequiresViolation, mainErr21RequiresViolation, mainErr56RequiresViolation, mainErr79RequiresViolation, mainErr92RequiresViolation, mainErr48RequiresViolation, mainErr39RequiresViolation, mainErr16RequiresViolation, mainErr95RequiresViolation, mainErr52RequiresViolation, mainErr45RequiresViolation, mainErr22RequiresViolation, mainErr88RequiresViolation, mainErr93RequiresViolation, mainErr60RequiresViolation, mainErr9RequiresViolation, mainErr53RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr8RequiresViolation, mainErr86RequiresViolation, mainErr47RequiresViolation, mainErr14RequiresViolation, mainErr51RequiresViolation, mainErr94RequiresViolation, mainErr54RequiresViolation, mainErr38RequiresViolation, mainErr97RequiresViolation, mainErr0RequiresViolation, mainErr46RequiresViolation, mainErr89RequiresViolation, mainErr91RequiresViolation, mainErr3RequiresViolation, mainErr62RequiresViolation, mainErr49RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr65RequiresViolation, mainErr70RequiresViolation, mainErr17RequiresViolation, mainErr78RequiresViolation, mainErr30RequiresViolation, mainErr11RequiresViolation, mainErr57RequiresViolation, mainErr24RequiresViolation, mainErr76RequiresViolation, mainErr43RequiresViolation, mainErr83RequiresViolation, mainErr36RequiresViolation, mainErr59RequiresViolation, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr41RequiresViolation, mainErr99RequiresViolation, mainErr64RequiresViolation, mainErr72RequiresViolation, mainErr81RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr68RequiresViolation, mainErr75RequiresViolation, mainErr19RequiresViolation, mainErr98RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr80RequiresViolation, mainErr67RequiresViolation, mainErr34RequiresViolation, mainErr73RequiresViolation, mainErr40RequiresViolation]=== [2018-01-25 03:08:29,409 INFO L82 PathProgramCache]: Analyzing trace with hash 771701702, now seen corresponding path program 1 times [2018-01-25 03:08:29,409 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-25 03:08:29,410 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-25 03:08:29,410 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-25 03:08:29,411 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-25 03:08:29,411 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-25 03:08:29,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-25 03:08:29,421 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-25 03:08:29,469 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-25 03:08:29,470 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-25 03:08:29,470 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-01-25 03:08:29,470 INFO L252 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-01-25 03:08:29,471 INFO L409 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-01-25 03:08:29,471 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-01-25 03:08:29,471 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-01-25 03:08:29,471 INFO L87 Difference]: Start difference. First operand 343 states and 467 transitions. Second operand 4 states. [2018-01-25 03:08:29,529 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-25 03:08:29,530 INFO L93 Difference]: Finished difference Result 416 states and 547 transitions. [2018-01-25 03:08:29,531 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-01-25 03:08:29,531 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 25 [2018-01-25 03:08:29,531 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-25 03:08:29,533 INFO L225 Difference]: With dead ends: 416 [2018-01-25 03:08:29,533 INFO L226 Difference]: Without dead ends: 413 [2018-01-25 03:08:29,544 INFO L525 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-01-25 03:08:29,545 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 413 states. [2018-01-25 03:08:29,561 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 413 to 382. [2018-01-25 03:08:29,562 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 382 states. [2018-01-25 03:08:29,564 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 382 states to 382 states and 541 transitions. [2018-01-25 03:08:29,564 INFO L78 Accepts]: Start accepts. Automaton has 382 states and 541 transitions. Word has length 25 [2018-01-25 03:08:29,564 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-25 03:08:29,564 INFO L432 AbstractCegarLoop]: Abstraction has 382 states and 541 transitions. [2018-01-25 03:08:29,564 INFO L433 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-01-25 03:08:29,565 INFO L276 IsEmpty]: Start isEmpty. Operand 382 states and 541 transitions. [2018-01-25 03:08:29,565 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2018-01-25 03:08:29,565 INFO L314 BasicCegarLoop]: Found error trace [2018-01-25 03:08:29,566 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] [2018-01-25 03:08:29,566 INFO L371 AbstractCegarLoop]: === Iteration 13 === [mainErr69RequiresViolation, mainErr26RequiresViolation, mainErr66RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr82RequiresViolation, mainErr74RequiresViolation, mainErr31RequiresViolation, mainErr29RequiresViolation, mainErr58RequiresViolation, mainErr15RequiresViolation, mainErr12RequiresViolation, mainErr71RequiresViolation, mainErr85RequiresViolation, mainErr55RequiresViolation, mainErr42RequiresViolation, mainErr90RequiresViolation, mainErr63RequiresViolation, mainErr77RequiresViolation, mainErr44RequiresViolation, mainErr96RequiresViolation, mainErr10RequiresViolation, mainErr4RequiresViolation, mainErr50RequiresViolation, mainErr37RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr84RequiresViolation, mainErr61RequiresViolation, mainErr100EnsuresViolation, mainErr87RequiresViolation, mainErr21RequiresViolation, mainErr56RequiresViolation, mainErr79RequiresViolation, mainErr92RequiresViolation, mainErr48RequiresViolation, mainErr39RequiresViolation, mainErr16RequiresViolation, mainErr95RequiresViolation, mainErr52RequiresViolation, mainErr45RequiresViolation, mainErr22RequiresViolation, mainErr88RequiresViolation, mainErr93RequiresViolation, mainErr60RequiresViolation, mainErr9RequiresViolation, mainErr53RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr8RequiresViolation, mainErr86RequiresViolation, mainErr47RequiresViolation, mainErr14RequiresViolation, mainErr51RequiresViolation, mainErr94RequiresViolation, mainErr54RequiresViolation, mainErr38RequiresViolation, mainErr97RequiresViolation, mainErr0RequiresViolation, mainErr46RequiresViolation, mainErr89RequiresViolation, mainErr91RequiresViolation, mainErr3RequiresViolation, mainErr62RequiresViolation, mainErr49RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr65RequiresViolation, mainErr70RequiresViolation, mainErr17RequiresViolation, mainErr78RequiresViolation, mainErr30RequiresViolation, mainErr11RequiresViolation, mainErr57RequiresViolation, mainErr24RequiresViolation, mainErr76RequiresViolation, mainErr43RequiresViolation, mainErr83RequiresViolation, mainErr36RequiresViolation, mainErr59RequiresViolation, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr41RequiresViolation, mainErr99RequiresViolation, mainErr64RequiresViolation, mainErr72RequiresViolation, mainErr81RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr68RequiresViolation, mainErr75RequiresViolation, mainErr19RequiresViolation, mainErr98RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr80RequiresViolation, mainErr67RequiresViolation, mainErr34RequiresViolation, mainErr73RequiresViolation, mainErr40RequiresViolation]=== [2018-01-25 03:08:29,566 INFO L82 PathProgramCache]: Analyzing trace with hash -1690982226, now seen corresponding path program 1 times [2018-01-25 03:08:29,566 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-25 03:08:29,567 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-25 03:08:29,567 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-25 03:08:29,575 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-25 03:08:29,576 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-25 03:08:29,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-25 03:08:29,597 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-25 03:08:30,151 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-25 03:08:30,151 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-25 03:08:30,151 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2018-01-25 03:08:30,152 INFO L252 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-01-25 03:08:30,152 INFO L409 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-01-25 03:08:30,152 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-01-25 03:08:30,152 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2018-01-25 03:08:30,152 INFO L87 Difference]: Start difference. First operand 382 states and 541 transitions. Second operand 9 states. [2018-01-25 03:08:31,846 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-25 03:08:31,846 INFO L93 Difference]: Finished difference Result 1252 states and 1783 transitions. [2018-01-25 03:08:31,846 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2018-01-25 03:08:31,846 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 26 [2018-01-25 03:08:31,847 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-25 03:08:31,851 INFO L225 Difference]: With dead ends: 1252 [2018-01-25 03:08:31,851 INFO L226 Difference]: Without dead ends: 1251 [2018-01-25 03:08:31,852 INFO L525 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=97, Invalid=209, Unknown=0, NotChecked=0, Total=306 [2018-01-25 03:08:31,852 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1251 states. [2018-01-25 03:08:31,867 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1251 to 381. [2018-01-25 03:08:31,867 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 381 states. [2018-01-25 03:08:31,868 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 381 states to 381 states and 540 transitions. [2018-01-25 03:08:31,868 INFO L78 Accepts]: Start accepts. Automaton has 381 states and 540 transitions. Word has length 26 [2018-01-25 03:08:31,869 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-25 03:08:31,869 INFO L432 AbstractCegarLoop]: Abstraction has 381 states and 540 transitions. [2018-01-25 03:08:31,869 INFO L433 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-01-25 03:08:31,869 INFO L276 IsEmpty]: Start isEmpty. Operand 381 states and 540 transitions. [2018-01-25 03:08:31,869 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2018-01-25 03:08:31,869 INFO L314 BasicCegarLoop]: Found error trace [2018-01-25 03:08:31,870 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] [2018-01-25 03:08:31,870 INFO L371 AbstractCegarLoop]: === Iteration 14 === [mainErr69RequiresViolation, mainErr26RequiresViolation, mainErr66RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr82RequiresViolation, mainErr74RequiresViolation, mainErr31RequiresViolation, mainErr29RequiresViolation, mainErr58RequiresViolation, mainErr15RequiresViolation, mainErr12RequiresViolation, mainErr71RequiresViolation, mainErr85RequiresViolation, mainErr55RequiresViolation, mainErr42RequiresViolation, mainErr90RequiresViolation, mainErr63RequiresViolation, mainErr77RequiresViolation, mainErr44RequiresViolation, mainErr96RequiresViolation, mainErr10RequiresViolation, mainErr4RequiresViolation, mainErr50RequiresViolation, mainErr37RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr84RequiresViolation, mainErr61RequiresViolation, mainErr100EnsuresViolation, mainErr87RequiresViolation, mainErr21RequiresViolation, mainErr56RequiresViolation, mainErr79RequiresViolation, mainErr92RequiresViolation, mainErr48RequiresViolation, mainErr39RequiresViolation, mainErr16RequiresViolation, mainErr95RequiresViolation, mainErr52RequiresViolation, mainErr45RequiresViolation, mainErr22RequiresViolation, mainErr88RequiresViolation, mainErr93RequiresViolation, mainErr60RequiresViolation, mainErr9RequiresViolation, mainErr53RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr8RequiresViolation, mainErr86RequiresViolation, mainErr47RequiresViolation, mainErr14RequiresViolation, mainErr51RequiresViolation, mainErr94RequiresViolation, mainErr54RequiresViolation, mainErr38RequiresViolation, mainErr97RequiresViolation, mainErr0RequiresViolation, mainErr46RequiresViolation, mainErr89RequiresViolation, mainErr91RequiresViolation, mainErr3RequiresViolation, mainErr62RequiresViolation, mainErr49RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr65RequiresViolation, mainErr70RequiresViolation, mainErr17RequiresViolation, mainErr78RequiresViolation, mainErr30RequiresViolation, mainErr11RequiresViolation, mainErr57RequiresViolation, mainErr24RequiresViolation, mainErr76RequiresViolation, mainErr43RequiresViolation, mainErr83RequiresViolation, mainErr36RequiresViolation, mainErr59RequiresViolation, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr41RequiresViolation, mainErr99RequiresViolation, mainErr64RequiresViolation, mainErr72RequiresViolation, mainErr81RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr68RequiresViolation, mainErr75RequiresViolation, mainErr19RequiresViolation, mainErr98RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr80RequiresViolation, mainErr67RequiresViolation, mainErr34RequiresViolation, mainErr73RequiresViolation, mainErr40RequiresViolation]=== [2018-01-25 03:08:31,870 INFO L82 PathProgramCache]: Analyzing trace with hash -1690982225, now seen corresponding path program 1 times [2018-01-25 03:08:31,870 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-25 03:08:31,871 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-25 03:08:31,871 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-25 03:08:31,871 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-25 03:08:31,871 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-25 03:08:31,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-25 03:08:31,886 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-25 03:08:31,978 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-25 03:08:31,978 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-25 03:08:31,979 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2018-01-25 03:08:31,979 INFO L252 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-01-25 03:08:31,979 INFO L409 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-01-25 03:08:31,979 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-01-25 03:08:31,979 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2018-01-25 03:08:31,980 INFO L87 Difference]: Start difference. First operand 381 states and 540 transitions. Second operand 9 states. [2018-01-25 03:08:32,767 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-25 03:08:32,768 INFO L93 Difference]: Finished difference Result 1251 states and 1782 transitions. [2018-01-25 03:08:32,768 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2018-01-25 03:08:32,768 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 26 [2018-01-25 03:08:32,769 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-25 03:08:32,774 INFO L225 Difference]: With dead ends: 1251 [2018-01-25 03:08:32,774 INFO L226 Difference]: Without dead ends: 1250 [2018-01-25 03:08:32,775 INFO L525 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=97, Invalid=209, Unknown=0, NotChecked=0, Total=306 [2018-01-25 03:08:32,776 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1250 states. [2018-01-25 03:08:32,803 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1250 to 380. [2018-01-25 03:08:32,803 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 380 states. [2018-01-25 03:08:32,805 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 380 states to 380 states and 539 transitions. [2018-01-25 03:08:32,805 INFO L78 Accepts]: Start accepts. Automaton has 380 states and 539 transitions. Word has length 26 [2018-01-25 03:08:32,806 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-25 03:08:32,806 INFO L432 AbstractCegarLoop]: Abstraction has 380 states and 539 transitions. [2018-01-25 03:08:32,806 INFO L433 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-01-25 03:08:32,806 INFO L276 IsEmpty]: Start isEmpty. Operand 380 states and 539 transitions. [2018-01-25 03:08:32,807 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2018-01-25 03:08:32,811 INFO L314 BasicCegarLoop]: Found error trace [2018-01-25 03:08:32,811 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, 1] [2018-01-25 03:08:32,811 INFO L371 AbstractCegarLoop]: === Iteration 15 === [mainErr69RequiresViolation, mainErr26RequiresViolation, mainErr66RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr82RequiresViolation, mainErr74RequiresViolation, mainErr31RequiresViolation, mainErr29RequiresViolation, mainErr58RequiresViolation, mainErr15RequiresViolation, mainErr12RequiresViolation, mainErr71RequiresViolation, mainErr85RequiresViolation, mainErr55RequiresViolation, mainErr42RequiresViolation, mainErr90RequiresViolation, mainErr63RequiresViolation, mainErr77RequiresViolation, mainErr44RequiresViolation, mainErr96RequiresViolation, mainErr10RequiresViolation, mainErr4RequiresViolation, mainErr50RequiresViolation, mainErr37RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr84RequiresViolation, mainErr61RequiresViolation, mainErr100EnsuresViolation, mainErr87RequiresViolation, mainErr21RequiresViolation, mainErr56RequiresViolation, mainErr79RequiresViolation, mainErr92RequiresViolation, mainErr48RequiresViolation, mainErr39RequiresViolation, mainErr16RequiresViolation, mainErr95RequiresViolation, mainErr52RequiresViolation, mainErr45RequiresViolation, mainErr22RequiresViolation, mainErr88RequiresViolation, mainErr93RequiresViolation, mainErr60RequiresViolation, mainErr9RequiresViolation, mainErr53RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr8RequiresViolation, mainErr86RequiresViolation, mainErr47RequiresViolation, mainErr14RequiresViolation, mainErr51RequiresViolation, mainErr94RequiresViolation, mainErr54RequiresViolation, mainErr38RequiresViolation, mainErr97RequiresViolation, mainErr0RequiresViolation, mainErr46RequiresViolation, mainErr89RequiresViolation, mainErr91RequiresViolation, mainErr3RequiresViolation, mainErr62RequiresViolation, mainErr49RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr65RequiresViolation, mainErr70RequiresViolation, mainErr17RequiresViolation, mainErr78RequiresViolation, mainErr30RequiresViolation, mainErr11RequiresViolation, mainErr57RequiresViolation, mainErr24RequiresViolation, mainErr76RequiresViolation, mainErr43RequiresViolation, mainErr83RequiresViolation, mainErr36RequiresViolation, mainErr59RequiresViolation, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr41RequiresViolation, mainErr99RequiresViolation, mainErr64RequiresViolation, mainErr72RequiresViolation, mainErr81RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr68RequiresViolation, mainErr75RequiresViolation, mainErr19RequiresViolation, mainErr98RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr80RequiresViolation, mainErr67RequiresViolation, mainErr34RequiresViolation, mainErr73RequiresViolation, mainErr40RequiresViolation]=== [2018-01-25 03:08:32,811 INFO L82 PathProgramCache]: Analyzing trace with hash -679017658, now seen corresponding path program 1 times [2018-01-25 03:08:32,811 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-25 03:08:32,813 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-25 03:08:32,813 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-25 03:08:32,813 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-25 03:08:32,813 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-25 03:08:32,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-25 03:08:32,831 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-25 03:08:32,872 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-25 03:08:32,872 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-25 03:08:32,872 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-01-25 03:08:32,873 INFO L252 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-01-25 03:08:32,873 INFO L409 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-01-25 03:08:32,873 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-01-25 03:08:32,873 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-01-25 03:08:32,874 INFO L87 Difference]: Start difference. First operand 380 states and 539 transitions. Second operand 3 states. [2018-01-25 03:08:32,920 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-25 03:08:32,920 INFO L93 Difference]: Finished difference Result 589 states and 875 transitions. [2018-01-25 03:08:32,930 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-01-25 03:08:32,930 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 30 [2018-01-25 03:08:32,930 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-25 03:08:32,932 INFO L225 Difference]: With dead ends: 589 [2018-01-25 03:08:32,932 INFO L226 Difference]: Without dead ends: 384 [2018-01-25 03:08:32,934 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 [2018-01-25 03:08:32,934 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 384 states. [2018-01-25 03:08:32,953 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 384 to 384. [2018-01-25 03:08:32,953 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 384 states. [2018-01-25 03:08:32,955 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 384 states to 384 states and 543 transitions. [2018-01-25 03:08:32,956 INFO L78 Accepts]: Start accepts. Automaton has 384 states and 543 transitions. Word has length 30 [2018-01-25 03:08:32,956 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-25 03:08:32,956 INFO L432 AbstractCegarLoop]: Abstraction has 384 states and 543 transitions. [2018-01-25 03:08:32,956 INFO L433 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-01-25 03:08:32,956 INFO L276 IsEmpty]: Start isEmpty. Operand 384 states and 543 transitions. [2018-01-25 03:08:32,957 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2018-01-25 03:08:32,957 INFO L314 BasicCegarLoop]: Found error trace [2018-01-25 03:08:32,958 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, 1] [2018-01-25 03:08:32,958 INFO L371 AbstractCegarLoop]: === Iteration 16 === [mainErr69RequiresViolation, mainErr26RequiresViolation, mainErr66RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr82RequiresViolation, mainErr74RequiresViolation, mainErr31RequiresViolation, mainErr29RequiresViolation, mainErr58RequiresViolation, mainErr15RequiresViolation, mainErr12RequiresViolation, mainErr71RequiresViolation, mainErr85RequiresViolation, mainErr55RequiresViolation, mainErr42RequiresViolation, mainErr90RequiresViolation, mainErr63RequiresViolation, mainErr77RequiresViolation, mainErr44RequiresViolation, mainErr96RequiresViolation, mainErr10RequiresViolation, mainErr4RequiresViolation, mainErr50RequiresViolation, mainErr37RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr84RequiresViolation, mainErr61RequiresViolation, mainErr100EnsuresViolation, mainErr87RequiresViolation, mainErr21RequiresViolation, mainErr56RequiresViolation, mainErr79RequiresViolation, mainErr92RequiresViolation, mainErr48RequiresViolation, mainErr39RequiresViolation, mainErr16RequiresViolation, mainErr95RequiresViolation, mainErr52RequiresViolation, mainErr45RequiresViolation, mainErr22RequiresViolation, mainErr88RequiresViolation, mainErr93RequiresViolation, mainErr60RequiresViolation, mainErr9RequiresViolation, mainErr53RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr8RequiresViolation, mainErr86RequiresViolation, mainErr47RequiresViolation, mainErr14RequiresViolation, mainErr51RequiresViolation, mainErr94RequiresViolation, mainErr54RequiresViolation, mainErr38RequiresViolation, mainErr97RequiresViolation, mainErr0RequiresViolation, mainErr46RequiresViolation, mainErr89RequiresViolation, mainErr91RequiresViolation, mainErr3RequiresViolation, mainErr62RequiresViolation, mainErr49RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr65RequiresViolation, mainErr70RequiresViolation, mainErr17RequiresViolation, mainErr78RequiresViolation, mainErr30RequiresViolation, mainErr11RequiresViolation, mainErr57RequiresViolation, mainErr24RequiresViolation, mainErr76RequiresViolation, mainErr43RequiresViolation, mainErr83RequiresViolation, mainErr36RequiresViolation, mainErr59RequiresViolation, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr41RequiresViolation, mainErr99RequiresViolation, mainErr64RequiresViolation, mainErr72RequiresViolation, mainErr81RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr68RequiresViolation, mainErr75RequiresViolation, mainErr19RequiresViolation, mainErr98RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr80RequiresViolation, mainErr67RequiresViolation, mainErr34RequiresViolation, mainErr73RequiresViolation, mainErr40RequiresViolation]=== [2018-01-25 03:08:32,958 INFO L82 PathProgramCache]: Analyzing trace with hash 1240786582, now seen corresponding path program 1 times [2018-01-25 03:08:32,958 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-25 03:08:32,959 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-25 03:08:32,959 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-25 03:08:32,959 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-25 03:08:32,959 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-25 03:08:32,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-25 03:08:32,976 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-25 03:08:33,079 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-25 03:08:33,080 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-25 03:08:33,080 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-01-25 03:08:33,080 INFO L252 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-01-25 03:08:33,080 INFO L409 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-01-25 03:08:33,080 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-01-25 03:08:33,081 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-01-25 03:08:33,081 INFO L87 Difference]: Start difference. First operand 384 states and 543 transitions. Second operand 3 states. [2018-01-25 03:08:33,115 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-25 03:08:33,115 INFO L93 Difference]: Finished difference Result 735 states and 1054 transitions. [2018-01-25 03:08:33,118 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-01-25 03:08:33,118 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 31 [2018-01-25 03:08:33,119 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-25 03:08:33,120 INFO L225 Difference]: With dead ends: 735 [2018-01-25 03:08:33,121 INFO L226 Difference]: Without dead ends: 387 [2018-01-25 03:08:33,124 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 [2018-01-25 03:08:33,124 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 387 states. [2018-01-25 03:08:33,142 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 387 to 387. [2018-01-25 03:08:33,142 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 387 states. [2018-01-25 03:08:33,144 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 387 states to 387 states and 546 transitions. [2018-01-25 03:08:33,144 INFO L78 Accepts]: Start accepts. Automaton has 387 states and 546 transitions. Word has length 31 [2018-01-25 03:08:33,144 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-25 03:08:33,144 INFO L432 AbstractCegarLoop]: Abstraction has 387 states and 546 transitions. [2018-01-25 03:08:33,144 INFO L433 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-01-25 03:08:33,145 INFO L276 IsEmpty]: Start isEmpty. Operand 387 states and 546 transitions. [2018-01-25 03:08:33,145 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2018-01-25 03:08:33,145 INFO L314 BasicCegarLoop]: Found error trace [2018-01-25 03:08:33,146 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, 1, 1, 1] [2018-01-25 03:08:33,146 INFO L371 AbstractCegarLoop]: === Iteration 17 === [mainErr69RequiresViolation, mainErr26RequiresViolation, mainErr66RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr82RequiresViolation, mainErr74RequiresViolation, mainErr31RequiresViolation, mainErr29RequiresViolation, mainErr58RequiresViolation, mainErr15RequiresViolation, mainErr12RequiresViolation, mainErr71RequiresViolation, mainErr85RequiresViolation, mainErr55RequiresViolation, mainErr42RequiresViolation, mainErr90RequiresViolation, mainErr63RequiresViolation, mainErr77RequiresViolation, mainErr44RequiresViolation, mainErr96RequiresViolation, mainErr10RequiresViolation, mainErr4RequiresViolation, mainErr50RequiresViolation, mainErr37RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr84RequiresViolation, mainErr61RequiresViolation, mainErr100EnsuresViolation, mainErr87RequiresViolation, mainErr21RequiresViolation, mainErr56RequiresViolation, mainErr79RequiresViolation, mainErr92RequiresViolation, mainErr48RequiresViolation, mainErr39RequiresViolation, mainErr16RequiresViolation, mainErr95RequiresViolation, mainErr52RequiresViolation, mainErr45RequiresViolation, mainErr22RequiresViolation, mainErr88RequiresViolation, mainErr93RequiresViolation, mainErr60RequiresViolation, mainErr9RequiresViolation, mainErr53RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr8RequiresViolation, mainErr86RequiresViolation, mainErr47RequiresViolation, mainErr14RequiresViolation, mainErr51RequiresViolation, mainErr94RequiresViolation, mainErr54RequiresViolation, mainErr38RequiresViolation, mainErr97RequiresViolation, mainErr0RequiresViolation, mainErr46RequiresViolation, mainErr89RequiresViolation, mainErr91RequiresViolation, mainErr3RequiresViolation, mainErr62RequiresViolation, mainErr49RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr65RequiresViolation, mainErr70RequiresViolation, mainErr17RequiresViolation, mainErr78RequiresViolation, mainErr30RequiresViolation, mainErr11RequiresViolation, mainErr57RequiresViolation, mainErr24RequiresViolation, mainErr76RequiresViolation, mainErr43RequiresViolation, mainErr83RequiresViolation, mainErr36RequiresViolation, mainErr59RequiresViolation, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr41RequiresViolation, mainErr99RequiresViolation, mainErr64RequiresViolation, mainErr72RequiresViolation, mainErr81RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr68RequiresViolation, mainErr75RequiresViolation, mainErr19RequiresViolation, mainErr98RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr80RequiresViolation, mainErr67RequiresViolation, mainErr34RequiresViolation, mainErr73RequiresViolation, mainErr40RequiresViolation]=== [2018-01-25 03:08:33,146 INFO L82 PathProgramCache]: Analyzing trace with hash 348971873, now seen corresponding path program 1 times [2018-01-25 03:08:33,146 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-25 03:08:33,147 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-25 03:08:33,147 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-25 03:08:33,147 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-25 03:08:33,147 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-25 03:08:33,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-25 03:08:33,162 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-25 03:08:33,296 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-25 03:08:33,297 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-25 03:08:33,297 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-01-25 03:08:33,297 INFO L252 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-01-25 03:08:33,297 INFO L409 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-01-25 03:08:33,298 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-01-25 03:08:33,298 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-01-25 03:08:33,298 INFO L87 Difference]: Start difference. First operand 387 states and 546 transitions. Second operand 3 states. [2018-01-25 03:08:33,505 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-25 03:08:33,505 INFO L93 Difference]: Finished difference Result 637 states and 909 transitions. [2018-01-25 03:08:33,507 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-01-25 03:08:33,508 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 32 [2018-01-25 03:08:33,508 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-25 03:08:33,510 INFO L225 Difference]: With dead ends: 637 [2018-01-25 03:08:33,510 INFO L226 Difference]: Without dead ends: 428 [2018-01-25 03:08:33,517 INFO L525 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-01-25 03:08:33,518 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 428 states. [2018-01-25 03:08:33,554 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 428 to 379. [2018-01-25 03:08:33,554 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 379 states. [2018-01-25 03:08:33,556 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 379 states to 379 states and 526 transitions. [2018-01-25 03:08:33,556 INFO L78 Accepts]: Start accepts. Automaton has 379 states and 526 transitions. Word has length 32 [2018-01-25 03:08:33,556 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-25 03:08:33,556 INFO L432 AbstractCegarLoop]: Abstraction has 379 states and 526 transitions. [2018-01-25 03:08:33,556 INFO L433 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-01-25 03:08:33,556 INFO L276 IsEmpty]: Start isEmpty. Operand 379 states and 526 transitions. [2018-01-25 03:08:33,563 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2018-01-25 03:08:33,563 INFO L314 BasicCegarLoop]: Found error trace [2018-01-25 03:08:33,563 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, 1, 1, 1] [2018-01-25 03:08:33,564 INFO L371 AbstractCegarLoop]: === Iteration 18 === [mainErr69RequiresViolation, mainErr26RequiresViolation, mainErr66RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr82RequiresViolation, mainErr74RequiresViolation, mainErr31RequiresViolation, mainErr29RequiresViolation, mainErr58RequiresViolation, mainErr15RequiresViolation, mainErr12RequiresViolation, mainErr71RequiresViolation, mainErr85RequiresViolation, mainErr55RequiresViolation, mainErr42RequiresViolation, mainErr90RequiresViolation, mainErr63RequiresViolation, mainErr77RequiresViolation, mainErr44RequiresViolation, mainErr96RequiresViolation, mainErr10RequiresViolation, mainErr4RequiresViolation, mainErr50RequiresViolation, mainErr37RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr84RequiresViolation, mainErr61RequiresViolation, mainErr100EnsuresViolation, mainErr87RequiresViolation, mainErr21RequiresViolation, mainErr56RequiresViolation, mainErr79RequiresViolation, mainErr92RequiresViolation, mainErr48RequiresViolation, mainErr39RequiresViolation, mainErr16RequiresViolation, mainErr95RequiresViolation, mainErr52RequiresViolation, mainErr45RequiresViolation, mainErr22RequiresViolation, mainErr88RequiresViolation, mainErr93RequiresViolation, mainErr60RequiresViolation, mainErr9RequiresViolation, mainErr53RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr8RequiresViolation, mainErr86RequiresViolation, mainErr47RequiresViolation, mainErr14RequiresViolation, mainErr51RequiresViolation, mainErr94RequiresViolation, mainErr54RequiresViolation, mainErr38RequiresViolation, mainErr97RequiresViolation, mainErr0RequiresViolation, mainErr46RequiresViolation, mainErr89RequiresViolation, mainErr91RequiresViolation, mainErr3RequiresViolation, mainErr62RequiresViolation, mainErr49RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr65RequiresViolation, mainErr70RequiresViolation, mainErr17RequiresViolation, mainErr78RequiresViolation, mainErr30RequiresViolation, mainErr11RequiresViolation, mainErr57RequiresViolation, mainErr24RequiresViolation, mainErr76RequiresViolation, mainErr43RequiresViolation, mainErr83RequiresViolation, mainErr36RequiresViolation, mainErr59RequiresViolation, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr41RequiresViolation, mainErr99RequiresViolation, mainErr64RequiresViolation, mainErr72RequiresViolation, mainErr81RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr68RequiresViolation, mainErr75RequiresViolation, mainErr19RequiresViolation, mainErr98RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr80RequiresViolation, mainErr67RequiresViolation, mainErr34RequiresViolation, mainErr73RequiresViolation, mainErr40RequiresViolation]=== [2018-01-25 03:08:33,564 INFO L82 PathProgramCache]: Analyzing trace with hash 1663635795, now seen corresponding path program 1 times [2018-01-25 03:08:33,564 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-25 03:08:33,566 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-25 03:08:33,566 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-25 03:08:33,566 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-25 03:08:33,567 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-25 03:08:33,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-25 03:08:33,583 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-25 03:08:33,816 WARN L146 SmtUtils]: Spent 143ms on a formula simplification. DAG size of input: 25 DAG size of output 21 [2018-01-25 03:08:34,035 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-25 03:08:34,035 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-25 03:08:34,035 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2018-01-25 03:08:34,035 INFO L252 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-01-25 03:08:34,036 INFO L409 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-01-25 03:08:34,036 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-01-25 03:08:34,036 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2018-01-25 03:08:34,036 INFO L87 Difference]: Start difference. First operand 379 states and 526 transitions. Second operand 10 states. [2018-01-25 03:08:35,058 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-25 03:08:35,058 INFO L93 Difference]: Finished difference Result 948 states and 1266 transitions. [2018-01-25 03:08:35,059 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2018-01-25 03:08:35,059 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 33 [2018-01-25 03:08:35,059 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-25 03:08:35,061 INFO L225 Difference]: With dead ends: 948 [2018-01-25 03:08:35,061 INFO L226 Difference]: Without dead ends: 605 [2018-01-25 03:08:35,061 INFO L525 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=83, Invalid=189, Unknown=0, NotChecked=0, Total=272 [2018-01-25 03:08:35,062 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 605 states. [2018-01-25 03:08:35,080 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 605 to 396. [2018-01-25 03:08:35,080 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 396 states. [2018-01-25 03:08:35,082 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 396 states to 396 states and 548 transitions. [2018-01-25 03:08:35,082 INFO L78 Accepts]: Start accepts. Automaton has 396 states and 548 transitions. Word has length 33 [2018-01-25 03:08:35,082 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-25 03:08:35,083 INFO L432 AbstractCegarLoop]: Abstraction has 396 states and 548 transitions. [2018-01-25 03:08:35,083 INFO L433 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-01-25 03:08:35,083 INFO L276 IsEmpty]: Start isEmpty. Operand 396 states and 548 transitions. [2018-01-25 03:08:35,083 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2018-01-25 03:08:35,083 INFO L314 BasicCegarLoop]: Found error trace [2018-01-25 03:08:35,084 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, 1, 1, 1, 1] [2018-01-25 03:08:35,084 INFO L371 AbstractCegarLoop]: === Iteration 19 === [mainErr69RequiresViolation, mainErr26RequiresViolation, mainErr66RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr82RequiresViolation, mainErr74RequiresViolation, mainErr31RequiresViolation, mainErr29RequiresViolation, mainErr58RequiresViolation, mainErr15RequiresViolation, mainErr12RequiresViolation, mainErr71RequiresViolation, mainErr85RequiresViolation, mainErr55RequiresViolation, mainErr42RequiresViolation, mainErr90RequiresViolation, mainErr63RequiresViolation, mainErr77RequiresViolation, mainErr44RequiresViolation, mainErr96RequiresViolation, mainErr10RequiresViolation, mainErr4RequiresViolation, mainErr50RequiresViolation, mainErr37RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr84RequiresViolation, mainErr61RequiresViolation, mainErr100EnsuresViolation, mainErr87RequiresViolation, mainErr21RequiresViolation, mainErr56RequiresViolation, mainErr79RequiresViolation, mainErr92RequiresViolation, mainErr48RequiresViolation, mainErr39RequiresViolation, mainErr16RequiresViolation, mainErr95RequiresViolation, mainErr52RequiresViolation, mainErr45RequiresViolation, mainErr22RequiresViolation, mainErr88RequiresViolation, mainErr93RequiresViolation, mainErr60RequiresViolation, mainErr9RequiresViolation, mainErr53RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr8RequiresViolation, mainErr86RequiresViolation, mainErr47RequiresViolation, mainErr14RequiresViolation, mainErr51RequiresViolation, mainErr94RequiresViolation, mainErr54RequiresViolation, mainErr38RequiresViolation, mainErr97RequiresViolation, mainErr0RequiresViolation, mainErr46RequiresViolation, mainErr89RequiresViolation, mainErr91RequiresViolation, mainErr3RequiresViolation, mainErr62RequiresViolation, mainErr49RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr65RequiresViolation, mainErr70RequiresViolation, mainErr17RequiresViolation, mainErr78RequiresViolation, mainErr30RequiresViolation, mainErr11RequiresViolation, mainErr57RequiresViolation, mainErr24RequiresViolation, mainErr76RequiresViolation, mainErr43RequiresViolation, mainErr83RequiresViolation, mainErr36RequiresViolation, mainErr59RequiresViolation, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr41RequiresViolation, mainErr99RequiresViolation, mainErr64RequiresViolation, mainErr72RequiresViolation, mainErr81RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr68RequiresViolation, mainErr75RequiresViolation, mainErr19RequiresViolation, mainErr98RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr80RequiresViolation, mainErr67RequiresViolation, mainErr34RequiresViolation, mainErr73RequiresViolation, mainErr40RequiresViolation]=== [2018-01-25 03:08:35,084 INFO L82 PathProgramCache]: Analyzing trace with hash 768774257, now seen corresponding path program 1 times [2018-01-25 03:08:35,084 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-25 03:08:35,085 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-25 03:08:35,085 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-25 03:08:35,085 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-25 03:08:35,085 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-25 03:08:35,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-25 03:08:35,098 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-25 03:08:35,361 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-25 03:08:35,362 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-01-25 03:08:35,362 INFO L187 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-01-25 03:08:35,363 INFO L199 CegarAbsIntRunner]: Running AI on error trace of length 35 with the following transitions: [2018-01-25 03:08:35,364 INFO L201 CegarAbsIntRunner]: [0], [1], [5], [6], [7], [10], [13], [14], [17], [20], [23], [26], [30], [32], [35], [62], [64], [67], [211], [217], [221], [223], [224], [226], [229], [241], [242], [247], [248], [251], [340], [341], [342] [2018-01-25 03:08:35,419 INFO L147 AbstractInterpreter]: Using domain VPDomain [2018-01-25 03:08:35,419 INFO L101 FixpointEngine]: Starting fixpoint engine with domain VPDomain (maxUnwinding=3, maxParallelStates=2) Received shutdown request... Cannot interrupt operation gracefully because timeout expired. Forcing shutdown