java -Xmx6000000000 -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data ./data --generate-csv --csv-dir ../../../releaseScripts/default/UAutomizer-linux/csv -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/ai/eq-bench/svcomp-DerefFreeMemtrack-32bit-Automizer_Taipan+AI_EQ_precise.epf -i ../../../trunk/examples/svcomp/memsafety-ext/tree_of_cslls_true-valid-memsafety.i -------------------------------------------------------------------------------- This is Ultimate 0.1.23-6b94a2f [2018-01-24 23:43:38,739 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-01-24 23:43:38,741 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-01-24 23:43:38,757 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-01-24 23:43:38,758 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-01-24 23:43:38,759 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-01-24 23:43:38,760 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-01-24 23:43:38,762 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-01-24 23:43:38,764 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-01-24 23:43:38,765 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-01-24 23:43:38,766 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-01-24 23:43:38,766 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-01-24 23:43:38,767 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-01-24 23:43:38,769 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-01-24 23:43:38,770 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-01-24 23:43:38,772 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-01-24 23:43:38,775 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-01-24 23:43:38,777 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-01-24 23:43:38,778 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-01-24 23:43:38,780 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-01-24 23:43:38,782 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-01-24 23:43:38,783 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-01-24 23:43:38,783 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-01-24 23:43:38,784 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-01-24 23:43:38,785 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-01-24 23:43:38,786 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-01-24 23:43:38,786 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-01-24 23:43:38,787 INFO L177 SettingsManager]: PEA to Boogie provides no preferences, ignoring... [2018-01-24 23:43:38,787 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-01-24 23:43:38,787 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-01-24 23:43:38,788 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-01-24 23:43:38,788 INFO L98 SettingsManager]: Beginning loading settings from /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/ai/eq-bench/svcomp-DerefFreeMemtrack-32bit-Automizer_Taipan+AI_EQ_precise.epf [2018-01-24 23:43:38,798 INFO L110 SettingsManager]: Loading preferences was successful [2018-01-24 23:43:38,798 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-01-24 23:43:38,799 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-01-24 23:43:38,799 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-01-24 23:43:38,800 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-01-24 23:43:38,800 INFO L133 SettingsManager]: * Weq Fattening=true [2018-01-24 23:43:38,800 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=VPDomain [2018-01-24 23:43:38,800 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-01-24 23:43:38,801 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-01-24 23:43:38,801 INFO L133 SettingsManager]: * sizeof long=4 [2018-01-24 23:43:38,801 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-01-24 23:43:38,801 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-01-24 23:43:38,801 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-01-24 23:43:38,802 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-01-24 23:43:38,802 INFO L133 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2018-01-24 23:43:38,802 INFO L133 SettingsManager]: * Bitprecise bitfields=true [2018-01-24 23:43:38,802 INFO L133 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2018-01-24 23:43:38,802 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-01-24 23:43:38,803 INFO L133 SettingsManager]: * sizeof long double=12 [2018-01-24 23:43:38,803 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-01-24 23:43:38,803 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-01-24 23:43:38,803 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-01-24 23:43:38,803 INFO L133 SettingsManager]: * Add additional assume for each assert=false [2018-01-24 23:43:38,804 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-01-24 23:43:38,804 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-01-24 23:43:38,804 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-01-24 23:43:38,804 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-01-24 23:43:38,804 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-01-24 23:43:38,805 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-01-24 23:43:38,805 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-01-24 23:43:38,805 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-01-24 23:43:38,805 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-01-24 23:43:38,805 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-01-24 23:43:38,805 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-01-24 23:43:38,806 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-01-24 23:43:38,807 INFO L133 SettingsManager]: * TransformationType=HEAP_SEPARATOR [2018-01-24 23:43:38,844 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-01-24 23:43:38,856 INFO L266 ainManager$Toolchain]: [Toolchain 1]: Parser(s) successfully initialized [2018-01-24 23:43:38,861 INFO L222 ainManager$Toolchain]: [Toolchain 1]: Toolchain data selected. [2018-01-24 23:43:38,862 INFO L271 PluginConnector]: Initializing CDTParser... [2018-01-24 23:43:38,863 INFO L276 PluginConnector]: CDTParser initialized [2018-01-24 23:43:38,864 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/memsafety-ext/tree_of_cslls_true-valid-memsafety.i [2018-01-24 23:43:39,046 INFO L304 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-01-24 23:43:39,051 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-01-24 23:43:39,052 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-01-24 23:43:39,052 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-01-24 23:43:39,058 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-01-24 23:43:39,059 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.01 11:43:39" (1/1) ... [2018-01-24 23:43:39,063 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@b8bf943 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 11:43:39, skipping insertion in model container [2018-01-24 23:43:39,063 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.01 11:43:39" (1/1) ... [2018-01-24 23:43:39,079 INFO L153 Dispatcher]: Using SV-COMP mode [2018-01-24 23:43:39,119 INFO L153 Dispatcher]: Using SV-COMP mode [2018-01-24 23:43:39,235 INFO L450 PostProcessor]: Settings: Checked method=main [2018-01-24 23:43:39,259 INFO L450 PostProcessor]: Settings: Checked method=main [2018-01-24 23:43:39,271 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 11:43:39 WrapperNode [2018-01-24 23:43:39,271 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-01-24 23:43:39,272 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-01-24 23:43:39,272 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-01-24 23:43:39,272 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-01-24 23:43:39,286 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 11:43:39" (1/1) ... [2018-01-24 23:43:39,287 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 11:43:39" (1/1) ... [2018-01-24 23:43:39,296 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 11:43:39" (1/1) ... [2018-01-24 23:43:39,297 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 11:43:39" (1/1) ... [2018-01-24 23:43:39,306 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 11:43:39" (1/1) ... [2018-01-24 23:43:39,310 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 11:43:39" (1/1) ... [2018-01-24 23:43:39,312 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 11:43:39" (1/1) ... [2018-01-24 23:43:39,314 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-01-24 23:43:39,314 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-01-24 23:43:39,314 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-01-24 23:43:39,314 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-01-24 23:43:39,315 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 11:43:39" (1/1) ... No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-01-24 23:43:39,361 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-01-24 23:43:39,362 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-01-24 23:43:39,362 INFO L136 BoogieDeclarations]: Found implementation of procedure main [2018-01-24 23:43:39,362 INFO L128 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2018-01-24 23:43:39,362 INFO L128 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2018-01-24 23:43:39,362 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.free [2018-01-24 23:43:39,362 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-01-24 23:43:39,362 INFO L128 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-01-24 23:43:39,363 INFO L128 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2018-01-24 23:43:39,363 INFO L128 BoogieDeclarations]: Found specification of procedure malloc [2018-01-24 23:43:39,363 INFO L128 BoogieDeclarations]: Found specification of procedure free [2018-01-24 23:43:39,363 INFO L128 BoogieDeclarations]: Found specification of procedure main [2018-01-24 23:43:39,363 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-01-24 23:43:39,363 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-01-24 23:43:40,075 INFO L257 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-01-24 23:43:40,076 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.01 11:43:40 BoogieIcfgContainer [2018-01-24 23:43:40,076 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-01-24 23:43:40,079 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-01-24 23:43:40,079 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-01-24 23:43:40,082 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-01-24 23:43:40,082 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.01 11:43:39" (1/3) ... [2018-01-24 23:43:40,083 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@62e77c6e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.01 11:43:40, skipping insertion in model container [2018-01-24 23:43:40,084 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 11:43:39" (2/3) ... [2018-01-24 23:43:40,084 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@62e77c6e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.01 11:43:40, skipping insertion in model container [2018-01-24 23:43:40,084 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.01 11:43:40" (3/3) ... [2018-01-24 23:43:40,086 INFO L105 eAbstractionObserver]: Analyzing ICFG tree_of_cslls_true-valid-memsafety.i [2018-01-24 23:43:40,096 INFO L130 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-01-24 23:43:40,105 INFO L142 ceAbstractionStarter]: Appying trace abstraction to program that has 101 error locations. [2018-01-24 23:43:40,152 INFO L322 AbstractCegarLoop]: Interprodecural is true [2018-01-24 23:43:40,152 INFO L323 AbstractCegarLoop]: Hoare is true [2018-01-24 23:43:40,152 INFO L324 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-01-24 23:43:40,153 INFO L325 AbstractCegarLoop]: Backedges is TWOTRACK [2018-01-24 23:43:40,153 INFO L326 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-01-24 23:43:40,153 INFO L327 AbstractCegarLoop]: Difference is false [2018-01-24 23:43:40,153 INFO L328 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-01-24 23:43:40,153 INFO L333 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-01-24 23:43:40,154 INFO L87 2NestedWordAutomaton]: Mode: main mode - execution starts in main procedure [2018-01-24 23:43:40,183 INFO L276 IsEmpty]: Start isEmpty. Operand 220 states. [2018-01-24 23:43:40,188 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2018-01-24 23:43:40,189 INFO L314 BasicCegarLoop]: Found error trace [2018-01-24 23:43:40,189 INFO L322 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2018-01-24 23:43:40,190 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 23:43:40,194 INFO L82 PathProgramCache]: Analyzing trace with hash -1603684078, now seen corresponding path program 1 times [2018-01-24 23:43:40,196 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-24 23:43:40,243 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 23:43:40,243 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-24 23:43:40,243 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 23:43:40,243 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-24 23:43:40,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-24 23:43:40,315 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-24 23:43:40,405 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-24 23:43:40,407 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-24 23:43:40,408 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-01-24 23:43:40,408 INFO L252 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-01-24 23:43:40,411 INFO L409 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-01-24 23:43:40,426 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-01-24 23:43:40,427 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-01-24 23:43:40,429 INFO L87 Difference]: Start difference. First operand 220 states. Second operand 4 states. [2018-01-24 23:43:40,970 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-24 23:43:40,971 INFO L93 Difference]: Finished difference Result 503 states and 561 transitions. [2018-01-24 23:43:40,971 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-01-24 23:43:40,972 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 8 [2018-01-24 23:43:40,972 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-24 23:43:40,984 INFO L225 Difference]: With dead ends: 503 [2018-01-24 23:43:40,984 INFO L226 Difference]: Without dead ends: 321 [2018-01-24 23:43:40,988 INFO L525 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-01-24 23:43:41,002 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 321 states. [2018-01-24 23:43:41,029 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 321 to 208. [2018-01-24 23:43:41,030 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 208 states. [2018-01-24 23:43:41,031 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 208 states to 208 states and 224 transitions. [2018-01-24 23:43:41,032 INFO L78 Accepts]: Start accepts. Automaton has 208 states and 224 transitions. Word has length 8 [2018-01-24 23:43:41,033 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-24 23:43:41,033 INFO L432 AbstractCegarLoop]: Abstraction has 208 states and 224 transitions. [2018-01-24 23:43:41,033 INFO L433 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-01-24 23:43:41,033 INFO L276 IsEmpty]: Start isEmpty. Operand 208 states and 224 transitions. [2018-01-24 23:43:41,033 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2018-01-24 23:43:41,033 INFO L314 BasicCegarLoop]: Found error trace [2018-01-24 23:43:41,034 INFO L322 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2018-01-24 23:43:41,034 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 23:43:41,034 INFO L82 PathProgramCache]: Analyzing trace with hash -1603684077, now seen corresponding path program 1 times [2018-01-24 23:43:41,034 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-24 23:43:41,035 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 23:43:41,035 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-24 23:43:41,035 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 23:43:41,035 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-24 23:43:41,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-24 23:43:41,057 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-24 23:43:41,124 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-24 23:43:41,125 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-24 23:43:41,125 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-01-24 23:43:41,125 INFO L252 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-01-24 23:43:41,126 INFO L409 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-01-24 23:43:41,126 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-01-24 23:43:41,126 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-01-24 23:43:41,127 INFO L87 Difference]: Start difference. First operand 208 states and 224 transitions. Second operand 4 states. [2018-01-24 23:43:41,353 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-24 23:43:41,353 INFO L93 Difference]: Finished difference Result 208 states and 224 transitions. [2018-01-24 23:43:41,354 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-01-24 23:43:41,354 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 8 [2018-01-24 23:43:41,354 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-24 23:43:41,356 INFO L225 Difference]: With dead ends: 208 [2018-01-24 23:43:41,356 INFO L226 Difference]: Without dead ends: 206 [2018-01-24 23:43:41,356 INFO L525 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-01-24 23:43:41,357 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 206 states. [2018-01-24 23:43:41,366 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 206 to 206. [2018-01-24 23:43:41,366 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 206 states. [2018-01-24 23:43:41,368 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 206 states to 206 states and 222 transitions. [2018-01-24 23:43:41,368 INFO L78 Accepts]: Start accepts. Automaton has 206 states and 222 transitions. Word has length 8 [2018-01-24 23:43:41,368 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-24 23:43:41,368 INFO L432 AbstractCegarLoop]: Abstraction has 206 states and 222 transitions. [2018-01-24 23:43:41,368 INFO L433 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-01-24 23:43:41,368 INFO L276 IsEmpty]: Start isEmpty. Operand 206 states and 222 transitions. [2018-01-24 23:43:41,369 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2018-01-24 23:43:41,369 INFO L314 BasicCegarLoop]: Found error trace [2018-01-24 23:43:41,369 INFO L322 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-24 23:43:41,369 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 23:43:41,370 INFO L82 PathProgramCache]: Analyzing trace with hash 1863813244, now seen corresponding path program 1 times [2018-01-24 23:43:41,370 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-24 23:43:41,371 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 23:43:41,371 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-24 23:43:41,371 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 23:43:41,371 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-24 23:43:41,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-24 23:43:41,393 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-24 23:43:41,461 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-24 23:43:41,462 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-24 23:43:41,462 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-01-24 23:43:41,462 INFO L252 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-01-24 23:43:41,462 INFO L409 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-01-24 23:43:41,462 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-01-24 23:43:41,462 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2018-01-24 23:43:41,463 INFO L87 Difference]: Start difference. First operand 206 states and 222 transitions. Second operand 5 states. [2018-01-24 23:43:41,837 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-24 23:43:41,838 INFO L93 Difference]: Finished difference Result 362 states and 390 transitions. [2018-01-24 23:43:41,838 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-01-24 23:43:41,838 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 11 [2018-01-24 23:43:41,838 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-24 23:43:41,841 INFO L225 Difference]: With dead ends: 362 [2018-01-24 23:43:41,841 INFO L226 Difference]: Without dead ends: 355 [2018-01-24 23:43:41,842 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 23:43:41,842 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 355 states. [2018-01-24 23:43:41,856 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 355 to 199. [2018-01-24 23:43:41,857 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 199 states. [2018-01-24 23:43:41,858 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 199 states to 199 states and 215 transitions. [2018-01-24 23:43:41,859 INFO L78 Accepts]: Start accepts. Automaton has 199 states and 215 transitions. Word has length 11 [2018-01-24 23:43:41,859 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-24 23:43:41,859 INFO L432 AbstractCegarLoop]: Abstraction has 199 states and 215 transitions. [2018-01-24 23:43:41,859 INFO L433 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-01-24 23:43:41,859 INFO L276 IsEmpty]: Start isEmpty. Operand 199 states and 215 transitions. [2018-01-24 23:43:41,860 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2018-01-24 23:43:41,860 INFO L314 BasicCegarLoop]: Found error trace [2018-01-24 23:43:41,860 INFO L322 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-24 23:43:41,860 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 23:43:41,861 INFO L82 PathProgramCache]: Analyzing trace with hash -476893285, now seen corresponding path program 1 times [2018-01-24 23:43:41,861 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-24 23:43:41,862 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 23:43:41,862 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-24 23:43:41,863 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 23:43:41,863 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-24 23:43:41,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-24 23:43:41,880 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-24 23:43:41,941 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-24 23:43:41,942 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-24 23:43:41,942 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-01-24 23:43:41,942 INFO L252 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-01-24 23:43:41,942 INFO L409 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-01-24 23:43:41,942 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-01-24 23:43:41,942 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-01-24 23:43:41,943 INFO L87 Difference]: Start difference. First operand 199 states and 215 transitions. Second operand 5 states. [2018-01-24 23:43:42,244 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-24 23:43:42,245 INFO L93 Difference]: Finished difference Result 275 states and 297 transitions. [2018-01-24 23:43:42,245 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-01-24 23:43:42,245 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 14 [2018-01-24 23:43:42,245 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-24 23:43:42,247 INFO L225 Difference]: With dead ends: 275 [2018-01-24 23:43:42,247 INFO L226 Difference]: Without dead ends: 274 [2018-01-24 23:43:42,248 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 23:43:42,248 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 274 states. [2018-01-24 23:43:42,256 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 274 to 198. [2018-01-24 23:43:42,256 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 198 states. [2018-01-24 23:43:42,257 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 198 states to 198 states and 214 transitions. [2018-01-24 23:43:42,258 INFO L78 Accepts]: Start accepts. Automaton has 198 states and 214 transitions. Word has length 14 [2018-01-24 23:43:42,258 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-24 23:43:42,258 INFO L432 AbstractCegarLoop]: Abstraction has 198 states and 214 transitions. [2018-01-24 23:43:42,258 INFO L433 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-01-24 23:43:42,258 INFO L276 IsEmpty]: Start isEmpty. Operand 198 states and 214 transitions. [2018-01-24 23:43:42,259 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2018-01-24 23:43:42,259 INFO L314 BasicCegarLoop]: Found error trace [2018-01-24 23:43:42,259 INFO L322 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-24 23:43:42,259 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 23:43:42,259 INFO L82 PathProgramCache]: Analyzing trace with hash -476893284, now seen corresponding path program 1 times [2018-01-24 23:43:42,260 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-24 23:43:42,260 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 23:43:42,261 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-24 23:43:42,261 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 23:43:42,261 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-24 23:43:42,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-24 23:43:42,272 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-24 23:43:42,351 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-24 23:43:42,351 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-24 23:43:42,351 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-01-24 23:43:42,351 INFO L252 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-01-24 23:43:42,352 INFO L409 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-01-24 23:43:42,352 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-01-24 23:43:42,352 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-01-24 23:43:42,352 INFO L87 Difference]: Start difference. First operand 198 states and 214 transitions. Second operand 5 states. [2018-01-24 23:43:42,632 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-24 23:43:42,632 INFO L93 Difference]: Finished difference Result 316 states and 346 transitions. [2018-01-24 23:43:42,633 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-01-24 23:43:42,633 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 14 [2018-01-24 23:43:42,633 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-24 23:43:42,635 INFO L225 Difference]: With dead ends: 316 [2018-01-24 23:43:42,635 INFO L226 Difference]: Without dead ends: 315 [2018-01-24 23:43:42,636 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 23:43:42,636 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 315 states. [2018-01-24 23:43:42,644 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 315 to 197. [2018-01-24 23:43:42,644 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 197 states. [2018-01-24 23:43:42,645 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 197 states to 197 states and 213 transitions. [2018-01-24 23:43:42,645 INFO L78 Accepts]: Start accepts. Automaton has 197 states and 213 transitions. Word has length 14 [2018-01-24 23:43:42,646 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-24 23:43:42,646 INFO L432 AbstractCegarLoop]: Abstraction has 197 states and 213 transitions. [2018-01-24 23:43:42,646 INFO L433 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-01-24 23:43:42,646 INFO L276 IsEmpty]: Start isEmpty. Operand 197 states and 213 transitions. [2018-01-24 23:43:42,647 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2018-01-24 23:43:42,647 INFO L314 BasicCegarLoop]: Found error trace [2018-01-24 23:43:42,647 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 23:43:42,647 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 23:43:42,647 INFO L82 PathProgramCache]: Analyzing trace with hash 1521405160, now seen corresponding path program 1 times [2018-01-24 23:43:42,648 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-24 23:43:42,648 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 23:43:42,649 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-24 23:43:42,649 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 23:43:42,649 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-24 23:43:42,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-24 23:43:42,669 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-24 23:43:42,852 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-24 23:43:42,852 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-24 23:43:42,852 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-01-24 23:43:42,852 INFO L252 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-01-24 23:43:42,853 INFO L409 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-01-24 23:43:42,853 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-01-24 23:43:42,853 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2018-01-24 23:43:42,853 INFO L87 Difference]: Start difference. First operand 197 states and 213 transitions. Second operand 8 states. [2018-01-24 23:43:43,739 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-24 23:43:43,740 INFO L93 Difference]: Finished difference Result 370 states and 406 transitions. [2018-01-24 23:43:43,740 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-01-24 23:43:43,740 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 22 [2018-01-24 23:43:43,740 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-24 23:43:43,742 INFO L225 Difference]: With dead ends: 370 [2018-01-24 23:43:43,743 INFO L226 Difference]: Without dead ends: 369 [2018-01-24 23:43:43,743 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 23:43:43,744 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 369 states. [2018-01-24 23:43:43,751 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 369 to 204. [2018-01-24 23:43:43,752 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 204 states. [2018-01-24 23:43:43,753 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 204 states to 204 states and 222 transitions. [2018-01-24 23:43:43,753 INFO L78 Accepts]: Start accepts. Automaton has 204 states and 222 transitions. Word has length 22 [2018-01-24 23:43:43,754 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-24 23:43:43,754 INFO L432 AbstractCegarLoop]: Abstraction has 204 states and 222 transitions. [2018-01-24 23:43:43,754 INFO L433 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-01-24 23:43:43,754 INFO L276 IsEmpty]: Start isEmpty. Operand 204 states and 222 transitions. [2018-01-24 23:43:43,755 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2018-01-24 23:43:43,755 INFO L314 BasicCegarLoop]: Found error trace [2018-01-24 23:43:43,755 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 23:43:43,755 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 23:43:43,755 INFO L82 PathProgramCache]: Analyzing trace with hash 1521405161, now seen corresponding path program 1 times [2018-01-24 23:43:43,756 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-24 23:43:43,757 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 23:43:43,757 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-24 23:43:43,757 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 23:43:43,757 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-24 23:43:43,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-24 23:43:43,777 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-24 23:43:43,926 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-24 23:43:43,926 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-24 23:43:43,926 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-01-24 23:43:43,926 INFO L252 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-01-24 23:43:43,926 INFO L409 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-01-24 23:43:43,927 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-01-24 23:43:43,927 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2018-01-24 23:43:43,927 INFO L87 Difference]: Start difference. First operand 204 states and 222 transitions. Second operand 8 states. [2018-01-24 23:43:44,659 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-24 23:43:44,659 INFO L93 Difference]: Finished difference Result 556 states and 612 transitions. [2018-01-24 23:43:44,659 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-01-24 23:43:44,660 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 22 [2018-01-24 23:43:44,660 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-24 23:43:44,663 INFO L225 Difference]: With dead ends: 556 [2018-01-24 23:43:44,663 INFO L226 Difference]: Without dead ends: 555 [2018-01-24 23:43:44,664 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 23:43:44,664 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 555 states. [2018-01-24 23:43:44,673 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 555 to 204. [2018-01-24 23:43:44,674 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 204 states. [2018-01-24 23:43:44,675 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 204 states to 204 states and 221 transitions. [2018-01-24 23:43:44,675 INFO L78 Accepts]: Start accepts. Automaton has 204 states and 221 transitions. Word has length 22 [2018-01-24 23:43:44,676 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-24 23:43:44,676 INFO L432 AbstractCegarLoop]: Abstraction has 204 states and 221 transitions. [2018-01-24 23:43:44,676 INFO L433 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-01-24 23:43:44,676 INFO L276 IsEmpty]: Start isEmpty. Operand 204 states and 221 transitions. [2018-01-24 23:43:44,677 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2018-01-24 23:43:44,677 INFO L314 BasicCegarLoop]: Found error trace [2018-01-24 23:43:44,677 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 23:43:44,677 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 23:43:44,677 INFO L82 PathProgramCache]: Analyzing trace with hash -115400475, now seen corresponding path program 1 times [2018-01-24 23:43:44,677 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-24 23:43:44,678 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 23:43:44,678 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-24 23:43:44,678 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 23:43:44,678 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-24 23:43:44,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-24 23:43:44,689 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-24 23:43:44,723 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-24 23:43:44,724 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-24 23:43:44,724 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-01-24 23:43:44,724 INFO L252 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-01-24 23:43:44,724 INFO L409 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-01-24 23:43:44,724 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-01-24 23:43:44,724 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-01-24 23:43:44,725 INFO L87 Difference]: Start difference. First operand 204 states and 221 transitions. Second operand 4 states. [2018-01-24 23:43:44,932 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-24 23:43:44,932 INFO L93 Difference]: Finished difference Result 291 states and 324 transitions. [2018-01-24 23:43:44,932 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-01-24 23:43:44,932 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 23 [2018-01-24 23:43:44,932 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-24 23:43:44,933 INFO L225 Difference]: With dead ends: 291 [2018-01-24 23:43:44,933 INFO L226 Difference]: Without dead ends: 273 [2018-01-24 23:43:44,934 INFO L525 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-01-24 23:43:44,934 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 273 states. [2018-01-24 23:43:44,940 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 273 to 197. [2018-01-24 23:43:44,940 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 197 states. [2018-01-24 23:43:44,941 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 197 states to 197 states and 218 transitions. [2018-01-24 23:43:44,941 INFO L78 Accepts]: Start accepts. Automaton has 197 states and 218 transitions. Word has length 23 [2018-01-24 23:43:44,941 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-24 23:43:44,941 INFO L432 AbstractCegarLoop]: Abstraction has 197 states and 218 transitions. [2018-01-24 23:43:44,941 INFO L433 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-01-24 23:43:44,941 INFO L276 IsEmpty]: Start isEmpty. Operand 197 states and 218 transitions. [2018-01-24 23:43:44,942 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2018-01-24 23:43:44,942 INFO L314 BasicCegarLoop]: Found error trace [2018-01-24 23:43:44,942 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 23:43:44,942 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 23:43:44,942 INFO L82 PathProgramCache]: Analyzing trace with hash -115400474, now seen corresponding path program 1 times [2018-01-24 23:43:44,942 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-24 23:43:44,943 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 23:43:44,943 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-24 23:43:44,943 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 23:43:44,943 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-24 23:43:44,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-24 23:43:44,954 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-24 23:43:45,066 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-24 23:43:45,067 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-24 23:43:45,067 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-01-24 23:43:45,067 INFO L252 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-01-24 23:43:45,067 INFO L409 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-01-24 23:43:45,067 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-01-24 23:43:45,067 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2018-01-24 23:43:45,067 INFO L87 Difference]: Start difference. First operand 197 states and 218 transitions. Second operand 6 states. [2018-01-24 23:43:45,350 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-24 23:43:45,350 INFO L93 Difference]: Finished difference Result 483 states and 546 transitions. [2018-01-24 23:43:45,350 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-01-24 23:43:45,350 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 23 [2018-01-24 23:43:45,351 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-24 23:43:45,353 INFO L225 Difference]: With dead ends: 483 [2018-01-24 23:43:45,353 INFO L226 Difference]: Without dead ends: 464 [2018-01-24 23:43:45,354 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 23:43:45,354 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 464 states. [2018-01-24 23:43:45,369 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 464 to 346. [2018-01-24 23:43:45,369 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 346 states. [2018-01-24 23:43:45,372 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 346 states to 346 states and 473 transitions. [2018-01-24 23:43:45,372 INFO L78 Accepts]: Start accepts. Automaton has 346 states and 473 transitions. Word has length 23 [2018-01-24 23:43:45,373 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-24 23:43:45,373 INFO L432 AbstractCegarLoop]: Abstraction has 346 states and 473 transitions. [2018-01-24 23:43:45,373 INFO L433 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-01-24 23:43:45,373 INFO L276 IsEmpty]: Start isEmpty. Operand 346 states and 473 transitions. [2018-01-24 23:43:45,374 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2018-01-24 23:43:45,374 INFO L314 BasicCegarLoop]: Found error trace [2018-01-24 23:43:45,374 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 23:43:45,374 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 23:43:45,374 INFO L82 PathProgramCache]: Analyzing trace with hash -81080279, now seen corresponding path program 1 times [2018-01-24 23:43:45,374 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-24 23:43:45,375 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 23:43:45,375 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-24 23:43:45,375 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 23:43:45,375 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-24 23:43:45,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-24 23:43:45,387 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-24 23:43:45,443 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-24 23:43:45,443 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-24 23:43:45,443 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-01-24 23:43:45,443 INFO L252 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-01-24 23:43:45,444 INFO L409 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-01-24 23:43:45,444 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-01-24 23:43:45,444 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-01-24 23:43:45,444 INFO L87 Difference]: Start difference. First operand 346 states and 473 transitions. Second operand 4 states. [2018-01-24 23:43:45,760 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-24 23:43:45,760 INFO L93 Difference]: Finished difference Result 702 states and 999 transitions. [2018-01-24 23:43:45,760 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-01-24 23:43:45,760 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 23 [2018-01-24 23:43:45,761 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-24 23:43:45,763 INFO L225 Difference]: With dead ends: 702 [2018-01-24 23:43:45,763 INFO L226 Difference]: Without dead ends: 701 [2018-01-24 23:43:45,764 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 23:43:45,765 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 701 states. [2018-01-24 23:43:45,785 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 701 to 345. [2018-01-24 23:43:45,785 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 345 states. [2018-01-24 23:43:45,787 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 345 states to 345 states and 472 transitions. [2018-01-24 23:43:45,788 INFO L78 Accepts]: Start accepts. Automaton has 345 states and 472 transitions. Word has length 23 [2018-01-24 23:43:45,788 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-24 23:43:45,788 INFO L432 AbstractCegarLoop]: Abstraction has 345 states and 472 transitions. [2018-01-24 23:43:45,788 INFO L433 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-01-24 23:43:45,789 INFO L276 IsEmpty]: Start isEmpty. Operand 345 states and 472 transitions. [2018-01-24 23:43:45,789 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2018-01-24 23:43:45,789 INFO L314 BasicCegarLoop]: Found error trace [2018-01-24 23:43:45,790 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 23:43:45,790 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 23:43:45,790 INFO L82 PathProgramCache]: Analyzing trace with hash -81080280, now seen corresponding path program 1 times [2018-01-24 23:43:45,790 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-24 23:43:45,791 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 23:43:45,791 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-24 23:43:45,791 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 23:43:45,792 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-24 23:43:45,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-24 23:43:45,803 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-24 23:43:45,830 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-24 23:43:45,831 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-24 23:43:45,831 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-01-24 23:43:45,831 INFO L252 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-01-24 23:43:45,831 INFO L409 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-01-24 23:43:45,832 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-01-24 23:43:45,832 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-01-24 23:43:45,832 INFO L87 Difference]: Start difference. First operand 345 states and 472 transitions. Second operand 4 states. [2018-01-24 23:43:46,468 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-24 23:43:46,468 INFO L93 Difference]: Finished difference Result 863 states and 1197 transitions. [2018-01-24 23:43:46,504 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-01-24 23:43:46,504 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 23 [2018-01-24 23:43:46,504 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-24 23:43:46,508 INFO L225 Difference]: With dead ends: 863 [2018-01-24 23:43:46,508 INFO L226 Difference]: Without dead ends: 861 [2018-01-24 23:43:46,509 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 23:43:46,510 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 861 states. [2018-01-24 23:43:46,527 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 861 to 343. [2018-01-24 23:43:46,527 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 343 states. [2018-01-24 23:43:46,529 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 343 states to 343 states and 467 transitions. [2018-01-24 23:43:46,529 INFO L78 Accepts]: Start accepts. Automaton has 343 states and 467 transitions. Word has length 23 [2018-01-24 23:43:46,530 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-24 23:43:46,530 INFO L432 AbstractCegarLoop]: Abstraction has 343 states and 467 transitions. [2018-01-24 23:43:46,530 INFO L433 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-01-24 23:43:46,530 INFO L276 IsEmpty]: Start isEmpty. Operand 343 states and 467 transitions. [2018-01-24 23:43:46,531 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2018-01-24 23:43:46,531 INFO L314 BasicCegarLoop]: Found error trace [2018-01-24 23:43:46,531 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 23:43:46,531 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 23:43:46,531 INFO L82 PathProgramCache]: Analyzing trace with hash 771701702, now seen corresponding path program 1 times [2018-01-24 23:43:46,532 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-24 23:43:46,532 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 23:43:46,532 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-24 23:43:46,533 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 23:43:46,533 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-24 23:43:46,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-24 23:43:46,541 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-24 23:43:46,578 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-24 23:43:46,579 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-24 23:43:46,579 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-01-24 23:43:46,579 INFO L252 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-01-24 23:43:46,579 INFO L409 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-01-24 23:43:46,579 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-01-24 23:43:46,580 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-01-24 23:43:46,580 INFO L87 Difference]: Start difference. First operand 343 states and 467 transitions. Second operand 4 states. [2018-01-24 23:43:46,628 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-24 23:43:46,629 INFO L93 Difference]: Finished difference Result 416 states and 547 transitions. [2018-01-24 23:43:46,629 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-01-24 23:43:46,629 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 25 [2018-01-24 23:43:46,629 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-24 23:43:46,631 INFO L225 Difference]: With dead ends: 416 [2018-01-24 23:43:46,631 INFO L226 Difference]: Without dead ends: 413 [2018-01-24 23:43:46,632 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 23:43:46,632 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 413 states. [2018-01-24 23:43:46,648 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 413 to 382. [2018-01-24 23:43:46,648 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 382 states. [2018-01-24 23:43:46,651 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 382 states to 382 states and 541 transitions. [2018-01-24 23:43:46,651 INFO L78 Accepts]: Start accepts. Automaton has 382 states and 541 transitions. Word has length 25 [2018-01-24 23:43:46,651 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-24 23:43:46,651 INFO L432 AbstractCegarLoop]: Abstraction has 382 states and 541 transitions. [2018-01-24 23:43:46,651 INFO L433 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-01-24 23:43:46,651 INFO L276 IsEmpty]: Start isEmpty. Operand 382 states and 541 transitions. [2018-01-24 23:43:46,652 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2018-01-24 23:43:46,652 INFO L314 BasicCegarLoop]: Found error trace [2018-01-24 23:43:46,653 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 23:43:46,653 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 23:43:46,653 INFO L82 PathProgramCache]: Analyzing trace with hash -1690982226, now seen corresponding path program 1 times [2018-01-24 23:43:46,653 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-24 23:43:46,654 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 23:43:46,654 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-24 23:43:46,654 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 23:43:46,654 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-24 23:43:46,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-24 23:43:46,668 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-24 23:43:46,785 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-24 23:43:46,785 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-24 23:43:46,786 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2018-01-24 23:43:46,786 INFO L252 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-01-24 23:43:46,786 INFO L409 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-01-24 23:43:46,786 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-01-24 23:43:46,786 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2018-01-24 23:43:46,787 INFO L87 Difference]: Start difference. First operand 382 states and 541 transitions. Second operand 9 states. [2018-01-24 23:43:47,933 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-24 23:43:47,933 INFO L93 Difference]: Finished difference Result 1252 states and 1783 transitions. [2018-01-24 23:43:47,934 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2018-01-24 23:43:47,934 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 26 [2018-01-24 23:43:47,934 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-24 23:43:47,940 INFO L225 Difference]: With dead ends: 1252 [2018-01-24 23:43:47,940 INFO L226 Difference]: Without dead ends: 1251 [2018-01-24 23:43:47,941 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 23:43:47,942 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1251 states. [2018-01-24 23:43:47,963 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1251 to 381. [2018-01-24 23:43:47,963 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 381 states. [2018-01-24 23:43:47,965 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 381 states to 381 states and 540 transitions. [2018-01-24 23:43:47,966 INFO L78 Accepts]: Start accepts. Automaton has 381 states and 540 transitions. Word has length 26 [2018-01-24 23:43:47,966 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-24 23:43:47,966 INFO L432 AbstractCegarLoop]: Abstraction has 381 states and 540 transitions. [2018-01-24 23:43:47,966 INFO L433 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-01-24 23:43:47,966 INFO L276 IsEmpty]: Start isEmpty. Operand 381 states and 540 transitions. [2018-01-24 23:43:47,967 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2018-01-24 23:43:47,967 INFO L314 BasicCegarLoop]: Found error trace [2018-01-24 23:43:47,967 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 23:43:47,967 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 23:43:47,968 INFO L82 PathProgramCache]: Analyzing trace with hash -1690982225, now seen corresponding path program 1 times [2018-01-24 23:43:47,968 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-24 23:43:47,968 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 23:43:47,969 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-24 23:43:47,969 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 23:43:47,969 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-24 23:43:47,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-24 23:43:47,982 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-24 23:43:48,134 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-24 23:43:48,135 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-24 23:43:48,135 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2018-01-24 23:43:48,135 INFO L252 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-01-24 23:43:48,135 INFO L409 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-01-24 23:43:48,136 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-01-24 23:43:48,136 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2018-01-24 23:43:48,136 INFO L87 Difference]: Start difference. First operand 381 states and 540 transitions. Second operand 9 states. [2018-01-24 23:43:48,978 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-24 23:43:48,978 INFO L93 Difference]: Finished difference Result 1251 states and 1782 transitions. [2018-01-24 23:43:48,978 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2018-01-24 23:43:48,978 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 26 [2018-01-24 23:43:48,979 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-24 23:43:48,984 INFO L225 Difference]: With dead ends: 1251 [2018-01-24 23:43:48,984 INFO L226 Difference]: Without dead ends: 1250 [2018-01-24 23:43:48,985 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 23:43:48,986 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1250 states. [2018-01-24 23:43:49,009 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1250 to 380. [2018-01-24 23:43:49,010 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 380 states. [2018-01-24 23:43:49,012 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 380 states to 380 states and 539 transitions. [2018-01-24 23:43:49,012 INFO L78 Accepts]: Start accepts. Automaton has 380 states and 539 transitions. Word has length 26 [2018-01-24 23:43:49,012 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-24 23:43:49,012 INFO L432 AbstractCegarLoop]: Abstraction has 380 states and 539 transitions. [2018-01-24 23:43:49,012 INFO L433 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-01-24 23:43:49,013 INFO L276 IsEmpty]: Start isEmpty. Operand 380 states and 539 transitions. [2018-01-24 23:43:49,013 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2018-01-24 23:43:49,013 INFO L314 BasicCegarLoop]: Found error trace [2018-01-24 23:43:49,014 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 23:43:49,014 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 23:43:49,014 INFO L82 PathProgramCache]: Analyzing trace with hash -679017658, now seen corresponding path program 1 times [2018-01-24 23:43:49,014 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-24 23:43:49,015 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 23:43:49,015 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-24 23:43:49,015 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 23:43:49,015 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-24 23:43:49,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-24 23:43:49,025 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-24 23:43:49,055 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-24 23:43:49,056 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-24 23:43:49,056 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-01-24 23:43:49,056 INFO L252 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-01-24 23:43:49,056 INFO L409 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-01-24 23:43:49,057 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-01-24 23:43:49,057 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-01-24 23:43:49,057 INFO L87 Difference]: Start difference. First operand 380 states and 539 transitions. Second operand 3 states. [2018-01-24 23:43:49,075 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-24 23:43:49,076 INFO L93 Difference]: Finished difference Result 589 states and 875 transitions. [2018-01-24 23:43:49,076 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-01-24 23:43:49,076 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 30 [2018-01-24 23:43:49,076 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-24 23:43:49,078 INFO L225 Difference]: With dead ends: 589 [2018-01-24 23:43:49,079 INFO L226 Difference]: Without dead ends: 384 [2018-01-24 23:43:49,080 INFO L525 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-01-24 23:43:49,080 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 384 states. [2018-01-24 23:43:49,096 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 384 to 384. [2018-01-24 23:43:49,097 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 384 states. [2018-01-24 23:43:49,099 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 384 states to 384 states and 543 transitions. [2018-01-24 23:43:49,099 INFO L78 Accepts]: Start accepts. Automaton has 384 states and 543 transitions. Word has length 30 [2018-01-24 23:43:49,099 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-24 23:43:49,099 INFO L432 AbstractCegarLoop]: Abstraction has 384 states and 543 transitions. [2018-01-24 23:43:49,099 INFO L433 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-01-24 23:43:49,100 INFO L276 IsEmpty]: Start isEmpty. Operand 384 states and 543 transitions. [2018-01-24 23:43:49,100 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2018-01-24 23:43:49,100 INFO L314 BasicCegarLoop]: Found error trace [2018-01-24 23:43:49,101 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 23:43:49,101 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 23:43:49,101 INFO L82 PathProgramCache]: Analyzing trace with hash 1240786582, now seen corresponding path program 1 times [2018-01-24 23:43:49,101 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-24 23:43:49,102 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 23:43:49,102 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-24 23:43:49,102 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 23:43:49,102 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-24 23:43:49,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-24 23:43:49,111 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-24 23:43:49,126 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 23:43:49,126 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-24 23:43:49,127 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-01-24 23:43:49,127 INFO L252 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-01-24 23:43:49,127 INFO L409 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-01-24 23:43:49,127 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-01-24 23:43:49,127 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-01-24 23:43:49,128 INFO L87 Difference]: Start difference. First operand 384 states and 543 transitions. Second operand 3 states. [2018-01-24 23:43:49,147 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-24 23:43:49,147 INFO L93 Difference]: Finished difference Result 735 states and 1054 transitions. [2018-01-24 23:43:49,147 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-01-24 23:43:49,147 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 31 [2018-01-24 23:43:49,147 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-24 23:43:49,149 INFO L225 Difference]: With dead ends: 735 [2018-01-24 23:43:49,149 INFO L226 Difference]: Without dead ends: 387 [2018-01-24 23:43:49,151 INFO L525 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-01-24 23:43:49,151 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 387 states. [2018-01-24 23:43:49,167 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 387 to 387. [2018-01-24 23:43:49,168 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 387 states. [2018-01-24 23:43:49,169 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 387 states to 387 states and 546 transitions. [2018-01-24 23:43:49,170 INFO L78 Accepts]: Start accepts. Automaton has 387 states and 546 transitions. Word has length 31 [2018-01-24 23:43:49,170 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-24 23:43:49,170 INFO L432 AbstractCegarLoop]: Abstraction has 387 states and 546 transitions. [2018-01-24 23:43:49,170 INFO L433 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-01-24 23:43:49,170 INFO L276 IsEmpty]: Start isEmpty. Operand 387 states and 546 transitions. [2018-01-24 23:43:49,171 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2018-01-24 23:43:49,171 INFO L314 BasicCegarLoop]: Found error trace [2018-01-24 23:43:49,171 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 23:43:49,171 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 23:43:49,171 INFO L82 PathProgramCache]: Analyzing trace with hash 348971873, now seen corresponding path program 1 times [2018-01-24 23:43:49,172 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-24 23:43:49,172 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 23:43:49,172 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-24 23:43:49,173 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 23:43:49,173 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-24 23:43:49,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-24 23:43:49,183 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-24 23:43:49,204 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-24 23:43:49,205 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-24 23:43:49,205 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-01-24 23:43:49,205 INFO L252 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-01-24 23:43:49,205 INFO L409 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-01-24 23:43:49,206 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-01-24 23:43:49,206 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-01-24 23:43:49,206 INFO L87 Difference]: Start difference. First operand 387 states and 546 transitions. Second operand 3 states. [2018-01-24 23:43:49,235 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-24 23:43:49,235 INFO L93 Difference]: Finished difference Result 637 states and 909 transitions. [2018-01-24 23:43:49,235 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-01-24 23:43:49,235 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 32 [2018-01-24 23:43:49,236 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-24 23:43:49,238 INFO L225 Difference]: With dead ends: 637 [2018-01-24 23:43:49,238 INFO L226 Difference]: Without dead ends: 428 [2018-01-24 23:43:49,239 INFO L525 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-01-24 23:43:49,239 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 428 states. [2018-01-24 23:43:49,256 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 428 to 379. [2018-01-24 23:43:49,256 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 379 states. [2018-01-24 23:43:49,258 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 379 states to 379 states and 526 transitions. [2018-01-24 23:43:49,258 INFO L78 Accepts]: Start accepts. Automaton has 379 states and 526 transitions. Word has length 32 [2018-01-24 23:43:49,259 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-24 23:43:49,259 INFO L432 AbstractCegarLoop]: Abstraction has 379 states and 526 transitions. [2018-01-24 23:43:49,259 INFO L433 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-01-24 23:43:49,259 INFO L276 IsEmpty]: Start isEmpty. Operand 379 states and 526 transitions. [2018-01-24 23:43:49,259 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2018-01-24 23:43:49,260 INFO L314 BasicCegarLoop]: Found error trace [2018-01-24 23:43:49,260 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 23:43:49,260 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 23:43:49,260 INFO L82 PathProgramCache]: Analyzing trace with hash 1663635795, now seen corresponding path program 1 times [2018-01-24 23:43:49,260 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-24 23:43:49,261 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 23:43:49,261 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-24 23:43:49,261 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 23:43:49,261 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-24 23:43:49,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-24 23:43:49,273 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-24 23:43:49,615 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 23:43:49,615 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-24 23:43:49,615 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2018-01-24 23:43:49,615 INFO L252 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-01-24 23:43:49,616 INFO L409 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-01-24 23:43:49,616 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-01-24 23:43:49,616 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2018-01-24 23:43:49,616 INFO L87 Difference]: Start difference. First operand 379 states and 526 transitions. Second operand 10 states. [2018-01-24 23:43:50,380 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-24 23:43:50,381 INFO L93 Difference]: Finished difference Result 948 states and 1266 transitions. [2018-01-24 23:43:50,381 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2018-01-24 23:43:50,381 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 33 [2018-01-24 23:43:50,381 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-24 23:43:50,383 INFO L225 Difference]: With dead ends: 948 [2018-01-24 23:43:50,383 INFO L226 Difference]: Without dead ends: 605 [2018-01-24 23:43:50,384 INFO L525 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=83, Invalid=189, Unknown=0, NotChecked=0, Total=272 [2018-01-24 23:43:50,384 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 605 states. [2018-01-24 23:43:50,404 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 605 to 396. [2018-01-24 23:43:50,404 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 396 states. [2018-01-24 23:43:50,406 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 396 states to 396 states and 548 transitions. [2018-01-24 23:43:50,406 INFO L78 Accepts]: Start accepts. Automaton has 396 states and 548 transitions. Word has length 33 [2018-01-24 23:43:50,406 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-24 23:43:50,406 INFO L432 AbstractCegarLoop]: Abstraction has 396 states and 548 transitions. [2018-01-24 23:43:50,406 INFO L433 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-01-24 23:43:50,407 INFO L276 IsEmpty]: Start isEmpty. Operand 396 states and 548 transitions. [2018-01-24 23:43:50,407 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2018-01-24 23:43:50,407 INFO L314 BasicCegarLoop]: Found error trace [2018-01-24 23:43:50,407 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 23:43:50,408 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 23:43:50,408 INFO L82 PathProgramCache]: Analyzing trace with hash 768774257, now seen corresponding path program 1 times [2018-01-24 23:43:50,408 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-24 23:43:50,409 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 23:43:50,409 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-24 23:43:50,409 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 23:43:50,409 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-24 23:43:50,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-24 23:43:50,421 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-24 23:43:50,678 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 23:43:50,678 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-01-24 23:43:50,679 INFO L187 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-01-24 23:43:50,679 INFO L199 CegarAbsIntRunner]: Running AI on error trace of length 35 with the following transitions: [2018-01-24 23:43:50,681 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 23:43:50,725 INFO L147 AbstractInterpreter]: Using domain VPDomain [2018-01-24 23:43:50,725 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