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-01_true-unreach-call_true-valid-memsafety.i -------------------------------------------------------------------------------- This is Ultimate 0.1.23-6b94a2f [2018-01-25 03:44:07,066 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-01-25 03:44:07,068 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-01-25 03:44:07,083 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-01-25 03:44:07,083 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-01-25 03:44:07,084 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-01-25 03:44:07,085 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-01-25 03:44:07,087 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-01-25 03:44:07,089 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-01-25 03:44:07,090 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-01-25 03:44:07,091 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-01-25 03:44:07,091 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-01-25 03:44:07,092 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-01-25 03:44:07,093 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-01-25 03:44:07,094 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-01-25 03:44:07,097 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-01-25 03:44:07,099 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-01-25 03:44:07,101 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-01-25 03:44:07,102 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-01-25 03:44:07,104 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-01-25 03:44:07,106 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-01-25 03:44:07,106 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-01-25 03:44:07,107 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-01-25 03:44:07,108 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-01-25 03:44:07,108 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-01-25 03:44:07,110 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-01-25 03:44:07,110 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-01-25 03:44:07,111 INFO L177 SettingsManager]: PEA to Boogie provides no preferences, ignoring... [2018-01-25 03:44:07,111 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-01-25 03:44:07,111 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-01-25 03:44:07,112 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-01-25 03:44:07,112 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 03:44:07,121 INFO L110 SettingsManager]: Loading preferences was successful [2018-01-25 03:44:07,121 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-01-25 03:44:07,122 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-01-25 03:44:07,122 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-01-25 03:44:07,122 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-01-25 03:44:07,122 INFO L133 SettingsManager]: * Weq Fattening=true [2018-01-25 03:44:07,123 INFO L133 SettingsManager]: * Flatten before fatten=true [2018-01-25 03:44:07,123 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=VPDomain [2018-01-25 03:44:07,123 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-01-25 03:44:07,123 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-01-25 03:44:07,123 INFO L133 SettingsManager]: * sizeof long=4 [2018-01-25 03:44:07,123 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-01-25 03:44:07,124 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-01-25 03:44:07,124 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-01-25 03:44:07,124 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-01-25 03:44:07,124 INFO L133 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2018-01-25 03:44:07,124 INFO L133 SettingsManager]: * Bitprecise bitfields=true [2018-01-25 03:44:07,124 INFO L133 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2018-01-25 03:44:07,124 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-01-25 03:44:07,124 INFO L133 SettingsManager]: * sizeof long double=12 [2018-01-25 03:44:07,125 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-01-25 03:44:07,125 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-01-25 03:44:07,125 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-01-25 03:44:07,125 INFO L133 SettingsManager]: * Add additional assume for each assert=false [2018-01-25 03:44:07,125 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-01-25 03:44:07,126 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-01-25 03:44:07,126 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-01-25 03:44:07,126 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-01-25 03:44:07,126 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-01-25 03:44:07,126 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-01-25 03:44:07,126 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-01-25 03:44:07,126 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-01-25 03:44:07,127 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-01-25 03:44:07,127 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-01-25 03:44:07,127 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-01-25 03:44:07,128 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-01-25 03:44:07,128 INFO L133 SettingsManager]: * TransformationType=HEAP_SEPARATOR [2018-01-25 03:44:07,159 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-01-25 03:44:07,169 INFO L266 ainManager$Toolchain]: [Toolchain 1]: Parser(s) successfully initialized [2018-01-25 03:44:07,173 INFO L222 ainManager$Toolchain]: [Toolchain 1]: Toolchain data selected. [2018-01-25 03:44:07,175 INFO L271 PluginConnector]: Initializing CDTParser... [2018-01-25 03:44:07,175 INFO L276 PluginConnector]: CDTParser initialized [2018-01-25 03:44:07,176 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/forester-heap/dll-01_true-unreach-call_true-valid-memsafety.i [2018-01-25 03:44:07,454 INFO L304 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-01-25 03:44:07,461 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-01-25 03:44:07,462 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-01-25 03:44:07,463 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-01-25 03:44:07,470 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-01-25 03:44:07,472 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.01 03:44:07" (1/1) ... [2018-01-25 03:44:07,476 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@44e562a1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.01 03:44:07, skipping insertion in model container [2018-01-25 03:44:07,476 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.01 03:44:07" (1/1) ... [2018-01-25 03:44:07,496 INFO L153 Dispatcher]: Using SV-COMP mode [2018-01-25 03:44:07,564 INFO L153 Dispatcher]: Using SV-COMP mode [2018-01-25 03:44:07,687 INFO L450 PostProcessor]: Settings: Checked method=main [2018-01-25 03:44:07,712 INFO L450 PostProcessor]: Settings: Checked method=main [2018-01-25 03:44:07,737 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.01 03:44:07 WrapperNode [2018-01-25 03:44:07,737 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-01-25 03:44:07,738 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-01-25 03:44:07,738 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-01-25 03:44:07,738 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-01-25 03:44:07,749 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.01 03:44:07" (1/1) ... [2018-01-25 03:44:07,749 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.01 03:44:07" (1/1) ... [2018-01-25 03:44:07,758 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.01 03:44:07" (1/1) ... [2018-01-25 03:44:07,759 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.01 03:44:07" (1/1) ... [2018-01-25 03:44:07,764 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.01 03:44:07" (1/1) ... [2018-01-25 03:44:07,770 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.01 03:44:07" (1/1) ... [2018-01-25 03:44:07,772 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.01 03:44:07" (1/1) ... [2018-01-25 03:44:07,775 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-01-25 03:44:07,775 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-01-25 03:44:07,775 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-01-25 03:44:07,775 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-01-25 03:44:07,776 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.01 03:44:07" (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 03:44:07,834 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-01-25 03:44:07,834 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-01-25 03:44:07,834 INFO L136 BoogieDeclarations]: Found implementation of procedure main [2018-01-25 03:44:07,834 INFO L128 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2018-01-25 03:44:07,834 INFO L128 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2018-01-25 03:44:07,835 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.free [2018-01-25 03:44:07,835 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-01-25 03:44:07,835 INFO L128 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-01-25 03:44:07,835 INFO L128 BoogieDeclarations]: Found specification of procedure malloc [2018-01-25 03:44:07,835 INFO L128 BoogieDeclarations]: Found specification of procedure free [2018-01-25 03:44:07,835 INFO L128 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2018-01-25 03:44:07,836 INFO L128 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2018-01-25 03:44:07,836 INFO L128 BoogieDeclarations]: Found specification of procedure main [2018-01-25 03:44:07,836 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-01-25 03:44:07,836 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-01-25 03:44:08,667 INFO L257 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-01-25 03:44:08,667 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.01 03:44:08 BoogieIcfgContainer [2018-01-25 03:44:08,667 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-01-25 03:44:08,668 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-01-25 03:44:08,669 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-01-25 03:44:08,671 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-01-25 03:44:08,671 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.01 03:44:07" (1/3) ... [2018-01-25 03:44:08,672 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@58442451 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.01 03:44:08, skipping insertion in model container [2018-01-25 03:44:08,672 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.01 03:44:07" (2/3) ... [2018-01-25 03:44:08,673 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@58442451 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.01 03:44:08, skipping insertion in model container [2018-01-25 03:44:08,673 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.01 03:44:08" (3/3) ... [2018-01-25 03:44:08,676 INFO L105 eAbstractionObserver]: Analyzing ICFG dll-01_true-unreach-call_true-valid-memsafety.i [2018-01-25 03:44:08,683 INFO L130 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-01-25 03:44:08,689 INFO L142 ceAbstractionStarter]: Appying trace abstraction to program that has 71 error locations. [2018-01-25 03:44:08,737 INFO L322 AbstractCegarLoop]: Interprodecural is true [2018-01-25 03:44:08,737 INFO L323 AbstractCegarLoop]: Hoare is true [2018-01-25 03:44:08,737 INFO L324 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-01-25 03:44:08,738 INFO L325 AbstractCegarLoop]: Backedges is TWOTRACK [2018-01-25 03:44:08,738 INFO L326 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-01-25 03:44:08,738 INFO L327 AbstractCegarLoop]: Difference is false [2018-01-25 03:44:08,738 INFO L328 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-01-25 03:44:08,738 INFO L333 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-01-25 03:44:08,739 INFO L87 2NestedWordAutomaton]: Mode: main mode - execution starts in main procedure [2018-01-25 03:44:08,768 INFO L276 IsEmpty]: Start isEmpty. Operand 195 states. [2018-01-25 03:44:08,774 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2018-01-25 03:44:08,774 INFO L314 BasicCegarLoop]: Found error trace [2018-01-25 03:44:08,775 INFO L322 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2018-01-25 03:44:08,776 INFO L371 AbstractCegarLoop]: === Iteration 1 === [mainErr51RequiresViolation, mainErr69RequiresViolation, mainErr70EnsuresViolation, mainErr26RequiresViolation, mainErr54RequiresViolation, mainErr66RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr31RequiresViolation, mainErr46RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr58RequiresViolation, mainErr62RequiresViolation, mainErr15RequiresViolation, mainErr49RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, 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, mainErr68RequiresViolation, mainErr45RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr60RequiresViolation, mainErr9RequiresViolation, mainErr67RequiresViolation, mainErr53RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr8RequiresViolation, mainErr34RequiresViolation, mainErr47RequiresViolation, mainErr14RequiresViolation, mainErr40RequiresViolation]=== [2018-01-25 03:44:08,781 INFO L82 PathProgramCache]: Analyzing trace with hash 1231756068, now seen corresponding path program 1 times [2018-01-25 03:44:08,784 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-25 03:44:08,842 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-25 03:44:08,842 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-25 03:44:08,842 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-25 03:44:08,842 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-25 03:44:08,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-25 03:44:08,901 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-25 03:44:09,038 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 03:44:09,040 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-25 03:44:09,041 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-01-25 03:44:09,041 INFO L252 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-01-25 03:44:09,044 INFO L409 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-01-25 03:44:09,144 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-01-25 03:44:09,144 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-01-25 03:44:09,147 INFO L87 Difference]: Start difference. First operand 195 states. Second operand 4 states. [2018-01-25 03:44:09,510 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-25 03:44:09,510 INFO L93 Difference]: Finished difference Result 402 states and 529 transitions. [2018-01-25 03:44:09,510 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-01-25 03:44:09,511 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 8 [2018-01-25 03:44:09,512 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-25 03:44:09,524 INFO L225 Difference]: With dead ends: 402 [2018-01-25 03:44:09,524 INFO L226 Difference]: Without dead ends: 214 [2018-01-25 03:44:09,529 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 03:44:09,546 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 214 states. [2018-01-25 03:44:09,573 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 214 to 185. [2018-01-25 03:44:09,575 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 185 states. [2018-01-25 03:44:09,577 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 185 states to 185 states and 196 transitions. [2018-01-25 03:44:09,579 INFO L78 Accepts]: Start accepts. Automaton has 185 states and 196 transitions. Word has length 8 [2018-01-25 03:44:09,579 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-25 03:44:09,579 INFO L432 AbstractCegarLoop]: Abstraction has 185 states and 196 transitions. [2018-01-25 03:44:09,580 INFO L433 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-01-25 03:44:09,580 INFO L276 IsEmpty]: Start isEmpty. Operand 185 states and 196 transitions. [2018-01-25 03:44:09,580 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2018-01-25 03:44:09,580 INFO L314 BasicCegarLoop]: Found error trace [2018-01-25 03:44:09,581 INFO L322 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2018-01-25 03:44:09,581 INFO L371 AbstractCegarLoop]: === Iteration 2 === [mainErr51RequiresViolation, mainErr69RequiresViolation, mainErr70EnsuresViolation, mainErr26RequiresViolation, mainErr54RequiresViolation, mainErr66RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr31RequiresViolation, mainErr46RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr58RequiresViolation, mainErr62RequiresViolation, mainErr15RequiresViolation, mainErr49RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, 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, mainErr68RequiresViolation, mainErr45RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr60RequiresViolation, mainErr9RequiresViolation, mainErr67RequiresViolation, mainErr53RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr8RequiresViolation, mainErr34RequiresViolation, mainErr47RequiresViolation, mainErr14RequiresViolation, mainErr40RequiresViolation]=== [2018-01-25 03:44:09,582 INFO L82 PathProgramCache]: Analyzing trace with hash 1231756069, now seen corresponding path program 1 times [2018-01-25 03:44:09,582 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-25 03:44:09,583 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-25 03:44:09,584 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-25 03:44:09,584 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-25 03:44:09,584 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-25 03:44:09,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-25 03:44:09,604 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-25 03:44:09,733 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 03:44:09,733 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-25 03:44:09,733 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-01-25 03:44:09,734 INFO L252 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-01-25 03:44:09,735 INFO L409 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-01-25 03:44:09,736 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-01-25 03:44:09,736 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-01-25 03:44:09,736 INFO L87 Difference]: Start difference. First operand 185 states and 196 transitions. Second operand 4 states. [2018-01-25 03:44:10,118 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-25 03:44:10,118 INFO L93 Difference]: Finished difference Result 218 states and 228 transitions. [2018-01-25 03:44:10,119 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-01-25 03:44:10,119 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 8 [2018-01-25 03:44:10,119 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-25 03:44:10,121 INFO L225 Difference]: With dead ends: 218 [2018-01-25 03:44:10,122 INFO L226 Difference]: Without dead ends: 206 [2018-01-25 03:44:10,123 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 03:44:10,123 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 206 states. [2018-01-25 03:44:10,139 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 206 to 195. [2018-01-25 03:44:10,140 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 195 states. [2018-01-25 03:44:10,141 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 195 states to 195 states and 213 transitions. [2018-01-25 03:44:10,141 INFO L78 Accepts]: Start accepts. Automaton has 195 states and 213 transitions. Word has length 8 [2018-01-25 03:44:10,142 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-25 03:44:10,142 INFO L432 AbstractCegarLoop]: Abstraction has 195 states and 213 transitions. [2018-01-25 03:44:10,142 INFO L433 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-01-25 03:44:10,142 INFO L276 IsEmpty]: Start isEmpty. Operand 195 states and 213 transitions. [2018-01-25 03:44:10,143 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2018-01-25 03:44:10,143 INFO L314 BasicCegarLoop]: Found error trace [2018-01-25 03:44:10,143 INFO L322 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-25 03:44:10,147 INFO L371 AbstractCegarLoop]: === Iteration 3 === [mainErr51RequiresViolation, mainErr69RequiresViolation, mainErr70EnsuresViolation, mainErr26RequiresViolation, mainErr54RequiresViolation, mainErr66RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr31RequiresViolation, mainErr46RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr58RequiresViolation, mainErr62RequiresViolation, mainErr15RequiresViolation, mainErr49RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, 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, mainErr68RequiresViolation, mainErr45RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr60RequiresViolation, mainErr9RequiresViolation, mainErr67RequiresViolation, mainErr53RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr8RequiresViolation, mainErr34RequiresViolation, mainErr47RequiresViolation, mainErr14RequiresViolation, mainErr40RequiresViolation]=== [2018-01-25 03:44:10,147 INFO L82 PathProgramCache]: Analyzing trace with hash -268288902, now seen corresponding path program 1 times [2018-01-25 03:44:10,148 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-25 03:44:10,149 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-25 03:44:10,149 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-25 03:44:10,149 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-25 03:44:10,149 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-25 03:44:10,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-25 03:44:10,194 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-25 03:44:10,283 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 03:44:10,283 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-25 03:44:10,283 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-01-25 03:44:10,284 INFO L252 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-01-25 03:44:10,284 INFO L409 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-01-25 03:44:10,284 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-01-25 03:44:10,284 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-01-25 03:44:10,285 INFO L87 Difference]: Start difference. First operand 195 states and 213 transitions. Second operand 5 states. [2018-01-25 03:44:11,012 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-25 03:44:11,013 INFO L93 Difference]: Finished difference Result 334 states and 360 transitions. [2018-01-25 03:44:11,013 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-01-25 03:44:11,013 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 18 [2018-01-25 03:44:11,013 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-25 03:44:11,015 INFO L225 Difference]: With dead ends: 334 [2018-01-25 03:44:11,015 INFO L226 Difference]: Without dead ends: 333 [2018-01-25 03:44:11,016 INFO L525 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2018-01-25 03:44:11,016 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 333 states. [2018-01-25 03:44:11,032 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 333 to 194. [2018-01-25 03:44:11,032 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 194 states. [2018-01-25 03:44:11,033 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 194 states to 194 states and 212 transitions. [2018-01-25 03:44:11,033 INFO L78 Accepts]: Start accepts. Automaton has 194 states and 212 transitions. Word has length 18 [2018-01-25 03:44:11,034 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-25 03:44:11,034 INFO L432 AbstractCegarLoop]: Abstraction has 194 states and 212 transitions. [2018-01-25 03:44:11,034 INFO L433 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-01-25 03:44:11,034 INFO L276 IsEmpty]: Start isEmpty. Operand 194 states and 212 transitions. [2018-01-25 03:44:11,035 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2018-01-25 03:44:11,035 INFO L314 BasicCegarLoop]: Found error trace [2018-01-25 03:44:11,035 INFO L322 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-25 03:44:11,035 INFO L371 AbstractCegarLoop]: === Iteration 4 === [mainErr51RequiresViolation, mainErr69RequiresViolation, mainErr70EnsuresViolation, mainErr26RequiresViolation, mainErr54RequiresViolation, mainErr66RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr31RequiresViolation, mainErr46RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr58RequiresViolation, mainErr62RequiresViolation, mainErr15RequiresViolation, mainErr49RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, 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, mainErr68RequiresViolation, mainErr45RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr60RequiresViolation, mainErr9RequiresViolation, mainErr67RequiresViolation, mainErr53RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr8RequiresViolation, mainErr34RequiresViolation, mainErr47RequiresViolation, mainErr14RequiresViolation, mainErr40RequiresViolation]=== [2018-01-25 03:44:11,036 INFO L82 PathProgramCache]: Analyzing trace with hash -268288901, now seen corresponding path program 1 times [2018-01-25 03:44:11,036 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-25 03:44:11,036 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-25 03:44:11,037 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-25 03:44:11,037 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-25 03:44:11,037 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-25 03:44:11,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-25 03:44:11,056 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-25 03:44:11,133 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 03:44:11,133 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-25 03:44:11,133 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-01-25 03:44:11,133 INFO L252 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-01-25 03:44:11,134 INFO L409 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-01-25 03:44:11,134 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-01-25 03:44:11,134 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-01-25 03:44:11,134 INFO L87 Difference]: Start difference. First operand 194 states and 212 transitions. Second operand 5 states. [2018-01-25 03:44:11,661 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-25 03:44:11,662 INFO L93 Difference]: Finished difference Result 362 states and 397 transitions. [2018-01-25 03:44:11,662 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-01-25 03:44:11,662 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 18 [2018-01-25 03:44:11,663 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-25 03:44:11,665 INFO L225 Difference]: With dead ends: 362 [2018-01-25 03:44:11,665 INFO L226 Difference]: Without dead ends: 361 [2018-01-25 03:44:11,666 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 03:44:11,666 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 361 states. [2018-01-25 03:44:11,683 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 361 to 193. [2018-01-25 03:44:11,684 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 193 states. [2018-01-25 03:44:11,685 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 193 states to 193 states and 211 transitions. [2018-01-25 03:44:11,685 INFO L78 Accepts]: Start accepts. Automaton has 193 states and 211 transitions. Word has length 18 [2018-01-25 03:44:11,685 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-25 03:44:11,686 INFO L432 AbstractCegarLoop]: Abstraction has 193 states and 211 transitions. [2018-01-25 03:44:11,686 INFO L433 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-01-25 03:44:11,686 INFO L276 IsEmpty]: Start isEmpty. Operand 193 states and 211 transitions. [2018-01-25 03:44:11,686 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2018-01-25 03:44:11,686 INFO L314 BasicCegarLoop]: Found error trace [2018-01-25 03:44:11,686 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 03:44:11,687 INFO L371 AbstractCegarLoop]: === Iteration 5 === [mainErr51RequiresViolation, mainErr69RequiresViolation, mainErr70EnsuresViolation, mainErr26RequiresViolation, mainErr54RequiresViolation, mainErr66RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr31RequiresViolation, mainErr46RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr58RequiresViolation, mainErr62RequiresViolation, mainErr15RequiresViolation, mainErr49RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, 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, mainErr68RequiresViolation, mainErr45RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr60RequiresViolation, mainErr9RequiresViolation, mainErr67RequiresViolation, mainErr53RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr8RequiresViolation, mainErr34RequiresViolation, mainErr47RequiresViolation, mainErr14RequiresViolation, mainErr40RequiresViolation]=== [2018-01-25 03:44:11,687 INFO L82 PathProgramCache]: Analyzing trace with hash 339478269, now seen corresponding path program 1 times [2018-01-25 03:44:11,687 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-25 03:44:11,688 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-25 03:44:11,688 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-25 03:44:11,688 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-25 03:44:11,688 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-25 03:44:11,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-25 03:44:11,712 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-25 03:44:11,818 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 03:44:11,818 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-25 03:44:11,818 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-01-25 03:44:11,818 INFO L252 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-01-25 03:44:11,819 INFO L409 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-01-25 03:44:11,819 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-01-25 03:44:11,819 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2018-01-25 03:44:11,819 INFO L87 Difference]: Start difference. First operand 193 states and 211 transitions. Second operand 8 states. [2018-01-25 03:44:13,206 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-25 03:44:13,216 INFO L93 Difference]: Finished difference Result 336 states and 361 transitions. [2018-01-25 03:44:13,217 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-01-25 03:44:13,217 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 21 [2018-01-25 03:44:13,217 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-25 03:44:13,219 INFO L225 Difference]: With dead ends: 336 [2018-01-25 03:44:13,219 INFO L226 Difference]: Without dead ends: 335 [2018-01-25 03:44:13,220 INFO L525 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=51, Invalid=105, Unknown=0, NotChecked=0, Total=156 [2018-01-25 03:44:13,220 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 335 states. [2018-01-25 03:44:13,229 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 335 to 192. [2018-01-25 03:44:13,229 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 192 states. [2018-01-25 03:44:13,230 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 192 states to 192 states and 210 transitions. [2018-01-25 03:44:13,230 INFO L78 Accepts]: Start accepts. Automaton has 192 states and 210 transitions. Word has length 21 [2018-01-25 03:44:13,231 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-25 03:44:13,231 INFO L432 AbstractCegarLoop]: Abstraction has 192 states and 210 transitions. [2018-01-25 03:44:13,231 INFO L433 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-01-25 03:44:13,231 INFO L276 IsEmpty]: Start isEmpty. Operand 192 states and 210 transitions. [2018-01-25 03:44:13,232 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2018-01-25 03:44:13,232 INFO L314 BasicCegarLoop]: Found error trace [2018-01-25 03:44:13,232 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 03:44:13,232 INFO L371 AbstractCegarLoop]: === Iteration 6 === [mainErr51RequiresViolation, mainErr69RequiresViolation, mainErr70EnsuresViolation, mainErr26RequiresViolation, mainErr54RequiresViolation, mainErr66RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr31RequiresViolation, mainErr46RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr58RequiresViolation, mainErr62RequiresViolation, mainErr15RequiresViolation, mainErr49RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, 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, mainErr68RequiresViolation, mainErr45RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr60RequiresViolation, mainErr9RequiresViolation, mainErr67RequiresViolation, mainErr53RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr8RequiresViolation, mainErr34RequiresViolation, mainErr47RequiresViolation, mainErr14RequiresViolation, mainErr40RequiresViolation]=== [2018-01-25 03:44:13,233 INFO L82 PathProgramCache]: Analyzing trace with hash 339478270, now seen corresponding path program 1 times [2018-01-25 03:44:13,233 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-25 03:44:13,234 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-25 03:44:13,234 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-25 03:44:13,234 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-25 03:44:13,234 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-25 03:44:13,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-25 03:44:13,253 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-25 03:44:13,408 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-25 03:44:13,408 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-25 03:44:13,408 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-01-25 03:44:13,408 INFO L252 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-01-25 03:44:13,409 INFO L409 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-01-25 03:44:13,409 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-01-25 03:44:13,409 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2018-01-25 03:44:13,409 INFO L87 Difference]: Start difference. First operand 192 states and 210 transitions. Second operand 8 states. [2018-01-25 03:44:14,321 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-25 03:44:14,321 INFO L93 Difference]: Finished difference Result 337 states and 362 transitions. [2018-01-25 03:44:14,322 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-01-25 03:44:14,322 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 21 [2018-01-25 03:44:14,322 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-25 03:44:14,323 INFO L225 Difference]: With dead ends: 337 [2018-01-25 03:44:14,323 INFO L226 Difference]: Without dead ends: 336 [2018-01-25 03:44:14,324 INFO L525 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=51, Invalid=105, Unknown=0, NotChecked=0, Total=156 [2018-01-25 03:44:14,324 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 336 states. [2018-01-25 03:44:14,333 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 336 to 191. [2018-01-25 03:44:14,334 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 191 states. [2018-01-25 03:44:14,335 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 191 states to 191 states and 209 transitions. [2018-01-25 03:44:14,335 INFO L78 Accepts]: Start accepts. Automaton has 191 states and 209 transitions. Word has length 21 [2018-01-25 03:44:14,336 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-25 03:44:14,336 INFO L432 AbstractCegarLoop]: Abstraction has 191 states and 209 transitions. [2018-01-25 03:44:14,336 INFO L433 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-01-25 03:44:14,338 INFO L276 IsEmpty]: Start isEmpty. Operand 191 states and 209 transitions. [2018-01-25 03:44:14,339 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2018-01-25 03:44:14,339 INFO L314 BasicCegarLoop]: Found error trace [2018-01-25 03:44:14,339 INFO L322 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-25 03:44:14,339 INFO L371 AbstractCegarLoop]: === Iteration 7 === [mainErr51RequiresViolation, mainErr69RequiresViolation, mainErr70EnsuresViolation, mainErr26RequiresViolation, mainErr54RequiresViolation, mainErr66RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr31RequiresViolation, mainErr46RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr58RequiresViolation, mainErr62RequiresViolation, mainErr15RequiresViolation, mainErr49RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, 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, mainErr68RequiresViolation, mainErr45RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr60RequiresViolation, mainErr9RequiresViolation, mainErr67RequiresViolation, mainErr53RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr8RequiresViolation, mainErr34RequiresViolation, mainErr47RequiresViolation, mainErr14RequiresViolation, mainErr40RequiresViolation]=== [2018-01-25 03:44:14,339 INFO L82 PathProgramCache]: Analyzing trace with hash -1615330234, now seen corresponding path program 1 times [2018-01-25 03:44:14,339 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-25 03:44:14,340 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-25 03:44:14,340 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-25 03:44:14,341 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-25 03:44:14,341 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-25 03:44:14,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-25 03:44:14,355 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-25 03:44:14,441 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 03:44:14,441 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-25 03:44:14,441 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-01-25 03:44:14,441 INFO L252 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-01-25 03:44:14,442 INFO L409 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-01-25 03:44:14,442 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-01-25 03:44:14,442 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-01-25 03:44:14,442 INFO L87 Difference]: Start difference. First operand 191 states and 209 transitions. Second operand 5 states. [2018-01-25 03:44:14,615 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-25 03:44:14,615 INFO L93 Difference]: Finished difference Result 445 states and 485 transitions. [2018-01-25 03:44:14,618 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-01-25 03:44:14,619 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 27 [2018-01-25 03:44:14,619 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-25 03:44:14,621 INFO L225 Difference]: With dead ends: 445 [2018-01-25 03:44:14,621 INFO L226 Difference]: Without dead ends: 283 [2018-01-25 03:44:14,622 INFO L525 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 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 03:44:14,623 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 283 states. [2018-01-25 03:44:14,632 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 283 to 195. [2018-01-25 03:44:14,633 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 195 states. [2018-01-25 03:44:14,634 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 195 states to 195 states and 213 transitions. [2018-01-25 03:44:14,635 INFO L78 Accepts]: Start accepts. Automaton has 195 states and 213 transitions. Word has length 27 [2018-01-25 03:44:14,635 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-25 03:44:14,635 INFO L432 AbstractCegarLoop]: Abstraction has 195 states and 213 transitions. [2018-01-25 03:44:14,635 INFO L433 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-01-25 03:44:14,635 INFO L276 IsEmpty]: Start isEmpty. Operand 195 states and 213 transitions. [2018-01-25 03:44:14,636 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2018-01-25 03:44:14,637 INFO L314 BasicCegarLoop]: Found error trace [2018-01-25 03:44:14,637 INFO L322 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-25 03:44:14,637 INFO L371 AbstractCegarLoop]: === Iteration 8 === [mainErr51RequiresViolation, mainErr69RequiresViolation, mainErr70EnsuresViolation, mainErr26RequiresViolation, mainErr54RequiresViolation, mainErr66RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr31RequiresViolation, mainErr46RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr58RequiresViolation, mainErr62RequiresViolation, mainErr15RequiresViolation, mainErr49RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, 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, mainErr68RequiresViolation, mainErr45RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr60RequiresViolation, mainErr9RequiresViolation, mainErr67RequiresViolation, mainErr53RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr8RequiresViolation, mainErr34RequiresViolation, mainErr47RequiresViolation, mainErr14RequiresViolation, mainErr40RequiresViolation]=== [2018-01-25 03:44:14,637 INFO L82 PathProgramCache]: Analyzing trace with hash 803446251, now seen corresponding path program 1 times [2018-01-25 03:44:14,637 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-25 03:44:14,638 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-25 03:44:14,639 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-25 03:44:14,639 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-25 03:44:14,639 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-25 03:44:14,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-25 03:44:14,676 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-25 03:44:14,964 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 03:44:14,964 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-25 03:44:14,964 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-01-25 03:44:14,964 INFO L252 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-01-25 03:44:14,965 INFO L409 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-01-25 03:44:14,965 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-01-25 03:44:14,965 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-01-25 03:44:14,965 INFO L87 Difference]: Start difference. First operand 195 states and 213 transitions. Second operand 5 states. [2018-01-25 03:44:15,200 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-25 03:44:15,201 INFO L93 Difference]: Finished difference Result 217 states and 231 transitions. [2018-01-25 03:44:15,201 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-01-25 03:44:15,201 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 29 [2018-01-25 03:44:15,201 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-25 03:44:15,202 INFO L225 Difference]: With dead ends: 217 [2018-01-25 03:44:15,203 INFO L226 Difference]: Without dead ends: 204 [2018-01-25 03:44:15,203 INFO L525 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2018-01-25 03:44:15,203 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 204 states. [2018-01-25 03:44:15,212 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 204 to 186. [2018-01-25 03:44:15,213 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 186 states. [2018-01-25 03:44:15,214 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 186 states to 186 states and 204 transitions. [2018-01-25 03:44:15,215 INFO L78 Accepts]: Start accepts. Automaton has 186 states and 204 transitions. Word has length 29 [2018-01-25 03:44:15,215 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-25 03:44:15,215 INFO L432 AbstractCegarLoop]: Abstraction has 186 states and 204 transitions. [2018-01-25 03:44:15,215 INFO L433 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-01-25 03:44:15,215 INFO L276 IsEmpty]: Start isEmpty. Operand 186 states and 204 transitions. [2018-01-25 03:44:15,216 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2018-01-25 03:44:15,216 INFO L314 BasicCegarLoop]: Found error trace [2018-01-25 03:44:15,216 INFO L322 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-25 03:44:15,216 INFO L371 AbstractCegarLoop]: === Iteration 9 === [mainErr51RequiresViolation, mainErr69RequiresViolation, mainErr70EnsuresViolation, mainErr26RequiresViolation, mainErr54RequiresViolation, mainErr66RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr31RequiresViolation, mainErr46RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr58RequiresViolation, mainErr62RequiresViolation, mainErr15RequiresViolation, mainErr49RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, 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, mainErr68RequiresViolation, mainErr45RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr60RequiresViolation, mainErr9RequiresViolation, mainErr67RequiresViolation, mainErr53RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr8RequiresViolation, mainErr34RequiresViolation, mainErr47RequiresViolation, mainErr14RequiresViolation, mainErr40RequiresViolation]=== [2018-01-25 03:44:15,217 INFO L82 PathProgramCache]: Analyzing trace with hash 803446252, now seen corresponding path program 1 times [2018-01-25 03:44:15,217 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-25 03:44:15,217 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-25 03:44:15,217 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-25 03:44:15,217 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-25 03:44:15,218 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-25 03:44:15,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-25 03:44:15,240 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-25 03:44:15,318 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 03:44:15,318 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-25 03:44:15,319 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-01-25 03:44:15,319 INFO L252 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-01-25 03:44:15,319 INFO L409 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-01-25 03:44:15,319 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-01-25 03:44:15,319 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2018-01-25 03:44:15,319 INFO L87 Difference]: Start difference. First operand 186 states and 204 transitions. Second operand 7 states. [2018-01-25 03:44:15,652 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-25 03:44:15,652 INFO L93 Difference]: Finished difference Result 248 states and 262 transitions. [2018-01-25 03:44:15,652 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-01-25 03:44:15,652 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 29 [2018-01-25 03:44:15,653 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-25 03:44:15,654 INFO L225 Difference]: With dead ends: 248 [2018-01-25 03:44:15,654 INFO L226 Difference]: Without dead ends: 243 [2018-01-25 03:44:15,654 INFO L525 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2018-01-25 03:44:15,655 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 243 states. [2018-01-25 03:44:15,664 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 243 to 216. [2018-01-25 03:44:15,664 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 216 states. [2018-01-25 03:44:15,667 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 216 states to 216 states and 244 transitions. [2018-01-25 03:44:15,667 INFO L78 Accepts]: Start accepts. Automaton has 216 states and 244 transitions. Word has length 29 [2018-01-25 03:44:15,668 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-25 03:44:15,668 INFO L432 AbstractCegarLoop]: Abstraction has 216 states and 244 transitions. [2018-01-25 03:44:15,668 INFO L433 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-01-25 03:44:15,668 INFO L276 IsEmpty]: Start isEmpty. Operand 216 states and 244 transitions. [2018-01-25 03:44:15,669 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2018-01-25 03:44:15,669 INFO L314 BasicCegarLoop]: Found error trace [2018-01-25 03:44:15,669 INFO L322 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-25 03:44:15,669 INFO L371 AbstractCegarLoop]: === Iteration 10 === [mainErr51RequiresViolation, mainErr69RequiresViolation, mainErr70EnsuresViolation, mainErr26RequiresViolation, mainErr54RequiresViolation, mainErr66RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr31RequiresViolation, mainErr46RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr58RequiresViolation, mainErr62RequiresViolation, mainErr15RequiresViolation, mainErr49RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, 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, mainErr68RequiresViolation, mainErr45RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr60RequiresViolation, mainErr9RequiresViolation, mainErr67RequiresViolation, mainErr53RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr8RequiresViolation, mainErr34RequiresViolation, mainErr47RequiresViolation, mainErr14RequiresViolation, mainErr40RequiresViolation]=== [2018-01-25 03:44:15,670 INFO L82 PathProgramCache]: Analyzing trace with hash -982263634, now seen corresponding path program 1 times [2018-01-25 03:44:15,670 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-25 03:44:15,671 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-25 03:44:15,671 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-25 03:44:15,671 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-25 03:44:15,672 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-25 03:44:15,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-25 03:44:15,684 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-25 03:44:15,846 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 03:44:15,846 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-25 03:44:15,846 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-01-25 03:44:15,846 INFO L252 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-01-25 03:44:15,847 INFO L409 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-01-25 03:44:15,847 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-01-25 03:44:15,847 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-01-25 03:44:15,847 INFO L87 Difference]: Start difference. First operand 216 states and 244 transitions. Second operand 5 states. [2018-01-25 03:44:16,098 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-25 03:44:16,098 INFO L93 Difference]: Finished difference Result 305 states and 346 transitions. [2018-01-25 03:44:16,098 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-01-25 03:44:16,099 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 31 [2018-01-25 03:44:16,099 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-25 03:44:16,100 INFO L225 Difference]: With dead ends: 305 [2018-01-25 03:44:16,101 INFO L226 Difference]: Without dead ends: 304 [2018-01-25 03:44:16,101 INFO L525 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2018-01-25 03:44:16,102 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 304 states. [2018-01-25 03:44:16,110 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 304 to 215. [2018-01-25 03:44:16,110 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 215 states. [2018-01-25 03:44:16,111 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 215 states to 215 states and 242 transitions. [2018-01-25 03:44:16,112 INFO L78 Accepts]: Start accepts. Automaton has 215 states and 242 transitions. Word has length 31 [2018-01-25 03:44:16,112 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-25 03:44:16,112 INFO L432 AbstractCegarLoop]: Abstraction has 215 states and 242 transitions. [2018-01-25 03:44:16,112 INFO L433 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-01-25 03:44:16,112 INFO L276 IsEmpty]: Start isEmpty. Operand 215 states and 242 transitions. [2018-01-25 03:44:16,114 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2018-01-25 03:44:16,114 INFO L314 BasicCegarLoop]: Found error trace [2018-01-25 03:44:16,114 INFO L322 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-25 03:44:16,115 INFO L371 AbstractCegarLoop]: === Iteration 11 === [mainErr51RequiresViolation, mainErr69RequiresViolation, mainErr70EnsuresViolation, mainErr26RequiresViolation, mainErr54RequiresViolation, mainErr66RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr31RequiresViolation, mainErr46RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr58RequiresViolation, mainErr62RequiresViolation, mainErr15RequiresViolation, mainErr49RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, 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, mainErr68RequiresViolation, mainErr45RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr60RequiresViolation, mainErr9RequiresViolation, mainErr67RequiresViolation, mainErr53RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr8RequiresViolation, mainErr34RequiresViolation, mainErr47RequiresViolation, mainErr14RequiresViolation, mainErr40RequiresViolation]=== [2018-01-25 03:44:16,115 INFO L82 PathProgramCache]: Analyzing trace with hash -982263633, now seen corresponding path program 1 times [2018-01-25 03:44:16,115 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-25 03:44:16,116 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-25 03:44:16,116 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-25 03:44:16,116 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-25 03:44:16,116 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-25 03:44:16,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-25 03:44:16,130 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-25 03:44:16,253 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 03:44:16,253 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-25 03:44:16,253 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-01-25 03:44:16,253 INFO L252 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-01-25 03:44:16,254 INFO L409 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-01-25 03:44:16,254 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-01-25 03:44:16,254 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-01-25 03:44:16,254 INFO L87 Difference]: Start difference. First operand 215 states and 242 transitions. Second operand 5 states. [2018-01-25 03:44:16,685 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-25 03:44:16,685 INFO L93 Difference]: Finished difference Result 333 states and 380 transitions. [2018-01-25 03:44:16,685 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-01-25 03:44:16,685 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 31 [2018-01-25 03:44:16,686 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-25 03:44:16,687 INFO L225 Difference]: With dead ends: 333 [2018-01-25 03:44:16,687 INFO L226 Difference]: Without dead ends: 332 [2018-01-25 03:44:16,688 INFO L525 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2018-01-25 03:44:16,688 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 332 states. [2018-01-25 03:44:16,702 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 332 to 214. [2018-01-25 03:44:16,702 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 214 states. [2018-01-25 03:44:16,704 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 214 states to 214 states and 240 transitions. [2018-01-25 03:44:16,704 INFO L78 Accepts]: Start accepts. Automaton has 214 states and 240 transitions. Word has length 31 [2018-01-25 03:44:16,704 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-25 03:44:16,704 INFO L432 AbstractCegarLoop]: Abstraction has 214 states and 240 transitions. [2018-01-25 03:44:16,704 INFO L433 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-01-25 03:44:16,705 INFO L276 IsEmpty]: Start isEmpty. Operand 214 states and 240 transitions. [2018-01-25 03:44:16,705 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2018-01-25 03:44:16,706 INFO L314 BasicCegarLoop]: Found error trace [2018-01-25 03:44:16,706 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, 1] [2018-01-25 03:44:16,706 INFO L371 AbstractCegarLoop]: === Iteration 12 === [mainErr51RequiresViolation, mainErr69RequiresViolation, mainErr70EnsuresViolation, mainErr26RequiresViolation, mainErr54RequiresViolation, mainErr66RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr31RequiresViolation, mainErr46RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr58RequiresViolation, mainErr62RequiresViolation, mainErr15RequiresViolation, mainErr49RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, 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, mainErr68RequiresViolation, mainErr45RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr60RequiresViolation, mainErr9RequiresViolation, mainErr67RequiresViolation, mainErr53RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr8RequiresViolation, mainErr34RequiresViolation, mainErr47RequiresViolation, mainErr14RequiresViolation, mainErr40RequiresViolation]=== [2018-01-25 03:44:16,706 INFO L82 PathProgramCache]: Analyzing trace with hash -1048421776, now seen corresponding path program 1 times [2018-01-25 03:44:16,706 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-25 03:44:16,707 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-25 03:44:16,707 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-25 03:44:16,707 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-25 03:44:16,708 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-25 03:44:16,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-25 03:44:16,729 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-25 03:44:17,002 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 03:44:17,002 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-25 03:44:17,002 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2018-01-25 03:44:17,003 INFO L252 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-01-25 03:44:17,003 INFO L409 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-01-25 03:44:17,003 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-01-25 03:44:17,003 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2018-01-25 03:44:17,004 INFO L87 Difference]: Start difference. First operand 214 states and 240 transitions. Second operand 9 states. [2018-01-25 03:44:18,234 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-25 03:44:18,234 INFO L93 Difference]: Finished difference Result 224 states and 249 transitions. [2018-01-25 03:44:18,338 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-01-25 03:44:18,338 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 35 [2018-01-25 03:44:18,338 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-25 03:44:18,339 INFO L225 Difference]: With dead ends: 224 [2018-01-25 03:44:18,339 INFO L226 Difference]: Without dead ends: 223 [2018-01-25 03:44:18,340 INFO L525 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 1 SyntacticMatches, 1 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 03:44:18,340 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 223 states. [2018-01-25 03:44:18,350 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 223 to 213. [2018-01-25 03:44:18,351 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 213 states. [2018-01-25 03:44:18,352 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 213 states to 213 states and 239 transitions. [2018-01-25 03:44:18,352 INFO L78 Accepts]: Start accepts. Automaton has 213 states and 239 transitions. Word has length 35 [2018-01-25 03:44:18,353 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-25 03:44:18,353 INFO L432 AbstractCegarLoop]: Abstraction has 213 states and 239 transitions. [2018-01-25 03:44:18,353 INFO L433 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-01-25 03:44:18,353 INFO L276 IsEmpty]: Start isEmpty. Operand 213 states and 239 transitions. [2018-01-25 03:44:18,357 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2018-01-25 03:44:18,357 INFO L314 BasicCegarLoop]: Found error trace [2018-01-25 03:44:18,357 INFO L322 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-25 03:44:18,357 INFO L371 AbstractCegarLoop]: === Iteration 13 === [mainErr51RequiresViolation, mainErr69RequiresViolation, mainErr70EnsuresViolation, mainErr26RequiresViolation, mainErr54RequiresViolation, mainErr66RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr31RequiresViolation, mainErr46RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr58RequiresViolation, mainErr62RequiresViolation, mainErr15RequiresViolation, mainErr49RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, 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, mainErr68RequiresViolation, mainErr45RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr60RequiresViolation, mainErr9RequiresViolation, mainErr67RequiresViolation, mainErr53RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr8RequiresViolation, mainErr34RequiresViolation, mainErr47RequiresViolation, mainErr14RequiresViolation, mainErr40RequiresViolation]=== [2018-01-25 03:44:18,357 INFO L82 PathProgramCache]: Analyzing trace with hash -1048421775, now seen corresponding path program 1 times [2018-01-25 03:44:18,357 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-25 03:44:18,358 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-25 03:44:18,358 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-25 03:44:18,359 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-25 03:44:18,359 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-25 03:44:18,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-25 03:44:18,385 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-25 03:44:18,652 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 03:44:18,652 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-25 03:44:18,652 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2018-01-25 03:44:18,652 INFO L252 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-01-25 03:44:18,653 INFO L409 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-01-25 03:44:18,653 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-01-25 03:44:18,653 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2018-01-25 03:44:18,653 INFO L87 Difference]: Start difference. First operand 213 states and 239 transitions. Second operand 10 states. [2018-01-25 03:44:19,440 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-25 03:44:19,441 INFO L93 Difference]: Finished difference Result 225 states and 250 transitions. [2018-01-25 03:44:19,441 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2018-01-25 03:44:19,441 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 35 [2018-01-25 03:44:19,441 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-25 03:44:19,442 INFO L225 Difference]: With dead ends: 225 [2018-01-25 03:44:19,442 INFO L226 Difference]: Without dead ends: 215 [2018-01-25 03:44:19,443 INFO L525 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=129, Invalid=291, Unknown=0, NotChecked=0, Total=420 [2018-01-25 03:44:19,443 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 215 states. [2018-01-25 03:44:19,448 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 215 to 194. [2018-01-25 03:44:19,448 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 194 states. [2018-01-25 03:44:19,449 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 194 states to 194 states and 219 transitions. [2018-01-25 03:44:19,449 INFO L78 Accepts]: Start accepts. Automaton has 194 states and 219 transitions. Word has length 35 [2018-01-25 03:44:19,449 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-25 03:44:19,449 INFO L432 AbstractCegarLoop]: Abstraction has 194 states and 219 transitions. [2018-01-25 03:44:19,449 INFO L433 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-01-25 03:44:19,449 INFO L276 IsEmpty]: Start isEmpty. Operand 194 states and 219 transitions. [2018-01-25 03:44:19,450 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2018-01-25 03:44:19,451 INFO L314 BasicCegarLoop]: Found error trace [2018-01-25 03:44:19,451 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, 1, 1, 1] [2018-01-25 03:44:19,451 INFO L371 AbstractCegarLoop]: === Iteration 14 === [mainErr51RequiresViolation, mainErr69RequiresViolation, mainErr70EnsuresViolation, mainErr26RequiresViolation, mainErr54RequiresViolation, mainErr66RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr31RequiresViolation, mainErr46RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr58RequiresViolation, mainErr62RequiresViolation, mainErr15RequiresViolation, mainErr49RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, 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, mainErr68RequiresViolation, mainErr45RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr60RequiresViolation, mainErr9RequiresViolation, mainErr67RequiresViolation, mainErr53RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr8RequiresViolation, mainErr34RequiresViolation, mainErr47RequiresViolation, mainErr14RequiresViolation, mainErr40RequiresViolation]=== [2018-01-25 03:44:19,451 INFO L82 PathProgramCache]: Analyzing trace with hash -436143591, now seen corresponding path program 1 times [2018-01-25 03:44:19,451 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-25 03:44:19,452 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-25 03:44:19,452 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-25 03:44:19,452 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-25 03:44:19,452 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-25 03:44:19,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-25 03:44:19,463 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-25 03:44:19,526 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 03:44:19,527 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-25 03:44:19,527 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-01-25 03:44:19,527 INFO L252 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-01-25 03:44:19,527 INFO L409 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-01-25 03:44:19,528 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-01-25 03:44:19,528 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-01-25 03:44:19,528 INFO L87 Difference]: Start difference. First operand 194 states and 219 transitions. Second operand 5 states. [2018-01-25 03:44:19,757 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-25 03:44:19,757 INFO L93 Difference]: Finished difference Result 274 states and 297 transitions. [2018-01-25 03:44:19,757 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-01-25 03:44:19,758 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 37 [2018-01-25 03:44:19,758 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-25 03:44:19,758 INFO L225 Difference]: With dead ends: 274 [2018-01-25 03:44:19,759 INFO L226 Difference]: Without dead ends: 218 [2018-01-25 03:44:19,759 INFO L525 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 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 03:44:19,759 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 218 states. [2018-01-25 03:44:19,768 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 218 to 194. [2018-01-25 03:44:19,768 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 194 states. [2018-01-25 03:44:19,769 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 194 states to 194 states and 217 transitions. [2018-01-25 03:44:19,769 INFO L78 Accepts]: Start accepts. Automaton has 194 states and 217 transitions. Word has length 37 [2018-01-25 03:44:19,770 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-25 03:44:19,770 INFO L432 AbstractCegarLoop]: Abstraction has 194 states and 217 transitions. [2018-01-25 03:44:19,770 INFO L433 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-01-25 03:44:19,770 INFO L276 IsEmpty]: Start isEmpty. Operand 194 states and 217 transitions. [2018-01-25 03:44:19,771 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2018-01-25 03:44:19,771 INFO L314 BasicCegarLoop]: Found error trace [2018-01-25 03:44:19,771 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-25 03:44:19,771 INFO L371 AbstractCegarLoop]: === Iteration 15 === [mainErr51RequiresViolation, mainErr69RequiresViolation, mainErr70EnsuresViolation, mainErr26RequiresViolation, mainErr54RequiresViolation, mainErr66RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr31RequiresViolation, mainErr46RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr58RequiresViolation, mainErr62RequiresViolation, mainErr15RequiresViolation, mainErr49RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, 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, mainErr68RequiresViolation, mainErr45RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr60RequiresViolation, mainErr9RequiresViolation, mainErr67RequiresViolation, mainErr53RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr8RequiresViolation, mainErr34RequiresViolation, mainErr47RequiresViolation, mainErr14RequiresViolation, mainErr40RequiresViolation]=== [2018-01-25 03:44:19,771 INFO L82 PathProgramCache]: Analyzing trace with hash -2094023958, now seen corresponding path program 1 times [2018-01-25 03:44:19,772 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-25 03:44:19,772 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-25 03:44:19,773 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-25 03:44:19,773 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-25 03:44:19,773 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-25 03:44:19,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-25 03:44:19,787 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-25 03:44:20,083 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 03:44:20,083 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-25 03:44:20,083 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2018-01-25 03:44:20,083 INFO L252 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-01-25 03:44:20,084 INFO L409 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-01-25 03:44:20,084 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-01-25 03:44:20,084 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2018-01-25 03:44:20,084 INFO L87 Difference]: Start difference. First operand 194 states and 217 transitions. Second operand 10 states. [2018-01-25 03:44:20,619 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-25 03:44:20,619 INFO L93 Difference]: Finished difference Result 395 states and 437 transitions. [2018-01-25 03:44:20,619 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2018-01-25 03:44:20,620 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 43 [2018-01-25 03:44:20,620 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-25 03:44:20,621 INFO L225 Difference]: With dead ends: 395 [2018-01-25 03:44:20,621 INFO L226 Difference]: Without dead ends: 285 [2018-01-25 03:44:20,621 INFO L525 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 52 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=112, Invalid=308, Unknown=0, NotChecked=0, Total=420 [2018-01-25 03:44:20,622 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 285 states. [2018-01-25 03:44:20,635 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 285 to 210. [2018-01-25 03:44:20,635 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 210 states. [2018-01-25 03:44:20,636 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 210 states to 210 states and 234 transitions. [2018-01-25 03:44:20,636 INFO L78 Accepts]: Start accepts. Automaton has 210 states and 234 transitions. Word has length 43 [2018-01-25 03:44:20,636 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-25 03:44:20,636 INFO L432 AbstractCegarLoop]: Abstraction has 210 states and 234 transitions. [2018-01-25 03:44:20,637 INFO L433 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-01-25 03:44:20,637 INFO L276 IsEmpty]: Start isEmpty. Operand 210 states and 234 transitions. [2018-01-25 03:44:20,637 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2018-01-25 03:44:20,637 INFO L314 BasicCegarLoop]: Found error trace [2018-01-25 03:44:20,638 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-25 03:44:20,638 INFO L371 AbstractCegarLoop]: === Iteration 16 === [mainErr51RequiresViolation, mainErr69RequiresViolation, mainErr70EnsuresViolation, mainErr26RequiresViolation, mainErr54RequiresViolation, mainErr66RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr31RequiresViolation, mainErr46RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr58RequiresViolation, mainErr62RequiresViolation, mainErr15RequiresViolation, mainErr49RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, 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, mainErr68RequiresViolation, mainErr45RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr60RequiresViolation, mainErr9RequiresViolation, mainErr67RequiresViolation, mainErr53RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr8RequiresViolation, mainErr34RequiresViolation, mainErr47RequiresViolation, mainErr14RequiresViolation, mainErr40RequiresViolation]=== [2018-01-25 03:44:20,638 INFO L82 PathProgramCache]: Analyzing trace with hash 1866790362, now seen corresponding path program 1 times [2018-01-25 03:44:20,638 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-25 03:44:20,639 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-25 03:44:20,639 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-25 03:44:20,639 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-25 03:44:20,639 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-25 03:44:20,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-25 03:44:20,653 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-25 03:44:20,835 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 03:44:20,836 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-01-25 03:44:20,836 INFO L187 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-01-25 03:44:20,837 INFO L199 CegarAbsIntRunner]: Running AI on error trace of length 46 with the following transitions: [2018-01-25 03:44:20,839 INFO L201 CegarAbsIntRunner]: [0], [1], [5], [6], [7], [10], [16], [21], [25], [31], [34], [35], [61], [62], [65], [70], [71], [74], [80], [84], [90], [94], [96], [99], [217], [221], [226], [230], [238], [244], [245], [246], [248], [252], [256], [331], [336], [340], [346], [349], [450], [451], [452] [2018-01-25 03:44:20,907 INFO L147 AbstractInterpreter]: Using domain VPDomain [2018-01-25 03:44:20,907 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