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.epf -i ../../../trunk/examples/svcomp/memsafety-ext/tree_of_cslls_true-valid-memsafety.i -------------------------------------------------------------------------------- This is Ultimate 0.1.23-6b94a2f [2018-01-24 15:37:59,189 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-01-24 15:37:59,191 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-01-24 15:37:59,204 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-01-24 15:37:59,204 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-01-24 15:37:59,205 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-01-24 15:37:59,206 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-01-24 15:37:59,208 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-01-24 15:37:59,210 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-01-24 15:37:59,211 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-01-24 15:37:59,212 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-01-24 15:37:59,212 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-01-24 15:37:59,212 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-01-24 15:37:59,213 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-01-24 15:37:59,214 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-01-24 15:37:59,217 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-01-24 15:37:59,219 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-01-24 15:37:59,221 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-01-24 15:37:59,222 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-01-24 15:37:59,223 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-01-24 15:37:59,225 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-01-24 15:37:59,226 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-01-24 15:37:59,226 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-01-24 15:37:59,227 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-01-24 15:37:59,228 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-01-24 15:37:59,229 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-01-24 15:37:59,229 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-01-24 15:37:59,230 INFO L177 SettingsManager]: PEA to Boogie provides no preferences, ignoring... [2018-01-24 15:37:59,230 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-01-24 15:37:59,230 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-01-24 15:37:59,231 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-01-24 15:37:59,231 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.epf [2018-01-24 15:37:59,241 INFO L110 SettingsManager]: Loading preferences was successful [2018-01-24 15:37:59,242 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-01-24 15:37:59,242 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-01-24 15:37:59,243 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-01-24 15:37:59,243 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-01-24 15:37:59,243 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=VPDomain [2018-01-24 15:37:59,243 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-01-24 15:37:59,244 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-01-24 15:37:59,244 INFO L133 SettingsManager]: * sizeof long=4 [2018-01-24 15:37:59,244 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-01-24 15:37:59,245 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-01-24 15:37:59,245 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-01-24 15:37:59,245 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-01-24 15:37:59,245 INFO L133 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2018-01-24 15:37:59,245 INFO L133 SettingsManager]: * Bitprecise bitfields=true [2018-01-24 15:37:59,245 INFO L133 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2018-01-24 15:37:59,246 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-01-24 15:37:59,246 INFO L133 SettingsManager]: * sizeof long double=12 [2018-01-24 15:37:59,246 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-01-24 15:37:59,246 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-01-24 15:37:59,246 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-01-24 15:37:59,247 INFO L133 SettingsManager]: * Add additional assume for each assert=false [2018-01-24 15:37:59,247 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-01-24 15:37:59,247 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-01-24 15:37:59,247 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-01-24 15:37:59,247 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-01-24 15:37:59,248 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-01-24 15:37:59,248 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-01-24 15:37:59,248 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-01-24 15:37:59,248 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-01-24 15:37:59,248 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-01-24 15:37:59,248 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-01-24 15:37:59,249 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-01-24 15:37:59,249 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-01-24 15:37:59,250 INFO L133 SettingsManager]: * TransformationType=HEAP_SEPARATOR [2018-01-24 15:37:59,284 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-01-24 15:37:59,294 INFO L266 ainManager$Toolchain]: [Toolchain 1]: Parser(s) successfully initialized [2018-01-24 15:37:59,297 INFO L222 ainManager$Toolchain]: [Toolchain 1]: Toolchain data selected. [2018-01-24 15:37:59,298 INFO L271 PluginConnector]: Initializing CDTParser... [2018-01-24 15:37:59,299 INFO L276 PluginConnector]: CDTParser initialized [2018-01-24 15:37:59,300 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/memsafety-ext/tree_of_cslls_true-valid-memsafety.i [2018-01-24 15:37:59,468 INFO L304 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-01-24 15:37:59,475 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-01-24 15:37:59,476 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-01-24 15:37:59,476 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-01-24 15:37:59,483 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-01-24 15:37:59,484 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.01 03:37:59" (1/1) ... [2018-01-24 15:37:59,487 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@48f31c6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 03:37:59, skipping insertion in model container [2018-01-24 15:37:59,487 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.01 03:37:59" (1/1) ... [2018-01-24 15:37:59,506 INFO L153 Dispatcher]: Using SV-COMP mode [2018-01-24 15:37:59,549 INFO L153 Dispatcher]: Using SV-COMP mode [2018-01-24 15:37:59,676 INFO L450 PostProcessor]: Settings: Checked method=main [2018-01-24 15:37:59,704 INFO L450 PostProcessor]: Settings: Checked method=main [2018-01-24 15:37:59,715 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 03:37:59 WrapperNode [2018-01-24 15:37:59,716 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-01-24 15:37:59,717 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-01-24 15:37:59,717 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-01-24 15:37:59,717 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-01-24 15:37:59,730 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 03:37:59" (1/1) ... [2018-01-24 15:37:59,731 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 03:37:59" (1/1) ... [2018-01-24 15:37:59,744 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 03:37:59" (1/1) ... [2018-01-24 15:37:59,744 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 03:37:59" (1/1) ... [2018-01-24 15:37:59,753 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 03:37:59" (1/1) ... [2018-01-24 15:37:59,757 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 03:37:59" (1/1) ... [2018-01-24 15:37:59,759 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 03:37:59" (1/1) ... [2018-01-24 15:37:59,761 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-01-24 15:37:59,762 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-01-24 15:37:59,762 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-01-24 15:37:59,762 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-01-24 15:37:59,763 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 03:37:59" (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 15:37:59,808 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-01-24 15:37:59,808 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-01-24 15:37:59,808 INFO L136 BoogieDeclarations]: Found implementation of procedure main [2018-01-24 15:37:59,808 INFO L128 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2018-01-24 15:37:59,809 INFO L128 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2018-01-24 15:37:59,809 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.free [2018-01-24 15:37:59,809 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-01-24 15:37:59,809 INFO L128 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-01-24 15:37:59,809 INFO L128 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2018-01-24 15:37:59,809 INFO L128 BoogieDeclarations]: Found specification of procedure malloc [2018-01-24 15:37:59,810 INFO L128 BoogieDeclarations]: Found specification of procedure free [2018-01-24 15:37:59,810 INFO L128 BoogieDeclarations]: Found specification of procedure main [2018-01-24 15:37:59,810 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-01-24 15:37:59,810 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-01-24 15:38:00,472 INFO L257 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-01-24 15:38:00,473 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.01 03:38:00 BoogieIcfgContainer [2018-01-24 15:38:00,473 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-01-24 15:38:00,474 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-01-24 15:38:00,474 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-01-24 15:38:00,477 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-01-24 15:38:00,477 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.01 03:37:59" (1/3) ... [2018-01-24 15:38:00,479 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@11b578bd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.01 03:38:00, skipping insertion in model container [2018-01-24 15:38:00,479 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 03:37:59" (2/3) ... [2018-01-24 15:38:00,479 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@11b578bd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.01 03:38:00, skipping insertion in model container [2018-01-24 15:38:00,480 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.01 03:38:00" (3/3) ... [2018-01-24 15:38:00,482 INFO L105 eAbstractionObserver]: Analyzing ICFG tree_of_cslls_true-valid-memsafety.i [2018-01-24 15:38:00,493 INFO L130 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-01-24 15:38:00,502 INFO L142 ceAbstractionStarter]: Appying trace abstraction to program that has 101 error locations. [2018-01-24 15:38:00,558 INFO L322 AbstractCegarLoop]: Interprodecural is true [2018-01-24 15:38:00,558 INFO L323 AbstractCegarLoop]: Hoare is true [2018-01-24 15:38:00,559 INFO L324 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-01-24 15:38:00,559 INFO L325 AbstractCegarLoop]: Backedges is TWOTRACK [2018-01-24 15:38:00,559 INFO L326 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-01-24 15:38:00,559 INFO L327 AbstractCegarLoop]: Difference is false [2018-01-24 15:38:00,559 INFO L328 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-01-24 15:38:00,559 INFO L333 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-01-24 15:38:00,560 INFO L87 2NestedWordAutomaton]: Mode: main mode - execution starts in main procedure [2018-01-24 15:38:00,588 INFO L276 IsEmpty]: Start isEmpty. Operand 220 states. [2018-01-24 15:38:00,595 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2018-01-24 15:38:00,595 INFO L314 BasicCegarLoop]: Found error trace [2018-01-24 15:38:00,596 INFO L322 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2018-01-24 15:38:00,597 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 15:38:00,602 INFO L82 PathProgramCache]: Analyzing trace with hash -1603684078, now seen corresponding path program 1 times [2018-01-24 15:38:00,605 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-24 15:38:00,648 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 15:38:00,649 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-24 15:38:00,649 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 15:38:00,649 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-24 15:38:00,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-24 15:38:00,695 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-24 15:38:00,781 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 15:38:00,783 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-24 15:38:00,783 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-01-24 15:38:00,783 INFO L252 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-01-24 15:38:00,786 INFO L409 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-01-24 15:38:00,796 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-01-24 15:38:00,797 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-01-24 15:38:00,799 INFO L87 Difference]: Start difference. First operand 220 states. Second operand 4 states. [2018-01-24 15:38:01,300 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-24 15:38:01,301 INFO L93 Difference]: Finished difference Result 503 states and 561 transitions. [2018-01-24 15:38:01,301 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-01-24 15:38:01,302 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 8 [2018-01-24 15:38:01,303 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-24 15:38:01,318 INFO L225 Difference]: With dead ends: 503 [2018-01-24 15:38:01,318 INFO L226 Difference]: Without dead ends: 321 [2018-01-24 15:38:01,323 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 15:38:01,339 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 321 states. [2018-01-24 15:38:01,372 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 321 to 208. [2018-01-24 15:38:01,373 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 208 states. [2018-01-24 15:38:01,376 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 208 states to 208 states and 224 transitions. [2018-01-24 15:38:01,378 INFO L78 Accepts]: Start accepts. Automaton has 208 states and 224 transitions. Word has length 8 [2018-01-24 15:38:01,378 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-24 15:38:01,378 INFO L432 AbstractCegarLoop]: Abstraction has 208 states and 224 transitions. [2018-01-24 15:38:01,379 INFO L433 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-01-24 15:38:01,379 INFO L276 IsEmpty]: Start isEmpty. Operand 208 states and 224 transitions. [2018-01-24 15:38:01,379 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2018-01-24 15:38:01,379 INFO L314 BasicCegarLoop]: Found error trace [2018-01-24 15:38:01,379 INFO L322 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2018-01-24 15:38:01,379 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 15:38:01,380 INFO L82 PathProgramCache]: Analyzing trace with hash -1603684077, now seen corresponding path program 1 times [2018-01-24 15:38:01,380 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-24 15:38:01,381 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 15:38:01,381 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-24 15:38:01,381 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 15:38:01,381 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-24 15:38:01,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-24 15:38:01,401 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-24 15:38:01,459 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 15:38:01,459 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-24 15:38:01,459 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-01-24 15:38:01,459 INFO L252 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-01-24 15:38:01,461 INFO L409 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-01-24 15:38:01,461 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-01-24 15:38:01,461 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-01-24 15:38:01,461 INFO L87 Difference]: Start difference. First operand 208 states and 224 transitions. Second operand 4 states. [2018-01-24 15:38:01,690 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-24 15:38:01,690 INFO L93 Difference]: Finished difference Result 208 states and 224 transitions. [2018-01-24 15:38:01,691 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-01-24 15:38:01,691 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 8 [2018-01-24 15:38:01,691 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-24 15:38:01,693 INFO L225 Difference]: With dead ends: 208 [2018-01-24 15:38:01,694 INFO L226 Difference]: Without dead ends: 206 [2018-01-24 15:38:01,695 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 15:38:01,695 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 206 states. [2018-01-24 15:38:01,705 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 206 to 206. [2018-01-24 15:38:01,705 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 206 states. [2018-01-24 15:38:01,707 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 206 states to 206 states and 222 transitions. [2018-01-24 15:38:01,707 INFO L78 Accepts]: Start accepts. Automaton has 206 states and 222 transitions. Word has length 8 [2018-01-24 15:38:01,708 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-24 15:38:01,708 INFO L432 AbstractCegarLoop]: Abstraction has 206 states and 222 transitions. [2018-01-24 15:38:01,708 INFO L433 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-01-24 15:38:01,708 INFO L276 IsEmpty]: Start isEmpty. Operand 206 states and 222 transitions. [2018-01-24 15:38:01,708 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2018-01-24 15:38:01,708 INFO L314 BasicCegarLoop]: Found error trace [2018-01-24 15:38:01,709 INFO L322 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-24 15:38:01,709 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 15:38:01,709 INFO L82 PathProgramCache]: Analyzing trace with hash 1863813244, now seen corresponding path program 1 times [2018-01-24 15:38:01,709 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-24 15:38:01,710 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 15:38:01,710 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-24 15:38:01,711 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 15:38:01,711 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-24 15:38:01,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-24 15:38:01,732 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-24 15:38:01,792 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 15:38:01,792 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-24 15:38:01,792 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-01-24 15:38:01,792 INFO L252 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-01-24 15:38:01,793 INFO L409 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-01-24 15:38:01,793 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-01-24 15:38:01,793 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2018-01-24 15:38:01,793 INFO L87 Difference]: Start difference. First operand 206 states and 222 transitions. Second operand 5 states. [2018-01-24 15:38:02,186 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-24 15:38:02,186 INFO L93 Difference]: Finished difference Result 362 states and 390 transitions. [2018-01-24 15:38:02,226 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-01-24 15:38:02,226 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 11 [2018-01-24 15:38:02,226 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-24 15:38:02,228 INFO L225 Difference]: With dead ends: 362 [2018-01-24 15:38:02,228 INFO L226 Difference]: Without dead ends: 355 [2018-01-24 15:38:02,229 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 15:38:02,230 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 355 states. [2018-01-24 15:38:02,240 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 355 to 199. [2018-01-24 15:38:02,240 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 199 states. [2018-01-24 15:38:02,242 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 199 states to 199 states and 215 transitions. [2018-01-24 15:38:02,243 INFO L78 Accepts]: Start accepts. Automaton has 199 states and 215 transitions. Word has length 11 [2018-01-24 15:38:02,243 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-24 15:38:02,243 INFO L432 AbstractCegarLoop]: Abstraction has 199 states and 215 transitions. [2018-01-24 15:38:02,243 INFO L433 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-01-24 15:38:02,243 INFO L276 IsEmpty]: Start isEmpty. Operand 199 states and 215 transitions. [2018-01-24 15:38:02,244 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2018-01-24 15:38:02,244 INFO L314 BasicCegarLoop]: Found error trace [2018-01-24 15:38:02,244 INFO L322 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-24 15:38:02,245 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 15:38:02,245 INFO L82 PathProgramCache]: Analyzing trace with hash -476893285, now seen corresponding path program 1 times [2018-01-24 15:38:02,245 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-24 15:38:02,246 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 15:38:02,246 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-24 15:38:02,247 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 15:38:02,247 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-24 15:38:02,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-24 15:38:02,263 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-24 15:38:02,309 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 15:38:02,310 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-24 15:38:02,310 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-01-24 15:38:02,310 INFO L252 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-01-24 15:38:02,310 INFO L409 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-01-24 15:38:02,310 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-01-24 15:38:02,311 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-01-24 15:38:02,311 INFO L87 Difference]: Start difference. First operand 199 states and 215 transitions. Second operand 5 states. [2018-01-24 15:38:02,598 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-24 15:38:02,598 INFO L93 Difference]: Finished difference Result 275 states and 297 transitions. [2018-01-24 15:38:02,598 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-01-24 15:38:02,598 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 14 [2018-01-24 15:38:02,599 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-24 15:38:02,600 INFO L225 Difference]: With dead ends: 275 [2018-01-24 15:38:02,600 INFO L226 Difference]: Without dead ends: 274 [2018-01-24 15:38:02,601 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 15:38:02,601 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 274 states. [2018-01-24 15:38:02,609 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 274 to 198. [2018-01-24 15:38:02,610 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 198 states. [2018-01-24 15:38:02,611 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 198 states to 198 states and 214 transitions. [2018-01-24 15:38:02,611 INFO L78 Accepts]: Start accepts. Automaton has 198 states and 214 transitions. Word has length 14 [2018-01-24 15:38:02,611 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-24 15:38:02,611 INFO L432 AbstractCegarLoop]: Abstraction has 198 states and 214 transitions. [2018-01-24 15:38:02,611 INFO L433 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-01-24 15:38:02,612 INFO L276 IsEmpty]: Start isEmpty. Operand 198 states and 214 transitions. [2018-01-24 15:38:02,612 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2018-01-24 15:38:02,612 INFO L314 BasicCegarLoop]: Found error trace [2018-01-24 15:38:02,612 INFO L322 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-24 15:38:02,612 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 15:38:02,612 INFO L82 PathProgramCache]: Analyzing trace with hash -476893284, now seen corresponding path program 1 times [2018-01-24 15:38:02,612 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-24 15:38:02,613 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 15:38:02,613 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-24 15:38:02,613 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 15:38:02,613 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-24 15:38:02,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-24 15:38:02,628 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-24 15:38:02,695 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 15:38:02,695 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-24 15:38:02,695 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-01-24 15:38:02,696 INFO L252 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-01-24 15:38:02,696 INFO L409 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-01-24 15:38:02,696 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-01-24 15:38:02,696 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-01-24 15:38:02,697 INFO L87 Difference]: Start difference. First operand 198 states and 214 transitions. Second operand 5 states. [2018-01-24 15:38:02,982 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-24 15:38:02,982 INFO L93 Difference]: Finished difference Result 316 states and 346 transitions. [2018-01-24 15:38:02,982 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-01-24 15:38:02,982 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 14 [2018-01-24 15:38:02,983 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-24 15:38:02,984 INFO L225 Difference]: With dead ends: 316 [2018-01-24 15:38:02,985 INFO L226 Difference]: Without dead ends: 315 [2018-01-24 15:38:02,985 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 15:38:02,987 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 315 states. [2018-01-24 15:38:02,994 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 315 to 197. [2018-01-24 15:38:02,994 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 197 states. [2018-01-24 15:38:02,995 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 197 states to 197 states and 213 transitions. [2018-01-24 15:38:02,996 INFO L78 Accepts]: Start accepts. Automaton has 197 states and 213 transitions. Word has length 14 [2018-01-24 15:38:02,998 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-24 15:38:02,998 INFO L432 AbstractCegarLoop]: Abstraction has 197 states and 213 transitions. [2018-01-24 15:38:02,998 INFO L433 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-01-24 15:38:02,998 INFO L276 IsEmpty]: Start isEmpty. Operand 197 states and 213 transitions. [2018-01-24 15:38:02,999 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2018-01-24 15:38:02,999 INFO L314 BasicCegarLoop]: Found error trace [2018-01-24 15:38:02,999 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 15:38:02,999 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 15:38:03,000 INFO L82 PathProgramCache]: Analyzing trace with hash 1521405160, now seen corresponding path program 1 times [2018-01-24 15:38:03,000 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-24 15:38:03,001 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 15:38:03,001 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-24 15:38:03,001 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 15:38:03,001 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-24 15:38:03,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-24 15:38:03,020 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-24 15:38:03,193 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 15:38:03,194 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-24 15:38:03,194 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-01-24 15:38:03,194 INFO L252 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-01-24 15:38:03,194 INFO L409 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-01-24 15:38:03,195 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-01-24 15:38:03,195 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2018-01-24 15:38:03,195 INFO L87 Difference]: Start difference. First operand 197 states and 213 transitions. Second operand 8 states. [2018-01-24 15:38:03,927 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-24 15:38:03,928 INFO L93 Difference]: Finished difference Result 370 states and 406 transitions. [2018-01-24 15:38:03,928 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-01-24 15:38:03,928 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 22 [2018-01-24 15:38:03,928 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-24 15:38:03,930 INFO L225 Difference]: With dead ends: 370 [2018-01-24 15:38:03,931 INFO L226 Difference]: Without dead ends: 369 [2018-01-24 15:38:03,931 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 15:38:03,932 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 369 states. [2018-01-24 15:38:03,940 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 369 to 204. [2018-01-24 15:38:03,940 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 204 states. [2018-01-24 15:38:03,942 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 204 states to 204 states and 222 transitions. [2018-01-24 15:38:03,942 INFO L78 Accepts]: Start accepts. Automaton has 204 states and 222 transitions. Word has length 22 [2018-01-24 15:38:03,942 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-24 15:38:03,942 INFO L432 AbstractCegarLoop]: Abstraction has 204 states and 222 transitions. [2018-01-24 15:38:03,942 INFO L433 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-01-24 15:38:03,943 INFO L276 IsEmpty]: Start isEmpty. Operand 204 states and 222 transitions. [2018-01-24 15:38:03,943 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2018-01-24 15:38:03,943 INFO L314 BasicCegarLoop]: Found error trace [2018-01-24 15:38:03,944 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 15:38:03,944 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 15:38:03,944 INFO L82 PathProgramCache]: Analyzing trace with hash 1521405161, now seen corresponding path program 1 times [2018-01-24 15:38:03,944 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-24 15:38:03,945 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 15:38:03,945 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-24 15:38:03,946 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 15:38:03,946 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-24 15:38:03,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-24 15:38:03,964 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-24 15:38:04,136 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 15:38:04,137 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-24 15:38:04,137 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-01-24 15:38:04,137 INFO L252 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-01-24 15:38:04,137 INFO L409 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-01-24 15:38:04,137 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-01-24 15:38:04,137 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2018-01-24 15:38:04,138 INFO L87 Difference]: Start difference. First operand 204 states and 222 transitions. Second operand 8 states. [2018-01-24 15:38:04,878 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-24 15:38:04,879 INFO L93 Difference]: Finished difference Result 556 states and 612 transitions. [2018-01-24 15:38:04,879 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-01-24 15:38:04,879 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 22 [2018-01-24 15:38:04,879 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-24 15:38:04,882 INFO L225 Difference]: With dead ends: 556 [2018-01-24 15:38:04,882 INFO L226 Difference]: Without dead ends: 555 [2018-01-24 15:38:04,883 INFO L525 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=51, Invalid=105, Unknown=0, NotChecked=0, Total=156 [2018-01-24 15:38:04,884 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 555 states. [2018-01-24 15:38:04,893 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 555 to 204. [2018-01-24 15:38:04,893 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 204 states. [2018-01-24 15:38:04,895 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 204 states to 204 states and 221 transitions. [2018-01-24 15:38:04,895 INFO L78 Accepts]: Start accepts. Automaton has 204 states and 221 transitions. Word has length 22 [2018-01-24 15:38:04,895 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-24 15:38:04,895 INFO L432 AbstractCegarLoop]: Abstraction has 204 states and 221 transitions. [2018-01-24 15:38:04,895 INFO L433 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-01-24 15:38:04,896 INFO L276 IsEmpty]: Start isEmpty. Operand 204 states and 221 transitions. [2018-01-24 15:38:04,896 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2018-01-24 15:38:04,896 INFO L314 BasicCegarLoop]: Found error trace [2018-01-24 15:38:04,897 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 15:38:04,897 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 15:38:04,897 INFO L82 PathProgramCache]: Analyzing trace with hash -115400475, now seen corresponding path program 1 times [2018-01-24 15:38:04,897 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-24 15:38:04,898 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 15:38:04,898 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-24 15:38:04,898 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 15:38:04,898 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-24 15:38:04,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-24 15:38:04,910 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-24 15:38:04,949 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-24 15:38:04,950 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-24 15:38:04,950 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-01-24 15:38:04,950 INFO L252 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-01-24 15:38:04,950 INFO L409 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-01-24 15:38:04,950 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-01-24 15:38:04,951 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-01-24 15:38:04,951 INFO L87 Difference]: Start difference. First operand 204 states and 221 transitions. Second operand 4 states. [2018-01-24 15:38:05,176 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-24 15:38:05,176 INFO L93 Difference]: Finished difference Result 291 states and 324 transitions. [2018-01-24 15:38:05,176 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-01-24 15:38:05,176 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 23 [2018-01-24 15:38:05,177 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-24 15:38:05,178 INFO L225 Difference]: With dead ends: 291 [2018-01-24 15:38:05,178 INFO L226 Difference]: Without dead ends: 273 [2018-01-24 15:38:05,178 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 15:38:05,178 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 273 states. [2018-01-24 15:38:05,184 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 273 to 197. [2018-01-24 15:38:05,184 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 197 states. [2018-01-24 15:38:05,185 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 197 states to 197 states and 218 transitions. [2018-01-24 15:38:05,186 INFO L78 Accepts]: Start accepts. Automaton has 197 states and 218 transitions. Word has length 23 [2018-01-24 15:38:05,186 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-24 15:38:05,186 INFO L432 AbstractCegarLoop]: Abstraction has 197 states and 218 transitions. [2018-01-24 15:38:05,186 INFO L433 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-01-24 15:38:05,186 INFO L276 IsEmpty]: Start isEmpty. Operand 197 states and 218 transitions. [2018-01-24 15:38:05,186 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2018-01-24 15:38:05,186 INFO L314 BasicCegarLoop]: Found error trace [2018-01-24 15:38:05,187 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 15:38:05,187 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 15:38:05,187 INFO L82 PathProgramCache]: Analyzing trace with hash -115400474, now seen corresponding path program 1 times [2018-01-24 15:38:05,187 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-24 15:38:05,187 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 15:38:05,188 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-24 15:38:05,188 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 15:38:05,188 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-24 15:38:05,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-24 15:38:05,199 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-24 15:38:05,309 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 15:38:05,309 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-24 15:38:05,309 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-01-24 15:38:05,310 INFO L252 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-01-24 15:38:05,310 INFO L409 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-01-24 15:38:05,310 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-01-24 15:38:05,310 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2018-01-24 15:38:05,310 INFO L87 Difference]: Start difference. First operand 197 states and 218 transitions. Second operand 6 states. [2018-01-24 15:38:05,637 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-24 15:38:05,637 INFO L93 Difference]: Finished difference Result 483 states and 546 transitions. [2018-01-24 15:38:05,637 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-01-24 15:38:05,637 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 23 [2018-01-24 15:38:05,637 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-24 15:38:05,640 INFO L225 Difference]: With dead ends: 483 [2018-01-24 15:38:05,640 INFO L226 Difference]: Without dead ends: 464 [2018-01-24 15:38:05,640 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 15:38:05,641 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 464 states. [2018-01-24 15:38:05,651 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 464 to 346. [2018-01-24 15:38:05,651 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 346 states. [2018-01-24 15:38:05,653 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 346 states to 346 states and 473 transitions. [2018-01-24 15:38:05,653 INFO L78 Accepts]: Start accepts. Automaton has 346 states and 473 transitions. Word has length 23 [2018-01-24 15:38:05,654 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-24 15:38:05,654 INFO L432 AbstractCegarLoop]: Abstraction has 346 states and 473 transitions. [2018-01-24 15:38:05,654 INFO L433 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-01-24 15:38:05,654 INFO L276 IsEmpty]: Start isEmpty. Operand 346 states and 473 transitions. [2018-01-24 15:38:05,654 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2018-01-24 15:38:05,655 INFO L314 BasicCegarLoop]: Found error trace [2018-01-24 15:38:05,655 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 15:38:05,655 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 15:38:05,655 INFO L82 PathProgramCache]: Analyzing trace with hash -81080279, now seen corresponding path program 1 times [2018-01-24 15:38:05,655 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-24 15:38:05,656 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 15:38:05,656 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-24 15:38:05,656 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 15:38:05,656 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-24 15:38:05,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-24 15:38:05,668 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-24 15:38:05,761 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 15:38:05,761 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-24 15:38:05,761 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-01-24 15:38:05,762 INFO L252 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-01-24 15:38:05,762 INFO L409 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-01-24 15:38:05,762 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-01-24 15:38:05,762 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-01-24 15:38:05,762 INFO L87 Difference]: Start difference. First operand 346 states and 473 transitions. Second operand 4 states. [2018-01-24 15:38:06,313 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-24 15:38:06,313 INFO L93 Difference]: Finished difference Result 702 states and 999 transitions. [2018-01-24 15:38:06,313 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-01-24 15:38:06,313 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 23 [2018-01-24 15:38:06,314 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-24 15:38:06,317 INFO L225 Difference]: With dead ends: 702 [2018-01-24 15:38:06,317 INFO L226 Difference]: Without dead ends: 701 [2018-01-24 15:38:06,318 INFO L525 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-01-24 15:38:06,319 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 701 states. [2018-01-24 15:38:06,335 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 701 to 345. [2018-01-24 15:38:06,335 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 345 states. [2018-01-24 15:38:06,338 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 345 states to 345 states and 472 transitions. [2018-01-24 15:38:06,338 INFO L78 Accepts]: Start accepts. Automaton has 345 states and 472 transitions. Word has length 23 [2018-01-24 15:38:06,338 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-24 15:38:06,338 INFO L432 AbstractCegarLoop]: Abstraction has 345 states and 472 transitions. [2018-01-24 15:38:06,338 INFO L433 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-01-24 15:38:06,338 INFO L276 IsEmpty]: Start isEmpty. Operand 345 states and 472 transitions. [2018-01-24 15:38:06,339 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2018-01-24 15:38:06,339 INFO L314 BasicCegarLoop]: Found error trace [2018-01-24 15:38:06,339 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 15:38:06,340 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 15:38:06,340 INFO L82 PathProgramCache]: Analyzing trace with hash -81080280, now seen corresponding path program 1 times [2018-01-24 15:38:06,340 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-24 15:38:06,341 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 15:38:06,341 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-24 15:38:06,341 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 15:38:06,341 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-24 15:38:06,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-24 15:38:06,352 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-24 15:38:06,374 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 15:38:06,374 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-24 15:38:06,374 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-01-24 15:38:06,374 INFO L252 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-01-24 15:38:06,374 INFO L409 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-01-24 15:38:06,375 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-01-24 15:38:06,375 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-01-24 15:38:06,375 INFO L87 Difference]: Start difference. First operand 345 states and 472 transitions. Second operand 4 states. [2018-01-24 15:38:07,068 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-24 15:38:07,069 INFO L93 Difference]: Finished difference Result 863 states and 1197 transitions. [2018-01-24 15:38:07,069 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-01-24 15:38:07,069 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 23 [2018-01-24 15:38:07,069 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-24 15:38:07,072 INFO L225 Difference]: With dead ends: 863 [2018-01-24 15:38:07,072 INFO L226 Difference]: Without dead ends: 861 [2018-01-24 15:38:07,073 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 15:38:07,074 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 861 states. [2018-01-24 15:38:07,087 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 861 to 343. [2018-01-24 15:38:07,087 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 343 states. [2018-01-24 15:38:07,089 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 343 states to 343 states and 467 transitions. [2018-01-24 15:38:07,089 INFO L78 Accepts]: Start accepts. Automaton has 343 states and 467 transitions. Word has length 23 [2018-01-24 15:38:07,089 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-24 15:38:07,089 INFO L432 AbstractCegarLoop]: Abstraction has 343 states and 467 transitions. [2018-01-24 15:38:07,090 INFO L433 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-01-24 15:38:07,090 INFO L276 IsEmpty]: Start isEmpty. Operand 343 states and 467 transitions. [2018-01-24 15:38:07,090 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2018-01-24 15:38:07,091 INFO L314 BasicCegarLoop]: Found error trace [2018-01-24 15:38:07,091 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 15:38:07,091 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 15:38:07,091 INFO L82 PathProgramCache]: Analyzing trace with hash 771701702, now seen corresponding path program 1 times [2018-01-24 15:38:07,091 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-24 15:38:07,092 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 15:38:07,092 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-24 15:38:07,093 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 15:38:07,093 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-24 15:38:07,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-24 15:38:07,102 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-24 15:38:07,136 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 15:38:07,136 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-24 15:38:07,136 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-01-24 15:38:07,136 INFO L252 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-01-24 15:38:07,137 INFO L409 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-01-24 15:38:07,137 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-01-24 15:38:07,137 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-01-24 15:38:07,137 INFO L87 Difference]: Start difference. First operand 343 states and 467 transitions. Second operand 4 states. [2018-01-24 15:38:07,254 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-24 15:38:07,254 INFO L93 Difference]: Finished difference Result 416 states and 547 transitions. [2018-01-24 15:38:07,254 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-01-24 15:38:07,255 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 25 [2018-01-24 15:38:07,255 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-24 15:38:07,256 INFO L225 Difference]: With dead ends: 416 [2018-01-24 15:38:07,256 INFO L226 Difference]: Without dead ends: 413 [2018-01-24 15:38:07,257 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 15:38:07,257 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 413 states. [2018-01-24 15:38:07,270 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 413 to 382. [2018-01-24 15:38:07,270 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 382 states. [2018-01-24 15:38:07,271 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 382 states to 382 states and 541 transitions. [2018-01-24 15:38:07,272 INFO L78 Accepts]: Start accepts. Automaton has 382 states and 541 transitions. Word has length 25 [2018-01-24 15:38:07,272 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-24 15:38:07,272 INFO L432 AbstractCegarLoop]: Abstraction has 382 states and 541 transitions. [2018-01-24 15:38:07,272 INFO L433 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-01-24 15:38:07,273 INFO L276 IsEmpty]: Start isEmpty. Operand 382 states and 541 transitions. [2018-01-24 15:38:07,274 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2018-01-24 15:38:07,274 INFO L314 BasicCegarLoop]: Found error trace [2018-01-24 15:38:07,274 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 15:38:07,274 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 15:38:07,274 INFO L82 PathProgramCache]: Analyzing trace with hash -1690982226, now seen corresponding path program 1 times [2018-01-24 15:38:07,275 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-24 15:38:07,275 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 15:38:07,276 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-24 15:38:07,276 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 15:38:07,276 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-24 15:38:07,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-24 15:38:07,289 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-24 15:38:07,426 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 15:38:07,427 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-24 15:38:07,427 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2018-01-24 15:38:07,427 INFO L252 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-01-24 15:38:07,427 INFO L409 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-01-24 15:38:07,428 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-01-24 15:38:07,428 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2018-01-24 15:38:07,428 INFO L87 Difference]: Start difference. First operand 382 states and 541 transitions. Second operand 9 states. [2018-01-24 15:38:08,325 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-24 15:38:08,326 INFO L93 Difference]: Finished difference Result 1252 states and 1783 transitions. [2018-01-24 15:38:08,326 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2018-01-24 15:38:08,326 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 26 [2018-01-24 15:38:08,327 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-24 15:38:08,333 INFO L225 Difference]: With dead ends: 1252 [2018-01-24 15:38:08,333 INFO L226 Difference]: Without dead ends: 1251 [2018-01-24 15:38:08,334 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 15:38:08,335 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1251 states. [2018-01-24 15:38:08,358 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1251 to 381. [2018-01-24 15:38:08,358 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 381 states. [2018-01-24 15:38:08,361 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 381 states to 381 states and 540 transitions. [2018-01-24 15:38:08,361 INFO L78 Accepts]: Start accepts. Automaton has 381 states and 540 transitions. Word has length 26 [2018-01-24 15:38:08,361 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-24 15:38:08,361 INFO L432 AbstractCegarLoop]: Abstraction has 381 states and 540 transitions. [2018-01-24 15:38:08,361 INFO L433 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-01-24 15:38:08,362 INFO L276 IsEmpty]: Start isEmpty. Operand 381 states and 540 transitions. [2018-01-24 15:38:08,362 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2018-01-24 15:38:08,362 INFO L314 BasicCegarLoop]: Found error trace [2018-01-24 15:38:08,363 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 15:38:08,363 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 15:38:08,363 INFO L82 PathProgramCache]: Analyzing trace with hash -1690982225, now seen corresponding path program 1 times [2018-01-24 15:38:08,363 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-24 15:38:08,364 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 15:38:08,364 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-24 15:38:08,364 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 15:38:08,364 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-24 15:38:08,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-24 15:38:08,380 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-24 15:38:08,505 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 15:38:08,506 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-24 15:38:08,506 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2018-01-24 15:38:08,506 INFO L252 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-01-24 15:38:08,507 INFO L409 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-01-24 15:38:08,507 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-01-24 15:38:08,507 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2018-01-24 15:38:08,507 INFO L87 Difference]: Start difference. First operand 381 states and 540 transitions. Second operand 9 states. [2018-01-24 15:38:09,337 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-24 15:38:09,337 INFO L93 Difference]: Finished difference Result 1251 states and 1782 transitions. [2018-01-24 15:38:09,337 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2018-01-24 15:38:09,337 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 26 [2018-01-24 15:38:09,338 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-24 15:38:09,342 INFO L225 Difference]: With dead ends: 1251 [2018-01-24 15:38:09,343 INFO L226 Difference]: Without dead ends: 1250 [2018-01-24 15:38:09,343 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 15:38:09,345 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1250 states. [2018-01-24 15:38:09,366 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1250 to 380. [2018-01-24 15:38:09,366 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 380 states. [2018-01-24 15:38:09,368 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 380 states to 380 states and 539 transitions. [2018-01-24 15:38:09,369 INFO L78 Accepts]: Start accepts. Automaton has 380 states and 539 transitions. Word has length 26 [2018-01-24 15:38:09,369 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-24 15:38:09,369 INFO L432 AbstractCegarLoop]: Abstraction has 380 states and 539 transitions. [2018-01-24 15:38:09,369 INFO L433 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-01-24 15:38:09,369 INFO L276 IsEmpty]: Start isEmpty. Operand 380 states and 539 transitions. [2018-01-24 15:38:09,370 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2018-01-24 15:38:09,370 INFO L314 BasicCegarLoop]: Found error trace [2018-01-24 15:38:09,370 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 15:38:09,371 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 15:38:09,371 INFO L82 PathProgramCache]: Analyzing trace with hash -679017658, now seen corresponding path program 1 times [2018-01-24 15:38:09,371 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-24 15:38:09,372 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 15:38:09,372 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-24 15:38:09,372 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 15:38:09,372 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-24 15:38:09,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-24 15:38:09,383 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-24 15:38:09,400 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 15:38:09,400 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-24 15:38:09,400 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-01-24 15:38:09,400 INFO L252 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-01-24 15:38:09,401 INFO L409 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-01-24 15:38:09,401 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-01-24 15:38:09,401 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-01-24 15:38:09,401 INFO L87 Difference]: Start difference. First operand 380 states and 539 transitions. Second operand 3 states. [2018-01-24 15:38:09,419 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-24 15:38:09,420 INFO L93 Difference]: Finished difference Result 589 states and 875 transitions. [2018-01-24 15:38:09,420 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-01-24 15:38:09,420 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 30 [2018-01-24 15:38:09,420 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-24 15:38:09,422 INFO L225 Difference]: With dead ends: 589 [2018-01-24 15:38:09,422 INFO L226 Difference]: Without dead ends: 384 [2018-01-24 15:38:09,424 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 15:38:09,424 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 384 states. [2018-01-24 15:38:09,440 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 384 to 384. [2018-01-24 15:38:09,440 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 384 states. [2018-01-24 15:38:09,442 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 384 states to 384 states and 543 transitions. [2018-01-24 15:38:09,443 INFO L78 Accepts]: Start accepts. Automaton has 384 states and 543 transitions. Word has length 30 [2018-01-24 15:38:09,443 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-24 15:38:09,443 INFO L432 AbstractCegarLoop]: Abstraction has 384 states and 543 transitions. [2018-01-24 15:38:09,443 INFO L433 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-01-24 15:38:09,443 INFO L276 IsEmpty]: Start isEmpty. Operand 384 states and 543 transitions. [2018-01-24 15:38:09,444 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2018-01-24 15:38:09,444 INFO L314 BasicCegarLoop]: Found error trace [2018-01-24 15:38:09,444 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 15:38:09,445 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 15:38:09,445 INFO L82 PathProgramCache]: Analyzing trace with hash 1240786582, now seen corresponding path program 1 times [2018-01-24 15:38:09,445 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-24 15:38:09,446 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 15:38:09,446 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-24 15:38:09,446 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 15:38:09,446 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-24 15:38:09,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-24 15:38:09,455 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-24 15:38:09,470 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 15:38:09,471 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-24 15:38:09,471 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-01-24 15:38:09,471 INFO L252 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-01-24 15:38:09,471 INFO L409 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-01-24 15:38:09,471 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-01-24 15:38:09,471 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-01-24 15:38:09,472 INFO L87 Difference]: Start difference. First operand 384 states and 543 transitions. Second operand 3 states. [2018-01-24 15:38:09,486 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-24 15:38:09,487 INFO L93 Difference]: Finished difference Result 735 states and 1054 transitions. [2018-01-24 15:38:09,487 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-01-24 15:38:09,487 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 31 [2018-01-24 15:38:09,487 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-24 15:38:09,489 INFO L225 Difference]: With dead ends: 735 [2018-01-24 15:38:09,489 INFO L226 Difference]: Without dead ends: 387 [2018-01-24 15:38:09,490 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 15:38:09,490 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 387 states. [2018-01-24 15:38:09,500 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 387 to 387. [2018-01-24 15:38:09,500 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 387 states. [2018-01-24 15:38:09,501 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 387 states to 387 states and 546 transitions. [2018-01-24 15:38:09,501 INFO L78 Accepts]: Start accepts. Automaton has 387 states and 546 transitions. Word has length 31 [2018-01-24 15:38:09,501 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-24 15:38:09,502 INFO L432 AbstractCegarLoop]: Abstraction has 387 states and 546 transitions. [2018-01-24 15:38:09,502 INFO L433 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-01-24 15:38:09,502 INFO L276 IsEmpty]: Start isEmpty. Operand 387 states and 546 transitions. [2018-01-24 15:38:09,502 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2018-01-24 15:38:09,502 INFO L314 BasicCegarLoop]: Found error trace [2018-01-24 15:38:09,502 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 15:38:09,502 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 15:38:09,503 INFO L82 PathProgramCache]: Analyzing trace with hash 348971873, now seen corresponding path program 1 times [2018-01-24 15:38:09,503 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-24 15:38:09,503 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 15:38:09,503 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-24 15:38:09,503 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 15:38:09,504 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-24 15:38:09,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-24 15:38:09,511 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-24 15:38:09,528 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 15:38:09,529 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-24 15:38:09,529 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-01-24 15:38:09,529 INFO L252 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-01-24 15:38:09,529 INFO L409 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-01-24 15:38:09,529 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-01-24 15:38:09,529 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-01-24 15:38:09,529 INFO L87 Difference]: Start difference. First operand 387 states and 546 transitions. Second operand 3 states. [2018-01-24 15:38:09,569 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-24 15:38:09,569 INFO L93 Difference]: Finished difference Result 637 states and 909 transitions. [2018-01-24 15:38:09,569 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-01-24 15:38:09,569 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 32 [2018-01-24 15:38:09,570 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-24 15:38:09,571 INFO L225 Difference]: With dead ends: 637 [2018-01-24 15:38:09,571 INFO L226 Difference]: Without dead ends: 428 [2018-01-24 15:38:09,572 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 15:38:09,572 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 428 states. [2018-01-24 15:38:09,583 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 428 to 379. [2018-01-24 15:38:09,583 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 379 states. [2018-01-24 15:38:09,584 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 379 states to 379 states and 526 transitions. [2018-01-24 15:38:09,584 INFO L78 Accepts]: Start accepts. Automaton has 379 states and 526 transitions. Word has length 32 [2018-01-24 15:38:09,584 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-24 15:38:09,584 INFO L432 AbstractCegarLoop]: Abstraction has 379 states and 526 transitions. [2018-01-24 15:38:09,584 INFO L433 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-01-24 15:38:09,584 INFO L276 IsEmpty]: Start isEmpty. Operand 379 states and 526 transitions. [2018-01-24 15:38:09,585 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2018-01-24 15:38:09,585 INFO L314 BasicCegarLoop]: Found error trace [2018-01-24 15:38:09,585 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 15:38:09,585 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 15:38:09,585 INFO L82 PathProgramCache]: Analyzing trace with hash 1663635795, now seen corresponding path program 1 times [2018-01-24 15:38:09,586 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-24 15:38:09,586 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 15:38:09,586 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-24 15:38:09,586 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 15:38:09,586 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-24 15:38:09,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-24 15:38:09,595 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-24 15:38:09,900 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 15:38:09,900 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-24 15:38:09,901 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2018-01-24 15:38:09,901 INFO L252 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-01-24 15:38:09,901 INFO L409 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-01-24 15:38:09,901 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-01-24 15:38:09,901 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2018-01-24 15:38:09,902 INFO L87 Difference]: Start difference. First operand 379 states and 526 transitions. Second operand 10 states. [2018-01-24 15:38:10,574 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-24 15:38:10,575 INFO L93 Difference]: Finished difference Result 948 states and 1266 transitions. [2018-01-24 15:38:10,575 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2018-01-24 15:38:10,575 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 33 [2018-01-24 15:38:10,575 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-24 15:38:10,577 INFO L225 Difference]: With dead ends: 948 [2018-01-24 15:38:10,577 INFO L226 Difference]: Without dead ends: 605 [2018-01-24 15:38:10,578 INFO L525 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=83, Invalid=189, Unknown=0, NotChecked=0, Total=272 [2018-01-24 15:38:10,578 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 605 states. [2018-01-24 15:38:10,590 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 605 to 396. [2018-01-24 15:38:10,590 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 396 states. [2018-01-24 15:38:10,591 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 396 states to 396 states and 548 transitions. [2018-01-24 15:38:10,591 INFO L78 Accepts]: Start accepts. Automaton has 396 states and 548 transitions. Word has length 33 [2018-01-24 15:38:10,592 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-24 15:38:10,592 INFO L432 AbstractCegarLoop]: Abstraction has 396 states and 548 transitions. [2018-01-24 15:38:10,592 INFO L433 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-01-24 15:38:10,592 INFO L276 IsEmpty]: Start isEmpty. Operand 396 states and 548 transitions. [2018-01-24 15:38:10,592 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2018-01-24 15:38:10,592 INFO L314 BasicCegarLoop]: Found error trace [2018-01-24 15:38:10,592 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 15:38:10,593 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 15:38:10,593 INFO L82 PathProgramCache]: Analyzing trace with hash 768774257, now seen corresponding path program 1 times [2018-01-24 15:38:10,593 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-24 15:38:10,593 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 15:38:10,594 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-24 15:38:10,594 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 15:38:10,594 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-24 15:38:10,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-24 15:38:10,605 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-24 15:38:10,901 WARN L146 SmtUtils]: Spent 116ms on a formula simplification. DAG size of input: 30 DAG size of output 25 [2018-01-24 15:38:11,110 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 15:38:11,110 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-01-24 15:38:11,110 INFO L187 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-01-24 15:38:11,111 INFO L199 CegarAbsIntRunner]: Running AI on error trace of length 35 with the following transitions: [2018-01-24 15:38:11,112 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 15:38:11,158 INFO L147 AbstractInterpreter]: Using domain VPDomain [2018-01-24 15:38:11,158 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