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/forester-heap/dll-rb-sentinel_true-unreach-call_true-valid-memsafety.i -------------------------------------------------------------------------------- This is Ultimate 0.1.23-6b94a2f [2018-01-25 03:46:13,287 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-01-25 03:46:13,289 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-01-25 03:46:13,306 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-01-25 03:46:13,306 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-01-25 03:46:13,307 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-01-25 03:46:13,308 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-01-25 03:46:13,310 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-01-25 03:46:13,311 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-01-25 03:46:13,312 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-01-25 03:46:13,313 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-01-25 03:46:13,313 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-01-25 03:46:13,314 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-01-25 03:46:13,316 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-01-25 03:46:13,323 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-01-25 03:46:13,325 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-01-25 03:46:13,327 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-01-25 03:46:13,329 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-01-25 03:46:13,330 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-01-25 03:46:13,331 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-01-25 03:46:13,333 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-01-25 03:46:13,334 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-01-25 03:46:13,334 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-01-25 03:46:13,335 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-01-25 03:46:13,336 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-01-25 03:46:13,337 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-01-25 03:46:13,337 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-01-25 03:46:13,338 INFO L177 SettingsManager]: PEA to Boogie provides no preferences, ignoring... [2018-01-25 03:46:13,338 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-01-25 03:46:13,338 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-01-25 03:46:13,339 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-01-25 03:46:13,339 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 03:46:13,349 INFO L110 SettingsManager]: Loading preferences was successful [2018-01-25 03:46:13,350 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-01-25 03:46:13,351 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-01-25 03:46:13,351 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-01-25 03:46:13,351 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-01-25 03:46:13,351 INFO L133 SettingsManager]: * Weq Fattening=true [2018-01-25 03:46:13,351 INFO L133 SettingsManager]: * Flatten before fatten=true [2018-01-25 03:46:13,352 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=VPDomain [2018-01-25 03:46:13,352 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-01-25 03:46:13,353 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-01-25 03:46:13,353 INFO L133 SettingsManager]: * sizeof long=4 [2018-01-25 03:46:13,353 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-01-25 03:46:13,353 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-01-25 03:46:13,353 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-01-25 03:46:13,354 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-01-25 03:46:13,354 INFO L133 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2018-01-25 03:46:13,354 INFO L133 SettingsManager]: * Bitprecise bitfields=true [2018-01-25 03:46:13,354 INFO L133 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2018-01-25 03:46:13,354 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-01-25 03:46:13,355 INFO L133 SettingsManager]: * sizeof long double=12 [2018-01-25 03:46:13,355 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-01-25 03:46:13,355 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-01-25 03:46:13,355 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-01-25 03:46:13,356 INFO L133 SettingsManager]: * Add additional assume for each assert=false [2018-01-25 03:46:13,356 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-01-25 03:46:13,356 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-01-25 03:46:13,356 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-01-25 03:46:13,357 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-01-25 03:46:13,357 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-01-25 03:46:13,357 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-01-25 03:46:13,357 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-01-25 03:46:13,357 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-01-25 03:46:13,357 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-01-25 03:46:13,358 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-01-25 03:46:13,358 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-01-25 03:46:13,359 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-01-25 03:46:13,359 INFO L133 SettingsManager]: * TransformationType=HEAP_SEPARATOR [2018-01-25 03:46:13,394 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-01-25 03:46:13,418 INFO L266 ainManager$Toolchain]: [Toolchain 1]: Parser(s) successfully initialized [2018-01-25 03:46:13,422 INFO L222 ainManager$Toolchain]: [Toolchain 1]: Toolchain data selected. [2018-01-25 03:46:13,423 INFO L271 PluginConnector]: Initializing CDTParser... [2018-01-25 03:46:13,423 INFO L276 PluginConnector]: CDTParser initialized [2018-01-25 03:46:13,423 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/forester-heap/dll-rb-sentinel_true-unreach-call_true-valid-memsafety.i [2018-01-25 03:46:13,613 INFO L304 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-01-25 03:46:13,617 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-01-25 03:46:13,618 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-01-25 03:46:13,618 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-01-25 03:46:13,623 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-01-25 03:46:13,624 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.01 03:46:13" (1/1) ... [2018-01-25 03:46:13,626 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@30adde8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.01 03:46:13, skipping insertion in model container [2018-01-25 03:46:13,627 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.01 03:46:13" (1/1) ... [2018-01-25 03:46:13,639 INFO L153 Dispatcher]: Using SV-COMP mode [2018-01-25 03:46:13,679 INFO L153 Dispatcher]: Using SV-COMP mode [2018-01-25 03:46:13,807 INFO L450 PostProcessor]: Settings: Checked method=main [2018-01-25 03:46:13,830 INFO L450 PostProcessor]: Settings: Checked method=main [2018-01-25 03:46:13,841 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.01 03:46:13 WrapperNode [2018-01-25 03:46:13,841 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-01-25 03:46:13,842 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-01-25 03:46:13,842 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-01-25 03:46:13,843 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-01-25 03:46:13,858 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.01 03:46:13" (1/1) ... [2018-01-25 03:46:13,859 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.01 03:46:13" (1/1) ... [2018-01-25 03:46:13,868 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.01 03:46:13" (1/1) ... [2018-01-25 03:46:13,869 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.01 03:46:13" (1/1) ... [2018-01-25 03:46:13,875 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.01 03:46:13" (1/1) ... [2018-01-25 03:46:13,881 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.01 03:46:13" (1/1) ... [2018-01-25 03:46:13,883 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.01 03:46:13" (1/1) ... [2018-01-25 03:46:13,886 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-01-25 03:46:13,886 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-01-25 03:46:13,886 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-01-25 03:46:13,887 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-01-25 03:46:13,887 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.01 03:46:13" (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 03:46:13,940 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-01-25 03:46:13,940 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-01-25 03:46:13,940 INFO L136 BoogieDeclarations]: Found implementation of procedure main [2018-01-25 03:46:13,941 INFO L128 BoogieDeclarations]: Found specification of procedure write~int [2018-01-25 03:46:13,941 INFO L128 BoogieDeclarations]: Found specification of procedure read~int [2018-01-25 03:46:13,941 INFO L128 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2018-01-25 03:46:13,941 INFO L128 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2018-01-25 03:46:13,941 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.free [2018-01-25 03:46:13,941 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-01-25 03:46:13,941 INFO L128 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-01-25 03:46:13,941 INFO L128 BoogieDeclarations]: Found specification of procedure malloc [2018-01-25 03:46:13,941 INFO L128 BoogieDeclarations]: Found specification of procedure free [2018-01-25 03:46:13,941 INFO L128 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2018-01-25 03:46:13,942 INFO L128 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2018-01-25 03:46:13,942 INFO L128 BoogieDeclarations]: Found specification of procedure main [2018-01-25 03:46:13,942 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-01-25 03:46:13,942 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-01-25 03:46:14,651 INFO L257 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-01-25 03:46:14,651 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.01 03:46:14 BoogieIcfgContainer [2018-01-25 03:46:14,652 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-01-25 03:46:14,653 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-01-25 03:46:14,653 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-01-25 03:46:14,655 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-01-25 03:46:14,655 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.01 03:46:13" (1/3) ... [2018-01-25 03:46:14,657 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6afbc410 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.01 03:46:14, skipping insertion in model container [2018-01-25 03:46:14,657 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.01 03:46:13" (2/3) ... [2018-01-25 03:46:14,657 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6afbc410 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.01 03:46:14, skipping insertion in model container [2018-01-25 03:46:14,657 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.01 03:46:14" (3/3) ... [2018-01-25 03:46:14,659 INFO L105 eAbstractionObserver]: Analyzing ICFG dll-rb-sentinel_true-unreach-call_true-valid-memsafety.i [2018-01-25 03:46:14,666 INFO L130 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-01-25 03:46:14,673 INFO L142 ceAbstractionStarter]: Appying trace abstraction to program that has 69 error locations. [2018-01-25 03:46:14,714 INFO L322 AbstractCegarLoop]: Interprodecural is true [2018-01-25 03:46:14,714 INFO L323 AbstractCegarLoop]: Hoare is true [2018-01-25 03:46:14,715 INFO L324 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-01-25 03:46:14,715 INFO L325 AbstractCegarLoop]: Backedges is TWOTRACK [2018-01-25 03:46:14,715 INFO L326 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-01-25 03:46:14,715 INFO L327 AbstractCegarLoop]: Difference is false [2018-01-25 03:46:14,715 INFO L328 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-01-25 03:46:14,715 INFO L333 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-01-25 03:46:14,716 INFO L87 2NestedWordAutomaton]: Mode: main mode - execution starts in main procedure [2018-01-25 03:46:14,736 INFO L276 IsEmpty]: Start isEmpty. Operand 163 states. [2018-01-25 03:46:14,741 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2018-01-25 03:46:14,742 INFO L314 BasicCegarLoop]: Found error trace [2018-01-25 03:46:14,743 INFO L322 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2018-01-25 03:46:14,743 INFO L371 AbstractCegarLoop]: === Iteration 1 === [mainErr51RequiresViolation, mainErr26RequiresViolation, mainErr54RequiresViolation, mainErr66RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr31RequiresViolation, mainErr46RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr58RequiresViolation, mainErr62RequiresViolation, mainErr15RequiresViolation, mainErr49RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr68EnsuresViolation, mainErr55RequiresViolation, mainErr65RequiresViolation, mainErr17RequiresViolation, mainErr42RequiresViolation, mainErr30RequiresViolation, mainErr11RequiresViolation, mainErr57RequiresViolation, mainErr63RequiresViolation, mainErr24RequiresViolation, mainErr44RequiresViolation, mainErr10RequiresViolation, mainErr43RequiresViolation, mainErr4RequiresViolation, mainErr50RequiresViolation, mainErr37RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr36RequiresViolation, mainErr61RequiresViolation, mainErr59RequiresViolation, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr21RequiresViolation, mainErr41RequiresViolation, mainErr56RequiresViolation, mainErr64RequiresViolation, mainErr48RequiresViolation, mainErr39RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr52RequiresViolation, mainErr45RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr60RequiresViolation, mainErr9RequiresViolation, mainErr67RequiresViolation, mainErr53RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr8RequiresViolation, mainErr34RequiresViolation, mainErr47RequiresViolation, mainErr14RequiresViolation, mainErr40RequiresViolation]=== [2018-01-25 03:46:14,747 INFO L82 PathProgramCache]: Analyzing trace with hash 115964591, now seen corresponding path program 1 times [2018-01-25 03:46:14,749 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-25 03:46:14,819 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-25 03:46:14,819 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-25 03:46:14,819 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-25 03:46:14,820 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-25 03:46:14,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-25 03:46:14,872 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-25 03:46:14,944 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 03:46:14,946 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-25 03:46:14,947 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-01-25 03:46:14,947 INFO L252 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-01-25 03:46:14,950 INFO L409 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-01-25 03:46:15,058 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-01-25 03:46:15,059 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-01-25 03:46:15,062 INFO L87 Difference]: Start difference. First operand 163 states. Second operand 4 states. [2018-01-25 03:46:15,395 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-25 03:46:15,395 INFO L93 Difference]: Finished difference Result 320 states and 382 transitions. [2018-01-25 03:46:15,396 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-01-25 03:46:15,397 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 8 [2018-01-25 03:46:15,397 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-25 03:46:15,409 INFO L225 Difference]: With dead ends: 320 [2018-01-25 03:46:15,409 INFO L226 Difference]: Without dead ends: 179 [2018-01-25 03:46:15,413 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 03:46:15,429 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 179 states. [2018-01-25 03:46:15,454 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 179 to 160. [2018-01-25 03:46:15,455 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 160 states. [2018-01-25 03:46:15,458 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 160 states to 160 states and 167 transitions. [2018-01-25 03:46:15,460 INFO L78 Accepts]: Start accepts. Automaton has 160 states and 167 transitions. Word has length 8 [2018-01-25 03:46:15,460 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-25 03:46:15,460 INFO L432 AbstractCegarLoop]: Abstraction has 160 states and 167 transitions. [2018-01-25 03:46:15,460 INFO L433 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-01-25 03:46:15,460 INFO L276 IsEmpty]: Start isEmpty. Operand 160 states and 167 transitions. [2018-01-25 03:46:15,461 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2018-01-25 03:46:15,461 INFO L314 BasicCegarLoop]: Found error trace [2018-01-25 03:46:15,461 INFO L322 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2018-01-25 03:46:15,461 INFO L371 AbstractCegarLoop]: === Iteration 2 === [mainErr51RequiresViolation, mainErr26RequiresViolation, mainErr54RequiresViolation, mainErr66RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr31RequiresViolation, mainErr46RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr58RequiresViolation, mainErr62RequiresViolation, mainErr15RequiresViolation, mainErr49RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr68EnsuresViolation, mainErr55RequiresViolation, mainErr65RequiresViolation, mainErr17RequiresViolation, mainErr42RequiresViolation, mainErr30RequiresViolation, mainErr11RequiresViolation, mainErr57RequiresViolation, mainErr63RequiresViolation, mainErr24RequiresViolation, mainErr44RequiresViolation, mainErr10RequiresViolation, mainErr43RequiresViolation, mainErr4RequiresViolation, mainErr50RequiresViolation, mainErr37RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr36RequiresViolation, mainErr61RequiresViolation, mainErr59RequiresViolation, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr21RequiresViolation, mainErr41RequiresViolation, mainErr56RequiresViolation, mainErr64RequiresViolation, mainErr48RequiresViolation, mainErr39RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr52RequiresViolation, mainErr45RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr60RequiresViolation, mainErr9RequiresViolation, mainErr67RequiresViolation, mainErr53RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr8RequiresViolation, mainErr34RequiresViolation, mainErr47RequiresViolation, mainErr14RequiresViolation, mainErr40RequiresViolation]=== [2018-01-25 03:46:15,462 INFO L82 PathProgramCache]: Analyzing trace with hash 115964592, now seen corresponding path program 1 times [2018-01-25 03:46:15,462 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-25 03:46:15,463 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-25 03:46:15,464 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-25 03:46:15,464 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-25 03:46:15,464 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-25 03:46:15,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-25 03:46:15,480 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-25 03:46:15,597 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 03:46:15,598 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-25 03:46:15,598 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-01-25 03:46:15,598 INFO L252 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-01-25 03:46:15,600 INFO L409 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-01-25 03:46:15,600 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-01-25 03:46:15,600 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-01-25 03:46:15,601 INFO L87 Difference]: Start difference. First operand 160 states and 167 transitions. Second operand 4 states. [2018-01-25 03:46:15,760 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-25 03:46:15,760 INFO L93 Difference]: Finished difference Result 160 states and 167 transitions. [2018-01-25 03:46:15,760 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-01-25 03:46:15,760 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 8 [2018-01-25 03:46:15,760 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-25 03:46:15,762 INFO L225 Difference]: With dead ends: 160 [2018-01-25 03:46:15,762 INFO L226 Difference]: Without dead ends: 156 [2018-01-25 03:46:15,763 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 03:46:15,764 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 156 states. [2018-01-25 03:46:15,774 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 156 to 156. [2018-01-25 03:46:15,774 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 156 states. [2018-01-25 03:46:15,775 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 156 states to 156 states and 162 transitions. [2018-01-25 03:46:15,776 INFO L78 Accepts]: Start accepts. Automaton has 156 states and 162 transitions. Word has length 8 [2018-01-25 03:46:15,776 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-25 03:46:15,776 INFO L432 AbstractCegarLoop]: Abstraction has 156 states and 162 transitions. [2018-01-25 03:46:15,776 INFO L433 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-01-25 03:46:15,776 INFO L276 IsEmpty]: Start isEmpty. Operand 156 states and 162 transitions. [2018-01-25 03:46:15,777 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2018-01-25 03:46:15,777 INFO L314 BasicCegarLoop]: Found error trace [2018-01-25 03:46:15,777 INFO L322 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-25 03:46:15,777 INFO L371 AbstractCegarLoop]: === Iteration 3 === [mainErr51RequiresViolation, mainErr26RequiresViolation, mainErr54RequiresViolation, mainErr66RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr31RequiresViolation, mainErr46RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr58RequiresViolation, mainErr62RequiresViolation, mainErr15RequiresViolation, mainErr49RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr68EnsuresViolation, mainErr55RequiresViolation, mainErr65RequiresViolation, mainErr17RequiresViolation, mainErr42RequiresViolation, mainErr30RequiresViolation, mainErr11RequiresViolation, mainErr57RequiresViolation, mainErr63RequiresViolation, mainErr24RequiresViolation, mainErr44RequiresViolation, mainErr10RequiresViolation, mainErr43RequiresViolation, mainErr4RequiresViolation, mainErr50RequiresViolation, mainErr37RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr36RequiresViolation, mainErr61RequiresViolation, mainErr59RequiresViolation, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr21RequiresViolation, mainErr41RequiresViolation, mainErr56RequiresViolation, mainErr64RequiresViolation, mainErr48RequiresViolation, mainErr39RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr52RequiresViolation, mainErr45RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr60RequiresViolation, mainErr9RequiresViolation, mainErr67RequiresViolation, mainErr53RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr8RequiresViolation, mainErr34RequiresViolation, mainErr47RequiresViolation, mainErr14RequiresViolation, mainErr40RequiresViolation]=== [2018-01-25 03:46:15,777 INFO L82 PathProgramCache]: Analyzing trace with hash 992494940, now seen corresponding path program 1 times [2018-01-25 03:46:15,777 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-25 03:46:15,779 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-25 03:46:15,779 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-25 03:46:15,779 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-25 03:46:15,779 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-25 03:46:15,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-25 03:46:15,802 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-25 03:46:15,840 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 03:46:15,840 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-25 03:46:15,840 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-01-25 03:46:15,840 INFO L252 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-01-25 03:46:15,841 INFO L409 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-01-25 03:46:15,841 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-01-25 03:46:15,841 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-01-25 03:46:15,841 INFO L87 Difference]: Start difference. First operand 156 states and 162 transitions. Second operand 4 states. [2018-01-25 03:46:15,981 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-25 03:46:15,981 INFO L93 Difference]: Finished difference Result 170 states and 181 transitions. [2018-01-25 03:46:15,982 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-01-25 03:46:15,982 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 13 [2018-01-25 03:46:15,982 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-25 03:46:15,984 INFO L225 Difference]: With dead ends: 170 [2018-01-25 03:46:15,984 INFO L226 Difference]: Without dead ends: 162 [2018-01-25 03:46:15,985 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 03:46:15,985 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 162 states. [2018-01-25 03:46:15,993 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 162 to 150. [2018-01-25 03:46:15,994 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 150 states. [2018-01-25 03:46:15,995 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 150 states to 150 states and 157 transitions. [2018-01-25 03:46:15,996 INFO L78 Accepts]: Start accepts. Automaton has 150 states and 157 transitions. Word has length 13 [2018-01-25 03:46:15,996 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-25 03:46:15,996 INFO L432 AbstractCegarLoop]: Abstraction has 150 states and 157 transitions. [2018-01-25 03:46:15,996 INFO L433 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-01-25 03:46:15,996 INFO L276 IsEmpty]: Start isEmpty. Operand 150 states and 157 transitions. [2018-01-25 03:46:15,997 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2018-01-25 03:46:15,997 INFO L314 BasicCegarLoop]: Found error trace [2018-01-25 03:46:15,997 INFO L322 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-25 03:46:15,998 INFO L371 AbstractCegarLoop]: === Iteration 4 === [mainErr51RequiresViolation, mainErr26RequiresViolation, mainErr54RequiresViolation, mainErr66RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr31RequiresViolation, mainErr46RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr58RequiresViolation, mainErr62RequiresViolation, mainErr15RequiresViolation, mainErr49RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr68EnsuresViolation, mainErr55RequiresViolation, mainErr65RequiresViolation, mainErr17RequiresViolation, mainErr42RequiresViolation, mainErr30RequiresViolation, mainErr11RequiresViolation, mainErr57RequiresViolation, mainErr63RequiresViolation, mainErr24RequiresViolation, mainErr44RequiresViolation, mainErr10RequiresViolation, mainErr43RequiresViolation, mainErr4RequiresViolation, mainErr50RequiresViolation, mainErr37RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr36RequiresViolation, mainErr61RequiresViolation, mainErr59RequiresViolation, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr21RequiresViolation, mainErr41RequiresViolation, mainErr56RequiresViolation, mainErr64RequiresViolation, mainErr48RequiresViolation, mainErr39RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr52RequiresViolation, mainErr45RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr60RequiresViolation, mainErr9RequiresViolation, mainErr67RequiresViolation, mainErr53RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr8RequiresViolation, mainErr34RequiresViolation, mainErr47RequiresViolation, mainErr14RequiresViolation, mainErr40RequiresViolation]=== [2018-01-25 03:46:15,999 INFO L82 PathProgramCache]: Analyzing trace with hash 992494941, now seen corresponding path program 1 times [2018-01-25 03:46:15,999 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-25 03:46:16,000 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-25 03:46:16,001 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-25 03:46:16,001 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-25 03:46:16,001 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-25 03:46:16,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-25 03:46:16,018 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-25 03:46:16,071 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 03:46:16,071 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-25 03:46:16,072 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-01-25 03:46:16,072 INFO L252 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-01-25 03:46:16,072 INFO L409 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-01-25 03:46:16,072 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-01-25 03:46:16,073 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-01-25 03:46:16,073 INFO L87 Difference]: Start difference. First operand 150 states and 157 transitions. Second operand 4 states. [2018-01-25 03:46:16,211 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-25 03:46:16,211 INFO L93 Difference]: Finished difference Result 170 states and 176 transitions. [2018-01-25 03:46:16,211 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-01-25 03:46:16,211 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 13 [2018-01-25 03:46:16,212 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-25 03:46:16,213 INFO L225 Difference]: With dead ends: 170 [2018-01-25 03:46:16,213 INFO L226 Difference]: Without dead ends: 162 [2018-01-25 03:46:16,214 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 03:46:16,214 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 162 states. [2018-01-25 03:46:16,223 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 162 to 154. [2018-01-25 03:46:16,223 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 154 states. [2018-01-25 03:46:16,224 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 154 states to 154 states and 161 transitions. [2018-01-25 03:46:16,225 INFO L78 Accepts]: Start accepts. Automaton has 154 states and 161 transitions. Word has length 13 [2018-01-25 03:46:16,225 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-25 03:46:16,225 INFO L432 AbstractCegarLoop]: Abstraction has 154 states and 161 transitions. [2018-01-25 03:46:16,225 INFO L433 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-01-25 03:46:16,225 INFO L276 IsEmpty]: Start isEmpty. Operand 154 states and 161 transitions. [2018-01-25 03:46:16,226 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2018-01-25 03:46:16,226 INFO L314 BasicCegarLoop]: Found error trace [2018-01-25 03:46:16,226 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] [2018-01-25 03:46:16,227 INFO L371 AbstractCegarLoop]: === Iteration 5 === [mainErr51RequiresViolation, mainErr26RequiresViolation, mainErr54RequiresViolation, mainErr66RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr31RequiresViolation, mainErr46RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr58RequiresViolation, mainErr62RequiresViolation, mainErr15RequiresViolation, mainErr49RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr68EnsuresViolation, mainErr55RequiresViolation, mainErr65RequiresViolation, mainErr17RequiresViolation, mainErr42RequiresViolation, mainErr30RequiresViolation, mainErr11RequiresViolation, mainErr57RequiresViolation, mainErr63RequiresViolation, mainErr24RequiresViolation, mainErr44RequiresViolation, mainErr10RequiresViolation, mainErr43RequiresViolation, mainErr4RequiresViolation, mainErr50RequiresViolation, mainErr37RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr36RequiresViolation, mainErr61RequiresViolation, mainErr59RequiresViolation, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr21RequiresViolation, mainErr41RequiresViolation, mainErr56RequiresViolation, mainErr64RequiresViolation, mainErr48RequiresViolation, mainErr39RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr52RequiresViolation, mainErr45RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr60RequiresViolation, mainErr9RequiresViolation, mainErr67RequiresViolation, mainErr53RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr8RequiresViolation, mainErr34RequiresViolation, mainErr47RequiresViolation, mainErr14RequiresViolation, mainErr40RequiresViolation]=== [2018-01-25 03:46:16,227 INFO L82 PathProgramCache]: Analyzing trace with hash 1268132201, now seen corresponding path program 1 times [2018-01-25 03:46:16,227 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-25 03:46:16,229 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-25 03:46:16,229 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-25 03:46:16,229 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-25 03:46:16,229 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-25 03:46:16,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-25 03:46:16,266 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-25 03:46:16,370 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 03:46:16,370 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-25 03:46:16,370 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-01-25 03:46:16,370 INFO L252 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-01-25 03:46:16,371 INFO L409 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-01-25 03:46:16,371 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-01-25 03:46:16,371 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-01-25 03:46:16,371 INFO L87 Difference]: Start difference. First operand 154 states and 161 transitions. Second operand 4 states. [2018-01-25 03:46:16,503 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-25 03:46:16,503 INFO L93 Difference]: Finished difference Result 168 states and 178 transitions. [2018-01-25 03:46:16,504 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-01-25 03:46:16,504 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 21 [2018-01-25 03:46:16,504 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-25 03:46:16,505 INFO L225 Difference]: With dead ends: 168 [2018-01-25 03:46:16,505 INFO L226 Difference]: Without dead ends: 152 [2018-01-25 03:46:16,505 INFO L525 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 2 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 03:46:16,506 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 152 states. [2018-01-25 03:46:16,515 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 152 to 142. [2018-01-25 03:46:16,516 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 142 states. [2018-01-25 03:46:16,517 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 142 states to 142 states and 151 transitions. [2018-01-25 03:46:16,517 INFO L78 Accepts]: Start accepts. Automaton has 142 states and 151 transitions. Word has length 21 [2018-01-25 03:46:16,518 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-25 03:46:16,518 INFO L432 AbstractCegarLoop]: Abstraction has 142 states and 151 transitions. [2018-01-25 03:46:16,518 INFO L433 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-01-25 03:46:16,518 INFO L276 IsEmpty]: Start isEmpty. Operand 142 states and 151 transitions. [2018-01-25 03:46:16,519 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2018-01-25 03:46:16,519 INFO L314 BasicCegarLoop]: Found error trace [2018-01-25 03:46:16,519 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] [2018-01-25 03:46:16,519 INFO L371 AbstractCegarLoop]: === Iteration 6 === [mainErr51RequiresViolation, mainErr26RequiresViolation, mainErr54RequiresViolation, mainErr66RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr31RequiresViolation, mainErr46RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr58RequiresViolation, mainErr62RequiresViolation, mainErr15RequiresViolation, mainErr49RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr68EnsuresViolation, mainErr55RequiresViolation, mainErr65RequiresViolation, mainErr17RequiresViolation, mainErr42RequiresViolation, mainErr30RequiresViolation, mainErr11RequiresViolation, mainErr57RequiresViolation, mainErr63RequiresViolation, mainErr24RequiresViolation, mainErr44RequiresViolation, mainErr10RequiresViolation, mainErr43RequiresViolation, mainErr4RequiresViolation, mainErr50RequiresViolation, mainErr37RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr36RequiresViolation, mainErr61RequiresViolation, mainErr59RequiresViolation, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr21RequiresViolation, mainErr41RequiresViolation, mainErr56RequiresViolation, mainErr64RequiresViolation, mainErr48RequiresViolation, mainErr39RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr52RequiresViolation, mainErr45RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr60RequiresViolation, mainErr9RequiresViolation, mainErr67RequiresViolation, mainErr53RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr8RequiresViolation, mainErr34RequiresViolation, mainErr47RequiresViolation, mainErr14RequiresViolation, mainErr40RequiresViolation]=== [2018-01-25 03:46:16,519 INFO L82 PathProgramCache]: Analyzing trace with hash 1268132202, now seen corresponding path program 1 times [2018-01-25 03:46:16,519 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-25 03:46:16,521 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-25 03:46:16,521 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-25 03:46:16,521 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-25 03:46:16,521 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-25 03:46:16,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-25 03:46:16,543 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-25 03:46:16,665 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 03:46:16,666 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-25 03:46:16,666 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-01-25 03:46:16,666 INFO L252 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-01-25 03:46:16,666 INFO L409 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-01-25 03:46:16,666 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-01-25 03:46:16,667 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2018-01-25 03:46:16,667 INFO L87 Difference]: Start difference. First operand 142 states and 151 transitions. Second operand 7 states. [2018-01-25 03:46:17,032 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-25 03:46:17,032 INFO L93 Difference]: Finished difference Result 186 states and 196 transitions. [2018-01-25 03:46:17,032 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-01-25 03:46:17,032 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 21 [2018-01-25 03:46:17,032 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-25 03:46:17,033 INFO L225 Difference]: With dead ends: 186 [2018-01-25 03:46:17,033 INFO L226 Difference]: Without dead ends: 179 [2018-01-25 03:46:17,034 INFO L525 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2018-01-25 03:46:17,034 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 179 states. [2018-01-25 03:46:17,040 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 179 to 153. [2018-01-25 03:46:17,040 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 153 states. [2018-01-25 03:46:17,041 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 153 states to 153 states and 165 transitions. [2018-01-25 03:46:17,042 INFO L78 Accepts]: Start accepts. Automaton has 153 states and 165 transitions. Word has length 21 [2018-01-25 03:46:17,042 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-25 03:46:17,042 INFO L432 AbstractCegarLoop]: Abstraction has 153 states and 165 transitions. [2018-01-25 03:46:17,042 INFO L433 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-01-25 03:46:17,042 INFO L276 IsEmpty]: Start isEmpty. Operand 153 states and 165 transitions. [2018-01-25 03:46:17,043 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2018-01-25 03:46:17,043 INFO L314 BasicCegarLoop]: Found error trace [2018-01-25 03:46:17,043 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 03:46:17,043 INFO L371 AbstractCegarLoop]: === Iteration 7 === [mainErr51RequiresViolation, mainErr26RequiresViolation, mainErr54RequiresViolation, mainErr66RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr31RequiresViolation, mainErr46RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr58RequiresViolation, mainErr62RequiresViolation, mainErr15RequiresViolation, mainErr49RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr68EnsuresViolation, mainErr55RequiresViolation, mainErr65RequiresViolation, mainErr17RequiresViolation, mainErr42RequiresViolation, mainErr30RequiresViolation, mainErr11RequiresViolation, mainErr57RequiresViolation, mainErr63RequiresViolation, mainErr24RequiresViolation, mainErr44RequiresViolation, mainErr10RequiresViolation, mainErr43RequiresViolation, mainErr4RequiresViolation, mainErr50RequiresViolation, mainErr37RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr36RequiresViolation, mainErr61RequiresViolation, mainErr59RequiresViolation, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr21RequiresViolation, mainErr41RequiresViolation, mainErr56RequiresViolation, mainErr64RequiresViolation, mainErr48RequiresViolation, mainErr39RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr52RequiresViolation, mainErr45RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr60RequiresViolation, mainErr9RequiresViolation, mainErr67RequiresViolation, mainErr53RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr8RequiresViolation, mainErr34RequiresViolation, mainErr47RequiresViolation, mainErr14RequiresViolation, mainErr40RequiresViolation]=== [2018-01-25 03:46:17,044 INFO L82 PathProgramCache]: Analyzing trace with hash -1095666644, now seen corresponding path program 1 times [2018-01-25 03:46:17,044 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-25 03:46:17,045 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-25 03:46:17,045 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-25 03:46:17,045 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-25 03:46:17,046 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-25 03:46:17,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-25 03:46:17,062 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-25 03:46:17,096 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 03:46:17,097 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-25 03:46:17,097 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-01-25 03:46:17,097 INFO L252 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-01-25 03:46:17,097 INFO L409 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-01-25 03:46:17,097 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-01-25 03:46:17,097 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-01-25 03:46:17,098 INFO L87 Difference]: Start difference. First operand 153 states and 165 transitions. Second operand 5 states. [2018-01-25 03:46:17,309 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-25 03:46:17,309 INFO L93 Difference]: Finished difference Result 199 states and 217 transitions. [2018-01-25 03:46:17,309 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-01-25 03:46:17,309 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 23 [2018-01-25 03:46:17,310 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-25 03:46:17,311 INFO L225 Difference]: With dead ends: 199 [2018-01-25 03:46:17,311 INFO L226 Difference]: Without dead ends: 198 [2018-01-25 03:46:17,311 INFO L525 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2018-01-25 03:46:17,312 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 198 states. [2018-01-25 03:46:17,316 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 198 to 152. [2018-01-25 03:46:17,316 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 152 states. [2018-01-25 03:46:17,317 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 152 states to 152 states and 163 transitions. [2018-01-25 03:46:17,317 INFO L78 Accepts]: Start accepts. Automaton has 152 states and 163 transitions. Word has length 23 [2018-01-25 03:46:17,318 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-25 03:46:17,318 INFO L432 AbstractCegarLoop]: Abstraction has 152 states and 163 transitions. [2018-01-25 03:46:17,318 INFO L433 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-01-25 03:46:17,318 INFO L276 IsEmpty]: Start isEmpty. Operand 152 states and 163 transitions. [2018-01-25 03:46:17,319 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2018-01-25 03:46:17,319 INFO L314 BasicCegarLoop]: Found error trace [2018-01-25 03:46:17,319 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 03:46:17,319 INFO L371 AbstractCegarLoop]: === Iteration 8 === [mainErr51RequiresViolation, mainErr26RequiresViolation, mainErr54RequiresViolation, mainErr66RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr31RequiresViolation, mainErr46RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr58RequiresViolation, mainErr62RequiresViolation, mainErr15RequiresViolation, mainErr49RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr68EnsuresViolation, mainErr55RequiresViolation, mainErr65RequiresViolation, mainErr17RequiresViolation, mainErr42RequiresViolation, mainErr30RequiresViolation, mainErr11RequiresViolation, mainErr57RequiresViolation, mainErr63RequiresViolation, mainErr24RequiresViolation, mainErr44RequiresViolation, mainErr10RequiresViolation, mainErr43RequiresViolation, mainErr4RequiresViolation, mainErr50RequiresViolation, mainErr37RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr36RequiresViolation, mainErr61RequiresViolation, mainErr59RequiresViolation, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr21RequiresViolation, mainErr41RequiresViolation, mainErr56RequiresViolation, mainErr64RequiresViolation, mainErr48RequiresViolation, mainErr39RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr52RequiresViolation, mainErr45RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr60RequiresViolation, mainErr9RequiresViolation, mainErr67RequiresViolation, mainErr53RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr8RequiresViolation, mainErr34RequiresViolation, mainErr47RequiresViolation, mainErr14RequiresViolation, mainErr40RequiresViolation]=== [2018-01-25 03:46:17,319 INFO L82 PathProgramCache]: Analyzing trace with hash -1095666643, now seen corresponding path program 1 times [2018-01-25 03:46:17,319 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-25 03:46:17,320 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-25 03:46:17,321 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-25 03:46:17,321 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-25 03:46:17,321 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-25 03:46:17,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-25 03:46:17,336 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-25 03:46:17,401 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 03:46:17,401 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-25 03:46:17,401 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-01-25 03:46:17,401 INFO L252 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-01-25 03:46:17,401 INFO L409 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-01-25 03:46:17,402 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-01-25 03:46:17,402 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-01-25 03:46:17,402 INFO L87 Difference]: Start difference. First operand 152 states and 163 transitions. Second operand 5 states. [2018-01-25 03:46:17,685 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-25 03:46:17,686 INFO L93 Difference]: Finished difference Result 226 states and 244 transitions. [2018-01-25 03:46:17,686 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-01-25 03:46:17,686 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 23 [2018-01-25 03:46:17,686 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-25 03:46:17,687 INFO L225 Difference]: With dead ends: 226 [2018-01-25 03:46:17,687 INFO L226 Difference]: Without dead ends: 225 [2018-01-25 03:46:17,687 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 03:46:17,688 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 225 states. [2018-01-25 03:46:17,693 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 225 to 151. [2018-01-25 03:46:17,693 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 151 states. [2018-01-25 03:46:17,694 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 151 states to 151 states and 161 transitions. [2018-01-25 03:46:17,694 INFO L78 Accepts]: Start accepts. Automaton has 151 states and 161 transitions. Word has length 23 [2018-01-25 03:46:17,694 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-25 03:46:17,694 INFO L432 AbstractCegarLoop]: Abstraction has 151 states and 161 transitions. [2018-01-25 03:46:17,695 INFO L433 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-01-25 03:46:17,695 INFO L276 IsEmpty]: Start isEmpty. Operand 151 states and 161 transitions. [2018-01-25 03:46:17,695 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2018-01-25 03:46:17,695 INFO L314 BasicCegarLoop]: Found error trace [2018-01-25 03:46:17,695 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] [2018-01-25 03:46:17,695 INFO L371 AbstractCegarLoop]: === Iteration 9 === [mainErr51RequiresViolation, mainErr26RequiresViolation, mainErr54RequiresViolation, mainErr66RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr31RequiresViolation, mainErr46RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr58RequiresViolation, mainErr62RequiresViolation, mainErr15RequiresViolation, mainErr49RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr68EnsuresViolation, mainErr55RequiresViolation, mainErr65RequiresViolation, mainErr17RequiresViolation, mainErr42RequiresViolation, mainErr30RequiresViolation, mainErr11RequiresViolation, mainErr57RequiresViolation, mainErr63RequiresViolation, mainErr24RequiresViolation, mainErr44RequiresViolation, mainErr10RequiresViolation, mainErr43RequiresViolation, mainErr4RequiresViolation, mainErr50RequiresViolation, mainErr37RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr36RequiresViolation, mainErr61RequiresViolation, mainErr59RequiresViolation, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr21RequiresViolation, mainErr41RequiresViolation, mainErr56RequiresViolation, mainErr64RequiresViolation, mainErr48RequiresViolation, mainErr39RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr52RequiresViolation, mainErr45RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr60RequiresViolation, mainErr9RequiresViolation, mainErr67RequiresViolation, mainErr53RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr8RequiresViolation, mainErr34RequiresViolation, mainErr47RequiresViolation, mainErr14RequiresViolation, mainErr40RequiresViolation]=== [2018-01-25 03:46:17,696 INFO L82 PathProgramCache]: Analyzing trace with hash 1665799662, now seen corresponding path program 1 times [2018-01-25 03:46:17,696 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-25 03:46:17,697 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-25 03:46:17,697 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-25 03:46:17,697 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-25 03:46:17,697 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-25 03:46:17,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-25 03:46:17,717 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-25 03:46:17,954 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-25 03:46:17,954 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-25 03:46:17,954 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2018-01-25 03:46:17,954 INFO L252 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-01-25 03:46:17,955 INFO L409 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-01-25 03:46:17,955 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-01-25 03:46:17,955 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2018-01-25 03:46:17,956 INFO L87 Difference]: Start difference. First operand 151 states and 161 transitions. Second operand 9 states. [2018-01-25 03:46:19,023 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-25 03:46:19,051 INFO L93 Difference]: Finished difference Result 160 states and 172 transitions. [2018-01-25 03:46:19,052 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-01-25 03:46:19,052 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 27 [2018-01-25 03:46:19,052 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-25 03:46:19,053 INFO L225 Difference]: With dead ends: 160 [2018-01-25 03:46:19,053 INFO L226 Difference]: Without dead ends: 159 [2018-01-25 03:46:19,054 INFO L525 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=58, Invalid=124, Unknown=0, NotChecked=0, Total=182 [2018-01-25 03:46:19,054 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 159 states. [2018-01-25 03:46:19,060 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 159 to 150. [2018-01-25 03:46:19,060 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 150 states. [2018-01-25 03:46:19,062 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 150 states to 150 states and 160 transitions. [2018-01-25 03:46:19,062 INFO L78 Accepts]: Start accepts. Automaton has 150 states and 160 transitions. Word has length 27 [2018-01-25 03:46:19,062 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-25 03:46:19,062 INFO L432 AbstractCegarLoop]: Abstraction has 150 states and 160 transitions. [2018-01-25 03:46:19,062 INFO L433 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-01-25 03:46:19,063 INFO L276 IsEmpty]: Start isEmpty. Operand 150 states and 160 transitions. [2018-01-25 03:46:19,063 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2018-01-25 03:46:19,063 INFO L314 BasicCegarLoop]: Found error trace [2018-01-25 03:46:19,064 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] [2018-01-25 03:46:19,064 INFO L371 AbstractCegarLoop]: === Iteration 10 === [mainErr51RequiresViolation, mainErr26RequiresViolation, mainErr54RequiresViolation, mainErr66RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr31RequiresViolation, mainErr46RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr58RequiresViolation, mainErr62RequiresViolation, mainErr15RequiresViolation, mainErr49RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr68EnsuresViolation, mainErr55RequiresViolation, mainErr65RequiresViolation, mainErr17RequiresViolation, mainErr42RequiresViolation, mainErr30RequiresViolation, mainErr11RequiresViolation, mainErr57RequiresViolation, mainErr63RequiresViolation, mainErr24RequiresViolation, mainErr44RequiresViolation, mainErr10RequiresViolation, mainErr43RequiresViolation, mainErr4RequiresViolation, mainErr50RequiresViolation, mainErr37RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr36RequiresViolation, mainErr61RequiresViolation, mainErr59RequiresViolation, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr21RequiresViolation, mainErr41RequiresViolation, mainErr56RequiresViolation, mainErr64RequiresViolation, mainErr48RequiresViolation, mainErr39RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr52RequiresViolation, mainErr45RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr60RequiresViolation, mainErr9RequiresViolation, mainErr67RequiresViolation, mainErr53RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr8RequiresViolation, mainErr34RequiresViolation, mainErr47RequiresViolation, mainErr14RequiresViolation, mainErr40RequiresViolation]=== [2018-01-25 03:46:19,064 INFO L82 PathProgramCache]: Analyzing trace with hash 1665799663, now seen corresponding path program 1 times [2018-01-25 03:46:19,064 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-25 03:46:19,065 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-25 03:46:19,066 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-25 03:46:19,066 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-25 03:46:19,066 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-25 03:46:19,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-25 03:46:19,085 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-25 03:46:19,272 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 03:46:19,272 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-25 03:46:19,272 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2018-01-25 03:46:19,272 INFO L252 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-01-25 03:46:19,272 INFO L409 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-01-25 03:46:19,272 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-01-25 03:46:19,273 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2018-01-25 03:46:19,273 INFO L87 Difference]: Start difference. First operand 150 states and 160 transitions. Second operand 10 states. [2018-01-25 03:46:20,082 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-25 03:46:20,082 INFO L93 Difference]: Finished difference Result 186 states and 199 transitions. [2018-01-25 03:46:20,082 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2018-01-25 03:46:20,083 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 27 [2018-01-25 03:46:20,083 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-25 03:46:20,084 INFO L225 Difference]: With dead ends: 186 [2018-01-25 03:46:20,084 INFO L226 Difference]: Without dead ends: 175 [2018-01-25 03:46:20,084 INFO L525 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=129, Invalid=291, Unknown=0, NotChecked=0, Total=420 [2018-01-25 03:46:20,085 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 175 states. [2018-01-25 03:46:20,089 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 175 to 155. [2018-01-25 03:46:20,090 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 155 states. [2018-01-25 03:46:20,091 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 155 states to 155 states and 165 transitions. [2018-01-25 03:46:20,091 INFO L78 Accepts]: Start accepts. Automaton has 155 states and 165 transitions. Word has length 27 [2018-01-25 03:46:20,091 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-25 03:46:20,091 INFO L432 AbstractCegarLoop]: Abstraction has 155 states and 165 transitions. [2018-01-25 03:46:20,092 INFO L433 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-01-25 03:46:20,092 INFO L276 IsEmpty]: Start isEmpty. Operand 155 states and 165 transitions. [2018-01-25 03:46:20,093 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2018-01-25 03:46:20,093 INFO L314 BasicCegarLoop]: Found error trace [2018-01-25 03:46:20,093 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, 1] [2018-01-25 03:46:20,093 INFO L371 AbstractCegarLoop]: === Iteration 11 === [mainErr51RequiresViolation, mainErr26RequiresViolation, mainErr54RequiresViolation, mainErr66RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr31RequiresViolation, mainErr46RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr58RequiresViolation, mainErr62RequiresViolation, mainErr15RequiresViolation, mainErr49RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr68EnsuresViolation, mainErr55RequiresViolation, mainErr65RequiresViolation, mainErr17RequiresViolation, mainErr42RequiresViolation, mainErr30RequiresViolation, mainErr11RequiresViolation, mainErr57RequiresViolation, mainErr63RequiresViolation, mainErr24RequiresViolation, mainErr44RequiresViolation, mainErr10RequiresViolation, mainErr43RequiresViolation, mainErr4RequiresViolation, mainErr50RequiresViolation, mainErr37RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr36RequiresViolation, mainErr61RequiresViolation, mainErr59RequiresViolation, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr21RequiresViolation, mainErr41RequiresViolation, mainErr56RequiresViolation, mainErr64RequiresViolation, mainErr48RequiresViolation, mainErr39RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr52RequiresViolation, mainErr45RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr60RequiresViolation, mainErr9RequiresViolation, mainErr67RequiresViolation, mainErr53RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr8RequiresViolation, mainErr34RequiresViolation, mainErr47RequiresViolation, mainErr14RequiresViolation, mainErr40RequiresViolation]=== [2018-01-25 03:46:20,094 INFO L82 PathProgramCache]: Analyzing trace with hash 37442029, now seen corresponding path program 1 times [2018-01-25 03:46:20,094 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-25 03:46:20,095 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-25 03:46:20,096 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-25 03:46:20,096 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-25 03:46:20,096 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-25 03:46:20,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-25 03:46:20,112 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-25 03:46:20,195 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 03:46:20,196 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-25 03:46:20,196 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-01-25 03:46:20,196 INFO L252 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-01-25 03:46:20,196 INFO L409 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-01-25 03:46:20,196 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-01-25 03:46:20,197 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-01-25 03:46:20,197 INFO L87 Difference]: Start difference. First operand 155 states and 165 transitions. Second operand 5 states. [2018-01-25 03:46:20,393 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-25 03:46:20,393 INFO L93 Difference]: Finished difference Result 228 states and 246 transitions. [2018-01-25 03:46:20,393 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-01-25 03:46:20,393 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 34 [2018-01-25 03:46:20,394 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-25 03:46:20,395 INFO L225 Difference]: With dead ends: 228 [2018-01-25 03:46:20,395 INFO L226 Difference]: Without dead ends: 227 [2018-01-25 03:46:20,395 INFO L525 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2018-01-25 03:46:20,395 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 227 states. [2018-01-25 03:46:20,399 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 227 to 154. [2018-01-25 03:46:20,400 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 154 states. [2018-01-25 03:46:20,400 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 154 states to 154 states and 164 transitions. [2018-01-25 03:46:20,401 INFO L78 Accepts]: Start accepts. Automaton has 154 states and 164 transitions. Word has length 34 [2018-01-25 03:46:20,401 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-25 03:46:20,401 INFO L432 AbstractCegarLoop]: Abstraction has 154 states and 164 transitions. [2018-01-25 03:46:20,401 INFO L433 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-01-25 03:46:20,401 INFO L276 IsEmpty]: Start isEmpty. Operand 154 states and 164 transitions. [2018-01-25 03:46:20,402 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2018-01-25 03:46:20,402 INFO L314 BasicCegarLoop]: Found error trace [2018-01-25 03:46:20,403 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, 1] [2018-01-25 03:46:20,403 INFO L371 AbstractCegarLoop]: === Iteration 12 === [mainErr51RequiresViolation, mainErr26RequiresViolation, mainErr54RequiresViolation, mainErr66RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr31RequiresViolation, mainErr46RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr58RequiresViolation, mainErr62RequiresViolation, mainErr15RequiresViolation, mainErr49RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr68EnsuresViolation, mainErr55RequiresViolation, mainErr65RequiresViolation, mainErr17RequiresViolation, mainErr42RequiresViolation, mainErr30RequiresViolation, mainErr11RequiresViolation, mainErr57RequiresViolation, mainErr63RequiresViolation, mainErr24RequiresViolation, mainErr44RequiresViolation, mainErr10RequiresViolation, mainErr43RequiresViolation, mainErr4RequiresViolation, mainErr50RequiresViolation, mainErr37RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr36RequiresViolation, mainErr61RequiresViolation, mainErr59RequiresViolation, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr21RequiresViolation, mainErr41RequiresViolation, mainErr56RequiresViolation, mainErr64RequiresViolation, mainErr48RequiresViolation, mainErr39RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr52RequiresViolation, mainErr45RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr60RequiresViolation, mainErr9RequiresViolation, mainErr67RequiresViolation, mainErr53RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr8RequiresViolation, mainErr34RequiresViolation, mainErr47RequiresViolation, mainErr14RequiresViolation, mainErr40RequiresViolation]=== [2018-01-25 03:46:20,403 INFO L82 PathProgramCache]: Analyzing trace with hash 37442030, now seen corresponding path program 1 times [2018-01-25 03:46:20,403 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-25 03:46:20,404 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-25 03:46:20,405 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-25 03:46:20,405 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-25 03:46:20,405 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-25 03:46:20,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-25 03:46:20,419 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-25 03:46:20,498 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 03:46:20,498 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-25 03:46:20,498 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-01-25 03:46:20,498 INFO L252 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-01-25 03:46:20,498 INFO L409 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-01-25 03:46:20,498 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-01-25 03:46:20,499 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-01-25 03:46:20,499 INFO L87 Difference]: Start difference. First operand 154 states and 164 transitions. Second operand 5 states. [2018-01-25 03:46:20,948 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-25 03:46:20,948 INFO L93 Difference]: Finished difference Result 255 states and 274 transitions. [2018-01-25 03:46:20,949 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-01-25 03:46:20,949 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 34 [2018-01-25 03:46:20,949 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-25 03:46:20,951 INFO L225 Difference]: With dead ends: 255 [2018-01-25 03:46:20,951 INFO L226 Difference]: Without dead ends: 254 [2018-01-25 03:46:20,951 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 03:46:20,952 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 254 states. [2018-01-25 03:46:20,961 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 254 to 153. [2018-01-25 03:46:20,961 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 153 states. [2018-01-25 03:46:20,962 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 153 states to 153 states and 163 transitions. [2018-01-25 03:46:20,963 INFO L78 Accepts]: Start accepts. Automaton has 153 states and 163 transitions. Word has length 34 [2018-01-25 03:46:20,963 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-25 03:46:20,963 INFO L432 AbstractCegarLoop]: Abstraction has 153 states and 163 transitions. [2018-01-25 03:46:20,963 INFO L433 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-01-25 03:46:20,963 INFO L276 IsEmpty]: Start isEmpty. Operand 153 states and 163 transitions. [2018-01-25 03:46:20,964 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2018-01-25 03:46:20,965 INFO L314 BasicCegarLoop]: Found error trace [2018-01-25 03:46:20,965 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, 1] [2018-01-25 03:46:20,965 INFO L371 AbstractCegarLoop]: === Iteration 13 === [mainErr51RequiresViolation, mainErr26RequiresViolation, mainErr54RequiresViolation, mainErr66RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr31RequiresViolation, mainErr46RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr58RequiresViolation, mainErr62RequiresViolation, mainErr15RequiresViolation, mainErr49RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr68EnsuresViolation, mainErr55RequiresViolation, mainErr65RequiresViolation, mainErr17RequiresViolation, mainErr42RequiresViolation, mainErr30RequiresViolation, mainErr11RequiresViolation, mainErr57RequiresViolation, mainErr63RequiresViolation, mainErr24RequiresViolation, mainErr44RequiresViolation, mainErr10RequiresViolation, mainErr43RequiresViolation, mainErr4RequiresViolation, mainErr50RequiresViolation, mainErr37RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr36RequiresViolation, mainErr61RequiresViolation, mainErr59RequiresViolation, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr21RequiresViolation, mainErr41RequiresViolation, mainErr56RequiresViolation, mainErr64RequiresViolation, mainErr48RequiresViolation, mainErr39RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr52RequiresViolation, mainErr45RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr60RequiresViolation, mainErr9RequiresViolation, mainErr67RequiresViolation, mainErr53RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr8RequiresViolation, mainErr34RequiresViolation, mainErr47RequiresViolation, mainErr14RequiresViolation, mainErr40RequiresViolation]=== [2018-01-25 03:46:20,965 INFO L82 PathProgramCache]: Analyzing trace with hash -1696437201, now seen corresponding path program 1 times [2018-01-25 03:46:20,965 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-25 03:46:20,966 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-25 03:46:20,966 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-25 03:46:20,967 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-25 03:46:20,967 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-25 03:46:20,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-25 03:46:20,978 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-25 03:46:21,117 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 03:46:21,118 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-25 03:46:21,118 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2018-01-25 03:46:21,118 INFO L252 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-01-25 03:46:21,118 INFO L409 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-01-25 03:46:21,119 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-01-25 03:46:21,119 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2018-01-25 03:46:21,119 INFO L87 Difference]: Start difference. First operand 153 states and 163 transitions. Second operand 8 states. [2018-01-25 03:46:21,299 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-25 03:46:21,299 INFO L93 Difference]: Finished difference Result 222 states and 237 transitions. [2018-01-25 03:46:21,299 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-01-25 03:46:21,299 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 34 [2018-01-25 03:46:21,300 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-25 03:46:21,300 INFO L225 Difference]: With dead ends: 222 [2018-01-25 03:46:21,300 INFO L226 Difference]: Without dead ends: 183 [2018-01-25 03:46:21,301 INFO L525 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=63, Invalid=119, Unknown=0, NotChecked=0, Total=182 [2018-01-25 03:46:21,301 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 183 states. [2018-01-25 03:46:21,307 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 183 to 153. [2018-01-25 03:46:21,307 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 153 states. [2018-01-25 03:46:21,308 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 153 states to 153 states and 162 transitions. [2018-01-25 03:46:21,309 INFO L78 Accepts]: Start accepts. Automaton has 153 states and 162 transitions. Word has length 34 [2018-01-25 03:46:21,309 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-25 03:46:21,309 INFO L432 AbstractCegarLoop]: Abstraction has 153 states and 162 transitions. [2018-01-25 03:46:21,309 INFO L433 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-01-25 03:46:21,309 INFO L276 IsEmpty]: Start isEmpty. Operand 153 states and 162 transitions. [2018-01-25 03:46:21,310 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2018-01-25 03:46:21,311 INFO L314 BasicCegarLoop]: Found error trace [2018-01-25 03:46:21,311 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, 1, 1, 1] [2018-01-25 03:46:21,311 INFO L371 AbstractCegarLoop]: === Iteration 14 === [mainErr51RequiresViolation, mainErr26RequiresViolation, mainErr54RequiresViolation, mainErr66RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr31RequiresViolation, mainErr46RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr58RequiresViolation, mainErr62RequiresViolation, mainErr15RequiresViolation, mainErr49RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr68EnsuresViolation, mainErr55RequiresViolation, mainErr65RequiresViolation, mainErr17RequiresViolation, mainErr42RequiresViolation, mainErr30RequiresViolation, mainErr11RequiresViolation, mainErr57RequiresViolation, mainErr63RequiresViolation, mainErr24RequiresViolation, mainErr44RequiresViolation, mainErr10RequiresViolation, mainErr43RequiresViolation, mainErr4RequiresViolation, mainErr50RequiresViolation, mainErr37RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr36RequiresViolation, mainErr61RequiresViolation, mainErr59RequiresViolation, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr21RequiresViolation, mainErr41RequiresViolation, mainErr56RequiresViolation, mainErr64RequiresViolation, mainErr48RequiresViolation, mainErr39RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr52RequiresViolation, mainErr45RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr60RequiresViolation, mainErr9RequiresViolation, mainErr67RequiresViolation, mainErr53RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr8RequiresViolation, mainErr34RequiresViolation, mainErr47RequiresViolation, mainErr14RequiresViolation, mainErr40RequiresViolation]=== [2018-01-25 03:46:21,311 INFO L82 PathProgramCache]: Analyzing trace with hash -1185742895, now seen corresponding path program 1 times [2018-01-25 03:46:21,311 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-25 03:46:21,313 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-25 03:46:21,313 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-25 03:46:21,313 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-25 03:46:21,313 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-25 03:46:21,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-25 03:46:21,326 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-25 03:46:21,489 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 03:46:21,489 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-01-25 03:46:21,489 INFO L187 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-01-25 03:46:21,490 INFO L199 CegarAbsIntRunner]: Running AI on error trace of length 37 with the following transitions: [2018-01-25 03:46:21,492 INFO L201 CegarAbsIntRunner]: [0], [1], [2], [5], [8], [11], [12], [13], [16], [19], [22], [26], [28], [31], [146], [150], [155], [159], [167], [168], [175], [179], [187], [193], [194], [195], [243], [245], [248], [301], [302], [306], [307], [308] [2018-01-25 03:46:21,541 INFO L147 AbstractInterpreter]: Using domain VPDomain [2018-01-25 03:46:21,541 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