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_mostprecise.epf -i ../../../trunk/examples/svcomp/memsafety-ext/tree_of_cslls_true-valid-memsafety.i -------------------------------------------------------------------------------- This is Ultimate 0.1.23-6b94a2f [2018-01-24 20:19:34,105 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-01-24 20:19:34,107 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-01-24 20:19:34,122 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-01-24 20:19:34,122 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-01-24 20:19:34,123 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-01-24 20:19:34,124 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-01-24 20:19:34,125 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-01-24 20:19:34,126 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-01-24 20:19:34,127 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-01-24 20:19:34,128 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-01-24 20:19:34,128 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-01-24 20:19:34,129 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-01-24 20:19:34,131 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-01-24 20:19:34,131 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-01-24 20:19:34,134 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-01-24 20:19:34,136 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-01-24 20:19:34,138 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-01-24 20:19:34,140 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-01-24 20:19:34,141 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-01-24 20:19:34,144 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-01-24 20:19:34,144 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-01-24 20:19:34,144 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-01-24 20:19:34,145 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-01-24 20:19:34,146 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-01-24 20:19:34,147 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-01-24 20:19:34,147 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-01-24 20:19:34,148 INFO L177 SettingsManager]: PEA to Boogie provides no preferences, ignoring... [2018-01-24 20:19:34,148 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-01-24 20:19:34,148 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-01-24 20:19:34,149 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-01-24 20:19:34,149 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_mostprecise.epf [2018-01-24 20:19:34,159 INFO L110 SettingsManager]: Loading preferences was successful [2018-01-24 20:19:34,159 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-01-24 20:19:34,160 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-01-24 20:19:34,160 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-01-24 20:19:34,160 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-01-24 20:19:34,160 INFO L133 SettingsManager]: * Weq Fattening=true [2018-01-24 20:19:34,161 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=VPDomain [2018-01-24 20:19:34,161 INFO L133 SettingsManager]: * Precise comparison operator=true [2018-01-24 20:19:34,161 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-01-24 20:19:34,162 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-01-24 20:19:34,162 INFO L133 SettingsManager]: * sizeof long=4 [2018-01-24 20:19:34,162 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-01-24 20:19:34,162 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-01-24 20:19:34,162 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-01-24 20:19:34,163 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-01-24 20:19:34,163 INFO L133 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2018-01-24 20:19:34,163 INFO L133 SettingsManager]: * Bitprecise bitfields=true [2018-01-24 20:19:34,163 INFO L133 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2018-01-24 20:19:34,163 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-01-24 20:19:34,164 INFO L133 SettingsManager]: * sizeof long double=12 [2018-01-24 20:19:34,164 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-01-24 20:19:34,164 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-01-24 20:19:34,164 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-01-24 20:19:34,164 INFO L133 SettingsManager]: * Add additional assume for each assert=false [2018-01-24 20:19:34,165 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-01-24 20:19:34,165 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-01-24 20:19:34,165 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-01-24 20:19:34,165 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-01-24 20:19:34,165 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-01-24 20:19:34,166 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-01-24 20:19:34,166 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-01-24 20:19:34,166 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-01-24 20:19:34,166 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-01-24 20:19:34,166 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-01-24 20:19:34,167 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-01-24 20:19:34,167 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-01-24 20:19:34,168 INFO L133 SettingsManager]: * TransformationType=HEAP_SEPARATOR [2018-01-24 20:19:34,200 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-01-24 20:19:34,212 INFO L266 ainManager$Toolchain]: [Toolchain 1]: Parser(s) successfully initialized [2018-01-24 20:19:34,216 INFO L222 ainManager$Toolchain]: [Toolchain 1]: Toolchain data selected. [2018-01-24 20:19:34,218 INFO L271 PluginConnector]: Initializing CDTParser... [2018-01-24 20:19:34,218 INFO L276 PluginConnector]: CDTParser initialized [2018-01-24 20:19:34,219 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/memsafety-ext/tree_of_cslls_true-valid-memsafety.i [2018-01-24 20:19:34,388 INFO L304 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-01-24 20:19:34,394 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-01-24 20:19:34,395 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-01-24 20:19:34,395 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-01-24 20:19:34,402 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-01-24 20:19:34,403 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.01 08:19:34" (1/1) ... [2018-01-24 20:19:34,406 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2aee2335 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 08:19:34, skipping insertion in model container [2018-01-24 20:19:34,406 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.01 08:19:34" (1/1) ... [2018-01-24 20:19:34,425 INFO L153 Dispatcher]: Using SV-COMP mode [2018-01-24 20:19:34,466 INFO L153 Dispatcher]: Using SV-COMP mode [2018-01-24 20:19:34,584 INFO L450 PostProcessor]: Settings: Checked method=main [2018-01-24 20:19:34,605 INFO L450 PostProcessor]: Settings: Checked method=main [2018-01-24 20:19:34,615 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 08:19:34 WrapperNode [2018-01-24 20:19:34,615 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-01-24 20:19:34,616 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-01-24 20:19:34,616 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-01-24 20:19:34,616 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-01-24 20:19:34,626 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 08:19:34" (1/1) ... [2018-01-24 20:19:34,626 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 08:19:34" (1/1) ... [2018-01-24 20:19:34,639 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 08:19:34" (1/1) ... [2018-01-24 20:19:34,639 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 08:19:34" (1/1) ... [2018-01-24 20:19:34,647 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 08:19:34" (1/1) ... [2018-01-24 20:19:34,651 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 08:19:34" (1/1) ... [2018-01-24 20:19:34,652 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 08:19:34" (1/1) ... [2018-01-24 20:19:34,654 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-01-24 20:19:34,655 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-01-24 20:19:34,655 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-01-24 20:19:34,655 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-01-24 20:19:34,656 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 08:19:34" (1/1) ... No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-01-24 20:19:34,705 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-01-24 20:19:34,705 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-01-24 20:19:34,705 INFO L136 BoogieDeclarations]: Found implementation of procedure main [2018-01-24 20:19:34,705 INFO L128 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2018-01-24 20:19:34,705 INFO L128 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2018-01-24 20:19:34,705 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.free [2018-01-24 20:19:34,706 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-01-24 20:19:34,706 INFO L128 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-01-24 20:19:34,706 INFO L128 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2018-01-24 20:19:34,706 INFO L128 BoogieDeclarations]: Found specification of procedure malloc [2018-01-24 20:19:34,706 INFO L128 BoogieDeclarations]: Found specification of procedure free [2018-01-24 20:19:34,706 INFO L128 BoogieDeclarations]: Found specification of procedure main [2018-01-24 20:19:34,706 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-01-24 20:19:34,706 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-01-24 20:19:35,333 INFO L257 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-01-24 20:19:35,333 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.01 08:19:35 BoogieIcfgContainer [2018-01-24 20:19:35,334 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-01-24 20:19:35,335 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-01-24 20:19:35,335 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-01-24 20:19:35,337 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-01-24 20:19:35,337 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.01 08:19:34" (1/3) ... [2018-01-24 20:19:35,338 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2394f9e6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.01 08:19:35, skipping insertion in model container [2018-01-24 20:19:35,338 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 08:19:34" (2/3) ... [2018-01-24 20:19:35,339 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2394f9e6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.01 08:19:35, skipping insertion in model container [2018-01-24 20:19:35,339 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.01 08:19:35" (3/3) ... [2018-01-24 20:19:35,341 INFO L105 eAbstractionObserver]: Analyzing ICFG tree_of_cslls_true-valid-memsafety.i [2018-01-24 20:19:35,348 INFO L130 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-01-24 20:19:35,355 INFO L142 ceAbstractionStarter]: Appying trace abstraction to program that has 101 error locations. [2018-01-24 20:19:35,398 INFO L322 AbstractCegarLoop]: Interprodecural is true [2018-01-24 20:19:35,398 INFO L323 AbstractCegarLoop]: Hoare is true [2018-01-24 20:19:35,398 INFO L324 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-01-24 20:19:35,399 INFO L325 AbstractCegarLoop]: Backedges is TWOTRACK [2018-01-24 20:19:35,399 INFO L326 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-01-24 20:19:35,399 INFO L327 AbstractCegarLoop]: Difference is false [2018-01-24 20:19:35,399 INFO L328 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-01-24 20:19:35,399 INFO L333 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-01-24 20:19:35,400 INFO L87 2NestedWordAutomaton]: Mode: main mode - execution starts in main procedure [2018-01-24 20:19:35,422 INFO L276 IsEmpty]: Start isEmpty. Operand 220 states. [2018-01-24 20:19:35,428 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2018-01-24 20:19:35,428 INFO L314 BasicCegarLoop]: Found error trace [2018-01-24 20:19:35,429 INFO L322 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2018-01-24 20:19:35,429 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]=== [2018-01-24 20:19:35,433 INFO L82 PathProgramCache]: Analyzing trace with hash -1603684078, now seen corresponding path program 1 times [2018-01-24 20:19:35,435 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-24 20:19:35,479 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 20:19:35,479 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-24 20:19:35,479 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 20:19:35,479 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-24 20:19:35,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-24 20:19:35,543 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-24 20:19:35,615 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-24 20:19:35,617 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-24 20:19:35,617 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-01-24 20:19:35,617 INFO L252 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-01-24 20:19:35,620 INFO L409 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-01-24 20:19:35,630 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-01-24 20:19:35,631 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-01-24 20:19:35,633 INFO L87 Difference]: Start difference. First operand 220 states. Second operand 4 states. [2018-01-24 20:19:36,265 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-24 20:19:36,265 INFO L93 Difference]: Finished difference Result 503 states and 561 transitions. [2018-01-24 20:19:36,266 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-01-24 20:19:36,267 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 8 [2018-01-24 20:19:36,268 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-24 20:19:36,284 INFO L225 Difference]: With dead ends: 503 [2018-01-24 20:19:36,285 INFO L226 Difference]: Without dead ends: 321 [2018-01-24 20:19:36,290 INFO L525 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-01-24 20:19:36,305 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 321 states. [2018-01-24 20:19:36,329 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 321 to 208. [2018-01-24 20:19:36,330 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 208 states. [2018-01-24 20:19:36,331 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 208 states to 208 states and 224 transitions. [2018-01-24 20:19:36,333 INFO L78 Accepts]: Start accepts. Automaton has 208 states and 224 transitions. Word has length 8 [2018-01-24 20:19:36,333 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-24 20:19:36,333 INFO L432 AbstractCegarLoop]: Abstraction has 208 states and 224 transitions. [2018-01-24 20:19:36,333 INFO L433 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-01-24 20:19:36,333 INFO L276 IsEmpty]: Start isEmpty. Operand 208 states and 224 transitions. [2018-01-24 20:19:36,334 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2018-01-24 20:19:36,334 INFO L314 BasicCegarLoop]: Found error trace [2018-01-24 20:19:36,334 INFO L322 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2018-01-24 20:19:36,334 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]=== [2018-01-24 20:19:36,334 INFO L82 PathProgramCache]: Analyzing trace with hash -1603684077, now seen corresponding path program 1 times [2018-01-24 20:19:36,334 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-24 20:19:36,335 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 20:19:36,335 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-24 20:19:36,335 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 20:19:36,335 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-24 20:19:36,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-24 20:19:36,357 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-24 20:19:36,416 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-24 20:19:36,416 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-24 20:19:36,416 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-01-24 20:19:36,416 INFO L252 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-01-24 20:19:36,418 INFO L409 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-01-24 20:19:36,418 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-01-24 20:19:36,419 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-01-24 20:19:36,419 INFO L87 Difference]: Start difference. First operand 208 states and 224 transitions. Second operand 4 states. [2018-01-24 20:19:36,695 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-24 20:19:36,695 INFO L93 Difference]: Finished difference Result 208 states and 224 transitions. [2018-01-24 20:19:36,695 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-01-24 20:19:36,695 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 8 [2018-01-24 20:19:36,696 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-24 20:19:36,697 INFO L225 Difference]: With dead ends: 208 [2018-01-24 20:19:36,697 INFO L226 Difference]: Without dead ends: 206 [2018-01-24 20:19:36,698 INFO L525 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-01-24 20:19:36,699 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 206 states. [2018-01-24 20:19:36,707 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 206 to 206. [2018-01-24 20:19:36,707 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 206 states. [2018-01-24 20:19:36,708 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 206 states to 206 states and 222 transitions. [2018-01-24 20:19:36,709 INFO L78 Accepts]: Start accepts. Automaton has 206 states and 222 transitions. Word has length 8 [2018-01-24 20:19:36,709 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-24 20:19:36,709 INFO L432 AbstractCegarLoop]: Abstraction has 206 states and 222 transitions. [2018-01-24 20:19:36,709 INFO L433 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-01-24 20:19:36,709 INFO L276 IsEmpty]: Start isEmpty. Operand 206 states and 222 transitions. [2018-01-24 20:19:36,709 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2018-01-24 20:19:36,710 INFO L314 BasicCegarLoop]: Found error trace [2018-01-24 20:19:36,710 INFO L322 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-24 20:19:36,711 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]=== [2018-01-24 20:19:36,711 INFO L82 PathProgramCache]: Analyzing trace with hash 1863813244, now seen corresponding path program 1 times [2018-01-24 20:19:36,711 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-24 20:19:36,712 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 20:19:36,712 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-24 20:19:36,712 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 20:19:36,713 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-24 20:19:36,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-24 20:19:36,732 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-24 20:19:36,805 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-24 20:19:36,806 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-24 20:19:36,806 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-01-24 20:19:36,806 INFO L252 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-01-24 20:19:36,806 INFO L409 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-01-24 20:19:36,806 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-01-24 20:19:36,807 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2018-01-24 20:19:36,807 INFO L87 Difference]: Start difference. First operand 206 states and 222 transitions. Second operand 5 states. [2018-01-24 20:19:37,252 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-24 20:19:37,252 INFO L93 Difference]: Finished difference Result 362 states and 390 transitions. [2018-01-24 20:19:37,252 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-01-24 20:19:37,253 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 11 [2018-01-24 20:19:37,253 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-24 20:19:37,255 INFO L225 Difference]: With dead ends: 362 [2018-01-24 20:19:37,255 INFO L226 Difference]: Without dead ends: 355 [2018-01-24 20:19:37,256 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 [2018-01-24 20:19:37,256 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 355 states. [2018-01-24 20:19:37,265 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 355 to 199. [2018-01-24 20:19:37,266 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 199 states. [2018-01-24 20:19:37,267 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 199 states to 199 states and 215 transitions. [2018-01-24 20:19:37,268 INFO L78 Accepts]: Start accepts. Automaton has 199 states and 215 transitions. Word has length 11 [2018-01-24 20:19:37,268 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-24 20:19:37,268 INFO L432 AbstractCegarLoop]: Abstraction has 199 states and 215 transitions. [2018-01-24 20:19:37,268 INFO L433 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-01-24 20:19:37,269 INFO L276 IsEmpty]: Start isEmpty. Operand 199 states and 215 transitions. [2018-01-24 20:19:37,269 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2018-01-24 20:19:37,269 INFO L314 BasicCegarLoop]: Found error trace [2018-01-24 20:19:37,269 INFO L322 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-24 20:19:37,270 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]=== [2018-01-24 20:19:37,270 INFO L82 PathProgramCache]: Analyzing trace with hash -476893285, now seen corresponding path program 1 times [2018-01-24 20:19:37,270 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-24 20:19:37,271 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 20:19:37,271 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-24 20:19:37,272 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 20:19:37,272 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-24 20:19:37,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-24 20:19:37,288 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-24 20:19:37,354 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-24 20:19:37,354 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-24 20:19:37,354 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-01-24 20:19:37,354 INFO L252 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-01-24 20:19:37,355 INFO L409 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-01-24 20:19:37,355 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-01-24 20:19:37,355 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-01-24 20:19:37,355 INFO L87 Difference]: Start difference. First operand 199 states and 215 transitions. Second operand 5 states. [2018-01-24 20:19:37,642 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-24 20:19:37,642 INFO L93 Difference]: Finished difference Result 275 states and 297 transitions. [2018-01-24 20:19:37,643 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-01-24 20:19:37,643 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 14 [2018-01-24 20:19:37,643 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-24 20:19:37,645 INFO L225 Difference]: With dead ends: 275 [2018-01-24 20:19:37,645 INFO L226 Difference]: Without dead ends: 274 [2018-01-24 20:19:37,645 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 [2018-01-24 20:19:37,646 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 274 states. [2018-01-24 20:19:37,654 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 274 to 198. [2018-01-24 20:19:37,655 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 198 states. [2018-01-24 20:19:37,656 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 198 states to 198 states and 214 transitions. [2018-01-24 20:19:37,656 INFO L78 Accepts]: Start accepts. Automaton has 198 states and 214 transitions. Word has length 14 [2018-01-24 20:19:37,657 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-24 20:19:37,657 INFO L432 AbstractCegarLoop]: Abstraction has 198 states and 214 transitions. [2018-01-24 20:19:37,657 INFO L433 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-01-24 20:19:37,657 INFO L276 IsEmpty]: Start isEmpty. Operand 198 states and 214 transitions. [2018-01-24 20:19:37,657 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2018-01-24 20:19:37,658 INFO L314 BasicCegarLoop]: Found error trace [2018-01-24 20:19:37,658 INFO L322 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-24 20:19:37,658 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]=== [2018-01-24 20:19:37,658 INFO L82 PathProgramCache]: Analyzing trace with hash -476893284, now seen corresponding path program 1 times [2018-01-24 20:19:37,658 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-24 20:19:37,659 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 20:19:37,659 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-24 20:19:37,660 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 20:19:37,660 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-24 20:19:37,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-24 20:19:37,673 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-24 20:19:37,735 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-24 20:19:37,735 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-24 20:19:37,735 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-01-24 20:19:37,735 INFO L252 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-01-24 20:19:37,736 INFO L409 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-01-24 20:19:37,736 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-01-24 20:19:37,736 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-01-24 20:19:37,736 INFO L87 Difference]: Start difference. First operand 198 states and 214 transitions. Second operand 5 states. [2018-01-24 20:19:38,135 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-24 20:19:38,135 INFO L93 Difference]: Finished difference Result 316 states and 346 transitions. [2018-01-24 20:19:38,136 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-01-24 20:19:38,136 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 14 [2018-01-24 20:19:38,136 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-24 20:19:38,137 INFO L225 Difference]: With dead ends: 316 [2018-01-24 20:19:38,138 INFO L226 Difference]: Without dead ends: 315 [2018-01-24 20:19:38,138 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 [2018-01-24 20:19:38,139 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 315 states. [2018-01-24 20:19:38,144 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 315 to 197. [2018-01-24 20:19:38,144 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 197 states. [2018-01-24 20:19:38,145 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 197 states to 197 states and 213 transitions. [2018-01-24 20:19:38,145 INFO L78 Accepts]: Start accepts. Automaton has 197 states and 213 transitions. Word has length 14 [2018-01-24 20:19:38,145 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-24 20:19:38,146 INFO L432 AbstractCegarLoop]: Abstraction has 197 states and 213 transitions. [2018-01-24 20:19:38,146 INFO L433 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-01-24 20:19:38,146 INFO L276 IsEmpty]: Start isEmpty. Operand 197 states and 213 transitions. [2018-01-24 20:19:38,147 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2018-01-24 20:19:38,147 INFO L314 BasicCegarLoop]: Found error trace [2018-01-24 20:19:38,147 INFO L322 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-24 20:19:38,147 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]=== [2018-01-24 20:19:38,147 INFO L82 PathProgramCache]: Analyzing trace with hash 1521405160, now seen corresponding path program 1 times [2018-01-24 20:19:38,148 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-24 20:19:38,148 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 20:19:38,149 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-24 20:19:38,149 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 20:19:38,149 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-24 20:19:38,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-24 20:19:38,172 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-24 20:19:38,347 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-24 20:19:38,348 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-24 20:19:38,348 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-01-24 20:19:38,348 INFO L252 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-01-24 20:19:38,348 INFO L409 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-01-24 20:19:38,349 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-01-24 20:19:38,349 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2018-01-24 20:19:38,349 INFO L87 Difference]: Start difference. First operand 197 states and 213 transitions. Second operand 8 states. [2018-01-24 20:19:39,034 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-24 20:19:39,034 INFO L93 Difference]: Finished difference Result 370 states and 406 transitions. [2018-01-24 20:19:39,035 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-01-24 20:19:39,035 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 22 [2018-01-24 20:19:39,035 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-24 20:19:39,037 INFO L225 Difference]: With dead ends: 370 [2018-01-24 20:19:39,037 INFO L226 Difference]: Without dead ends: 369 [2018-01-24 20:19:39,037 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 [2018-01-24 20:19:39,038 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 369 states. [2018-01-24 20:19:39,043 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 369 to 204. [2018-01-24 20:19:39,043 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 204 states. [2018-01-24 20:19:39,045 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 204 states to 204 states and 222 transitions. [2018-01-24 20:19:39,045 INFO L78 Accepts]: Start accepts. Automaton has 204 states and 222 transitions. Word has length 22 [2018-01-24 20:19:39,045 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-24 20:19:39,045 INFO L432 AbstractCegarLoop]: Abstraction has 204 states and 222 transitions. [2018-01-24 20:19:39,045 INFO L433 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-01-24 20:19:39,045 INFO L276 IsEmpty]: Start isEmpty. Operand 204 states and 222 transitions. [2018-01-24 20:19:39,046 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2018-01-24 20:19:39,046 INFO L314 BasicCegarLoop]: Found error trace [2018-01-24 20:19:39,046 INFO L322 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-24 20:19:39,046 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]=== [2018-01-24 20:19:39,046 INFO L82 PathProgramCache]: Analyzing trace with hash 1521405161, now seen corresponding path program 1 times [2018-01-24 20:19:39,047 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-24 20:19:39,047 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 20:19:39,048 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-24 20:19:39,048 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 20:19:39,048 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-24 20:19:39,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-24 20:19:39,069 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-24 20:19:39,311 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-24 20:19:39,311 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-24 20:19:39,311 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-01-24 20:19:39,311 INFO L252 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-01-24 20:19:39,312 INFO L409 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-01-24 20:19:39,312 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-01-24 20:19:39,312 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2018-01-24 20:19:39,312 INFO L87 Difference]: Start difference. First operand 204 states and 222 transitions. Second operand 8 states. [2018-01-24 20:19:40,039 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-24 20:19:40,040 INFO L93 Difference]: Finished difference Result 556 states and 612 transitions. [2018-01-24 20:19:40,040 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-01-24 20:19:40,040 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 22 [2018-01-24 20:19:40,040 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-24 20:19:40,043 INFO L225 Difference]: With dead ends: 556 [2018-01-24 20:19:40,044 INFO L226 Difference]: Without dead ends: 555 [2018-01-24 20:19:40,044 INFO L525 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=51, Invalid=105, Unknown=0, NotChecked=0, Total=156 [2018-01-24 20:19:40,045 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 555 states. [2018-01-24 20:19:40,052 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 555 to 204. [2018-01-24 20:19:40,052 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 204 states. [2018-01-24 20:19:40,053 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 204 states to 204 states and 221 transitions. [2018-01-24 20:19:40,054 INFO L78 Accepts]: Start accepts. Automaton has 204 states and 221 transitions. Word has length 22 [2018-01-24 20:19:40,054 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-24 20:19:40,054 INFO L432 AbstractCegarLoop]: Abstraction has 204 states and 221 transitions. [2018-01-24 20:19:40,054 INFO L433 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-01-24 20:19:40,054 INFO L276 IsEmpty]: Start isEmpty. Operand 204 states and 221 transitions. [2018-01-24 20:19:40,055 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2018-01-24 20:19:40,055 INFO L314 BasicCegarLoop]: Found error trace [2018-01-24 20:19:40,055 INFO L322 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-24 20:19:40,055 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]=== [2018-01-24 20:19:40,055 INFO L82 PathProgramCache]: Analyzing trace with hash -115400475, now seen corresponding path program 1 times [2018-01-24 20:19:40,055 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-24 20:19:40,056 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 20:19:40,056 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-24 20:19:40,056 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 20:19:40,056 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-24 20:19:40,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-24 20:19:40,068 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-24 20:19:40,109 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-24 20:19:40,109 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-24 20:19:40,109 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-01-24 20:19:40,109 INFO L252 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-01-24 20:19:40,110 INFO L409 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-01-24 20:19:40,110 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-01-24 20:19:40,110 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-01-24 20:19:40,110 INFO L87 Difference]: Start difference. First operand 204 states and 221 transitions. Second operand 4 states. [2018-01-24 20:19:40,351 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-24 20:19:40,351 INFO L93 Difference]: Finished difference Result 291 states and 324 transitions. [2018-01-24 20:19:40,351 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-01-24 20:19:40,352 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 23 [2018-01-24 20:19:40,352 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-24 20:19:40,353 INFO L225 Difference]: With dead ends: 291 [2018-01-24 20:19:40,353 INFO L226 Difference]: Without dead ends: 273 [2018-01-24 20:19:40,353 INFO L525 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-01-24 20:19:40,354 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 273 states. [2018-01-24 20:19:40,359 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 273 to 197. [2018-01-24 20:19:40,359 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 197 states. [2018-01-24 20:19:40,360 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 197 states to 197 states and 218 transitions. [2018-01-24 20:19:40,360 INFO L78 Accepts]: Start accepts. Automaton has 197 states and 218 transitions. Word has length 23 [2018-01-24 20:19:40,360 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-24 20:19:40,360 INFO L432 AbstractCegarLoop]: Abstraction has 197 states and 218 transitions. [2018-01-24 20:19:40,361 INFO L433 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-01-24 20:19:40,361 INFO L276 IsEmpty]: Start isEmpty. Operand 197 states and 218 transitions. [2018-01-24 20:19:40,361 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2018-01-24 20:19:40,361 INFO L314 BasicCegarLoop]: Found error trace [2018-01-24 20:19:40,361 INFO L322 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-24 20:19:40,361 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]=== [2018-01-24 20:19:40,362 INFO L82 PathProgramCache]: Analyzing trace with hash -115400474, now seen corresponding path program 1 times [2018-01-24 20:19:40,362 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-24 20:19:40,362 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 20:19:40,362 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-24 20:19:40,362 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 20:19:40,363 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-24 20:19:40,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-24 20:19:40,373 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-24 20:19:40,459 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-24 20:19:40,459 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-24 20:19:40,459 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-01-24 20:19:40,459 INFO L252 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-01-24 20:19:40,460 INFO L409 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-01-24 20:19:40,460 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-01-24 20:19:40,460 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2018-01-24 20:19:40,460 INFO L87 Difference]: Start difference. First operand 197 states and 218 transitions. Second operand 6 states. [2018-01-24 20:19:40,786 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-24 20:19:40,786 INFO L93 Difference]: Finished difference Result 483 states and 546 transitions. [2018-01-24 20:19:40,786 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-01-24 20:19:40,786 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 23 [2018-01-24 20:19:40,787 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-24 20:19:40,789 INFO L225 Difference]: With dead ends: 483 [2018-01-24 20:19:40,789 INFO L226 Difference]: Without dead ends: 464 [2018-01-24 20:19:40,790 INFO L525 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=35, Invalid=55, Unknown=0, NotChecked=0, Total=90 [2018-01-24 20:19:40,790 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 464 states. [2018-01-24 20:19:40,805 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 464 to 346. [2018-01-24 20:19:40,805 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 346 states. [2018-01-24 20:19:40,807 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 346 states to 346 states and 473 transitions. [2018-01-24 20:19:40,808 INFO L78 Accepts]: Start accepts. Automaton has 346 states and 473 transitions. Word has length 23 [2018-01-24 20:19:40,808 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-24 20:19:40,808 INFO L432 AbstractCegarLoop]: Abstraction has 346 states and 473 transitions. [2018-01-24 20:19:40,808 INFO L433 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-01-24 20:19:40,809 INFO L276 IsEmpty]: Start isEmpty. Operand 346 states and 473 transitions. [2018-01-24 20:19:40,809 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2018-01-24 20:19:40,809 INFO L314 BasicCegarLoop]: Found error trace [2018-01-24 20:19:40,809 INFO L322 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-24 20:19:40,810 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]=== [2018-01-24 20:19:40,810 INFO L82 PathProgramCache]: Analyzing trace with hash -81080279, now seen corresponding path program 1 times [2018-01-24 20:19:40,810 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-24 20:19:40,811 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 20:19:40,811 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-24 20:19:40,811 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 20:19:40,811 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-24 20:19:40,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-24 20:19:40,824 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-24 20:19:40,873 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-24 20:19:40,874 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-24 20:19:40,874 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-01-24 20:19:40,874 INFO L252 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-01-24 20:19:40,874 INFO L409 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-01-24 20:19:40,874 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-01-24 20:19:40,874 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-01-24 20:19:40,874 INFO L87 Difference]: Start difference. First operand 346 states and 473 transitions. Second operand 4 states. [2018-01-24 20:19:41,169 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-24 20:19:41,169 INFO L93 Difference]: Finished difference Result 702 states and 999 transitions. [2018-01-24 20:19:41,169 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-01-24 20:19:41,169 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 23 [2018-01-24 20:19:41,169 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-24 20:19:41,172 INFO L225 Difference]: With dead ends: 702 [2018-01-24 20:19:41,173 INFO L226 Difference]: Without dead ends: 701 [2018-01-24 20:19:41,173 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 [2018-01-24 20:19:41,174 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 701 states. [2018-01-24 20:19:41,186 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 701 to 345. [2018-01-24 20:19:41,186 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 345 states. [2018-01-24 20:19:41,188 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 345 states to 345 states and 472 transitions. [2018-01-24 20:19:41,188 INFO L78 Accepts]: Start accepts. Automaton has 345 states and 472 transitions. Word has length 23 [2018-01-24 20:19:41,188 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-24 20:19:41,188 INFO L432 AbstractCegarLoop]: Abstraction has 345 states and 472 transitions. [2018-01-24 20:19:41,188 INFO L433 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-01-24 20:19:41,188 INFO L276 IsEmpty]: Start isEmpty. Operand 345 states and 472 transitions. [2018-01-24 20:19:41,189 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2018-01-24 20:19:41,189 INFO L314 BasicCegarLoop]: Found error trace [2018-01-24 20:19:41,189 INFO L322 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-24 20:19:41,190 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]=== [2018-01-24 20:19:41,190 INFO L82 PathProgramCache]: Analyzing trace with hash -81080280, now seen corresponding path program 1 times [2018-01-24 20:19:41,191 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-24 20:19:41,191 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 20:19:41,192 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-24 20:19:41,192 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 20:19:41,192 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-24 20:19:41,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-24 20:19:41,203 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-24 20:19:41,227 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-24 20:19:41,227 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-24 20:19:41,227 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-01-24 20:19:41,227 INFO L252 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-01-24 20:19:41,228 INFO L409 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-01-24 20:19:41,228 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-01-24 20:19:41,228 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-01-24 20:19:41,228 INFO L87 Difference]: Start difference. First operand 345 states and 472 transitions. Second operand 4 states. [2018-01-24 20:19:41,682 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-24 20:19:41,682 INFO L93 Difference]: Finished difference Result 863 states and 1197 transitions. [2018-01-24 20:19:41,683 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-01-24 20:19:41,683 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 23 [2018-01-24 20:19:41,683 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-24 20:19:41,687 INFO L225 Difference]: With dead ends: 863 [2018-01-24 20:19:41,687 INFO L226 Difference]: Without dead ends: 861 [2018-01-24 20:19:41,688 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 [2018-01-24 20:19:41,689 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 861 states. [2018-01-24 20:19:41,706 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 861 to 343. [2018-01-24 20:19:41,706 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 343 states. [2018-01-24 20:19:41,708 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 343 states to 343 states and 467 transitions. [2018-01-24 20:19:41,708 INFO L78 Accepts]: Start accepts. Automaton has 343 states and 467 transitions. Word has length 23 [2018-01-24 20:19:41,708 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-24 20:19:41,709 INFO L432 AbstractCegarLoop]: Abstraction has 343 states and 467 transitions. [2018-01-24 20:19:41,709 INFO L433 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-01-24 20:19:41,709 INFO L276 IsEmpty]: Start isEmpty. Operand 343 states and 467 transitions. [2018-01-24 20:19:41,709 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2018-01-24 20:19:41,710 INFO L314 BasicCegarLoop]: Found error trace [2018-01-24 20:19:41,710 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] [2018-01-24 20:19:41,710 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]=== [2018-01-24 20:19:41,710 INFO L82 PathProgramCache]: Analyzing trace with hash 771701702, now seen corresponding path program 1 times [2018-01-24 20:19:41,710 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-24 20:19:41,711 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 20:19:41,711 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-24 20:19:41,711 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 20:19:41,711 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-24 20:19:41,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-24 20:19:41,720 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-24 20:19:41,740 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-24 20:19:41,740 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-24 20:19:41,741 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-01-24 20:19:41,741 INFO L252 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-01-24 20:19:41,741 INFO L409 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-01-24 20:19:41,741 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-01-24 20:19:41,741 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-01-24 20:19:41,742 INFO L87 Difference]: Start difference. First operand 343 states and 467 transitions. Second operand 4 states. [2018-01-24 20:19:41,786 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-24 20:19:41,786 INFO L93 Difference]: Finished difference Result 416 states and 547 transitions. [2018-01-24 20:19:41,786 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-01-24 20:19:41,787 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 25 [2018-01-24 20:19:41,787 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-24 20:19:41,789 INFO L225 Difference]: With dead ends: 416 [2018-01-24 20:19:41,789 INFO L226 Difference]: Without dead ends: 413 [2018-01-24 20:19:41,789 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 [2018-01-24 20:19:41,790 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 413 states. [2018-01-24 20:19:41,806 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 413 to 382. [2018-01-24 20:19:41,806 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 382 states. [2018-01-24 20:19:41,808 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 382 states to 382 states and 541 transitions. [2018-01-24 20:19:41,809 INFO L78 Accepts]: Start accepts. Automaton has 382 states and 541 transitions. Word has length 25 [2018-01-24 20:19:41,809 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-24 20:19:41,809 INFO L432 AbstractCegarLoop]: Abstraction has 382 states and 541 transitions. [2018-01-24 20:19:41,809 INFO L433 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-01-24 20:19:41,809 INFO L276 IsEmpty]: Start isEmpty. Operand 382 states and 541 transitions. [2018-01-24 20:19:41,810 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2018-01-24 20:19:41,810 INFO L314 BasicCegarLoop]: Found error trace [2018-01-24 20:19:41,810 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] [2018-01-24 20:19:41,810 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]=== [2018-01-24 20:19:41,811 INFO L82 PathProgramCache]: Analyzing trace with hash -1690982226, now seen corresponding path program 1 times [2018-01-24 20:19:41,811 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-24 20:19:41,811 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 20:19:41,812 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-24 20:19:41,812 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 20:19:41,812 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-24 20:19:41,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-24 20:19:41,826 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-24 20:19:41,945 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-24 20:19:41,945 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-24 20:19:41,945 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2018-01-24 20:19:41,945 INFO L252 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-01-24 20:19:41,946 INFO L409 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-01-24 20:19:41,946 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-01-24 20:19:41,946 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2018-01-24 20:19:41,946 INFO L87 Difference]: Start difference. First operand 382 states and 541 transitions. Second operand 9 states. [2018-01-24 20:19:43,563 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-24 20:19:43,563 INFO L93 Difference]: Finished difference Result 1252 states and 1783 transitions. [2018-01-24 20:19:43,563 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2018-01-24 20:19:43,563 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 26 [2018-01-24 20:19:43,564 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-24 20:19:43,569 INFO L225 Difference]: With dead ends: 1252 [2018-01-24 20:19:43,570 INFO L226 Difference]: Without dead ends: 1251 [2018-01-24 20:19:43,570 INFO L525 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=97, Invalid=209, Unknown=0, NotChecked=0, Total=306 [2018-01-24 20:19:43,571 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1251 states. [2018-01-24 20:19:43,593 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1251 to 381. [2018-01-24 20:19:43,593 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 381 states. [2018-01-24 20:19:43,595 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 381 states to 381 states and 540 transitions. [2018-01-24 20:19:43,595 INFO L78 Accepts]: Start accepts. Automaton has 381 states and 540 transitions. Word has length 26 [2018-01-24 20:19:43,596 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-24 20:19:43,596 INFO L432 AbstractCegarLoop]: Abstraction has 381 states and 540 transitions. [2018-01-24 20:19:43,596 INFO L433 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-01-24 20:19:43,596 INFO L276 IsEmpty]: Start isEmpty. Operand 381 states and 540 transitions. [2018-01-24 20:19:43,597 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2018-01-24 20:19:43,597 INFO L314 BasicCegarLoop]: Found error trace [2018-01-24 20:19:43,597 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] [2018-01-24 20:19:43,597 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]=== [2018-01-24 20:19:43,597 INFO L82 PathProgramCache]: Analyzing trace with hash -1690982225, now seen corresponding path program 1 times [2018-01-24 20:19:43,598 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-24 20:19:43,598 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 20:19:43,599 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-24 20:19:43,599 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 20:19:43,599 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-24 20:19:43,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-24 20:19:43,614 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-24 20:19:43,741 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-24 20:19:43,742 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-24 20:19:43,742 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2018-01-24 20:19:43,742 INFO L252 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-01-24 20:19:43,742 INFO L409 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-01-24 20:19:43,742 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-01-24 20:19:43,743 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2018-01-24 20:19:43,743 INFO L87 Difference]: Start difference. First operand 381 states and 540 transitions. Second operand 9 states. [2018-01-24 20:19:44,489 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-24 20:19:44,489 INFO L93 Difference]: Finished difference Result 1251 states and 1782 transitions. [2018-01-24 20:19:44,489 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2018-01-24 20:19:44,489 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 26 [2018-01-24 20:19:44,490 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-24 20:19:44,495 INFO L225 Difference]: With dead ends: 1251 [2018-01-24 20:19:44,496 INFO L226 Difference]: Without dead ends: 1250 [2018-01-24 20:19:44,497 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 [2018-01-24 20:19:44,498 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1250 states. [2018-01-24 20:19:44,520 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1250 to 380. [2018-01-24 20:19:44,520 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 380 states. [2018-01-24 20:19:44,522 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 380 states to 380 states and 539 transitions. [2018-01-24 20:19:44,522 INFO L78 Accepts]: Start accepts. Automaton has 380 states and 539 transitions. Word has length 26 [2018-01-24 20:19:44,522 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-24 20:19:44,523 INFO L432 AbstractCegarLoop]: Abstraction has 380 states and 539 transitions. [2018-01-24 20:19:44,523 INFO L433 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-01-24 20:19:44,523 INFO L276 IsEmpty]: Start isEmpty. Operand 380 states and 539 transitions. [2018-01-24 20:19:44,524 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2018-01-24 20:19:44,524 INFO L314 BasicCegarLoop]: Found error trace [2018-01-24 20:19:44,524 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] [2018-01-24 20:19:44,524 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]=== [2018-01-24 20:19:44,524 INFO L82 PathProgramCache]: Analyzing trace with hash -679017658, now seen corresponding path program 1 times [2018-01-24 20:19:44,525 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-24 20:19:44,525 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 20:19:44,526 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-24 20:19:44,526 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 20:19:44,526 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-24 20:19:44,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-24 20:19:44,537 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-24 20:19:44,557 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-24 20:19:44,557 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-24 20:19:44,557 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-01-24 20:19:44,557 INFO L252 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-01-24 20:19:44,557 INFO L409 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-01-24 20:19:44,557 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-01-24 20:19:44,558 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-01-24 20:19:44,558 INFO L87 Difference]: Start difference. First operand 380 states and 539 transitions. Second operand 3 states. [2018-01-24 20:19:44,574 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-24 20:19:44,574 INFO L93 Difference]: Finished difference Result 589 states and 875 transitions. [2018-01-24 20:19:44,574 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-01-24 20:19:44,575 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 30 [2018-01-24 20:19:44,575 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-24 20:19:44,576 INFO L225 Difference]: With dead ends: 589 [2018-01-24 20:19:44,576 INFO L226 Difference]: Without dead ends: 384 [2018-01-24 20:19:44,577 INFO L525 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-01-24 20:19:44,578 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 384 states. [2018-01-24 20:19:44,589 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 384 to 384. [2018-01-24 20:19:44,589 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 384 states. [2018-01-24 20:19:44,590 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 384 states to 384 states and 543 transitions. [2018-01-24 20:19:44,590 INFO L78 Accepts]: Start accepts. Automaton has 384 states and 543 transitions. Word has length 30 [2018-01-24 20:19:44,591 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-24 20:19:44,591 INFO L432 AbstractCegarLoop]: Abstraction has 384 states and 543 transitions. [2018-01-24 20:19:44,591 INFO L433 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-01-24 20:19:44,591 INFO L276 IsEmpty]: Start isEmpty. Operand 384 states and 543 transitions. [2018-01-24 20:19:44,591 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2018-01-24 20:19:44,591 INFO L314 BasicCegarLoop]: Found error trace [2018-01-24 20:19:44,591 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] [2018-01-24 20:19:44,592 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]=== [2018-01-24 20:19:44,592 INFO L82 PathProgramCache]: Analyzing trace with hash 1240786582, now seen corresponding path program 1 times [2018-01-24 20:19:44,592 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-24 20:19:44,593 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 20:19:44,593 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-24 20:19:44,593 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 20:19:44,593 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-24 20:19:44,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-24 20:19:44,601 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-24 20:19:44,619 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-24 20:19:44,619 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-24 20:19:44,619 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-01-24 20:19:44,620 INFO L252 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-01-24 20:19:44,620 INFO L409 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-01-24 20:19:44,620 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-01-24 20:19:44,620 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-01-24 20:19:44,620 INFO L87 Difference]: Start difference. First operand 384 states and 543 transitions. Second operand 3 states. [2018-01-24 20:19:44,648 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-24 20:19:44,648 INFO L93 Difference]: Finished difference Result 735 states and 1054 transitions. [2018-01-24 20:19:44,648 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-01-24 20:19:44,648 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 31 [2018-01-24 20:19:44,649 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-24 20:19:44,650 INFO L225 Difference]: With dead ends: 735 [2018-01-24 20:19:44,650 INFO L226 Difference]: Without dead ends: 387 [2018-01-24 20:19:44,651 INFO L525 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-01-24 20:19:44,652 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 387 states. [2018-01-24 20:19:44,662 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 387 to 387. [2018-01-24 20:19:44,662 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 387 states. [2018-01-24 20:19:44,663 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 387 states to 387 states and 546 transitions. [2018-01-24 20:19:44,664 INFO L78 Accepts]: Start accepts. Automaton has 387 states and 546 transitions. Word has length 31 [2018-01-24 20:19:44,664 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-24 20:19:44,664 INFO L432 AbstractCegarLoop]: Abstraction has 387 states and 546 transitions. [2018-01-24 20:19:44,664 INFO L433 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-01-24 20:19:44,664 INFO L276 IsEmpty]: Start isEmpty. Operand 387 states and 546 transitions. [2018-01-24 20:19:44,664 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2018-01-24 20:19:44,665 INFO L314 BasicCegarLoop]: Found error trace [2018-01-24 20:19:44,665 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] [2018-01-24 20:19:44,665 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]=== [2018-01-24 20:19:44,665 INFO L82 PathProgramCache]: Analyzing trace with hash 348971873, now seen corresponding path program 1 times [2018-01-24 20:19:44,665 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-24 20:19:44,666 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 20:19:44,666 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-24 20:19:44,666 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 20:19:44,666 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-24 20:19:44,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-24 20:19:44,674 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-24 20:19:44,705 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-24 20:19:44,705 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-24 20:19:44,705 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-01-24 20:19:44,706 INFO L252 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-01-24 20:19:44,706 INFO L409 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-01-24 20:19:44,706 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-01-24 20:19:44,706 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-01-24 20:19:44,706 INFO L87 Difference]: Start difference. First operand 387 states and 546 transitions. Second operand 3 states. [2018-01-24 20:19:44,772 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-24 20:19:44,772 INFO L93 Difference]: Finished difference Result 637 states and 909 transitions. [2018-01-24 20:19:44,772 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-01-24 20:19:44,772 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 32 [2018-01-24 20:19:44,773 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-24 20:19:44,774 INFO L225 Difference]: With dead ends: 637 [2018-01-24 20:19:44,774 INFO L226 Difference]: Without dead ends: 428 [2018-01-24 20:19:44,775 INFO L525 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-01-24 20:19:44,775 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 428 states. [2018-01-24 20:19:44,786 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 428 to 379. [2018-01-24 20:19:44,786 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 379 states. [2018-01-24 20:19:44,787 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 379 states to 379 states and 526 transitions. [2018-01-24 20:19:44,788 INFO L78 Accepts]: Start accepts. Automaton has 379 states and 526 transitions. Word has length 32 [2018-01-24 20:19:44,788 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-24 20:19:44,788 INFO L432 AbstractCegarLoop]: Abstraction has 379 states and 526 transitions. [2018-01-24 20:19:44,788 INFO L433 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-01-24 20:19:44,788 INFO L276 IsEmpty]: Start isEmpty. Operand 379 states and 526 transitions. [2018-01-24 20:19:44,788 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2018-01-24 20:19:44,788 INFO L314 BasicCegarLoop]: Found error trace [2018-01-24 20:19:44,789 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] [2018-01-24 20:19:44,789 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]=== [2018-01-24 20:19:44,789 INFO L82 PathProgramCache]: Analyzing trace with hash 1663635795, now seen corresponding path program 1 times [2018-01-24 20:19:44,789 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-24 20:19:44,790 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 20:19:44,790 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-24 20:19:44,790 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 20:19:44,790 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-24 20:19:44,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-24 20:19:44,799 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-24 20:19:45,160 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-24 20:19:45,160 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-24 20:19:45,160 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2018-01-24 20:19:45,160 INFO L252 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-01-24 20:19:45,161 INFO L409 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-01-24 20:19:45,161 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-01-24 20:19:45,161 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2018-01-24 20:19:45,161 INFO L87 Difference]: Start difference. First operand 379 states and 526 transitions. Second operand 10 states. [2018-01-24 20:19:45,460 WARN L146 SmtUtils]: Spent 112ms on a formula simplification. DAG size of input: 47 DAG size of output 35 [2018-01-24 20:19:45,632 WARN L146 SmtUtils]: Spent 109ms on a formula simplification. DAG size of input: 51 DAG size of output 39 [2018-01-24 20:19:46,215 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-24 20:19:46,216 INFO L93 Difference]: Finished difference Result 948 states and 1266 transitions. [2018-01-24 20:19:46,216 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2018-01-24 20:19:46,216 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 33 [2018-01-24 20:19:46,216 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-24 20:19:46,219 INFO L225 Difference]: With dead ends: 948 [2018-01-24 20:19:46,219 INFO L226 Difference]: Without dead ends: 605 [2018-01-24 20:19:46,220 INFO L525 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=83, Invalid=189, Unknown=0, NotChecked=0, Total=272 [2018-01-24 20:19:46,221 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 605 states. [2018-01-24 20:19:46,240 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 605 to 396. [2018-01-24 20:19:46,241 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 396 states. [2018-01-24 20:19:46,242 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 396 states to 396 states and 548 transitions. [2018-01-24 20:19:46,243 INFO L78 Accepts]: Start accepts. Automaton has 396 states and 548 transitions. Word has length 33 [2018-01-24 20:19:46,243 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-24 20:19:46,243 INFO L432 AbstractCegarLoop]: Abstraction has 396 states and 548 transitions. [2018-01-24 20:19:46,243 INFO L433 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-01-24 20:19:46,243 INFO L276 IsEmpty]: Start isEmpty. Operand 396 states and 548 transitions. [2018-01-24 20:19:46,244 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2018-01-24 20:19:46,244 INFO L314 BasicCegarLoop]: Found error trace [2018-01-24 20:19:46,244 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] [2018-01-24 20:19:46,244 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]=== [2018-01-24 20:19:46,245 INFO L82 PathProgramCache]: Analyzing trace with hash 768774257, now seen corresponding path program 1 times [2018-01-24 20:19:46,245 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-24 20:19:46,246 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 20:19:46,246 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-24 20:19:46,246 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 20:19:46,246 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-24 20:19:46,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-24 20:19:46,259 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-24 20:19:46,770 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-24 20:19:46,771 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-01-24 20:19:46,771 INFO L187 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-01-24 20:19:46,772 INFO L199 CegarAbsIntRunner]: Running AI on error trace of length 35 with the following transitions: [2018-01-24 20:19:46,774 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] [2018-01-24 20:19:46,824 INFO L147 AbstractInterpreter]: Using domain VPDomain [2018-01-24 20:19:46,824 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