java -Xmx6000000000 -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data ./data --generate-csv --csv-dir ../../../releaseScripts/default/UAutomizer-linux/csv -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/ai/eq-bench/svcomp-DerefFreeMemtrack-32bit-Automizer_Taipan+AI_EQ_preciseopt.epf -i ../../../trunk/examples/svcomp/memsafety-ext/tree_parent_ptr_true-valid-memsafety_false-termination.i -------------------------------------------------------------------------------- This is Ultimate 0.1.23-6b94a2f [2018-01-25 03:08:27,327 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-01-25 03:08:27,328 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-01-25 03:08:27,343 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-01-25 03:08:27,343 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-01-25 03:08:27,344 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-01-25 03:08:27,346 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-01-25 03:08:27,347 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-01-25 03:08:27,350 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-01-25 03:08:27,351 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-01-25 03:08:27,352 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-01-25 03:08:27,352 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-01-25 03:08:27,353 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-01-25 03:08:27,355 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-01-25 03:08:27,356 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-01-25 03:08:27,358 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-01-25 03:08:27,360 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-01-25 03:08:27,362 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-01-25 03:08:27,364 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-01-25 03:08:27,365 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-01-25 03:08:27,367 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-01-25 03:08:27,367 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-01-25 03:08:27,367 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-01-25 03:08:27,368 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-01-25 03:08:27,369 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-01-25 03:08:27,371 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-01-25 03:08:27,371 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-01-25 03:08:27,372 INFO L177 SettingsManager]: PEA to Boogie provides no preferences, ignoring... [2018-01-25 03:08:27,372 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-01-25 03:08:27,372 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-01-25 03:08:27,373 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-01-25 03:08:27,373 INFO L98 SettingsManager]: Beginning loading settings from /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/ai/eq-bench/svcomp-DerefFreeMemtrack-32bit-Automizer_Taipan+AI_EQ_preciseopt.epf [2018-01-25 03:08:27,384 INFO L110 SettingsManager]: Loading preferences was successful [2018-01-25 03:08:27,384 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-01-25 03:08:27,385 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-01-25 03:08:27,385 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-01-25 03:08:27,385 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-01-25 03:08:27,386 INFO L133 SettingsManager]: * Weq Fattening=true [2018-01-25 03:08:27,386 INFO L133 SettingsManager]: * Flatten before fatten=true [2018-01-25 03:08:27,386 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=VPDomain [2018-01-25 03:08:27,386 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-01-25 03:08:27,387 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-01-25 03:08:27,387 INFO L133 SettingsManager]: * sizeof long=4 [2018-01-25 03:08:27,387 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-01-25 03:08:27,388 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-01-25 03:08:27,388 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-01-25 03:08:27,388 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-01-25 03:08:27,388 INFO L133 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2018-01-25 03:08:27,388 INFO L133 SettingsManager]: * Bitprecise bitfields=true [2018-01-25 03:08:27,389 INFO L133 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2018-01-25 03:08:27,389 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-01-25 03:08:27,389 INFO L133 SettingsManager]: * sizeof long double=12 [2018-01-25 03:08:27,389 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-01-25 03:08:27,390 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-01-25 03:08:27,390 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-01-25 03:08:27,390 INFO L133 SettingsManager]: * Add additional assume for each assert=false [2018-01-25 03:08:27,390 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-01-25 03:08:27,390 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-01-25 03:08:27,391 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-01-25 03:08:27,391 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-01-25 03:08:27,391 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-01-25 03:08:27,391 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-01-25 03:08:27,392 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-01-25 03:08:27,392 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-01-25 03:08:27,392 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-01-25 03:08:27,392 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-01-25 03:08:27,392 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-01-25 03:08:27,393 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-01-25 03:08:27,393 INFO L133 SettingsManager]: * TransformationType=HEAP_SEPARATOR [2018-01-25 03:08:27,445 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-01-25 03:08:27,463 INFO L266 ainManager$Toolchain]: [Toolchain 1]: Parser(s) successfully initialized [2018-01-25 03:08:27,468 INFO L222 ainManager$Toolchain]: [Toolchain 1]: Toolchain data selected. [2018-01-25 03:08:27,471 INFO L271 PluginConnector]: Initializing CDTParser... [2018-01-25 03:08:27,472 INFO L276 PluginConnector]: CDTParser initialized [2018-01-25 03:08:27,472 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/memsafety-ext/tree_parent_ptr_true-valid-memsafety_false-termination.i [2018-01-25 03:08:27,802 INFO L304 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-01-25 03:08:27,810 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-01-25 03:08:27,811 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-01-25 03:08:27,812 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-01-25 03:08:27,818 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-01-25 03:08:27,820 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.01 03:08:27" (1/1) ... [2018-01-25 03:08:27,823 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@43131290 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.01 03:08:27, skipping insertion in model container [2018-01-25 03:08:27,823 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.01 03:08:27" (1/1) ... [2018-01-25 03:08:27,851 INFO L153 Dispatcher]: Using SV-COMP mode [2018-01-25 03:08:27,925 INFO L153 Dispatcher]: Using SV-COMP mode [2018-01-25 03:08:28,068 INFO L450 PostProcessor]: Settings: Checked method=main [2018-01-25 03:08:28,092 INFO L450 PostProcessor]: Settings: Checked method=main [2018-01-25 03:08:28,110 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.01 03:08:28 WrapperNode [2018-01-25 03:08:28,111 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-01-25 03:08:28,115 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-01-25 03:08:28,116 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-01-25 03:08:28,116 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-01-25 03:08:28,133 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.01 03:08:28" (1/1) ... [2018-01-25 03:08:28,133 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.01 03:08:28" (1/1) ... [2018-01-25 03:08:28,147 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.01 03:08:28" (1/1) ... [2018-01-25 03:08:28,147 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.01 03:08:28" (1/1) ... [2018-01-25 03:08:28,160 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.01 03:08:28" (1/1) ... [2018-01-25 03:08:28,165 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.01 03:08:28" (1/1) ... [2018-01-25 03:08:28,167 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.01 03:08:28" (1/1) ... [2018-01-25 03:08:28,170 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-01-25 03:08:28,171 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-01-25 03:08:28,171 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-01-25 03:08:28,171 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-01-25 03:08:28,172 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.01 03:08:28" (1/1) ... No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-01-25 03:08:28,223 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-01-25 03:08:28,223 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-01-25 03:08:28,224 INFO L136 BoogieDeclarations]: Found implementation of procedure main [2018-01-25 03:08:28,224 INFO L128 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2018-01-25 03:08:28,224 INFO L128 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2018-01-25 03:08:28,224 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.free [2018-01-25 03:08:28,224 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-01-25 03:08:28,224 INFO L128 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-01-25 03:08:28,224 INFO L128 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2018-01-25 03:08:28,224 INFO L128 BoogieDeclarations]: Found specification of procedure malloc [2018-01-25 03:08:28,224 INFO L128 BoogieDeclarations]: Found specification of procedure free [2018-01-25 03:08:28,225 INFO L128 BoogieDeclarations]: Found specification of procedure main [2018-01-25 03:08:28,225 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-01-25 03:08:28,225 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-01-25 03:08:29,072 INFO L257 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-01-25 03:08:29,073 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.01 03:08:29 BoogieIcfgContainer [2018-01-25 03:08:29,073 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-01-25 03:08:29,074 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-01-25 03:08:29,074 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-01-25 03:08:29,076 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-01-25 03:08:29,077 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.01 03:08:27" (1/3) ... [2018-01-25 03:08:29,078 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7a244912 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.01 03:08:29, skipping insertion in model container [2018-01-25 03:08:29,078 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.01 03:08:28" (2/3) ... [2018-01-25 03:08:29,079 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7a244912 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.01 03:08:29, skipping insertion in model container [2018-01-25 03:08:29,079 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.01 03:08:29" (3/3) ... [2018-01-25 03:08:29,081 INFO L105 eAbstractionObserver]: Analyzing ICFG tree_parent_ptr_true-valid-memsafety_false-termination.i [2018-01-25 03:08:29,089 INFO L130 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-01-25 03:08:29,096 INFO L142 ceAbstractionStarter]: Appying trace abstraction to program that has 75 error locations. [2018-01-25 03:08:29,150 INFO L322 AbstractCegarLoop]: Interprodecural is true [2018-01-25 03:08:29,151 INFO L323 AbstractCegarLoop]: Hoare is true [2018-01-25 03:08:29,151 INFO L324 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-01-25 03:08:29,151 INFO L325 AbstractCegarLoop]: Backedges is TWOTRACK [2018-01-25 03:08:29,151 INFO L326 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-01-25 03:08:29,151 INFO L327 AbstractCegarLoop]: Difference is false [2018-01-25 03:08:29,151 INFO L328 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-01-25 03:08:29,151 INFO L333 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-01-25 03:08:29,152 INFO L87 2NestedWordAutomaton]: Mode: main mode - execution starts in main procedure [2018-01-25 03:08:29,184 INFO L276 IsEmpty]: Start isEmpty. Operand 164 states. [2018-01-25 03:08:29,198 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2018-01-25 03:08:29,198 INFO L314 BasicCegarLoop]: Found error trace [2018-01-25 03:08:29,199 INFO L322 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2018-01-25 03:08:29,200 INFO L371 AbstractCegarLoop]: === Iteration 1 === [mainErr51RequiresViolation, mainErr69RequiresViolation, mainErr26RequiresViolation, mainErr54RequiresViolation, mainErr66RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr31RequiresViolation, mainErr46RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr58RequiresViolation, mainErr62RequiresViolation, mainErr15RequiresViolation, mainErr49RequiresViolation, mainErr12RequiresViolation, mainErr71RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr55RequiresViolation, mainErr65RequiresViolation, mainErr70RequiresViolation, mainErr17RequiresViolation, mainErr74EnsuresViolation, mainErr42RequiresViolation, mainErr30RequiresViolation, mainErr11RequiresViolation, mainErr57RequiresViolation, mainErr63RequiresViolation, mainErr24RequiresViolation, mainErr44RequiresViolation, mainErr10RequiresViolation, mainErr43RequiresViolation, mainErr4RequiresViolation, mainErr50RequiresViolation, mainErr37RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr36RequiresViolation, mainErr61RequiresViolation, mainErr59RequiresViolation, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr21RequiresViolation, mainErr41RequiresViolation, mainErr56RequiresViolation, mainErr64RequiresViolation, mainErr48RequiresViolation, mainErr72RequiresViolation, mainErr39RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr52RequiresViolation, mainErr68RequiresViolation, mainErr45RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr60RequiresViolation, mainErr9RequiresViolation, mainErr67RequiresViolation, mainErr53RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr8RequiresViolation, mainErr34RequiresViolation, mainErr47RequiresViolation, mainErr73RequiresViolation, mainErr14RequiresViolation, mainErr40RequiresViolation]=== [2018-01-25 03:08:29,206 INFO L82 PathProgramCache]: Analyzing trace with hash -1759036932, now seen corresponding path program 1 times [2018-01-25 03:08:29,209 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-25 03:08:29,260 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-25 03:08:29,261 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-25 03:08:29,261 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-25 03:08:29,261 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-25 03:08:29,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-25 03:08:29,318 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-25 03:08:29,408 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-25 03:08:29,410 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-25 03:08:29,411 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-01-25 03:08:29,411 INFO L252 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-01-25 03:08:29,414 INFO L409 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-01-25 03:08:29,425 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-01-25 03:08:29,426 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-01-25 03:08:29,428 INFO L87 Difference]: Start difference. First operand 164 states. Second operand 4 states. [2018-01-25 03:08:29,831 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-25 03:08:29,832 INFO L93 Difference]: Finished difference Result 329 states and 357 transitions. [2018-01-25 03:08:29,832 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-01-25 03:08:29,834 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 8 [2018-01-25 03:08:29,834 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-25 03:08:29,847 INFO L225 Difference]: With dead ends: 329 [2018-01-25 03:08:29,847 INFO L226 Difference]: Without dead ends: 174 [2018-01-25 03:08:29,852 INFO L525 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-01-25 03:08:29,868 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 174 states. [2018-01-25 03:08:29,894 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 174 to 158. [2018-01-25 03:08:29,896 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 158 states. [2018-01-25 03:08:29,899 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 158 states to 158 states and 168 transitions. [2018-01-25 03:08:29,901 INFO L78 Accepts]: Start accepts. Automaton has 158 states and 168 transitions. Word has length 8 [2018-01-25 03:08:29,901 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-25 03:08:29,902 INFO L432 AbstractCegarLoop]: Abstraction has 158 states and 168 transitions. [2018-01-25 03:08:29,902 INFO L433 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-01-25 03:08:29,902 INFO L276 IsEmpty]: Start isEmpty. Operand 158 states and 168 transitions. [2018-01-25 03:08:29,902 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2018-01-25 03:08:29,902 INFO L314 BasicCegarLoop]: Found error trace [2018-01-25 03:08:29,903 INFO L322 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2018-01-25 03:08:29,903 INFO L371 AbstractCegarLoop]: === Iteration 2 === [mainErr51RequiresViolation, mainErr69RequiresViolation, mainErr26RequiresViolation, mainErr54RequiresViolation, mainErr66RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr31RequiresViolation, mainErr46RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr58RequiresViolation, mainErr62RequiresViolation, mainErr15RequiresViolation, mainErr49RequiresViolation, mainErr12RequiresViolation, mainErr71RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr55RequiresViolation, mainErr65RequiresViolation, mainErr70RequiresViolation, mainErr17RequiresViolation, mainErr74EnsuresViolation, mainErr42RequiresViolation, mainErr30RequiresViolation, mainErr11RequiresViolation, mainErr57RequiresViolation, mainErr63RequiresViolation, mainErr24RequiresViolation, mainErr44RequiresViolation, mainErr10RequiresViolation, mainErr43RequiresViolation, mainErr4RequiresViolation, mainErr50RequiresViolation, mainErr37RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr36RequiresViolation, mainErr61RequiresViolation, mainErr59RequiresViolation, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr21RequiresViolation, mainErr41RequiresViolation, mainErr56RequiresViolation, mainErr64RequiresViolation, mainErr48RequiresViolation, mainErr72RequiresViolation, mainErr39RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr52RequiresViolation, mainErr68RequiresViolation, mainErr45RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr60RequiresViolation, mainErr9RequiresViolation, mainErr67RequiresViolation, mainErr53RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr8RequiresViolation, mainErr34RequiresViolation, mainErr47RequiresViolation, mainErr73RequiresViolation, mainErr14RequiresViolation, mainErr40RequiresViolation]=== [2018-01-25 03:08:29,903 INFO L82 PathProgramCache]: Analyzing trace with hash -1759036931, now seen corresponding path program 1 times [2018-01-25 03:08:29,903 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-25 03:08:29,904 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-25 03:08:29,904 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-25 03:08:29,904 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-25 03:08:29,905 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-25 03:08:29,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-25 03:08:29,927 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-25 03:08:30,018 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-25 03:08:30,018 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-25 03:08:30,019 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-01-25 03:08:30,019 INFO L252 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-01-25 03:08:30,020 INFO L409 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-01-25 03:08:30,020 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-01-25 03:08:30,020 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-01-25 03:08:30,021 INFO L87 Difference]: Start difference. First operand 158 states and 168 transitions. Second operand 4 states. [2018-01-25 03:08:30,264 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-25 03:08:30,265 INFO L93 Difference]: Finished difference Result 158 states and 168 transitions. [2018-01-25 03:08:30,265 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-01-25 03:08:30,266 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 8 [2018-01-25 03:08:30,266 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-25 03:08:30,268 INFO L225 Difference]: With dead ends: 158 [2018-01-25 03:08:30,268 INFO L226 Difference]: Without dead ends: 155 [2018-01-25 03:08:30,269 INFO L525 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-01-25 03:08:30,269 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 155 states. [2018-01-25 03:08:30,279 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 155 to 155. [2018-01-25 03:08:30,279 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 155 states. [2018-01-25 03:08:30,281 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 155 states to 155 states and 165 transitions. [2018-01-25 03:08:30,281 INFO L78 Accepts]: Start accepts. Automaton has 155 states and 165 transitions. Word has length 8 [2018-01-25 03:08:30,282 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-25 03:08:30,282 INFO L432 AbstractCegarLoop]: Abstraction has 155 states and 165 transitions. [2018-01-25 03:08:30,282 INFO L433 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-01-25 03:08:30,282 INFO L276 IsEmpty]: Start isEmpty. Operand 155 states and 165 transitions. [2018-01-25 03:08:30,283 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2018-01-25 03:08:30,283 INFO L314 BasicCegarLoop]: Found error trace [2018-01-25 03:08:30,283 INFO L322 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-25 03:08:30,283 INFO L371 AbstractCegarLoop]: === Iteration 3 === [mainErr51RequiresViolation, mainErr69RequiresViolation, mainErr26RequiresViolation, mainErr54RequiresViolation, mainErr66RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr31RequiresViolation, mainErr46RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr58RequiresViolation, mainErr62RequiresViolation, mainErr15RequiresViolation, mainErr49RequiresViolation, mainErr12RequiresViolation, mainErr71RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr55RequiresViolation, mainErr65RequiresViolation, mainErr70RequiresViolation, mainErr17RequiresViolation, mainErr74EnsuresViolation, mainErr42RequiresViolation, mainErr30RequiresViolation, mainErr11RequiresViolation, mainErr57RequiresViolation, mainErr63RequiresViolation, mainErr24RequiresViolation, mainErr44RequiresViolation, mainErr10RequiresViolation, mainErr43RequiresViolation, mainErr4RequiresViolation, mainErr50RequiresViolation, mainErr37RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr36RequiresViolation, mainErr61RequiresViolation, mainErr59RequiresViolation, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr21RequiresViolation, mainErr41RequiresViolation, mainErr56RequiresViolation, mainErr64RequiresViolation, mainErr48RequiresViolation, mainErr72RequiresViolation, mainErr39RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr52RequiresViolation, mainErr68RequiresViolation, mainErr45RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr60RequiresViolation, mainErr9RequiresViolation, mainErr67RequiresViolation, mainErr53RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr8RequiresViolation, mainErr34RequiresViolation, mainErr47RequiresViolation, mainErr73RequiresViolation, mainErr14RequiresViolation, mainErr40RequiresViolation]=== [2018-01-25 03:08:30,283 INFO L82 PathProgramCache]: Analyzing trace with hash -2080332291, now seen corresponding path program 1 times [2018-01-25 03:08:30,284 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-25 03:08:30,285 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-25 03:08:30,285 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-25 03:08:30,285 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-25 03:08:30,285 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-25 03:08:30,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-25 03:08:30,304 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-25 03:08:30,342 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-25 03:08:30,342 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-25 03:08:30,342 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-01-25 03:08:30,342 INFO L252 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-01-25 03:08:30,342 INFO L409 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-01-25 03:08:30,343 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-01-25 03:08:30,343 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-01-25 03:08:30,343 INFO L87 Difference]: Start difference. First operand 155 states and 165 transitions. Second operand 4 states. [2018-01-25 03:08:30,568 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-25 03:08:30,568 INFO L93 Difference]: Finished difference Result 179 states and 190 transitions. [2018-01-25 03:08:30,569 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-01-25 03:08:30,569 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 15 [2018-01-25 03:08:30,569 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-25 03:08:30,570 INFO L225 Difference]: With dead ends: 179 [2018-01-25 03:08:30,570 INFO L226 Difference]: Without dead ends: 161 [2018-01-25 03:08:30,571 INFO L525 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-01-25 03:08:30,571 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 161 states. [2018-01-25 03:08:30,581 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 161 to 140. [2018-01-25 03:08:30,581 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 140 states. [2018-01-25 03:08:30,584 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 140 states to 140 states and 151 transitions. [2018-01-25 03:08:30,585 INFO L78 Accepts]: Start accepts. Automaton has 140 states and 151 transitions. Word has length 15 [2018-01-25 03:08:30,585 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-25 03:08:30,585 INFO L432 AbstractCegarLoop]: Abstraction has 140 states and 151 transitions. [2018-01-25 03:08:30,585 INFO L433 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-01-25 03:08:30,585 INFO L276 IsEmpty]: Start isEmpty. Operand 140 states and 151 transitions. [2018-01-25 03:08:30,586 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2018-01-25 03:08:30,586 INFO L314 BasicCegarLoop]: Found error trace [2018-01-25 03:08:30,586 INFO L322 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-25 03:08:30,586 INFO L371 AbstractCegarLoop]: === Iteration 4 === [mainErr51RequiresViolation, mainErr69RequiresViolation, mainErr26RequiresViolation, mainErr54RequiresViolation, mainErr66RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr31RequiresViolation, mainErr46RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr58RequiresViolation, mainErr62RequiresViolation, mainErr15RequiresViolation, mainErr49RequiresViolation, mainErr12RequiresViolation, mainErr71RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr55RequiresViolation, mainErr65RequiresViolation, mainErr70RequiresViolation, mainErr17RequiresViolation, mainErr74EnsuresViolation, mainErr42RequiresViolation, mainErr30RequiresViolation, mainErr11RequiresViolation, mainErr57RequiresViolation, mainErr63RequiresViolation, mainErr24RequiresViolation, mainErr44RequiresViolation, mainErr10RequiresViolation, mainErr43RequiresViolation, mainErr4RequiresViolation, mainErr50RequiresViolation, mainErr37RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr36RequiresViolation, mainErr61RequiresViolation, mainErr59RequiresViolation, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr21RequiresViolation, mainErr41RequiresViolation, mainErr56RequiresViolation, mainErr64RequiresViolation, mainErr48RequiresViolation, mainErr72RequiresViolation, mainErr39RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr52RequiresViolation, mainErr68RequiresViolation, mainErr45RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr60RequiresViolation, mainErr9RequiresViolation, mainErr67RequiresViolation, mainErr53RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr8RequiresViolation, mainErr34RequiresViolation, mainErr47RequiresViolation, mainErr73RequiresViolation, mainErr14RequiresViolation, mainErr40RequiresViolation]=== [2018-01-25 03:08:30,586 INFO L82 PathProgramCache]: Analyzing trace with hash -2080332290, now seen corresponding path program 1 times [2018-01-25 03:08:30,587 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-25 03:08:30,591 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-25 03:08:30,592 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-25 03:08:30,592 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-25 03:08:30,592 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-25 03:08:30,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-25 03:08:30,626 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-25 03:08:30,767 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-25 03:08:30,768 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-25 03:08:30,768 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-01-25 03:08:30,768 INFO L252 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-01-25 03:08:30,768 INFO L409 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-01-25 03:08:30,768 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-01-25 03:08:30,769 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-01-25 03:08:30,769 INFO L87 Difference]: Start difference. First operand 140 states and 151 transitions. Second operand 5 states. [2018-01-25 03:08:31,319 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-25 03:08:31,320 INFO L93 Difference]: Finished difference Result 210 states and 228 transitions. [2018-01-25 03:08:31,320 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-01-25 03:08:31,320 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 15 [2018-01-25 03:08:31,321 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-25 03:08:31,324 INFO L225 Difference]: With dead ends: 210 [2018-01-25 03:08:31,324 INFO L226 Difference]: Without dead ends: 196 [2018-01-25 03:08:31,327 INFO L525 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2018-01-25 03:08:31,327 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 196 states. [2018-01-25 03:08:31,342 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 196 to 176. [2018-01-25 03:08:31,343 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 176 states. [2018-01-25 03:08:31,344 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 176 states to 176 states and 203 transitions. [2018-01-25 03:08:31,344 INFO L78 Accepts]: Start accepts. Automaton has 176 states and 203 transitions. Word has length 15 [2018-01-25 03:08:31,345 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-25 03:08:31,345 INFO L432 AbstractCegarLoop]: Abstraction has 176 states and 203 transitions. [2018-01-25 03:08:31,345 INFO L433 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-01-25 03:08:31,345 INFO L276 IsEmpty]: Start isEmpty. Operand 176 states and 203 transitions. [2018-01-25 03:08:31,346 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2018-01-25 03:08:31,346 INFO L314 BasicCegarLoop]: Found error trace [2018-01-25 03:08:31,346 INFO L322 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-25 03:08:31,346 INFO L371 AbstractCegarLoop]: === Iteration 5 === [mainErr51RequiresViolation, mainErr69RequiresViolation, mainErr26RequiresViolation, mainErr54RequiresViolation, mainErr66RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr31RequiresViolation, mainErr46RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr58RequiresViolation, mainErr62RequiresViolation, mainErr15RequiresViolation, mainErr49RequiresViolation, mainErr12RequiresViolation, mainErr71RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr55RequiresViolation, mainErr65RequiresViolation, mainErr70RequiresViolation, mainErr17RequiresViolation, mainErr74EnsuresViolation, mainErr42RequiresViolation, mainErr30RequiresViolation, mainErr11RequiresViolation, mainErr57RequiresViolation, mainErr63RequiresViolation, mainErr24RequiresViolation, mainErr44RequiresViolation, mainErr10RequiresViolation, mainErr43RequiresViolation, mainErr4RequiresViolation, mainErr50RequiresViolation, mainErr37RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr36RequiresViolation, mainErr61RequiresViolation, mainErr59RequiresViolation, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr21RequiresViolation, mainErr41RequiresViolation, mainErr56RequiresViolation, mainErr64RequiresViolation, mainErr48RequiresViolation, mainErr72RequiresViolation, mainErr39RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr52RequiresViolation, mainErr68RequiresViolation, mainErr45RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr60RequiresViolation, mainErr9RequiresViolation, mainErr67RequiresViolation, mainErr53RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr8RequiresViolation, mainErr34RequiresViolation, mainErr47RequiresViolation, mainErr73RequiresViolation, mainErr14RequiresViolation, mainErr40RequiresViolation]=== [2018-01-25 03:08:31,346 INFO L82 PathProgramCache]: Analyzing trace with hash -2037600517, now seen corresponding path program 1 times [2018-01-25 03:08:31,346 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-25 03:08:31,347 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-25 03:08:31,348 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-25 03:08:31,348 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-25 03:08:31,348 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-25 03:08:31,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-25 03:08:31,374 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-25 03:08:31,424 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-25 03:08:31,424 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-25 03:08:31,424 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-01-25 03:08:31,424 INFO L252 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-01-25 03:08:31,425 INFO L409 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-01-25 03:08:31,425 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-01-25 03:08:31,425 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-01-25 03:08:31,426 INFO L87 Difference]: Start difference. First operand 176 states and 203 transitions. Second operand 4 states. [2018-01-25 03:08:31,567 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-25 03:08:31,568 INFO L93 Difference]: Finished difference Result 192 states and 219 transitions. [2018-01-25 03:08:31,568 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-01-25 03:08:31,568 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 17 [2018-01-25 03:08:31,568 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-25 03:08:31,569 INFO L225 Difference]: With dead ends: 192 [2018-01-25 03:08:31,569 INFO L226 Difference]: Without dead ends: 189 [2018-01-25 03:08:31,569 INFO L525 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-01-25 03:08:31,570 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 189 states. [2018-01-25 03:08:31,577 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 189 to 177. [2018-01-25 03:08:31,577 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 177 states. [2018-01-25 03:08:31,579 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 177 states to 177 states and 206 transitions. [2018-01-25 03:08:31,579 INFO L78 Accepts]: Start accepts. Automaton has 177 states and 206 transitions. Word has length 17 [2018-01-25 03:08:31,579 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-25 03:08:31,579 INFO L432 AbstractCegarLoop]: Abstraction has 177 states and 206 transitions. [2018-01-25 03:08:31,579 INFO L433 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-01-25 03:08:31,580 INFO L276 IsEmpty]: Start isEmpty. Operand 177 states and 206 transitions. [2018-01-25 03:08:31,580 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2018-01-25 03:08:31,580 INFO L314 BasicCegarLoop]: Found error trace [2018-01-25 03:08:31,580 INFO L322 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-25 03:08:31,581 INFO L371 AbstractCegarLoop]: === Iteration 6 === [mainErr51RequiresViolation, mainErr69RequiresViolation, mainErr26RequiresViolation, mainErr54RequiresViolation, mainErr66RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr31RequiresViolation, mainErr46RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr58RequiresViolation, mainErr62RequiresViolation, mainErr15RequiresViolation, mainErr49RequiresViolation, mainErr12RequiresViolation, mainErr71RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr55RequiresViolation, mainErr65RequiresViolation, mainErr70RequiresViolation, mainErr17RequiresViolation, mainErr74EnsuresViolation, mainErr42RequiresViolation, mainErr30RequiresViolation, mainErr11RequiresViolation, mainErr57RequiresViolation, mainErr63RequiresViolation, mainErr24RequiresViolation, mainErr44RequiresViolation, mainErr10RequiresViolation, mainErr43RequiresViolation, mainErr4RequiresViolation, mainErr50RequiresViolation, mainErr37RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr36RequiresViolation, mainErr61RequiresViolation, mainErr59RequiresViolation, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr21RequiresViolation, mainErr41RequiresViolation, mainErr56RequiresViolation, mainErr64RequiresViolation, mainErr48RequiresViolation, mainErr72RequiresViolation, mainErr39RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr52RequiresViolation, mainErr68RequiresViolation, mainErr45RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr60RequiresViolation, mainErr9RequiresViolation, mainErr67RequiresViolation, mainErr53RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr8RequiresViolation, mainErr34RequiresViolation, mainErr47RequiresViolation, mainErr73RequiresViolation, mainErr14RequiresViolation, mainErr40RequiresViolation]=== [2018-01-25 03:08:31,581 INFO L82 PathProgramCache]: Analyzing trace with hash -2037600516, now seen corresponding path program 1 times [2018-01-25 03:08:31,581 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-25 03:08:31,582 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-25 03:08:31,582 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-25 03:08:31,582 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-25 03:08:31,582 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-25 03:08:31,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-25 03:08:31,595 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-25 03:08:31,636 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-25 03:08:31,636 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-25 03:08:31,636 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-01-25 03:08:31,636 INFO L252 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-01-25 03:08:31,637 INFO L409 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-01-25 03:08:31,637 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-01-25 03:08:31,637 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-01-25 03:08:31,637 INFO L87 Difference]: Start difference. First operand 177 states and 206 transitions. Second operand 4 states. [2018-01-25 03:08:31,886 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-25 03:08:31,886 INFO L93 Difference]: Finished difference Result 182 states and 209 transitions. [2018-01-25 03:08:31,886 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-01-25 03:08:31,887 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 17 [2018-01-25 03:08:31,887 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-25 03:08:31,888 INFO L225 Difference]: With dead ends: 182 [2018-01-25 03:08:31,888 INFO L226 Difference]: Without dead ends: 179 [2018-01-25 03:08:31,888 INFO L525 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-01-25 03:08:31,889 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 179 states. [2018-01-25 03:08:31,895 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 179 to 175. [2018-01-25 03:08:31,895 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 175 states. [2018-01-25 03:08:31,896 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 175 states to 175 states and 203 transitions. [2018-01-25 03:08:31,897 INFO L78 Accepts]: Start accepts. Automaton has 175 states and 203 transitions. Word has length 17 [2018-01-25 03:08:31,897 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-25 03:08:31,897 INFO L432 AbstractCegarLoop]: Abstraction has 175 states and 203 transitions. [2018-01-25 03:08:31,897 INFO L433 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-01-25 03:08:31,897 INFO L276 IsEmpty]: Start isEmpty. Operand 175 states and 203 transitions. [2018-01-25 03:08:31,898 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2018-01-25 03:08:31,898 INFO L314 BasicCegarLoop]: Found error trace [2018-01-25 03:08:31,898 INFO L322 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-25 03:08:31,898 INFO L371 AbstractCegarLoop]: === Iteration 7 === [mainErr51RequiresViolation, mainErr69RequiresViolation, mainErr26RequiresViolation, mainErr54RequiresViolation, mainErr66RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr31RequiresViolation, mainErr46RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr58RequiresViolation, mainErr62RequiresViolation, mainErr15RequiresViolation, mainErr49RequiresViolation, mainErr12RequiresViolation, mainErr71RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr55RequiresViolation, mainErr65RequiresViolation, mainErr70RequiresViolation, mainErr17RequiresViolation, mainErr74EnsuresViolation, mainErr42RequiresViolation, mainErr30RequiresViolation, mainErr11RequiresViolation, mainErr57RequiresViolation, mainErr63RequiresViolation, mainErr24RequiresViolation, mainErr44RequiresViolation, mainErr10RequiresViolation, mainErr43RequiresViolation, mainErr4RequiresViolation, mainErr50RequiresViolation, mainErr37RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr36RequiresViolation, mainErr61RequiresViolation, mainErr59RequiresViolation, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr21RequiresViolation, mainErr41RequiresViolation, mainErr56RequiresViolation, mainErr64RequiresViolation, mainErr48RequiresViolation, mainErr72RequiresViolation, mainErr39RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr52RequiresViolation, mainErr68RequiresViolation, mainErr45RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr60RequiresViolation, mainErr9RequiresViolation, mainErr67RequiresViolation, mainErr53RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr8RequiresViolation, mainErr34RequiresViolation, mainErr47RequiresViolation, mainErr73RequiresViolation, mainErr14RequiresViolation, mainErr40RequiresViolation]=== [2018-01-25 03:08:31,898 INFO L82 PathProgramCache]: Analyzing trace with hash 1339674347, now seen corresponding path program 1 times [2018-01-25 03:08:31,898 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-25 03:08:31,899 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-25 03:08:31,899 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-25 03:08:31,900 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-25 03:08:31,900 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-25 03:08:31,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-25 03:08:31,913 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-25 03:08:31,945 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-25 03:08:31,946 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-25 03:08:31,946 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-01-25 03:08:31,946 INFO L252 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-01-25 03:08:31,946 INFO L409 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-01-25 03:08:31,947 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-01-25 03:08:31,947 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-01-25 03:08:31,947 INFO L87 Difference]: Start difference. First operand 175 states and 203 transitions. Second operand 4 states. [2018-01-25 03:08:31,975 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-25 03:08:31,976 INFO L93 Difference]: Finished difference Result 179 states and 206 transitions. [2018-01-25 03:08:31,978 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-01-25 03:08:31,978 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 22 [2018-01-25 03:08:31,979 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-25 03:08:31,980 INFO L225 Difference]: With dead ends: 179 [2018-01-25 03:08:31,980 INFO L226 Difference]: Without dead ends: 176 [2018-01-25 03:08:31,981 INFO L525 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-01-25 03:08:31,981 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 176 states. [2018-01-25 03:08:31,988 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 176 to 175. [2018-01-25 03:08:31,988 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 175 states. [2018-01-25 03:08:31,989 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 175 states to 175 states and 202 transitions. [2018-01-25 03:08:31,989 INFO L78 Accepts]: Start accepts. Automaton has 175 states and 202 transitions. Word has length 22 [2018-01-25 03:08:31,989 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-25 03:08:31,990 INFO L432 AbstractCegarLoop]: Abstraction has 175 states and 202 transitions. [2018-01-25 03:08:31,990 INFO L433 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-01-25 03:08:31,990 INFO L276 IsEmpty]: Start isEmpty. Operand 175 states and 202 transitions. [2018-01-25 03:08:31,990 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2018-01-25 03:08:31,991 INFO L314 BasicCegarLoop]: Found error trace [2018-01-25 03:08:31,991 INFO L322 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-25 03:08:31,991 INFO L371 AbstractCegarLoop]: === Iteration 8 === [mainErr51RequiresViolation, mainErr69RequiresViolation, mainErr26RequiresViolation, mainErr54RequiresViolation, mainErr66RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr31RequiresViolation, mainErr46RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr58RequiresViolation, mainErr62RequiresViolation, mainErr15RequiresViolation, mainErr49RequiresViolation, mainErr12RequiresViolation, mainErr71RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr55RequiresViolation, mainErr65RequiresViolation, mainErr70RequiresViolation, mainErr17RequiresViolation, mainErr74EnsuresViolation, mainErr42RequiresViolation, mainErr30RequiresViolation, mainErr11RequiresViolation, mainErr57RequiresViolation, mainErr63RequiresViolation, mainErr24RequiresViolation, mainErr44RequiresViolation, mainErr10RequiresViolation, mainErr43RequiresViolation, mainErr4RequiresViolation, mainErr50RequiresViolation, mainErr37RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr36RequiresViolation, mainErr61RequiresViolation, mainErr59RequiresViolation, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr21RequiresViolation, mainErr41RequiresViolation, mainErr56RequiresViolation, mainErr64RequiresViolation, mainErr48RequiresViolation, mainErr72RequiresViolation, mainErr39RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr52RequiresViolation, mainErr68RequiresViolation, mainErr45RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr60RequiresViolation, mainErr9RequiresViolation, mainErr67RequiresViolation, mainErr53RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr8RequiresViolation, mainErr34RequiresViolation, mainErr47RequiresViolation, mainErr73RequiresViolation, mainErr14RequiresViolation, mainErr40RequiresViolation]=== [2018-01-25 03:08:31,991 INFO L82 PathProgramCache]: Analyzing trace with hash -1419766941, now seen corresponding path program 1 times [2018-01-25 03:08:31,991 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-25 03:08:31,992 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-25 03:08:31,992 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-25 03:08:31,992 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-25 03:08:31,992 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-25 03:08:32,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-25 03:08:32,008 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-25 03:08:32,178 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-25 03:08:32,179 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-25 03:08:32,179 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-01-25 03:08:32,179 INFO L252 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-01-25 03:08:32,179 INFO L409 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-01-25 03:08:32,179 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-01-25 03:08:32,180 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-01-25 03:08:32,180 INFO L87 Difference]: Start difference. First operand 175 states and 202 transitions. Second operand 5 states. [2018-01-25 03:08:32,346 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-25 03:08:32,347 INFO L93 Difference]: Finished difference Result 194 states and 223 transitions. [2018-01-25 03:08:32,347 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-01-25 03:08:32,347 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 23 [2018-01-25 03:08:32,347 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-25 03:08:32,349 INFO L225 Difference]: With dead ends: 194 [2018-01-25 03:08:32,349 INFO L226 Difference]: Without dead ends: 190 [2018-01-25 03:08:32,349 INFO L525 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2018-01-25 03:08:32,350 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 190 states. [2018-01-25 03:08:32,355 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 190 to 174. [2018-01-25 03:08:32,355 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 174 states. [2018-01-25 03:08:32,356 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 174 states to 174 states and 202 transitions. [2018-01-25 03:08:32,356 INFO L78 Accepts]: Start accepts. Automaton has 174 states and 202 transitions. Word has length 23 [2018-01-25 03:08:32,356 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-25 03:08:32,356 INFO L432 AbstractCegarLoop]: Abstraction has 174 states and 202 transitions. [2018-01-25 03:08:32,356 INFO L433 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-01-25 03:08:32,356 INFO L276 IsEmpty]: Start isEmpty. Operand 174 states and 202 transitions. [2018-01-25 03:08:32,357 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2018-01-25 03:08:32,357 INFO L314 BasicCegarLoop]: Found error trace [2018-01-25 03:08:32,357 INFO L322 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-25 03:08:32,358 INFO L371 AbstractCegarLoop]: === Iteration 9 === [mainErr51RequiresViolation, mainErr69RequiresViolation, mainErr26RequiresViolation, mainErr54RequiresViolation, mainErr66RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr31RequiresViolation, mainErr46RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr58RequiresViolation, mainErr62RequiresViolation, mainErr15RequiresViolation, mainErr49RequiresViolation, mainErr12RequiresViolation, mainErr71RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr55RequiresViolation, mainErr65RequiresViolation, mainErr70RequiresViolation, mainErr17RequiresViolation, mainErr74EnsuresViolation, mainErr42RequiresViolation, mainErr30RequiresViolation, mainErr11RequiresViolation, mainErr57RequiresViolation, mainErr63RequiresViolation, mainErr24RequiresViolation, mainErr44RequiresViolation, mainErr10RequiresViolation, mainErr43RequiresViolation, mainErr4RequiresViolation, mainErr50RequiresViolation, mainErr37RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr36RequiresViolation, mainErr61RequiresViolation, mainErr59RequiresViolation, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr21RequiresViolation, mainErr41RequiresViolation, mainErr56RequiresViolation, mainErr64RequiresViolation, mainErr48RequiresViolation, mainErr72RequiresViolation, mainErr39RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr52RequiresViolation, mainErr68RequiresViolation, mainErr45RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr60RequiresViolation, mainErr9RequiresViolation, mainErr67RequiresViolation, mainErr53RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr8RequiresViolation, mainErr34RequiresViolation, mainErr47RequiresViolation, mainErr73RequiresViolation, mainErr14RequiresViolation, mainErr40RequiresViolation]=== [2018-01-25 03:08:32,358 INFO L82 PathProgramCache]: Analyzing trace with hash -1419766940, now seen corresponding path program 1 times [2018-01-25 03:08:32,358 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-25 03:08:32,359 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-25 03:08:32,359 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-25 03:08:32,359 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-25 03:08:32,359 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-25 03:08:32,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-25 03:08:32,382 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-25 03:08:32,463 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-25 03:08:32,464 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-25 03:08:32,464 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-01-25 03:08:32,464 INFO L252 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-01-25 03:08:32,464 INFO L409 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-01-25 03:08:32,465 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-01-25 03:08:32,465 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-01-25 03:08:32,465 INFO L87 Difference]: Start difference. First operand 174 states and 202 transitions. Second operand 5 states. [2018-01-25 03:08:32,655 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-25 03:08:32,655 INFO L93 Difference]: Finished difference Result 196 states and 225 transitions. [2018-01-25 03:08:32,655 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-01-25 03:08:32,655 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 23 [2018-01-25 03:08:32,656 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-25 03:08:32,657 INFO L225 Difference]: With dead ends: 196 [2018-01-25 03:08:32,657 INFO L226 Difference]: Without dead ends: 194 [2018-01-25 03:08:32,657 INFO L525 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2018-01-25 03:08:32,658 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 194 states. [2018-01-25 03:08:32,662 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 194 to 176. [2018-01-25 03:08:32,662 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 176 states. [2018-01-25 03:08:32,663 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 176 states to 176 states and 203 transitions. [2018-01-25 03:08:32,663 INFO L78 Accepts]: Start accepts. Automaton has 176 states and 203 transitions. Word has length 23 [2018-01-25 03:08:32,664 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-25 03:08:32,664 INFO L432 AbstractCegarLoop]: Abstraction has 176 states and 203 transitions. [2018-01-25 03:08:32,664 INFO L433 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-01-25 03:08:32,664 INFO L276 IsEmpty]: Start isEmpty. Operand 176 states and 203 transitions. [2018-01-25 03:08:32,665 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2018-01-25 03:08:32,665 INFO L314 BasicCegarLoop]: Found error trace [2018-01-25 03:08:32,665 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] [2018-01-25 03:08:32,665 INFO L371 AbstractCegarLoop]: === Iteration 10 === [mainErr51RequiresViolation, mainErr69RequiresViolation, mainErr26RequiresViolation, mainErr54RequiresViolation, mainErr66RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr31RequiresViolation, mainErr46RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr58RequiresViolation, mainErr62RequiresViolation, mainErr15RequiresViolation, mainErr49RequiresViolation, mainErr12RequiresViolation, mainErr71RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr55RequiresViolation, mainErr65RequiresViolation, mainErr70RequiresViolation, mainErr17RequiresViolation, mainErr74EnsuresViolation, mainErr42RequiresViolation, mainErr30RequiresViolation, mainErr11RequiresViolation, mainErr57RequiresViolation, mainErr63RequiresViolation, mainErr24RequiresViolation, mainErr44RequiresViolation, mainErr10RequiresViolation, mainErr43RequiresViolation, mainErr4RequiresViolation, mainErr50RequiresViolation, mainErr37RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr36RequiresViolation, mainErr61RequiresViolation, mainErr59RequiresViolation, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr21RequiresViolation, mainErr41RequiresViolation, mainErr56RequiresViolation, mainErr64RequiresViolation, mainErr48RequiresViolation, mainErr72RequiresViolation, mainErr39RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr52RequiresViolation, mainErr68RequiresViolation, mainErr45RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr60RequiresViolation, mainErr9RequiresViolation, mainErr67RequiresViolation, mainErr53RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr8RequiresViolation, mainErr34RequiresViolation, mainErr47RequiresViolation, mainErr73RequiresViolation, mainErr14RequiresViolation, mainErr40RequiresViolation]=== [2018-01-25 03:08:32,665 INFO L82 PathProgramCache]: Analyzing trace with hash 916114990, now seen corresponding path program 1 times [2018-01-25 03:08:32,666 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-25 03:08:32,666 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-25 03:08:32,667 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-25 03:08:32,667 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-25 03:08:32,667 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-25 03:08:32,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-25 03:08:32,676 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-25 03:08:32,695 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-25 03:08:32,695 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-25 03:08:32,695 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-01-25 03:08:32,695 INFO L252 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-01-25 03:08:32,696 INFO L409 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-01-25 03:08:32,696 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-01-25 03:08:32,696 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-01-25 03:08:32,696 INFO L87 Difference]: Start difference. First operand 176 states and 203 transitions. Second operand 3 states. [2018-01-25 03:08:32,722 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-25 03:08:32,722 INFO L93 Difference]: Finished difference Result 344 states and 400 transitions. [2018-01-25 03:08:32,722 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-01-25 03:08:32,722 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 23 [2018-01-25 03:08:32,723 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-25 03:08:32,724 INFO L225 Difference]: With dead ends: 344 [2018-01-25 03:08:32,724 INFO L226 Difference]: Without dead ends: 178 [2018-01-25 03:08:32,725 INFO L525 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-01-25 03:08:32,726 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 178 states. [2018-01-25 03:08:32,732 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 178 to 178. [2018-01-25 03:08:32,732 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 178 states. [2018-01-25 03:08:32,733 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 178 states to 178 states and 205 transitions. [2018-01-25 03:08:32,734 INFO L78 Accepts]: Start accepts. Automaton has 178 states and 205 transitions. Word has length 23 [2018-01-25 03:08:32,734 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-25 03:08:32,734 INFO L432 AbstractCegarLoop]: Abstraction has 178 states and 205 transitions. [2018-01-25 03:08:32,734 INFO L433 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-01-25 03:08:32,734 INFO L276 IsEmpty]: Start isEmpty. Operand 178 states and 205 transitions. [2018-01-25 03:08:32,735 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2018-01-25 03:08:32,735 INFO L314 BasicCegarLoop]: Found error trace [2018-01-25 03:08:32,736 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] [2018-01-25 03:08:32,736 INFO L371 AbstractCegarLoop]: === Iteration 11 === [mainErr51RequiresViolation, mainErr69RequiresViolation, mainErr26RequiresViolation, mainErr54RequiresViolation, mainErr66RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr31RequiresViolation, mainErr46RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr58RequiresViolation, mainErr62RequiresViolation, mainErr15RequiresViolation, mainErr49RequiresViolation, mainErr12RequiresViolation, mainErr71RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr55RequiresViolation, mainErr65RequiresViolation, mainErr70RequiresViolation, mainErr17RequiresViolation, mainErr74EnsuresViolation, mainErr42RequiresViolation, mainErr30RequiresViolation, mainErr11RequiresViolation, mainErr57RequiresViolation, mainErr63RequiresViolation, mainErr24RequiresViolation, mainErr44RequiresViolation, mainErr10RequiresViolation, mainErr43RequiresViolation, mainErr4RequiresViolation, mainErr50RequiresViolation, mainErr37RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr36RequiresViolation, mainErr61RequiresViolation, mainErr59RequiresViolation, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr21RequiresViolation, mainErr41RequiresViolation, mainErr56RequiresViolation, mainErr64RequiresViolation, mainErr48RequiresViolation, mainErr72RequiresViolation, mainErr39RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr52RequiresViolation, mainErr68RequiresViolation, mainErr45RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr60RequiresViolation, mainErr9RequiresViolation, mainErr67RequiresViolation, mainErr53RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr8RequiresViolation, mainErr34RequiresViolation, mainErr47RequiresViolation, mainErr73RequiresViolation, mainErr14RequiresViolation, mainErr40RequiresViolation]=== [2018-01-25 03:08:32,736 INFO L82 PathProgramCache]: Analyzing trace with hash -1108120181, now seen corresponding path program 1 times [2018-01-25 03:08:32,736 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-25 03:08:32,737 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-25 03:08:32,737 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-25 03:08:32,737 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-25 03:08:32,737 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-25 03:08:32,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-25 03:08:32,753 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-25 03:08:33,040 WARN L146 SmtUtils]: Spent 173ms on a formula simplification. DAG size of input: 20 DAG size of output 16 [2018-01-25 03:08:33,125 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-25 03:08:33,126 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-25 03:08:33,126 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-01-25 03:08:33,126 INFO L252 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-01-25 03:08:33,126 INFO L409 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-01-25 03:08:33,126 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-01-25 03:08:33,127 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-01-25 03:08:33,127 INFO L87 Difference]: Start difference. First operand 178 states and 205 transitions. Second operand 6 states. [2018-01-25 03:08:33,513 WARN L143 SmtUtils]: Spent 127ms on a formula simplification that was a NOOP. DAG size: 28 [2018-01-25 03:08:33,773 WARN L143 SmtUtils]: Spent 158ms on a formula simplification that was a NOOP. DAG size: 30 [2018-01-25 03:08:34,627 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-25 03:08:34,627 INFO L93 Difference]: Finished difference Result 389 states and 450 transitions. [2018-01-25 03:08:34,627 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-01-25 03:08:34,627 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 25 [2018-01-25 03:08:34,627 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-25 03:08:34,628 INFO L225 Difference]: With dead ends: 389 [2018-01-25 03:08:34,628 INFO L226 Difference]: Without dead ends: 221 [2018-01-25 03:08:34,629 INFO L525 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 3 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-01-25 03:08:34,630 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 221 states. [2018-01-25 03:08:34,636 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 221 to 194. [2018-01-25 03:08:34,636 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 194 states. [2018-01-25 03:08:34,637 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 194 states to 194 states and 226 transitions. [2018-01-25 03:08:34,637 INFO L78 Accepts]: Start accepts. Automaton has 194 states and 226 transitions. Word has length 25 [2018-01-25 03:08:34,637 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-25 03:08:34,638 INFO L432 AbstractCegarLoop]: Abstraction has 194 states and 226 transitions. [2018-01-25 03:08:34,638 INFO L433 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-01-25 03:08:34,638 INFO L276 IsEmpty]: Start isEmpty. Operand 194 states and 226 transitions. [2018-01-25 03:08:34,638 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2018-01-25 03:08:34,639 INFO L314 BasicCegarLoop]: Found error trace [2018-01-25 03:08:34,639 INFO L322 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-25 03:08:34,639 INFO L371 AbstractCegarLoop]: === Iteration 12 === [mainErr51RequiresViolation, mainErr69RequiresViolation, mainErr26RequiresViolation, mainErr54RequiresViolation, mainErr66RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr31RequiresViolation, mainErr46RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr58RequiresViolation, mainErr62RequiresViolation, mainErr15RequiresViolation, mainErr49RequiresViolation, mainErr12RequiresViolation, mainErr71RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr55RequiresViolation, mainErr65RequiresViolation, mainErr70RequiresViolation, mainErr17RequiresViolation, mainErr74EnsuresViolation, mainErr42RequiresViolation, mainErr30RequiresViolation, mainErr11RequiresViolation, mainErr57RequiresViolation, mainErr63RequiresViolation, mainErr24RequiresViolation, mainErr44RequiresViolation, mainErr10RequiresViolation, mainErr43RequiresViolation, mainErr4RequiresViolation, mainErr50RequiresViolation, mainErr37RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr36RequiresViolation, mainErr61RequiresViolation, mainErr59RequiresViolation, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr21RequiresViolation, mainErr41RequiresViolation, mainErr56RequiresViolation, mainErr64RequiresViolation, mainErr48RequiresViolation, mainErr72RequiresViolation, mainErr39RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr52RequiresViolation, mainErr68RequiresViolation, mainErr45RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr60RequiresViolation, mainErr9RequiresViolation, mainErr67RequiresViolation, mainErr53RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr8RequiresViolation, mainErr34RequiresViolation, mainErr47RequiresViolation, mainErr73RequiresViolation, mainErr14RequiresViolation, mainErr40RequiresViolation]=== [2018-01-25 03:08:34,639 INFO L82 PathProgramCache]: Analyzing trace with hash 561139669, now seen corresponding path program 1 times [2018-01-25 03:08:34,639 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-25 03:08:34,640 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-25 03:08:34,640 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-25 03:08:34,640 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-25 03:08:34,640 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-25 03:08:34,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-25 03:08:34,658 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-25 03:08:34,943 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-25 03:08:34,944 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-25 03:08:34,944 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2018-01-25 03:08:34,944 INFO L252 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-01-25 03:08:34,944 INFO L409 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-01-25 03:08:34,944 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-01-25 03:08:34,944 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2018-01-25 03:08:34,945 INFO L87 Difference]: Start difference. First operand 194 states and 226 transitions. Second operand 12 states. [2018-01-25 03:08:35,691 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-25 03:08:35,691 INFO L93 Difference]: Finished difference Result 211 states and 246 transitions. [2018-01-25 03:08:35,692 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2018-01-25 03:08:35,692 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 26 [2018-01-25 03:08:35,692 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-25 03:08:35,693 INFO L225 Difference]: With dead ends: 211 [2018-01-25 03:08:35,693 INFO L226 Difference]: Without dead ends: 210 [2018-01-25 03:08:35,693 INFO L525 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 57 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=144, Invalid=408, Unknown=0, NotChecked=0, Total=552 [2018-01-25 03:08:35,694 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 210 states. [2018-01-25 03:08:35,699 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 210 to 195. [2018-01-25 03:08:35,700 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 195 states. [2018-01-25 03:08:35,701 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 195 states to 195 states and 228 transitions. [2018-01-25 03:08:35,701 INFO L78 Accepts]: Start accepts. Automaton has 195 states and 228 transitions. Word has length 26 [2018-01-25 03:08:35,702 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-25 03:08:35,702 INFO L432 AbstractCegarLoop]: Abstraction has 195 states and 228 transitions. [2018-01-25 03:08:35,702 INFO L433 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-01-25 03:08:35,702 INFO L276 IsEmpty]: Start isEmpty. Operand 195 states and 228 transitions. [2018-01-25 03:08:35,703 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2018-01-25 03:08:35,703 INFO L314 BasicCegarLoop]: Found error trace [2018-01-25 03:08:35,703 INFO L322 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-25 03:08:35,704 INFO L371 AbstractCegarLoop]: === Iteration 13 === [mainErr51RequiresViolation, mainErr69RequiresViolation, mainErr26RequiresViolation, mainErr54RequiresViolation, mainErr66RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr31RequiresViolation, mainErr46RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr58RequiresViolation, mainErr62RequiresViolation, mainErr15RequiresViolation, mainErr49RequiresViolation, mainErr12RequiresViolation, mainErr71RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr55RequiresViolation, mainErr65RequiresViolation, mainErr70RequiresViolation, mainErr17RequiresViolation, mainErr74EnsuresViolation, mainErr42RequiresViolation, mainErr30RequiresViolation, mainErr11RequiresViolation, mainErr57RequiresViolation, mainErr63RequiresViolation, mainErr24RequiresViolation, mainErr44RequiresViolation, mainErr10RequiresViolation, mainErr43RequiresViolation, mainErr4RequiresViolation, mainErr50RequiresViolation, mainErr37RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr36RequiresViolation, mainErr61RequiresViolation, mainErr59RequiresViolation, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr21RequiresViolation, mainErr41RequiresViolation, mainErr56RequiresViolation, mainErr64RequiresViolation, mainErr48RequiresViolation, mainErr72RequiresViolation, mainErr39RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr52RequiresViolation, mainErr68RequiresViolation, mainErr45RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr60RequiresViolation, mainErr9RequiresViolation, mainErr67RequiresViolation, mainErr53RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr8RequiresViolation, mainErr34RequiresViolation, mainErr47RequiresViolation, mainErr73RequiresViolation, mainErr14RequiresViolation, mainErr40RequiresViolation]=== [2018-01-25 03:08:35,704 INFO L82 PathProgramCache]: Analyzing trace with hash 561139670, now seen corresponding path program 1 times [2018-01-25 03:08:35,704 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-25 03:08:35,705 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-25 03:08:35,705 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-25 03:08:35,705 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-25 03:08:35,705 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-25 03:08:35,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-25 03:08:35,724 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-25 03:08:36,169 WARN L146 SmtUtils]: Spent 220ms on a formula simplification. DAG size of input: 14 DAG size of output 13 [2018-01-25 03:08:36,468 WARN L146 SmtUtils]: Spent 141ms on a formula simplification. DAG size of input: 17 DAG size of output 12 [2018-01-25 03:08:36,564 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-25 03:08:36,564 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-25 03:08:36,565 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2018-01-25 03:08:36,565 INFO L252 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-01-25 03:08:36,565 INFO L409 AbstractCegarLoop]: Interpolant automaton has 13 states [2018-01-25 03:08:36,565 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2018-01-25 03:08:36,565 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=128, Unknown=0, NotChecked=0, Total=156 [2018-01-25 03:08:36,566 INFO L87 Difference]: Start difference. First operand 195 states and 228 transitions. Second operand 13 states. [2018-01-25 03:08:38,151 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-25 03:08:38,151 INFO L93 Difference]: Finished difference Result 266 states and 294 transitions. [2018-01-25 03:08:38,152 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2018-01-25 03:08:38,152 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 26 [2018-01-25 03:08:38,152 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-25 03:08:38,153 INFO L225 Difference]: With dead ends: 266 [2018-01-25 03:08:38,154 INFO L226 Difference]: Without dead ends: 263 [2018-01-25 03:08:38,154 INFO L525 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 100 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=141, Invalid=561, Unknown=0, NotChecked=0, Total=702 [2018-01-25 03:08:38,155 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 263 states. [2018-01-25 03:08:38,163 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 263 to 199. [2018-01-25 03:08:38,163 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 199 states. [2018-01-25 03:08:38,165 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 199 states to 199 states and 233 transitions. [2018-01-25 03:08:38,165 INFO L78 Accepts]: Start accepts. Automaton has 199 states and 233 transitions. Word has length 26 [2018-01-25 03:08:38,165 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-25 03:08:38,165 INFO L432 AbstractCegarLoop]: Abstraction has 199 states and 233 transitions. [2018-01-25 03:08:38,166 INFO L433 AbstractCegarLoop]: Interpolant automaton has 13 states. [2018-01-25 03:08:38,166 INFO L276 IsEmpty]: Start isEmpty. Operand 199 states and 233 transitions. [2018-01-25 03:08:38,167 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2018-01-25 03:08:38,167 INFO L314 BasicCegarLoop]: Found error trace [2018-01-25 03:08:38,167 INFO L322 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-25 03:08:38,167 INFO L371 AbstractCegarLoop]: === Iteration 14 === [mainErr51RequiresViolation, mainErr69RequiresViolation, mainErr26RequiresViolation, mainErr54RequiresViolation, mainErr66RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr31RequiresViolation, mainErr46RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr58RequiresViolation, mainErr62RequiresViolation, mainErr15RequiresViolation, mainErr49RequiresViolation, mainErr12RequiresViolation, mainErr71RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr55RequiresViolation, mainErr65RequiresViolation, mainErr70RequiresViolation, mainErr17RequiresViolation, mainErr74EnsuresViolation, mainErr42RequiresViolation, mainErr30RequiresViolation, mainErr11RequiresViolation, mainErr57RequiresViolation, mainErr63RequiresViolation, mainErr24RequiresViolation, mainErr44RequiresViolation, mainErr10RequiresViolation, mainErr43RequiresViolation, mainErr4RequiresViolation, mainErr50RequiresViolation, mainErr37RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr36RequiresViolation, mainErr61RequiresViolation, mainErr59RequiresViolation, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr21RequiresViolation, mainErr41RequiresViolation, mainErr56RequiresViolation, mainErr64RequiresViolation, mainErr48RequiresViolation, mainErr72RequiresViolation, mainErr39RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr52RequiresViolation, mainErr68RequiresViolation, mainErr45RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr60RequiresViolation, mainErr9RequiresViolation, mainErr67RequiresViolation, mainErr53RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr8RequiresViolation, mainErr34RequiresViolation, mainErr47RequiresViolation, mainErr73RequiresViolation, mainErr14RequiresViolation, mainErr40RequiresViolation]=== [2018-01-25 03:08:38,168 INFO L82 PathProgramCache]: Analyzing trace with hash -106162311, now seen corresponding path program 1 times [2018-01-25 03:08:38,168 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-25 03:08:38,169 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-25 03:08:38,169 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-25 03:08:38,169 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-25 03:08:38,169 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-25 03:08:38,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-25 03:08:38,181 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-25 03:08:38,250 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-25 03:08:38,251 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-25 03:08:38,251 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-01-25 03:08:38,251 INFO L252 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-01-25 03:08:38,251 INFO L409 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-01-25 03:08:38,251 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-01-25 03:08:38,252 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-01-25 03:08:38,252 INFO L87 Difference]: Start difference. First operand 199 states and 233 transitions. Second operand 5 states. [2018-01-25 03:08:38,670 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-25 03:08:38,670 INFO L93 Difference]: Finished difference Result 293 states and 346 transitions. [2018-01-25 03:08:38,670 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-01-25 03:08:38,670 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 26 [2018-01-25 03:08:38,671 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-25 03:08:38,672 INFO L225 Difference]: With dead ends: 293 [2018-01-25 03:08:38,672 INFO L226 Difference]: Without dead ends: 292 [2018-01-25 03:08:38,673 INFO L525 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2018-01-25 03:08:38,673 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 292 states. [2018-01-25 03:08:38,682 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 292 to 198. [2018-01-25 03:08:38,682 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 198 states. [2018-01-25 03:08:38,683 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 198 states to 198 states and 231 transitions. [2018-01-25 03:08:38,683 INFO L78 Accepts]: Start accepts. Automaton has 198 states and 231 transitions. Word has length 26 [2018-01-25 03:08:38,684 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-25 03:08:38,684 INFO L432 AbstractCegarLoop]: Abstraction has 198 states and 231 transitions. [2018-01-25 03:08:38,684 INFO L433 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-01-25 03:08:38,684 INFO L276 IsEmpty]: Start isEmpty. Operand 198 states and 231 transitions. [2018-01-25 03:08:38,685 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2018-01-25 03:08:38,685 INFO L314 BasicCegarLoop]: Found error trace [2018-01-25 03:08:38,685 INFO L322 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-25 03:08:38,685 INFO L371 AbstractCegarLoop]: === Iteration 15 === [mainErr51RequiresViolation, mainErr69RequiresViolation, mainErr26RequiresViolation, mainErr54RequiresViolation, mainErr66RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr31RequiresViolation, mainErr46RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr58RequiresViolation, mainErr62RequiresViolation, mainErr15RequiresViolation, mainErr49RequiresViolation, mainErr12RequiresViolation, mainErr71RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr55RequiresViolation, mainErr65RequiresViolation, mainErr70RequiresViolation, mainErr17RequiresViolation, mainErr74EnsuresViolation, mainErr42RequiresViolation, mainErr30RequiresViolation, mainErr11RequiresViolation, mainErr57RequiresViolation, mainErr63RequiresViolation, mainErr24RequiresViolation, mainErr44RequiresViolation, mainErr10RequiresViolation, mainErr43RequiresViolation, mainErr4RequiresViolation, mainErr50RequiresViolation, mainErr37RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr36RequiresViolation, mainErr61RequiresViolation, mainErr59RequiresViolation, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr21RequiresViolation, mainErr41RequiresViolation, mainErr56RequiresViolation, mainErr64RequiresViolation, mainErr48RequiresViolation, mainErr72RequiresViolation, mainErr39RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr52RequiresViolation, mainErr68RequiresViolation, mainErr45RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr60RequiresViolation, mainErr9RequiresViolation, mainErr67RequiresViolation, mainErr53RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr8RequiresViolation, mainErr34RequiresViolation, mainErr47RequiresViolation, mainErr73RequiresViolation, mainErr14RequiresViolation, mainErr40RequiresViolation]=== [2018-01-25 03:08:38,685 INFO L82 PathProgramCache]: Analyzing trace with hash -106162310, now seen corresponding path program 1 times [2018-01-25 03:08:38,685 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-25 03:08:38,686 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-25 03:08:38,686 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-25 03:08:38,686 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-25 03:08:38,686 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-25 03:08:38,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-25 03:08:38,698 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-25 03:08:38,838 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-25 03:08:38,839 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-25 03:08:38,839 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-01-25 03:08:38,839 INFO L252 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-01-25 03:08:38,839 INFO L409 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-01-25 03:08:38,840 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-01-25 03:08:38,840 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-01-25 03:08:38,840 INFO L87 Difference]: Start difference. First operand 198 states and 231 transitions. Second operand 5 states. [2018-01-25 03:08:39,447 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-25 03:08:39,447 INFO L93 Difference]: Finished difference Result 282 states and 334 transitions. [2018-01-25 03:08:39,448 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-01-25 03:08:39,448 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 26 [2018-01-25 03:08:39,448 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-25 03:08:39,449 INFO L225 Difference]: With dead ends: 282 [2018-01-25 03:08:39,449 INFO L226 Difference]: Without dead ends: 281 [2018-01-25 03:08:39,449 INFO L525 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2018-01-25 03:08:39,450 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 281 states. [2018-01-25 03:08:39,459 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 281 to 197. [2018-01-25 03:08:39,459 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 197 states. [2018-01-25 03:08:39,461 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 197 states to 197 states and 229 transitions. [2018-01-25 03:08:39,461 INFO L78 Accepts]: Start accepts. Automaton has 197 states and 229 transitions. Word has length 26 [2018-01-25 03:08:39,461 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-25 03:08:39,461 INFO L432 AbstractCegarLoop]: Abstraction has 197 states and 229 transitions. [2018-01-25 03:08:39,462 INFO L433 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-01-25 03:08:39,462 INFO L276 IsEmpty]: Start isEmpty. Operand 197 states and 229 transitions. [2018-01-25 03:08:39,462 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2018-01-25 03:08:39,462 INFO L314 BasicCegarLoop]: Found error trace [2018-01-25 03:08:39,463 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] [2018-01-25 03:08:39,463 INFO L371 AbstractCegarLoop]: === Iteration 16 === [mainErr51RequiresViolation, mainErr69RequiresViolation, mainErr26RequiresViolation, mainErr54RequiresViolation, mainErr66RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr31RequiresViolation, mainErr46RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr58RequiresViolation, mainErr62RequiresViolation, mainErr15RequiresViolation, mainErr49RequiresViolation, mainErr12RequiresViolation, mainErr71RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr55RequiresViolation, mainErr65RequiresViolation, mainErr70RequiresViolation, mainErr17RequiresViolation, mainErr74EnsuresViolation, mainErr42RequiresViolation, mainErr30RequiresViolation, mainErr11RequiresViolation, mainErr57RequiresViolation, mainErr63RequiresViolation, mainErr24RequiresViolation, mainErr44RequiresViolation, mainErr10RequiresViolation, mainErr43RequiresViolation, mainErr4RequiresViolation, mainErr50RequiresViolation, mainErr37RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr36RequiresViolation, mainErr61RequiresViolation, mainErr59RequiresViolation, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr21RequiresViolation, mainErr41RequiresViolation, mainErr56RequiresViolation, mainErr64RequiresViolation, mainErr48RequiresViolation, mainErr72RequiresViolation, mainErr39RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr52RequiresViolation, mainErr68RequiresViolation, mainErr45RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr60RequiresViolation, mainErr9RequiresViolation, mainErr67RequiresViolation, mainErr53RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr8RequiresViolation, mainErr34RequiresViolation, mainErr47RequiresViolation, mainErr73RequiresViolation, mainErr14RequiresViolation, mainErr40RequiresViolation]=== [2018-01-25 03:08:39,463 INFO L82 PathProgramCache]: Analyzing trace with hash -1585416537, now seen corresponding path program 1 times [2018-01-25 03:08:39,463 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-25 03:08:39,464 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-25 03:08:39,464 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-25 03:08:39,464 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-25 03:08:39,464 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-25 03:08:39,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-25 03:08:39,477 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-25 03:08:39,588 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-25 03:08:39,588 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-25 03:08:39,588 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2018-01-25 03:08:39,588 INFO L252 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-01-25 03:08:39,589 INFO L409 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-01-25 03:08:39,589 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-01-25 03:08:39,589 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2018-01-25 03:08:39,589 INFO L87 Difference]: Start difference. First operand 197 states and 229 transitions. Second operand 9 states. [2018-01-25 03:08:40,401 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-25 03:08:40,401 INFO L93 Difference]: Finished difference Result 244 states and 286 transitions. [2018-01-25 03:08:40,401 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-01-25 03:08:40,402 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 29 [2018-01-25 03:08:40,402 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-25 03:08:40,403 INFO L225 Difference]: With dead ends: 244 [2018-01-25 03:08:40,403 INFO L226 Difference]: Without dead ends: 243 [2018-01-25 03:08:40,403 INFO L525 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=67, Invalid=143, Unknown=0, NotChecked=0, Total=210 [2018-01-25 03:08:40,403 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 243 states. [2018-01-25 03:08:40,411 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 243 to 196. [2018-01-25 03:08:40,411 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 196 states. [2018-01-25 03:08:40,413 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 196 states to 196 states and 227 transitions. [2018-01-25 03:08:40,413 INFO L78 Accepts]: Start accepts. Automaton has 196 states and 227 transitions. Word has length 29 [2018-01-25 03:08:40,413 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-25 03:08:40,413 INFO L432 AbstractCegarLoop]: Abstraction has 196 states and 227 transitions. [2018-01-25 03:08:40,413 INFO L433 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-01-25 03:08:40,414 INFO L276 IsEmpty]: Start isEmpty. Operand 196 states and 227 transitions. [2018-01-25 03:08:40,414 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2018-01-25 03:08:40,414 INFO L314 BasicCegarLoop]: Found error trace [2018-01-25 03:08:40,415 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] [2018-01-25 03:08:40,415 INFO L371 AbstractCegarLoop]: === Iteration 17 === [mainErr51RequiresViolation, mainErr69RequiresViolation, mainErr26RequiresViolation, mainErr54RequiresViolation, mainErr66RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr31RequiresViolation, mainErr46RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr58RequiresViolation, mainErr62RequiresViolation, mainErr15RequiresViolation, mainErr49RequiresViolation, mainErr12RequiresViolation, mainErr71RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr55RequiresViolation, mainErr65RequiresViolation, mainErr70RequiresViolation, mainErr17RequiresViolation, mainErr74EnsuresViolation, mainErr42RequiresViolation, mainErr30RequiresViolation, mainErr11RequiresViolation, mainErr57RequiresViolation, mainErr63RequiresViolation, mainErr24RequiresViolation, mainErr44RequiresViolation, mainErr10RequiresViolation, mainErr43RequiresViolation, mainErr4RequiresViolation, mainErr50RequiresViolation, mainErr37RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr36RequiresViolation, mainErr61RequiresViolation, mainErr59RequiresViolation, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr21RequiresViolation, mainErr41RequiresViolation, mainErr56RequiresViolation, mainErr64RequiresViolation, mainErr48RequiresViolation, mainErr72RequiresViolation, mainErr39RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr52RequiresViolation, mainErr68RequiresViolation, mainErr45RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr60RequiresViolation, mainErr9RequiresViolation, mainErr67RequiresViolation, mainErr53RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr8RequiresViolation, mainErr34RequiresViolation, mainErr47RequiresViolation, mainErr73RequiresViolation, mainErr14RequiresViolation, mainErr40RequiresViolation]=== [2018-01-25 03:08:40,415 INFO L82 PathProgramCache]: Analyzing trace with hash -1585416536, now seen corresponding path program 1 times [2018-01-25 03:08:40,415 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-25 03:08:40,416 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-25 03:08:40,416 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-25 03:08:40,416 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-25 03:08:40,416 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-25 03:08:40,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-25 03:08:40,430 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-25 03:08:40,660 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-25 03:08:40,661 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-25 03:08:40,661 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2018-01-25 03:08:40,661 INFO L252 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-01-25 03:08:40,662 INFO L409 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-01-25 03:08:40,662 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-01-25 03:08:40,662 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2018-01-25 03:08:40,662 INFO L87 Difference]: Start difference. First operand 196 states and 227 transitions. Second operand 9 states. [2018-01-25 03:08:41,179 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-25 03:08:41,179 INFO L93 Difference]: Finished difference Result 243 states and 284 transitions. [2018-01-25 03:08:41,179 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-01-25 03:08:41,180 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 29 [2018-01-25 03:08:41,180 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-25 03:08:41,181 INFO L225 Difference]: With dead ends: 243 [2018-01-25 03:08:41,181 INFO L226 Difference]: Without dead ends: 242 [2018-01-25 03:08:41,181 INFO L525 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=67, Invalid=143, Unknown=0, NotChecked=0, Total=210 [2018-01-25 03:08:41,181 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 242 states. [2018-01-25 03:08:41,197 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 242 to 195. [2018-01-25 03:08:41,198 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 195 states. [2018-01-25 03:08:41,199 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 195 states to 195 states and 225 transitions. [2018-01-25 03:08:41,199 INFO L78 Accepts]: Start accepts. Automaton has 195 states and 225 transitions. Word has length 29 [2018-01-25 03:08:41,199 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-25 03:08:41,199 INFO L432 AbstractCegarLoop]: Abstraction has 195 states and 225 transitions. [2018-01-25 03:08:41,199 INFO L433 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-01-25 03:08:41,200 INFO L276 IsEmpty]: Start isEmpty. Operand 195 states and 225 transitions. [2018-01-25 03:08:41,200 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2018-01-25 03:08:41,200 INFO L314 BasicCegarLoop]: Found error trace [2018-01-25 03:08:41,200 INFO L322 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-25 03:08:41,200 INFO L371 AbstractCegarLoop]: === Iteration 18 === [mainErr51RequiresViolation, mainErr69RequiresViolation, mainErr26RequiresViolation, mainErr54RequiresViolation, mainErr66RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr31RequiresViolation, mainErr46RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr58RequiresViolation, mainErr62RequiresViolation, mainErr15RequiresViolation, mainErr49RequiresViolation, mainErr12RequiresViolation, mainErr71RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr55RequiresViolation, mainErr65RequiresViolation, mainErr70RequiresViolation, mainErr17RequiresViolation, mainErr74EnsuresViolation, mainErr42RequiresViolation, mainErr30RequiresViolation, mainErr11RequiresViolation, mainErr57RequiresViolation, mainErr63RequiresViolation, mainErr24RequiresViolation, mainErr44RequiresViolation, mainErr10RequiresViolation, mainErr43RequiresViolation, mainErr4RequiresViolation, mainErr50RequiresViolation, mainErr37RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr36RequiresViolation, mainErr61RequiresViolation, mainErr59RequiresViolation, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr21RequiresViolation, mainErr41RequiresViolation, mainErr56RequiresViolation, mainErr64RequiresViolation, mainErr48RequiresViolation, mainErr72RequiresViolation, mainErr39RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr52RequiresViolation, mainErr68RequiresViolation, mainErr45RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr60RequiresViolation, mainErr9RequiresViolation, mainErr67RequiresViolation, mainErr53RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr8RequiresViolation, mainErr34RequiresViolation, mainErr47RequiresViolation, mainErr73RequiresViolation, mainErr14RequiresViolation, mainErr40RequiresViolation]=== [2018-01-25 03:08:41,201 INFO L82 PathProgramCache]: Analyzing trace with hash 2109118679, now seen corresponding path program 1 times [2018-01-25 03:08:41,201 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-25 03:08:41,202 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-25 03:08:41,202 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-25 03:08:41,202 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-25 03:08:41,202 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-25 03:08:41,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-25 03:08:41,214 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-25 03:08:41,243 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-25 03:08:41,244 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-25 03:08:41,244 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-01-25 03:08:41,244 INFO L252 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-01-25 03:08:41,244 INFO L409 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-01-25 03:08:41,245 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-01-25 03:08:41,245 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-01-25 03:08:41,245 INFO L87 Difference]: Start difference. First operand 195 states and 225 transitions. Second operand 4 states. [2018-01-25 03:08:41,400 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-25 03:08:41,401 INFO L93 Difference]: Finished difference Result 212 states and 243 transitions. [2018-01-25 03:08:41,401 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-01-25 03:08:41,401 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 30 [2018-01-25 03:08:41,401 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-25 03:08:41,402 INFO L225 Difference]: With dead ends: 212 [2018-01-25 03:08:41,402 INFO L226 Difference]: Without dead ends: 211 [2018-01-25 03:08:41,402 INFO L525 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-01-25 03:08:41,403 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 211 states. [2018-01-25 03:08:41,407 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 211 to 194. [2018-01-25 03:08:41,407 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 194 states. [2018-01-25 03:08:41,407 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 194 states to 194 states and 224 transitions. [2018-01-25 03:08:41,408 INFO L78 Accepts]: Start accepts. Automaton has 194 states and 224 transitions. Word has length 30 [2018-01-25 03:08:41,408 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-25 03:08:41,408 INFO L432 AbstractCegarLoop]: Abstraction has 194 states and 224 transitions. [2018-01-25 03:08:41,408 INFO L433 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-01-25 03:08:41,408 INFO L276 IsEmpty]: Start isEmpty. Operand 194 states and 224 transitions. [2018-01-25 03:08:41,408 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2018-01-25 03:08:41,408 INFO L314 BasicCegarLoop]: Found error trace [2018-01-25 03:08:41,408 INFO L322 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-25 03:08:41,409 INFO L371 AbstractCegarLoop]: === Iteration 19 === [mainErr51RequiresViolation, mainErr69RequiresViolation, mainErr26RequiresViolation, mainErr54RequiresViolation, mainErr66RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr31RequiresViolation, mainErr46RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr58RequiresViolation, mainErr62RequiresViolation, mainErr15RequiresViolation, mainErr49RequiresViolation, mainErr12RequiresViolation, mainErr71RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr55RequiresViolation, mainErr65RequiresViolation, mainErr70RequiresViolation, mainErr17RequiresViolation, mainErr74EnsuresViolation, mainErr42RequiresViolation, mainErr30RequiresViolation, mainErr11RequiresViolation, mainErr57RequiresViolation, mainErr63RequiresViolation, mainErr24RequiresViolation, mainErr44RequiresViolation, mainErr10RequiresViolation, mainErr43RequiresViolation, mainErr4RequiresViolation, mainErr50RequiresViolation, mainErr37RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr36RequiresViolation, mainErr61RequiresViolation, mainErr59RequiresViolation, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr21RequiresViolation, mainErr41RequiresViolation, mainErr56RequiresViolation, mainErr64RequiresViolation, mainErr48RequiresViolation, mainErr72RequiresViolation, mainErr39RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr52RequiresViolation, mainErr68RequiresViolation, mainErr45RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr60RequiresViolation, mainErr9RequiresViolation, mainErr67RequiresViolation, mainErr53RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr8RequiresViolation, mainErr34RequiresViolation, mainErr47RequiresViolation, mainErr73RequiresViolation, mainErr14RequiresViolation, mainErr40RequiresViolation]=== [2018-01-25 03:08:41,409 INFO L82 PathProgramCache]: Analyzing trace with hash 2109118680, now seen corresponding path program 1 times [2018-01-25 03:08:41,409 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-25 03:08:41,410 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-25 03:08:41,410 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-25 03:08:41,410 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-25 03:08:41,410 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-25 03:08:41,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-25 03:08:41,421 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-25 03:08:41,465 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-25 03:08:41,466 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-25 03:08:41,466 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-01-25 03:08:41,466 INFO L252 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-01-25 03:08:41,466 INFO L409 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-01-25 03:08:41,467 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-01-25 03:08:41,467 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-01-25 03:08:41,467 INFO L87 Difference]: Start difference. First operand 194 states and 224 transitions. Second operand 4 states. [2018-01-25 03:08:41,676 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-25 03:08:41,677 INFO L93 Difference]: Finished difference Result 241 states and 274 transitions. [2018-01-25 03:08:41,677 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-01-25 03:08:41,677 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 30 [2018-01-25 03:08:41,677 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-25 03:08:41,678 INFO L225 Difference]: With dead ends: 241 [2018-01-25 03:08:41,678 INFO L226 Difference]: Without dead ends: 239 [2018-01-25 03:08:41,678 INFO L525 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-01-25 03:08:41,679 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 239 states. [2018-01-25 03:08:41,685 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 239 to 192. [2018-01-25 03:08:41,685 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 192 states. [2018-01-25 03:08:41,687 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 192 states to 192 states and 222 transitions. [2018-01-25 03:08:41,687 INFO L78 Accepts]: Start accepts. Automaton has 192 states and 222 transitions. Word has length 30 [2018-01-25 03:08:41,688 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-25 03:08:41,688 INFO L432 AbstractCegarLoop]: Abstraction has 192 states and 222 transitions. [2018-01-25 03:08:41,688 INFO L433 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-01-25 03:08:41,688 INFO L276 IsEmpty]: Start isEmpty. Operand 192 states and 222 transitions. [2018-01-25 03:08:41,688 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2018-01-25 03:08:41,688 INFO L314 BasicCegarLoop]: Found error trace [2018-01-25 03:08:41,689 INFO L322 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-25 03:08:41,689 INFO L371 AbstractCegarLoop]: === Iteration 20 === [mainErr51RequiresViolation, mainErr69RequiresViolation, mainErr26RequiresViolation, mainErr54RequiresViolation, mainErr66RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr31RequiresViolation, mainErr46RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr58RequiresViolation, mainErr62RequiresViolation, mainErr15RequiresViolation, mainErr49RequiresViolation, mainErr12RequiresViolation, mainErr71RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr55RequiresViolation, mainErr65RequiresViolation, mainErr70RequiresViolation, mainErr17RequiresViolation, mainErr74EnsuresViolation, mainErr42RequiresViolation, mainErr30RequiresViolation, mainErr11RequiresViolation, mainErr57RequiresViolation, mainErr63RequiresViolation, mainErr24RequiresViolation, mainErr44RequiresViolation, mainErr10RequiresViolation, mainErr43RequiresViolation, mainErr4RequiresViolation, mainErr50RequiresViolation, mainErr37RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr36RequiresViolation, mainErr61RequiresViolation, mainErr59RequiresViolation, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr21RequiresViolation, mainErr41RequiresViolation, mainErr56RequiresViolation, mainErr64RequiresViolation, mainErr48RequiresViolation, mainErr72RequiresViolation, mainErr39RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr52RequiresViolation, mainErr68RequiresViolation, mainErr45RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr60RequiresViolation, mainErr9RequiresViolation, mainErr67RequiresViolation, mainErr53RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr8RequiresViolation, mainErr34RequiresViolation, mainErr47RequiresViolation, mainErr73RequiresViolation, mainErr14RequiresViolation, mainErr40RequiresViolation]=== [2018-01-25 03:08:41,689 INFO L82 PathProgramCache]: Analyzing trace with hash -160241763, now seen corresponding path program 1 times [2018-01-25 03:08:41,689 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-25 03:08:41,690 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-25 03:08:41,690 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-25 03:08:41,690 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-25 03:08:41,690 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-25 03:08:41,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-25 03:08:41,700 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-25 03:08:41,747 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-25 03:08:41,747 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-25 03:08:41,747 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-01-25 03:08:41,748 INFO L252 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-01-25 03:08:41,748 INFO L409 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-01-25 03:08:41,748 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-01-25 03:08:41,748 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-01-25 03:08:41,748 INFO L87 Difference]: Start difference. First operand 192 states and 222 transitions. Second operand 5 states. [2018-01-25 03:08:42,098 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-25 03:08:42,098 INFO L93 Difference]: Finished difference Result 284 states and 331 transitions. [2018-01-25 03:08:42,099 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-01-25 03:08:42,099 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 30 [2018-01-25 03:08:42,099 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-25 03:08:42,100 INFO L225 Difference]: With dead ends: 284 [2018-01-25 03:08:42,100 INFO L226 Difference]: Without dead ends: 283 [2018-01-25 03:08:42,100 INFO L525 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2018-01-25 03:08:42,101 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 283 states. [2018-01-25 03:08:42,105 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 283 to 191. [2018-01-25 03:08:42,105 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 191 states. [2018-01-25 03:08:42,106 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 191 states to 191 states and 220 transitions. [2018-01-25 03:08:42,106 INFO L78 Accepts]: Start accepts. Automaton has 191 states and 220 transitions. Word has length 30 [2018-01-25 03:08:42,106 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-25 03:08:42,106 INFO L432 AbstractCegarLoop]: Abstraction has 191 states and 220 transitions. [2018-01-25 03:08:42,106 INFO L433 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-01-25 03:08:42,106 INFO L276 IsEmpty]: Start isEmpty. Operand 191 states and 220 transitions. [2018-01-25 03:08:42,106 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2018-01-25 03:08:42,106 INFO L314 BasicCegarLoop]: Found error trace [2018-01-25 03:08:42,106 INFO L322 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-25 03:08:42,107 INFO L371 AbstractCegarLoop]: === Iteration 21 === [mainErr51RequiresViolation, mainErr69RequiresViolation, mainErr26RequiresViolation, mainErr54RequiresViolation, mainErr66RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr31RequiresViolation, mainErr46RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr58RequiresViolation, mainErr62RequiresViolation, mainErr15RequiresViolation, mainErr49RequiresViolation, mainErr12RequiresViolation, mainErr71RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr55RequiresViolation, mainErr65RequiresViolation, mainErr70RequiresViolation, mainErr17RequiresViolation, mainErr74EnsuresViolation, mainErr42RequiresViolation, mainErr30RequiresViolation, mainErr11RequiresViolation, mainErr57RequiresViolation, mainErr63RequiresViolation, mainErr24RequiresViolation, mainErr44RequiresViolation, mainErr10RequiresViolation, mainErr43RequiresViolation, mainErr4RequiresViolation, mainErr50RequiresViolation, mainErr37RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr36RequiresViolation, mainErr61RequiresViolation, mainErr59RequiresViolation, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr21RequiresViolation, mainErr41RequiresViolation, mainErr56RequiresViolation, mainErr64RequiresViolation, mainErr48RequiresViolation, mainErr72RequiresViolation, mainErr39RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr52RequiresViolation, mainErr68RequiresViolation, mainErr45RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr60RequiresViolation, mainErr9RequiresViolation, mainErr67RequiresViolation, mainErr53RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr8RequiresViolation, mainErr34RequiresViolation, mainErr47RequiresViolation, mainErr73RequiresViolation, mainErr14RequiresViolation, mainErr40RequiresViolation]=== [2018-01-25 03:08:42,107 INFO L82 PathProgramCache]: Analyzing trace with hash -160241762, now seen corresponding path program 1 times [2018-01-25 03:08:42,107 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-25 03:08:42,107 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-25 03:08:42,108 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-25 03:08:42,108 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-25 03:08:42,108 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-25 03:08:42,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-25 03:08:42,118 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-25 03:08:42,246 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-25 03:08:42,246 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-25 03:08:42,246 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-01-25 03:08:42,246 INFO L252 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-01-25 03:08:42,247 INFO L409 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-01-25 03:08:42,247 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-01-25 03:08:42,247 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-01-25 03:08:42,247 INFO L87 Difference]: Start difference. First operand 191 states and 220 transitions. Second operand 5 states. [2018-01-25 03:08:42,529 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-25 03:08:42,529 INFO L93 Difference]: Finished difference Result 273 states and 319 transitions. [2018-01-25 03:08:42,529 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-01-25 03:08:42,529 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 30 [2018-01-25 03:08:42,530 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-25 03:08:42,531 INFO L225 Difference]: With dead ends: 273 [2018-01-25 03:08:42,531 INFO L226 Difference]: Without dead ends: 272 [2018-01-25 03:08:42,531 INFO L525 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2018-01-25 03:08:42,531 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 272 states. [2018-01-25 03:08:42,539 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 272 to 190. [2018-01-25 03:08:42,539 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 190 states. [2018-01-25 03:08:42,541 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 190 states to 190 states and 218 transitions. [2018-01-25 03:08:42,542 INFO L78 Accepts]: Start accepts. Automaton has 190 states and 218 transitions. Word has length 30 [2018-01-25 03:08:42,542 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-25 03:08:42,542 INFO L432 AbstractCegarLoop]: Abstraction has 190 states and 218 transitions. [2018-01-25 03:08:42,542 INFO L433 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-01-25 03:08:42,542 INFO L276 IsEmpty]: Start isEmpty. Operand 190 states and 218 transitions. [2018-01-25 03:08:42,543 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2018-01-25 03:08:42,543 INFO L314 BasicCegarLoop]: Found error trace [2018-01-25 03:08:42,543 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] [2018-01-25 03:08:42,543 INFO L371 AbstractCegarLoop]: === Iteration 22 === [mainErr51RequiresViolation, mainErr69RequiresViolation, mainErr26RequiresViolation, mainErr54RequiresViolation, mainErr66RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr31RequiresViolation, mainErr46RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr58RequiresViolation, mainErr62RequiresViolation, mainErr15RequiresViolation, mainErr49RequiresViolation, mainErr12RequiresViolation, mainErr71RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr55RequiresViolation, mainErr65RequiresViolation, mainErr70RequiresViolation, mainErr17RequiresViolation, mainErr74EnsuresViolation, mainErr42RequiresViolation, mainErr30RequiresViolation, mainErr11RequiresViolation, mainErr57RequiresViolation, mainErr63RequiresViolation, mainErr24RequiresViolation, mainErr44RequiresViolation, mainErr10RequiresViolation, mainErr43RequiresViolation, mainErr4RequiresViolation, mainErr50RequiresViolation, mainErr37RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr36RequiresViolation, mainErr61RequiresViolation, mainErr59RequiresViolation, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr21RequiresViolation, mainErr41RequiresViolation, mainErr56RequiresViolation, mainErr64RequiresViolation, mainErr48RequiresViolation, mainErr72RequiresViolation, mainErr39RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr52RequiresViolation, mainErr68RequiresViolation, mainErr45RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr60RequiresViolation, mainErr9RequiresViolation, mainErr67RequiresViolation, mainErr53RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr8RequiresViolation, mainErr34RequiresViolation, mainErr47RequiresViolation, mainErr73RequiresViolation, mainErr14RequiresViolation, mainErr40RequiresViolation]=== [2018-01-25 03:08:42,543 INFO L82 PathProgramCache]: Analyzing trace with hash 958169774, now seen corresponding path program 1 times [2018-01-25 03:08:42,544 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-25 03:08:42,545 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-25 03:08:42,545 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-25 03:08:42,545 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-25 03:08:42,545 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-25 03:08:42,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-25 03:08:42,559 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-25 03:08:42,628 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-25 03:08:42,628 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-25 03:08:42,628 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-01-25 03:08:42,628 INFO L252 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-01-25 03:08:42,629 INFO L409 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-01-25 03:08:42,629 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-01-25 03:08:42,629 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-01-25 03:08:42,629 INFO L87 Difference]: Start difference. First operand 190 states and 218 transitions. Second operand 4 states. [2018-01-25 03:08:42,949 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-25 03:08:42,949 INFO L93 Difference]: Finished difference Result 194 states and 223 transitions. [2018-01-25 03:08:42,949 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-01-25 03:08:42,950 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 31 [2018-01-25 03:08:42,950 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-25 03:08:42,951 INFO L225 Difference]: With dead ends: 194 [2018-01-25 03:08:42,951 INFO L226 Difference]: Without dead ends: 187 [2018-01-25 03:08:42,951 INFO L525 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-01-25 03:08:42,952 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 187 states. [2018-01-25 03:08:42,957 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 187 to 182. [2018-01-25 03:08:42,957 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 182 states. [2018-01-25 03:08:42,958 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 182 states to 182 states and 210 transitions. [2018-01-25 03:08:42,958 INFO L78 Accepts]: Start accepts. Automaton has 182 states and 210 transitions. Word has length 31 [2018-01-25 03:08:42,958 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-25 03:08:42,959 INFO L432 AbstractCegarLoop]: Abstraction has 182 states and 210 transitions. [2018-01-25 03:08:42,959 INFO L433 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-01-25 03:08:42,959 INFO L276 IsEmpty]: Start isEmpty. Operand 182 states and 210 transitions. [2018-01-25 03:08:42,959 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2018-01-25 03:08:42,959 INFO L314 BasicCegarLoop]: Found error trace [2018-01-25 03:08:42,960 INFO L322 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-25 03:08:42,960 INFO L371 AbstractCegarLoop]: === Iteration 23 === [mainErr51RequiresViolation, mainErr69RequiresViolation, mainErr26RequiresViolation, mainErr54RequiresViolation, mainErr66RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr31RequiresViolation, mainErr46RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr58RequiresViolation, mainErr62RequiresViolation, mainErr15RequiresViolation, mainErr49RequiresViolation, mainErr12RequiresViolation, mainErr71RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr55RequiresViolation, mainErr65RequiresViolation, mainErr70RequiresViolation, mainErr17RequiresViolation, mainErr74EnsuresViolation, mainErr42RequiresViolation, mainErr30RequiresViolation, mainErr11RequiresViolation, mainErr57RequiresViolation, mainErr63RequiresViolation, mainErr24RequiresViolation, mainErr44RequiresViolation, mainErr10RequiresViolation, mainErr43RequiresViolation, mainErr4RequiresViolation, mainErr50RequiresViolation, mainErr37RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr36RequiresViolation, mainErr61RequiresViolation, mainErr59RequiresViolation, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr21RequiresViolation, mainErr41RequiresViolation, mainErr56RequiresViolation, mainErr64RequiresViolation, mainErr48RequiresViolation, mainErr72RequiresViolation, mainErr39RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr52RequiresViolation, mainErr68RequiresViolation, mainErr45RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr60RequiresViolation, mainErr9RequiresViolation, mainErr67RequiresViolation, mainErr53RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr8RequiresViolation, mainErr34RequiresViolation, mainErr47RequiresViolation, mainErr73RequiresViolation, mainErr14RequiresViolation, mainErr40RequiresViolation]=== [2018-01-25 03:08:42,960 INFO L82 PathProgramCache]: Analyzing trace with hash 53737817, now seen corresponding path program 1 times [2018-01-25 03:08:42,960 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-25 03:08:42,961 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-25 03:08:42,961 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-25 03:08:42,961 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-25 03:08:42,961 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-25 03:08:42,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-25 03:08:42,972 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-25 03:08:42,994 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-25 03:08:42,994 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-25 03:08:42,994 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-01-25 03:08:42,994 INFO L252 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-01-25 03:08:42,995 INFO L409 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-01-25 03:08:42,995 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-01-25 03:08:42,995 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-01-25 03:08:42,995 INFO L87 Difference]: Start difference. First operand 182 states and 210 transitions. Second operand 4 states. [2018-01-25 03:08:43,465 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-25 03:08:43,465 INFO L93 Difference]: Finished difference Result 191 states and 220 transitions. [2018-01-25 03:08:43,466 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-01-25 03:08:43,467 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 32 [2018-01-25 03:08:43,468 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-25 03:08:43,469 INFO L225 Difference]: With dead ends: 191 [2018-01-25 03:08:43,469 INFO L226 Difference]: Without dead ends: 190 [2018-01-25 03:08:43,469 INFO L525 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-01-25 03:08:43,469 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 190 states. [2018-01-25 03:08:43,474 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 190 to 181. [2018-01-25 03:08:43,474 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 181 states. [2018-01-25 03:08:43,474 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 181 states to 181 states and 209 transitions. [2018-01-25 03:08:43,474 INFO L78 Accepts]: Start accepts. Automaton has 181 states and 209 transitions. Word has length 32 [2018-01-25 03:08:43,475 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-25 03:08:43,475 INFO L432 AbstractCegarLoop]: Abstraction has 181 states and 209 transitions. [2018-01-25 03:08:43,475 INFO L433 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-01-25 03:08:43,475 INFO L276 IsEmpty]: Start isEmpty. Operand 181 states and 209 transitions. [2018-01-25 03:08:43,475 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2018-01-25 03:08:43,475 INFO L314 BasicCegarLoop]: Found error trace [2018-01-25 03:08:43,475 INFO L322 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-25 03:08:43,475 INFO L371 AbstractCegarLoop]: === Iteration 24 === [mainErr51RequiresViolation, mainErr69RequiresViolation, mainErr26RequiresViolation, mainErr54RequiresViolation, mainErr66RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr31RequiresViolation, mainErr46RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr58RequiresViolation, mainErr62RequiresViolation, mainErr15RequiresViolation, mainErr49RequiresViolation, mainErr12RequiresViolation, mainErr71RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr55RequiresViolation, mainErr65RequiresViolation, mainErr70RequiresViolation, mainErr17RequiresViolation, mainErr74EnsuresViolation, mainErr42RequiresViolation, mainErr30RequiresViolation, mainErr11RequiresViolation, mainErr57RequiresViolation, mainErr63RequiresViolation, mainErr24RequiresViolation, mainErr44RequiresViolation, mainErr10RequiresViolation, mainErr43RequiresViolation, mainErr4RequiresViolation, mainErr50RequiresViolation, mainErr37RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr36RequiresViolation, mainErr61RequiresViolation, mainErr59RequiresViolation, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr21RequiresViolation, mainErr41RequiresViolation, mainErr56RequiresViolation, mainErr64RequiresViolation, mainErr48RequiresViolation, mainErr72RequiresViolation, mainErr39RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr52RequiresViolation, mainErr68RequiresViolation, mainErr45RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr60RequiresViolation, mainErr9RequiresViolation, mainErr67RequiresViolation, mainErr53RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr8RequiresViolation, mainErr34RequiresViolation, mainErr47RequiresViolation, mainErr73RequiresViolation, mainErr14RequiresViolation, mainErr40RequiresViolation]=== [2018-01-25 03:08:43,476 INFO L82 PathProgramCache]: Analyzing trace with hash 53737818, now seen corresponding path program 1 times [2018-01-25 03:08:43,476 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-25 03:08:43,476 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-25 03:08:43,476 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-25 03:08:43,477 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-25 03:08:43,477 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-25 03:08:43,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-25 03:08:43,485 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-25 03:08:43,587 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-25 03:08:43,587 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-25 03:08:43,587 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-01-25 03:08:43,587 INFO L252 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-01-25 03:08:43,588 INFO L409 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-01-25 03:08:43,588 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-01-25 03:08:43,588 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-01-25 03:08:43,588 INFO L87 Difference]: Start difference. First operand 181 states and 209 transitions. Second operand 4 states. [2018-01-25 03:08:44,195 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-25 03:08:44,195 INFO L93 Difference]: Finished difference Result 219 states and 249 transitions. [2018-01-25 03:08:44,196 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-01-25 03:08:44,196 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 32 [2018-01-25 03:08:44,196 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-25 03:08:44,197 INFO L225 Difference]: With dead ends: 219 [2018-01-25 03:08:44,197 INFO L226 Difference]: Without dead ends: 217 [2018-01-25 03:08:44,197 INFO L525 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-01-25 03:08:44,197 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 217 states. [2018-01-25 03:08:44,202 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 217 to 179. [2018-01-25 03:08:44,202 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 179 states. [2018-01-25 03:08:44,202 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 179 states to 179 states and 207 transitions. [2018-01-25 03:08:44,202 INFO L78 Accepts]: Start accepts. Automaton has 179 states and 207 transitions. Word has length 32 [2018-01-25 03:08:44,203 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-25 03:08:44,203 INFO L432 AbstractCegarLoop]: Abstraction has 179 states and 207 transitions. [2018-01-25 03:08:44,203 INFO L433 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-01-25 03:08:44,203 INFO L276 IsEmpty]: Start isEmpty. Operand 179 states and 207 transitions. [2018-01-25 03:08:44,203 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2018-01-25 03:08:44,203 INFO L314 BasicCegarLoop]: Found error trace [2018-01-25 03:08:44,203 INFO L322 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-25 03:08:44,203 INFO L371 AbstractCegarLoop]: === Iteration 25 === [mainErr51RequiresViolation, mainErr69RequiresViolation, mainErr26RequiresViolation, mainErr54RequiresViolation, mainErr66RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr31RequiresViolation, mainErr46RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr58RequiresViolation, mainErr62RequiresViolation, mainErr15RequiresViolation, mainErr49RequiresViolation, mainErr12RequiresViolation, mainErr71RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr55RequiresViolation, mainErr65RequiresViolation, mainErr70RequiresViolation, mainErr17RequiresViolation, mainErr74EnsuresViolation, mainErr42RequiresViolation, mainErr30RequiresViolation, mainErr11RequiresViolation, mainErr57RequiresViolation, mainErr63RequiresViolation, mainErr24RequiresViolation, mainErr44RequiresViolation, mainErr10RequiresViolation, mainErr43RequiresViolation, mainErr4RequiresViolation, mainErr50RequiresViolation, mainErr37RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr36RequiresViolation, mainErr61RequiresViolation, mainErr59RequiresViolation, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr21RequiresViolation, mainErr41RequiresViolation, mainErr56RequiresViolation, mainErr64RequiresViolation, mainErr48RequiresViolation, mainErr72RequiresViolation, mainErr39RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr52RequiresViolation, mainErr68RequiresViolation, mainErr45RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr60RequiresViolation, mainErr9RequiresViolation, mainErr67RequiresViolation, mainErr53RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr8RequiresViolation, mainErr34RequiresViolation, mainErr47RequiresViolation, mainErr73RequiresViolation, mainErr14RequiresViolation, mainErr40RequiresViolation]=== [2018-01-25 03:08:44,204 INFO L82 PathProgramCache]: Analyzing trace with hash 611367904, now seen corresponding path program 1 times [2018-01-25 03:08:44,204 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-25 03:08:44,204 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-25 03:08:44,204 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-25 03:08:44,204 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-25 03:08:44,204 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-25 03:08:44,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-25 03:08:44,215 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-25 03:08:44,518 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-25 03:08:44,519 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-25 03:08:44,519 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2018-01-25 03:08:44,519 INFO L252 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-01-25 03:08:44,519 INFO L409 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-01-25 03:08:44,519 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-01-25 03:08:44,520 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2018-01-25 03:08:44,520 INFO L87 Difference]: Start difference. First operand 179 states and 207 transitions. Second operand 10 states. [2018-01-25 03:08:44,870 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-25 03:08:44,870 INFO L93 Difference]: Finished difference Result 228 states and 265 transitions. [2018-01-25 03:08:44,870 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-01-25 03:08:44,870 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 32 [2018-01-25 03:08:44,870 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-25 03:08:44,871 INFO L225 Difference]: With dead ends: 228 [2018-01-25 03:08:44,871 INFO L226 Difference]: Without dead ends: 227 [2018-01-25 03:08:44,872 INFO L525 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=96, Invalid=210, Unknown=0, NotChecked=0, Total=306 [2018-01-25 03:08:44,872 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 227 states. [2018-01-25 03:08:44,880 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 227 to 178. [2018-01-25 03:08:44,881 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 178 states. [2018-01-25 03:08:44,881 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 178 states to 178 states and 205 transitions. [2018-01-25 03:08:44,882 INFO L78 Accepts]: Start accepts. Automaton has 178 states and 205 transitions. Word has length 32 [2018-01-25 03:08:44,882 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-25 03:08:44,882 INFO L432 AbstractCegarLoop]: Abstraction has 178 states and 205 transitions. [2018-01-25 03:08:44,882 INFO L433 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-01-25 03:08:44,882 INFO L276 IsEmpty]: Start isEmpty. Operand 178 states and 205 transitions. [2018-01-25 03:08:44,883 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2018-01-25 03:08:44,883 INFO L314 BasicCegarLoop]: Found error trace [2018-01-25 03:08:44,883 INFO L322 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-25 03:08:44,883 INFO L371 AbstractCegarLoop]: === Iteration 26 === [mainErr51RequiresViolation, mainErr69RequiresViolation, mainErr26RequiresViolation, mainErr54RequiresViolation, mainErr66RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr31RequiresViolation, mainErr46RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr58RequiresViolation, mainErr62RequiresViolation, mainErr15RequiresViolation, mainErr49RequiresViolation, mainErr12RequiresViolation, mainErr71RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr55RequiresViolation, mainErr65RequiresViolation, mainErr70RequiresViolation, mainErr17RequiresViolation, mainErr74EnsuresViolation, mainErr42RequiresViolation, mainErr30RequiresViolation, mainErr11RequiresViolation, mainErr57RequiresViolation, mainErr63RequiresViolation, mainErr24RequiresViolation, mainErr44RequiresViolation, mainErr10RequiresViolation, mainErr43RequiresViolation, mainErr4RequiresViolation, mainErr50RequiresViolation, mainErr37RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr36RequiresViolation, mainErr61RequiresViolation, mainErr59RequiresViolation, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr21RequiresViolation, mainErr41RequiresViolation, mainErr56RequiresViolation, mainErr64RequiresViolation, mainErr48RequiresViolation, mainErr72RequiresViolation, mainErr39RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr52RequiresViolation, mainErr68RequiresViolation, mainErr45RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr60RequiresViolation, mainErr9RequiresViolation, mainErr67RequiresViolation, mainErr53RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr8RequiresViolation, mainErr34RequiresViolation, mainErr47RequiresViolation, mainErr73RequiresViolation, mainErr14RequiresViolation, mainErr40RequiresViolation]=== [2018-01-25 03:08:44,883 INFO L82 PathProgramCache]: Analyzing trace with hash 611367905, now seen corresponding path program 1 times [2018-01-25 03:08:44,884 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-25 03:08:44,884 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-25 03:08:44,884 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-25 03:08:44,884 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-25 03:08:44,885 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-25 03:08:44,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-25 03:08:44,897 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-25 03:08:45,141 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-25 03:08:45,141 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-25 03:08:45,141 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2018-01-25 03:08:45,141 INFO L252 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-01-25 03:08:45,142 INFO L409 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-01-25 03:08:45,142 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-01-25 03:08:45,142 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2018-01-25 03:08:45,142 INFO L87 Difference]: Start difference. First operand 178 states and 205 transitions. Second operand 10 states. [2018-01-25 03:08:45,620 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-25 03:08:45,620 INFO L93 Difference]: Finished difference Result 223 states and 258 transitions. [2018-01-25 03:08:45,620 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-01-25 03:08:45,620 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 32 [2018-01-25 03:08:45,621 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-25 03:08:45,621 INFO L225 Difference]: With dead ends: 223 [2018-01-25 03:08:45,621 INFO L226 Difference]: Without dead ends: 222 [2018-01-25 03:08:45,622 INFO L525 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=82, Invalid=190, Unknown=0, NotChecked=0, Total=272 [2018-01-25 03:08:45,622 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 222 states. [2018-01-25 03:08:45,630 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 222 to 177. [2018-01-25 03:08:45,630 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 177 states. [2018-01-25 03:08:45,631 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 177 states to 177 states and 203 transitions. [2018-01-25 03:08:45,631 INFO L78 Accepts]: Start accepts. Automaton has 177 states and 203 transitions. Word has length 32 [2018-01-25 03:08:45,631 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-25 03:08:45,631 INFO L432 AbstractCegarLoop]: Abstraction has 177 states and 203 transitions. [2018-01-25 03:08:45,631 INFO L433 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-01-25 03:08:45,631 INFO L276 IsEmpty]: Start isEmpty. Operand 177 states and 203 transitions. [2018-01-25 03:08:45,632 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2018-01-25 03:08:45,632 INFO L314 BasicCegarLoop]: Found error trace [2018-01-25 03:08:45,632 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, 1] [2018-01-25 03:08:45,632 INFO L371 AbstractCegarLoop]: === Iteration 27 === [mainErr51RequiresViolation, mainErr69RequiresViolation, mainErr26RequiresViolation, mainErr54RequiresViolation, mainErr66RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr31RequiresViolation, mainErr46RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr58RequiresViolation, mainErr62RequiresViolation, mainErr15RequiresViolation, mainErr49RequiresViolation, mainErr12RequiresViolation, mainErr71RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr55RequiresViolation, mainErr65RequiresViolation, mainErr70RequiresViolation, mainErr17RequiresViolation, mainErr74EnsuresViolation, mainErr42RequiresViolation, mainErr30RequiresViolation, mainErr11RequiresViolation, mainErr57RequiresViolation, mainErr63RequiresViolation, mainErr24RequiresViolation, mainErr44RequiresViolation, mainErr10RequiresViolation, mainErr43RequiresViolation, mainErr4RequiresViolation, mainErr50RequiresViolation, mainErr37RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr36RequiresViolation, mainErr61RequiresViolation, mainErr59RequiresViolation, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr21RequiresViolation, mainErr41RequiresViolation, mainErr56RequiresViolation, mainErr64RequiresViolation, mainErr48RequiresViolation, mainErr72RequiresViolation, mainErr39RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr52RequiresViolation, mainErr68RequiresViolation, mainErr45RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr60RequiresViolation, mainErr9RequiresViolation, mainErr67RequiresViolation, mainErr53RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr8RequiresViolation, mainErr34RequiresViolation, mainErr47RequiresViolation, mainErr73RequiresViolation, mainErr14RequiresViolation, mainErr40RequiresViolation]=== [2018-01-25 03:08:45,633 INFO L82 PathProgramCache]: Analyzing trace with hash 1665872513, now seen corresponding path program 1 times [2018-01-25 03:08:45,633 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-25 03:08:45,634 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-25 03:08:45,634 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-25 03:08:45,634 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-25 03:08:45,634 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-25 03:08:45,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-25 03:08:45,653 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-25 03:08:45,826 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-25 03:08:45,827 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-25 03:08:45,827 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-01-25 03:08:45,827 INFO L252 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-01-25 03:08:45,827 INFO L409 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-01-25 03:08:45,827 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-01-25 03:08:45,827 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2018-01-25 03:08:45,827 INFO L87 Difference]: Start difference. First operand 177 states and 203 transitions. Second operand 5 states. [2018-01-25 03:08:46,253 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-25 03:08:46,253 INFO L93 Difference]: Finished difference Result 214 states and 245 transitions. [2018-01-25 03:08:46,253 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-01-25 03:08:46,254 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 33 [2018-01-25 03:08:46,254 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-25 03:08:46,255 INFO L225 Difference]: With dead ends: 214 [2018-01-25 03:08:46,255 INFO L226 Difference]: Without dead ends: 207 [2018-01-25 03:08:46,255 INFO L525 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2018-01-25 03:08:46,255 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 207 states. [2018-01-25 03:08:46,262 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 207 to 155. [2018-01-25 03:08:46,262 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 155 states. [2018-01-25 03:08:46,262 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 155 states to 155 states and 175 transitions. [2018-01-25 03:08:46,263 INFO L78 Accepts]: Start accepts. Automaton has 155 states and 175 transitions. Word has length 33 [2018-01-25 03:08:46,263 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-25 03:08:46,263 INFO L432 AbstractCegarLoop]: Abstraction has 155 states and 175 transitions. [2018-01-25 03:08:46,263 INFO L433 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-01-25 03:08:46,263 INFO L276 IsEmpty]: Start isEmpty. Operand 155 states and 175 transitions. [2018-01-25 03:08:46,264 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2018-01-25 03:08:46,264 INFO L314 BasicCegarLoop]: Found error trace [2018-01-25 03:08:46,264 INFO L322 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-25 03:08:46,264 INFO L371 AbstractCegarLoop]: === Iteration 28 === [mainErr51RequiresViolation, mainErr69RequiresViolation, mainErr26RequiresViolation, mainErr54RequiresViolation, mainErr66RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr31RequiresViolation, mainErr46RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr58RequiresViolation, mainErr62RequiresViolation, mainErr15RequiresViolation, mainErr49RequiresViolation, mainErr12RequiresViolation, mainErr71RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr55RequiresViolation, mainErr65RequiresViolation, mainErr70RequiresViolation, mainErr17RequiresViolation, mainErr74EnsuresViolation, mainErr42RequiresViolation, mainErr30RequiresViolation, mainErr11RequiresViolation, mainErr57RequiresViolation, mainErr63RequiresViolation, mainErr24RequiresViolation, mainErr44RequiresViolation, mainErr10RequiresViolation, mainErr43RequiresViolation, mainErr4RequiresViolation, mainErr50RequiresViolation, mainErr37RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr36RequiresViolation, mainErr61RequiresViolation, mainErr59RequiresViolation, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr21RequiresViolation, mainErr41RequiresViolation, mainErr56RequiresViolation, mainErr64RequiresViolation, mainErr48RequiresViolation, mainErr72RequiresViolation, mainErr39RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr52RequiresViolation, mainErr68RequiresViolation, mainErr45RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr60RequiresViolation, mainErr9RequiresViolation, mainErr67RequiresViolation, mainErr53RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr8RequiresViolation, mainErr34RequiresViolation, mainErr47RequiresViolation, mainErr73RequiresViolation, mainErr14RequiresViolation, mainErr40RequiresViolation]=== [2018-01-25 03:08:46,264 INFO L82 PathProgramCache]: Analyzing trace with hash 1679203151, now seen corresponding path program 1 times [2018-01-25 03:08:46,265 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-25 03:08:46,265 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-25 03:08:46,266 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-25 03:08:46,266 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-25 03:08:46,266 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-25 03:08:46,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-25 03:08:46,276 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-25 03:08:46,667 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-25 03:08:46,668 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-01-25 03:08:46,668 INFO L187 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-01-25 03:08:46,670 INFO L199 CegarAbsIntRunner]: Running AI on error trace of length 34 with the following transitions: [2018-01-25 03:08:46,672 INFO L201 CegarAbsIntRunner]: [0], [1], [5], [6], [7], [10], [13], [19], [21], [24], [153], [154], [155], [156], [159], [165], [171], [172], [173], [175], [176], [179], [180], [183], [202], [204], [223], [225], [234], [235], [236] [2018-01-25 03:08:46,754 INFO L147 AbstractInterpreter]: Using domain VPDomain [2018-01-25 03:08:46,755 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